某框架结构办公楼的改造加固设计

IndustrialConstructionVol.41No.220112011412123*112231.2000932.2000933.200093。。、、。。。RENOVATIONANDREINFORCEMENTDESIGNOFAFRAMEDOFFICEBUILDINGZhangXuewei1LiuWeidong1ZhangLi2ZhaoYan2YanYinkun31.DepartmentofCivilEngineeringUniversityofShanghaiforScienceandTechnologyShanghai200093China2.ShanghaiConstructionDesign＆ResearchInstituteCo.LtdShanghai200093China3.DepartmentofArchitecturalShanghaiUniversityShanghai200093ChinaAbstractTheextension-storydesignofaframedofficebuildingisintroduced.Firstthedynamiccharacteristicsofthestructurewithdirectiveaddingstoresareanalyzedandwhatstructuralmembersshouldbereinforcedaredetermined.Weakstiffnesslowbearingcapacityanddetaildesignproblemsoftheoldframecanbefound.Secondthedesignofanti-seismicstrengtheningiscarriedoutandattentionshouldbepaidtocoordinationwiththeotherdepartments.Finallythedynamiccharacteristicsofthedesignedstructurearetestedandthatsatisfiedthevariousrequirementsofcurrentcode.Thedesignisoneofthereinforcementprogramsoftheprojectwhichcanbereferenceforotherprojects.Keywordsframestructureextension-storyaxialcompressionratiostorydriftseismicstrengthening*J50502。1986。[e-mail].2010－10－0411989—199031416m2。94.2m37.8m25.56.5m12.0m0.3m1～24.2m33.3m。－1.5m350mm×400mm250mm。120mm80mm。1。142。1Fig.1Firstfloorlayoutoftheoriginalstructure22.112420114122Fig.2FirstfloorlayoutofreconstructedstructurePKPMSATWAE。GB50009—2001《》。C20C30。Ⅳ70.1gC。2.21。2。2.32.3.1195～210kPa137.5kPa。2.3.2。。。2.3.311141.31。220.911.0。1～2。2.3.41XX+Y0.950.94+0.012YX+Y0.960.01+0.953X+Y0.090.04+0.05。0.780.9。X1/510Y1/562X1/550。33.1。200mm×200mmJAZHb－220－169703G36112m242kN3。1—2—3—3Fig.3Foundationreinforcedbyanchorstaticpressurepile3.23.2.1141～3350mm×400mm500mm×550mm350mm×400mm800mm×550mm。4—6。1—182—3—4—10@100/2005—4Fig.4Diagramofmiddlecolumnwithincreasedcross-section———1251—182—10@100/2003—4—5—6—5Fig.5Columnconnectedwiththeincreasedcross-sectionofnewstructure1—2—10@100/2003—184—5—6Fig.6Diagramofcolumnconnectedwiththeincreasedcross-sectionofnewstructure3.2.2261.8%0.9。7—9。。。。└75×5－60mm×5mm200mm400mm。3.2.33。Ⅰbf=350mmsf=500mmtf=0.16mmnf=2。1—└75×52—60×5@200/4003—└75×57Fig.7Steel-encasedcolumndiagram1—2—、3—－150mm×5mm4—└75×55—8Fig.8Nodeswithbeamandcolumndiagraminsteel-encasedpractice1—－15mm×5mm2—3—、4—－75mm×5mm5—└75×56—9Fig.9Anchoringofsteelsontopofcolumninsteel-encasedpractice3.33.3.1“”600mm126201141210。1—2—2000mm3—4—5—6—└75×57—10Fig.10DiagramofstickingCFRPstrengtheningbeam3.3.23。U11。U“”12。1—2—12@2003—－2000mm×150mm×6mm4—5—└75×511Fig.11Diagramofstickingsteelplanestrengtheningbeam3.3.3113。3.4、。1—2—└75×53—U－200×5@4004—－2000mm×150mm×6mm5—12Fig.12Diagramofmiddlesupportswithmiddleframebeam1—2—3—4—205—10@10013Fig.13Diagramofbeamreinforcedwithincreasingthecross-section、。I20aQ34514。1—I20a2—3—－400mm×200mm×10mm14Fig.14Diagramofnodewithoriginalandsteelbeam4。GB50367—2006《》fcc=0.5fc0+0.9fcfccfc012212220114121—2—4103—6@1004—5—6—9Fig.9Bracingatthebackofthetiecolumnofparapet、。2。。3GB50011—2001、、、、、GB50001—2001。。20085.12。6171.1。2GB50001—20018。3、C50。1GB50223—2008S.2GB50011—2001S.3GB50023—2009S.4JGJ116—2009S.503SG611S.6.J.200939147－49.126fc。SATWAE0.70.9。1X+Y0.980.98+0.002X+Y0.960.00+0.953X+Y0.060.01+0.05。0.870.9。X1/674Y1/7021/550。、。5。1。2。3。4。1GB50367—2006S.2GB50011—2001S.306SG311—1S.4.M.2008.5.M.2008.6.J.200931282－85.7.J.200636992－94.