摘要
介绍了镇江体育会展馆屋盖结构体系的方案比选,屋面体系的布置,节点连接形式及支座形式的选择;建立了屋盖结构、围护钢桁架结构和下部钢筋混凝土框架结构的分离模型和整体模型,并对两种模型中各结构在竖向作用和水平作用下的内力与变形特性进行了分析比较,结果表明在竖向作用下两种模型受力特性相差不大,在水平作用下则存在差别。根据预应力设计原则,确定了拉索截面和张拉控制力;同时介绍了屋盖结构中关键节点的设计。
The structural system,roof system and support style of roof of the exhibition gymnasium of Zhenjiang were introduced.Separated model and integrated model of the roof structure,the enclosure structure and the reinforced concrete frame structure were developed.The internal force and deformation of each structure under horizontal and vertical load in two kinds of models were compared.The results indicate that the internal force and deformation in two kinds of models are similar under vertical actions,while different under horizontal actions.According to the principles of prestressing,the sections and tension control stress of prestressed cables were determined.Design of key joints in the roof structure was also introduced.
出处
《建筑结构》
CSCD
北大核心
2010年第9期53-57,95,共6页
Building Structure
关键词
镇江体育会展馆
屋盖结构
张弦桁架
预应力
节点设计
exhibition gymnasium of Zhenjiang
roof structure
truss string structure
prestress
joint design
