El Eentro地震波下杆件屈曲对K8型单层球面网壳结构敏感性分析  

Sensitivity Analysis of the Member Buckling to the Single-Layer Lattice Dome under Seismic Wave

作　　者：马斌 魏昕[2] 马腾飞[2] 周晖[2] 崔海洋 Ma Bin Wei Xin Ma Tengfei Zhou Hui Cui Haiyang(Langfang City Construction Group, 2. Construction Engineering Department, North China Institute of Aerospace Engineering Langfang065000, Chin)

机构地区：[1]廊坊市城市建设工程集团公司 [2]北华航天工业学院建筑工程系,河北廊坊065000

出　　处：《北华航天工业学院学报》2017年第4期25-27,共3页Journal of North China Institute of Aerospace Engineering

基　　金：北华航天工业学院基金项目(KY-2016-17);廊坊市科技局基金项目(2016011061)

摘　　要：网壳结构的动力稳定性是空间结构研究的重要课题之一。目前,对于网壳结构动力稳定性的研究很少有考虑杆件屈曲这一因素的影响。本文在前有研究成果的基础上,以多段梁法模拟杆件的初弯曲,通过削减杆件截面,使其先于网壳结构整体失稳之前首先屈曲,研究在El Eentro地震波作用下,K8型单层球面网壳结构对不同位置处的杆件屈曲的敏感性。The stability of reticulated shell structures is one of the important subjects in space structure.At present,the research on dynamic stability of the single-layer lattice dome rarely considers the factor of member buckling.This paper simulates the initial buckling with the multiple-beam method and makes the buckling possible before losing stability of the K8single-layer lattice dome.It discusses the sensitivity of the K8single-layer lattice dome to different member buckling in the three dimensional seismic wave.

关 键 词：地震荷载 单层球面网壳结构 稳定性 杆件缺陷 杆件屈曲 

分 类 号：TU393.9[建筑科学—结构工程]