第28卷第4期2012年7月森林工程FORESTENGINEERINGVol.28No.4July,2012整体式板桥静力荷载试验及计算方法研究姜震1,朱宜琛2,吴永胜3(1.东北林业大学,哈尔滨150040;2.中铁第五勘察设计院集团有限公司,北京102600;3.乌鲁木齐市市政工程建设处,乌鲁木齐83000)摘要:基于新施行的《公路桥梁承载能力检测评定规程》(JTG/TJ21-2011),对整体式板桥进行静力荷载试验研究,利用桥梁结构专用分析软件Midascivil建立该整体式板桥的空间板单元模型,对静力荷载试验进行模拟,并将实测挠度、应力值和荷载横向分布系数与计算值进行对比分析。分析结果表明,该桥能够满足公路-Ⅰ级汽车荷载的使用要求;实测荷载横向分布系数与理论计算荷载横向分布系数相一致,且刚接板梁法计算值略大于有限元法计算值,设计时若按照简化刚接板梁法计算荷载横向分布系数偏于安全。关键词:整体板桥;静力荷载试验;校验系数;有限元中图分类号:S773.4文献标识码:A文章编号:1001-005X(2012)04-0047-04StaticLoadTestingandComputationalMethodofMonolithicPlateBridgeJiangZhen1,ZhuYichen2,WuYongsheng3(1.NortheastForestryUniversity,Harbin150040;2.ChinaRailwayFifthSurveyAndDesignInstituteGroupCoLtd,Beijing102600;3.UrumuqiMunicipalEngineeringDepartment,Urumuqi83000)Abstract:Basedonthenewlyimplementedspecificationforinspectionandevaluationoftheload-bearingcapacityofhighwayandbridge(JTG/TJ21-2011),thestaticloadtestingwascarriedoutonthemonolithicplatebridge.TheMidascivilsoftwarewasusedtoconstructthespatialplateunitmodelandsimulatethestaticloadtesting.Themeasureddeflection,stress,andloadtransversedis-tributionfactorswerecomparedwiththecalculatedvalue.TheanalysisresultsindicatedthatthemonolithicplatebridgecanmeettheoperatingrequirementofstandardhighwaylevelIload,andthemeasuredloadtransversedistributionfactorswereinlinewiththecal-culatedvaluesandthevaluesderivedbyrigid-connectedbeammethodwasslightlyhigherthanthatofthefiniteelementmethod.Therefore,itissafetytousetherigid-connectedbeammethodtocalculatetheloadtransversedistributionfactorduringdesign.Keywords:monolithicplatebr...