Experimental Study on Flexural and Shear Behavior of Steel Beams Using Carbon Laminate

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Shekarchi, Mohammad | 2017

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 49723 (09)
University: Sharif University of Technology
Department: Civil Engineering
Advisor(s): Khaloo, Alireza
Abstract:
There is a requirement for strengthening of steel structures due to undesirable design, wrong implementation, bad maintenance and changes in design codes. Many studies have been done on strengthening of concrete specimens but there is a need for reinforcement of steel specimens yet. In the present paper, results of an experimental study on strengthening and reinforcing of steel beams under mechanical loads have been presented. Totally, Sixteen steel specimens with span’s lengths of 0.2, 0.5 and 1 meter were reinforced by carbon laminates and subjected to -point bending load. Three failure modes of shear yielding, flexural yielding and lateral_torsional buckling in the beams were examined. For specimens with failure modes of shear yielding, carbon laminates are used on web of beams and for specimens with failure modes of flexural yielding and lateral_torsional buckling, carbon laminates are used on tensional and compressive flanges and compressive flanges of beams, respectively. The results showed a significant improvement in strength and ductility of steel beams
Keywords:
Flexural Behavior ; Shear Behavior ; Carbon Fiber Laminates ; Moment Yielding ; Three Point Bending Test ; Lateral-Torsional Buckling

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