Analysis of bridges subjected to flood loadings based on different design standards

Jordan, Bradley (2015) Analysis of bridges subjected to flood loadings based on different design standards. [USQ Project]


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The need to design bridges to withstand flood and debris loads has long been recognised in Australia, however bridges are still failing to live their entire design life when subjected to extreme flooding events. This research project presents a structural evaluation of bridges when subjected to the current flood loadings from design standards around the world. A case study bridge has been selected to apply the flood loads on. The case study bridge chosen is Tenthill Creek Bridge, located within the Lockyer Valley Region.

The flood loadings that were identified from the design standards were drag, lift and debris forces as well as log-impact loads. Static components that were also included in the model were hydrostatic pressure as well as buoyancy. The structural components of the bridge that were identified to be analysed were the piers and superstructures. The structural evaluation has been performed using a finite element analysis (FEA) software package, Strand7. The model was analysed by Strand7’s linear static analysis. Displacement and stress concentration results were then produced and analysed. The results indicate that the Australian Standards produced, on average, 20% more adverse effects in comparison to the international standards. The results indicate that no recommendations could be made for the Australian Standards, based on the results produced by the International Standards. Further work will need to be conducted if specific recommendations are to be made for the Australian Standards.

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Item Type: USQ Project
Item Status: Live Archive
Additional Information: Bachelor of Engineering (Honours) (Civil) project
Faculty/School / Institute/Centre: Historic - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying (1 Jul 2013 - 31 Dec 2021)
Supervisors: Karunasena, Karu
Date Deposited: 06 Jun 2016 23:14
Last Modified: 06 Jun 2016 23:14
Uncontrolled Keywords: Flood Loads, Bridge, Bridge Design Standards
Fields of Research (2008): 09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
Fields of Research (2020): 40 ENGINEERING > 4005 Civil engineering > 400510 Structural engineering

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