Improvement of Flexural and Shear Strength of RC Beam Reinforced by Glass Fiber-Reinforced Polyurea (GFRPU)
نویسندگان
چکیده
The Glass Fiber-Reinforced Polyurea (GFRPU) which is the composite by elastic polyurea and milled glass fiber have mechanical characteristics to enhance tensile strength as well ductility. It must be reinforcement materials in repair retrofit applications for strengthening structural capacity has a merit of simple construction spray coating prevent debonding from concrete surfaces unlike existing methods such Fiber-reinforced polymer (FRP) or steel plate. This work compares improvement degree load-carrying flexural ductility RC beam reinforced externally GFRPU. Seven specimens four (RC) beams evaluating flexure-resisting three shear-strengthening are tested. behavior local global method classified according strengthened area compared. shown that polyurea- GFRPU- leads enhancement load-resisting up 8~11% within range 8.41~13.9 times non-reinforced beam. And more shear- than method. also observed GFRPU can effectively utilized enhancing shear-resisting flexure-carrying capacity. Doi: 10.28991/cej-2021-03091662 Full Text: PDF
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ژورنال
عنوان ژورنال: Civil Engineering Journal
سال: 2021
ISSN: ['2676-6957', '2476-3055']
DOI: https://doi.org/10.28991/cej-2021-03091662