Author/Authors :
Sasmal، نويسنده , , Saptarshi and Ramanjaneyulu، نويسنده , , K. and Novلk، نويسنده , , Balthasar and Srinivas، نويسنده , , V. Ramesh Saravana Kumar، نويسنده , , K. and Korkowski، نويسنده , , Christian and Roehm، نويسنده , , Constanze and Lakshmanan، نويسنده , , N. Kannan Iyer، نويسنده , , Nagesh R. Iyer، نويسنده ,
Abstract :
The paper discusses the aspects of repair and retrofitting technique adopted for a damaged reinforced concrete beam-column joint specimen under cyclic loading. A specimen designed based on Indian Standard specifications with consideration of seismic load but without adopting ductile detailing (NonDuctile) was investigated under reverse cyclic loading. Then, the damaged nonductile specimen was repaired with epoxy mortar and grouted using low viscous polymer, and retrofitted using fiber reinforced plastic (FRP) wrapping in beam and column components and steel plate jacketing in joint region. The experimental results showed that the retrofitted specimen not only regained its original strength and stiffness but also has overcome the deficiencies of nonductile detailing. The present study shows that a proper repair and adequate retrofitting technique can be used for strengthening and improvement of damaged regions in reinforced concrete structures.
Keywords :
Seismic load , Fiber reinforced plastic (FRP) , Repair , Retrofit , Steel plate jacketing , Energy dissipation
