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  6. Comprehensive Guide to Seismic Reinforcement (Renovation) of Wooden Houses

Comprehensive Guide to Seismic Reinforcement (Renovation) of Wooden Houses

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last updated:Dec 23, 2025

トキワシステム
トキワシステム
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For those concerned about earthquakes and their damage! We will introduce the flow, types, and options other than "earthquake resistance."

Our house is a wooden structure. Since it has been many years since it was built, I think it's about time to consider earthquake measures. This article explains the process of seismic reinforcement (earthquake-resistant renovation) for wooden houses, the options available, and also discusses considerations beyond just 'earthquake resistance' for those who have such concerns. We will also introduce methods to avoid failures and regrets regarding seismic reinforcement, which we would like to avoid if possible, so if you are concerned about the occurrence of earthquakes and potential damage, please refer to this information. *For detailed content of the column, you can view it through the related links. For more information, please feel free to download the PDF or contact us.

    Earthquake-proof and vibration-damping equipment
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Comprehensive Guide to Seismic Reinforcement (Renovation) of Wooden Houses

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  • What is a seismic damping device called "seismic damper"?
  • Special site - Product/service details - https://pr.www.ipros.com/tokiwa-system/product/

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Proposal for Application-Specific Plans for the Vibration Control Device "α Damper Ex II"

Proposal for Application-Specific Plans for the Vibration Control Device "α Damper Ex II"

TECHNICAL
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Seismic control device for wooden houses αDamperExII (αDamperExII)

Seismic control device for wooden houses αDamperExII (αDamperExII)

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Hydraulic Vibration Control Device for Wooden Houses 'α Damper ExII' *Pamphlet included

Hydraulic Vibration Control Device for Wooden Houses 'α Damper ExII' *Pamphlet included

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Seismic control device for wooden houses αDamperExII

Seismic control device for wooden houses αDamperExII

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[Construction Example] α Damper EXII New Construction Project

[Construction Example] α Damper EXII New Construction Project

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[Construction Case] α Damper EXII Renovation Work

[Construction Case] α Damper EXII Renovation Work

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Earthquake safety measures for peace of mind

Earthquake safety measures for peace of mind

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Seismic resistance level maintained by seismic dampers - Building homes that can be lived in even after a major earthquake.

Seismic resistance level maintained by seismic dampers - Building homes that can be lived in even after a major earthquake.

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Started providing evaluation reports that clearly show the effects of the α Damper Ex II installation at a glance.

Started providing evaluation reports that clearly show the effects of the α Damper Ex II installation at a glance.

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The superiority of the α Damper ExII in suppressing the reduction of building strength due to major earthquakes.

The superiority of the α Damper ExII in suppressing the reduction of building strength due to major earthquakes.

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National Seismic Hazard Map 2018 Edition

National Seismic Hazard Map 2018 Edition

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Company information

トキワシステム

トキワシステム

Building materials, supplies and fixtures manufacturers

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Tokiwa System Co., Ltd. is a company that develops, manufactures, and sells the seismic control device αDamperExII. It is a pioneer in seismic control devices using hydraulic dampers. The αDamperExII has received the number one track record and trust in the Tokai and Tonankai earthquake warning areas, and it will soon be adopted in 10,000 buildings. The αDamperExII is a hydraulic seismic control device that reduces building deformation caused by earthquake shaking by approximately half.

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