Analysis Of Train-Induced Building Vibration And Vibration Reduction Schemes

More and more buildings are established next to railways because of the expansion of city size and population. As the life quality requirements of residents rises every day, we pay more attention to environment influence caused by rail traffic system. The invironmental vibration and noise caused by traffic have been listed as one of the Seven Wonders of the World environmental ahzards. So it’s extremely necessary to further study structural vibration caused by traffic and effective vibration isolation measures.In the research field ofbuilding-vibrations caused by railway traffic, there are many different methods to calculate the train vibratoty lods, besides, correct load input mechanism has a lot of controversy. In this paper, one relatively simple and practical way is introduced based on the modification of previous study; With the help of numerical simulation, the author determine a reasonable input method based on the structural reaction differences and provide a basis for further research.Many scholars began to research measures of vibration isolation early in60s, such as empty ditch, underground continuous wall, etc. Setting up isolation groove along the railway can effectively reduce the train vibration effects on surrounding buildings. In view of the multiparameter effect isolation ditch, this paper adopts orthogonal experiment to research the influences of each parameter. This paper introduces the block mechanism of isolation trench firstly, with the help of numerical simulation analysis to analys the effect of every parameter, finally, the author proposes several new form isolation gloves and analyzes its isolation effect.This paper introduces the structure optimization design concept to the field of building vibrations caused by railway traffic for the first time, the author use APDL to programme in order to seek the best combination of each trench parameter.