邹城体育场挑篷结构设计与分析  

Structural Design and Analysis on Canopy of Zoucheng Stadium

作　　者：杨庆辉[1] 丁洁民[2] 张峥[2] 

机构地区：[1]同济大学建筑工程系,上海200092 [2]同济大学建筑设计研究院,上海200092

出　　处：《结构工程师》2011年第6期1-6,共6页Structural Engineers

摘　　要：邹城体育场挑篷钢结构采用钢管混凝土桅杆与钢桁架及拉索组成的桅杆斜拉桁架结构体系,对拉索施加一定的预应力作为桁架的弹性支点以形成结构的刚度和承载力。详细介绍了挑篷的结构构成和受力特点,并对拉索吊点的位置、桅杆与看台柱连接方式及主桁架与柱网相对位置关系进行探讨,从而确定合理的结构布置形式。采用有限元软件对结构进行了静力分析,分析结果表明,几何非线性对该结构的变形和内力影响很小,考虑到结构具有多重传力路径,允许斜拉索在负风压下退出受拉,以减小斜拉索拉力过大带来的负作用。最后介绍了重要节点的设计构造。Mast-cable-stayed truss structure which consists of concrete-filled column,steel truss and cable was used for Zoucheng stadium canopy.Prestressed cables provided elastic supports for the truss to form structural stiffness and bearing capacity.This paper described the composition and characters of the structure in detail.The suspension points of the cable,the mast-column connections and the relative position of main truss to column were discussed,thus the proper structural layout was determined.Static analysis on the structure was carried out with FEM software.The results indicated that the geometric nonlinearity has little effect on the deformation and internal force of the structure;taking into account of the multiple load paths,the cables can be permitted to do not work in wind suction in order to reduce the negative effects caused by large tension force of the cable.At last,the design and configuration of important joints were introduced.

关 键 词：体育场挑篷 斜拉结构 结构选型 预应力 节点设计 

分 类 号：TU399[建筑科学—结构工程]