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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)

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