Quantitative evaluation of vibration serviceability of pedestrian brigde under different walking speed

doi:10.6052/j.issn.1000-4750.2015.01.0066

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Quantitative evaluation of vibration serviceability of pedestrian brigde under different walking speed
	Zhu, Qian-Kun 1,2; Li, Hong-Nan 1; Du, Yong-Feng 2; Zhang, Qiong 2
刊名	Gongcheng Lixue/Engineering Mechanics
	2016-10-01
卷号	33 期号:10 页码:97-104
关键词	Bridge decks Dynamic loads Probability Speed Cumulative probabilities Dynamic load factor Individual variability Population variability Quantitative evaluation Time domain Vibration serviceability Walking frequencies
ISSN号	10004750
DOI	10.6052/j.issn.1000-4750.2015.01.0066
英文摘要	The quantitative evaluation of the vibration serviceability problem of pedestrian bridges under different walking speed is studied, and the evaluation results are developed in a probabilistic form. The walking load in different time domains under different walking speed is established, considering the individual variability of pedestrian parameter and population variability of a dynamic load factor. A first-order vertical vibration-based benchmark footbridge under the action of walking loads is selected as the research object according to the suggestion of ivanovi. The acceleration peak value of a pedestrian bridge under different walking speed is obtained by applying the pedestrian load in a random time domain under different walking speed to the benchmark footbridge, and the results are corrected to attain the corresponding probability of each peak value after correction as well as the cumulative probability that is less than or equal to a specific peak value. The results show that: when the walking frequency is consistent with the frequency of a pedestrian bridge, the peak value reaches its maximal value and increases linearly with the increase of waking speed; when the pedestrian walks slowly, the vibration serviceability is the highest; when the pedestrian walks quickly, the vibration serviceability is middle; when the pedestrian walks at an intermediate speed, the vibration serviceability is the lowest. © 2016, Engineering Mechanics Press. All right reserved.
语种	中文
出版者	Tsinghua University
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/112961]
专题	土木工程学院
作者单位	1.Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian; Liaoning; 116024, China; 2.Institute of Earthquake Protection and Disaster Mitigation, Lanzhou University of Technology, Lanzhou; Gansu; 730050, China
推荐引用方式 GB/T 7714	Zhu, Qian-Kun,Li, Hong-Nan,Du, Yong-Feng,et al. Quantitative evaluation of vibration serviceability of pedestrian brigde under different walking speed[J]. Gongcheng Lixue/Engineering Mechanics,2016,33(10):97-104.
APA	Zhu, Qian-Kun,Li, Hong-Nan,Du, Yong-Feng,&Zhang, Qiong.(2016).Quantitative evaluation of vibration serviceability of pedestrian brigde under different walking speed.Gongcheng Lixue/Engineering Mechanics,33(10),97-104.
MLA	Zhu, Qian-Kun,et al."Quantitative evaluation of vibration serviceability of pedestrian brigde under different walking speed".Gongcheng Lixue/Engineering Mechanics 33.10(2016):97-104.