Characteristics of Chengdu steel structure application process

Category： Industry News

Time：2020-07-06

Chengdu steel structure usually in the temperature of 450 ~ 650 °C will lose the bearing capacity, large deformation, resulting in steel columns, steel beams bending, as a result of excessive deformation can not continue to use, generally unprotected Chengdu steel structure fire resistance limit of about 15 minutes. The length of this time is also related to the speed at which the component absorbs heat. High-rise steel structure buildings are increasing, especially some super high-rise buildings, and the use of steel structure materials is more extensive. Once a fire accident occurs in a high-rise building, the fire can not be extinguished in a short time, which requires us to increase the fire protection of building materials in the design of the building to enhance its fire resistance limit, and develop the necessary emergency plan inside the building to reduce casualties and property losses. , easy to master the steel structure floor amount estimation skills, for you to save money and save money, steel structure in the floor structure and the amount of steel resistance structure between the steel structure has a certain proportional relationship, through the steel structure design experts years of practice statistical summary, in the structural scheme stage: 1. Estimation of the amount of steel used in the non-seismic structure: a. The amount of steel used in the floor structure is not greatly affected by the height of the house, generally 33kg/m²; b. The amount of steel used in the load-bearing column is proportional to the height of the house; 2. The amount of steel used in seismic structures is generally 1.5-2 times that of non-seismic structures (need to be based on fortification intensity and structural form); , as the steel structure is more and more widely used, the floor surface of the secondary transformation and steel structure is increasing, master the simple estimation method to calculate the preliminary cost, and support a scale in your heart.

Keywords： Characteristics of Chengdu steel structure application process

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