(湖南省建筑设计院集团股份有限公司, 长沙 410012)

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。

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

中图分类号:TU391 文献标志码:A 文章编号:1002-848X(2022)22-0001-06

DOI:10. 19701 / j. jzjg. ZJ220084

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

XIA Xinhong, FANG Hui, MAO Jianyu, WANG Siqing, DONG Bing

(Hunan Architectural Design Institute Group Co. , Ltd. , Changsha 410012, China)

Abstract: The departure hall of T2 terminal building of Huanghua International Airport in Changsha is 400m long and 84mwide. The substructure adopts composite frame structure, and the roof adopts curved space pipe truss structure. The rooflength is super long, and the stiffness difference between the two main axes of the structure is large, so the performance-basedseismic design is required. The elastic response spectrum analysis, single point and multi-point time-history analysis underthe 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 storydisplacement angle meets the code requirements. Under the rare earthquake, the maximum elastic-plastic inter storydisplacement angle of the structure meets the code requirements. The plastic hinge of the lower composite frame appears at thebeam end, and the frame columns are in elastic state. The upper and lower chords of the main truss of the roof steel structureslightly yield, and some key components are slightly damaged but can be used normally with a little maintenance after theearthquake. The seismic performance of the structure is good, meeting the established performance goals.

Keywords:Huanghua International Airport in Changsha; super-long structure; seismic performance; traveling wave effect;elastic-plastic time-history analysis

∗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)。

第一作者:夏心红,博士,研究员级高级工程师,主要从事钢结构、超高层建筑、装配式建筑设计,Email:xiaxh@ hnadi. com. cn。

[引用本文] 夏心红,方辉,毛健宇,等. 长沙黄花国际机场 T2 航站楼出发大厅抗震性能分析[ J]. 建筑结构,2022,52(22):1-6,34. XIA Xinhong,FANG Hui,MAO Jianyu,et al. Seismic performance analysis of the departure hall ofT2 terminal building of Huanghua International Airport in Changsha[J]. Building Structure,2022,52(22):1-6,34.