2024 年 10 巻 42 号 p. 1566-1571
The past large earthquakes have caused masonry train platforms to collapse due to large deformation. The collapse of the platform can jeopardize the safety of train operations and pose a threat to human life. Therefore, the purpose of this study is to confirm the seismic performance of the embankment-type platform with masonry during an earthquake and to propose appropriate seismic reinforcement. In order to understand the behavior of the masonry train platform during an earthquake, the shaking table tests were carried out on 1/3 model in the gravitational field. As a result of the experiment, it was confirmed that embankment-types platform with masonry may collapse in a large earthquake in Japan. Therefore, we developed an optimal seismic reinforcement method based on the behavior confirmed in the experiment. The shaking table tests were carried out again with a model simulating the proposed seismic reinforcement method. As a result of the experiment, it was confirmed that the seismic resistance performance was greatly improved compared to before reinforcement.
