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《基于不設(shè)橫向加勁板的箱型柱鋼框架中節(jié)點(diǎn)試驗(yàn)研究》由會(huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、重慶大學(xué)碩士學(xué)位論文不設(shè)橫向加勁板的箱型柱鋼框架中節(jié)點(diǎn)試驗(yàn)研究姓名:景其增申請(qǐng)學(xué)位級(jí)別:碩士專業(yè):結(jié)構(gòu)工程指導(dǎo)教師:龍莉萍20070430重慶大學(xué)碩士學(xué)位論文中文摘要摘要箱形柱與工字形梁剛性連接節(jié)點(diǎn),是鋼框架結(jié)構(gòu)中常用的一種節(jié)點(diǎn)形式。為有效傳遞梁端彎矩,梁上、下翼緣對(duì)應(yīng)柱腹板位置一般應(yīng)設(shè)置橫向加勁板。然而,當(dāng)梁柱節(jié)點(diǎn)受力較小或構(gòu)造上不能滿足時(shí),有時(shí)也不設(shè)加勁板。雖然我國《鋼結(jié)構(gòu)設(shè)計(jì)規(guī)范》GB50017.2003針對(duì)H形柱梁柱節(jié)點(diǎn)分別給出了粱受拉翼緣和受壓翼緣處柱腹板不設(shè)加勁板時(shí)柱翼緣及腹板需滿足的條件,但對(duì)于箱形柱而言
2、,由于其受力模型有本質(zhì)上的差異,因而不能直接套用。本文的目的:就是通過梁柱節(jié)點(diǎn)靜力破壞試驗(yàn),取不設(shè)置橫向加勁板的箱形柱與工字形鋼梁連接的中柱節(jié)點(diǎn)為研究對(duì)象,對(duì)節(jié)點(diǎn)的受力性能作了如下二部分研究工作:①通過3個(gè)不設(shè)置橫向加勁板的箱形柱框架全焊接中節(jié)點(diǎn)縮尺試件的靜力破壞試驗(yàn)。對(duì)連接節(jié)點(diǎn)的剛度即柱翼緣板側(cè)向變形M一△2,3進(jìn)行了測(cè)試,并著重研究梁柱節(jié)點(diǎn)的兩種破壞模式,分析了節(jié)點(diǎn)板域的應(yīng)力分布。最后,建立在試驗(yàn)數(shù)據(jù)的綜合處理分析的基礎(chǔ)上得出結(jié)論,供進(jìn)一步對(duì)此類節(jié)點(diǎn)的分析和研究參考。②通過對(duì)梁柱全焊接中節(jié)點(diǎn)試件的有限元模擬,對(duì)該試
3、件的破壞模式、節(jié)點(diǎn)板域剛度以及應(yīng)力分布規(guī)律進(jìn)行了對(duì)比分析。關(guān)鍵詞:箱形柱,工字形鋼梁,框架中節(jié)點(diǎn),M一△2.3曲線,有限元分析重慶大學(xué)碩士學(xué)位論文英文摘要ABSTRACT‰middlejointofthesteelfl”amosconstrIIctedbybox-columnands:teelHbeamiscommonlyusedinsteel矗amegffuctRres.Inordertotransferthebendingmomentattheendofthebeameffectively,the舡齜塔”rsest
4、i伍mgplatesshoedbepr講惻atthes黜eheightpositionofthecolumnwebandthebeanflange;However,thestiffmgplateswouldnotbeprovidedifthebendingmomemissmalloriftheconstructionmodeofthejointdoesnotrequiled.Forthiskindsofjoints,therequirementwhichshouldbemetbythebeamflangesintens
5、ionandcolumnflangesincompressionandwebshavebeenpfesentedbythecurrentChinesestcelStructureDesignCode,Butthespecificationrigirallycome8丘omthemechanicsandanalysisofthebean-columnjointofHsectioncolumn,andcannotbeusedinthedesignofthebox-columnbecausetherea聆intrinsica
6、ldifferencesinmechanicsmodesbebV啪thetwojoints.1kpurposeofthispaperistoanalysisthecapacitypc娟mn粕ceofthejointsbydestructiveexperimentsofthemiddlejointswhichconnectthebox-colunmandsteelHbeamofthesteelflameandnostiff'ragplatesa塢妒ovidedinthebox-column.Twopartsresearc
7、hworkhavebeencarriedoutinthispaper.①mstaticdestructiveexperimentsof3scalesizemiddlejointswithoutstiffmgplatesofsteelfl"auleconstructedbox-columnandsteelHbeama塢completed.Intheexperiments,thelateraldeformationM-A2.3ofcolumnflangepanel,orthestiffnessofconnectionjoi
8、ntsor@measured.Twokindsofdestructionmodesofbeam-columnconnectionsareanalysis.Thestressdistributioninplateareaofthejointsareanalyzed.Finally,theconclutionbased011thesy