泰达市民广场多折面钢结构及拉杆桁架支承体系和膜结构设计与研究  

Design and research of multi-slope steel structure,cable truss and membrane structures of Taida Civilian Plaza

作　　者：郭彦林[1] 兰涛[2] 田广宇[1] 刘涛[1] 田晋华 

机构地区：[1]清华大学,北京100084 [2]西安建筑科技大学,西安710055 [3]珠海红海特种玻璃幕墙有限责任公司,珠海519060

出　　处：《建筑结构》2010年第3期15-20,共6页Building Structure

摘　　要：天津泰达市民广场多折面大斜坡由两折面钢结构桁架与三折面拉杆桁架幕墙支承结构及置于二者之上的六块骨架式膜结构组成。对两折面钢管桁架与三折面幕墙支承结构体系的传力路径、受力特点进行了分析和探讨,并基于建筑美观的要求,提出了大斜坡钢结构沿纵向设置伸缩缝释放温度应力的铰接-滑移节点及连接形式;应用多链杆一体化计算模型研究了膜材与骨架支承体系之间的相互作用,并通过模态分析揭示了其刚度分布;分析了结构设计中特殊节点的受力机理并提出了节点的设计及构造方法。The multi-slope steel stucture of Tianjin Taida Civilian Plaza is formed by a combination of the double-directional steel structure trusses,one directional cable trusses supporting the glass panels,and six framework membrane structures over the steel structure trusses.Structural design scheme and mechanical performance of the multi-slope steel structure,cable trusses,and framework membrane structures are analyzed extensively. The hinge-slip joints are developed in order to release the temperature stress of the slope steel structure trusses longitudinally,and only in this way,a good architecture appearance will be reached.In addition,the interaction between the membrane and framework is investigated by using multi-link model.The value of the stiffness of the framework membrane structure is indicated by mode analysis.The constructional details of special joints are put forward based on their mechanical performance.

关 键 词：多折面大斜坡钢结构 索杆桁架 温度应力 伸缩缝 骨架式膜结构 节点构造 

分 类 号：TU318[建筑科学—结构工程]