Vibration Serviceability and Control Research of a Steel Stair Based on Biodynamic Model

张琼; 陈凯; 杜永峰; 刘路路

doi:10.13409/j.cnki.jdpme.2018.01.021

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Vibration Serviceability and Control Research of a Steel Stair Based on Biodynamic Model

更新时间：2025-12-11

- Vibration Serviceability and Control Research of a Steel Stair Based on Biodynamic Model
- Vol. 38, Issue 1, Pages: 153-160(2018)
- 作者机构：
- 作者简介：
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- DOI：10.13409/j.cnki.jdpme.2018.01.021
  CLC： U311.3
- Published：2018
- 稿件说明：
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[1]张琼,陈凯,杜永峰,刘路路.基于人体动力学模型钢楼梯振动舒适度及其控制研究[J].防灾减灾工程学报,2018,38(01):153-160.

张琼, 陈凯, 杜永峰, et al. Vibration Serviceability and Control Research of a Steel Stair Based on Biodynamic Model[J]. 2018, 38(1): 153-160.
[1]张琼,陈凯,杜永峰,刘路路.基于人体动力学模型钢楼梯振动舒适度及其控制研究[J].防灾减灾工程学报,2018,38(01):153-160. DOI： 10.13409/j.cnki.jdpme.2018.01.021.

张琼, 陈凯, 杜永峰, et al. Vibration Serviceability and Control Research of a Steel Stair Based on Biodynamic Model[J]. 2018, 38(1): 153-160. DOI： 10.13409/j.cnki.jdpme.2018.01.021.

摘要

基于人体动力学模型研究钢楼梯人致振动舒适度问题

并利用TMD对其振动进行控制。采用移动质量-弹簧-阻尼的单自由度体系模拟人体动力学模型

将模型施加在钢楼梯有限元模型上

运用完全时程方法得到钢楼梯在人-结构动力相互作用下的动力响应

并对比分析不考虑人-结构动力相互作用时的动力响应

以峰值加速度为指标评估该楼梯的振动舒适度;对振动过大的钢楼梯

采用3种不同优化模型的TMD进行振动控制。结果表明:行人步频的倍频与结构自振频率相近时

考虑人-结构动力相互作用时结构加速度峰值多则会减小20%以上;3种不同优化模型的TMD都能够有效减小楼梯的振动响应

建议优先选用Warburton参数优化模型。

Abstract

The human induced vibration serviceability of steel stair was studied based on biodynamic model

and TMD was used to control the vibration.The single degree of freedom model of a moving mass-spring-damper system was applied to simulate the biodynamic model.This model was imposed to the finite element model of the steel stair.Full method was applied to analyze the dynamic response under human-structure dynamic interaction

and by comparing with the dynamic response without considering the interaction

peak acceleration was taken as the evaluation criterion to assess the vibration serviceability.Three different kinds of optimization models of TMD were applied to control the vibration of the stair.The result shows that if the interaction is considered

the peak acceleration is reduced by more than 20% when the multiple of step frequency of human approaches the natural frequency of the steel.All three kinds of optimization models can effectively reduce the dynamic response

and the Warburton’s optimization model is preferred.

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Keywords

references

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