Why is Seismic Resistance Grade 3 alone insufficient?

In cases of repeated strong tremors of magnitude 7 class after an initial major earthquake, as seen in recent earthquakes, damage accumulates in the structure, posing a risk of exceeding safety limits on the second or third tremor.

How does the seismic damping device "evoltz" work?

It is a "velocity-dependent type" device applying automotive shock absorber technology, which responds instantly from small tremors and suppresses building deformation. Its patented "bilinear characteristics" are a key feature.

What are the specific numerical results of the experiment?

The structure with only Seismic Resistance Grade 3 reached its safety limit (82mm) on the 4th vibration, while the structure with evoltz installed was suppressed to 36mm under the same conditions and maintained safety after 8 vibrations.

What do experts say about seismic damping devices?

They state that the role of a seismic damping device is "to maintain the performance of Seismic Resistance Grade 3 for a long time," and combining it with high seismic resistance is extremely effective in protecting families from repeated aftershocks.

Where was this experiment conducted?

It was conducted at an experimental facility in Toyama Prefecture. A total of 69 participants from 26 companies nationwide attended the experiment.

AI News NQ Analysis

[Public Experiment Held] evoltz Seismic Damping Device for Wooden Houses. "Toyama Shindai Experiment 2026" to Verify Differences Between Seismic Resistance and Damping! Demonstrating the Necessity of Seismic Damping Devices in Repeated Major Earthquakes

AI Summary (NQ-processed)

evoltz Co., Ltd. conducted the "Toyama Shindai Experiment 2026" to demonstrate the performance of its seismic damping device "evoltz" for wooden houses. Compared to a structure with only seismic resistance grade 3, the structure equipped with evoltz showed overwhelming durability and deformation suppression effects against repeated strong earthquakes, demonstrating its necessity.

AI Analysis

Frequently Asked Questions

Q: Why is Seismic Resistance Grade 3 alone insufficient?: A: In cases of repeated strong tremors of magnitude 7 class after an initial major earthquake, as seen in recent earthquakes, damage accumulates in the structure, posing a risk of exceeding safety limits on the second or third tremor.
Q: How does the seismic damping device "evoltz" work?: A: It is a "velocity-dependent type" device applying automotive shock absorber technology, which responds instantly from small tremors and suppresses building deformation. Its patented "bilinear characteristics" are a key feature.
Q: What are the specific numerical results of the experiment?: A: The structure with only Seismic Resistance Grade 3 reached its safety limit (82mm) on the 4th vibration, while the structure with evoltz installed was suppressed to 36mm under the same conditions and maintained safety after 8 vibrations.
Q: What do experts say about seismic damping devices?: A: They state that the role of a seismic damping device is "to maintain the performance of Seismic Resistance Grade 3 for a long time," and combining it with high seismic resistance is extremely effective in protecting families from repeated aftershocks.
Q: Where was this experiment conducted?: A: It was conducted at an experimental facility in Toyama Prefecture. A total of 69 participants from 26 companies nationwide attended the experiment.