点支式幕墙索桁架支承结构安全性检测方法

43220131BuildingStructureVol．43No．2Jan．20131212111000392100124。。、、、。。TU351TU394A1002-848X201302-0045-03Safetydetectionofcabletrusssupportsysteminpoint-supportingcurtainwallsZuoYongzhi1LuQiaozhi2LiuYumin1HuoDa2ZhengJingjie11BeijingBuildingConstructionResearchInstituteBeijing100039China2CollegeofArchitectureandCivilEngineeringBeijingUniversityofTechnologyBeijing100124ChinaAbstractTheshortageofdetectionmethodforpoint-supportingcurtainwallsmakestheevaluationofthesafetyofthesecurtainwallsverydifficult．Prestressedcabletrusssystemisatypicalsupportingforminpoint-supportingcurtainwalls．Damagefactorstoglasscurtainwallsweresummarizedincludingconnectorfailurecompressionbardamagecableprestresslossoffsetofnodecoordinateandcableanchoragefailure．Onthebasisofthesefactorsasafetydetectionmethodofcabletrusssystemforcurtainwallswasproposed．Takingonecurtainwallprojectasanexamplethepresentsituationofthecurtainwallwasdetectedaccordingtovariousdamagefactorsafiniteelementmodelwasfoundedtoanalyzeitsbearingcapacityandthesafetyofthecurtainwallwasalsoevaluatedwhichverifiedthefeasibilityofthemethod．Keywordspoint-supportingcu[e-mail]。0、1。。《》JGJ102—20032“5”。、。。、。、。1。、。1。1。。20133。、、、。。、、、。45。261。。2、。3。、、。。4。5。3。。。。1、、、。2。3、。4、。5。44.132.9m28.8m。。。14Q345146×10245×14159×10。23。4.2。。64432．23。。4.3。4ANSYS10.0。Link10。Link8Beam4。4。。。4.44.4.11。11.0×21.0×。211.35×+1.4×0.6×21.2×+1.4×+1.3×0.5×31.2×+1.4×0.6×+1.3×0.5×+1.2×0.2×。4.4.211。5。4.54.5.11/2001/250。=7.832mm＜9600/200=48mm=17.137m＜29900/200=149.5mm=6.06mm＜8100/200=40.5mm。6.749mm1/250。4.5.2。42.8kN50.8kN15.3kN。《》CECS1272001“2.5Nt=Ntk/2.5”。14138.97kNNt=Ntk/2.5=138.97/2.5=55.6kN。。26.2MPa100742013138μ4.044.044.283.162KHB1.4≤K＜1.551.4≤K＜1.61B。3。。1．J．200622149-52．2．-J．2009253451-455．3．J．200925161-65．4MILLERDK．LessonslearnedfromtheNorthridgeearthquakeJ．EngineeringStructures1998204-6249-260．5．J．19961712-13．6．J．2007249111-139．7．J．200926164-73．8．-D．2010．9．J．201025S1331-338．10．-J．200829170-74．11．D．2009．12．J．2005351064-68．13．D．2008．47－40.6MPaQ345、、215MPa。4.6、。。5。。。1．M．2006225．2JGJ102—2003S．2003．3．J．200131659-62．4．J．2003349670-671．5．J．200232759-61．6．D．2009．001