Fibre composites pile rehabilitation and concrete formwork jacket: concept development and finite element analysis

Manalo, A. C. and Karunasena, W. and Sirimanna, C. and Maranan, G. (2013) Fibre composites pile rehabilitation and concrete formwork jacket: concept development and finite element analysis. In: 4th Asia-Pacific Conference on FRP in Structures (APFIS 2013): Towards Sustainable Infrastructure with FRP Composites, 11-13 Dec 2013, Melbourne, Australia.


Fibre reinforced polymer (FRP) composites offer an extremely versatile option to strengthen or rehabilitate existing structures in harsh marine environment. However, most of the current composite repair systems are limited to applications in easy-to-assess sections or portions of the structure only at a certain depth underwater and requires longer time for people to install and consequently, work underwater.
This paper presents the concept development of a new type of FRP jacket and the preliminary evaluation of the potential of this composite repair system for pile rehabilitation and concrete formwork. The novelty of this fibre composite strengthening system is that it is quick and safe to install due to the easy-fit and self-locking mechanical joint technology developed and patented by Joinlox.
This paper focuses on the analysis and evaluation of the capacity and behaviour of an innovative FRP jacket system subjected to internal pressure using Strand7 finite element (FE) software to verify the practicability of the concept. Comparison with full-scale testing showed that the FE simulations can reasonably predict the expansion behaviour and failure of the FRP jacket.

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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2013 International Institute for FRP in Construction. Permanent restricted access to published version due to publisher copyright policy.
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying
Date Deposited: 04 Apr 2014 04:48
Last Modified: 10 Mar 2015 03:57
Uncontrolled Keywords: pile rehabilitation; jacket; joint; locking key; microfibre resins
Fields of Research : 09 Engineering > 0905 Civil Engineering > 090505 Infrastructure Engineering and Asset Management
09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
E Expanding Knowledge > 97 Expanding Knowledge > 970110 Expanding Knowledge in Technology

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