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2015•AIJ Journal of Technology and DesignOpen access

INFLUENCE OF WOOD DENSITY TO FIRE RESISTANCE OF THE LOAD-BEARING PART

Hirokazu Ohashi, Tsutomu Nagaoka, Hiroki Nagamori, Hiromu Takahashi, Masato Yamamoto, Keitaro Sugita, Shuitsu Yusa, Yoshifumi Ohmiya, Makoto Yamada, Kiyoshi Saito

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Abstract

Fire-resisting wood structural elements for building were developed. It is composed of three layers made of glued laminated timber, “a load-bearing part, a self-charring-stop and a surface layer”. Tree species of load-bearing part is limited to the only kind. In order to enable a species different, this research was carried out. Fire resistance test was performed to demonstrate the effect on fire resistance of the wood density. The relationship of fire resistance and wood density of the load-bearing part was clear. Usage of high wood density of the load-bearing part was obtained a conclusion that is advantageous to fire performance.

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Fire-resisting wood structural elements for building were developed. It is composed of three layers made of glued laminated timber, “a load-bearing part, a self-charring-stop and a surface layer”. Tree species of load-bearing part is limited to the only kind. In order to enable a species different, this research was carried out. Fire resistance test was performed to demonstrate the effect on fire resistance of the wood density. The relationship of fire resistance and wood density of the load-bearing part was clear. Usage of high wood density of the load-bearing part was obtained a conclusion that is advantageous to fire performance.

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Available abstract

Fire-resisting wood structural elements for building were developed. It is composed of three layers made of glued laminated timber, “a load-bearing part, a self-charring-stop and a surface layer”. Tree species of load-bearing part is limited to the only kind. In order to enable a species different, this research was carried out. Fire resistance test was performed to demonstrate the effect on fire resistance of the wood density. The relationship of fire resistance and wood density of the load-bearing part was clear. Usage of high wood density of the load-bearing part was obtained a conclusion that is advantageous to fire performance.

Key concepts: Charring, Load bearing, Fire resistance, Bearing (navigation), Resistance (ecology), Environmental science, Structural engineering, Materials science

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