Vibration and Impact Studies of Multigirder Steel Bridges in Laboratory
Yu, Ling & Chan, Tommy H.T. (2001) Vibration and Impact Studies of Multigirder Steel Bridges in Laboratory. In Das, P.C., Frangopol, D.M., & Nowak, A.S. (Eds.) Current and Future Trends in Bridge Design, Construction and Maintenance, 25-26 April, Hong Kong.
The impact of highway bridges resulting from the passage of vehicles across spans is an important problem encountered in the design of bridges. Many parameters that may affect the impact factor include the velocity and dynamic properties of the moving vehicle, the dynamic properties and boundary conditions of the bridge, and the roughness in road pavement. According to the truck design loading specified by AASHTO and the structural similarity principle, a vehicle and a multi-girder steel bridge are designed and constructed in laboratory for impact studies and further identification of the moving axle loads. The 3-D finite element method in the professional software package, ABAQUS, is used to calculate the dynamic characteristics of the bridge. The experimental modal analysis technique is adopted to measure the modal properties of both vehicle and bridge. The influence of both the vehicle velocity and lateral lane position on the impact factor is investigated. Accurately estimation of the static responses of bridges due to moving vehicles is considered and compared with the filtered static responses. Results arc uscli11 for the bridge design and the further study on the development of impact formulae proposed by the bridge loading code.
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|Item Type:||Conference Paper|
|Additional Information:||For more information, please refer to the publisher’s website (see hypertext link) or contact the author.|
|Subjects:||Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000)|
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500)
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 2001 American Society of Civil Engineers|
|Deposited On:||04 Mar 2008|
|Last Modified:||11 Aug 2011 04:34|
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