(中国建筑西南设计研究院有限公司，成都 610081)

［摘要］   选取了三组天然地震波和一组人工波，采用动力弹塑性时程分析方法对成都双流国际机场T2航站楼在罕遇地震作用下的抗震性能进行了分析。结果表明，在罕遇地震作用下，该结构的钢筋混凝土框架最大弹塑性层间位移角小于规范的限值；超长结构楼板平面内变形显著，Y向最大位移角出现在结构长边的中部；大跨度钢拱结构尚处于弹性阶段；钢筋混凝土框架结构的塑性铰主要出现在梁端；有少数框架柱出现塑性铰，且屈服程度较轻；直接支承钢结构的框架柱基本上处于弹性。成都双流国际机场T2航站楼的设计达到了预定的抗震设防目标。
［关键词］   弹塑性时程分析；   抗震性能；   超长结构Inelastic time-history analysis on the hall structure in Chengdu
Shuangliu International Airport T2 Terminal Building
Zhou Dingsong, Xiao Kejian, Chen Zhiqiang
(China Southwest Architectural Design and Research Institute Co., Ltd., Chengdu 610081, China)
Abstract:Seismic behavior of Chengdu Shuangliu International Airport T2 Terminal Building was studied by inelastic time-history analysis method under severe earthquake excitation. The input motion for the inelastic time-history analysis included three earthquake records and one artificial wave. Results indicate that the maximum drift angle of RC frame under severe earthquake is less than the limit value; the plane internal deformation of the ultra long structure is remarkable; the Y direction maximum drift angle appears at middle broadside of the structure; the long-span steel arches are still in the elastic stage; most plastic hinges are formed in frame beams; a few plastic hinges are formed in frame columns and the columns yields slightly; the frame columns which support the steel arches are almost in the elastic stage. The results indicate that the design of the structure achieves the seismic performance objectives.
Keywords:inelastic time-history analysis; seismic behavior; supper-long structure
作者简介：周定松，高级工程师，一级注册结构工程师，Email：zhoudingsong@163.com。

参考文献
［1］   超限高层建筑工程抗震设防专项审查技术要点［S］. 2006.
［2］   GB50011—2001 建筑抗震设计规范［S］. 2008版. 北京：中国建筑工业出版社，2008.
［3］   钱稼茹，范重. 国家体育场大跨度钢结构罕遇地震性能分析［J］. 建筑结构学报，2007，28(2)：17-25.
［4］   American Society of Civil Engineers. Prestandard and commentary for the seismic rehabilitation of buildings［S］. FEMA356, Washington D.C.: Federal Emergency Management Agency, 2000.