Shailendra Thakur, Rashmi Sakale, Deepesh Malviya
Deterioration in the capacity of reinforced concrete (RC) infrastructure(e.g., spans, structures, and so on.) may result from localized damage sustained during extreme loading situations, such as seismic tremors, storms or waves. In addition, factors such as the corrosion of rebar’s or ageing may also deteriorate or degrade the capacity of an RC column, thereby demanding immediate strengthening to either extend or ensure its design life is not limited. The results of a investigation into the efficiency of fiber reinforced polymers (FRP) in improving the seismic performance of an moment resisting reinforced concrete building are presented. In order to assess the effect of the transverse reinforcement, the building is detailed with different levels of transverse reinforcement representing well-confined and poorly-confined conditions. Although FRP wrapping of columns at critical regions is the main retrofitting technique considered in this investigation, the effect of increasing the beam ductility on the seismic performance of a structure is also evaluated for the code-compliant building. The results confirm that FRP wraps is capable of improving the seismic performance and ductility of the poorly-confined structure substantially, compared to the original structure.
Glass fibers, Carbon fibers, Aramid fibers, Basalt fibers ,FRP technique