Torsion design of CFRP plated RC members

Since 2001, there have been several experimental investigations in strengthening reinforced concrete members in torsion. However, available tools for torsion design of FRP plated reinforced concrete members are limited and unproven. A database of previous experimental data available in literature was compiled and compared against fib Bulletin 14. Modifications consistent with the space truss model were proposed to correct the poor accuracy in predictions of CFRP contribution to strength. Subsequently, a design tool consistent with several national design codes to analyze the full torsional capacity of CFRP plated reinforced concrete beams was validated against the experimental database.