Testing of full-scale concrete bridge deck slabs reinforced with fiber-reinforced polymer (FRP) bars

K. Bouguerra; E. A. Ahmed; S. El-Gamal; B. Benmokrane

doi:10.1016/j.conbuildmat.2011.04.028

Testing of full-scale concrete bridge deck slabs reinforced with fiber-reinforced polymer (FRP) bars

K. Bouguerra, E. A. Ahmed, S. El-Gamal, B. Benmokrane^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

86 Citations (Scopus)

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 150 mm); (ii) concrete compressive strength (35-65 MPa); (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 × 250 mm 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 (P_f) 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 (V _exp/V_pred) of 3.17.

Original language	English
Pages (from-to)	3956-3965
Number of pages	10
Journal	Construction and Building Materials
Volume	25
Issue number	10
DOIs	https://doi.org/10.1016/j.conbuildmat.2011.04.028
Publication status	Published - Oct 10 2011
Externally published	Yes

Keywords

Bridge deck slab
Concrete
Design
Fiber-reinforced polymer (FRP)
Punching strength

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
General Materials Science

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10.1016/j.conbuildmat.2011.04.028

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title = "Testing of full-scale concrete bridge deck slabs reinforced with fiber-reinforced polymer (FRP) bars",

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 150 mm); (ii) concrete compressive strength (35-65 MPa); (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 × 250 mm 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 (V exp/Vpred) of 3.17.",

keywords = "Bridge deck slab, Concrete, Design, Fiber-reinforced polymer (FRP), Punching strength",

author = "K. Bouguerra and Ahmed, {E. A.} and S. El-Gamal and B. Benmokrane",

note = "Funding Information: The authors acknowledge the financial support received from the Natural Science and Engineering Research Council of Canada (NSERC), the Fond Quebecois pour la Recherche en Nature et Technologie (FQRNT), and Ministry of Transportation of Quebec. Also, many thanks for Pultrall Inc. (Thetford Mines, Quebec) for generously providing the FRP materials. Special thanks to Fran{\c c}ois Ntacorigira, technician at the Department of Civil Engineering, University of Sherbrooke, for his help in the fabrication and testing.",

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AU - Benmokrane, B.

N1 - Funding Information: The authors acknowledge the financial support received from the Natural Science and Engineering Research Council of Canada (NSERC), the Fond Quebecois pour la Recherche en Nature et Technologie (FQRNT), and Ministry of Transportation of Quebec. Also, many thanks for Pultrall Inc. (Thetford Mines, Quebec) for generously providing the FRP materials. Special thanks to François Ntacorigira, technician at the Department of Civil Engineering, University of Sherbrooke, for his help in the fabrication and testing.

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N2 - 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 150 mm); (ii) concrete compressive strength (35-65 MPa); (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 × 250 mm 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 (V exp/Vpred) of 3.17.

AB - 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 150 mm); (ii) concrete compressive strength (35-65 MPa); (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 × 250 mm 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 (V exp/Vpred) of 3.17.

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KW - Punching strength

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Testing of full-scale concrete bridge deck slabs reinforced with fiber-reinforced polymer (FRP) bars

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Keywords

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