摘要
主要对5个平放式栓接端板的门式刚架滞回性能进行有限元模拟分析.前4个模型考虑端板厚度,第5个模型考虑了梁截面尺寸对相关抗震性能参数的影响.研究结果表明:构件滞回环不饱满,破坏突然,抗震性能较差;随着端板厚度的增加和梁翼缘宽度的增加,构件的延性系数减小,抗震性能变差.
In this paper,hysteretic behaviors of five portal frames with steel bolted end-plate are simulated by finite element models.The first four models mainly take into account the difference of the thickness of end plates,the fifth model the effect of the beam cross-section size on the related seismic parameters.The results show that the hysteresis loops of components are small;destructions are sudden,and seismic performance is poor.With the thickness of the end plate and the width of the beam increasing,the ductility coefficient decreases and seismic performance deteriorates.
出处
《华北水利水电学院学报》
2010年第3期28-31,共4页
North China Institute of Water Conservancy and Hydroelectric Power
关键词
门式刚架
端板平放
滞回曲线
耗能系数
portal steel frame
end-plate flat
hysteresis curve
energy dissipation coefficient
