Muttashar, M. and Karunasena, W. and Manalo, A. and Lokuge, W. (2017) Behavior of pultruded multi-celled GFRP hollow beams with low-strength concrete infill. In: 24th Australasian Conference on the Mechanics of Structures and Materials: Advancements and Challenges (ACMSM24), 6-9 Dec 2016, Perth, Australia.
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Text (Accepted Version)
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Abstract
The structural performance of multi-celled GFRP hollow beams is highly affected by the local buckling failure. Therefore, this study introduces pultruded multi-celled GFRP beams filled with low strength concrete. The flexural behaviour of beams made up of 1, 2 and 3 pultruded GFRP square sections (125 mm x125 mm x 6.5mm) and filled with concrete having low compressive strength was investigated. The composite beams were subjected to four-point static bending test to determine the strength, stiffness and failure mechanisms. The results of the experimental investigations showed that the failure stress of 2 and 3 cells beams is 98% and 85% compared with single cell beam, respectively. However, the filling percentages are 50% and 33%, respectively. All the tested beams were failed due to compression failure of the GFRP profile. Furthermore, the effective stiffness of 2 and 3 cells is 95% and 96%, respectively compared with single cell section.
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| Item Type: | Conference or Workshop Item (Commonwealth Reporting Category E) (Paper) |
|---|---|
| Refereed: | Yes |
| Item Status: | Live Archive |
| Additional Information: | Accepted version deposited in accordance with the copyright policy of the publisher. |
| Faculty/School / Institute/Centre: | Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials |
| Date Deposited: | 12 Oct 2017 05:17 |
| Last Modified: | 28 Jun 2019 05:31 |
| Uncontrolled Keywords: | composite, multi-celled GFRP, beam, concrete infill, low strength concrete |
| Fields of Research : | 09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering 09 Engineering > 0905 Civil Engineering > 090503 Construction Materials |
| Socio-Economic Objective: | E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering |
| URI: | http://eprints.usq.edu.au/id/eprint/32547 |
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