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Performance in Transverse Direction of Fiber-Reinforced Polymer Bridge Decks

 Performance in Transverse Direction of Fiber-Reinforced Polymer Bridge Decks
Author(s): , ,
Presented at IABSE Conference: Structural Engineering: Providing Solutions to Global Challenges, Geneva, Switzerland, September 2015, published in , pp. 1575-1582
DOI: 10.2749/222137815818358970
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Pultruded glass fiber-reinforced polymer (GFRP) bridge decks distribute punctual vehicular loads to the underlying superstructure and can also act as the upper chord of hybrid main girders. The dec...
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Bibliographic Details

Author(s): (Composite Construction Laboratory, École Polytechnique Fédérale de Lausanne, Switzerland)
(Composite Construction Laboratory, École Polytechnique Fédérale de Lausanne, Switzerland)
(Composite Construction Laboratory, École Polytechnique Fédérale de Lausanne, Switzerland)
Medium: conference paper
Language(s): English
Conference: IABSE Conference: Structural Engineering: Providing Solutions to Global Challenges, Geneva, Switzerland, September 2015
Published in:
Page(s): 1575-1582 Total no. of pages: 8
Page(s): 1575-1582
Total no. of pages: 8
Year: 2015
DOI: 10.2749/222137815818358970
Abstract:

Pultruded glass fiber-reinforced polymer (GFRP) bridge decks distribute punctual vehicular loads to the underlying superstructure and can also act as the upper chord of hybrid main girders. The deck’s structural performance in both cases is influenced by its transverse behavior. The static bending behavior in the transverse-to-pultrusion direction of two GFRP bridge deck systems with trapezoidal (DS) and triangular (AS) cell cross-sectional geometry was experimentally studied. Different load transfer mechanisms were found inDS(frame-dominated) andAS(truss-governed) depending on the cell geometry. TheDSdeck exhibited a lower apparent bending stiffness and degree of composite action between the face sheets than theASdeck, which was attributed to the lower transverse in-plane shear stiffness provided by the trapezoidal core than by the triangular core. The system in-plane shear moduli were estimated from the experimental deflection results.

Keywords:
GFRP bridge deck composite action Pultrusion mechanical testing transverse behavior in-plane shear modulus