A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Testing of full-scale concrete bridge deck slabs reinforced with fiber-reinforced polymer (FRP) bars
Highlights ► This paper investigated the behavior of FRP-reinforced concrete bridge deck slabs under monotonically increasing concentrated loads until failure. ► The load was applied at the center of each slab over a contact area of 600×250 mm to simulate the footprint of the truck wheel load (87.5kN CL-625 truck). ► The accuracy of the available punching provisions was evaluated by comparing the measured punching capacities against the predicted ones.
Abstract This paper presents an experimental study investigating the behavior of FRP-reinforced concrete bridge deck slabs under concentrated loads. A total of eight full-scale deck slabs measuring 3000-mm long by 2500-mm wide were constructed. The test parameters were: (i) slab thickness (200, 175 and 150mm); (ii) concrete compressive strength (35–65MPa); (iii) bottom transverse reinforcement ratio (1.2–0.35%); and (iv) type of reinforcement (GFRP, CFRP, and steel). The slabs were supported on two parallel steel girders and were tested up to failure under monotonic single concentrated load acting on the center of each slab over a contact area of 600×250mm to simulate the footprint of sustained truck wheel load (87.5 kN CL-625 truck). All deck slabs failed in punching shear. The punching capacity of the tested deck slabs ranged from 1.74 to 3.52 times the factored load (Pf) specified by the Canadian Highway Bridge Design Code (CHBDC) CAN/CSA S6-06. Besides, the ACI 440.1R-06 punching strength equation greatly underestimated the capacity of the tested slabs with an average experimental-to-predicted punching capacity ratio (Vexp/Vpred) of 3.17.
Testing of full-scale concrete bridge deck slabs reinforced with fiber-reinforced polymer (FRP) bars
Highlights ► This paper investigated the behavior of FRP-reinforced concrete bridge deck slabs under monotonically increasing concentrated loads until failure. ► The load was applied at the center of each slab over a contact area of 600×250 mm to simulate the footprint of the truck wheel load (87.5kN CL-625 truck). ► The accuracy of the available punching provisions was evaluated by comparing the measured punching capacities against the predicted ones.
Abstract This paper presents an experimental study investigating the behavior of FRP-reinforced concrete bridge deck slabs under concentrated loads. A total of eight full-scale deck slabs measuring 3000-mm long by 2500-mm wide were constructed. The test parameters were: (i) slab thickness (200, 175 and 150mm); (ii) concrete compressive strength (35–65MPa); (iii) bottom transverse reinforcement ratio (1.2–0.35%); and (iv) type of reinforcement (GFRP, CFRP, and steel). The slabs were supported on two parallel steel girders and were tested up to failure under monotonic single concentrated load acting on the center of each slab over a contact area of 600×250mm to simulate the footprint of sustained truck wheel load (87.5 kN CL-625 truck). All deck slabs failed in punching shear. The punching capacity of the tested deck slabs ranged from 1.74 to 3.52 times the factored load (Pf) specified by the Canadian Highway Bridge Design Code (CHBDC) CAN/CSA S6-06. Besides, the ACI 440.1R-06 punching strength equation greatly underestimated the capacity of the tested slabs with an average experimental-to-predicted punching capacity ratio (Vexp/Vpred) of 3.17.
Testing of full-scale concrete bridge deck slabs reinforced with fiber-reinforced polymer (FRP) bars
Bouguerra, K. (author) / Ahmed, E.A. (author) / El-Gamal, S. (author) / Benmokrane, B. (author)
Construction and Building Materials ; 25 ; 3956-3965
2011-04-14
10 pages
Article (Journal)
Electronic Resource
English
Testing of full-scale concrete bridge deck slabs reinforced with fiber-reinforced polymer (FRP) bars
| Online Contents | 2011
Testing of full-scale concrete bridge deck slabs reinforced with fiber-reinforced polymer (FRP) bars
| British Library Online Contents | 2011
Serviceability of Concrete Bridge Deck Slabs Reinforced with Fiber-Reinforced Polymer Composite Bars
| Online Contents | 2004