2017 Fiscal Year Final Research Report

Development of fire-resistive glulam made of Japanese ceder lamina incised by drill and its practical application

Research Project

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Project/Area Number	26252024
Research Category	Grant-in-Aid for Scientific Research (A)
Allocation Type	Single-year Grants
Section	一般
Research Field	Wood science
Research Institution	Tokyo University of Agriculture and Technology
Principal Investigator	Hattori Nobuaki 東京農工大学, (連合)農学研究科(研究院), 名誉教授 (90115915)
Co-Investigator(Kenkyū-buntansha)	安藤恵介東京農工大学, (連合)農学研究科(研究院), 講師 (70262227) 上川大輔国立研究開発法人森林研究・整備機構, 木材改質研究領域, 主任研究員 (30409651) 近江正陽東京農工大学, (連合)農学研究科(研究院), 准教授 (70233020) 吉田誠東京農工大学, (連合)農学研究科(研究院), 教授 (30447510) 松原独歩地方独立行政法人東京都立産業技術研究センター, 事業化支援本部, 主任研究員 (10560154)
Co-Investigator(Renkei-kenkyūsha)	HARADA Toshiro 森林研究・整備機構, 森林総合研究所, 研究コーディネータ (50353818)
Research Collaborator	MIYABAYASHI Masayuki MIYAMOTO Keiichi FUKUTA Satoshi NISHIO Satoru
Project Period (FY)	2014-04-01 – 2018-03-31
Keywords	ドリルインサイジング / レーザインサイジング / スギ / 集成材 / ２時間耐火
Outline of Final Research Achievements	To revitalize forest and forest products industry in Japan, buildings such as tall office and mass housing made of Japanese ceder in fire protective area are most effective solution. As posts and beams of these buildings must have the fire performance up to three hours, development of two hours fire performance was targeted. The post or beam for this target consists of load bearing part without any treatment, fire die-out part whose lamina is incised by laser or drill and impregnated a fire retardant, and surface part without any treatment. Three buildings were already built using the certified one hour fire perforamnce post and beam. The fire die-out part is not adhered, but screwd to loard bearing part in order to replace it easily in case of accidental fire. Two hours fire perforamnce were almost achieved on three times of the fire test. It is found that two hours fire perforamnce can be achieved by a minor change of the design concept.
Free Research Field	木材加工学