(1 华东建筑设计研究院有限公司， 上海 200002； 2 杭州萧山国际机场有限公司， 杭州 311209；3 中国建筑第八工程局有限公司， 上海 200135) 

［摘要］杭州萧山国际机场三期新建项目T4航站楼主楼为三个混凝土结构单元支承一个钢结构屋盖的屋顶连体结构，屋盖最大长度466m，最大宽度291m。对其进行考虑行波效应的多点地震激励响应分析，重点研究罕遇地震下，非一致激励与一致激励带来的差异性，最终将可能的不利影响反映到抗震设计当中。结果表明：非一致激励的地震总剪力约为一致激励的60%~80%，且层间位移角也明显减小，其数值满足规范限值1/50的要求；非一致激励下，部分关键构件的内力出现增大现象，增大后的内力与原内力比值的最大值在135%以内；非一致激励罕遇地震下，屋盖总体基本保持在弹性范围内，满足整体抗震安全性要求。下部混凝土结构分缝后对上部屋盖及支撑构件影响呈现多样性，部分支撑柱内力有增大趋势，设计中应合理考虑。 

［关键词］杭州萧山国际机场；航站楼；多点激励；行波效应；内力放大效应 

中图分类号：TU398-7 文献标识码：A文章编号：1002-848X(2021)23-0021-07

Multi-support seismic excitations response analysis of Hangzhou Xiaoshan International Airport T4 terminal building 

AN  Dongya1,  WANG  Ruifeng1,  CHEN  Yi2,  ZHOU  Jian1,  PAN  Junjun3,  YANG  Qin3 

(1 East China Architectural Design & Research Institute, Shanghai 200002， China； 2 Hangzhou Xiaoshan International Airport Co., Ltd., Hangzhou 311209， China； 3 China Construction Eighth Engineering Division Co., Ltd., Shanghai 200135， China) 

Abstract: Hangzhou Xiaoshan International Airport Phase Ⅲ new project T4 terminal building is a connected structure with three concrete structural units supporting a steel roof. The maximum length of the roof is 466m and the maximum width is 291m. The multi-support seismic excitations analysis considering the traveling wave effect was carried out, focusing on the difference between non-uniform excitation and the uniform excitation under the rare earthquake, and finally the possible adverse effects were reflected in the seismic design. The results show that total seismic shear force under non-uniform excitation is about 60%~80% of that under uniform excitation, and interlayer displacement angle is also significantly reduced, which meets the requirement of 1/50 of the code limit; under non-uniform excitation, there′s an increase in internal force of some key members, and the maximum ratio of the increased internal force to the original internal force is within 135 %; under the rare earthquake of non-uniform excitation, overall roof remains substantially within the elastic range, which meets the overall aseismic safety requirements. The segmentation of the lower concrete structure has different effects on the upper roof and its supporting members, and the internal force of some supporting columns tends to be enlarged, which should be reasonably considered in the design. 

Keywords:Hangzhou Xiaoshan International Airport； terminal building； multi-support seismic excitation； traveling wave effect； internal force amplification effect

*上海市优秀技术带头人计划项目(21XD1430500)，上海市自然科学基金项目(21ZR1415300)。

 作者简介：安东亚，博士，正高级工程师，Email:dongya_an@ecadi.com； 通信作者：周健，硕士，教授级高级工程师，Email：jian_zhou@ecadi.com。