冷彎型鋼組合墻體抗剪性能試驗及理論研究.pdf

1、華僑大學(xué)碩士學(xué)位論文冷彎型鋼組合墻體抗剪性能試驗及理論研究姓名：王維申請學(xué)位級別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：高軒能20100601IIABSTRACTLowrisecoldfmedsteelframingdwellingsareonenewtyperesidentialsystempresentedgraduallyinourcountryinresentyears.Thecomposedwallmadeofcoldfmedsteel

2、framingouterwallboardisthemainloadresistantcomponentofthisresidence.Theshearperfmanceofcomposedwallisresearchedinthisthesiswhichconsistsofexperimentaltheeticalresearch.Threefullsizewalls(2.4mby3m)madeof550MPacoldfmedstee

3、lstudsplasterboardsBolivianmagnesiumboardsareresearchedinthispaper.Bytestofthreewallsundermonotonicloadwithverticalcompressionloadtheshearresistancethestructuralductilityfactofthewallsareobtained.Theexperimentalresultssh

4、owthattheshearresistanceofthewallwithobliquebracesis1.13thatofwallwithoutobliquebraces；theshearresistanceofthewallwithopeningis0.57thatofthewallwithoutopeningwhileitsductilityisbetterthanthatwithoutopening.Thefiniteeleme

5、ntsoftwareANSYSisusedtoanalysisthecomposedwall.Basedontheexperimentalresultssixfactsthataffecttheshearresistanceofthewallarediscussedwhichincludeopeningsratesteelthicknessyieldstrengthofsteelwallboardthicknessstudspacing

6、axialcompressionratio.Theresultsshowthatthechangeofsteelthicknessyieldstrengthofsteelstudspacingaxialcompressionratioaffecttheshearperfmanceofthewalllittlewhilethechangeofopeningsratewallboardthicknessaffecttheshearperfm

7、anceofthewallgreatly.Thesimplifiedmodelisusedtodeducethecalculationfmulaofthelateralstiffnessofthewall.BasedontheresultsofexperimentanalysisbyANSYSthepracticalcalculationfmulaofthelateralstiffnessofthewallunderthehizonta

8、lwindloadisobtained.Finallyseveralpossiblefailuremodesofthewallarestudiedastodeducethepracticalcalculationfmulaofthemaximumshearresistanceofthewall.Keywds:coldfmedsteelframingwallthemaximumshearresistancelateralstiffness