چكيده به لاتين
In a transportation network, bridges are among the key elements and in order to avoid disturbing the network of roads and relief, their maintenance and utilization after the earthquake is of great importance.By using different methods of controlling structures, bridges can be protected against damage caused by earthquake. Also, force-displacement design methods can not justify all structural behaviors at the time of the earthquake, so today, an energy-based approach involving nonlinear behavior and the concept of hysteretic energy is used. Therefore, in this research, for improving the seismic performance of bridges we try to study the control of bridges by using an energy-based method, especially cable stayed bridges, which are of great importance. Thus, by considering a case study, the effect of the damper and its location, on the response of structure to earthquake is investigated and the results indicate that to reduce the response of the structure to earthquake excitation, the best place to install the damper is between the deck and the pylons, and the dampers that are connected to the cables and to the deck are more effective in reducing the structure response to wind and storm forces instead of earthquake.
