高强箍筋约束足尺混凝土柱抗震性能试验研究_邵运达_李振宝_解咏平

4520201510BuildingStructureVol．45No．20Oct．2015*1211110012421000394-、、、。。TU375.3A1002-848X201520-0057-06Experimentalstudyofseismicperformanceoffull-scaleconcretecolumnswithhigh-strengthstirrupShaoYunda12LiZhenbao1XieYongping11KeyLaboratoryofUrbanSecurityandDisasterEngineeringofMinistryofEducationBeijingUniversityofTechnologyBeijing100124China2TheOpenUniversityofChinaBeijing100039ChinaAbstractInordertostudytheseismicperformanceoffull-scaleconcretecolumnswithhighstrengthstirruplowcyclicloadingtestsof4specimenswerecompletedandloaddisplacementhystereticcurvewasmeasured．Thefailuremodehystereticbehaviorskeletoncurveductilityandenergydissipationcapacitywereanalyzed．Thetestresultsshowthatwhenhighstrengthsteelbarisusedasstirrupthefull-scaleconcretecolumnhasgoodductilityandlargeplasticdeformationcapacitystrongenergyconsumptionanddissipationcapacitywithexcellentseismicperformance．Keywordsseismicperformancefull-scaleconcretecolumnhigh-strengthstirrup*5107801151408378。[e-mail]。0。1-4。、56。200×200～300×3007。8。4、、。11.14450mm×450mm2020mm1800mm4。C4025mmHＲB400HSHB1000。11。1/%/%HA-75a12181.5077@75A1.030.589aHA-50a12181.5077@50A1.540.883aHB-75a20141.5207@75B1.540.883aHB-75b20141.5207@75B1.540.883bABAB1ab1.4。1.2。28d45.1MPa28d34.3MPa2。201512fy/MPafu/MPaεy7111512005828×10－6143675581836×10－6184445622221×10－61.33000kN1000kN。2。21.42600kN。。。Δy2Δy3Δy4Δy5Δy…。a2b5。。1.5。。TSDXY。22.14HA-75a3。150kN200kN、2Δy5Δy8Δy10Δy。2.2。-4。4854520．3HA-75a4-1-50%。2--。85%2HB-75b5。50%。。34HA-50aHB-75aHA-75aHB-75b。2.3hehe。he5。he5he=S)ABC+S)CDA2πSΔOBE+SΔODF1he6he。61952015。2、。9PΔVH6782.4-7。98。ODOADMAADAYY85%。3ΔyΔu、θuμ。3Δy/mmΔu/mmθuμ=Δu/ΔyHA-75a15.6152.181/343.34HA-50a15.0456.121/323.73HB-75a15.8455.431/323.50HB-75b17.1051.931/353.0431/35～1/32101/50。3HB-75bHB-75ab5。2.5P-ΔP-Δ。M=PΔ+VH。9P-ΔPΔVHMPΔVH。9P-ΔPΔP-Δ50mmP-Δ20%P-Δ40%。2.64Vu11Vu'。11P-Δ。4410%HB-75b1.311.5311。064520．4Vu/kNMu/kN·mVu'/kNMu'/kN·mVu/Vu'Mu/Mu'HA-75a330.63700.70284.13511.441.161.37HA-50a318.23686.31284.13511.441.121.34HB-75a327.02694.21259.82467.671.261.48HB-75b336.36705.74259.82467.671.311.53。2.72.7.110HA-50aHA-75a。11HA-50aHB-75aHA-50aHB-75a。10HA-50aHA-75a11HA-50aHB-75a10HA-50aHA-75aHA-50aHA-75aHA-75aHA-50aHA-50a。11HA-50aHB-75aHB-75aHA-50a。10111、HA-50a、HA-75a2、HB-75aHA-50a。2.7.212HB-75aHB-75bHB-75aaHB-75bb。12HB-75aHB-75b。HB-75bHB-75aHB-75bHB-75aHB-75b。12HB-75aHB-75b31。2。316201511。4。1．J．2007333144-146．2CUSSONDPAULTＲEP．Stress-strainmodelforconfinedhighstrengthconcreteJ．JournalofStructuralEngineering19951213468-477．3．J．200545127-12．4KENTDCPAＲKＲ．FlexuralmemberswithconfinedconcreteJ．ASCEJournaloftheStructuralDivision19719771969-1990．5．J．201144129-17．6．J．20094241-9．7．J．2002325746-749．8．J．200926314-19．9．J．200936126-12．10GB50011—2010S．2010．11GB50010—2010S．2011．26