Investigation of varied loads on the performance of FRP sandwich bridge deck panels

Cheah, Shi Yun (2013) Investigation of varied loads on the performance of FRP sandwich bridge deck panels. MSc dissertation, University of Portsmouth.

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    This paper mainly presents the dynamic responses of the Fibre Reinforced Polymer (FRP) footpath bridge deck under human walking loads by using Finite Element Method (FEM), LUSAS software. Due to understanding of static behaviour of the structure under static loading is important before carried out the dynamic analysis, thus the evaluation of static patch loads are included for the analysis. At this stage, 2D and 3D model are created for the both static and dynamic analysis. Yet, for the dynamic analysis, the 2D models with damping are compared to the model with no damping to verify the dynamic response of the structure. The results show the one with damping are successfully reduced the dynamic responses of the structure. So that, damping property is important for footbridge design. Also, the comparison between 2D and 3D model with damping are carried out to determine the accuracy of the results between these two models. Both 2D and 3D model are suitable to model modelling but sometimes 2D would be preferred due to the shorter time-consuming. Lastly, the predictions of failure modes are also included in this research by using Hashin failure criterion. The results shows the major mode to cause structure failure seems to be the compressive failure of matrix and then followed by delamination of the outer layers.

    Item Type: Dissertation
    Departments/Research Groups: Faculty of Technology > School of Civil Engineering and Surveying
    Depositing User: Beth Atkins
    Date Deposited: 01 Aug 2014 09:18
    Last Modified: 28 Jan 2015 12:39

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