Seismic Retrofit of RC Columns with Continuous Carbon Fiber Jackets

摘要: The development, the validation, and implementation of a new seismic retrofit system for reinforced concrete columns are described. column jacketing consists continuous carbon fiber prepreg tows wound in an automated fashion onto existing circular or rectangular columns, with variable jacket thickness along height based on experimentally validated design models. Jacket criteria various failure modes described detailed examples show their application to retrofits geometry, different reinforcement ratios, detailing. designs through large-scale bridge model tests found be just as effective steel shell providing desired inelastic deformation capacity levels. Furthermore, it is shown that guidelines also applicable other advanced composite systems appropriate considerat...