In order to comprehensively promote the all-round improvement of the quality management system of construction projects in Shanghai, the General Station of Safety and Quality Supervision of Construction Projects in Shanghai has issued the Notice of "Key Points of Quality Improvement of Construction Projects in 2023" in combination with the "frequently-occurring diseases" and "common diseases" related to the safety of engineering structures and the quality affecting the use performance reflected centrally in Shanghai.
The article clearly requires that all parties involved in the construction site should incorporate the key points of renovation into daily management as the key points of quality problem prevention and hidden danger investigation. All construction enterprises and supervision enterprises shall formulate special measures according to the actual situation of the construction project, and organize and implement the key contents of the renovation. According to the actual situation of each district, each supervisory organ may formulate the key points of regional renovation on the basis of this circular, and implement key supervision and investigation in daily supervision and various supervision and inspection activities, focusing on improving the means of quality system management and enhancing the intensity of investigation and punishment.
The focus is on four parts: the first is the anti-leakage of residential engineering; the second is the anti-falling of the facade of the silicon graphene system; the third is the rectification of the detection behavior of the detection agency; and the fourth is the quality rectification of the pre-accompanied concrete. There are two major aspects involved in the prefabricated concrete building:
the first is to rectify the construction quality of the waterproof structure of prefabricated components. The inspection shall be carried out
according to the relevant standards, regulations and rules. The inspection method is the joint between the prefabricated external wall and the cast-in-place component, focusing on the setting of the rough surface of the prefabricated component; the joint between the prefabricated external wall and the prefabricated external wall, focusing on the construction quality of the weather-resistant sealant and the setting of the aqueduct; The prefabricated air conditioning board shall focus on the setting of the drainage slope in the board and the construction of the waterproof node according to the drawing; check the site drenching test report. The disposal requirements are as follows: (1) For projects with poor construction quality of waterproof nodes and easy to cause seepage hazards, a rectification order shall be issued and rectification shall be ordered within a time limit. (2) If the waterproof node method is inconsistent with the design or construction scheme, a construction suspension order shall be issued, and you shall be ordered to stop work for rectification. The general contractor shall be fined less than 2% -4% of the project contract price, the person in charge directly responsible for the unit and other persons directly responsible for the unit shall be fined more than 5% and less than 10% of the unit's fine, and the project manager of the construction unit shall be scored for violations of laws and regulations.
The second is to rectify the leakage of external windows. The inspection shall be carried out
in accordance with relevant standards, regulations and rules. The inspection method is to check the filling of the gap between the outer window frame and the wall and the construction quality of the sealant; to check the sealing of the window frame and the window sash and the rubber strip around the glass; to check the performance test report of the outer window. In the acceptance stage, the site shall carry out the water spray test of the external windows according to the regulations to verify the waterproof performance of the external windows of the building. The disposal requirements are as follows: (1) For projects with quality problems in external window profiles and sealant strips, or with quality problems in gap filling and sealant construction, which may cause seepage hazards, a rectification order shall be issued and rectification shall be ordered within a time limit. (2) For projects that have not been re-inspected for the performance indicators of building exterior windows, a construction suspension order shall be issued and the work shall be ordered to stop for rectification. The general contractor and the supervision unit shall be fined more than 5000 yuan and less than 50000 yuan respectively. The project manager of the construction unit shall be scored for violations of laws and regulations.
Appendix 1 Key Points
for Quality Improvement of Construction Projects in
2023 I. Leakage prevention
of residential engineering 1. Rectify the construction quality
of waterproof structure of prefabricated components 2. Rectify the leakage
of external windows 3. Rectify the leakage
of split screw holes of cast-in-place concrete external walls 4. Rectify the construction quality of roof waterproof rolls 0 HT ML0 UNK1 4 II. Silicon-graphene system facade anti-falling 0 HTML0 UNK1 51. Rectification of Silicon-graphene insulation board plastering layer construction quality problem 0 HTML0 UNK1 62. Rectification of Silicon-graphene system supporting material quality problem 0 HTML0 UNK1 7 III. Rectification of testing behavior of testing institutions 0 HTML 0 UNK1 81. Rectification of fraud in laboratories of testing institutions 0 HTML 0 UNK1 92. Rectification of testing behavior of bearing capacity of foundation piles and integrity of pile body 0 HTML 0 UNK2 0 IV. Rectification of quality of ready-mixed concrete 0 HTML 0 UNK2 11. Rectification of falsification of concrete strength test blocks at construction site & nbsp; 0 HTML 0 UNK2 2. Rectification of concrete pouring at construction site 0 HTML 0 UNK2 3.
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