伸臂桁架工作性能研究和设计建议

43920135BuildingStructureVol．43No．9May2013518098-。。K、V。KV。、。。-TU323．4TU398A1002-848X201309-0057-05StudyanddesignsuggestionsonworkperformanceofoutriggertrussesLiuChangHuangYongjunHeYuanmingChinaConstructionShenzhenDesignInternationalShenzhen518098ChinaAbstractWiththehelpofoutriggertrussestheframe-coretubestructurewithstrengthenedstorycanformlargerstiffnesstoresisttheoverturningmoment．Workingefficiencyandloadtransfermechanismofdifferentstylesofoutriggertrusseswerestudied．TheresultsshowthatK-shapedV-shapedandherringboneoutriggertrussesaremoreefficientthanothers．TheaxialforceinchordsissmallerinK-shapedtrussandtheshearforceinthecoretubeshearwallsproducedbyV-shapedtrussissmaller．Theforcetransmissionisrelativelyreasonableandeffective．Thesettingsofoutriggertrusseshaveagreatimpactontheforcesofthecoretubeshearwallsandframecolumns．Itmightsuffermorestressconcentrationontheconditionthatthecoretubeofthestrengthenedstoreywasreinforcedtohavelargerstiffness．Theeffectofoutriggertrussesonphysicalinter-storydisplacementangleandun-physicalinter-storydisplacementanglewasanalyzed．Keywordsoutriggertrussstrengthenedstoryf[e-mail]。0--12。。12341。2-45-7。。11SAP200031232013324K5V。-315m85159231m30.270．50．73。500.75kPa1000.90kPa70.10gⅡ0.35s。。6．0m4．5m。500.75kPa1。1/m/kN/MN·m/%0.215204051．414．60.20398051．914．10.198137050.815．9K0.19920551．015．6V0.198129050.716．10.24160.41VV。K。4。25。。。123。。123。。6。3。。、、32。1285439．7V89K4562/kN/kN·m/kN/kN/kN/%6409493131280193066．32603923181145834813．768049024372058273875．26149163072434305079．82423743152384894326．7367049024872581330078．2320355143553885862．72524111500827108076．731629415721547186083．134。K7～10。3。4/kN3//%1468162390V1197112218041657109175820668517141534180014571232321267186K1445/16791566/164031563617871280128799114511372058265277952013111210。1V23K。11。“”06439．。1234。48-12。。12。。5。13。13-、。、z。6-1K、V。2KV。3。4。5。6。。1．RCJ．1999291044-47．2．J．19961742-9．3．J．201025515-19．4．J．2008382111-115．5．J．200939111-8．6．J．200737520-24．7．J．20073758-12．8．J．200636122-28．16