Flexural Performance of a Hybrid Bridge Deck with Pultruded Fibre Reinforced Polymer Composite Sandwich Panels
Hybrid bridge decks with the pultruded fibre reinforced polymer have advantageous properties but easily crack because of their unsatisfactory transverse strength and shear strength. This study proposed a type of bridge deck composed of innovative pultruded fibre reinforced polymer composite sandwich...
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| Format: | Article |
| Language: | English |
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Riga Technical University Press
2018-09-01
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| Series: | The Baltic Journal of Road and Bridge Engineering |
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| Online Access: | https://bjrbe-journals.rtu.lv/article/view/2302 |
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| author | Lei Wu Yujun Qi Weiqing Liu |
| author_facet | Lei Wu Yujun Qi Weiqing Liu |
| author_sort | Lei Wu |
| collection | DOAJ |
| description | Hybrid bridge decks with the pultruded fibre reinforced polymer have advantageous properties but easily crack because of their unsatisfactory transverse strength and shear strength. This study proposed a type of bridge deck composed of innovative pultruded fibre reinforced polymer composite sandwich panels. Using four-point bending tests, concentric wheelloading tests and eccentric wheel-loading tests combined with first-order shear deformation theory, this study investigated the failure mode, flexural capacity, deformation and ductility of hybrid bridge decks under different working conditions. Under four-point bending and concentric wheel loading, the primary failure modes for this hybrid bridge deck were shear failures along the fibre direction and buckling failure of the upper panel. Under eccentric wheel loading, the primary failure mode was a torsional failure due to the eccentric load. The bearing capacities of the hybrid bridge deck under the three working conditions were 3.8, 3.5 and 3.2 times the service load of a Class I vehicle load, respectively. Besides, the hybrid bridge deck remained in the linear elastic stress state at 2.6 times the service load, indicating that this hybrid bridge deck withstands relatively large vehicle overload without visible damage. The ductility values of this hybrid bridge deck under the three working conditions were 1.79, 2.09 and 2.00, respectively, which are higher than the values for an ordinary pultruded bridge deck. Therefore, the proposed design has the relatively good energy-dissipating capacity, which improves the emergency capacity of the bridge deck. |
| format | Article |
| id | doaj-art-50f1b81e610f4c53b637a57a751eccaf |
| institution | Kabale University |
| issn | 1822-427X 1822-4288 |
| language | English |
| publishDate | 2018-09-01 |
| publisher | Riga Technical University Press |
| record_format | Article |
| series | The Baltic Journal of Road and Bridge Engineering |
| spelling | doaj-art-50f1b81e610f4c53b637a57a751eccaf2025-01-02T04:13:46ZengRiga Technical University PressThe Baltic Journal of Road and Bridge Engineering1822-427X1822-42882018-09-0113310.7250/bjrbe.2018-13.4111183Flexural Performance of a Hybrid Bridge Deck with Pultruded Fibre Reinforced Polymer Composite Sandwich PanelsLei Wu0Yujun Qi1Weiqing Liu2College of Civil Engineering, Nanjing Technical University, Nanjing, ChinaCollege of Civil Engineering, Nanjing Technical University, Nanjing, ChinaCollege of Civil Engineering, Nanjing Technical University, Nanjing, ChinaHybrid bridge decks with the pultruded fibre reinforced polymer have advantageous properties but easily crack because of their unsatisfactory transverse strength and shear strength. This study proposed a type of bridge deck composed of innovative pultruded fibre reinforced polymer composite sandwich panels. Using four-point bending tests, concentric wheelloading tests and eccentric wheel-loading tests combined with first-order shear deformation theory, this study investigated the failure mode, flexural capacity, deformation and ductility of hybrid bridge decks under different working conditions. Under four-point bending and concentric wheel loading, the primary failure modes for this hybrid bridge deck were shear failures along the fibre direction and buckling failure of the upper panel. Under eccentric wheel loading, the primary failure mode was a torsional failure due to the eccentric load. The bearing capacities of the hybrid bridge deck under the three working conditions were 3.8, 3.5 and 3.2 times the service load of a Class I vehicle load, respectively. Besides, the hybrid bridge deck remained in the linear elastic stress state at 2.6 times the service load, indicating that this hybrid bridge deck withstands relatively large vehicle overload without visible damage. The ductility values of this hybrid bridge deck under the three working conditions were 1.79, 2.09 and 2.00, respectively, which are higher than the values for an ordinary pultruded bridge deck. Therefore, the proposed design has the relatively good energy-dissipating capacity, which improves the emergency capacity of the bridge deck.https://bjrbe-journals.rtu.lv/article/view/2302capacityfibre reinforced polymer (frp)fibre reinforced polymer sandwich panelhybrid bridge deckpultrusion processsouthern pine |
| spellingShingle | Lei Wu Yujun Qi Weiqing Liu Flexural Performance of a Hybrid Bridge Deck with Pultruded Fibre Reinforced Polymer Composite Sandwich Panels The Baltic Journal of Road and Bridge Engineering capacity fibre reinforced polymer (frp) fibre reinforced polymer sandwich panel hybrid bridge deck pultrusion process southern pine |
| title | Flexural Performance of a Hybrid Bridge Deck with Pultruded Fibre Reinforced Polymer Composite Sandwich Panels |
| title_full | Flexural Performance of a Hybrid Bridge Deck with Pultruded Fibre Reinforced Polymer Composite Sandwich Panels |
| title_fullStr | Flexural Performance of a Hybrid Bridge Deck with Pultruded Fibre Reinforced Polymer Composite Sandwich Panels |
| title_full_unstemmed | Flexural Performance of a Hybrid Bridge Deck with Pultruded Fibre Reinforced Polymer Composite Sandwich Panels |
| title_short | Flexural Performance of a Hybrid Bridge Deck with Pultruded Fibre Reinforced Polymer Composite Sandwich Panels |
| title_sort | flexural performance of a hybrid bridge deck with pultruded fibre reinforced polymer composite sandwich panels |
| topic | capacity fibre reinforced polymer (frp) fibre reinforced polymer sandwich panel hybrid bridge deck pultrusion process southern pine |
| url | https://bjrbe-journals.rtu.lv/article/view/2302 |
| work_keys_str_mv | AT leiwu flexuralperformanceofahybridbridgedeckwithpultrudedfibrereinforcedpolymercompositesandwichpanels AT yujunqi flexuralperformanceofahybridbridgedeckwithpultrudedfibrereinforcedpolymercompositesandwichpanels AT weiqingliu flexuralperformanceofahybridbridgedeckwithpultrudedfibrereinforcedpolymercompositesandwichpanels |