SEISMIC PERFORMANCE AND MAXIMUM STRENGTH ESTIMATION OF PRECAST PRESTRESSED CONCRETE WALL WITH UNBONDED TENDON

Abstract

Unbonded PCaPC walls with great potentiality for damage reduction will be a promising option for more flexible responses to earthquakes. Therefore, in this study, the structural performance of unbonded PCaPC walls was experimentally investigated. RC wall specimen was also designed for structural performance comparisons, and the variables for unbonded PCaPC wall specimens were the methods of tendon arrangement. From the experiments, the unbonded PCaPC walls exhibited excellent damage control performance and origin-oriented historical properties even after large deformation. The maximum strength evaluation method was also proposed based on a macro model, and the calculations showed reasonable agreement with the experiments.