Infrastructure sustainability : damage assessment in multiple-girder composite bridges using vibration characteristics
Shih, Hoi Wai, Thambiratnam, David, & Chan, Tommy H.T. (2010) Infrastructure sustainability : damage assessment in multiple-girder composite bridges using vibration characteristics. In Tan, Yigitcanlar (Ed.) Rethinking Sustainable Development: Urban Management, Engineering, and Design. IGI Global, Hershey, PA. (In Press)
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Assessing the structural health state of urban infrastructure is crucial in terms of infrastructure sustainability. This chapter uses dynamic computer simulation techniques to apply a procedure using vibration-based methods for damage assessment in multiple-girder composite bridges. In addition to changes in natural frequencies, this multi-criteria procedure incorporates two methods, namely, the modal flexibility and the modal strain energy method. Using the numerically simulated modal data obtained through finite element analysis software, algorithms based on modal flexibility and modal strain energy change, before and after damage, are obtained and used as the indices for the assessment of structural health state. The feasibility and capability of the approach is demonstrated through numerical studies of a proposed structure with six damage scenarios. It is concluded that the modal strain energy method is capable of application to multiple-girder composite bridges, as evidenced through the example treated in this chapter.
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|Item Type:||Book Chapter|
|Keywords:||Damage assessment, multiple-girder composite bridge, vibration characteristics, vibration-based damage identification.|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Structural Engineering (090506)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering|
Past > Schools > School of Urban Development
|Copyright Owner:||Copyright 2010 IGI Global|
|Deposited On:||27 Apr 2010 11:34|
|Last Modified:||01 Mar 2012 00:22|
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