Life Prolongation of Steel Building Using Carbon Fiber Reinforced Plastic Plate (Part 4) Bending Force Rehabilitation of Secondary Beam with Slab

Aging and deterioration of existing steel structures necessitates the development of simple and efficient rehabilitation techniques. To enhance the usage life of existing steel buildings, a strengthening method with bonding continuous fiber reinforced plastic plates (FRP) and the analysis model who predicts flexural rigidity and a bending moment carrying capacity has been required. This paper reports the results of bending tests conducted on a Narrow H-shaped steel beam with slab before and after rehabilitation using CFRP plates. An analytical model that can predict the flexural rigidity of rehabilitated steel beam is also proposed.