Optimum strengthening of steel-concrete composite beams using pre-stressed FRP plates

This paper suggests an analytical procedure using exterior penalty approach to gain the optimum pre-stressing amount in FRP plates which is attached to tensile flange of a steel-concrete beam. Object of this study is viewing effect of pre-stressing on reduction of demanded FRPs which doesn’t pre-stress. Finally a parametric study to demonstrate effect of pre-stressing on various types of the FRPs is conducted.

کلیدواژه ها:

Pre-stressed FRP plates ، strengthening ، optimization ، steel-concrete composite beams