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    劉軍生¹，商  鈺²，司春燦²，劉文琪¹
    （1 陜西省建筑科學(xué)研究院，西安710082; 2 西安建筑科技大學(xué)，西安710055）

[摘要] 西安咸陽(yáng)國(guó)際機(jī)場(chǎng)二期擴(kuò)建工程T3A航站樓工程結(jié)構(gòu)復(fù)雜，針對(duì)特殊的地震及地質(zhì)條件，對(duì)其采用了隔震技術(shù)，即在該航站樓的各層鋼柱柱腳處設(shè)置鉛芯橡膠隔震支座，將薄弱層改造為隔震層，并對(duì)該普通結(jié)構(gòu)和隔震結(jié)構(gòu)分別運(yùn)用SAP2000軟件進(jìn)行計(jì)算分析。分析結(jié)果表明，隔震支座豎向具有很強(qiáng)的承載能力，同時(shí)水平向也具有很大的變形能力，從而改善了結(jié)構(gòu)的抗震性能，使得該工程更加安全放心地投入使用。
[關(guān)鍵詞] 航站樓；橡膠隔震支座；隔震技術(shù)；抗震性能

Application ofisolated bearings in the construction project of Xianyang International Airport in Xi'an
Liu Junsheng¹, Shang Yu², Si Chuncan², Liu Wenqi¹
 (1  Shaanxi Research Institute of Building Sciences, Xi'an 710082, China;2 Xi'an University of Technology and Architecture, Xi'an 710055, China)

Abstract: The second expansion project T3A Terminal building of Xi'an Xianyang International Airport is a national key project and will be a large hub airport. Because of the structural complexity and the unique seismic and geological conditions, the lead rubber bearings were installed at the foot of the steel columns in each story. The weak story of the structure was changed to an isolation story. In this project, two structure analysis programs called SAP2000 and SETWE were used for the two structures, which one is ordinary structure and the other is isolated. The results showed that the isolation bearings have strong bearing capacity in vertical and great deformation capacity in horizontal, thus can improve the seismic behavior ofthe structure and make the engmeermg more safely to use.
Keywords: airport terminal building; rubber bearing isolator; isolation technology; seismic performance