- 摘 要
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（中國航空規(guī)劃建設(shè)發(fā)展有限公司，北京 100120）
［摘要］北京A380機庫跨度362.6m，是目前世界上單體規(guī)模最大的機庫。配合工程結(jié)構(gòu)設(shè)計，采用反應(yīng)譜法、彈性時程分析法以及靜力和動力彈塑性時程分析法，對大跨度機庫在各階段地震作用下的結(jié)構(gòu)反應(yīng)進行了分析，并考慮了行波效應(yīng)的影響。分析結(jié)果表明，在罕遇地震作用下，結(jié)構(gòu)整體剛度沒有明顯下降，整體受力狀態(tài)尚未達到結(jié)構(gòu)最大承載能力，機庫結(jié)構(gòu)設(shè)計達到了預(yù)定的抗震性能目標。同時，采用環(huán)境隨機振動激勵法對建成后該機庫的動力特性進行了現(xiàn)場實測，獲取了結(jié)構(gòu)實際動力特性相關(guān)參數(shù)，與理論分析進行對比，從而進一步了解結(jié)構(gòu)的抗震性態(tài)，驗證機庫結(jié)構(gòu)在地震作用下的安全性。
［關(guān)鍵詞］北京A380機庫；地震反應(yīng)分析；多點輸入；環(huán)境隨機振動激勵法；動力特性現(xiàn)場實測
Study on seismic analyses and tests of Beijing A380 hangar
Zhu Dan,Pei Yongzhong,Xu Rui,Tang Hongjun,Liu Ziyan(China Aviation Planning and Construction Development Co., Ltd., Beijing 100120, China)
Abstract:Beijing A380 hangar whose span is 362.6m, is the largest single hangar in the world. Using response spectrum method, elastic time-history analysis method, as well as static and dynamic elastic plastic time-history, analysis of large-span hangars in various stages of the structure under earthquake response is performed and the traveling wave effects are considered. The results show that, under the rare earthquake, the overall stiffness of the structure has no obvious drop, and the structure has not yet reached the maximum carrying capacity, the design of the aircraft achieves the predetermined goal of seismic performance. Using the environment random vibration stimulating method on the dynamic performance of the completed aircraft, the actual dynamic characteristics of structural-related parameters are obtained and compared with the theoretical analysis in order to further understand the seismic behavior of the structure and to verify the safety of the hangar structure in seismic.
Keywords:Beijing A380 hangar; seismic response analysis; multi-point input; environment random vibration stimulating method; measured dynamic characteristics of the scene
作者簡介：朱丹，女，研究員級高級工程師，院總結(jié)構(gòu)師。
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