What are the contents and standards of household acceptance of construction projects?

Household acceptance, that is, "one household for one inspection", refers to the special acceptance of the public parts of each household and unit project in accordance with the relevant national standards and norms when the residential building project is completed and accepted, and the project quality completion acceptance record is issued after the household acceptance is qualified.

So what are the acceptance conditions for household acceptance? What projects do you accept? What are the inspection methods and acceptance criteria? This paper expounds the contents and norms of household acceptance of residential engineering quality from indoor and public parts for your reference.

First, the household acceptance conditions

1, the project has completed the design and the workload agreed in the contract.

2, including division (a branch) engineering quality acceptance.

3, the project quality control information is complete.

4. The results of spot check of main functional items meet the requirements.

5. Safety and function test data should be complete.

Second, the preparatory work before household acceptance

1, the construction unit is responsible for the establishment of household acceptance team, organize the formulation of household acceptance plan, and make technical disclosure.

2, equipped with household inspection required testing instruments and tools, and the metrological verification.

3, do a good job in the roof, bathroom, window and other waterproof parts of the water storage (spray water) test preparation.

4. Mark the control points and lines for measuring the direction and space size of various buried pipelines on the indoor ground; The electrical lines in the distribution control box should be clearly marked, and the direction of buried pipelines should be accompanied by drawings.

5. Determine the inspection unit.

6. The protruding part of the external wall of the building is inlaid with engineering nameplates.

Third, household acceptance participants

1, the inspection personnel of the construction unit shall be the project leader and professional technicians of engineering construction;

2, the construction unit inspection personnel should have the professional qualifications such as construction engineer (project manager), quality inspector, construction engineer;

3. The inspector of the supervision unit shall be composed of the chief supervision engineer, supervision engineer and supervisors of related disciplines.

Four, the provisions of the household acceptance

1, the inspection items shall comply with the provisions of this regulation.

2. More than 90% inspection points in each inspection unit are within the allowable deviation, and the maximum deviation should be within 1.2 times of the allowable deviation.

3, household acceptance record is complete.

Five, household acceptance should form the data.

1. During the acceptance process, the Record Form of Household Acceptance of Residential Engineering Quality shall be filled in according to Appendix A. ..

2. After household acceptance, the Summary Table of Household Acceptance of Residential Engineering Quality shall be filled in according to Appendix B. ..

Household acceptance data should be sorted and grouped separately and filed together with construction technical data.

Six, the contents and standards of household acceptance

Indoor part

1. Acceptance items: floor, wall and ceiling.

Acceptance content: (1) hollow floor, cracks and sand; (2) Cracks, delamination and ash explosion occur in walls and ceilings.

Inspection method: tap with a small hammer and observe the inspection. The distance between click points within the clickable range shall not exceed 40 cm.

Acceptance criteria: The floor hollowing area shall not exceed 400cm2, and cracks and sand shall not appear. The walls and ceilings are free from hollowing and delamination; 1M away from the inspection surface, without cracks and ash explosion.

Reference standards: GB50209-2002-5.3.4 and 5.3.6; GB 502 10-200 1 . 4 . 3 . 5; GB50204-2002.8.2. 1 .

2. Acceptance items: installation of doors and windows

(1) Acceptance content: window sill height

Inspection method: steel rule inspection, not less than one windowsill.

Acceptance criteria: the height of protective railing of window sill or floor-to-ceiling window shall not be less than 900mm, and there shall be no negative deviation.

Reference standard: GB 50352-2005.6.10.3; +00.3; Gb50096-1999.3.9.1acceptance item: installation of doors and windows.

(2) Acceptance content: leakage of external window

Inspection method: rain test or visual inspection after rain.

Acceptance criteria: there is no leakage around the external window.

Reference standard: Article 60 of the Building Law.

(3) Acceptance content: doors and windows are open.

Inspection method: open and close inspection, manual inspection.

Acceptance criteria: flexible opening and tight closing; Home doors, etc. There is no looseness or shaking.

Reference standard: GB 50210-2001.5.3.4; GB 502 10-200 1 . 5 . 1 . 1 1 .

(4) Acceptance content: safety glass certification mark

Inspection method: Observe and inspect the safety certification mark.

Acceptance criteria: safety glass should be used, but non-safety glass should not be used, and the glass has safety certification mark. Cutting and marking shall not be hidden.

Reference standard: Article 6 of Development and Reform Operation (2003) No.2116.

3. Acceptance items: railing installation

(1) Acceptance contents: railing height and vertical pole spacing.

Inspection method: steel rule inspection, each railing is not less than one place.

Acceptance criteria: the clear height of low-rise and multi-storey buildings should not be less than 1.05m, and the clear height of middle and high-rise buildings should not be less than 1. 10m, with no negative deviation.

Reference standard: GB 50210-2001-12.5.6, 12.5.9.

(2) Acceptance content: anti-climbing measures

Inspection method: observation and inspection.

Acceptance criteria: railings or fancy railings with horizontal members should be reinforced by climbing measures (metal mesh, safety glass, etc.). ).

Reference standard: GB50352-2005-6.6.3.

(3) Acceptance content: guardrail glass

Inspection method: Observe and inspect 3C safety sign and vernier caliper measurement.

Acceptance criteria: Hard glass or hard laminated glass must be used, and the thickness shall not be less than12 mm. When the airport height exceeds 5m, hard laminated glass must be used.

Reference standard: GB 50210-2001-12.5.7.

4. Acceptance Project: Waterproof Project

(1) Acceptance content: roof leakage

Inspection method: the flat roof shall be stored in blocks for not less than 24 hours, the storage depth of gutter and pipeline root shall be not less than 20mm, and the water spraying test of sloping roof shall be not less than 2 hours.

Acceptance criteria: there is no leakage or water accumulation on the roof.

Reference standard: GB50207-2002- 10.0.5.

(2) Acceptance content: ground leakage with waterproof requirements such as toilets.

Inspection method: release water after 24 hours of water storage, and the minimum water storage depth shall not be less than 20 mm

Acceptance criteria: no leakage and smooth drainage.

Reference standard: GB50209-2002-4.9.8 Acceptance item: waterproof project.

(3) Acceptance content: External wall leakage

Inspection method: the external window should be inspected after one hour of artificial water spraying test.

Acceptance criteria: there is no leakage on the wall, and there is no stagnant water crawling in drip line.

Reference standard: Article 60 of the Building Law.

5. Acceptance items: indoor space size

(1) Acceptance content: indoor clear height

Inspection method: the clear height of each room is measured at five o'clock. The deviation is the difference between the measured value and the calculated value; The range is the difference between the maximum value and the minimum value in the measured value. Use laser rangefinder or steel tape to detect.

Acceptance criteria: the maximum negative deviation shall not exceed 20mm, and the range shall not exceed 20mm.

Reference standard: DGJ32/J 16-2005-6.3.2 Acceptance item: indoor space size.

(2) Acceptance content: indoor clean room

Inspection method: the width and depth dimensions of each room are sampled at two places respectively. The deviation is the difference between the measured value and the calculated value; The range is the difference between the maximum value and the minimum value in the measured value. Use laser rangefinder or steel tape to detect.

Acceptance criteria: the range is not more than 20mm and not more than 0.5% of the vertical length.

Reference standard: DGJ32/J 16-2005-6.3.2.

(3) Acceptance content: component size

Inspection method: use laser rangefinder or steel tape to measure, and the deviation is the difference between the measured value and the calculated value; The range is the difference between the maximum value and the minimum value in the measured value.

Acceptance criteria: indoor beams, window sills and other components should not have obvious large and small head phenomenon.

6. Acceptance items: external wall insulation

(1) Acceptance content: design practice

Inspection method: check against drawings.

Acceptance criteria: Design practice must pass the drawing review.

(2) Acceptance content: insulation layer thickness

Inspection method: measure and inspect with steel tape measure.

Acceptance criteria: the thickness of insulation layer must meet the requirements of drawings.

(3) Details processing

Inspection method: observation and inspection.

Acceptance criteria: thermal insulation treatment must be done around the convex window.

7. Acceptance items: pipeline installation

(1) Acceptance content: pipeline leakage

Test method: water test.

Acceptance criteria: there is no leakage in the water supply, drainage, heating pipes, radiators, sanitary appliances, valves, heat meters, water meters and other interfaces. Reference standards: gb50242-2002-4.2.2, 5.2. 1.

(2) Acceptance content: pipeline slope direction

Test method: water test.

Acceptance criteria: water supply, drainage and heating pipes are not blocked.

Reference standard: GB50242-2002.5.2.3.

(3) Acceptance content: pipeline slope

Inspection method: observation and inspection.

Acceptance criteria: the slope direction and gradient of the drainage pipeline are correct.

(4) Acceptance content: fixed installation.

Inspection method: observation and inspection.

Acceptance criteria: water supply, drainage, heating pipes, radiators, sanitary appliances, valves, heat meters, water meters, etc. Installation and fixation are firm, and the bracket spacing position meets the requirements.

Reference standard: GB50242-2002.

(5) Acceptance contents: floor drain and water seal

Inspection method: straightedge inspection.

Acceptance criteria: the depth of water seal of floor drain shall not be less than 50 mm

Reference standard: GB50242-2002.

(6) Acceptance contents: heat meter and temperature control valve.

Inspection method: observation and inspection.

Acceptance criteria: install heat meters for household equipment, or install heat distribution meters for each group of radiators, and install temperature control valves for each group of radiators.

Reference standard: GB50242-2002.

8. Acceptance items: electrical engineering installation

(1) Acceptance content: socket phase and grounding.

Inspection method: use "phase detector for leakage protection" to inspect one by one.

Acceptance criteria: "Leakage protection phase detector" has no error display.

Reference standard: GB 50303-2002-6.1.9,6.2.8.

(2) Acceptance content: indoor distribution box (panel)

Inspection method: Observe and switch the electric shock protector.

Acceptance criteria: the wiring in the lighting distribution box (panel) is neat, the loop number is complete, the standard wiring is neat, the loop number is complete, and the identification is correct; The switch in the box (panel) is flexible and reliable.

Reference standard: GB 50303-2002-6.1.9,6.2.8.

(3) Acceptance content: power-on inspection

Inspection method: power-on inspection.

Acceptance criteria: the lighting system is electrified and operates normally.

Reference standard: GB50303-2002.

(4) Equipotential

Inspection method: observation and inspection.

Acceptance criteria: the equipotential connection end is complete and the position is correct.

9. Acceptance items: others

(1) Acceptance content: flue setting and accessories.

Inspection method: observation and inspection.

Acceptance criteria: install check valves and fire doors as required; No cracks on the surface; The height of the master room flue (including the ventilation hole of the pipeline) shall exceed1.8m.

(2) Acceptance content: wall-mounted air conditioner

Inspection method: observation and inspection.

Acceptance criteria: no leakage, reverse slope, correct position and coordination with socket position.

Public * * * section

1. Acceptance items: external wall and apron slope

Acceptance contents: oblique cracks in window corners and cracks in wall surfaces.

Inspection method: Look up or down within two meters of the external wall.

Acceptance criteria: there is no visible crack on the wall and window corner; The apron slope has no fracture and uneven settlement, and should be disconnected from buildings and roads, and be waterproof accordingly.

Reference standard: Article 60 of the Building Law.

2. Acceptance items: stairway access.

(1) Acceptance contents: elevator hall depth and elevator door width.

Inspection method: steel rule or laser range finder inspection.

Acceptance criteria: 1, and the depth of elevator hall shall not be less than1.5m; ; 2, the elevator door width shall not be less than 80cm.

Reference standard: GB 50096-1999-4.1.9 JGJ 50-2001-7.4.1Acceptance item: stair passage.

(2) Acceptance content: width of evacuation doors and passages on the first floor of high-rise buildings.

Inspection method: steel rule or laser range finder inspection.

Acceptance criteria: the evacuation doors should be opened outwards, with a clear width of not less than 1. 1m and a passage width of not less than1.2m..

Reference standard: GB50045-95-6. 1.9 acceptance item: stair passage.

(3) Acceptance content: clear height of public walkways.

Inspection method: steel ruler or laser rangefinder for measurement, observation and inspection.

Acceptance criteria: the clear height of normal activities of people such as walkways shall not be less than 2.0m

Reference standard: GB50368-2005-5.4.2 Acceptance item: basement.

(4) Acceptance content: clear height of channel

Inspection method: steel rule or laser range finder inspection.

Acceptance criteria: the clear height of the passage shall not be less than 2.0m

Reference standard: GB50368-2005-5.4.2.

3. Acceptance items: basement

(1) Acceptance contents: leakage and cracks on the ground and ceiling.

Inspection method: observation and inspection.

Acceptance criteria: no leakage and no cracks.

Reference standard: GB50208-2002-4. 1.9.

(2) Acceptance contents: ground fissures and sand.

Inspection method: observation and inspection.

Acceptance criteria: no cracks and sand.

Reference standard: GB50209-2002-5.3.6.

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