The effects of unbonded CFRP stiffener for steel structural members subjected to axial compression, part 2: finite element analysis

摘要

In this research, the buckling length and diameter of stiffenedmaterial and stiffening length of CFRP as stiffening member areevaluated as research of compressive strength improvementmethod by unbonded CFRP to a steel bar. Through the axialcompressive test conducted to verify the buckling length andstiffening effect, the test results were compared with the resultsby finite element analysis, and its correspondence was clarified.In addition, it was shown that it is possible to evaluate the strengthafter buckling and stiffening of members by using the proposedstrength evaluation method.