悬臂结构地震响应分析的广义单自由度模型研究
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

国家自然科学基金资助项目(5197080363)


Study on the Generalized Single Degree of Freedom Model for Seismic Response Analysis of Cantilever Structures
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    针对有限元方法存在计算时间过长的缺点,不适用于需要多次响应分析的结构抗震性能评估问题。进行了悬臂结构线性地震响应分析的广义单自由度模型研究,提出了多项式形函数和基于多项式形函数的单自由度模型,并通过与有限元分析结果的对比分析,调查了基于多项式形函数的单自由度模型对典型地震波激励下结构响应分析的有效性。结果表明:提出的基于多项式形函数的广义单自由度模型平均误差为7.20%,为提高建模准确性,建议采用水平集中荷载施加方法进行多项式形函数参数估计。

    Abstract:

    The finite element method has the disadvantage of being time-consuming and is not suitable for evaluating the seismic performance of structures that require multiple response analyses. A genera-lized single degree of freedom model for linear seismic response analysis of cantilever structures was stu-died, and the polynomial shaped functions and single degree of freedom models based on the polynomial shaped functions were proposed. The effectiveness of the single degree of freedom model based on the polynomial shaped functions for structural response analysis under typical seismic wave excitation was investigated through comparative analysis with the finite element analysis results. The results show that the average error of the proposed generalized single degree of freedom model based on polynomial functions is 7.20%. To improve the modeling accuracy, it is recommended to use the method of applying horizontal concentrated loads for polynomial function parameter estimation.

    参考文献
    相似文献
    引证文献
引用本文

吴承宇,何军.悬臂结构地震响应分析的广义单自由度模型研究[J].河北工程大学自然版,2024,(1):17-22

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2023-04-23
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2024-03-07
  • 出版日期: 2024-03-25