Operational quality control systems for construction and installation works. Recommendations for the implementation of operational quality control of construction and installation works
Operational (or intermediate) control is carried out at construction sites in the process of performing production operations or construction processes and must ensure the timely identification of defects, the causes of their occurrence and the adoption of measures for their elimination and prevention.
The composition and content of operational control is regulated by the instructions of RSN-73. This knowledge establishes a general procedure for monitoring the implementation of construction and installation and special works during the construction of buildings and structures for various purposes. The task of operational control is to ensure the compliance of the construction, installation and special work performed with the project and the requirements of the regulatory document (SNiP, GOST, OST, etc.), as well as in increasing the responsibility of the performers themselves for the quality of the work performed.
Intermediate control is carried out according to operational control schemes (SOKK).
The operational quality control scheme should contain:
■ a sketch of the structure with an indication of the point of application of control;
■ permissible deviations according to SNiP;
■ main specifications material or structure (strength, frost resistance, fire resistance, etc.);
■ a list of operations, the performance of which must be checked with reference to who exercises this control - foreman, foreman);
■ composition of control;
■ method of control;
■ terms (stages) of carrying out;
■ a list of operations monitored with the participation of a construction laboratory, a geodetic service, as well as specialists of certain types of work. If necessary, indicate operations requiring special tests (systems, assemblies, etc.);
■ list hidden works to be handed over to the customer's technical supervision representative (examples of the design and content of the operational control scheme are given in Appendices 2 and 3) ..
The organization of operational control and verification of its implementation is usually entrusted to the chief engineers of enterprises, who are obliged to provide instructions to the line engineering and technical personnel (before starting work) on the procedure for conducting operational control with a corresponding entry in the facility construction log. Superintendents (foremen) performing operational control of work must fill out special statistical control cards, which reflect the operation performed in violation of regulatory requirements and not accepted from the first presentation. Defects, deviations from the project, GOST, OST during the operational control must be eliminated before the start of subsequent operations.
INSTALLATION OF UNDERGROUND WALL UNITS
03.13.01-87 pp. 3.5, 3.6, tab. 12
Limit deviations:
- from the alignment of the installation guidelines of the wall blocks with the risks of centering axes - no more than 12 mm;
- from the vertical of the top of the planes of the wall blocks -12 mm.
The grade of the solution must correspond to the design one.
The mobility of the bedding solution should be 5-7 cm.
The installation of wall blocks should be carried out in compliance with the dressing.
Not allowed:
The use of a solution, the setting process of which has already begun, as well as the restoration of its plasticity by adding water;
Contamination of the bearing surfaces.
| STAGES OF WORK | CONTROLLED OPERATIONS | CONTROL (method, volume) |
DOCUMENTATION |
| Preparatory work | Verify: The quality of the surface and appearance of the blocks, the accuracy of their geometric dimensions; Transfer of the main axes of the foundations to the cast-off; Preparation of foundation blocks for installation, including cleaning the supporting surfaces from dirt and ice |
Visual Visual, measuring Measuring Visual, every element |
Passports for plates and interlocks, general work log |
| Installation fundamental |
Control: Installation of foundation blocks, compliance of their position in plan and height with the requirements of the project; The density of the adhesion of the base of the foundation blocks to the surface of the base; Grouting the joints cement mortar according to project requirements |
Visual |
General work log |
| Acceptance completed |
Verify: Deviation from the vertical of the planes of the wall blocks; Deviation of the axes of the foundation blocks relative to the alignment axes; Grouting joints between blocks |
Measuring, each element Visual |
Executive geodetic scheme, acceptance certificate |
Control and measuring tool: level, tape measure, metal ruler, plumb line, rule.
Operational control is carried out by a foreman (foreman), a surveyor - in the process of performing work. Acceptance control is carried out by: an employee of the quality service, a foreman (foreman), a representative of the customer's technical supervision.
Requirements for the quality of the structures used
GOST 13580-85 *. Reinforced concrete slabs for strip foundations. Technical conditions. GOST 13579-78 *. Concrete blocks for basement walls. Technical conditions.
Up to 1000 mm - +10 mm;
St. 1000 to 1600 mm - ± 10 mm;
St. 1600 to 3200 mm - ± 15 mm.
Length and width tolerances:
Deviation of the position of the mounting hinge above the plane of the plate + 10 ... -5 mm. Deviations in the position of embedded products:
In the plane of the slab - 10 mm;
From the plane of the slab - 3 mm.
Non-straightness of the upper plane of the slab in any section along the entire length or width:
Up to 1000 mm - 1.5 mm;
Over 1000 to 1600 mm - 3.0 mm;
Over 1600 to 3200 mm - 4.0 mm.
Not allowed:
On the surface of slabs, sinks with a diameter of more than 20 mm or chips of ribs with a depth of more than 20 mm.
Permissible deviations of block sizes:
In length - ± 13 mm;
in width and height - ± 8 mm;
The dimensions of the cutouts are ± 5 mm.
The deviation from the straightness of the profile of the block surfaces should not exceed 3 mm per
the entire length and width of the block.
Not allowed:
- cracks, except for local, superficial, shrinkage cracks with a width of no more than 0.1 mm;
- outcropping of reinforcement, with the exception of outlets.
Work instructions SNiP 3.03.01-87 pp. 3.9,3.11
Installation of foundations is allowed only after the entire complex of earthworks has been completed, the axes have been laid out and the foundation has been installed. Prior to the start of installation, on the upper edges of foundation slabs and blocks and at their bases, risks should be applied with indelible paint, fixing the position of the axes of the slabs and blocks. The supporting surfaces of the slabs and blocks should be cleaned of contamination. The installation of wall blocks should be carried out starting with the installation of lighthouse blocks in the corners of the building and at the intersection of the axes. The lighthouse blocks are installed by combining their axial risks with the risks of the alignment axes in two mutually perpendicular directions. The installation of ordinary blocks should be started after verifying the position of the lighthouse blocks in plan and in height.
Ordinary blocks should be installed, orienting the bottom along the cut of the blocks of the lower row, and the top along the center line. Exterior wall blocks installed below ground level must be aligned to the inner sides e walls, and above - along the outer. Vertical and horizontal joints must be filled with mortar and sewn on both sides.
INSTALLATION OF BALCONY PLATES AND LINKS
Technical requirements
SNiP 3.03.01-87 pp. 3.5, 3.6, tab. 12
Balcony slabs:
The difference between the levels of the plane of the balcony slab and the floor of the room should be no more than 80-1000 mm;
The slope of the balcony slab from outer wall - 2%.
Jumpers:
Permissible deviations of the marks of the supporting surfaces of the wall -10 mm;
The size of the support of the lintels on the walls - according to the project;
The side surface of the lintels should not extend beyond the plane of the wall.
Requirements for the quality of the materials used
GOST 25697-83 *. Slabs of balconies and loggias are reinforced concrete. General technical conditions... GOST 948-84. Reinforced concrete lintels for buildings with brick walls... Technical conditions.
Scope of operations and controls
| STAGES OF WORK | CONTROLLED OPERATIONS | CONTROL (method, volume) |
DOCUMENTATION |
| Preparatory work | Verify: Availability of a quality document; Surface quality, accuracy of geometric parameters, appearance of slabs, lintels; The presence of markings that determine the design positions of plates and lintels |
Visual Visual, measuring each element |
Passports (certificates), general work log |
| Installation of balcony slabs | Control: Installation of balcony slabs in the design position; The quality of welding work; Installation of reinforced concrete lintels in the design position |
Measuring, each element Visual, Measuring Measuring, each element |
General work journal, journal welding works |
| Acceptance of completed works | Verify: The actual position of the mounted slabs and lintels; Quality of welded joints, monolithic joints; Appearance elements |
Measuring Technical inspection Visual | Certificate of survey (acceptance) of work performed |
Control and measuring tool: metal tape measure, metal ruler, plumb line, level, level.
Operational control is carried out by: foreman (foreman), engineer (laboratory assistant) - in the process of work.
Acceptance control is carried out by: quality service workers, foreman (foreman), representatives of the customer's technical supervision.
| DESCRIPTIONS | NAME | LIMIT |
| FROM GEOMETRIC parameter | geometric parameter | DEVIATION, mm |
| Deviation from linear dimension | Product length, mm: | |
| up to 2500 | ± 6 | |
| St. 2500 to 4000 | ± 8 | |
| St. 4000 | ± 10 | |
| Width and Height | ± 5 | |
| DEVIATION of the position of mortgages | Position of embedded parts: | |
| details | in plane | 3 |
| out of plane | 5 | |
| Deviation from straightness | Straightness of the face surface | |
| by lenght | ± 3 |
Reinforced concrete lintels are allowed to be made with a technological slope of the side and end faces. The dimensions of the lower edge of the web can be less than the corresponding dimensions of the upper edge:
In length - up to 20 mm;
In width - up to 8 mm.
The values of the actual deviations of the geometric parameters of the lintels and balcony slabs should not exceed the limit values indicated in the table.
Grease and rust stains are not allowed on the front surfaces of reinforced concrete products. Markings and signs are applied on the end side of the lintel, and on the balcony slab - on the end side hidden in the wall. The marking must contain:
Product brand;
Short name of the manufacturer;
Date of manufacture;
The value of the mass of the product.
Work instructions
SNiP 3.03.01-87 pp. 2.112, 3.4
Balcony slabs and lintels are installed simultaneously with the erection of the external walls. The supporting parts of the masonry for prefabricated reinforced concrete structures must be made of whole bricks in stitch rows.
When installing balcony slabs, it is necessary to carry out temporary fastenings in the form of supports from a bar. Permanent fixing must be carried out immediately according to the project requirements. Metal embedded parts hidden in masonry must be protected with an anti-corrosion coating.
For welding of fittings, embedded parts and for embedding balcony slabs, certificates of inspection of hidden works should be drawn up.
Technological control consists in checking the compliance of the characteristics, modes and other indicators of the technological process with the established requirements. A kind of technological control is operational control. At operational control product quality is checked for compliance with individual regulatory requirements implemented in the course of the next technological operation. Its purpose is to detect and eliminate defects in the process of manufacturing products or erecting buildings and structures. Operational control is performed by production personnel (workers, foremen, foremen). This type of control is considered to be labor quality control.
During operational control, check:
Hidden parameters of the product, the control of which is subsequently impossible or difficult (reinforcing cages, etc.);
Compliance with the technology for performing construction processes specified in the work production projects;
Compliance of the work performed with working drawings, building codes and regulations for the production of work and standards;
The stability of the parameters of products included in the nomenclature of control of finished products;
Product parameters depending on the quality and condition of technological equipment and technological process (thickness of the concrete cover, location of embedded parts, curvature and non-straightness of the surface).
Operational control is carried out according to special schemes of operational quality control (SOKK) for all construction and installation processes attached to flow charts or workflow charts. SOKK is a project document that defines the performers, composition, method and time of quality control of construction processes for operations. It is developed based on the requirements normative documents and state standards... It lists specific operations and indicates the requirements of the standard (or building codes and regulations) to be followed when performing this operation, and also provides a description of the tool with which the operational control is carried out. The map also indicates who specifically exercises control (worker, foreman, foreman, technical control department, etc.).
Operational control should be carried out after the completion of production operations or construction processes and ensure the timely identification of defects and the reasons for their occurrence, and
timely adoption of measures to eliminate and prevent them.
Operational control should be carried out by work producers and foremen, and self-control by work performers. Operational control should also involve construction laboratories and geodetic services. The main working documents for operational quality control should be operational control schemes developed as part of work production projects.
The operational control scheme should contain:
- sketches of structures with an indication of the permissible deviations in dimensions and the required measurement accuracy, as well as information on the required characteristics of the quality of materials;
- a list of operations or processes, the quality of which must be checked by the work manufacturer (foreman);
- a list of operations or processes controlled with the participation of a construction laboratory and a geodetic service;
- a list of hidden works subject to certification with the drawing up of an act;
- the requirements of building codes and regulations, and in necessary cases- the main characteristics of the quality of the material (structures);
- data on the composition of the control, established on the basis of the requirements of regulatory documents and working drawings, indicating what needs to be checked;
- instructions on how to control the operations performed;
- the timing of the control.
Operational control is entrusted to foremen and foremen, and its organization to chief engineers of construction and installation organizations.
7. Acceptance control.
Acceptance control finished products are carried out at the final stage of the technological process. The number of parameters checked in this case must meet the requirements of standards and building codes and regulations. Internal inspection control is carried out according to the schedule approved by the management of the enterprise, usually at least once a quarter. Acceptance control should be carried out to check and assess the quality of completed construction enterprises, buildings and structures or their parts, as well as hidden works and individual critical structures. All hidden works are subject to acceptance with the drawing up of acts from the certified one. The certificate of inspection of hidden works should be drawn up for a completed process performed by an independent unit of performers. Drawing up certificates of inspection of hidden work in cases where subsequent work should begin after a long break, should be carried out immediately before the production of subsequent work. Individual critical structures, as soon as they are ready, are subject to acceptance during construction with the preparation of an intermediate acceptance certificate for these structures. The list of critical structures subject to interim acceptance is established by the project.
In addition to production control in construction and installation organizations (input, operational, acceptance) the quality of construction is monitored by state and departmental bodies of control and supervision, acting on the basis of special provisions on them (fire, sanitary, mining, etc.). In construction organizations, organizational, technical and economic measures should be developed to ensure quality control of construction. These events should, in parity, provide for the creation of construction laboratories, geodetic services, advanced training and skills of performers. At all stages of construction, in order to check the effectiveness of previously performed production control, selectively carry out inspection control... It is carried out by special services, if they are part of the construction organization, or commissions specially created for this purpose. According to the results production and inspection quality control Construction and installation works are developing measures to eliminate the identified defects, while taking into account the requirements of the field supervision of design organizations and state supervision bodies.
"Operational control chart" is developed by an enterprise that manufactures, installs or repairs equipment (pipelines) or a specialized design and technological organization and serves to record the results of control of work mainly in the preparation and assembly of parts for welding.
The "Map ..." should reflect the following information:
the name of the enterprise and service performing operational control;
the name of the equipment (pipeline) and designation of the drawing or welding form;
the presence of marking and / or documentation confirming the acceptance of the material (semi-finished product) during the incoming inspection;
cleanliness and absence of damage on the edges and adjacent surfaces of parts;
shape and dimensions of edges, boring (distribution, calibration) of pipe parts;
the presence and type of special methods of preparation and assembly of parts (surfacing on edges and internal surfaces, hemming);
under the condition of bending, the temperature of the metal during this technological operation and the angle of bending are indicated, and under the condition of surfacing - its dimensions, the welding method and the welding materials used, indicating the batch (melt) number and standard, TU or passport;
compliance with the requirements of the PDD for the material, shape and size of backing rings (fusible inserts);
compliance with the PDD of the dimensions of the gaps, displacement of the edges (from the outer and inner sides), fracture of the axes and planes of the parts to be joined in the joint assembled for welding;
the presence of a protective coating on the surfaces of parts (in cases stipulated by the PDD) and the width of the zone of its application;
correct assembly and fastening of parts, dimensions of the assembled unit (the latter - in cases stipulated by the PDD);
date of control, last name, first name and patronymic of the person (persons) who performed operational control and his (their) signatures;
conclusion on the preparation of parts for assembly for welding.
The conclusion on the quality of preparation of parts and assembly of the joint for welding is signed by the head of the preparation and assembly work and the head of the service that carried out the control.
The program of training specialists for certification for the right
performance of work and management of work on visual
and measuring control
I THEORETICAL TRAINING PROGRAM
A. General technical course
Topic 1 Design and installation of equipment for TPP and NPP
1.1 Equipment for thermal and nuclear power plants. Types of thermal and nuclear power plants. The main elements of TPP and their purpose. Physical foundations of nuclear energy. Basic technological schemes of nuclear power plants. Purpose and classification of pipelines and equipment of TPP and NPP. NPP equipment and pipelines groups; categories of welded joints. Categories of pipelines for steam and hot water. Manufacturing, enlargement and installation of pipelines, structures and technological equipment.
1.2 Materials science.
General information about metals, alloys and their properties. Varieties of steels, their characteristics, the concept of micro- and macrostructure, the relationship between the structure and properties of steel. Technological features of various steel grades and their areas of application. Steels and alloys used for the manufacture of thermal mechanical equipment, pipelines and structures for thermal power plants and nuclear power plants. The influence of the physical and mechanical properties of steel (alloy) on the choice of the method of non-destructive testing. Basic concepts of destructive testing methods for metals and alloys; methods of destructive control and their areas of application.
1.3 General information about welding and heat treatment of welded joints.
Welding methods used in the manufacture, installation and repair of equipment and pipelines at TPPs and NPPs. Welding consumables and their fields of application. Heat treatment of welded joints of products and its purpose. Influence of heat treatment on the properties of welded joints. Welded connections. Types of pipelines welded; requirements for structural forms of welded joints. The main zones of the welded joint are: weld metal, fusion zone, heat-affected zone and base metal. Influence of the structural features of the welded joint and the metal of the product on the choice of non-destructive testing methods.
1.4 Types of defects (discontinuities) in welded joints and base metal.
Concept - discontinuity (defect). Classification of defects in welded joints and base metal of products. External (surface) and internal defects. Plane and volumetric defects. Types of defects, causes of their occurrence in welded joints and base metal of products; characteristic types of defects inherent in various welding methods. Defect prevention measures. Influence of defects on the properties and technological strength of the base metal and welded joints. Defect correction methods. Inspection methods, scope of inspection and norms for assessing the quality of fixed sections of welded joints. The number of fixes in the same area.
1.5 Technical requirements for the quality of welded joints and base metal.
General requirements for the quality of the welded joint and the base metal of the product. Incoming quality control of base and welding metals. PDD requirements for control during preparation, assembly, welding (surfacing), heat treatment and when correcting defects. Technical requirements for structural shapes and location of welded joints on the product. Acceptance quality control of welded joints. NTD requirements for the quality of welded joints of TPP and NPP products.
1.6 Basic methods of quality control of welded joints (surfacing) of products.
Methods for control of welded joints (surfacing) and base metal of products by non-destructive (physical) and destructive (laboratory) control methods. Areas of their application and physical entity... Visual and measuring control of welded joints (surfacing) and base metal of products. Non-destructive testing methods: capillary, magnetic particle, ultrasonic, radiographic and tightness (gas and liquid). General information about the destructive methods of testing welded joints. Advantages and disadvantages of non-destructive testing methods. Comprehensive use of methods for monitoring welded joints (surfacing) and base metal of products.
Quality control construction works must be in a special place. That is why the organization of such events requires, first of all, the organization of the labor process at a high level. At the same time, this includes not only the direct participation of persons in the construction of an object, but also logistics, which determines the methods, terms and quality of delivery. necessary materials or finished elements to the construction site. Therefore, simultaneously with the work related to the creation of a new object, actions are being taken to agree and check the quality of the stages already passed.
Operational quality control of construction installation works is part of the activities of supervisory authorities, which are designed to regulate work in the field of creating new capital construction projects. They monitor all types of technical measures for compliance regulatory framework RF. Each type of activity, at a certain stage, provides for specific rules and requirements that must be followed.
Excavation and first inspection
The initial and main works are primarily related to the land plot on which the construction of a new facility or the reconstruction of old buildings is supposed to be carried out. The quality control manual for construction and installation works states that, if necessary, first of all, the soil area must be checked for compliance with the following conditions:
- Is it necessary to additionally fill up the territory to bring it into a smoother configuration;
- Whether it is required to create trenches, embankments or excavations to create an enabling environment during construction and in accordance with operational control requirements
In the course of creating new capital construction objects, it must be remembered that it is important for inspection organizations to fix each stage and each action in writing with technical designations. The best option will become a magazine in which all technical documentation and the quality control system will be assessed.
The scheme of operational quality control at this stage is aimed at verifying that citizens or legal entities comply with the correct location of the foundation, the correctness of the selected area for the volume of construction work. This also includes the definition of the use in accordance with the urban planning plan of the land plot and the points established in the building permit.
At this stage of activity, a legal check of the existing documents takes place, as well as a visualized inspection of the territory for compliance with the parameters of the permitted construction and the presence of indents.
Laying the foundation
The most important stage, since it is he who is decisive for subsequent actions. The integrity of the entire object, its service life and the quality of all activities of the construction organization as a whole will depend on the quality of the basis of the real estate object.
The organization of quality control of construction work in this case is aimed at checking the soil layer directly in the place where the foundation will be installed. For this, it is additionally necessary to create a log of the quality of construction and installation works, which will be based on the survey provided by the surveyor. Thus, there should be no debris or objects that could disturb the foundation layer. Also, all work should be carried out under normal weather conditions, no precipitation, or violation of the integrity of the soil and its normal state.
It is important to take into account the quality of structures that are made of either concrete or iron materials, their distance from each other and installation methods. Any violation of the scheme can lead to negative consequences, significantly reduce the life of the building.
The tasks of operational control of the quality of construction work at the time of direct activity on the construction of buildings or structures are:
- Creation of a certain scheme of operational quality control of applied building materials and mixtures. Visual inspection bricks, blocks, beam elements and floor slabs for their external condition, excluding chips, damage and other shortcomings that prohibit the use of such elements during construction. An indication in the log of shortcomings and measures taken to replace them;
- Consideration of the operational quality control scheme at the end of the device of the main structures. Thus, a log is kept, which indicates the order of construction and installation of blocks and other systems (floor slabs, beams and columns).
Such tasks are always solved in two stages. Initially, an inspection takes place, and then a check for compliance with the construction project. The entire range of these checks is recorded in the work log and then can serve as the basis for drawing up an act of hidden deficiencies in the implementation of the activities of installation organizations. It is important to remember that any deviations from the standards at this stage will affect the quality of operation in the future. That is why organizations must first of all think about safety, which will guarantee the quality of their work.
Definition of roofing and insulation works
The beginning of repair and installation work occurs when installing insulation systems from water, noise and other negative factors. The construction scheme does not differ from the type of buildings. Therefore, even non-residential premises must be finished in such a way that the rules established by the technical supervision service are fully observed.
If we are talking about the reconstruction of an object, it is necessary to take into account the state of all systems of this structure at the moment. Therefore, in this case, control is reduced to checking the current state of the elements of hydro and noise insulation, and then a plan is developed to strengthen or replace the current systems.
As can be seen from the above, operational control consists of many systems that cannot operate separately from each other. A well-developed scheme and maximum responsibility for the work done is required.
Design and Technological Institute of Industrial Construction
OJSC PKTIpromstroy
OPERATIONAL QUALITY CONTROL CARDS OF BASIC CONSTRUCTION AND INSTALLATION WORKS
|
1. OPERATIONAL CONTROL CARD WHEN INSTALLING REINFORCED CONCRETE COLUMNS 2. OPERATIONAL CONTROL CHART WHEN INSTALLING LARGE-BLOCK TAPE FOUNDATIONS 3. OPERATIONAL CONTROL CARD WHEN INSTALLING REINFORCED CONCRETE FOUNDATIONS UNDER COLUMNS 4. OPERATIONAL CONTROL CARD WHEN MOUNTING THE BARS 5. MAP OF OPERATIONAL CONTROL OF INSTALLATION OF REINFORCED CONCRETE FIRMS AND BEAMS 6. MAP OF OPERATIONAL CONTROL OF INSTALLATION OF COVERING PANELS (COVERINGS) 7. CARD OF OPERATIONAL CONTROL OF WALL FORMWORK INSTALLATION 8. OPERATIONAL CONTROL MAP OF COLUMN AND CEILING FORMWORK INSTALLATION 9. OPERATIONAL CONTROL CARD WHEN INSTALLING THE FOUNDATION FORMWORK 10. KAPTA OF OPERATIONAL CONTROL OF STRUCTURAL REINFORCEMENT 11. MAP OF OPERATIONAL CONTROL OF FLOORS CONCRETE 12. MAP OF OPERATIONAL CONTROL OF WALL CONCRETE 13. MAP OF OPERATIONAL CONTROL OF COLUMN CONCRETE 14. CARD OF OPERATIONAL CONTROL OF PILLAR BRICKS 15. MAP OF OPERATIONAL CONTROL OF BRICK WALLS 16. CARD OF OPERATIONAL CONTROL OF INSTALLATION OF WINDOW AND DOOR BLOCKS |
1. OPERATIONAL CONTROL CARD WHEN INSTALLING REINFORCED CONCRETE COLUMNS
Tolerances for the installation of reinforced concrete columns in accordance with the requirements of SNiP 1. The difference in the marks of the top of adjacent columns or support sites (brackets, consoles) ± 10mm 2. The difference in the marks of the top of the columns or support sites within the area to be verified: with contact installation 12 + 2, where - the ordinal number of the tier when installed by beacons 10 mm 3. Displacement of the axes of the columns of single-storey buildings in the upper section from the vertical at the height of the columns H: in meters up to 10 m ± 10 mm over 10 m 0.001 N, but not more than 35 mm 4. Displacement of the axes of the columns multi-storey buildings in the upper section relative to the alignment axes for columns with a height: up to 4.5 m ± 10 mm over 4.6 m ± 15 im
Table 1
|
Operations subject to control |
Control composition |
Control method |
Control time |
Work |
Works to be activated |
Work Producer |
Preparatory work |
Correct storage |
Visually |
Before installation |
Marking the bottom of the foundation glass |
Using a level |
Before installation |
Surveyor |
Column installation |
Reliability of slinging, verticality of installation, alignment; reference pads marks; temporary attachment |
Visually; using a level; with theodolite |
During installation |
Surveyor |
Welding metal parts |
Quality of welded seams |
Visually |
During installation |
Corrosion protection of metal parts |
Visually |
During installation |
If necessary, the laboratory |
Monolithing of columns |
Thoroughness of monolithing |
Visually |
During installation |
Preparatory work (acceptance of structures) |
Availability of passports, drawings, geometrical dimensions, external defects, drawing of alignment axes, marks, dimensions of support areas, correct location of embedded parts |
Visually; with a steel meter |
Before installation |
Column site preparation |
Cleaning of glasses, dimensions of the foundation glass; the presence of scratches on the foundation |
Before installation |
Installing the mounting hardware |
Fixing precision |
Visually |
During installation |
Welding metal parts |
Compliance with the project; welding of electrodes; seam sizes |
Visually |
During installation |
Laboratory |
Cementing columns in foundations |
Grade, consistency of concrete mix, thoroughness of compaction |
Visually, using a standard cone |
During installation |
Laboratory |
2. OPERATIONAL CONTROL CHART WHEN INSTALLING LARGE-BLOCK TAPE FOUNDATIONS
Tolerances for the installation of large-block strip foundations in accordance with the requirements of SNiP III -16-73 1. Offset of the axes of foundation blocks and foundation wall blocks relative to the centerline axes ± 10 mm 2. Deviation of the marks of the upper supporting surfaces of foundation elements - 10 mm 3. Offset of axes or edges of wall blocks in the lower section relative to the center axes or geometric axes of the structures below them ± 5mm
table 2
|
Control composition |
Control method |
Control time |
Persons involved in control |
Works to be activated |
Work Producer |
Preparatory work |
Determination of the state of soils |
Visually |
Before installation |
The correct location of the pit relative to the center drawing, the reliability of fastening, the mark of the bottom of the pit |
Visually, using a level and tape measure |
Before installation |
Surveyor |
Sand or gravel top mark |
Using a level |
Before installation |
Surveyor |
Correct storage |
Visually |
Before installation |
Stake out foundation axes |
Accuracy of determining the position of the corners of the building. Compliance with the project of the distances between the axes of prefabricated foundations |
With theodolite and tape measure |
Before installation |
Surveyor |
Installation of foundation blocks |
Visually |
During installation |
Precision of installation, foundation blocks. Support and abutment density |
Using a level and a plumb line |
During installation |
Compliance with the design |
Using a level |
After installing blocks |
Surveyor |
Preparatory work |
Sufficiency of the size of the pits |
With a tape measure |
Before installation |
The thickness of the sand or gravel pad, the quality of its compaction |
Visually, using a steel meter |
Before installation |
Cleaning foundation blocks from dirt, from snow in winter |
Visually |
Before installation |
Availability of passports for reinforced concrete structures; compliance of the geometric dimensions of the blocks with the project; external defects |
Roulette |
Before installation |
Stake out the foundation axes |
The correct tension of the axles, the accuracy of the intersection of the axes on the foundation blocks |
With theodolite |
Before installation |
Surveyor |
Installation of foundation blocks |
Compliance with installation technology, Technological map |
Visually |
During installation |
3. OPERATIONAL CONTROL CARD WHEN INSTALLING REINFORCED CONCRETE FOUNDATIONS UNDER COLUMNS
Tolerances for the installation of reinforced concrete foundations for columns in accordance with the requirements of SNiP III -16-73 1. Displacement of the axes of the foundation glasses relative to the centerline axes ± 10mm 2. The deviation of the marks of the upper supporting surfaces of the foundation elements - 10mm 3. The deviation of the marks of the bottom of the foundation glasses - 20mm
Table 3
|
Operations subject to control |
Control composition |
Control method |
Control time |
Works to be activated |
Work Producer |
Preparatory work |
Preparation of the base for foundations, its condition, dimensions, marks, protection against freezing in winter |
Using a level, steel meter, tape measure |
Before installation |
Surveyor |
The dimensions of the pits, the correctness of their location and the reliability of fastening the walls of the pit, marks of the bottom of the pit |
Visually, using a level, tape measure, plumb line |
Before installation |
Base top mark and cushion horizontal |
Using a level |
Before installation |
Surveyor |
Side waterproofing of foundation blocks |
Insulation quality |
Visually |
After installation |
Preparatory work |
Sand or gravel pad thickness and compaction quality |
Visually i with a steel meter |
Before installation |
Cleaning from dirt, from snow and ice in winter |
Visually |
Before installation |
Checking the geometric dimensions of blocks, defects. Comparison of passport data of reinforced concrete structures with design |
Before installation |
Installation of control lines along the axes of the foundations |
Compliance with the project of the axes transferred to the bottom of the excavation. Accuracy of the position of the top of the control line |
With theodolite, level |
Before installation |
Installation and alignment of blocks |
Installation accuracy, compliance with design marks and axes |
With the help of a level, relative |
During installation |
Surveyor |
4. OPERATIONAL CONTROL CARD WHEN MOUNTING THE BARS
Tolerances for the installation of girders in accordance with the requirements of SNiP III -16-73 1. Displacement of the girder axes along the lower chord relative to the geometric axes of the supporting structures ± 6 mm 2. Deviation of the distances between the axes of the girders at the level of the upper chords ± 20mm 3. The tolerances of the support areas and the tolerances of the gaps between the elements are determined by the project
Table 4
|
Quality Control Persons |
Operations subject to control |
Control composition |
Control method |
Control time |
Persons involved in control |
Works to be activated |
Work Producer |
Preparatory work |
Correct storage of structures |
Visually |
Before installation |
Aligning support surfaces on columns |
Compliance of the elevations of the support pads of the columns with the design ones, the correctness of the application of the alignment axes |
With theodolite, level, steel meter |
Before installation |
Surveyor |
Installation of crossbars |
Correct and reliable slinging |
Visually |
During installation |
Alignment of the girder axes with the alignment axes on the supporting structures, verticality and density of the girder support |
Visually, using a plumb line |
During installation |
Welding of embedded parts in the joints |
Visually, using a steel meter |
During installation |
If necessary, the laboratory |
Cementing joints |
The appearance of the joints, the strength of concrete at the joint |
Visually using a reference hammer |
After stripping the joint |
Laboratory |
Preparatory work |
Compliance of geometric dimensions with design ones, external defects, availability of passports, correct location of embedded parts, cleaning them |
Visually, using a steel meter, tape measure |
Before installation |
Aligning support surfaces on columns |
Visually, using a steel meter |
Installation of crossbars |
Correctness of drawing axial and control marks on the crossbars |
Visually, using a steel meter, tape measure |
During installation |
Visually |
During installation |
Compliance with the design of the joint and the brand of electrodes according to the project |
Visually |
During installation |
Cementing joints |
Density and strength of formwork |
Visually |
During installation |
Concrete grade |
Before concreting |
Laboratory |
Joint sealing quality |
Visually |
In the process of concreting |
Joint filling quality |
Visually |
After stripping |
5. MAP OF OPERATIONAL CONTROL OF INSTALLATION OF REINFORCED CONCRETE FIRMS AND BEAMS
Tolerances for the installation of reinforced concrete trusses and beams in accordance with the requirements of SNiP III -16-73 1. Displacement of the axes of the trusses (beams) along the lower chord relative to the geometric axes of the supporting structures ± 5mm 2. Deviation of the distances between the axes of the trusses (beams) at the level of the upper chords ± 20 mm 3. The tolerances of the support areas and the tolerances of the gaps between the elements are determined by the project
Table 5
|
Quality Control Persons |
Control composition |
Control method |
Control time |
Persons involved in control |
Works to be activated |
Work Producer |
Preparatory work |
Correct storage of reinforced concrete structures |
Visually |
Before installation |
Alignment of supporting surfaces of previously mounted structures |
Compliance of the elevations of the reference pads with the design ones, the correctness of the application of the stake out axes |
Before installation |
Surveyor |
Installation of trusses, beams |
Correct and reliable slinging |
Visually |
During installation |
Alignment of axes of beams trusses with alignment axes, verticality of support structures |
Visually, using a plumb line |
During installation |
Reliability of temporary fastening |
Visually |
During installation |
Welding of embedded parts in the joints |
Welding quality, acceptance certificates for welded joints, weld dimensions |
Visually, using a steel meter |
During the installation process |
Anti-corrosion protection |
The quality of the application of the anti-corrosion layer |
Visually |
Before monolithic |
If necessary, the laboratory |
Preparatory work |
Availability of passports, geometric dimensions, external defects, reinforced concrete structures |
Visually, using a steel meter |
Before installation |
Arrangement of embedded parts, cleaning them from rust and concrete build-up |
Visually, using a steel meter |
Before installation |
Alignment of supporting surfaces of structures |
Position of support pads and embedded parts |
Visually |
Before installation |
Installation of trusses of beams |
The presence and correctness of drawing axial and control marks on structures |
With a steel meter |
During installation |
Correctness of installation technology |
Visually |
During installation |
Welding of embedded parts in the joints |
Type of electrodes, conformity of the joint to the project |
Visually |
During installation |
Cementing joints |
Density and strength of formwork |
Visually |
Before concreting |
Concrete grade, compaction quality |
Visually |
In the process of monolithing |
Laboratory |
Joint appearance, quality of sealing |
Visually |
In the process of monolithing |
Compliance of the elevations of the installed structures with the design ones, the distance between the axes |
Visually |
After installation |
Surveyor |
6. MAP OF OPERATIONAL CONTROL OF INSTALLATION OF COVERING PANELS (COVERINGS)
Tolerances for the installation of floor panels (coverings) in accordance with the requirements of SNiP III -16-73 1. The difference in the marks of the front surfaces of two adjacent floor slabs (coverings) at the joint is ± 5 mm 2. The displacement in plan of the cover plates or floors relative to their design position by support surfaces and nodes of trusses and other supporting structures (along the supporting sides of the slabs), not allowed 3. Permissible deviations in the dimensions of the support areas and gaps between structural elements are determined by the project
Table 6
|
Quality Control Persons |
Operations subject to control |
Control composition |
Control method |
Control time |
Persons attracted with control |
Works to be activated |
Work Producer |
Preparatory work |
Correct storage of panels |
Visually |
Before installation |
Compliance of elevations and support areas with the design |
Using a level, tape measure, steel meter |
Before installation |
Surveyor |
Installation of floor panels |
Instrumental check of the mounting horizon of each floor |
Using a level |
During installation |
Surveyor |
Corrosion protection of anchors |
Anti-corrosion coating quality |
Visually |
Securing joints |
Laboratory |
Cementing joints |
The quality of the monolithing of the joints |
Visually |
After monolithing |
Preparatory work |
Availability of passports, geometric changes, surface quality of structures |
Before installation |
Correct location of embedded parts, mounting loops |
Visually, using a tape measure, a steel meter |
Before installation |
Implementation of the support row of brickwork with pokes |
Visually |
Before installation |
Making a bed from a solution |
Compliance with the grade of the mortar to the project, the thickness of the mortar layer |
Visually |
During installation |
Laboratory |
Panel mounting |
Compliance with the support area, the position of the panel in the plan, the density of abutment to the supporting surface, the correct installation technology |
Visually |
During installation |
Anchoring panels |
Compliance of anchoring with project requirements |
Visually |
Before monolithic |
Cementing joints |
Cleaning and moistening of the abutting surfaces, compliance of the grade of solution or concrete with the design |
In the process of monolithing |
Laboratory |
7. CARD OF OPERATIONAL CONTROL OF WALL FORMWORK INSTALLATION
Tolerances when installing wall formwork in accordance with the requirements of SNiP III -15-76 1. Distance from the vertical or design slope of the planes of wall formwork and their intersection lines with a wall height of up to 5m 10 mm with a wall height of more than 5m 15 mm 2. Offset of the axes of the wall formwork : from the design position 8 mm 3. Internal dimensions of the wall formwork from the design dimensions 3 mm 4. Local irregularities in the formwork when checking with a 2-meter rail 3 mm
Table 7
|
Quality Control Persons |
Operations subject to control |
Control composition |
Control method |
Control time |
Persons involved in control |
Works to be activated |
Work Producer |
Preparatory work |
Visually |
Before installing the formwork |
Formwork installation |
After installing the wall formwork (before fixing it) |
Surveyor |
Accuracy of installation of embedded parts, their fastening |
With a meter, tape measure |
After installing the formwork |
Preparatory work |
Compliance with the project and quality of formwork panels, correct storage |
Visually, using a meter |
Before installing the formwork |
Formwork installation |
Compliance with design dimensions, verticality |
Using a meter, a plumb line |
During the installation of the formwork |
The quality of the formwork fasteners |
Visually |
During the installation of the formwork |
The quality of the inner surface of the formwork |
During the installation of the formwork |
8. OPERATIONAL CONTROL MAP OF COLUMN AND CEILING FORMWORK INSTALLATION
Tolerances for the installation of the formwork of columns and ceilings in accordance with the requirements of SNiP III -15-76 1. The distance between the supports of the bending formwork elements and the distance between the ties of the vertical supporting structures from the design dimensions: for 1 m length of 25 mm for the entire span of at least 75 mm 2. Distance from the vertical or the design slope of the planes of the formwork and the lines of their intersection: for 1 m of height 5 mm for the entire height of columns up to 5 m 10 mm - "- more than 5 m 15 mm for the entire height of beams 5 mm 3. Displacement of the axes of the formwork from the design position of the columns 8 mm - "- beams 10 mm 4. The distance between the inner surfaces of the formwork of columns, beams from the design dimensions - 3 mm 5. Local irregularities of the formwork when checking with a 2-meter rail - 3 mm
Table 8
|
Quality Control Persons |
Operations subject to control |
Control composition |
Control method |
Control time |
Persons involved in control |
Works to be activated |
Work Producer |
Preparatory work |
Determination of the state of the base (for columns) |
Visually |
Before installing the formwork |
Formwork installation |
The suitability of the supporting scaffolds and scaffolds to the project, their stability and rigidity |
Visually, using a steel meter, tape measure, plumb line |
Before installing the formwork |
Correspondence of the position of the formwork to the installation axes |
Using theodolite, plumb line, tape measure |
During the installation of the formwork |
Surveyor |
Accuracy of installation of embedded parts |
With a steel meter, tape measure |
Formwork ambassador |
Preparatory work |
Quality of formwork panels and fasteners |
Visually, using a steel meter |
Before installing the formwork |
Correct storage of formwork elements |
Visually |
Before installing the formwork |
Formwork installation |
Compliance with design dimensions and marks |
Using a level, plumb line, level, steel meter, tape measure |
During the installation of the formwork |
The surface quality of the formwork (density in the conjugation of the boards) |
Visually, using a 2-meter rail |
During the installation of the formwork |
Formwork fastening quality |
Visually |
During the installation of the formwork |
9. OPERATIONAL CONTROL CARD WHEN INSTALLING THE FOUNDATION FORMWORK
Tolerances for the installation of formwork foundations in accordance with the requirements of SNiP III -15-76 1. Distance from the vertical or the design position of the planes of the formwork foundations and their intersection lines at 1m height 5mm 2. Displacement of the foundation formwork axes from the design position of 15mm foundations for steel structures , (L is the length of the span or the step of the structure, m) 3. Local unevenness of the formwork (when checking with a 2 m long rail) 3 mm
Table 9
|
Quality Control Persons |
Operations subject to control |
Control composition |
Control method |
Control time |
Persons involved in control |
Works to be activated |
Work Producer |
Preparatory work |
Determination of the condition of the foundation |
Visually |
Before installing the formwork |
Formwork installation |
Correspondence of the position of the formwork to the installation axes, the accuracy of the installation of embedded parts and their fastening |
Using theodolite, tape measure, plumb line, steel meter |
After installing the formwork |
Surveyor |
Preparatory work |
Compliance with the project and the quality of formwork panels, blocks and fasteners, correct storage of formwork elements |
Visually, using a steel meter |
Before installing the formwork |
Formwork installation |
Compliance with design dimensions and marks. The horizontality and verticality of the formwork elements, the quality of the fasteners, the quality of the inner surface of the formwork |
Visually, using a level, plumb line, steel meter |
During the installation of the formwork |
10. KAPTA OF OPERATIONAL CONTROL OF STRUCTURAL REINFORCEMENT
Tolerances for the reinforcement of structures in accordance with the requirements of SNiP III -15-76 1. Reinforcing steel supplied to the construction must undergo an external examination upon acceptance. measurements and control tests in cases stipulated in the project 2. Replacement of the reinforcing steel provided for by the project is agreed with the design organization 3. Before the installation of the reinforcement, the formwork is checked, the shims are fastened, providing a gap for the protective layer equipment 4. The assembled reinforcement is secured from displacement and protected from damage during concreting 5. The displacement of reinforcing bars when they are installed in the formwork should not exceed 1/5 of the largest diameter of the bar and 1/4 of the diameter of the bar to be installed 6. It is prohibited to use spacers to form a protective layer from rebar scraps, wooden bars and crushed stoneTable 10
|
Quality Control Persons |
Operations subject to control |
Control composition |
Control method |
Control time |
Persons involved in control |
Works to be activated |
Work Producer |
Reinforcement acceptance |
Compliance of reinforcing meshes and cages to the project (passport) |
Visually |
Before installation |
Installation of fittings |
Installation of grids, frames, embedded parts in accordance with the project |
With a plumb line, steel meter |
During installation |
Providing a protective layer |
With a steel meter |
When installing the formwork |
Securing joints, frames, meshes (welding, knitting) |
Visually |
After fixing |
Laboratory |
Acceptance fittings |
Selectively Checks the diameter of the reinforcement, the distance between the working bars in meshes and frames |
Using a caliper and a steel meter |
Before installation |
Position of embedded parts |
With a steel meter |
Before installation |
Quality of execution of reinforcement attachment points in the mesh frame |
Visually |
Before installation |
Reinforcement storage |
Correctness of warehousing and storage |
Visually |
Before installation |
Correct sling |
Visually, using a steel meter |
During the installation of fittings |
Installation of fittings |
Compliance with the technology adopted in technological map or Poland |
Visually |
During the installation of fittings |
Correctness of the layout of the grids, the correct fastening of the reinforcement in the formwork |
Visually, using a steel meter |
During the installation of fittings |
Correct installation of running boards on the slab |
Visually |
During the installation of fittings |
11. MAP OF OPERATIONAL CONTROL OF FLOORS CONCRETE
Tolerances when concreting floors in accordance with the requirements of SNiP III -15-76 1. Local deviations of the concrete surface from the design when checking structures with a rail 2 m ± 5 mm long 2. In the marks of surfaces and embedded parts that serve as supports for metal or prefabricated reinforced concrete elements ± 5 mm 3. In the location of the anchor bolts, in plan inside the contour of the support - 5 mm in the plan outside the contour of the support - 10 mm 4. The difference in height marks at the junction of two adjacent surfaces - 3mm
Table 11
|
Quality Control Persons |
Operations subject to control |
Control composition |
Control method |
Control time |
Persons involved in control |
Works to be activated |
Work Producer |
Preparatory work |
Formwork quality |
Visually |
Before concreting |
Condition of fittings and embedded parts, certificate of acceptance of fittings |
Visually |
Before concreting |
Stripping |
Surface quality, compliance with the design of holes, geometric dimensions |
Visually, using a meter |
After stripping |
Concrete strength, homogeneity, cracks |
Visually, ultrasonic instrument |
After stripping |
Laboratory |
Preparatory work |
Substrate quality, removal of the top layer at working seams, notching, rinsing |
Visually |
Before concreting |
Laying concrete mix |
Concrete mix quality |
With the help of the StroyTSNIIL cone, press |
Before concreting |
Laboratory |
Visually |
In the process of laying |
Visually |
In the process of laying |
Outdoor temperature |
With a thermometer |
In the process of laying |
Concrete compaction |
Permutation step and immersion depth of vibrators |
Visually |
In the process of compaction |
Adequate vibration and concrete thickness during compaction |
Visually |
In the process of compaction |
Concrete care during hardening |
With a thermometer |
During hardening |
12. MAP OF OPERATIONAL CONTROL OF WALL CONCRETE
Tolerances when concreting walls in accordance with the requirements of SNiP III -15-76 1. Planes and lines of their intersection from the vertical or the design slope to the entire height: walls supporting monolithic coverings and ceilings ± 15mm walls supporting prefabricated joist structures ± 10mm 2. Horizontal planes on the whole plane of the area to be verified ± 20mm 3. Local deviations of the concrete surface from the design when checking the structure with a rail 2 m long ± 5 mm 4. In the marks of surfaces and embedded parts - 5 mm
Table 12
|
Quality Control Persons |
Operations subject to control |
Control composition |
Control method |
Control time |
Persons involved in control |
Works to be activated |
Work Producer |
Preparatory work |
Formwork quality |
Visually |
Before concreting |
Compliance with the base elevation design |
Using a level |
Before concreting |
Surveyor |
Condition of fittings and embedded parts, certificate of acceptance of fittings |
Visually |
Before concreting |
Stripping |
Surface quality, compliance with the design of holes, openings, channels, geometric dimensions |
Visually, using a steel meter |
After stripping |
The strength of concrete, its homogeneity, the presence of supports, cracks |
With an ultrasonic device, visually |
After stripping |
Laboratory |
Preparatory work |
The quality of the base, the removal of the top layer at the working seams, the notch, the groove, the presence of waterproofing |
Visually |
Before concreting |
Laying concrete mix |
Concrete mix quality (mobility, cube strength) |
Before concreting |
Laboratory |
The correctness of the technology for placing the concrete mixture |
Visually |
In the process of laying |
Correctness of working seams |
Visually |
In the process of laying |
Outside air and concrete temperature (winter) |
With a thermometer |
In the process of laying |
Concrete compaction |
Permutation step and immersion depth of vibrators |
Visually, using a steel meter |
In the process of compaction |
Adequate vibration and concrete layer thickness when laying |
Visually, using a steel meter |
In the process of compaction |
Compliance with humidity and temperature regimes |
With a thermometer |
During hardening |
13. MAP OF OPERATIONAL CONTROL OF COLUMN CONCRETE
Concreting tolerances in accordance with the requirements of SNiP III -15-76 1. Planes and lines of their intersection from the vertical or from the design slope to the entire height of the columns supporting monolithic coverings and floors ± 15 mm As above for columns supporting prefabricated girders ± 10 mm 2. Horizontal planes on the entire plane of the area to be verified ± 20 mm 3. Local deviations of the concrete surface from the design when checking structures with a 2 m long rail, except for supporting surfaces ± 6 mm 4. In the dimensions of the cross-section of elements + 6 mm - 3 mm 5. In the marks of surfaces and embedded parts that serve as supports for metal or prefabricated reinforced concrete elements - 5 mm
Table 13
|
Quality Control Persons |
Operations subject to control |
Control composition |
Control method |
Control time |
Persons or subdivisions involved in control |
Works to be activated |
Work Producer |
Preparatory work |
Formwork quality |
Visually |
Before concreting |
Compliance with the base elevation design |
Using a level |
Before concreting |
Surveyor |
Condition of fittings, embedded parts, certificate of acceptance of fittings |
Visually |
Before concreting |
Stripping |
Determination of the surface quality, compliance with the project of geometric dimensions, the correct location of embedded parts, marks of the top of the columns |
Visually, using a steel meter, level |
After stripping |
Surveyor |
Determination of the strength of concrete, its homogeneity |
Using ultrasonic devices |
After stripping |
Laboratory |
Preparatory work |
Determination of the quality of the base (cleaning from dirt, ice, snow, etc.) |
Visually |
Before concreting |
Laying concrete mix |
Determination of the quality of the concrete mix (mobility, cube strength) |
With the help of the StroyTSNIIL cone, press (PSU-500) |
Before installation into the structure |
Laboratory |
Compliance with the technology of concrete placement |
Visually |
In the process of laying |
Concrete compaction |
Temperature control of the outside air and concrete mix (in winter) |
With a thermometer |
In the process of laying |
Compliance with the step of permutation and the immersion depth of the vibrators, the correctness of their installation |
Visually, using a steel meter |
In the process of compaction |
Determination of the sufficiency of vibration and the thickness of the concrete layer |
Visually, using a steel meter |
In the process of compaction |
Care concrete mix when hardening |
Compliance with humidity and temperature conditions |
With a thermometer |
During hardening |
Laboratory |
14. CARD OF OPERATIONAL CONTROL OF PILLAR BRICKS
Tolerances for brickwork of pillars in accordance with the requirements of SNiP III -17-78 1. Deviations from the design dimensions: 10mm in thickness along the marks of cutoffs and floors 10mm in offset of the axes of structures 10mm 2. Deviation of surfaces and masonry angles from the vertical: 10mm per floor for the whole building 30mm 3. Irregularities on the vertical surface of the masonry, detected when applying a strip with a length of 2m 5mm
Table 14
|
Quality Control Persons |
Operations subject to control |
Control composition |
Control method |
Control time |
Persons involved in control |
Works to be activated |
Work Producer |
Preparatory work |
Correctness of anchoring of pillars to alignment axes |
Visually, using a plumb line |
Before laying |
Brickwork pillars |
Determining the correctness of the masonry technology and dressing the seams |
Using a plumb line, steel meter, visually |
In the process of laying |
Determination of the conformity of the actual position of the performed brick pillars the project, the alignment of the pillars of different floors |
Visually, using a plumb line, a steel meter |
In the process of laying |
Marking cutoffs of brickwork and floors, the correctness of the cushion under the beams, the support of the beams on the cushions and their embedding in the masonry |
Visually, using a level, steel meter |
After installing the pillow and installing the beam |
Surveyor |
Preparatory work |
Determination of the base for the pillars, the presence of waterproofing |
Visually |
Before the start of laying the pillars |
Determination of the quality of bricks, fittings, embedded parts |
Visually, measuring, checking passports and certificates |
Before the start of laying the pillars |
Laboratory |
Brickwork pillars |
Sizing, filling and dressing of seams; |
With a steel meter |
After completing every 5m of masonry |
The geometric dimensions of the cross-section of the pillars |
With a steel meter |
In the process of masonry |
Verticality of masonry, irregularities on the surface |
Using a plumb line, rail, steel meter |
After the end of the laying of the pillar to the height of the floor |
Reinforcement of masonry |
Correct position of reinforcement, distance between grids along the height of the column, diameter of rebars and distance between them |
Using a steel meter, caliper |
As the reinforcement is laid |
15. MAP OF OPERATIONAL CONTROL OF BRICK WALLS
Tolerances for masonry walls in accordance with the requirements of SNiP III -17-78 1. Deviation from the design dimensions; by thickness 15 mm by marks of cutoffs and floors 10 mm by width of walls 15 mm by width of openings 15 mm by offset of adjacent axes window openings 20 mm by displacement of the axes of structures 10 mm 2. Deviations of surfaces and masonry angles from the vertical: for one floor 10 mm for the whole building 30 mm 3. Deviations of rows of masonry from the horizontal by 10 m length 15 mm 4. Irregularities on the vertical surface of the masonry, detected when overlaying a 2-meter rail 10 mm
Table 15
|
Quality Control Persons |
Operations subject to control |
Control composition |
Control method |
Control time |
Persons involved in control |
Works to be activated |
Work Producer |
Brickwork walls. |
The quality of bricks, mortar, fittings, embedded parts |
External examination, measurement, verification of passports and certificates |
Before laying the walls of the floor |
In case of doubt, the laboratory |
Axis layout is correct |
With a steel tape measure, meter |
Before laying |
Horizontal marks of cutoffs of masonry for overlapping |
With the help of a level, staff.level |
Before installing floor panels |
Surveyor |
Alignment of ventilation ducts and sealing of ventilation units |
Visually, using a plumb line |
After finishing laying the walls of the floor |
Reinforcement of masonry |
Correct positioning of reinforcement, diameter of bars, etc. |
Visually, using a steel meter |
Before installing the fittings |
Installation of prefabricated reinforced concrete slabs overlap |
Supporting ceilings on groans, embedding, anchoring |
Visually, using a steel meter |
After installing the floor |
Anti-corrosion coating of embedded parts |
Thickness, density and adhesion of the coating |
Visually, using a thickness gauge, an engraving graver |
Before sealing |
Laboratory |
Installation of balconies |
Embedding, elevation, slope of balconies |
With a steel meter, level, 2 meter rail |
After installing balconies |
Masonry walls |
Geometric dimensions of the masonry |
With a steel tape measure, meter |
Verticality, horizontality and masonry surface |
Using a level, rail, plumb line |
During and after the end of the masonry of the walls of the floor |
Quality of masonry joints |
With a steel meter, 2 meter rail |
After every 10m 3 masonry has been completed |
Stakeout and bottom elevations of openings |
Using a steel tape measure. level, level |
Before laying the walls |
Removal of the mark + 1m from the finished floor |
Using a level |
After finishing the masonry of the floor |
Layout of apartments |
Visually |
After the start of laying the walls |
Geometric dimensions of the premises |
Using a steel tape measure |
After the start of laying the walls |
Jumper setting |
Jumper position, support, placement, termination |
Visually, using a steel meter |
After installing the jumpers |
Installation staircases |
Position of pistillate pads, support, placement, embedding |
Visually, using a steel meter |
After installing sites |
Welding of embedded parts |
Length, height, quality of welds |
Visually, by tapping with a hammer |
Before anti-corrosion coating |
Soundproofing device |
Construction, workmanship |
Visually |
Immediately after finishing work |
16. CARD OF OPERATIONAL CONTROL OF INSTALLATION OF WINDOW AND DOOR BLOCKS
Rules for installing window and door blocks in accordance with the requirements of SNiP III -19-76 1. Surfaces of window and door blocks adjacent to stone walls, antiseptic with waterproofing materials 2. The gaps between the box and the masonry of the outer walls are sealed with thermal insulation materials 3. Window and door frames in stone walls and partitions, they are fastened with screws or steel ruffs driven into wood antiseptic corks. Each vertical block of the box is fixed in at least 2 places, the distance between them does not exceed 1 meterTable 16
|
Quality Control Persons |
Operations subject to control |
Control composition |
Control method |
Control time |
Persons involved in control |
Works to be activated |
Work Producer |
Preparatory work |
Appearance, factory readiness, compliance with standards, ENiP and the project, completeness of delivery of window and door blocks, availability of acts of antiseptic treatment |
Visually |
When accepting blocks |
Presence of antiseptic plugs for fixing blocks |
Visually |
Before installing blocks |
Transportation and storage conditions |
Visually |
At the construction site |
Installation of door and window blocks |
Correctness of installation at a given elevation and along a given axis |
Using a level, plumb line, tape measure |
After installing the boxes |
Fastening boxes |
Visually |
After installing the boxes |
Density of fit of window and door sashes |
Visually |
After installing the boxes |
Waterproofing of junction points between blocks and masonry |
Visually |
After installation |
Caulking with heat-insulating material with sealing compound. Coating with a solution of the joints of blocks with masonry |
Visually |
After installing the box |
The gap between the floor surface and the door leaf |
With a steel meter |
After installing the box |
Installation of window sill boards |
The presence of teardrops in wooden window sill boards |
Visually |
Before installing the window sill boards |
Antiseptic and insulation of the bottom board of the surface of wooden window sills |
Visually |
Before installing the window sill boards |
The slope of the sill board |
With a rail, level, steel meter |
After installing the window sill boards |
Platband wall overlap |
With the help of the steel subway |