Structural Analysis of Cruciform Frame With Floor Slab Using Pc Mild-Press-Joint

Abstract

Buildings with PC MILD-PRESS-JOINT show elastic-nonlinearity during severe earthquakes by means of elastic rotation at the joints. Damage concentration occurred on the interface, damage of structural members can be controlled. Authors have already obtained the proof of the characteristics through a series of studies. In this study, Moment rotation hysteresis model was proposed using the bond characteristic of PC strands. The model was applied to the cross-shaped structure and the cross-shaped structure with slab, which were used in the previous study. In conclusion, the hysteresis model, which was constructed only by the result of cross-section analysis, was performed well. Better accuracy of unloading hysteresis and the residual deformation could be obtained by considering the nonlinearity of the general structural element.