不同吊點(diǎn)位置與吊索夾角下 23m 鋼梁受力分析

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中圖分類號：U445.4 文獻(xiàn)標(biāo)志碼：A 文章編號：2095-2945（2025）18-0097-05

Abstract：Inorder tounderstandtheinfluenceofthechangesintheliftingpointpositionsandtheanglesoftheslingson thetresstateofthesteelbeam，theMidasGensoftwarewasusedtoestablish finiteelementmodelsofstelbeamswith four differentliftingpointpositionsandslingangles，andthestressanddeformationanalysisduringthehoistingprocesswascaied out.Theresearchresultsshowthatwhen thedistancebetweenthelfting pointsandtheendnodesgraduallyincreases，the deformationofthecantileversectionincreases，andthedeformationinthemid-spanofthesteebeamdecreases；whentheangle oftheslingincreases，thestressofthesteelcabledecreases，thetensiononthestelcabledecreases，andthedeformationof thestelcablealsodecreasesInSchemeII，themidlesectionandthecantileversectionofthebeamsimultaneouslyachieve basicallythesamedeformationandstressduringthehoisting processandareinaelativelysmallstate，whichissafercompared totheotherthreecases.Theresearchresultsprovideabasisfortheoptimizationofthehoistingschemeofthesteelbeamin thesupportingprojectandhavereferencesignificancefortheoptimizationofthehoistingschemeofthesteelbeaminother engineering projects.

Keywords： steel beam; hoisting construction; lifting point position; finite element analysis;sling angle

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