大吨位小半径环向预应力设计和施工技术分析

112(1.,430074;2.,454000):,,,.:;;;;:U448.27:U443.38:A:1000-5730(2002)03-0024-04,,,,.,[1].,,,.,.48+204+460+204+48=964m,33.5m(),,3%,2%.R=40000m.Y,,,,163.5m.,,,.1163.5m,Y,,7.0m()4.5m(),1.2m,0.6m.,600t,1.1/mm1.1,,U.,.,U,U8%14%,,,,U(2).2U/mm:2002-07-28.:(1965-),,;,(430074).193()Vol.19No.320029J.ofHuazhongUniv.ofSci.&Tech.(UrbanScienceEdition)Sep.2002©1995-2003TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.1.21215,1.5m,240t,VSL,20cm.,,,.,,.32,16,5,.22.1,2.56m,(74.5)m.4.961.9,351mm,60mm.,.,59.6MPa,63.5MPa,3.353.5104MPa;15.24mm,1860MPa.,.2.22.2.1,,.,25%P025%P40%P60%P80%P100%P.2.2.24YDC50002200,2000kN,2000kN,16000kN.TDS303,,.,.2.2.3,10000kN,20,.12000kN0.06mm,.16000kN,,0.18mm,50150cm,.,2.0,1.8.3a..,,,.,,.,,,.b..,,,.,,,.,,,U.c..,(1),,.d..(),.1/25%P40%P60%P80%P100%P1901152513823161231832228310219117151422516523381103221292615223173204769822124261452116823556792310021124241442044.1+kl=-ln(P/P),(1),P;P;(rad);l;;k.U44%,k=0.003;0.18,(2)[2,3].523:©1995-2003TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.2kk0.0030.175[2]0.00150.20.25[3]0.0020.0030.200.26,U,31#,,0.18,0.18.3/kN525125923772463310807133613791/%413644442/%343252504.2L=li0iEpdx=PiliEpA,(2),Pi;Ep;li;A.k89mm.3ULP.:,50%,,50%,4%10%;25%,12%20%.3,.a.U,,,.b.,,.c.,,.d.,,.4.37%.17%21%,,6mm,7m15%,.U,.4.4,,,.a.,,,.b.,,,.c.,,.d.,23cm,.,.a.,.b.=0.18,k=0.003;,,k,0.18.c.,,,20%,62()2002©1995-2003TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved..d.7%,4%,,.e.,,.f.,.g.,.[1].[J].,1999,(4):13-17.[2]JTJ041-2000,[S].[3]JTJ041-2000,[S].DesignandConstructionAnalysisofLarge2tonnage2and2small2radiusAnnularPrestressedForceWANGDe2hua1ZHUHong2ping1LIUChun2jie2(1.CollegeofCivilEng.&Mechanics,HUST,Wuhan430074,China;2.TheRoadBurea.,Jiaozuo454000,China)Abstract:Theprototypemodelexperimentforthecable2tower2anchorzoneofJunshancable2stayedbridgewith460mmain2span2lengthisconducted.Moreover,theactualeffectofapplicationoflarge2tonnage2and2small2radiusannu2larprestressedforceisanalyzed.Therelatedproblemsintheexperimentandconstructionareobjectivelydiscussedandsomereasonablecommentsarefinallypresented.Keywords:cable2tower;largetonnage;smallradius;prestressedforce;constructiontechnique(19)[2],.()[J].,2002,(1):37-41.[3]BeerS.DiagnosingtheSystemforOrganizations[M].Wi2ley:Chichester,1985.[4].VSM[J].,2001,(6):749-753.[5].VSM[J].,1992:301-305.[6].VSM[J].,1992:310-318.[7].[M].:,1994.OrganizationDesignforIndustrializationofOldHousingAreasRenewalandRenovationBasedonVSMWANGWen2xiong1WANGXiao2ming1CHENXing2hai1(1.CollegeofCivil&Mechanics,HUST,Wuhan430074,China)Abstract:Accordingtotherequirementoftheorganizationviabilityandcontinuousdevelopmentofindustrializationofoldhousingrenewedandrenovation,theeffectualnessoftheimportanttheoriestotheorganizationdesignofindus2trializationofoldhousingrenewalandrenovationareanalyzedsuchasvarietybalance,recursionandadaptivemech2anismbasedonViableSystemModel,thedistinguishingaimatorganizationofindustrializationofoldhousingrenew2alandrenovationisputforward,andtheredesignsystemmodeloforganizationstructureofindustrializationofoldhousingrenewalandrenovationisconstructed.Thesubsystemoftheorganizationviabilityofindustrializationcom2posedbythesystemsofoperation,coordination,informationandpolicedecisionareestablished.Keywords:ViableSystemModel(VSM);oldhousing;renewalandrenovation;industrialization723:©1995-2003TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.