摘要
研究了剪切效应对工字形梁弯曲挠度的影响问题。利用梁的剪应变与梁的轴向位移、弯曲挠度的微分关系,推导得到了工字形梁的弯曲微分方程,对弯曲微分方程积分可得考虑剪切效应的弯曲挠度表达式。算例分析表明,剪切效应对工字形梁弯曲挠度有较大影响。
The influence of shear effect on the bending deflection of I-shape beam is researched in the paper.Based on the differential relationship between the shear strain of the beam and the axial displacement and bending deflection,the bending differential equation of the I-shape beam is derived.By integrating the bending differential equation,the expression of the bending deflection is obtained with the shear effect taken into account.The examples show that the shear effect has a great influence on the bending deflection of I-shape beam.
作者
王骞弘
吴晓
Wang Qianhong;Wu Xiao(Hunan City University,Yiyang413000,Hunan,China;Hunan University of Arts and Science,Changde415000,Hunan,China)
出处
《工程与试验》
2022年第4期16-18,共3页
Engineering and Test
基金
2019年湖南省教育厅项目(19B383)。
关键词
剪切效应
梁
弯曲
挠度
shear effect
beam
bending
deflection
