EXPERIMENTAL STUDY ON MECHANICAL BEHAVIOR OF DAMAGE CONTROLLED PRECAST-PRESTRESSED CONCRETE STRUCTURE WITH P/C MILD-PRESS-JOINT

Abstract

This paper presents results of the experimental tests to certify the mechanical behaviors of the frame structures by precast-prestressed concrete with MILD-PRESS-JOINT. The purpose of this experiment is to obtain not only hysteresis characteristic but behavior of joint rotation also prestressing strand for compression beam-column and to establish damage-controlled design by them. The specimen is cruciform model of prototype frame with MILD-PRESS-JOINT. The beam and column members precast-prestressed concrete are connected by prestressing strand that go through the beam and column, and anchored at the end of beam. Specimens have following parameter, with or without corbel of column and strand arrangement. As the results of experiment, damages occur only at beam-column interface, also, residual deformation is very small, and deformation is concentrated at beam-column interface. A possibility of damage control design can be shown by using P/C MILD-PRESS-JOINT.