| EPSRC Reference: |
GR/S55101/01 |
| Title: |
Fibre reinforced polymer strengthening of pre-cracked concrete structures |
| Principal Investigator: |
Lees, Professor J |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Engineering |
| Organisation: |
University of Cambridge |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 July 2004 |
Ends: |
30 September 2007 |
Value (£): |
255,189
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| EPSRC Research Topic Classifications: |
| Civil Engineering Materials |
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| EPSRC Industrial Sector Classifications: |
| Construction |
Transport Systems and Vehicles |
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| Panel History: |
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Summary on Grant Application Form |
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Durable, cost-effective strengthening and repair strategies are essential in order to extend the lifetime of existing infrastructure. In particular, FRPs which are strong, light-weight and durable, have tremendous potential for use as external reinforcement to enhance the shear capacity of concrete structures. Since the early 20th century, plasticity approaches have been used to describe the shear behaviour of reinforced concrete. These approaches rely on stress redistribution due to the ductile yielding of steel reinforcement and the great beauty of plasticity theory is that the initial state of stress in the structure is irrelevant. However, FRPs do not yield; thus a knowledge of the true state of stress and strain in the structure, including the stress history, is critical in order to confidently predict the structural behaviour. This proposal will determine the influence of an existing crack pattern on the behaviour of a reinforced concrete member strengthened using FRP external shear reinforcement. Both passive bonded and prestressed unbonded FRP systems will be considered. Complementary experimental and theoretical approaches will be carried out to determine the conditions under which new cracks form and the repercussions of the crack development on the strengthened behaviour. The results of this project will provide significant advances in the fields of structural assessment, strengthening and repair
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.cam.ac.uk |