Improvement of seismic capacity of bridges using seismic isolation system in Korea

This paper describes the state-of-the-art research activities on seismic isolation systems for improving the seismic capacities of the bridges in Korea. Optimal design methodology based on the minimum life-cycle-cost (LCC) is described for the seismically isolated bridges in areas of low-tomoderate seismicity. Experimental studies on seismically isolated bridge are introduced as well, which include pseudo-dynamic test of scaled pier and dynamic field test of full-scale. In addition, various applications of isolation devices to the new and existing bridges are summarized.