Seismic Diagnosis and Reinforcement of Steel Railway Bridges in Urban Areas

Dr. Manabu Ikeda, Senior Chief Researcher, Head of Structural Mechanics Laboratory, Railway Dynamics Division, introduces methods for seismic diagnosis and reinforcement of rocking-pier steel railway bridges. They were mainly built about 100 to 150 years ago in Japan. If damage is incurred by large-scale earthquakes, collapse is possible.