Strengthening of steel structures with bonded prestressed laminates Numerical analyses of alternative techniques for reducing the interfacial stresses Master’s Thesis in the International Master’s Programme Structural Engineering ANNA BJÖRKLUND JOAKIM HÖGLIND Department of Civil and Environmental Engineering Division of Structural Engineering Steel and Timber Structures CHALMERS UNIVERSITY OF TECHNOLOGY Göteborg, Sweden 2007 Master’s Thesis 2007:80 -20 0 20 40 60 80 100 120 140 160 180 0 50 100 150 200 250 300 350 400 450 500 Distance from the end of the laminate [mm] Shear stress [MPa]