（北京市建筑设计研究院有限公司，  北京  100045）

［摘要］厦门东海火炬科技园S3#楼为大跨度多曲面单层网壳结构，整个结构中存在大量空间弯扭构件。采用有限元分析方法（软件SAP 2000，ANSYS）对结构进行了整体受力分析，采用拆除构件法对结构进行防连续倒塌分析，在考虑结构初始几何缺陷的情况下，对单层网壳结构进行全过程分析。结果表明，整体结构满足受力要求，未出现连续倒塌情况；单层网壳极限承载力对应的安全系数小于规范限值。

［关键词］厦门东海火炬科技园S3#楼； 单层网壳； 连续倒塌； 初始几何缺陷； 整体稳定； 全过程分析

中图分类号：TU391文献标识码：A文章编号：1002-848X(2017)15-0011-05

Overall mechanical analysis and stability research on large-span single-layer latticed shell with

 multi surfaces on S3# building of Donghai Torch Science Park in Xiamen

Ma Kai, Yang Yong

(Beijing Institute of Architectural Design, Beijing 100045, China)

Abstract:S3# building of Donghai Torch Science Park in Xiamen is a large-span single-layer latticed shell structure with multi surfaces. There are many flexural-torsional components in this building. Overall mechanical analysis was conducted on the structure by programs of SAP 2000 and ANSYS using finite element analysis method. Prevention of progressive collapse analysis was finished by demolishing components method. Full-range analysis on the sing\|layer latticed sheel  structure was completed on the basis of the consideration of initial geometric imperfection. The result shows that the overall mechanical behavior can meet force requirements, and the progressive collapse can be avoided. Safety coefficient corresponding to the ultimate bearing capacity of the single-layer latticed shell is less than limit value.

Keywords:S3# building of Donghai Torch Science Park in Xiamen; single layer latticed shell; progressive collapse; initial geometric imperfection; overall stability; full range analysis

作者简介：马凯，硕士，工程师，Email：mk-14132008@163.com。