期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：189
期号：2
页码：022007
DOI：10.1088/1755-1315/189/2/022007
语种：English
出版社：IOP Publishing
摘要：Structural health monitoring is an important technical solution to track the evolution of bridge performance and prevent sudden damage, which receives rapid development in the past decades. While, long-term deflection is a critical index to evaluate bridge state and provide references for bridge maintenance and management. Hence, health monitoring of bridge long-term deflection is studied in the paper using a connected pipe system. First, bridge deflection monitoring system using a connected pipe is designed. Then, theoretical formulation of bridge deflection considering bridge vibration is deduced. Finally, the deflection monitoring system is verified through a model test. Results indicate the proposed bridge deflection monitoring using a connected pipe system could precisely measure the long-term static deflection induced by structural degradation as well as transient dynamic deflection caused by environment loads, and the relative error between theoretical formulation and realistic measurements is no more than 2.3%. The long-term bridge deflection monitoring using a connected pipe system studied in the paper could find wide application in bridge health monitoring.
Loading...
