外文翻译---防屈曲支撑在亚洲的地位

《外文翻译---防屈曲支撑在亚洲的地位》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、附录1英文文章翻译（原文）Stateoftheartofbuckling-restrainedbracesinAsiaQiangXieDepartmentofStructuralEngineering,TongjiUniversity,Shanghai200092,ChinaReceived3September2004;accepted19November2004Abstract：Thispaperpresentsasummaryofbuckling-restrainedbraces(BRBs).BRBsshowthes

2、ameloaddeformationbehaviorinbothcompressionandtensionandhigherenergyabsorptioncapacitywitheasyadjustabilityofbothstiffnessandstrength.ResearchanddevelopmentsofvarioustypesofBRBswithdifferentconfigurationsinAsia,especiallyinJapan,areintroduced.Analysesandexperimen

3、tsareillustratedtoshowtheconditionsnecessaryforrestrainingsteelbracesfrombuckling.SomekeyissuesofBRBconfigurations,suchasgapanddebondingprocessingbetweencorebracesandencasingmembers,contractionallowanceinBRBsandnecessaryclearancesbetweenrestrainingpanelsandsurrou

4、ndingframes,BRBprojectionstiffeningapproachestopreventitfrombuckling,arealsodescribed.Basedoninitialdeflectionsofcorebraces,bothstiffnessandstrengthrequirementsofencasingmembertopreventbucklingofcorebracearegiven.Applicationsforbothnewhigh-risesteelbuildingsandth

5、eseismicretrofitofexistingbuildingsshowgoodprospectsofusingBRBs.©2004ElsevierLtd.Allrightsreserved.Keywords:Steelframe;Buckling;Buckling-restrainedbraces;Cyclicloadingtest;Damper;Hystereticbehavior1.IntroductionLateraldisplacementsonstructuralbuildingshavebeenofg

6、reatconcernforengineers.Inordertominimizetheeffectofearthquakeandwindforcesbraceshavebeenusedsuccessfully.However,whenthebracesaresubjectedtolargecompressiveforcestheyexhibitbucklingdeformationandshowunsymmetricalhystereticbehaviorintensionandcompression,andtypic

7、allyexhibitsubstantialstrengthdeteriorationwhenloadedmonotonicallyincompressionorcyclically,asshowninFig.1(a).Ifbucklingofasteelbraceisrestrainedandthesamestrengthisensuredbothintensionandcompression,theenergyabsorptionofthebracewillbemarkedlyincreasedandthehyste

8、reticpropertywillbesimplified.Theserequirementsmotivateresearchersandengineerstodevelopanewtypeofbrace,buckling-restrainedbrace(BRB).TheconceptofBRBissimple:re