半刚性双层柱面网壳结构的动力分析  

Dynamic Analysis of Semi-rigid Double-layer Cylindrical Latticed Shells

作　　者：许曙光 王文欢 司耀黎 常晓霞[2] 刘锋[2] XU Shu-guang;WANG Wen-huan;SI Yao-li;CHANG Xiao-xia;LIU Feng(Guangzhou Andexin Curtain Wall Co.,Ltd,Guangzhou 510330;School of Civil and Transportation Engineering,Guangdong University of Technology,Guangzhou 510006)

机构地区：[1]广州安德信幕墙有限公司,广州510330 [2]广东工业大学土木与交通工程学院,广州510006

出　　处：《广州建筑》2023年第5期29-32,共4页GUANGZHOU ARCHITECTURE

基　　金：广东省企业科技特派员专项(GDKTP2021028200)。

摘　　要：本文旨在通过数值方法分析双层柱面网壳的动力性能。建立了具有不同节点刚性的双层柱面网壳结构的有限元模型,能够合理模拟节点半刚性。采用该有限元模型对双层柱面网壳结构的动力性能进行了分析,计算了结构的自振频率。研究了节点刚度、网壳矢跨比、跨度对结构自振特性的影响规律。分析表明,随着节点刚度的增加,网壳结构的自振频率略有增加,增加幅度为1%左右。结构的自振频率随矢跨比的减小而增大,增幅约为47%,随跨度的增大而减小,减小幅度约为44%。本文的结论将对双层柱面网壳结构的设计、优化和施工提供有益的参考。This study mainly focused on the dynamic behavior of double-layer cylindrical latticed shell structure.An FE model was established for the structure consisting joints with various stiffness,which is able to reasonably simulate the stiffness of the joints.By using the developed FE model,dynamic analysis was conducted for the shell structure and the natural frequency were calculated.This paper investigated the effects of the joint rigidity,rise-to-span ratio and the span length on the natural frequency of the structure.It is found that with the increase in the joint rigidity,the natural frequency increases slightly by about 1%.The natural frequency increases with the decrease of rise-to-span ratio(about 47%)and the span length(about 44%).Conclusions from this study will provide useful reference for the design,optimization and construction of the latticed shell structures.

关 键 词：半刚性连接 柱面网壳 自振频率 地震响应 

分 类 号：TU399[建筑科学—结构工程]