Research
R&D for Enhancing Resistance in regional areas
Research at E-Defense aimed at assessing and advancing technologies for evaluating future and potential risks from major earthquakes and subsequent events, with the goal of supporting and enhancing the resilience and continuity of socio-economic activities.
Temporal evolution Multiple events
Clarifying the response variations of ground and structure
Research and development on damage processes from ground failures and assessment technologies
Focusing on heterogeneous ground similar to real sites, this research investigates the recovery and damage mechanisms of unexplored liquefaction phenomena during consecutive major earthquakes, and develops methods for assessing damage and risks.
Spatial extent Multiple structures
Understanding state changes and damage
Research and development on multi-monitoring technologies for indoor to urban function disaster
This research focuses on developing methods for rapid damage assessment using image, acoustic, and other data, evaluating the severity of damage, and supporting decision-making for continued use, with corresponding mitigation technologies, aiming for applications from indoor environments to regional areas.
HP：https://indoorPJ.e-defense.bosai.go.jp
Expansion of virtual space Digital twin
Full-scale expansion into cities
Research and development of a numerical analysis platform at the regional level based on a numerical shaking table
This research aims to establish an regional level analysis platform based on a numerical shaking table, capable of producing damage estimations and risk predictions with a scientifically grounded and reasonably balanced level of accuracy.
HP：https://e-simulator.bosai.go.jp/
Toward practical application of technologies Advanced technologies
Detection of changes in structural dynamic characteristics
Research and development on damage assessment technologies for structures (Large-Span Buildings, Steel Buildings)
Aiming to establish optimal sensing technologies that contribute to understanding the damage status of urban structures, this research installs sensors such as accelerometers on buildings and their components to capture and analyze vibration data from frequent small- to medium-scale earthquakes. Through this process, we develop and demonstrate technologies for evaluating structural dynamic characteristics and assessing structural damage.
