【作者】 徐忠根； 陈震东； 李文杰； 赖佳宝； 赵亚涛；

【Author】 Xu Zhonggen;Chen Zhendong;Zhao Yatao;Department of civil engineering, Guanghzou university;

【机构】 广州大学土木工程学院；

【摘要】 针对大跨空间钢桁架隔震结构,研究了隔震支座初始转角缺陷对结构的性能的影响。通过有限元分析研究可知,结构应力松弛将导致隔震支座出现初始转角缺陷;随着转角的增加,桁架结构节点水平位移、钢环梁内力均增加,此外隔震支座水平位移同样随着隔震支座转角的增加而增加;从以上分析可以看出大跨度空间桁架结构设计时不可忽略隔震支座转角的影响。更多还原

【Abstract】 The effect of initial rotation defect of isolation bearings on the performance of large-span space steel truss isolation structures is studied. The finite element analysis shows that the structural stress relaxation will lead to the initial rotation defect of the isolation bearing. With the increase of the rotation, the horizontal displacement of the truss node and the internal force of the steel ring beam both increase, and the horizontal displacement of the isolation bearing also increases with the increase of the rotation of the isolation bearing. From the above analysis, it can be seen that the influence of isolation bearing angle cannot be ignored in the design of large-span space truss structure.更多还原