广东省博物馆新馆大跨度悬挂结构悬臂桁架性能研究

40720107王华林1,李娜1,陈星1,蔡健2,向前1(1,510010;2,510640)[],,,,:,,,,[];;ResearchonconcretefilledsteeltubularprestressedsuspensiontrussinGuangdongProvincialMuseumWangHualin1,LiNa1,ChenXing1,CaiJian2,XiangQian1(1TheArchitecturalDesign&ResearchInstituteofGuangdongProvince,Guangzhou510010,China;2SchoolofCivilEngineeringandTransportation,SouthChinaUniversityofTechnology,Guangzhou510640,China)Abstract:ConcretefilledsteeltubularprestressedsuspensiontrussisoneofthemostimportantmembersinthelargespansuspensionstructureinGuangdongProvincialMuseum.Thecasesofapplyingprestressincompressionmembersandpouringconcreteintensionmemberscaneffectivelyimprovethestiffnessandstrengthofthestructure,andsolvetheproblemsoflargeverticaldisplacementandtheseismicsecondlineofdefenceissues.Theoverallspaceanalysisofthewholebuilding,thelocalspaceanalysisofthetoptruss,theexperimentofasingletruss,andtheengineeringmeasurementwereintroduced.Themonitoringresultsofthetoptrussshowthattheconstructionsequencehasacertaininfluenceonthestructure,whichisinanallowablescope.Keywords:largespansuspensionstructure;concretefilledsteeltubularprestressedtruss;engineeringmeasurement:,,,Email:[e-mail]0[13],,,,,(MIDAS,),8(ANSYS,Beam188),,,,,,,,,(),,111,,8,(),,,1Q345,15001000,35~60mm,20~60mm:2015001000,35~60mm,35~60mm;12001000,35~60mm,35~60mm:8001000,35mm,35mm31152,fptk=1860Nmm2C501,2::;:;:;:20;:20121,,12%,11%,,,,14%~17%,,23%,12,ANSYSBeam188,Shell63,Link83~6,1mm139.125122.318102.162149.966129.055MPa282.980()235.228()251.756()221.583()246.555()169.122()246.166()227.785()240.964()175.325()3MPa4mm5N6N!mm,,2[4]211∀7,16214m,:1432148;1432146;1432148,14321486(),1432146:1432146,1431717,1431718,1432148,1431716,143114641524(fptk=1860Nmm2),2,2,82kNfck=68Nmm2,7,822,21:#,∃787(%,&,∋,()T1~T4,T2,T3P1=P4=276kN1P1=P4=276kN,,0,215,P1=P4=400kN,0,3,,023,(7):1):1350kN,1,,,2;22,280kN,3,,2)555kN,()2,,,,,615kN,()276kN,;15(400kN),,[3],,;15,;,2(+,-),12%,,(615kN)(550kN)1122,mm21525.680.4332.831.7655.2919.65-27.73-0.36-30.46-1.54-39.92-11.3722.621.0529.491.7959.2827.553,,,,,,:1),;2)5,;3)4;4),85%,100%,3,;5),,;6)15%,,,,31(9),510,225,),,,,11910∗1132321+45+121212,13,,1(),2,,,,322∗,14,,,323,,185%,3,12+4513+1214∗52,5330%85%33EMkN12362755269827242726726852634270426748285628762883287292894283329052877,:1),,;2),,,4(1)8,(),,;((42)23beLe(Le,7l1,l2,c)t,,kbeLet(8),,k01=1154beLet007(5)9PnPA()ct,,,,(1)~(4)0785,0163,,8kbeLet9PnPAct3(1),(2),;,(3),,(t,c),;(t,c),(4),65%(5),[1]YAMMCH,CHENGJJR.Behavioranddesignofgussetplateconnectionsincompression[J].JournalofConstructionalSteelResearch,2002,58(58):11431159.[2]YAMMCH,CHENGJJR.Experimentalinvestigationofthecompressivebehaviorofgussetplateconnections[R].StructuralEngineeringReportNo.194,UniversityofAlberta,1993.[3]YAMMCH,CHENGJJR.Analyticalinvestigationofthecompressivebehaviorandstrengthofsteelgussetplateconnections[R].StructuralEngineeringReportNo.207,UniversityofAlberta,1994.[4]SHENGN,YAMMCH,LUVP.Analyticalinvestigationandthedesignofthecompressivestrengthofsteelgussetplateconnections[J].JournalofConstructionalSteelResearch,2002,58(11):14731493.[5]AISC.Specificationforstructuralsteelbuilding[S].Chicago(IL):AmericanInstituteofSteelConstruction,2005.[6]GB50017,2003[S].:,2003.[7],.[J].,1987(8):1927.[8].[J].,1987(2):1022.[9],.[R].:,2008.[10],,,.[J].,2009,39(7):3336.[11]LUTZDG,LABOUBERA.Behaviorofthingussetplatesincompression[J].ThinWalledStructures,2005,43(5):861875.(23)12%),,11%6%,,,,(2)8,,,2,15%,23%2%,(3),,,,[1],,,.[J].,2007,37(9):4347.[2],,,.[J].,2007,37(9):4851.[3],,.[J].,2007,37(9):5256.[4],,,.()[R].2006.42