The construction of steel structure is dominated by stainless steel plate, which is one of the key building structure types. The famous Eiffel Tower in Paris and the bird's nest in Beijing are steel structure projects. In China, the management and control of steel structure construction has been very strict. After the code for acceptance of construction quality of steel structures was approved as a national industrial standard, the original gb50205-95 code for acceptance of construction quality of steel structures and gb50221-95 standard for inspection and evaluation of quality of steel structures were abolished. Today, I will take you to learn and train what should be paid attention to in the new national industrial standards.

How to distinguish construction quality and acceptance of steel structure engineering?

The acceptance of steel structure engineering construction is basically based on the self inspection of the construction enterprise, according to the project acceptance data, five sub projects, and each sub project or sub project_ When the steel structure is independent of the bulk structure of the engineering building, it belongs to the subdivisional project; When the main project! In addition, when the concrete structure_ Structure, masonry structure, etc., Steel frame structure belongs to sub divisional works; For the construction of the herringbone steel structure project, it can also be divided into several sub divisional projects according to the bending stiffness module of the indoor space. Each branch or sub branch project consists of several branch projects; The branch project is composed of several project acceptance data. Steel frame structure connection, standard part connection, production and processing of steel parts and steel members, steel prefabricated member assembly, steel prefabricated member assembly, single-sided steel structure engineering, steel frame structure attack of double-layer and high-rise residential buildings, spherical grid structure installation, profiled plate metal sheet, and steel frame structure spraying.

How to distinguish the acceptance data of steel structure divisional works?

The acceptance data of the branch works of the steel frame structure are divided according to the standards: (1) the single-sided steel frame structure is divided according to the building deformation joint; (2) Steel frame structures of double-layer and high-rise residential buildings are divided according to buildings or construction sections; (3) Profiled sheet metal works can be divided according to flat roof, plate wall and floor slab; (4) Raw materials and finished products do not belong to branch projects, but can be combined or dissolved according to the project grade and specific feeding conditions.

Problems that should be paid attention to when implementing the quality inspection and evaluation standard of steel structure engineering.

Division of new steel structure engineering construction projects a prominent feature of this specification is that new steel structure engineering construction projects are divided into equipment installation projects and manufacturing projects, and steel structure engineering projects are required to be divided into subdivisional projects, branches and single projects; The steel structure manufacturing project is divided into sub projects, branches and new manufacturing projects. Therefore, the program of testing and identification is a sub project, then a branch, and Z is ultimately a single project. According to the relevant requirements of the main statistical indicators of the construction industry published by the China Bureau of statistics.

What are the key points of acceptance of each divisional project of steel structure?

According to the requirements of the current standard unified standard for acceptance of construction quality of construction engineering gb50300, steel frame structures, as one of the main works, shall be accepted as sub divisional works; When the main works are all steel frame structures, they shall be accepted as sub divisional works. The large and medium-sized insight structure can be divided into several sub divisional works for project acceptance. See Appendix g of this standard for new items of inspection and verification of related safety functions of steel frame structure subdivisional works. Inspection shall be carried out after the subdivisional works meet the acceptance standards. The quality inspection of perceptual products related to sub divisional works of steel frame structure shall be carried out in accordance with Annex h of this standard.