Vibration analysis of a modern building caused by metro and research on vibration reduction measures

被引：0

作者：

Yang W.-G. ^{[1
]}

Li H. ^{[1
]}

Xi J.-K. ^{[1
]}

机构：

[1] School of Civil Engineering, Beijing Jiaotong University, Beijing

来源：

Zhendong Gongcheng Xuebao/Journal of Vibration Engineering | 2023年 / 36卷 / 01期

关键词：

diaphragm wall; process vibration isolation; vibration analysis; vibration isolation effect; vibration source damping;

D O I：

10.16385/j.cnki.issn.1004-4523.2023.01.016

中图分类号：

学科分类号：

摘要：

The vibration caused by subway will adversely affect the adjacent buildings. Based on the background of a modern historical protection building along the newly-built subway line, a fine three-dimensional finite element model of "tunnel-soil-protection building" is established based on relevant parameters and measured data, and the vibration response of the building during subway operation is analyzed. The damping effect is quantitatively analyzed and the parameters are optimized from two aspects of vibration source damping and process damping. The results show that the vibration of the building exceeds the limit when no vibration reduction and isolation measures are taken. The vibration reduction effect of the optimized track type is the most remarkable. When the elastic long sleeper track is used, the Z vibration level of the structure can be reduced by 8.2 dB and 11.2 dB, and the Z vibration level can be reduced by 14.9~18.9 dB by using steel spring floating plate track. Among the vibration isolation measures in the process, the performance of the vibration isolation wall is the most sensitive to the characteristics of the wall material, followed by the depth and thickness. The properties of the wall material have a great influence on the vibration isolation performance, among which the EPE foam wall has the best vibration isolation effect, which can reduce the Z vibration level of the structure by 10.6 to 11.5 dB, and the peak horizontal velocity is about 75%. Increasing the thickness of the wall can improve the vibration isolation performance to a certain extent, but the vibration isolation effect is not significant. Finally, a fast prediction method for calculating the isolation effect of diaphragm wall is proposed, which can provide a reference for the vibration analysis of similar projects and the design of vibration reduction measures. © 2023 Nanjing University of Aeronautics an Astronautics. All rights reserved.

引用

页码：147 / 158

页数：11

共 28 条

[1]

Antonio G, Francesco P., A model for the mechanical behaviour of the railway track in the lateral plane, International Journal of Mechanical Sciences, 146-147, pp. 303-318, (2018)

[2]

Zheng Guo-chen, Qi Ai, State-of-the-art on vibration law and control of buildings adjacent to metro, Earthquake Engineering and Engineering Vibration, 38, 5, pp. 93-102, (2018)

[3]

Zhang Y S, Zhang N., Model for predicting the vibrations of historical timber buildings due to traffic loads and its experimental validation, Journal of Low Frequency Noise, Vibration and Active Control, 38, 2, pp. 1-13, (2019)

[4]

Miguel A G, David M V, Luis A I., Monitoring and identification of vibration frequencies on a portion of México City Metro Line 12, Advances in Civil Engineering, 1, pp. 1-13, (2019)

[5]

Ma Meng, Liu Wei-ning, Ding De-yun, Influence of metro train-induced vibration on Xi'an bell tower, Journal of Beijing Jiaotong University, 34, 4, pp. 88-92, (2010)

[6]

Qin Chong, Study on the influence of excitation modes on the evaluation of vibration mitigation performance of floating slab track in metro, (2019)

[7]

Huang Wei-bo, Yang Yang, Feng Yan-zhu, Et al., Research advances of vibration propagation law and vibration reduction measures of rail transit, Noise and Vibration Control, 36, 6, pp. 101-105, (2016)

[8]

Lakusic S, Ahac M., Rail traffic noise and vibration mitigation measures in urban areas, Technical Gazette, 19, 2, pp. 427-435, (2012)

[9]

Wilson H, Wong B, England D., Tuned mass damper for rail noise control, Noise and Vibration Mitigation for Rail Transportation Systems, (2012)

[10]

Jin Hao, Zhou Xin, Yang Long-cai, Analysis of decay rate of rail using egg fastening system and tuning mechanism of tuning rail damper, Journal of Tongji University(Natural Science), 47, 2, pp. 193-200, (2019)

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