斜彎鋼箱梁橋支反力計(jì)算的影響因素分析

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中圖分類號(hào)：U448.28 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：2095-2945（2025）20-0099-04

Abstract：Withtherapiddevelopmentofurbanconstruction，thenumberofurbanelevatedbridgesisincreasing.Forbridges withlargespansandsmallradi，stelboxgirderschemesareoftenused.Comparedtoconcretebeams，steeboxbeamshavea lighterselfweightandsmalerverticalreactionforce.Inurbanelevatedbridgetransportation，severevehicleloaddeviationoften occurs.Topreventtheoverallstructuralinstabilityandoverturningofsteeboxbeams，theaccuracyofverticalreactionforceis particularlyimportant;Duetheectsofcentrfugalforceandtemperatureiseandfallthehorzontalsupportreactionforef curvedbridgesisgreaterthanthatofstraightbridges.Thehorizontalforceaffctsthesizeandreinforcementofthelower structure，whichinturnafectstheostofthelowerstructure.Thisstudyanalyzesandanalyzesthemodelingfactorsthathavea significantimpactontheverticalandhorizontalsupportreactionforcesofinclinedcurvedsteelboxgirders.Therelevant experience and conclusions can provide some reference for engineers.

Keywords：inclinedcurvedsteelboxgirder bridge;modeling calculation;supprtreaction；urban viaduct；influencingfactors

由于斜彎鋼箱梁橋本身特點(diǎn)，導(dǎo)致其支反力不能像直橋那樣容易計(jì)算，本次依托某項(xiàng)目，采用MIDAS軟件進(jìn)行了建模計(jì)算，著重講述了恒載、邊界條件的正確模對(duì)支反力計(jì)算結(jié)果的重要性。（剩余2663字）