东方艺术中心点支式玻璃幕墙钢架-支撑-索网结构支承体系研究  

Study on the steel frame-brace-cabling structural support system for point-supporting glass curtain wall of Oriental Art Center

作　　者：汪大绥[1] 姚利民[1] 花更生[1] 张伟育[1] 李承铭[2] 李忠湧 宁风 

机构地区：[1]华东建筑设计研究院有限公司,上海200002 [2]上海现代建筑设计集团有限公司,上海200041 [3]东方艺术中心项目建设指挥部,上海200135

出　　处：《建筑结构学报》2006年第3期113-119,共7页Journal of Building Structures

摘　　要：东方艺术中心幕墙具有大跨、超长及弧形等特点,为了克服传统支承结构构件多杂的缺点,本文提出钢架-支撑-索网结构支承体系。其中椭圆杆立柱与圆杆横梁铰接(边部刚接)形成钢架,钢架背后通过一系列有规律布置的支撑系统来减少立柱的断面及增加支承体系的刚度,钢架与玻璃之间设置预应力索网以增加支承体系的整体稳定性。刚架下部通过铰节点支承于底部混凝土支座,上部通过水平链杆与长悬臂屋架上弦杆相连以消除屋架位移对结构的影响,并通过设置于支座及水平链杆上的碟形弹簧来减小温度应力的影响。本文首先对该设计理念的形成作了阐述,其次运用ANSYS程序对结构在恒、风、温度及地震等荷载作用下进行了静力、动力分析及线性和非线性的整体稳定分析,最后对该结构中主要节点的处理等方面作了介绍。The curtain wall of Oriental Art Center characterized long-span, over-length and curved surface. In order to avoid the weakness of complicated elements in the traditional support system, a new steel frame-brace-cabling support system is presented in this paper. The steel frame is formed by joined elliptical column and tube beam with the rigid connection at the side. Brace system is put behind to reduce the size of the column and strengthen the frame. Prestressed cable between the curtain wall and frame is used to strenthen the stability of the system. The whole system is joined to the basement at the bottom and connected to the up-chord of the roof truss by the horizontal tube. The spring used on the support can reduce the affect of the temperature modification. In this paper, firstly, the form of the system is introduced. Secondly, with ANSYS program, the static and dynamic analysis under different load cases, also with the linear and non-linear analysis of the system, is presented. Finally, joint design of the system is introduced.

关 键 词：点支式玻璃幕墙 支承结构体系 整体计算 节点设计 

分 类 号：TU382[建筑科学—结构工程] TU318