PERFORMANCE OF FRP HOLLOW BRIDGE DECK AFTER FATIGUE LOADING AND NATURAL AGING

Abstract

Abstract: This paper presents results from an experimental study of an innovative Glass Fiber Reinforced Polymer (GFRP) bridge deck composed of GFRP pultruded panels, GFRP filament-wound square core-tubes, and Outside Filament-wound Reinforcement (OFR). One specimen was tested by four-point bending test and point load test after fatigue loading for 2000000 times and natural aging for 10 years. Bending stiffness and shear stiffness were analyzed in four-bending test. Point load test simulated vehicle load. Failure mode and ultimate strength were tested in point load test. Specimen was not damaged in four point bending test, during which it remained intact and elastic. Ultimate strength of point load test was 764.57 kN. The failure mode was punching damage near load point. The test results revealed that the long-term performance of GFRP bridge deck was able to satisfy the engineering requirement. Furthermore, GFRP bridge deck had excellent durability.

Key words: FRP (fiber reinforced polymer), bridge deck, natural aging

CLC Number:

TB332

WU Yu-wei, FENG Peng, LIU Xing. PERFORMANCE OF FRP HOLLOW BRIDGE DECK AFTER FATIGUE LOADING AND NATURAL AGING[J]. Fiber Reinforced Plastics/Composites, 2018, 0(11): 68-72.

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