Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Behaviour of a GFRP-Reinforced Concrete Bridge Deck Under Pulsating and Rolling Loads
This paper investigates the performance of a full-scale reinforced concrete bridge deck subjected to cyclic loads. The purpose of this study was to compare the performance of a GFRP-reinforced bridge deck using traditional pulsating loads against the newer method of rolling loads. A slab-on-girder type bridge deck was constructed with dimensions 15.24 m × 3.89 m × 0.21 m and a girder spacing of 3.05 m. The bridge deck was reinforced with top and bottom grids of glass fiber reinforced polymer (GFRP) rebar in accordance with the empirical method presented in the Canadian Highway Bridge Design Code. One section of the deck was subjected to 3000 cycles of fixed pulsating loads using a hydraulic actuator. Another section was subjected to 3000 cycles of rolling loads using a novel Rolling Load Simulator (ROLLS), the first machine of its kind in Canada. Throughout cycling, monotonic load tests were performed to monitor the reinforcement strains and the stiffness degradation behaviour of each section. The results showed that the section subjected to rolling loads experienced a greater overall change in flexural stiffness. Further cycles should be performed to assess the behaviour of each section over its full fatigue life.
Behaviour of a GFRP-Reinforced Concrete Bridge Deck Under Pulsating and Rolling Loads
This paper investigates the performance of a full-scale reinforced concrete bridge deck subjected to cyclic loads. The purpose of this study was to compare the performance of a GFRP-reinforced bridge deck using traditional pulsating loads against the newer method of rolling loads. A slab-on-girder type bridge deck was constructed with dimensions 15.24 m × 3.89 m × 0.21 m and a girder spacing of 3.05 m. The bridge deck was reinforced with top and bottom grids of glass fiber reinforced polymer (GFRP) rebar in accordance with the empirical method presented in the Canadian Highway Bridge Design Code. One section of the deck was subjected to 3000 cycles of fixed pulsating loads using a hydraulic actuator. Another section was subjected to 3000 cycles of rolling loads using a novel Rolling Load Simulator (ROLLS), the first machine of its kind in Canada. Throughout cycling, monotonic load tests were performed to monitor the reinforcement strains and the stiffness degradation behaviour of each section. The results showed that the section subjected to rolling loads experienced a greater overall change in flexural stiffness. Further cycles should be performed to assess the behaviour of each section over its full fatigue life.
Behaviour of a GFRP-Reinforced Concrete Bridge Deck Under Pulsating and Rolling Loads
Lecture Notes in Civil Engineering
Benmokrane, Brahim (Herausgeber:in) / Mohamed, Khaled (Herausgeber:in) / Farghaly, Ahmed (Herausgeber:in) / Mohamed, Hamdy (Herausgeber:in) / Tauskela, Laura (Autor:in) / Gao, Severus (Autor:in) / Fam, Amir (Autor:in)
8th International Conference on Advanced Composite Materials in Bridges and Structures ; Kapitel: 25 ; 213-220
27.09.2022
8 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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