万益大桥拼宽技术研究

打开文本图片集

中图分类号：K928.78 文献标志码：A 文章编号：2095-2945（2026）03-0048-04

DOI：10.19981/j.CN23-1581/G3.2026.03.013

Abstract：Theconstructionofhighways isthe foundationof national economicdevelopment.Nowadays，thenationalhighway network hasbecomemoreperfect，andtherenovationandexpansionofexistinghighwayshasbecomeakeyresearchpoint.In ordertostudythestressdistributionofthebeambodyoftheupperstructureofthebridgeafterwidening，thispaperisbased onanactualprojectmodel.Byanalyzingthefiniteelementmodelofthenosefork bridgeafterwidening，theconstitutive relationshipofdiferentbeampiecesafterwideningiscomparedandanalyzed，sothatitcanserveasareferenceforsimilar engineering projects in the future.

Keywords：bridgewidth;finiteelement model;constitutiverelationship;bridgesuperstructure;nosebifurcation

随着经济的发展，当前较多高速公路已无法满足现行交通量需求，为了提升运输效率，大规模高速公路开始改扩建投资建设，而桥梁改扩建是高速公路的重中之重。（剩余3124字）