Arrangement and requirements of steel structure bolts

Steel structure is connected by bolts, welding and riveting, among which bolt connection is one of the common connection methods. The connection of steel structure is an important factor related to the stability of steel structure. Therefore, special attention must be paid to the layout and construction requirements when the steel structure is bolted to the structure.

Therefore, in the construction process, which layout is more appropriate should be determined clearly and accurately. In any case, the middle distance, end distance and edge distance of bolts on members shall also meet the following requirements:

1. The stress requires that the bolt spacing should not be too small, otherwise the cross-section of the component will be weakened too much. When the steel structural members in Chengdu are under compression, the middle distance in the direction of pressure should not be too large, otherwise it is easy to produce bulge in the connecting plate. In order to prevent the steel plate at the end of the component from being cut, the outer row of bolts in the direction of internal force should have enough end distance.

2. Construction requires that the distance between bolts should not be too large, otherwise the steel plate can not be closely matched. The middle distance, edge distance and end distance of the outer row bolts should not be too large, otherwise the contact surface is not tight enough and the water intrusion will cause corrosion.

3. The construction requires that there should be enough distance between the bolts of steel structure, so as to turn the wrench to tighten the nut.

The connection method of steel structure building seems simple, but its practical application is very important. Every detail in the process of steel structure engineering can ensure the quality and stability of steel structure. The so-called details determine success or failure. Only the details can complete the work. Qualified steel structure.

The bolt arrangement on the component should be simple and uniform, generally in parallel and staggered. The juxtaposition is relatively simple and neat, and the size of the connecting plate is small. However, due to the existence of bolt holes, the cross-section of the component is weakened greatly. Offset can reduce the cross-section weakening, but the layout is more complex and the size of connecting plate is larger.

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