Engineering Approach to the Fire Protection Design of Large Wooden Structural Members

2015 Fiscal Year Final Research Report

• Project/Area Number: 25249081
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Architectural environment/Equipment
• Research Institution: Waseda University
• Principal Investigator: Hasemi Yuji 早稲田大学, 理工学術院, 教授 (40298138)
• Co-Investigator(Kenkyū-buntansha): ITAGAKI Naoyuki 秋田県立大学, システム科学技術学部, 教授 (00271891) ; SUZUKI Jun'ichi 国土技術政策総合研究所, 建築研究部, 主任研究官 (10453846) ; KOSHIHARA Mikio 東京大学, 生産技術研究所, 教授 (50334321) ; HARADA Kazunori 京都大学, 工学研究科, 教授 (90198911) ; ONO Tetsuro 椙山女学園大学, 生活科学部, 教授 (30024300)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 木質構造 / 耐火構造 / 準耐火構造 / 自消 / スパン / ヤング係数 / 曲げ強度 / 含水率

Outline of Final Research Achievements

Following issues not resolved for the design and development of wooden fireproof and quasi-fireproof constructions are studied: .(a)Prediction of the condition for the self-extinguishment of wood under fire exposure, (b)Prediction of the mechanical performance of wood under fire exposure, (c)Prediction of the fire safety performance of wooden beam longer than standard furnace specimen.
The study a) resulted in the development of predictive method of fireproof performance of wooden assembly based on material testing and succeeded in achieving fireproof performance only with wood based materials available in common market. The study b) resulted in the finding of the strong dependence of the mechanical properties of wood on moisture and represented them as functions of temperature and moisture. The study c) resulted in the development of predictive method of fire safety performance of long wooden beam from normal furnace tests.

Free Research Field

火災工学