- 摘 要
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(中國建筑西南設(shè)計研究院有限公司，成都 610081)
［摘要］ 選取了三組天然地震波和一組人工波，采用動力彈塑性時程分析方法對成都雙流國際機場T2航站樓在罕遇地震作用下的抗震性能進行了分析。結(jié)果表明，在罕遇地震作用下，該結(jié)構(gòu)的鋼筋混凝土框架最大彈塑性層間位移角小于規(guī)范的限值；超長結(jié)構(gòu)樓板平面內(nèi)變形顯著，Y向最大位移角出現(xiàn)在結(jié)構(gòu)長邊的中部；大跨度鋼拱結(jié)構(gòu)尚處于彈性階段；鋼筋混凝土框架結(jié)構(gòu)的塑性鉸主要出現(xiàn)在梁端；有少數(shù)框架柱出現(xiàn)塑性鉸，且屈服程度較輕；直接支承鋼結(jié)構(gòu)的框架柱基本上處于彈性。成都雙流國際機場T2航站樓的設(shè)計達到了預(yù)定的抗震設(shè)防目標(biāo)。
［關(guān)鍵詞］ 彈塑性時程分析； 抗震性能； 超長結(jié)構(gòu)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
作者簡介：周定松，高級工程師，一級注冊結(jié)構(gòu)工程師，Email：zhoudingsong@163.com。參考文獻
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［3］ 錢稼茹，范重. 國家體育場大跨度鋼結(jié)構(gòu)罕遇地震性能分析［J］. 建筑結(jié)構(gòu)學(xué)報，2007，28(2)：17-25.
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