竖向_水平荷载联合作用下单桩性状模型试验研究

43620133BuildingStructureVol．43No．6Mar．2013-*112212000922200092。--。。TU473.1A1002-848X201306-0092-03Modeltestsonthebehaviorofasinglepileundervertical-horizontalloadLiangFayun1LiaoChencong1MaoLei2BaiWulong21DepartmentofGeotechnicalEngineeringTongjiUniversityShanghai200092China2CollegeofCivilEngineeringTongjiUniversityShanghai200092ChinaAbstractInfluenceofverticalandhorizontalloadsshouldbeconsideredwhenthepilefoundationsweresubjectedtolargehorizontalloads．Accordingtothepossibleworkingconditionsoftheactualpilesasimplifiedmodeltestwasestablishedonthesimilarruleswiththeoriginalmodel．Thestressanddeformationofthepileunderverticalandhorizontalloadswereinvestigatedbymodeltests．Someusefulconclusionsforresearchandengineeringpracticewereachievedfromthemodeltests．Theresultsshowthatverticalloadhasanegativeinfluenceonthedisplacementandmomentofthepileunderhorizontalload．Keywordsverticalloadhorizontalloadcombinedeffectsinglepilemodeltest*。[e-mail]。0、、、-。1。-Meyerhof23。Anagnostopoulos4。56。7。-。。-。11.11.2m×0.8m×1.2m××0.6m6mm10mm8。、。。1。436．-11.2920mm3mm3.0GPa。700mm600mm。120.0±0.1Ω×=3mm×2mm2.08±1%。2。21.3②1.65g/cm3。80mm。c=4.8kPaφ=36．7°w=7.1%。1.4。。。。ε+ε－εε=ε+－ε－1MM=EIεb02b0EI。EId2xdz2=－M3xz。22.1--《》JGJ106—2003。5。34PHPV。1100N2100N60N360N200N4200N120N5120N500N。3-2.1.13224。3920134-2.1.24235100N200N1mm200N300N1.56mm300N500N4.51mm。。2.25100N、0200N。6120N、250300400N。5PH=100N566PH=120N。PV0200N21.4%PV300N400N46.7%。31。2。3。。1．M．．1984．2MEYERHOFGGYALCINAS．BehaviourofflexiblebatterpilesunderinclinedloadsinlayeredsoilJ．CanadianGeotechnicalJournal1993302247-256．3MEYERHOFGG．BehaviourofpilefoundationsunderspecialloadingconditionsJ．CanadianGeotechnicalJournal1995322204-222．4ANAGNOSTOPOULOSCGEORGIADISM．InteractionofaxialandlateralpileresponsesJ．JournalofGeotechnicalEngineeringDivisionASCE19931194793-798．5．J．198714268-81．6LIANGFYCHENHBCHENSL．InfluencesofaxialloadonthelateralresponseofsinglepilewithintegralequationmethodJ．InternationalJournalforNumericalandAnalyticalMethodsinGeomechanics201236161831-1845．984920137B3CFRP。B4CFRP400με。B4CFRP。8B3B44《》GB50005—200320057ωl/250。l=3600mmω=14.4mm。CB1～CB314.4mm8.78.18.0kN8.3kN。B1～B414．4mm10.214.012.316.5kN13.3kN60%。。5171%～93%83%648%～83%。62%19%～107%58%。260%。3。。4。1．CFRPJ．20114110123-125．2．J．20124331153-1159．3YUWCHUNGKCHANS．ColumnbucklingofstructuralbambooJ．EngineeringStructures2003256755-768．4GHAVAMIK．BambooasreinforcementinstructuralconcreteelementsJ．Cement＆ConcreteComposites2005276637-649．5．J．2010316195-203．6．J．201244136-42．7GB50005—2003S．2005．2005．947．、J．200830121796-1804．8．J．201032101603-1609．9．J．20072991307-1313．89