带初始缺陷的大跨度不锈钢双层网壳稳定性分析  

Stability Analysis of Long-Span Stainless Steel Double-Layer Spherical Reticulated Shell with Initial Defects

作　　者：侯文帅 周烨明 欧阳红星 王培栋 HOU Wen-shuai;ZHOU Ye-ming;OUYANG Hong-xing;WANG Pei-dong(China United Engineering Co.Ltd.,Hangzhou 310052,China)

机构地区：[1]中国联合工程有限公司,杭州310052

出　　处：《工程建设与设计》2022年第19期27-29,共3页Construction & Design for Engineering

摘　　要：基于几何非线性分析方法,根据B-R准则,采用3D3S空间结构计算软件对大跨度不锈钢双层球面网壳进行模态分析和稳定性分析,找出计算模型的失稳模态,并通过大变形非线性稳定分析以及考虑初始缺陷的非线性稳定分析,得出计算模型的极限承载力系数。Based on the geometric nonlinear analysis method and the B-R criterion,the modal analysis and stability analysis of long-span stainless steel double-layer spherical reticulated shell are carried out by using 3D3S spatial structure calculation software to find out the instability mode of the calculation model.Through the large deformation nonlinear stability analysis and the nonlinear stability analysis considering initial defects,the ultimate bearing capacity coefficient of the calculation model is obtained.

关 键 词：大跨度空间结构 不锈钢双层球面网壳 稳定性分析 几何非线性 

分 类 号：TU399[建筑科学—结构工程]