大学本科外文翻译

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1、大连理工大学外文翻译受弯钢框架结点周期性行为Cyclicbehaviorofsteelmomentframeconnections学院（系）：建筑工程学院专业：工程管理学生姓名：____学号：___________指导教师：_________完成日期：大连理工大学DalianUniversityofTechnology受弯钢框架结点周期性行为Cyclicbehaviorofsteelmomentframeconnections1.Introduction  Aimedatevaluatingthestructuralperformanceofreduced-b

2、eamsection(RBS)connectionsunderalternatedaxialloadingandlateraldisplacement,fourfull-scalespecimensweretested.ThesetestswereintendedtoassesstheperformanceofthemomentconnectiondesignfortheMosconeCenterExp-ansion under the DesignBasisEarthquake(DBE)andtheMaximumConsideredEarthquake(MC

3、E).PreviousresearchconductedonRBSmomentconnections[1,2]showedthatconnectionswith RBSprofilescanachieverotationsinexcessof0.03rad.However,doubtshavebeencastonthequalityoftheseismicperformanceoftheseconnectionsundercombined axialandlateralloading.TheMosconeCenterExpansionisathree-stor

4、y,71,814m2(773,000ft2)structurewithsteelmomentframesasitsprimarylateralforce-resistingsystem.AthreedimensionalperspectiveillustrationisshowninFig.1.Theoverallheightofthebuilding,atthehighestpointoftheexhibitionroof,isapproxima-tely35.36m(116ft)abovegroundlevel.Theceilingheightatthee

5、xhibitionhallis8.23m(27ft),andthetypicalfloor-to-floorheightinthebuildingis11.43m(37.5ft).ThebuildingwasdesignedastypeIaccordingtotherequi-rementsofthe1997UniformBuildingCode.–23–受弯钢框架结点周期性行为TheframingsystemconsistsoffourmomentframesintheEast–Westdirect-ion,oneoneithersideofthestair

6、towers,andfourframesintheNorth–Southdirection,oneoneithersideofthestairandelevatorcoresintheeastendandtwoatthewestendofthestructure[4].Becauseofthestoryheight,thecon-ceptoftheCoupled-GirderMoment-ResistingFramingSystem(CGMRFS)wasutilized.Bycouplingthegirders,thelateralload-resisting

7、behaviorofthemomentframingsystemchangestoonewherestructuraloverturningmomentsareresistedpartiallybyanaxialcompression–tensioncoupleacrossthegirdersystem,ratherthanonlybytheindividualflexuralactionofthegirders.Asaresult,astifferlateralloadresistingsystemisachieved.Theverticalelementt

8、hatconnectsthegirde