摘要
长沙市体育中心体育馆规模18087座,总建筑面积97800m^(2)。体育馆屋面投影为椭圆形,内支座跨度为114.1m×145.1m。屋盖采用了双向正交正放网架,外围周边立面采用了平面桁架。屋盖双向正交正方网架与外围的立面桁架通过屋盖周边的转换桁架相连接。屋盖顶部采用弹性铰支座,立面桁架下端采用了关节轴承支座。重点介绍了设计中遇到的主要设计难点和采取的措施,包括屋盖选型、屋面桁架通过转换桁架向外围立面桁架过渡的问题、外围立面桁架平面外支撑问题、半球鼓节点的使用、风洞试验等。设计中采用不同的软件进行了分析对比,并给出了主要的计算分析结果,对屋盖结构整体的抗震性能、稳定及屋盖抗连续倒塌性能等进行了分析。通过这些措施和方法,确保结构安全可靠,满足建筑功能要求。
Changsha Sports Center Gymnasium has 18,087 seats,with a total construction area of 97,800 square meters.The roof projection of the gymnasium is oval,and the span of the inner support is 114.1m×145.1m.The two-way orthogonal positive space truss is adopted on the roof and the peripheral perimeter facade is a plane truss.The two-way orthogonal positive space truss of the roof is connected with the peripheral facade plane truss through the conversion truss around the roof.The elastic hinge support is adopted on the top of the roof and the joint bearing support is adopted under the lower end of the peripheral facade plane truss.The paper focuses on the main design difficulties encountered in the design and the measures taken,including the selection of the roof structure,the conversion of the roof truss to the peripheral facade plane truss through the conversion truss,the out-of-plane support of the peripheral facade plane truss,the use of hemispherical drum joint,wind tunnel test,etc.In the design,different softwares are used to analyze and compare,and the main calculation and analysis results are given.The overall seismic performance,stability and anti-collapse performance of the roof structure are analyzed.Through these measures and methods,the safety and reliability of the structure are ensured and the functional requirements of the building are meeted.
作者
陈平友
陈文明
姚丽
吴鹏程
CHEN Pingyou;CHEN Wenming;YAO Li;WU Pengcheng(Chengdu JZFZ Architectural Design Co.,Ltd.,Chengdu 610021,China;China Southwest Architectural Design and Research Institute Co.,Ltd.,Chengdu 610041,China)
出处
《建筑结构》
CSCD
北大核心
2022年第S01期546-550,共5页
Building Structure
关键词
双向正交正放网架
屋盖选型
转换桁架
半球鼓节点
风洞试验
two-way orthogonal positive space truss
selection of roof structure
conversion truss
hemispherical drum joint
wind tunnel test
作者简介
第一作者:陈平友,硕士,高级工程师,一级注册结构工程师,主要从事建筑结构设计工作,Email:374627086@qq.com。
