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首页> 外文期刊>International Journal of Advanced Structural Engineering >A state of the art review on reinforced concrete beams with openings retrofitted with FRP
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A state of the art review on reinforced concrete beams with openings retrofitted with FRP

机译:钢筋混凝土开孔玻璃钢改建技术的最新进展

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摘要

The use of externally bonded fiber reinforced polymer (FRP) sheets, strips or steel plates is a modern and convenient way for strengthening of reinforced concrete (RC) beams. Several researches have been carried out on reinforced concrete beams with web openings that strengthened using fiber reinforced polymer composite. Majority of researches focused on shear strengthening compared with flexural strengthening, while others studied the effect of openings on shear and flexural separately with various loading. This paper investigates the impact of more than sixty articles on opening reinforced concrete beams with and without strengthening by fiber reinforcement polymers FRP. Moreover, important practical issues, which are contributed in shear strengthening of beams with different strengthening techniques, such as steel plate and FRP laminate, and detailed with various design approaches are discussed. Furthermore, a simple technique of applying fiber reinforced polymer contributed with steel plate for strengthening the RC beams with openings under different load application is concluded. Directions for future research based on the existing gaps of the present works are presented.
机译:使用外部粘结的纤维增强聚合物(FRP)板,条或钢板是增强钢筋混凝土(RC)梁的现代便捷方法。已经对具有腹板开口的钢筋混凝土梁进行了一些研究,这些腹板使用纤维增强的聚合物复合材料进行了加固。与抗弯加固相比,大多数研究集中在抗剪加固上,而另一些研究则分别研究了开口在不同载荷下对抗剪和抗弯的影响。本文研究了六十多篇文章对采用纤维增强聚合物FRP增强和不增强的钢筋混凝土梁的打开效果。此外,还讨论了重要的实际问题,这些问题对使用不同的加固技术(例如钢板和FRP层压板)进行梁的剪切加固做出了贡献,并详细介绍了各种设计方法。此外,得出了一种简单的技术,即在钢板上添加纤维增强聚合物,以在不同载荷作用下加固带开口的RC梁。提出了基于当前工作存在的空白进行未来研究的方向。

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