A bolt connection point stress optimization analysis method
An analysis method and connection point technology, applied in the field of electric power, can solve problems such as insufficient research on bolted connection points of transmission towers, and achieve the effect of improving design and construction level, ensuring safe operation, and optimizing stress
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[0028] The present invention is a method for optimizing analysis of the force of bolt connection points, including the following steps:
[0029] Step 1: Optimal analysis of node force when considering bolt pre-tightening force;
[0030] In the optimization analysis of the force on the bolt node, it is considered that the pre-tightening force of the bolt may have an impact on the tension process of the node. Therefore, taking the Q345B-M16 single-row bolt node as an example, the design value of the pre-tightening force is 0 %, 50%, 150%, and 200% of the load for joint tensile tests, such as figure 1 As shown, figure 1 Is the load-displacement curve of the node under different preload. From figure 1 It can be seen that the failure form of the joint is bolt shear; the load-displacement curve of the joint basically coincides, where the design value of the preload force is 0% and the design value of the preload force is 40%. The load-displacement curve 1-1 node and The slip process of ...
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