EVALUATION OF THE EFFECT OF STATICALLY INDETERMINATE FORCE TO SEISMIC DYNAMIC BEHAVIORS OF HIGHWAY BRIDGE USING UPLIFTING SLIDE SHOES

Abstract

 Recently, application of rubber bearing to multi-span continuous bridge became popular. But this design caused the increasing size of expansion joint, problem operation and maintenance. Therefore, Up-lifting Slide Shoe (UPSS) has been proposed to deal with the thermal expansion and contraction of bridggiders. This paper presents the result of dynamic response analysis of multi-span continuous bridges witrubber bearing and UPSS considering the effect of statically indeterminate force by nodal force at thboth ends of a girder. As the result, it was cleared that UPSS has the effective of response suppressiomore than rubber bearing.