Improvement the Performance of R.C. Beams Under Torsion Using Various Systems – A review

Document Type : Original Article

Authors

1 P.G. student at Military Technical College Cairo, Egypt.

2 Department of Civil Engineering, Military Technical College, Cairo, Egypt.

Abstract

Due to the human needs to increase the loads of structures such as residential buildings, bridges, ports and other structures, and also the emergence of so-called strengthening and restoration, there must be different methods to implement the needs of every structure that is standing and used normally. Therefore, we will present below the most prominent methods used in strengthening concrete beams. To resist the torsional moments occurring on it, such as using fibre bars, glass fibre reinforced plastic (GFRP), and steel fibres, and finding the most appropriate methods in terms of ease of implementation and low cost, and also presenting some of the methods used during implementation. This research also gave a qualitative division of the reinforcement methods and classified them according to their implementation methods and method, as it there are methods of reinforcement before pouring reinforced concrete, that is, during the implementation of the concrete element, and also methods of reinforcement during the work of the concrete element in the building, and this case is called restoration. This research dealt with a compilation of many methods of reinforcement to resist torsional loads, and the most prominent of these materials are the materials based in their manufacture on glass fibre, as well as additions during the making of the concrete mixture, such as steel fibres.

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