Investigating the Contact-Point Response for Drive-By Damage Detection in Bridges
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|Title:||Investigating the Contact-Point Response for Drive-By Damage Detection in Bridges||Authors:||Corbally, Robert; Malekjafarian, Abdollah||Permanent link:||http://hdl.handle.net/10197/12041||Date:||28-Aug-2020||Online since:||2021-03-12T11:36:28Z||Abstract:||Bridges are critical elements in any road or rail transport network and ensuring their safety is paramount. Recent years have seen significant research efforts to develop cost-effective techniques for bridge monitoring on a large scale. Drive-by bridge inspection techniques, whereby sensors inside a vehicle are used to monitor bridge condition, are at the focus of much of this work. This paper develops a relationship between the measured response in a vehicle and the contact-point response between the wheel and the surface of a bridge using a quarter-car representation of the vehicle. Numerical simulations are carried out to examine the feasibility of using the contact-point response as an indicator of damage. A number of passages of the quarter-car vehicle model traversing a Finite Element representation of a bridge are simulated and the contact-point response is evaluated for each passage. Varying levels of damage are simulated in the bridge to assess whether the presence of damage can be detected by the contact-point response. Results show that the method is very effective at identifying the bridge frequencies and can also detect changes in bridge frequency with increasing damage levels. A major advantage of using the contact-point response as a damage indicator lies in its ability to detect bridge frequencies without being influenced by the vibrational frequencies of the vehicle itself. The contact-point response shows promise for implementation into drive-by bridge inspection regimes, however further work is required to investigate the feasibility of the approach at higher vehicle speeds.||Type of material:||Conference Publication||Keywords:||Drive-by; Bridge; Structural health monitoring; Damage detection; Contact-point response||Other versions:||https://sword.cit.ie/ceri/2020/1/5
|Language:||en||Status of Item:||Peer reviewed||Conference Details:||The Civil Engineering Research Association of Ireland Conference 2020 (CERAI 2020), Cork, Ireland (held online due to coronavirus outbreak), 27-28 August 2020||This item is made available under a Creative Commons License:||https://creativecommons.org/licenses/by-nc-nd/3.0/ie/|
|Appears in Collections:||Civil Engineering Research Collection|
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