| Because the subway develops rapidly in China, there are more and more noise and circumstance problems caused by the vibrations produced by subway trains, it is important to discuss the dynamic responses of structures induced by subway trains. This paper attempts to demonstrate three problems based on the No.1 subway and the new construction in Shanghai Music University. We use the famous commercial analysis software MSC.Patran & Nastran to build three-dimensional models, in order to discuss these questions associated with actual measurement data. The main research work includes 3 aspects:1. This article carried out vibration test on a road section along the No.1 subway in Shanghai, got the horizontal acceleration and vertical acceleration of different test lines and test points. Changed them to vibration grade, compared with the national standard, and analyzed the vibration frequency. Compared the accelerations aroused by trains of different ways, analyzed the regulation of vibration attenuation. The result is helpful for reference in vibration.2. Based on track vibrating acceleration data measured from Shanghai No.1 subways, the numerical simulations by using three-dimensional are carried out in order to understand the dynamic response of the ground structure near the subway line. Compared the results between two different load cases, the acceleration and vibration grade transmission law on the structure are obtained. From these work, some conclusions are drawn and can be used for the reference in vibration control and buffer design of ground structure.3. During the city development, more and more buildings are designed much closed to the subway lines. And it is necessary to research the influence of the subway vibration. In the process of vibration transmission, the acceleration will have a suddenly change on the second floor, in response to this situation, model and frequency analysis are effected. The research data is helpful for building designing and subway planning.
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