Four main points of steel structure installation

What are the four main points of steel structure installation? The editor of steel structure will share with you:

With the continuous progress of steel structure processing and installation technology, steel structure buildings have become a new type of material for factories and warehouses, but the production and installation of steel structures is very important , Steel structure has many years of construction experience, mainly engaged in the design, manufacture and construction of steel structure engineering.

1. Torque index: D is the nominal diameter of the high-strength bolt. M is the value of the applied torque, and P is the bolt preload. The high strength of class 10.9 must ensure that the average value of the chlorine moment K is 0.11 to 0.15. The error difference for them cannot exceed 0.01.

2. Friction index: F is the initial value of the specimen measured by the anti-slip test, and NF is the number of friction surfaces. However, F corresponds to the sum of the measured values u200bu200bof high-strength bolt connections.

3. The initial tightening torque is to reduce the influence on the firmness of the bolts. Secondary tightening can be used to reduce the mutual influence between them. The initial tightening is The first tightening of high-strength bolts. Its axial force should reach 60 to 80 percent of a hundred.

4. The final tightening torque is the final firm torque of the high-strength bolt. Because there are various prestress losses to be taken into account, the usually designed tensile force of the tensioning torque is larger than the theoretical calculation. Five to ten percent.

Steel Structure Co., Ltd. is a steel structure installation company integrating steel structure design, processing and construction. The main products are: steel structure workshop, steel structure canopy, steel structure corridor, steel structure elevator shaft, Main steel structure processing, steel structure engineering and other design, processing and installation one-stop service, professional construction design team. It owns 2 steel structure factories, 30,000 square meters production base, fully automatic production line, senior technical team, and tailor-made a complete set of steel structure solutions for customers. If you need to consult the price of steel structure installation, please call the 24-hour service line: . official website.

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