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为研究狗骨式连接轻钢框架的抗震性能分析方法和设计方法,对两跨两层狗骨式连接轻钢框架拟静力试验试件进行了静力弹塑性分析,节点域用转动弹簧来考虑其剪切变形,采用双线性特性塑性铰,计算结果与试验结果较一致。狗骨式连接轻钢框架具有很好的抗震性能,梁上塑性铰首先出现在翼缘削弱截面处。针对狗骨式连接钢框架的特点,提出了抗震设计建议,推导得出了保证塑性铰出现在翼缘削弱部位的条件。
In order to study the seismic performance analysis method and design method of light steel frame with dog bone connection, the static elastic-plastic analysis of two-span two-layer dog light frame pseudo-static test of light steel frame was carried out. Considering the shear deformation, the bilinear plastic hinges are used. The calculation results are in good agreement with the experimental results. Dogbone connection light steel frame has a good seismic performance, the plastic hinge on the beam first appeared in the flange weakened section. Aiming at the characteristics of the dog bone connection steel frame, the seismic design proposal is put forward, and the condition of ensuring the plastic hinge to appear in the weakened part of the flange is deduced.