Kumagai Gumi (1861) · InitiativeAdvanced
Dressed Wood, a timber fire-protected steel member
First written in FY2025. 1 of 2 entries say "Advanced", first in FY2026. Latest entry: FY2026.
2entries
2years
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Development and Certification of Timber Fire-Protected Steel Structural MembersA theme 1 companies write about · 0 as a headwind · 1 as a tailwind
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- FY2026AdvancedAnnual report
「当社及び株式会社ホルツストラが共同開発した鉄骨部材を木材で被覆する耐火技術である「ドレスウッド®」柱に、表面化粧材として難燃処理木材を追加し、国土交通大臣の1.5時間耐火認定を取得した。」
ドレスウッドについて、難燃処理木材を表面化粧材に利用できる1.5時間耐火認定を取得し、内装制限のある建物への適用可能性を広げた。 - FY2025First statedAnnual report
「The Company jointly developed with Holzstr Co., Ltd. the "Dress Wood" steel building component, fireproofed with timber and biologically soluble fiber (AES wool) insulation, and obtained Minister of Land, Infrastructure, Transport and Tourism certification for a 1.5-hour fire-resistant column structure.」
The Company developed a component in which steel is fireproofed with timber and AES wool, achieving a slim structure with timber thickness of 30 mm and net covering thickness of 60 mm. Initial adoption in a 9-story office building is planned, together with development of beams and longer-duration fire-resistant components.