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(1 華東建筑設(shè)計(jì)研究院有限公司， 上海 200002； 2 杭州蕭山國(guó)際機(jī)場(chǎng)有限公司， 杭州 311209；3 中國(guó)建筑第八工程局有限公司， 上海 200135) 

［摘要］杭州蕭山國(guó)際機(jī)場(chǎng)三期新建項(xiàng)目T4航站樓主樓為三個(gè)混凝土結(jié)構(gòu)單元支承一個(gè)鋼結(jié)構(gòu)屋蓋的屋頂連體結(jié)構(gòu)，屋蓋最大長(zhǎng)度466m，最大寬度291m。對(duì)其進(jìn)行考慮行波效應(yīng)的多點(diǎn)地震激勵(lì)響應(yīng)分析，重點(diǎn)研究罕遇地震下，非一致激勵(lì)與一致激勵(lì)帶來(lái)的差異性，最終將可能的不利影響反映到抗震設(shè)計(jì)當(dāng)中。結(jié)果表明：非一致激勵(lì)的地震總剪力約為一致激勵(lì)的60%~80%，且層間位移角也明顯減小，其數(shù)值滿足規(guī)范限值1/50的要求；非一致激勵(lì)下，部分關(guān)鍵構(gòu)件的內(nèi)力出現(xiàn)增大現(xiàn)象，增大后的內(nèi)力與原內(nèi)力比值的最大值在135%以內(nèi)；非一致激勵(lì)罕遇地震下，屋蓋總體基本保持在彈性范圍內(nèi)，滿足整體抗震安全性要求。下部混凝土結(jié)構(gòu)分縫后對(duì)上部屋蓋及支撐構(gòu)件影響呈現(xiàn)多樣性，部分支撐柱內(nèi)力有增大趨勢(shì)，設(shè)計(jì)中應(yīng)合理考慮。 

［關(guān)鍵詞］杭州蕭山國(guó)際機(jī)場(chǎng)；航站樓；多點(diǎn)激勵(lì)；行波效應(yīng)；內(nèi)力放大效應(yīng) 

中圖分類號(hào)：TU398-7 文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：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

*上海市優(yōu)秀技術(shù)帶頭人計(jì)劃項(xiàng)目(21XD1430500)，上海市自然科學(xué)基金項(xiàng)目(21ZR1415300)。

 作者簡(jiǎn)介：安東亞，博士，正高級(jí)工程師，Email:dongya_an@ecadi.com； 通信作者：周健，碩士，教授級(jí)高級(jí)工程師，Email：jian_zhou@ecadi.com。