Innovative bridge deck solutions: Examining the impact response and capacity of UHPC with FRP stay-in-place formworks
This study investigates the impact behaviour of bridge decks constructed with ultra-high-performance concrete (UHPC) and fibre-reinforced polymer (FRP) stay-in-place (SIP) formwork. Eight scaled bridge decks were fabricated and tested under pendulum impacts. Two different FRP SIP formwork configurat...
| Main Authors: | , , |
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| Format: | Journal Article |
| Published: |
2024
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| Online Access: | http://purl.org/au-research/grants/arc/FL180100196 http://hdl.handle.net/20.500.11937/96053 |
| _version_ | 1848766084155441152 |
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| author | Pournasiri, Emad Pham, Thong Hao, Hong |
| author_facet | Pournasiri, Emad Pham, Thong Hao, Hong |
| author_sort | Pournasiri, Emad |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This study investigates the impact behaviour of bridge decks constructed with ultra-high-performance concrete (UHPC) and fibre-reinforced polymer (FRP) stay-in-place (SIP) formwork. Eight scaled bridge decks were fabricated and tested under pendulum impacts. Two different FRP SIP formwork configurations, i.e., square hollow section (SHS) and Y-shaped stiffened, were considered. Two types of reinforcing bars, i.e., steel and glass FRP (GFRP), were adopted for these samples. The influence of impact velocity on the transient response and progressive damage of the concrete decks under impact loading was investigated. The test results showed that UHPC and Y-shaped stiffeners were effective in decreasing the peak and residual displacements of decks by up to 70 % when compared to decks made with normal strength concrete. UHPC and Y-shaped stiffeners greatly improved the impact and residual impact capacities. The use of GFRP rebars instead of steel reinforcement changed the failure mode and FRP SIP formwork reduced deck damage and mitigated scabbing failure under impact loads. The configuration of FRP SIP formwork had a substantial influence on the impact force and thus the deck's performance. Especially, this study has observed an interesting phenomenon under impact, i.e., reaction force could be greater than impact force, which has not been reported in the literature yet. |
| first_indexed | 2025-11-14T11:45:31Z |
| format | Journal Article |
| id | curtin-20.500.11937-96053 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T11:45:31Z |
| publishDate | 2024 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-960532024-11-07T00:50:56Z Innovative bridge deck solutions: Examining the impact response and capacity of UHPC with FRP stay-in-place formworks Pournasiri, Emad Pham, Thong Hao, Hong This study investigates the impact behaviour of bridge decks constructed with ultra-high-performance concrete (UHPC) and fibre-reinforced polymer (FRP) stay-in-place (SIP) formwork. Eight scaled bridge decks were fabricated and tested under pendulum impacts. Two different FRP SIP formwork configurations, i.e., square hollow section (SHS) and Y-shaped stiffened, were considered. Two types of reinforcing bars, i.e., steel and glass FRP (GFRP), were adopted for these samples. The influence of impact velocity on the transient response and progressive damage of the concrete decks under impact loading was investigated. The test results showed that UHPC and Y-shaped stiffeners were effective in decreasing the peak and residual displacements of decks by up to 70 % when compared to decks made with normal strength concrete. UHPC and Y-shaped stiffeners greatly improved the impact and residual impact capacities. The use of GFRP rebars instead of steel reinforcement changed the failure mode and FRP SIP formwork reduced deck damage and mitigated scabbing failure under impact loads. The configuration of FRP SIP formwork had a substantial influence on the impact force and thus the deck's performance. Especially, this study has observed an interesting phenomenon under impact, i.e., reaction force could be greater than impact force, which has not been reported in the literature yet. 2024 Journal Article http://hdl.handle.net/20.500.11937/96053 10.1016/j.engstruct.2024.118448 http://purl.org/au-research/grants/arc/FL180100196 https://creativecommons.org/licenses/by-nc/4.0/ unknown |
| spellingShingle | Pournasiri, Emad Pham, Thong Hao, Hong Innovative bridge deck solutions: Examining the impact response and capacity of UHPC with FRP stay-in-place formworks |
| title | Innovative bridge deck solutions: Examining the impact response and capacity of UHPC with FRP stay-in-place formworks |
| title_full | Innovative bridge deck solutions: Examining the impact response and capacity of UHPC with FRP stay-in-place formworks |
| title_fullStr | Innovative bridge deck solutions: Examining the impact response and capacity of UHPC with FRP stay-in-place formworks |
| title_full_unstemmed | Innovative bridge deck solutions: Examining the impact response and capacity of UHPC with FRP stay-in-place formworks |
| title_short | Innovative bridge deck solutions: Examining the impact response and capacity of UHPC with FRP stay-in-place formworks |
| title_sort | innovative bridge deck solutions: examining the impact response and capacity of uhpc with frp stay-in-place formworks |
| url | http://purl.org/au-research/grants/arc/FL180100196 http://hdl.handle.net/20.500.11937/96053 |