Abstract
In the last two decades, the study of reinforced concrete (RC) structures elements such as bridge deck slabs, bridge girders, or offshore installations, which are subjected to cyclic action typically induced by seismic motions has received the attention of many researchers. Furthermore, the past two decades have witnessed rapid growth in the use of fiber-reinforced polymer (FRP) confining jackets for the strengthening/retrofit of reinforced concrete (RC) columns and beams. Moreover, several theoretical and empirical models have been proposed for evaluating the shear strength of beams, columns and beam-to-column joints. In this paper, an overview of the models currently available in the scientific literature for evaluating the shear capacity of beams, columns and exterior beam-to-column joints is reported. Further, important practical issues which contribute in shear strengthening of structures with different element types especially RC beams with different strengthening techniques, such as steel plate and FRP laminate are discussed. Finally, directions for future research based on the existing gaps of the existing works are presented.
Highlights
Reinforced concrete (RC) structures are commonly designed to satisfy two criteria: serviceability and safety
The shear performance of reinforced concrete (RC) beams strengthened in shear with externally bonded carbon fiber-reinforced polymer (CFRP) strips subjected to a cyclic loading for two million cycles at 1 Hz is investigated by Sang-Wook Bae et al (2013) [11]
Results obtained from experimental study compared with that in the existing literature and showed that RC beams strengthened in shear with externally bonded carbon FRP (CFRP) could survive two million cycles of cyclic loading without failure
Summary
Reinforced concrete (RC) structures are commonly designed to satisfy two criteria: serviceability and safety. The design of reinforced concrete structures is subjected to cyclic loadings such as bridge deck slabs, bridge girders, or offshore installations necessitate the consideration of fatigue. These structures typically experience millions of stress cycles during their service life; the cyclic load can be detrimental to their structural performance [1]. The study of reinforced concrete structures sections subjected to cyclic action typically induced by seismic motions has received the attention of many researchers. The past two decades have witnessed rapid growth in the use of fiber-reinforced polymer (FRP) confining jackets for the strengthening/retrofit of reinforced concrete (RC) columns.
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