Retrofitting infill walls to increase lateral load capacity under seismic loading

Nixon, Henry (2016) Retrofitting infill walls to increase lateral load capacity under seismic loading. MEng dissertation, University of Portsmouth.

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    Many RC structures within the Middle East don’t meet the detailing and design requirements to resist seismic forces set out in current seismic design codes; and as such are vulnerable to seismic loading. This has presented an urgent need for the design and implementation of retrofit methods that address this issue and make buildings safe for use again. For this purpose FRP retrofit schemes have been developed that allows masonry infill walls to be utilized as lateral force resisting elements. However there is a need for efficient and reliable analysis procedures that will allow engineers to design FRP retrofit schemes for seismically vulnerable buildings from the economic, cultural and human safety points of view.
    Dynamic analyses have been performed by utilising the programme IDARC 2D 7.0 with the main aim to develop knowledge on analytical methods for assessing FRP retrofit schemes by accurately modelling the real life behaviour of an FRP retrofitted RC frame containing masonry infills based on an actual deficient building located in Israel. The results of the analysis showed a significant increase in strength and stiffness capacities upon retrofit that are in good agreement with the expected behaviour. It was observed that the FRP retrofit reduced the damage sustained by the structure by reducing the overall demand within structural components resulting in a decreased deformation demand throughout the frame.

    Item Type: Dissertation
    Departments/Research Groups: Faculty of Technology > School of Civil Engineering and Surveying
    Depositing User: Jane Polwin
    Date Deposited: 17 Aug 2016 16:10
    Last Modified: 17 Aug 2016 16:10

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