Quality Judgment Method of Steel Structure space frame

• Posted by Wendy Cai January 29, 2023 Filed in Business #  #steel structure space frame  80 views
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  The steel structure space frame is the key structure composed of steel materials, and it is one of the key building structure types. The space frame factory emphasizes that the structure is mainly composed of steel columns, steel beams, steel pipe trusses and other components made of steel and cold-rolled steel plates. Welding, anchor bolts or riveting are generally used for each component or component. Because of its light net weight and simple construction, it is widely used in galvanized steel warehouse, glass dome building,hall roofing, prefab hangar, stadium steel structure design and other industries.

  1.Before the start of construction, the construction company shall carry out safety inspections on the product quality inspection reports, program planning text documents and pre-assembly records of the components, and follow-up visits to record the specifications and technical parameters of the components. When the bending and defects of steel structure engineering construction exceed the allowable error, they should be completely eliminated.

  2.After the steel frame is hoisted, plan for centerlines, elevations, etc. of the components and measure the specified measurement points to make accurate measurements and mark them well, and carry out pre-weld inspections on the quality of the hoisting welding. Xuzhou's network frame factory installed temporary support points and steel waves to make the portal steel frame stable during the construction process.

  Steel structure processing will be affected by various methods during use, so it is required that the steel should have good industrial equipment performance and manufacturing performance to ensure that the structure is trustworthy. But how do people who process raw materials for steel structures use them?

  1.Plastic deformation

  Plastic deformation of steel generally refers to the characteristics of significant plastic deformation and no cracking after the stress field exceeds the specified value of compromise. The key factors to fully consider the degree of plastic deformation of steel are compressive strength δ and cross-sectional shrinkage .

  2.Cold drawing performance

  The cold drawing performance of steel is to fully consider the resistance to cracking when the steel is bent and manufactured at room temperature and undergoes plastic deformation. The cold-drawing performance of steel must be tested by cold-drawing experiments to test the bending deformation performance of steel bearing a specified bending level.

  3.Compressive strength

  The compressive strength index of steel consists of the specified value of plasticity σe, the specified value of compressive strength σy, and the specified value of compressive strength σu. The design is based on the compressive strength of steel. High compressive strength can reduce the net weight of the structure itself and save steel, reducing the project budget.

  This is exactly the application performance that steel structure processing raw materials need to have. In order to ensure the quality of steel structure processing, the practicability of its raw materials must be paid attention to.