城轨交通大跨度钢桁斜拉桥轨道工程监测技术研究-邓卫博

255/2017MODERNURBANTRANSIT6U4481.1621222.5m+445m+190.5m24m15m13.468m188m+312m+240m+80m2436.99m15m16m226MODERNURBANTRANSIT5/20171.21435mm2.132.22.2.12.2.22.2.31L/900L2L/8003L/400041.55+0/50mm5mm/m621.572mm2mm4275/2017MODERNURBANTRANSIT216212524286314.11#2#5#6#3#4#5#1#2#4#123P1456P2123428MODERNURBANTRANSIT5/201774.284.34.44.4.1P1P22P112122360424mm2.53mmN1/350008mm/3/41/23/41/41/23/41/41/23/4295/2017MODERNURBANTRANSITmml4.4.2240m112360625mm2180810mm2mm5mm360m1m3m0.5mm238mm4.4.35m121mm5mm2mm1mm[1].[D].2009.[2].[J].200211145-48.[3].[J].201221384-384.[4].[J].2016674-76.[6].[J].200821263-66.[7].[J].20134159-161.[8].[J].200042-4.[9].[J].2002162-64.2017-01-03MonitoringTechnologyofLong-SpanSteelTrussCable-StayedBridgeinTransitDengWeibo,ZhangTao,LiZhaoxingAbstract:Throughimplementationofthekeyresearchworksofthetrackengineeringmonitoringtechnologyconcerningthelong-spancable-stayedbridgesontheDongshuimenYangtzeRiverbridgeandQiansimenJialingRiverbridge(Liang-JiangQiao)forChongqingmetroline6,thelinearmonitoringcontrolandadjustmentbeforelayingtrackarerealized.Withthefiniteelementanalysis,bridgebodystructuredeformationanddeflectioninthesecondphaseperiodunderdeadloadareeliminated,thestabilityofmonolithictrackbedlayingmeetsoperationalrequirements,andthispaperputsforwardthecompleteintegratedconstructiontechnologyprocess.Keywords:urbanrailtransit,long-spansteeltrussgirder,cable-stayedbridge,monitoringtechnology