长沙黄花国际机场T2航站楼出发大厅抗震性能分析  

Seismic performance analysis of the departure hall of T2 terminal building of Huanghua International Airport in Changsha

作　　者：夏心红 方辉 毛健宇 王四清 董冰 XIA Xinhong;FANG Hui;MAO Jianyu;WANG Siqing;DONG Bing(Hunan Architectural Design Institute Group Co.,Ltd.,Changsha 410012,China)

机构地区：[1]湖南省建筑设计院集团股份有限公司,长沙410012

出　　处：《建筑结构》2022年第22期1-6,34,共7页Building Structure

基　　金：湖南省建筑设计院集团股份有限公司科技研发课题(KY0200-0000-2009-0237)。

摘　　要：长沙黄花国际机场T2航站楼出发大厅长400m,宽84m;下部结构采用组合框架结构,屋盖采用曲面空间管桁架结构。屋盖长度超长,且结构两主轴方向刚度差异较大,需进行抗震性能化设计。对结构进行了多遇地震作用下的弹性反应谱分析、单点及多点时程分析及罕遇地震作用下的弹塑性时程分析。结果表明:在多遇地震作用下,结构均处于弹性状态,最大弹性层间位移角满足规范要求;在罕遇地震作用下,结构的最大弹塑性层间位移角满足规范要求;下部组合框架的塑性铰出现在梁端,框架柱均处于弹性状态;屋盖钢结构主桁架部分上下弦杆出现轻微屈服,部分关键构件轻度损坏,地震后稍加维修即可正常使用,结构抗震性能较好,满足既定性能目标。The departure hall of T2 terminal building of Huanghua International Airport in Changsha is 400m long and 84m wide.The substructure adopts composite frame structure,and the roof adopts curved space pipe truss structure.The roof length is super long,and the stiffness difference between the two main axes of the structure is large,so the performance-based seismic design is required.The elastic response spectrum analysis,single point and multi-point time-history analysis under the frequent earthquake and elastic-plastic time-history analysis under the rare earthquake were carried out on the structure.The results show that the structure is in elastic state under the frequent earthquake,and the maximum elastic inter story displacement angle meets the code requirements.Under the rare earthquake,the maximum elastic-plastic inter story displacement angle of the structure meets the code requirements.The plastic hinge of the lower composite frame appears at the beam end,and the frame columns are in elastic state.The upper and lower chords of the main truss of the roof steel structure slightly yield,and some key components are slightly damaged but can be used normally with a little maintenance after the earthquake.The seismic performance of the structure is good,meeting the established performance goals.

关 键 词：长沙黄花国际机场 超长结构 抗震性能 行波效应 弹塑性时程分析 

分 类 号：TU391[建筑科学—结构工程]