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單跨飛機(jī)庫(kù)結(jié)構(gòu)的減震控制動(dòng)力分析
朱丹1,趙均2,陳勝兵2,3,陳麗穎2,趙伯友1
摘 要

(1 中國(guó)航空規(guī)劃建設(shè)發(fā)展有限公司,北京 100120; 2 北京工業(yè)大學(xué)建筑工程學(xué)院,北京 100124;3 中鐵八局集團(tuán)建筑工程有限責(zé)任公司,成都 610081)
[摘要]對(duì)于構(gòu)造形式較為典型的大型單跨飛機(jī)庫(kù)結(jié)構(gòu),提出在支承柱列設(shè)置粘滯阻尼器的方案,進(jìn)行減震控制研究。按7度設(shè)防要求,對(duì)飛機(jī)庫(kù)設(shè)置與未設(shè)置粘滯阻尼器的情況,分別采用3條地震波輸入,計(jì)算在小震和中震下各自的結(jié)構(gòu)動(dòng)力時(shí)程反應(yīng),分析對(duì)比在結(jié)構(gòu)總地震作用、支承柱列柱頂位移和內(nèi)力等方面的減震效果。結(jié)果表明:在支承柱列設(shè)置粘滯阻尼器,使在地震工況下的結(jié)構(gòu)總地震作用、柱頂位移、柱剪力及彎矩等明顯減小,并改善了由結(jié)構(gòu)不對(duì)稱導(dǎo)致的整體扭轉(zhuǎn)效應(yīng),是一項(xiàng)可行且有效的減震措施。
[關(guān)鍵詞]飛機(jī)庫(kù);大跨度結(jié)構(gòu);地震反應(yīng)分析;減震控制
Dynamic analysis on seismic vibration control of a single-span hangar
Zhu Dan1, Zhao Jun2, Chen Shengbing2,3, Chen Liying2, Zhao Boyou1(1 China Aviation Planning and Construction Development Co., Ltd., Beijing 100120; 2 Beijing University of Technology,
Beijing 100124, China;3 China Railway 8th Bureau Group, Chengdu 610081, China)
Abstract:Seismic vibration control of a typical single-span hangar with viscous dampers in its column rows is studied. Based on the seismic fortification intensity of 7, seismic response timehistory analyses of the hangar structure with and without the dampers are performed for 3 different earthquake time-history inputs, according to minor and moderate earthquake levels, respectively. The total seismic actions, lateral drifts of the supporting columns and their internal forces for the structure with and without dampers are compared for evaluation of the effects of use of viscous dampers on seismic vibration reduction. The results show that those structural seismic responses mentioned above are significantly decreased and the global torsion due to the irregularity of the structure is reduced  with viscous dampers. So this seismic measure is effective and practical.
Keywords:hangar; long-span structure; seismic response analysis; seismic vibration control
作者簡(jiǎn)介:朱丹,女,研究員級(jí)高級(jí)工程師,院總結(jié)構(gòu)師,Email:dzhu5708@163.com。
參考文獻(xiàn)
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[5]陳勝兵.飛機(jī)庫(kù)結(jié)構(gòu)設(shè)置粘滯阻尼器的減震研究[D].北京:北京工業(yè)大學(xué),2008.
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