Affiliation:
1. Civil Engineering Department, Ankara Yıldırım Beyazıt University, Ankara 06010, Türkiye
Abstract
In the scope of this study, the strengthening of reinforced concrete beams against to shear with different types of composite materials was investigated experimentally. A total of seventeen reinforced concrete beams, one with high shear strength and sixteen with low shear strength, were fabricated. The beam with high shear strength and one of the beams with low shear strength were chosen as reference beams. The remaining fifteen beam specimens were strengthened with textile-reinforced mortar (TRM) and carbon-fiber-reinforced polymer (CFRP). While light and heavy carbon mesh were used for strengthening with TRM, unidirectional carbon textile was used for strengthening with CFRP. Other experimental parameters were the spacing of strips, the number of layers (one or two) and the way of wrapping (strip or full). Simply supported beam specimens were tested under three-point loading. Beam specimens were compared in terms of failure mode, ultimate load capacity, ductility index and energy dissipation capacity.
Subject
Building and Construction,Civil and Structural Engineering,Architecture
Reference64 articles.
1. Teran, A., and Ruiz, J. (1992, January 19–24). Reinforced concrete jacketing of existing structures. Proceedings of the Earthquake Engineering, 10th World Conference, Madrid, Spain.
2. RC frame connections rehabilitated by jacketing;Alcocer;J. Struct. Eng.,1993
3. Seismic retrofit of RC circular columns using prefabricated composite jacketing;Xiao;J. Struct. Eng.,1997
4. Analytical model for steel-jacketed RC circular bridge columns;Chai;J. Struct. Eng.,1994
5. Damage assessment of jacketed RC columns using vibration tests;Feng;J. Struct. Eng.,1999