1Civil, Arch. and Envir. Engr, Missouri University of Science and Technology, Rolla, MO 65409, USA
2Nahrain University, Bagdad, Iraq
3Civil, Arch. and Envir., Missouri University of Science and Technology, Rolla, MO 65409, USA
Adv. Mater. Lett., 2018, 9 (11), pp 789-795
DOI: 10.5185/amlett.2018.2153
Publication Date (Web): Jul 25, 2018
Copyright © IAAM-VBRI Press
E-mail: jmyers@mst.edu
To experimentally examine the ability of the steel reinforced polymer (SRP) in restoring the moment capacity compromised by damage in the main steel reinforcement, six full-scale reinforced concrete (RC) beams were designed to simulate impact damage from over height vehicle collision. The simulation was represented by concrete beams reinforced with discontinuous reinforcement (splice in maximum moment region) and tested until failure due to splice. The damaged concrete was repaired, and the SRP system (longitudinal soffit laminates and transverse U-wraps) was applied to restore the original moment capacity. All beams were 10 ft (3.0 m) in length, 18 in. (457 mm) in depth, and 12 in. (305 mm) in width. Different repairing configurations were investigated. The studied variables were the provided laminate area and the amount and distribution of U-wraps. The ultimate load capacity, deflection, and mode of failure were recorded during testing. The test results were compared to beam results with continuous reinforcement. It was concluded that the repairing beams with the SRP system can restore the damaged beams to a capacity similar to that of a non-damaged reinforced concrete (RC) beam with continuous reinforcement.
Severely damaged beam, SRP system, splice, flexural capacity, over-height vehicle impact.
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