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(武漢理工大學(xué)土木工程與建筑學(xué)院， 武漢 430070)

［摘要］為了研究地鐵車(chē)輛段試車(chē)線列車(chē)運(yùn)行誘發(fā)上蓋住宅的豎向和橫向振動(dòng)特點(diǎn)及傳播規(guī)律，針對(duì)國(guó)內(nèi)某地鐵車(chē)輛段試車(chē)線上蓋住宅進(jìn)行了現(xiàn)場(chǎng)實(shí)測(cè)，獲得了列車(chē)以不同車(chē)速運(yùn)行時(shí)上蓋住宅各層的豎向和橫向振動(dòng)實(shí)測(cè)數(shù)據(jù)，并分析了樓板振動(dòng)在時(shí)域和頻域內(nèi)的振動(dòng)特點(diǎn)及衰減規(guī)律，探討了不同車(chē)速對(duì)上蓋住宅樓板振動(dòng)的影響規(guī)律。結(jié)果表明：當(dāng)?shù)罔F車(chē)輛段試車(chē)線列車(chē)正常運(yùn)行時(shí)，上蓋住宅豎向振動(dòng)明顯大于橫向振動(dòng)，在上蓋住宅5層出現(xiàn)最大振動(dòng)響應(yīng)，其豎向和橫向分頻振動(dòng)加速度級(jí)峰值分別為75.71dB和56.04dB，對(duì)應(yīng)頻率均為40Hz；車(chē)致振動(dòng)沿上蓋住宅向上傳播時(shí)，各樓層的豎向和橫向振動(dòng)隨層高增大呈放大趨勢(shì)，但在靠近頂層位置出現(xiàn)振動(dòng)衰減，且豎向振動(dòng)在低層的放大效應(yīng)更明顯；列車(chē)速度對(duì)上蓋住宅的振動(dòng)響應(yīng)有較大影響，振動(dòng)響應(yīng)總體隨列車(chē)速度增大呈放大趨勢(shì)，但并非車(chē)速越大振動(dòng)響應(yīng)越大，建筑物各層樓板振動(dòng)響應(yīng)取決于不同車(chē)速下振動(dòng)波的振源荷載特性和建筑物樓板本身的動(dòng)力特性。 

［關(guān)鍵詞］地鐵車(chē)輛段；試車(chē)線；上蓋住宅；樓板振動(dòng)；現(xiàn)場(chǎng)測(cè)試；振動(dòng)加速度級(jí) 

中圖分類(lèi)號(hào)：TU375,U231 文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2021)22-0090-07

Study on field measurement of train-induced vibration of over-track residence on the testing line of metro depot 

SUN  Liangming,  LI  Guohao 

(School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070， China) 

Abstract: In order to study the train-induced vertical and lateral vibration characteristics and propagation laws in over-track residence on the testing line of metro depot, field measurements were carried out in over-track residence on the testing line of a metro depot in China. The vertical and lateral vibration data of each floor in the over-track residence were obtained at different speeds of metro trains, and the vibration characteristics and attenuation law of each floor in over-track residence was investigated in the domains of time and frequency, the influence laws of the over-track residential vibration response at different speeds were discussed. The results show that the vertical vibration of the over-track residence is obviously greater than the lateral vibration when metro trains are running on the testing lines of metro depot, the maximum vibration response occurs on the fifth floor of the over-track residence, the peaking of vibration acceleration level at different frequency in vertical and lateral direction are 75.71dB and 56.04dB respectively, and the corresponding frequency are both 40Hz. When the train-induced vibration propagates upward along the over-track residence, the vertical and lateral vibration of each floor presents an amplification trend with the increase of the floor height, but the vibration attenuation appears near the top floor, and the amplification effect of vertical vibration is more obvious in the lower floor. The train speed has a great influence on the vibration response of the over-track residence, the general trend is amplification with the increase of train speed, however, it is not that the greater the speed, the greater the vibration response, the vibration response of each floor of the building is determined by the vibration source load characteristics and the dynamic characteristics of the building floor itself. 

Keywords:metro depot； testing line； over-track residence； floor vibration； field measurement；vibration acceleration level

*國(guó)家自然科學(xué)基金資助（51608410），中央高?；究蒲袠I(yè)務(wù)費(fèi)資助（195206004）。

 作者簡(jiǎn)介：孫亮明，博士，副教授，碩士生導(dǎo)師，Email: sunliangming@126.com。