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	Modal parameters identification research of the concrete beams considering the temperature influence
	Di, Shengkui; Wang, Lixian
	2009
会议日期	June 5, 2009 - June 6, 2009
会议地点	Hong Kong, China
关键词	Beams and girders Concrete testing Damage detection Modal analysis Parameter estimation Temperature Vibration analysis Ambient vibrations Environmental temperature Frequency Modal identification Modal parameters identification Temperature changing Temperature impact Temperature influence
页码	375-382
英文摘要	Aimed at considering the influence of ambient temperature on the frequency of civil engineering during modal identification, based on the damage detection method of the modal parameters, 3 concrete model beams were tested considering the ambient temperature changing and different damage, the experimental modal were extracted and analysized, the curves of frequency of the beams changing with the ambient temperature and crack were obtained, it is shown that the frequency of concrete beam is sensitive to the environmental temperature, one concrete footbridge was monitored under ambient vibration at different temperatures, the modal frequencies extracted from the monitoring data basically correspond with the experimental results. The temperature has a certain impact on the frequency and should be taken into account during the dynamic test of the concrete bridge. © 2009 Faculty of Construction and Land Use, The Hong Kong Polytechnic University.
会议录	Proceedings of the 1st International Postgraduate Conference on Infrastructure and Environment, IPCIE 2009
会议录出版者	Hong Kong Polytechnic University
语种	英语
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/116387]
专题	土木工程学院
作者单位	School of Civil Engineering, Lanzhou University of Technology, China
推荐引用方式 GB/T 7714	Di, Shengkui,Wang, Lixian. Modal parameters identification research of the concrete beams considering the temperature influence[C]. 见:. Hong Kong, China. June 5, 2009 - June 6, 2009.

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