Study on Evacuation Route in Case of Disaster Considering the Fragility of Mechanical Structures

To improve the evacuation safety of multi-story buildings by escalator, escalator fragility curves were calculated using a probabilistic risk assessment. In order to calculate the damage probability of the escalator and mechanical structure in each story, the time history response analysis of the three storey building model was calculated. A floor model was constructed from graph theory, and a simulation to find a safe evacuation route. The change in the possibility of using the escalator during evacuation due to the revision of the seismic code of the escalator was compared with the old Japanese code in each floor of the building.