薄壁空心墩非線性地震反應(yīng)分析.pdf

1、西南交通大學(xué)碩士學(xué)位論文薄壁空心墩非線性地震反應(yīng)分析姓名：樊增彬申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：橋梁與隧道工程指導(dǎo)教師：孫林夫2002.6.1亙童塞鎏盔蘭塑主旦塞圭蘭焦笙塞蘭!!戛ABSTRACTForsimplesupportedbeambridge，whenearthquaketakesplace，beam‘SfallingisthemaindestructiveformTheenergyduetOthebeam’Sfallingisove

2、rwhelmingThisimpactwilldogreatharmtOthesubstructureThebeam‘Sfalling，mainlybecausethedisplacementofthepier’Stopsupportingthebeammakesthespanbecomegreater，orthepier’Sdisplacementbringsthebeamchangeitsposition，whichmakesitc

3、omeawayfromthepier’StopAlsoithasveryimportantsignificancetootherstructureformsuchascontinuousbeamThoughthecontinuousbeamscanrestricttheirdisplacementforeachother，andthebeam’Sfallingwillhardlyhappenthedisplacementofthepie

4、r’Stopwillmakeagreatinfluenceontheinternalforce‘Sdistributionwhichwillcausethestructure’SpartialdamageItwilltakecrucialeffectonthestructure’sresistancetotheearthquaketoresearchontheseismicresponseofpierWiththedevelopment

5、ofrailwayconstruction，itneedsmoreandmorehighbridgesinmountainareas，SOthepierbecomeshigherthanbefore，anditbecomesfromsolidtOhollowPresently，ithaslittleresearchOilthethinwallhollowpier’Svibrationalcharacteristicespeciallyo

6、nnonlinercharacteristic，andithasscarcelyreferredinthebridge’5criterionaboutearthquakeresistance，SOithasgreatsenseonfulfillmentoftheourbridge’scriteriontoresearchthethin—wallhollowpier’SseismicresponseSothedeterministican

7、alysismethodforseismicresponseofthinwallhollowpierisdiscussedinthispaper，findthecharacterofthestructure’Slinearandnonlinearresponsewhenearthquaketakesplace，thepurposeistoprovideareferencetoengineerdesigndepttofinishtheir

8、specialprogramofanalyzingpier’Sseismicresponsesomeadvicehavebeengivenforpier’Sdesignthefollowingtaskhasbeenfinished：(1)Analysisthepier’Sseismicforcetheoryanddynamicsmethod(2)Resarchthecomputationalmodelandmethodofthethin