Repair & Strengthening (structural) Ⅱ

[2216] AEM ANALYSIS OF GRID-STEEL PLATE RETROFITTING METHOD FOR MASONRY PIERS OF RAILWAY BRIDGES

Ngoc T. PHAN¹, Akira HOSODA², Hamed SALEM³, Sakiko TAKAHASHI⁴ (1.Yokohama National University, 2.横浜国立大学, 3.Cairo University, 4.East Japan railway company)

Keywords:Applied Element Method (AEM)、grid-steel plate retrofitting method、masonry piers、応用要素法、格子鋼板補強方法、組積み橋脚

The effects of grid-steel plates to enhance the seismic performance of masonry pier of railway bridges were experimentally studied and numerically investigated by Applied Element Method (AEM). By improving the details of grid-steel plate retrofitting method, sliding of blocks could be eliminated and rocking behavior of a retrofitted column was observed. AEM simulation with appropriate modeling of boundary surfaces between concrete blocks and PVC sheet showed acceptable simulation results.