Types And Parameters Of Steel Structure Bolts

Steel structure bolt is a kind of high strength bolt. Steel structural bolts are also called high-strength bolts or high-strength bolt joints. It is a new form of connection developed since the 1950s. It is convenient to use steel structure bolts to connect the pair? Good strength performance? And it is detachable? This is a very promising connection method because it is resistant to fatigue and will not loosen under dynamic loads.

Steel structural bolts are high-strength bolts and standard components. Good fastening performance, used in steel structure and engineering to achieve fastening effect. In general steel structures, the required steel structure bolts are all above 8.8, with 10.9 and 12.9, all of which are high-strength steel structure bolts. Sometimes bolts on steel structures do not require plating. well enough.

When installing steel structure bolts, the torque wrench is to tighten the nuts, which makes the steel structure bolts have a very large pretension, which can be controlled. The nut and liner create the same amount of friction with the pre-engagement member. Under the action of the pretensioning force, a relatively large frictional force is produced along the surface of the connecting member, which is obviously as long as the sliding force is smaller than the frictional force. Force, enough fragments will not slide, this is the connection principle to realize the steel structure bolts.

Bolts used to connect steel structures are called high-strength bolts, including screws, washers and nuts. High-strength bolts are divided into torsional shear type and large hexagonal bolts. Finally, tighten the torsional shear type with a torque gun, and twist the large hex with a torque wrench. High-strength bolts used for steel structure connections should be tested by a third party before use.