摘要
传统的工字钢梁通常由顶板、底板和中部的平腹板焊接而成,由于腹板承受较大的竖向荷载,极易出现弯曲变形,导致整体刚度下降,结构承载受到较大影响。为了改善这一情况,研究了波形钢腹板工字梁在竖向荷载作用下的弯曲特性,通过有限元分析、理论计算和试验研究,得出不同荷载值作用时相应的应变值和挠度值,并与普通工字梁进行对比。结果表明,波形钢腹板工字梁具有更大的抗弯极限承载力,能较大程度地改善传统工字钢梁挠度过大的问题。
The traditional I-steel beam is usually welded from the top plate,bottom plate and the middle of flat web.As the web bears a large vertical load,the bending deformation is easy to occur,resulting in the overall stiffness decline.And the structural load is greatly affected.In order to improve this situation,the bending characteristics of corrugated steel web I-beam under the vertical load are studied.The corresponding strain value and deflection value under the action of different load values are obtained through the finite element analysis,theoretical calculation and experimental research,and are compared with the ordinary I-beam.The results show that the corrugated steel web I-beam has a greater ultimate bending capacity,and can improve the problem of excessive deflection of traditional I-steel beams to a great extent.
作者
仁丽杰
林紫馨
姬厚真
黄佩
冯伦
REN Lijie;LIN Zixin;JI Houzhen;HUANG Pei;FENG Lun
出处
《城市道桥与防洪》
2020年第11期82-84,95,M0010,共5页
Urban Roads Bridges & Flood Control
关键词
波形钢腹板
直腹板
工字钢梁
弯曲变形
corrugated steel web
straight web
steel I-beam
bending deformation
作者简介
仁丽杰(1998-),女,本科在读,专业为土木工程。
