Study of the behaviour of a FRP box girder footbridge subjected to dynamic excitation

Glennon, Reece (2016) Study of the behaviour of a FRP box girder footbridge subjected to dynamic excitation. MEng dissertation, University of Portsmouth.

[img] PDF
Restricted to Registered users only

Download (2339kB)


    Use of new engineering materials in the construction industry is leading to new bridges possessing longer spans, lower mass and increased slenderness. All of these factors lead to newer bridges becoming more vulnerable to dynamic excitation this is particularly true of footbridges an example being the problems that occurred with the launch of the London Millennium Bridge. This case in particular showed that the effect of dynamic loading on bridges can be easily overlooked in design. This project will look at the consequences of using a new lightweight engineering material in the construction of a pedestrian bridge. In the course of this work the vibrations induced by the pedestrian loading will be simulated both in the vertical and lateral directions. A finite element model will be constructed to assess the vertical response and a mathematical model will be formed to investigate the lateral behaviour. This will be carried out both on a FRP bridge and an identical steel bridge in order to draw comparisons of the performance of the FRP against a conventional control material. From the results of the analysis it was found that FRP bridges have a greater vulnerability to dynamic loading showing a much larger response. This may limit the potential applications of the material as a design solution.

    Item Type: Dissertation
    Departments/Research Groups: Faculty of Technology > School of Civil Engineering and Surveying
    Depositing User: Beth Atkins
    Date Deposited: 01 Sep 2016 10:12
    Last Modified: 01 Sep 2016 10:12

    Actions (login required)

    View Item

    Document Downloads

    More statistics for this item...