Using Instrumented Quarter-Cars for 'Drive By' Bridge Inspection
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|Title:||Using Instrumented Quarter-Cars for 'Drive By' Bridge Inspection||Authors:||O'Brien, Eugene J.
|Permanent link:||http://hdl.handle.net/10197/10224||Date:||1-Jan-2013||Online since:||2019-04-30T11:42:40Z||Abstract:||This paper investigates the concept of ‘drive by’ bridge inspection, a low cost alternative to Structural Health Monitoring (SHM), involving no sensors on the bridge. The concept may be of particular value after an extreme event, such as an earthquake or a flood, where a rapid indication of bridge condition is needed. Vehicle/bridge dynamic interaction is modelled to test the effectiveness of the approach. Damage is simulated here as a change in the bridge damping ratio. Two quarter cars are simulated crossing the bridge with accelerometers on board. A frequency domain analysis then illustrates changes in the Power Spectral Density of the accelerations as the bridge becomes damaged. The time-lagged difference in the accelerations is found to be effective in detecting damage. Results are compared to those with sensors on the bridge and found to be similar.||Type of material:||Conference Publication||Publisher:||IABSE||Keywords:||Bridge; Damage; Damping; Dynamics; Vehicle-bridge interaction; Damage detection; Drive-by||Language:||en||Status of Item:||Not peer reviewed||Is part of:||http://www.iabse.org/IABSE/Press_Releases/IABSE_Rotterdam_Conference_Report.aspx||Conference Details:||The 2013 International Association for Bridge and Structural Engineering Conference (IABSE 2013), Rotterdam, The Netherlands, 6-8 May 2013|
|Appears in Collections:||Civil Engineering Research Collection|
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