Manufacturing and structural performance of glass-fiber-reinforced precast-concrete boat ramp planks

Manalo, A.C. and Alajarmeh, O. and Cooper, D. and Sorbello, C. D. and Weerakoon, S. Z. and Benmokrane, B. (2020) Manufacturing and structural performance of glass-fiber-reinforced precast-concrete boat ramp planks. Structures, 28. pp. 37-56. ISSN 2352-0124


Glass-fiber-reinforced-polymer (GFRP) bars are an ideal solution for eliminating the problems of steel corrosion in reinforced-concrete structures exposed to marine environments. The potential long-term benefits of the reduced maintenance costs and increased service life of GFRP-reinforced concrete structures have not been fully realized due to these reinforcing materials being more costly than steel bars. This study aims to demonstrate the cost-effectiveness of GFRP bars as internal reinforcement in precast-concrete boat-ramp planks. This is the first study that provided a comparative evaluation of the manufacturing and structural performance of planks reinforced with GFRP bars or galvanized-steel bars to fully convince engineers and asset owners of the economic benefits of specifying and using GFRP bars in infrastructure projects. The results of the study revealed that the fabrication and installation of the reinforcing mesh constituted the main differences between planks reinforced with GFRP or galvanized steel. Overall, fabricating precast-concrete boat-ramp planks with two layers of GFRP bars required less labor and equipment, and yielded better serviceability and structural performance than the current plank design using galvanized steel. These benefits led to approval and publication of the standard drawings for a new plank design for implementation in boating-infrastructure projects in Australia.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying (1 Jul 2013 -)
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Date Deposited: 05 Feb 2021 06:00
Last Modified: 10 Feb 2021 05:22
Uncontrolled Keywords: Boat ramp planks, Glass-fiber-reinforced polymer (GFRP) bars, Manufacturing, Time-and-motion study, Structural performance, Optimised design
Fields of Research (2008): 09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
Fields of Research (2020): 40 ENGINEERING > 4005 Civil engineering > 400510 Structural engineering
40 ENGINEERING > 4016 Materials engineering > 401602 Composite and hybrid materials
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Socio-Economic Objectives (2020): 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280110 Expanding knowledge in engineering
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