SEISMIC PERFORMANCE STUDIES OF SEGMENTAL BRIDGE COLUMNS WITH MATCH-CAST DRY JOINTS USING CONCENTRATED PLASTIC HINGE METHOD

Based on the configuration character of precast segmental bridge columns, the simplified concentrated plastic hinge method was applied to model the specimens of an experimental project under cyclic loading and time history loading. The section moment-curvature analytical program of the five different kinds of concrete bridge columns were written firstly. And the loading and unloading rules of each kind of bridge column were gained according to the experimental results. Lastly, the load-displacement hysteretic loops of each specimen under cyclic loading and the maximum displacement of the center of mass under time history loading cases were calculated with the simplified concentrated plastic hinge method. By comparing the calculated results with the experimental results, it is pointed out that the concentrated plastic hinge method can be applied to the seimic performance analysis of precast segmental bridge columns effectively.