Investigation of the behavior of deficient steel members strengthened using carbon fiber reinforced polymer under combined compressive load and torsional moment

Abstract

In recent years, carbon fiber reinforced polymer (CFRP) strengthening of steel members has attracted the attention of many researchers. To the author’s knowledge, no research on the behavior of deficient square hollow sections steel members strengthened using CFRP under combined compressive load and torsional moment has been presented. However, this study explored the effect of the use of CFRP strengthening on the behaviors of these steel members. The results indicated that application of CFRP sheets for strengthening the deficient hollow steel members under combined compressive load and torsional moment could recover the strength lost due to deficiency, significantly.