- Title
- Shear behaviour of unreinforced masonry panels retrofitted with fibre reinforced polymer strips
- Creator
- Petersen, R. B.; Masia, M. J.; Seracino, R.
- Relation
- 9th International Symposium on Fiber Reinforced Polymer Reinforcement for Concrete Structures (FRPRCS '09). Proceedings of the 9th International Symposium on Fiber Reinforced Polymer Reinforcement for Concrete Structures (Sydney 13-15 July, 2009)
- Relation
- http://www.iceaustralia.com/frprcs9
- Publisher
- International Symposium on Fiber Reinforced Polymer Reinforcement for Concrete Structures
- Resource Type
- conference paper
- Date
- 2009
- Description
- Inserting fibre reinforced polymer (FRP) strips into pre-cut grooves is an emerging technique for the retrofit of unreinforced masonry (URM) structures. This method, known as near surface mounting (NSM), provides significant advantages over externally bonded FRP strips in that it has less of an effect on the aesthetics of a structure and can sustain higher loading before debonding. As this technique is relatively new, few studies into the behaviour of masonry walls strengthened using this technique are available. Marshall and Sweeney have used carbon FRP (CFRP) NSM strips to improve the in-plane flexural behaviour of masonry shear walls, but they did not use the strengthening technique to prevent sliding or diagonal cracking failure. Tinazzi and Nanni strengthened URM shear panels using NSM circular glass FRP bars, but not strips. Thin rectangular strips are more efficient than circular bars, because the confinement around the strip is maximised. An experimental investigation was conducted to study the in-plane shear behaviour of masonry walls strengthened with NSM CFRP strips. As part of the study four URM walls and seven strengthened walls were tested in diagonal tension/shear (ASTM E519-93). Different reinforcement orientations were used, including: vertical; horizontal; and a combination of both. The effect of nonsymmetric reinforcement was also studied.
- Subject
- brick masonry; fibre reinforced polymers; in-plane shear; near surface mounted
- Identifier
- uon:8898
- Identifier
- http://hdl.handle.net/1959.13/919535
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