Identifying damage in a bridge by analysing rotation response to moving load

Claire McGeown, Farhad Huseynov, David Hester, Patrick McGetrick, Eugene J. O'Brien, Vikram Pakrashi

Research output: Contribution to conferencePaperpeer-review

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Abstract

A recent survey of Europe’s highway infrastructure has concluded that almost half of Europe’s bridges are nearing the end of their design live. Work in the wider Structural Health Monitoring sector is aiming to develop reliable and cost-effective methods for verifying condition, remaining service life and safety of ageing structures. Most bridge condition assessment methods are based on deflection, acceleration or strain measurements. This paper looks at the possibility of using rotation measurements as a main parameter to identify damage. This study looks at numerical analyses of a moving point load on a one-dimensional bridge model to provide the theoretical basis of the proposed damage detection method. It is shown that when local damage occurs, even when it is remote from a sensor location, it results in an increase in the magnitude of rotation measurements. This study looks at how best to exploit this fact for damage detection. In the study a number of damage scenarios, sensor locations, and load arrangements are investigated, and their influence on the ability of the algorithm to detect damage are reported.
Original languageEnglish
Publication statusPublished - 27 Aug 2020
EventCERI 2020 : Civil Engineering Research Ireland - Cork Institute of Technology , Cork, Ireland
Duration: 27 Aug 202028 Aug 2020

Conference

ConferenceCERI 2020 : Civil Engineering Research Ireland
Country/TerritoryIreland
CityCork
Period27/08/202028/08/2020

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