基于能量法分析考虑纵向刚度分布的钢-混组合梁自振特性

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振动与冲击 ›› 2021, Vol. 40 ›› Issue (10) : 67-72.

论文

孙琪凯1,2，张楠1,2，刘潇1,2，陶晓燕2,3，郑宇1，霍明宇1,2

作者信息 +

Free vibration characteristics of steel-concrete composite beams considering the longitudinal stiffness distribution based on the energy method

SUN Qikai1,2，ZHANG Nan1,2，LIU Xiao1,2，TAO Xiaoyan2,3，ZHENG Yu1，HUO Mingyu1,2

Author information +

文章历史 +

摘要

对于考虑剪力键纵向分布不均匀或梁体变截面的钢-混组合梁，为了分析其自振特性，基于Hamilton原理并利用分区变分法，建立了考虑相对滑移影响的钢-混组合梁运动控制微分方程。给出了简支-简支、固支-自由、固支-简支和固支-固支等四种常见边界条件下自振特性的计算方法。以两孔考虑纵向刚度分布的钢-混组合梁为例，计算了其基频和一阶振型，并与ANSYS软件数值分析和实验测试结果进行了对比分析。结果表明，三者结果基本一致，说明该研究的方法可以用于分析考虑纵向刚度分布的钢-混组合梁自振特性。

Abstract

Free vibration characteristics of steel-concrete composite beams considering the longitudinal stiffness distribution based on the energy method

导出引用

孙琪凯1,2，张楠1,2，刘潇1,2，陶晓燕2,3，郑宇1，霍明宇1,2. 基于能量法分析考虑纵向刚度分布的钢-混组合梁自振特性[J]. 振动与冲击, 2021, 40(10): 67-72

SUN Qikai1,2，ZHANG Nan1,2，LIU Xiao1,2，TAO Xiaoyan2,3，ZHENG Yu1，HUO Mingyu1,2.

Free vibration characteristics of steel-concrete composite beams considering the longitudinal stiffness distribution based on the energy method

[J]. Journal of Vibration and Shock, 2021, 40(10): 67-72

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