（同济大学建筑设计研究院（集团）有限公司，上海 200092）

［摘要］上海世博会荷兰国家馆主体结构为环绕式连续箱梁结构。对其结构体系及加劲肋体系进行了介绍。采用弹性支座模拟桩基以考虑基础与上部结构的共同作用；对较大扭矩作用下的箱梁结构承载能力进行了探讨；对采用X形连接板的箱梁与钢管柱连接进行弹塑性有限元分析以验证其承载能力及破坏机制。

［关键词］世博会；环绕式连续箱梁结构；弹性桩基支座；桩基刚度；弯扭共同作用；X形加劲肋板

Design and research of complex box-beam structure of Holland Pavilion Expo 2010 Shanghai

Luo Zhiyuan, Liu Bing（Architecture Design & Research Institute of Tongji University (Group) Co., Ltd., Shanghai 200092, China）

Abstract:The Holland Pavilion of Expo 2010 Shanghai is a complex surrounding box-beam structure. The structure layout and the light and efficient stiffener system were mainly introduced. The innovative elastic pile support method was used, which could consider the combination action of foundation and upper structure. The bearing capacity of box-beam under large torsion moment was discussed. X-type connector was used for the box-beam and pipe column connection, and E-P FEM analysis was used to verify its bearing capacity and failure mechanism. Several important conclusions are provided for the reference of similar projects.

Keywords:Expo; surrounding continuous box-beam structure; elastic pile support; pile stiffness; combination action of bending and torsion moment; X-type stiffener

作者简介：罗志远，硕士，工程师，Email:72LB@tjadri.com。