地鐵運行引起的建筑室內(nèi)振動研究及減振扣件性能評價*
王平山1,張善莉2
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王平山1,張善莉2(1 上海建筑設計研究院有限公司, 上海 200041; 2 同濟大學結(jié)構(gòu)工程與防災研究所, 上海200092)[摘要]為了分析地鐵運行誘發(fā)沿線建筑物振動的特點和傳播規(guī)律,評價地鐵采取更換彈性軌道扣件對降低建筑物振動的影響,驗證基于理論分析得出的地鐵運行引起建筑物振動的特點的正確性,需要用到相關(guān)振動的實測數(shù)據(jù),而目前此方面有價值的可用實測數(shù)據(jù)卻相對匱乏,這無疑阻礙了對城市軌道交通系統(tǒng)運行引起的周圍建筑物振動影響的研究。對受上海地鐵某線路影響較為嚴重的一座住宅進行了長時間、大規(guī)模的現(xiàn)場實測,采集了大量的振動數(shù)據(jù)。通過對實測數(shù)據(jù)的統(tǒng)計分析,獲得了地鐵運行誘發(fā)沿線建筑物振動的特點和規(guī)律,總結(jié)了建筑物內(nèi)豎向振動傳遞規(guī)律,檢驗了Vanguard(先鋒)型軌道扣件的減振效果。[關(guān)鍵詞]地鐵振動; 振動特性; 彈性扣件; 現(xiàn)場實測中圖分類號:X827,TU398+.5 文獻標識碼:A 文章編號:1002-848X(2013)13-0001-06Research on the subway-induced building vibration and evaluation on the performance of the damping fastenerWang Pingshan1, Zhang Shanli2(1 Shanghai Institute of Architectural Design & Research Co., Ltd., Shanghai 200041, China; 2 Research Institute of Structural Engineering and Disaster Reduction, Tongji University, Shanghai 200092, China)Abstract: For the purpose of analyzing the feature and law of the building vibration caused by the subway, appraising the vibration reduction effect of elastic rail fastener, checking the correctness of the feature of building vibration based on theoretical analysis, the measurement of vibration is desperately needed. Currently, the available data of the vibration is rare, which hampered the study of the building vibration induced by the subway. A large-scale and long-time site measurement on a building which was greatly influenced by a subway tunnel in Shanghai was conducted. A great number of vibration data was thus obtained. The characteristic and law of the subway-induced building vibration were summarized, the vertical vibration propagation characteristic in buildings was gained and the vibration reduction effect of elastic rail fastener was testified by analyzing the vibration data.Keywords: subway-induced vibration; vibration characteristic; elastic rail fastener; site measurement*上海市科學技術(shù)委員會資助(課題編號11XD1421900)。作者簡介:王平山,博士,教授級高工,一級注冊結(jié)構(gòu)工程師,Email:pingshan_wang@xdad.com.cn。參考文獻[1]ANDERSON D C. Engineering prediction of railway vibration transmitted in buildings[J]. Environmental Engineering, 1994, 7(1):14-19.[2]JONES C J C,THOMPSON D J,PETYT M. A model for ground vibration from railway tunnels[J].Proceedings of the Institution of Civil Engineers,2002,153(2):121-129.[3]DEGRANDE G, SCHEVENELS M, CHATTERJEE P, et al. Vibrations due to test train at variable speeds in a deep bored tunnel embedded in London clay[J]. Journal of Sound and Vibration, 2006, 293(3-5):626-644.[4]王逢朝,夏禾,張鴻儒. 地鐵列車振動對鄰近建筑物的影響[J]. 北方交通大學學報, 1999,23(5):45-48.[5]葛世平. 城市軌道交通的振動和噪聲對環(huán)境的影響及其對策[J]. 城市軌道交通研究,2003,6(3):30-34.[6]何海健.地鐵列車運營引起的環(huán)境問題[J].交通環(huán)保,2003,24(3):46-49.[7]馬箔.我國鐵路環(huán)境振動現(xiàn)狀及傳播規(guī)律[J].中國環(huán)境科學,1987,7(5):4-7.[8]JGJ/T 170—2009 城市軌道交通引起建筑物振動與二次輻射噪聲限值及其測量方法標準 [S]. 北京: 中國建筑工業(yè)出版社, 2009.