刘军生¹，商  钰²，司春灿²，刘文琪¹
    （1 陕西省建筑科学研究院，西安710082; 2 西安建筑科技大学，西安710055）

[摘要] 西安咸阳国际机场二期扩建工程T3A航站楼工程结构复杂，针对特殊的地震及地质条件，对其采用了隔震技术，即在该航站楼的各层钢柱柱脚处设置铅芯橡胶隔震支座，将薄弱层改造为隔震层，并对该普通结构和隔震结构分别运用SAP2000软件进行计算分析。分析结果表明，隔震支座竖向具有很强的承载能力，同时水平向也具有很大的变形能力，从而改善了结构的抗震性能，使得该工程更加安全放心地投入使用。
[关键词] 航站楼；橡胶隔震支座；隔震技术；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