上下楼梯时人行荷载模型参数的试验研究

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振动与冲击 ›› 2016, Vol. 35 ›› Issue (21) : 220-228.

论文

上下楼梯时人行荷载模型参数的试验研究

杜永峰1，刘路路1，朱前坤1,2，陈凯1

作者信息 +

Experimental investigation on parameters of pedestrian load model up and down stairs

DU Yong-feng1，LIU Lu-lu1，ZHU Qian-kun1,2，CHEN Kai1

Author information +

文章历史 +

摘要

对试验获得的900组三向楼梯荷载时程，采用快速傅里叶变换，统计出各阶谐波动力荷载因子的分布规律并指出相位角的分布具有很大的离散性。采用小波变换得到单条荷载曲线的时频图，可以反映出人在行走过程中行走频率的变异性。最后将上下楼梯时人行荷载与已完成的楼板荷载就行走频率、幅值等参数进行比较，并将上楼梯与下楼梯的荷载参数进行比较，发现上楼梯时的人行荷载至少是楼板上荷载的150%，下楼梯时是楼板荷载的300%之多。

Abstract

The experiment has obtained 900 groups of three-dimensional loading curves human induced on flexible staircases, using the Fast Fourier transform, to figure out the distribution of each harmonic dynamic loading factor and indicate the discrete distribution of phase angle. And then using the wavelet transform could get a single load time-spectrum plot, reflecting the variability of frequency during human walking. Finally, the excitation human induced on floors was made a comparison with the load up and down stairs in terms of walking frequency, amplitude and other parameters, as well as the comparison between ascending staircases and descending staircases. So conclude that the pedestrian load up the stairs is at least 150% of load human induced on the floor and down the stairs is more than 300%.

导出引用

杜永峰1，刘路路1，朱前坤1,2，陈凯1. 上下楼梯时人行荷载模型参数的试验研究[J]. 振动与冲击, 2016, 35(21): 220-228

DU Yong-feng1，LIU Lu-lu1，ZHU Qian-kun1,2，CHEN Kai1. Experimental investigation on parameters of pedestrian load model up and down stairs[J]. Journal of Vibration and Shock, 2016, 35(21): 220-228

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