2020 Fiscal Year Final Research Report
Development of Joint of CLT Panels with High Strength and Stiffness and Structural Design for Urban Timber Buildings
Project/Area Number |
19K22001
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Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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Allocation Type | Multi-year Fund |
Review Section |
Medium-sized Section 23:Architecture, building engineering, and related fields
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Research Institution | Tohoku University |
Principal Investigator |
Maeda Masaki 東北大学, 工学研究科, 教授 (30262413)
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Project Period (FY) |
2019-06-28 – 2021-03-31
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Keywords | CLT(直交積層板) / 接合部 / 都市木造建築 / 小幅パネル / 低炭素社会 |
Outline of Final Research Achievements |
Main purpose of this research wad a development of middle-rise timber buildings such as 3-story to 10-story apartment buildings, office buildings, commercial facilities, schools, etc., which are often found in central urban areas of large cities such as Sendai. Research items and outcomes are (1) feasibility study of a CLT meddle-rise apartment building using a standardized unit construction , (2) development and examination of joint details of CLT panels, and (3) proposal of an alternative structural analytical model using a uniaxial bending spring model for use in structural design practice. Furthermore, through a trial design of CLT mid-to-high-rise buildings using the results of (1) to (3), an applicability of the proposed structural analysis model was shown. Moreover, the possibility of proposed CLT standardized unit for promotion of timber construction was shown.
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Free Research Field |
耐震構造
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Academic Significance and Societal Importance of the Research Achievements |
CLTパネル工法は、高い強度と剛性を有する新しい木質系建築の工法であるが、設計・施工法が未だ十分に成熟していないこと、構造解析・設計法が極めて難しいことから普及が進まない現状にある。本研究の成果により、標準ユニット化、接合法の合理化、また、構造解析・設計法の簡略化により、RC造、鉄骨造に変わる構造として選択できる可能性が広がる。 中高層建築を木造化することで、コンクリートや鋼材に変わり再生可能資源である木材の使用を促進することで低炭素社会の実現に貢献することも期待される。
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