Research Of Metro Vibration On Building And Its Application For Building Comfort Evaluation

City subway not only take traveling convenience to people, but also give thesurrounding environment some adverse effects. Subway vibrations willeventually passed to the neighboring building through the tunnel and thesoil,and effect in the comfort of humans in the building, even people’s healthy.There are lots of research about the subway vibration now, while most of themdoesn’t contact both measurement, modeling and theories. This thesis willcombine the measured data and the finite element models to research the subwayvibration overall,and explore the degree of comfort of construction by differentparameters of the model based on finite element analysis results. Its main tasksare:Measure the subway vibrations of Yi Tian buliding ground floor,andanalysis the time domain and frequent domain of measurement results.It findsthat the vertical vibration response is much larger than the horizontal vibrationresponse,and the frequent of response is mainly focus in40~80Hz,withincreasing of distance from the subway centerline low frequency will appear.We use sine wave to simulate the subway load, and establish Yi Tiantwo-dimensional finite element modeling with ANSYS. Compare the modelresults with the measured results,we can find that both in the time domain andfrequency domain fit very well.It means modeling and simulation of subwaytrain load vibration response can be studied.Through modeling and simulation of the previous chapter subway trainloads, using ANSYS establish the typical structure of three-dimensional finiteelement model and analysis of tunnel depth, soil properties and architecturalforms, the centerline distance from the subway, basic forms, floor position sixdifferent parameters subway vibration response changes. Analysis found that thevibration damping effect on the subway in decreasing order of the distance fromthe subway centerline, soil properties and tunnel depth, while the structure of thefloor position and architectural forms, forms the basis of the effects of vibrationon the subway is not obvious.Thesis discussed the problem of Green Architecture, and use sensitivity to predict and assess the subway vibration,as a subway vibration comfortevaluation, and as a recommendations by green architecture environmentvibration.