不同吊点位置与吊索夹角下 23m 钢梁受力分析

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中图分类号：U445.4 文献标志码：A 文章编号：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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