新加坡植物园展览温室Cool Dry拱壳杂交结构的设计与整体稳定性分析  

Design and global stability analysis of arch-shell structure for Cool Dry Conservatory at Gardens by the Bay,Singapore

作　　者：白音[1] 王元清[2] 石永久[2] 张昭一[3] 

机构地区：[1]北京航空航天大学交通科学与工程学院,北京100191 [2]清华大学土木工程系,结构工程与振动教育部重点实验室,北京100084 [3]中国建筑科学研究院深圳分院,广东深圳518057

出　　处：《空间结构》2011年第1期81-85,96,共6页Spatial Structures

摘　　要：新加坡植物园Cool Dry温室用来展览适合在凉爽干燥环境中生存的植物,由于其建筑造型的需要,采用异型拱-壳钢结构体系,且在壳体上设置由双层玻璃构成的幕墙体系,大拱之间增设部分拉索以增强侧向稳定性.基于该工程诸多特殊性,采用常用的结构设计软件无法对其进行准确的计算分析,利用ANSYS有限元软件对其初步设计进行了进一步优化和静力计算复核,并考虑几何非线性,对结构整体弹性、弹塑性稳定性能进行了评估.Cool Dry Conservatory at gardens by the bay in Singapore is used for exhibiting plants which are suited for living in cool and dry situations.Due to the demand of architecture profile,this conservatory adopts special-shaped arch-shell structural system,and curtain walls made of double-layer glass are placed on the shell.Tensioned cables are set between large arches to increase lateral stability capacity.Because of such special properties of the project,common structural analysis software can not meet the need.FEA software ANSYS was employed to make design optimization for initial design and calculating verification.The global stability capacities taking account of geometry non-linear elasticity and elasto-plasticity conditions were evacuated and analyzed.

关 键 词：异型结构 设计优化 整体稳定性 极限承载力 局部稳定性 

分 类 号：TU393.3[建筑科学—结构工程]