(中国建筑设计研究院结构设计研究院，北京  100044)

［摘要］某招商中心采用单层球面网壳结构，球形外立面直接落地，表面开有三处大门洞，形成结构的薄弱点。着重介绍了开孔单层网壳的方案选择、支承体系、设计荷载以及强度和整体稳定计算等。设计根据强度条件初步确定截面以后，应进行非线性全过程屈曲分析，并考虑初始缺陷的影响程度来综合确定球壳的极限承载能力。

［关键词］开孔单层球面网壳；动力特性；抗震设计；屈曲分析

Design of single layer spherical latticed structure of merchant center

Yang Wei, Huo Wenying, Zhang Shitong(China Architecture Design & Research Group, Beijing 100044,China)

Abstract:The single layer spherical latticed structure is used in a merchant center. The spherical dome covers the ground directly. Three gates are opened in the dome and become the weakness of the structure. The scheme selection，support system，design load，strength and global stability of the holed-single spherical dome are introduced. The nonlinear buckling analysis should be done after the sections of members are decided according to the strength of materials, and the original disfigurement should be considered to calculate the ultimate bearing capacity of the spherical dome.

Keywords:holed-single spherical dome；dynamic response；seismic design；buckling analysis

作者简介：杨威，硕士，工程师，Email:yangw@cadg.cn。

 

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