高速公路改擴建中 65m 鋼箱梁跨河安裝關(guān)鍵施工技術(shù)研究

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中圖分類號：U445 文獻標(biāo)志碼：A 文章編號：2095-2945（2025）24-0178-04

Abstract：Duringthereconstructionandexpansion processof highways，whenbuildinganew bridge tomettraficneedsin navigablewaters，itisnecessarytotakeintoaccountnavigationsafetyandthestructuralstabilityanddurabilityoftheewly builtbridge，whichundoubtedlyfacesmanytechnical problemsandchalenges.Thispapertakestheprojectofanew65-meter steelboxgirdercrossingnavigablewatersinthereconstructionandexpansionprojectofafour-lanetoeight-lanehighwayin Hunanasanexample，anddeplyanalyzeskeylinkssuchasbeam design，segmentsegmentation，hoisting，welding，and painting，andsummarizesasetofconstructiontechnologiesandtechnicalpointssuitablefornewstelboxgirdersinhighway reconstructionandexpansionprojects.Thisachievementcanprovidepracticalexperienceandtechnicalreferenceforsimilar highway bridge reconstruction and expansion projects in the future.

Keywords：highwayreconstructionandexpansion;stelboxgider;constructiontechology;technicalpoint;constructioncholgy

在橋梁施工領(lǐng)域中采用鋼箱梁結(jié)構(gòu)，國內(nèi)外學(xué)者和工程技術(shù)人員已進行了大量研究與實踐。（剩余4989字）