论文部分内容阅读
为研究偏心腹杆对交错桁架结构体系的抗震性能的影响,将数量不同的內填偏心腹杆桁架代替原结构的混合桁架建立3个计算模型,采用有限元分析软件ANSYS对3个偏心腹杆桁架结构和原桁架结构进行模态和时程分析.对比结果表明:偏心腹杆增加了结构的耗能能力,同时有效地增加了交错桁架结构的横向刚度,减小了结构顶点横向的水平位移;随着偏心腹杆数量的增多,结构横向水平位移的减小越明显.
In order to study the influence of eccentric webs on the seismic performance of staggered truss system, three calculation models were constructed by replacing the eccentric truss with eccentric trunnions instead of the original hybrid truss. The finite element analysis software ANSYS was used to analyze the three eccentric webs Truss structure and original truss structure.The results of comparison show that the eccentric webs increase the energy dissipation capacity of the structure and effectively increase the lateral stiffness of the staggered truss structure and reduce the lateral horizontal displacement of the structure apex ; As the number of eccentric webs increases, the horizontal horizontal displacement of structures decreases more obviously.