An earthquake has struck! Is the building you're in safe?
NSmos "Nikken Sekkei Earthquake Building Damage Assessment System" instantly determines the degree of damage to buildings.

Judgment method
Seismic sensors (accelerometers) installed inside the building measure the shaking during an earthquake. The building's condition is assessed in real time, and the degree of damage is determined immediately (within 2-3 minutes after the shaking subsides). The extent of damage is determined by comparing the sensor readings with pre-set judgment values (thresholds).

Judgment Report
The assessment results will be provided in report format. The report will assess the degree of damage on a five-tier scale from A to E, and for each tier, it will provide a written explanation of the damage situation, the need for evacuation, and whether continued use is possible. The assessment report is designed to be easy to understand even for those without expertise.

① Appropriate judgment by the designer
Setting appropriate judgment values is crucial for achieving accurate assessments. Just as no two buildings are exactly alike, judgment values vary from building to building, and even within the same building, they differ depending on the floor and direction. In NSmos, Nikken Sekkei's structural engineers accurately grasp the characteristics of each building, set appropriate judgment values, and achieve highly accurate assessments.

② Non-structural members are also included in the determination.
While understanding the extent of damage to structural elements is crucial for confirming safety, assessing business continuity requires understanding the damage to non-structural components as well. NSmos assesses the degree of damage to four non-structural components: exterior materials, ceiling materials, equipment (mounting parts), and furniture.

③ Judgment accuracy is verified through full-scale vibration experiments.
We verified the accuracy of NSmos's assessment in a full-scale vibration experiment of a 10-story building. We confirmed that NSmos can appropriately assess the damage status of the full-scale building.

④ Reports can be viewed even when you are not in the building.
With the optional cloud service, you can view assessment reports on your PC or smartphone. You can check the building's status even when you're away from the building, such as when you're at home or on a business trip.

① Detailed assessment of the damage situation using NSmos + structural analysis.
NSmos's assessment results can identify floors with significant damage, but they cannot determine the extent of damage to individual structural components. However, by combining NSmos with structural analysis performed during the design phase, it is possible to obtain a more detailed understanding of the damage to each component of the building's structure.

② Developing an optimal repair plan
When damage occurs due to an earthquake, determining the scope of investigation and repair is difficult, but with NSmos, it is possible to identify floors with the greatest damage. Furthermore, by combining it with the structural analysis mentioned above, it is possible to identify even more detailed damaged areas. This enables the development of optimal damage investigations and repair plans that focus on the most severely damaged areas.

We structural engineers strive every day to design safe buildings. However, nature cannot be underestimated. How we act when a major earthquake strikes is crucial.
We believe this system will be useful in times of crisis, helping to protect lives and keep businesses running.
Nikken Sekkei not only designs buildings, but also adheres to the LCD (Life Cycle Design) philosophy, which involves supporting both the building and the client even after completion. This system is positioned as an integral part of that philosophy.