Building construction quality acceptance and data organization?

Article 4.0.7 of the Unified Standard for Quality Acceptance of Construction of Building Projects GB 50300-2013 states that "before construction, the construction unit shall formulate a plan for the division of sub-projects and inspection lots, which shall be audited by the supervisory unit. For Appendix B and related professional acceptance specification does not cover the sub-projects and test batches, the construction unit can be organized by the construction unit supervision, construction and other units to determine the consultation." In response to the provisions of this article, can be by each professional and technical responsible person before the commencement of construction of the sub-projects and test batches of the division of the program to determine, submitted to the supervision of the approval.

Referring to the professional acceptance specification of the provisions of the test batch division method is as follows:

Foundation and foundation

"Building foundation construction quality acceptance specification" GB 50202-2002 does not specify the division of the test batch, according to the construction experience, foundations, foundations, foundation pit support, groundwater control and slopes, such as the general division of the sub-division for A test batch, if the amount of work is very large or construction organization design and special construction program requires segmented construction, can be divided in accordance with the construction section.

"Underground waterproofing quality acceptance specification" GB50208-2011, Article 3.0.13 of the sub-projects test batch and the number of samples are as follows:

The main structural waterproofing and detail construction waterproofing shall be divided into test batches according to the structural layer, deformation joints or watering zones and other sections of the construction;

Special construction method of waterproofing shall be divided into test batches according to the tunnel interval, deformation joints and other sections of the construction. Tunnel interval, deformation joints and other construction sections divided into test batches;

Drainage works and grouting works should be a test batch;

The number of sampling tests for each test batch: detail construction should be the full number of inspections, the other should be in line with the provisions of this specification.

Main structure

"Acceptance specification for the construction quality of concrete structure project" GB 50204-2002 does not specify the method of division of the test batch, according to the construction experience, the template, reinforcing steel, concrete, prestressed, cast-in-place structure and assembled structure of the test batch should be divided in accordance with the construction section, which reinforcing steel should be divided in accordance with the incoming plan of the test batch.

"Masonry structure engineering construction quality acceptance specification" GB 50203-2011 in Article 3.0.20 provides that the masonry structure engineering test batch shall be divided at the same time in accordance with the following provisions:

The type of material used and the same type of material with the same strength grade;

Not more than 250m?masonry;

Main structure masonry a floor (foundation masonry can be counted as one floor); infill wall masonry volume is small can be more than one floor combined.

Specification for Quality Acceptance of Construction of Steel Structure Project GB 50205-2001 stipulates as follows:

Single-floor steel structure erection project can be divided into one or several inspection batches according to deformation joints or spatial stiffness units, etc. The underground steel structure can be divided into one or several inspection batches according to different underground masonry. Underground steel structure can be divided into inspection lots according to different underground layers

Multi-storey and high-level steel structure installation works can be divided into one or several inspection lots according to floors or construction sections. Underground steel structure can be divided into inspection lots according to different underground floors

Steel mesh frame structural erection works can be divided into one or several inspection lots according to deformation joints, construction sections or spatial stiffness units.

The fabrication and installation of pressurized metal plates can be divided into one or several test batches according to the deformation joints, floors, construction sections or roofs, walls and floors. The test lot division of the rest of the sub-projects is consistent with the steel structure installation project, or reasonably adjusted according to the site conditions.

The Code for Quality Acceptance of Construction of Aluminum Alloy Structural Engineering GB 50576-2010 stipulates as follows:

Single-floor aluminum alloy installation project shall be divided into one or several inspection batches according to deformation joints or spatial stiffness units, etc. Multi-storey aluminum alloy structural installation project shall be divided into one or several inspection batches according to floors or construction sections.

Aluminum alloy space grid structure installation project shall be divided into one or several inspection batches according to deformation joints, construction section or space rigidity unit.

Fabrication and installation of aluminum alloy panels shall be divided into one or several inspection batches according to deformation joints, construction sections and axes.

Aluminum alloy curtain wall structure installation project should be divided into test batches according to the following provisions: the same design, materials, technology and construction conditions of the curtain wall project every 500 square meters ~ 1000 square meters for a test batch, less than 500 square meters should be divided into a test batch. Each test batch should not be less than once per 100 square meters of sampling, each should not be less than 10 square meters; the same unit of work of the discontinuous curtain wall project should be divided into separate test batches; heterogeneous or special requirements of the curtain wall test batch should be divided according to the structure of the curtain wall, process characteristics and the scale of the curtain wall project, by the supervisory unit (or the construction unit) and the construction unit to determine the consultation. The rest of the sub-projects of the test batch division and aluminum alloy structure installation project to maintain consistency, or according to the site conditions for reasonable adjustment.

"Steel pipe concrete project construction quality acceptance specification" GB 50628-2010 does not specify the rules for the division of the test batch, according to the construction experience, should refer to the acceptance specification of concrete and steel structure and the site construction section to develop the test batch division program.

Code for Quality Acceptance of Construction of Wooden Structures GB 50206-2012 stipulates as follows:

Quality control of materials and fittings should be one inspection lot for a square wood and log structure house; quality control of production and installation of fittings should be one inspection lot for a floor of the whole house or a floor between deformation joints.5.1.4 Quality control of materials and fittings Should be a glued wood structure of the house as a test batch; components production and installation quality control should be a whole house of a floor or a floor between the deformation joints as a test batch.

The quality control of light wood structure materials and fittings shall be based on the same construction project constructed at the same time for each building with a floor area of not more than 300 square meters and a total floor area of not more than 3,000 square meters as an inspection lot, and those with less than 3,000 square meters shall be regarded as an inspection lot, and the single building area of more than 300 square meters shall be regarded as an inspection lot; the quality control of the production and installation of light wood structure shall be based on the first floor of a house as an inspection lot; the production and installation of components shall be based on the whole house as a floor or a floor between the deformation joints. The first floor of a house shall be regarded as an inspection lot.

The inspection lot of wood structure protection project can be divided according to the inspection lot of square wood and log structure, glued wood structure or light wood structure corresponding to chapters 4 to 6 of this specification.

Building decoration:

"Building ground engineering construction quality acceptance specification" GB 50209-2010 in Article 3.0.21 of the building ground engineering construction quality inspection, shall comply with the following provisions:

Base level (each tectonic layer) and various types of surface layer of the construction quality acceptance of sub-construction works shall be divided into test batches according to the construction section of each level or layer (or deformation joints), high-rise building construction quality inspection shall be divided into test batches according to the corresponding chapters 4 to 6 of this specification. (or deformation joints) divided into test batches, high-rise buildings, the standard layer can be divided into test batches per three layers (less than three layers according to three layers);

Each test batch should be divided into sub-division of the grass-roots level (each structural layer) and various types of surfaces divided into sub-items of the project according to the natural room (or standard room) test, the number of spot-checks should be randomly inspected should be no less than 3; less than 3, the whole number of inspections should be carried out; corridors (aisles) should be 10 Extension of meters for 1, industrial plants (single-span), auditoriums, foyers should be two axes for 1 calculation;

Waterproofing requirements of the building floor sub-projects sub-projects quality of construction per test batch should be randomized according to the total number of its rooms should not be less than 4, less than 4, should be checked in full.

"Building Decoration and Decoration Engineering Construction Quality Acceptance Specification" GB 50210-2001 provides as follows:

Plastering project of each sub-item of the project should be divided into test batches in accordance with the following provisions:

The same materials, technology and construction of outdoor plastering project every 500 square meters ~ 1000 square meters should be divided into a test batch, less than 500 square meters should be divided into a test batch. For a test batch. The same materials, technology and construction of indoor plastering project every 50 natural rooms (large rooms and corridors according to the plastering area of 30 for a) shall be divided into a test batch, less than 50 shall also be divided into a test batch.

Doors and windows of the project should be divided into the following provisions of the test batch of sub-projects: the same species, types and specifications of wooden doors and windows, metal doors and windows, plastic doors and windows and windows and doors and windows should be divided into a test batch of 100, less than 100 should be divided into a test batch. The same species, types and specifications of special doors every 50 should be divided into an inspection lot, less than 50 should be divided into an inspection lot.

Ceiling project of each sub-project inspection batch should be divided in accordance with the following provisions: the same variety of ceiling project for each 50 (large rooms and corridors according to the ceiling area of 30 less than 50 should also be divided into an inspection batch. 7.1.5 Lightweight partition wall project should be divided in accordance with the following provisions of the inspection batch of each sub-project: the same variety of lightweight partition wall project for each 50 (large rooms and corridors according to the wall surface of 30% of the lightweight partition wall. Light partition wall wall 30 a test batch, less than 50 should also be divided into a test batch.

Decorative panels (bricks) project of the sub-projects should be divided into test batches according to the following provisions: the same materials, processes and construction conditions of indoor decorative panels (bricks) project every 50 (large rooms and corridors according to the construction of an area of 30 for a) should be divided into a test batch, less than 50 should also be divided into a test batch. The same materials, technology and construction conditions of outdoor veneer (brick) project every 500 square meters ~ 100 square meters should be divided into a test batch, less than 500 square meters should also be divided into a test batch.

The curtain wall project should be divided into the following provisions of the test batch of sub-projects: the same design, materials, technology and construction conditions of the curtain wall project every 500 square meters ~ 1000 square meters should be divided into a test batch, less than 500 square meters should also be divided into a test batch. Discontinuous curtain wall project of the same unit of work should be divided into separate test batches. For shaped or special requirements of the curtain wall, the division of the test batch should be based on the structure of the curtain wall, process characteristics and the scale of the curtain wall project, by the supervision unit (or construction unit) and the construction unit to determine the consultation.

The test batch of each sub-project of finishing works shall be divided according to the following provisions: outdoor finishing works for each building of the same kind of paint coating the wall every 500 square meters ~ 1000 square meters shall be divided into a test batch, less than 500 square meters shall also be divided into a test batch. Indoor finishing works of similar paint finishing walls every 50 (large rooms and corridors according to the finishing area of 30 for an inspection batch, less than 50 should also be divided into an inspection batch.

Laminating or soft packages of the project should be divided into the following provisions of the test batch: the same species of laminating or soft packages of each 50 (large rooms and corridors according to the construction area of 30 square meters for a room) should be divided into a test batch, less than 50 should also be divided into a test batch.

The details of the project should be divided into the following provisions of the test batch of sub-projects: similar products every 50 (at) should be divided into a test batch, less than 50 (at) should also be divided into a test batch. Each staircase should be divided into an inspection lot.

Roofing:

"Roofing Engineering Quality Acceptance Code" GB 50207-2012 in Article 3.0.14 provides that the roofing project sub-projects should be divided into a test batch according to the roof area of every 500 square meters ~ 1000 square meters, less than 500 square meters should be divided into a test batch; the number of sampling of each test batch should be in accordance with the specification of the provisions of the chapter 4 ~ 8 implementation. According to construction experience, different elevations of the roof should be divided into different test batch for acceptance.

Capacity of the test batch test batch division is completed after the need to determine the capacity of the test batch, the capacity of the test batch is composed of numerical values and units, according to the construction habits, the general capacity of the test batch to fill in the following ways:

The capacity of the test batch of the current construction section of the main amount of work, the specific performance of the test batch capacity of the concrete casting is "m? ", reinforcing steel installation when the test batch capacity is "t".

Test batch capacity for the construction of the current construction section of the construction scope, can be understood as the current construction section of the horizontal projection area, the specific performance is, concrete pouring, steel reinforcement installation and template installation when the test batch is "m?

Test batch capacity for the current construction of the number of components, specific performance, concrete pouring frame column test batch capacity for "root", doors and windows installed test batch capacity for "g".

Minimum sampling number of minimum sampling number of determination and fill in the requirements are divided into the following seven cases, "steel structure construction quality acceptance specification" GB50205-2001 as an example.

Full check, as follows:

Steel, steel castings of varieties, specifications, performance, etc. should be consistent with the current national product standards and design requirements. The quality of imported steel products should meet the requirements of the design and contractual standards.

Inspection number: full inspection.

Inspection method: check the quality certification documents, Chinese signs and inspection reports.

The items that need to be described by test reports and material certificates, concealed acceptance records, construction records and test records, etc., are as follows:

The steel belonging to one of the following cases should be sampled for re-inspection, and the results of the re-inspection should be in line with the current national product standards and design requirements. Foreign imports of steel; steel mixed batch; plate thickness equal to or greater than 40mm, and the design of the Z direction performance requirements of the thick plate; building structural safety level for the first class, large span steel structure in the main force members used in the steel; design of the steel with the requirements of the re-inspection; the quality of the steel in doubt.

Number of inspections: full inspection.

Inspection method: check the re-inspection report.

Fixed number or percentage sampling, as follows:

The thickness of the steel plate and the permissible deviation should be in accordance with the requirements of its product standards.

The number of inspections: each variety and specification of steel plate sampling 5 places.

Inspection method: measuring with vernier calipers.

Data full check, fixed number of samples, as follows:

T-shaped joints, cross joints, corner joints and other requirements for penetration of the butt joints and butt joints combination of the angle, the foot size should not be less than t/4; design fatigue calculation requirements of the crane beam or similar components of the web and the upper edge of the web connection welds of the foot size of the t/2 and should not be greater than 10mm. The allowable deviation of the weld foot size is 0mm ~ 4mm.

Check the number of: information on the full number of checks; 10% of the same type of weld spot check, and should not be less than 3.

Inspection method: observation and inspection, random measurement with weld gauge.

There are two limited methods of constant sampling, as follows:

The model, name, color and expiration date of the anticorrosive coating and fireproofing coating should be consistent with its quality documents. After opening, there should be no crusting, lumping, gel and other phenomena.

Inspection quantity: 5% by barrels, and should not be less than 3 barrels.

Inspection method: observation and inspection.

Multiple qualifying methods of sampling, the same test items within a variety of components, as follows:

Second level, third level of weld appearance quality standards should be in accordance with the provisions of this specification in Appendix A, Table A.0.1. Tertiary butt welds shall be in accordance with the secondary weld standards for appearance quality inspection. Inspection Quantity: 10% of each batch of similar components sampling, and should not be less than 3 pieces; sampling components, each type of weld according to the number of 5% sampling, and should not be less than 1; each check 1, the total number of sampling should not be less than 10 places. Inspection method: observation and inspection or use a magnifying glass, weld gauge and steel ruler inspection.

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