斜拉索臨時支撐的非對稱單塔斜拉橋無應力索長研究

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中圖分類號：U448.27 文獻標志碼：A 文章編號：1005-8249（2025）02-0138-06

DOI：10.19860/j.cnki.issn1005-8249.2025.02.023

Abstract：TakingtheYongdingRiverGrandBridgeastheresearchobject，establishafiniteelementsimulationmodelof the bridgeusing Midas/Civil software，andcompletethesimulationandcalculationanalysisoftheunsupported constructioprocess of thebridgebody.Bycomparingtheresultsoffiniteelement methodcalculationsandmonitoringdata，thisstudyinvestigates the influenceof temporarysupportconstruction methodsonthecable force，unstresedcable length，bridge shape，andinternal forcesof the modelcable.Theresultsshowedthatafter multiplestretches，thecableforcestillachievedthedesiredeffet，and thechanges inbridgeshapeandstresswereafectedbythecableforce.Themeasureddataatthefialcompletionofthebridge matched he design values，ensuring that theconstruction and operationof the bridge could be safer and more efficient.

Key words： cable- stayed bridge； simulation analysis； unsupported installation； multiple tensioning

0 引言

非對稱單塔斜拉橋是一種新型橋梁形式。（剩余5913字）