This paper presents nonlinear viscous damper (NVD) implementation to an existing highway arch bridge structure to prevent pounding effect on abutments. The nonlinear dynamic response analysis performed on finite element model of bridge structure due to severe earthquake excitations showed that the relative displacement response between the bridge deck and the abutments exceeds available distance in normal conditions through the longitudinal direction. As a remedy for suppressing seismic responses, nonlinear viscous dampers were approved to be installed at the end of the deck since they are simple to implement for existing structures in construction field. The transversal behavior has also been investigated to mitigate the corresponding responses by the installation of dampers in order to control the lateral behaviour of the bridge for each direction. The damper capacity in response to seismic responses through transverse direction was also obtained in the same manner as done in longitudinal direction.
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