成都双流国际机场T2航站楼大厅弹塑性时程分析  

Inelastic time-history analysis on the hall structure in Chengdu Shuangliu International Airport T2 Terminal Building

作　　者：周定松[1] 肖克艰[1] 陈志强[1] 

机构地区：[1]中国建筑西南设计研究院有限公司,成都610081

出　　处：《建筑结构》2010年第9期23-26,共4页Building Structure

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。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.

关 键 词：弹塑性时程分析 抗震性能 超长结构 

分 类 号：TU375.4[建筑科学—结构工程]