EXPERIMENTAL STUDY ON COMPRESSIVE FORCE REHABILITATION FOR ANGLE STEEL MEMBER USING CARBON FIBER REINFORCED PLASTIC PLATES

The authors have developed a tensile force strengthening method using bonded carbon fiber reinforced plastic (CFRP) plate to enhance the life of existing buildings. Aging and deterioration of existing steel structures necessitates the development of simple and efficient rehabilitation techniques. To enhance the strength and plastic deformation capacity of steel structural member, it is required a rehabilitation technique for compressive force strengthening as well as for tensile force strengthening. This paper reports the results of compression and cyclic loading tests conducted on an angle steel member before and after rehabilitation using CFRP plates. These results show enhanced axial force carrying capacity and plastic deformation capacity of the member by bonding CFRP plate and the proposed rehabilitation is effective for compression member of steel structure.