Curve Of City Viaduct Shaking Table Test And Seismic Response Analysis

Linear type curve,the viaduct structure smoothly and can better solve differentBridges and bridge between the traffic transportation and connection between theground traffic problem,to solve or ease traffic problems.Frequently in recent years dueto the earthquake,the city viaduct is highly dependent on people of lifelineengineering,once damaged when an earthquake will generate huge losses.For seismicresearch has important significance of the viaduct,especially curve viaduct is morecomplex,at present the study of curved bridge in the way of theory,remains to be furtherin-depth study.This paper analyzes the current curve viaduct research background andsignificance,discussed the bridge structure,the main form of earthquakedamage,including bridge upper structure,the bridge bearings and the lower structure,andother forms of concrete damage.Discussed the structural features existing bridge seismicstandards,the curve of the bridge,bridge seismic research status of the curve and bridgeseismic design methods.Combined with the national natural science fund project,design and productioncurve of the viaduct entity model,and analyzed the earthquake simulation shaking tabletest.Elaborates on the shaking table test preparation and test related process includingmodel making,vibration,and the strain gauge arrangement,etc,and analyze the test dataprocessing analysis of curve bridge structure dynamic characteristics and seismicperformance.In this paper,by using large-scale finite element software MIDAS FEA calculationmodel established entity unit,using time history analysis method of “C”shaped curve viaduct calculation model were analyzed,and discussed the model seismic responseunder different ground motion input,and comparing with the shaking table testmodel,the accuracy of the simulation entity model and finite element model arevalidated.Viaduct respectively in this paper,the “people”glyph curve by using responsespectrum method and time history analysis method two kinds of methods analyze anddiscuss its seismic response law,and carries on the comparison to the results of the twomethods,the calibration model simulation accuracy,and can be used as a referencebefore the shaking table test of the simulation analysis.Through to the “people”glyph curve viaduct ground motion input in differentangles,comparative analysis of the variable cross-section shaped beam and straightbeam and the curve beam seismic performance of different forms of beam,discusses the“people”glyph curve viaduct the most unfavorable earthquake response.