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Research on Vibration of Nearby Museum Induced by Chengdu Metro Line 2

Author: ShiLianXu
Tutor: ZhangZuo
School: Beijing Jiaotong University
Course: Bridge and Tunnel Engineering
Keywords: Metro vibration Vibration acceleration Vibration test Propagation law Numerical Analysis
CLC: TU311.3
Type: Master's thesis
Year: 2011
Downloads: 82
Quote: 0
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Abstract


With the acceleration of the country 's rapid economic development and urbanization , the urban ground traffic density is increasing , coupled with the development of floor space has been relatively saturated , urban subway transit as a use of underground space mode of transportation , greatly ease the pressure on urban transport , to promote the efficiency of the city's transportation and economic development . However, in metro construction in the ascendant at the same time , the subway train operation vibration and noise problems have become increasingly prominent . In this paper, the main object of study in the construction of the Chengdu Metro Line 2 , the 2nd line is completed designed museum in the vicinity may run effects of vibration , through analysis and research , to determine the steel spring floating slab track and vibration isolation ditch less vibration isolation measures , can effectively reduce the vibration effect . The main contents are as follows : 1 through reading and studying at home and abroad on building vibration control standards to determine the vibration control standards of the museum building ; 2 . Museum building site ground vibration propagation test and ground the - tunnel vibration transmission test , in order to force hammer excitation , by measuring the vibration acceleration , research the vertical propagation laws of different frequencies of vibration waves in the venue , at the same time , the amendments provide the parameters of the back of the numerical model ; 3 . use of finite element software ANSYS to establish contains floating slab buildings - the surrounding soil - tunnel unified finite element model , the subway museum vibration caused by the vibration acceleration in the frequency domain and time domain characteristics were studied to verify the damping efficiency and less vibration isolation measures vibration acceleration limit value does not exceed the standard of vibration control .

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CLC: > Industrial Technology > Building Science > Building structure > Structure theory to calculate > Structural Mechanics > Structural Dynamics
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