实用斜支撑电梯井内架施工工艺

1009-6825201226-0118-022012-07-021981-100000。TU731．2A132。2m×2．5m1．5m×2．2m3．15m。、、。。。22m3kN。31。→→→→→→。12、。图1电梯井内脚手架立面图4m2000髿鬀2200221150°2。10cm櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅。。5。、100mm20mm10mm。1．1m。6。75%。。7。。1．J．20103612155-156．Discussionontheconstructiontechnologyofpost-pouringsubsidencebeltWANGHeng-mingShanxi5thConstructionEngineeringCompanyTaiyuan030013ChinaAbstractThepaperintroducesthedefinitionandsettingmethodsofpost-pouringsubsidencebeltinconcreteengineeringmainlydiscussesthepouringandqualitycontrolmeasureofpost-pouringbeltconcreteandsummarizesconstructionmattersofpost-pouringbeltsoastoeffectivelypreventunevensubsidenceofbuildings．Keywordsconcretepost-pouringsubsidencebeltfunctionsconstructiontechnology·811·382620129SHANXIARCHITECTUREVol．38No．26Sep．2012。4m2m25004m220015001900a1—1b2—2图2脚手架剖面图44．11JGJ130-2001。2GB50009-2001。4．248×3．5Hs6m4lb1．7m1．35m2m0．25m3。1QP10．35kN/m231．9×1．4=2．66m2QP20．14kN/m22×1．9m+1．4m×0．2m=1．32m20．037kN/m。2QK2kN/m21。4．34．3．1。→→→→→→。4．3．21。2。33。a．。图3斜立杆上横杆的受力简图NGK=1.365kNNqK=1.333kN2507007002501900G1=1/44×1．5+2+4×6+2×4×0．037=0．528kNG2=1/4×3×0．35×2．66+0．14×1．32=0．837kNNGK=G1+G2=1．365kNNqK=1/4×2．66×2=1．33kN。b．。M=FL=1．2NGK+1．4NqKL=0．875kN·mσ=M/W=0．875×106N·mm/5．08×103mm3=172N·mm2＜f=205N·mm2。。445。a．3。F=1/3×2×1．2NGK+1．4NqK=1/3×2×1．2×1．365+1．4×1．33=2．333kN。FFx=F×cosθ=2．333×cos500=1．5kNFy=F×sinθ=2．333×sin500=1．787kNN1=0．92kNN2=2．08kN。图4斜立杆受力图M1=1.426kN·mM2=0.208kN·mFyFyFF50°15502100350图5斜立杆弯矩图b．。MX=1．426kN·m。N+2M/L＜Nd。N+2M/L=1．787×2+2×1．426/4=4．287kN。rm'=1．591+η/1+1．17η=1．1。λ=L0/iL0=μHμ1λ=250。φ=0．117。Nd=φAf/0．9rm'=0．117×4．89×102×205/0．9×1．1=118kN＞4．287kN。。1．J．2010366146-147．2．J．2003S195-97．ConstructiontechnologyoftheinternalframeofpracticalinclinedbearingelevatorshaftYUANLe-haiChinaRailwayConstructionGroupCo．LtdBeijing100000ChinaAbstractTakingahigh-riseresidentialbuildinginShanxiprovinceasanexamplethroughimprovingthetraditionalconsole-typeorsuspension-typescaffoldthepaperappliestheinclinedbearingmethodsoastoreducethesettinganddismantledifficultiesofthescaffoldwhichimprovestheconstructionefficiency．Andthenitdescribesthespecificconstructionmethodsandoperationpointswhichhasaccumulatedexperiencefortheconstructionofhigh-riseelevatorshaft．Keywordsinclinedbearingdiaphragmwallrodstabilitystrength·911·382620129