Strengthening of Reinforced Concrete Slabs by External Post-Tensioning

Abstract

This article presents strengthening method for the overloaded reinforced concrete slabs by using External Post-Tensioning (EPT) technique. The authors summarizes the guidelines for strengthening design, analyzing and evaluating structures, installation procedures for strengthening the slabs, and the expected results achieved after the strengthening has been completed. From the study, strengthened slabs by EPT can increase the bending moment capacity very well. It can reduce slab deflection by increasing the slab stiffness and reduce vibration by changing structural natural frequency.