This paper investigates the effectiveness of using seismic isolation gadgetsat the average 3-d seismic reaction of curved motorway viaducts with an emphasis on enlargement joints. Furthermore, an assessment of the effectiveness of using cable restrainers is supplied. For this purpose, the bridge seismic overall performance has been evaluated on 4 distinct radii of curvature, thinking about instances: confined and unrestrained curved viaducts. Depending at the radius of curvature,3-dimensional non-lineardynamicevaluation indicatesthe vulnerability of curved viaducts to pounding and deck unseating harm. In this look at, the performance of the use of LRB helps blended with cable restrainers on curved viaducts is validated, now no longer handiest through decreasing in all instances the feasible harm, however additionally through offering a comparable conduct in the viaducts regardless of curvature radius.
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