欢迎来到天天文库
浏览记录
ID:33013100
大小:3.28 MB
页数:86页
时间:2019-02-19
《s形曲线桥梁地震模拟振动台试验分析》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、西安建筑科技大学硕士学位论文(5)Throughthedetailedanalysistothedynamiccharacteristics,accelerationtimehistorycurve,displacementtimehistorycurveandstraintimehistorycurveofthemodelbridge,theseismicperformanceoftheS-shapecurvedbridgeisresearched.(6)Throughanalyzingthefunctio
2、nofthestopperandanti-collisionfacilities,findingthatweshouldpaymoreattentiontopassiveenergydissipationmeasuresandmethodsaswellasavoidsimplyaddingstrengthtoresistearthquakeforcurvedbridgeseismic.Anti-drop-beamdeviceofthecurvedbridgeshouldnotonlyhavesufficien
3、tdeformationandenergydissipationcapacity,butalsoshouldhaveenoughstiffness,strictlypreventingexcessivedisplacementofthebeamleadtothepiereccentricforceistoolargeandunstable.(7)Theconcept"beamfloatingseismicsystem"isproposedandappliedtothemodelbridgetest.Byana
4、lyzingthestraindataofpiersreinforcedwefoundthatthemodelbridgereinforcedstillnotyieldunderstrongearthquake,whichshowsthat"beamfloatingseismicsystem"isverybeneficialtoimprovetheseismicperformanceandseismiccapacityofthecurvedbridge.Keywords:S-shapedcurvebridge
5、;multi-pointexcitation;shakingtabletest;seismicperformance;floatingearthquakeresistancesystemPaperType:BasicresearchFoundationitems:ThepaperissupportedbytheNaturalScienceFoundationProjectofChina(ProjectID:51078306):“Thecatastrophlicmodelandmultipointmultidi
6、rectiondynamictransfertheoryofhigh-curvedlongbridge”;theBasicResearchProgramfundedprojectsofNaturalScienceinShaanxiprovince(ProjectID:2013JQ7007):“LargecomplexdynamicmodelandsuccessoroverpassbeamstructureboundarysimulationSystem”;thespecializedResearchFundf
7、orDoctoralProgramofhigherEducationofChina(ProjectID:20106120110004):“Theseismiccatastrophicmodelandbehaviortransfertheoryofhigh-curvedlongbridge”.万方数据西安建筑科技大学硕士学位论文目录1绪论........................................................................................
8、...............................11.1地震灾害简介................................................................................................11.2国内外桥梁震害现象及分类研究..............................................
此文档下载收益归作者所有