A full path assessment approach for vibration serviceability and vibration control of footbridges

doi:10.12989/sem.2019.70.6.765

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	A full path assessment approach for vibration serviceability and vibration control of footbridges
	Zhu, Qiankun 1,2; Hui, Xiaoli 1; Du, Yongfeng 1; Zhang, Qiong 1
刊名	STRUCTURAL ENGINEERING AND MECHANICS
	2019-06-25
卷号	70 期号:6 页码:765-779
关键词	footbridge vibration serviceability human-structure interaction differential quadrature-integral quadrature coupled method probability procedure semi-rigid supported
ISSN号	1225-4568
DOI	10.12989/sem.2019.70.6.765
英文摘要	Most of the existing evaluation criteria of vibration serviceability rely on the peak acceleration of the structure rather than that of the people keeping their own body unmoved on the structure who is the real receiver of structural vibrations. In order to accurately assess the vibration serviceability, therefore, a full path assessment approach of vibration serviceability based on vibration source, path and receiver is not only tentatively proposed in this paper, taking the peak acceleration of receiver into account, but also introduce a probability procedure to provide more instructive information instead of a single value. In fact, semi-rigid supported on both sides of the structure is more consistent with the actual situation than simply supported or clamped due to the application of the prefabricated footbridge structures. So, the footbridge is regarded as a beam with semi-rigid supported on both sides in this paper. The differential quadrature-integral quadrature coupled method is not only to handle different type of boundary conditions, but also after being further modified via the introduction of an approximation procedure in this work, the time-varying system problem caused by human-structure interaction can be solved well. The analytical results of numerical simulations demonstrate that the modified differential quadrature-integral quadrature coupled method has higher reliability and accuracy compared with the mode superposition method. What's more, both of the two different passive control measures, the tuned mass damper and semi-rigid supported, have good performance for reducing vibrations. Most importantly, semi-rigid supported is easier to achieve the objective of reducing vibration compared with tuned mass damper in design stage of structure.
资助项目	National Natural Science Foundation of China[51668042][51868046][51508257] ; China Scholarship Council[201808620022]
WOS研究方向	Engineering
语种	英语
出版者	TECHNO-PRESS
WOS记录号	WOS:000473044900010
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/31784]
专题	土木工程学院
通讯作者	Zhu, Qiankun
作者单位	1.Lanzhou Univ Technol, Inst Earthquake Protect & Disaster Mitigat, Langongping Rd 287, Lanzhou 730050, Gansu, Peoples R China 2.Univ Exeter, Coll Engn Math & Phys Sci, Vibrat Engn Sect, North Pk Rd, Exeter EX4 4QF, Devon, England
推荐引用方式 GB/T 7714	Zhu, Qiankun,Hui, Xiaoli,Du, Yongfeng,et al. A full path assessment approach for vibration serviceability and vibration control of footbridges[J]. STRUCTURAL ENGINEERING AND MECHANICS,2019,70(6):765-779.
APA	Zhu, Qiankun,Hui, Xiaoli,Du, Yongfeng,&Zhang, Qiong.(2019).A full path assessment approach for vibration serviceability and vibration control of footbridges.STRUCTURAL ENGINEERING AND MECHANICS,70(6),765-779.
MLA	Zhu, Qiankun,et al."A full path assessment approach for vibration serviceability and vibration control of footbridges".STRUCTURAL ENGINEERING AND MECHANICS 70.6(2019):765-779.