The Analysis Of Seismic Response Of City Subway Station Underground Structure

So far earthquake has been one of the most harmful natural disasters besettingmankind.In order to reduce the losses caused by the earthquake, one of the main ways isto do seismic engineering, and especially underground structures. In particular, inallusion to the analysis of seismic response of underground structure, domestic andoverseas researches have been still in the stage of study at present, and there are nooff-the-peg design specifications. However, nowadays subway station has been stronglybuilt in the country’s biggest cities, therefore, making an analysis about seismicbehavior of subway station structure has the important practical significance formaintaining the safety of urban life.This article is set in Shenyang industrial museum three-layer island form subwaystation structure, summarizing and analyzing the domestic and overseas designprocedures of seismic damage and seismic resistance both underground structure and theground structure. With the aid of the finite element software ADINA, with regard toseismic response analysis of subway station structure do the following research work.The static analysis of three-layer island form subway station structure was to calculatethe structure unfavorable place. According to the seismic response coefficient curve,spectrum response analysis of numerical model was to figure up the structure story driftwith the action of seismic response spectrum; The dynamic analysis of three-layer islandform subway station structure was made. Selecting three different seismic waves accordwith site condition, make the analysis on subway station structure, mainly consist ofinternal force, story drift and stress, with the effect of horizontal direction frequentlyearthquake, afterwards make a comparison with the results of three seismic waves;Theacceleration peak value of these three seismic waves were input on the basis of equalproportion amplitude. Make the displacement response analysis about this subwaystation structure, in addition, make a comparison with the results under the situation offrequently earthquake; Selecting the vertical seismic waves from El-centro wave, do theresearch about seismic response analysis of subway station with the action of horizontaland vertical coupling, in addition, make a comparison analysis with the results ofvertical impact.