科研之友
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摘要
Concrete deep beams with small shear span-depth ratios (a/d) are common elements in structures. To mitigate corrosion-induced damage in concrete structures, members internally reinforced with fiber-reinforced polymer (FRP) are increasingly specified. However, very little experimental data exist for FRP-reinforced concrete deep beams, as prior research has mainly focused on slender beams having a/d greater than 2.5. This paper reports on an experimental study designed to investigate the shear behavior of concrete deep beams internally reinforced with FRP and containing no distributed web reinforcement. Test results of 12 large-scale specimens that were loaded in a four-point bending configuration are presented, where the primary variables included the a/d, reinforcement ratio, member height, and concrete strength. The results show that an arch mechanism was able to form in FRP-reinforced concrete beams having a/d less than 2.1.
- 出版日期2013-8
- 单位AECOM
