(华东建筑设计研究院有限公司  上海 200002)
［提要］  中国浦东干部学院是国家干部培训基地之一，钢结构屋盖的最大跨度近63m，采用了双向正交钢桁架体系。钢屋盖主要支承在钢柱支撑上，并运用了多种滑动支座、摇摆柱、梭形钢结构桁架柱，以减少屋盖的跨度并丰富建筑的表现手段。主要介绍了大跨度钢结构的结构布置、其动力特性及各工况下的内力分布、基础拉梁、摇摆柱、梭形钢结构桁架柱、滑动支座的设计等内容。
［关键词］  大跨度钢结构  滑动支座  摇摆柱  梭形钢结构桁架柱  铸钢件
Steel Structural Design and Study for China Executive Leadship Academy Pudong/Zhang Weiyu, Hua Gengsheng, Chen Chunhui, Chen Weiyu, Ding Shenggen, Zhu Ying, Zhang Meng, Guan Haitao (East China Architectural Design & Research Institute Co., Ltd., Shanghai 200002, China)
Abstract:China Executive Leadship Academy Pudong is one of the national bases for training cadre. The maximum span of the roof truss being applied with twoway orthogonal steel truss system almost reaches 63m. The roof structure is mainly supported by steel column. Meanwhile, various sliding bearings, swinging columns and steel shuttleshaped truss columns are put into application to reduce the roof span and enrich the architectural image as well. The design of the bigspan steel structure is introduced for structural layout, and its dynamical characteristics and internal forces distribution under different load cases, foundation tie bar, swinging column, steel shuttleshaped truss column and sliding bearing etc,are presented.
Keywords:bigspan steel structure; sliding bearing; swinging column; shuttleshaped steel truss column; caststeel member