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In the process of steel structure engineering design, the selection of reasonable steel has a very critical role. It can be said that the task of steel selection is both important and difficult. There are many kinds of steel in China, and it is difficult to choose the most suitable steel for steel structure construction from many steels, and the current steel structure engineering construction design for steel requirements are also high, different steel structure engineering requirements for steel structure strength, deformation and fatigue stress are also different, so there is a certain degree of difficulty in the selection. Therefore, in the design, in order to better play the role of the steel structure, must start from the actual, combined with the specific construction requirements of the scientific selection of steel. In the selection of steel, it is also necessary to scientifically judge its applicability. At present, the span of the building steel structure and the load are relatively large, mainly used in the more complex high-rise steel structure project or large steel structure project. Therefore, the steel must meet the construction needs of the steel structure, be able to withstand high temperatures and vibrations, and be easy to disassemble. This requires the designer to investigate and study before design, and comprehensive analysis, fully consider the suitability of the steel structure, before the design work can be carried out.

The bolt holes of the connecting parts shall be processed according to the relevant regulations. The accuracy of the bolt holes, the surface roughness of the hole wall, the allowable deviation of the hole diameter and the hole distance, etc. shall comply with the current national standard "Code for Construction Quality Acceptance of Steel Structure Engineering" GB50205. Regulation.

Steel structure has been more popular among people, but because the steel structure corrosion problem has been a problem in the industry, the material itself is poor corrosion resistance, heat resistance is not fire-resistant shortcomings, if the project application can not properly handle the steel structure corrosion and fire protection problems, will directly affect the safety and durability of the project. As the steel surface cladding after the steel structure corrosion and fire protection issues.

The main measures to improve the design of steel structures and the main points of installation technology

It is often heard that purlins, C-shaped steel, Z-shaped steel, and CZ-shaped steel are mentioned. In fact, they include C-shaped steel and Z-shaped steel, but both C-shaped steel and Z-shaped steel perform better than traditional steel products in practical applications.

Compared with the traditional plant, the new steel structure plant is increasingly used, why abandon the traditional plant and enable the new steel structure plant? Steel layout plant and what advantages?