Fibre-reinforced polymer strengthening of substandard lap-spliced reinforced concrete members: A comprehensive survey. Issue 6 (June 2017)

• Record Type: Journal Article
• Authors: Garcia, Reyes; Guadagnini, Maurizio; Pilakoutas, Kypros; Pech Poot, Luis A
• Is Part Of: Advances in structural engineering. Volume 20:Issue 6(2017)
• Page Start: 976
• Page End: 1001
• Publication Date: 2017-06
• Subjects: lap splices -- seismic strengthening -- RC columns -- FRP confinement -- bond strength; Structural engineering -- Periodicals; Construction, Technique de la; Structural engineering; Periodicals; 624.1
• DOI: 10.1177/1369433216668362
• Languages: English
• ISSNs: 1369-4332

Abstract

Externally bonded Fibre Reinforced Polymer (FRP) confinement is extensively used to improve the bond strength of substandard lap spliced steel bars embedded in reinforced concrete (RC) components. However, the test results from bond tests on such bond-deficient components are not fully conclusive, which is reflected in the few design guidelines available for FRP strengthening. For the first time, this article presents a comprehensive survey on FRP strengthening of substandard lap-spliced RC members, with emphasis on the adopted experimental methodologies and analytical approaches developed to assess the effectiveness of FRP in controlling bond-splitting failures. The main findings and shortcomings of previous investigations are critically discussed and further research needs are identified. This review contributes towards the harmonisation of testing procedures so as to facilitate the development of more accurate predictive models, thus leading to more cost-effective strengthening interventions.