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Acceptance standard for construction quality of steel structure engineering GB 50205-2020 pdf

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Brief introduction: The GB 50205-2020 steel structure engineering construction quality acceptance standard was issued on January 16, 2020 and implemented on August 1, 2020. The original GB 50205-2001 steel structure engineering construction quality acceptance standard is abolished at the same time.
According to the requirements of "Notice of Guan Qian printing and distributing (2010 project construction standards and specifications formulation and revision plan" (Jian BIA [2010] No. 43) issued by the Ministry of housing and urban rural development, the standard preparation group revised this standard after extensive investigation and research, conscientiously summarized practical experience, referred to relevant international standards and foreign advanced standards, and on the basis of extensive soliciting opinions.
The main technical contents of this standard are: General principles, terms and symbols, basic provisions, acceptance of raw materials and finished products, welding engineering, fastener connection engineering, steel parts and steel parts processing, steel component assembly engineering, steel member pre assembly engineering, single layer and multi-storey steel structure installation engineering, space structure installation engineering, profiled metal sheet engineering, Painting engineering and steel structure parts completion acceptance.
The main technical contents of this revision are as follows:
1. Adjust the arrangement of chapters;
2. The single-layer steel structure installation engineering and the multi-storey and high-rise steel structure installation engineering are merged into the single-layer multi-storey steel structure installation engineering;
3. The steel grid structure installation project is adjusted to the space structure installation project, and the steel pipe cabinet frame structure content is added;
4. The project content of prestressed steel cable and membrane structure is added;
5. The witness inspection method for steel structure steel entering the site for acceptance is added;
6. The contents and methods of wind pressure resistance and air suction performance test of fabricated metal roof system are added, and the safety performance of steel structure metal roof system is tested and accepted;
7. The content and method of coating process evaluation for paint are added to strengthen the control and acceptance of steel structure coating construction quality;
8. The basic principles and methods of steel structure engineering measurement are added, and the contents of steel structure engineering completion acceptance are improved;
9. When the steel is put into the processing site, the steel plate, section steel, steel casting, steel bar and steel cable shall be inspected and accepted respectively, and the membrane structure materials shall be included in the site acceptance;
10. Change the form of relevant allowable deviation items into the provisions;
11. The minimum radius of curvature of cold forming and hot forming and the processing of cast steel joints have been improved in the sub project of steel parts and steel parts processing;
12. In the steel component assembly sub project, the component splicing and other contents are added and improved, and the factory assembly link is included in the quality control and acceptance;
13. The steel plate shear wall is added in the order of foundation, column, beam, cabinet frame, node and support;
14. The node structure and roof system of profiled metal sheet are improved;
15. The steel surface treatment and coating process evaluation contents are strengthened in the coating sub section of steel structure;
16. In the final acceptance of steel structure division D project, the inspection and witness inspection items related to safety order and function are modified, and the most measurement principle and method of steel structure engineering are added.
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Standard for acceptance of construction quality of steel structures (GB 50205-2020)
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