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Fundamental Research Toward Utilizing Bamboo Laminated Timber as a Building Material
Bamboo
Background and Purpose
Bamboo has long been ubiquitous in daily life as a material for household goods and construction. However, its presence has been diminishing due to the recent proliferation of plastics, resulting in an increase in abandoned bamboo forests that have become a social issue. Amidst rising demand for timber, there is a growing call for alternative construction materials to replace wood. Against this backdrop, the aim is to clarify the structural properties of bamboo laminated timber and its environmental impact, with the goal of promoting its use as a structural material by processing bamboo into this form.
Results
This study conducted fundamental research to explore the use of bamboo as a building material by developing bamboo laminated timber. To this end, structural performance and environmental performance were verified through experiments and simulations. We confirmed that bamboo laminated timber possesses sufficient strength for structural applications and obtained individual ratings for buildings constructed with it. While manufacturing bamboo laminated timber does not yield net carbon sequestration, we confirmed that revising the manufacturing process holds the potential to achieve carbon sequestration exceeding that of wood laminated timber.
List of Research Topics
Doctoral Thesis
Fundamental Research for Promoting the Use of Bamboo Laminated Timber as a Building Material - Examination of Bamboo Laminated Timber Construction Methods through Model Building Design -
Master's Thesis
Fundamental Research for Utilizing Bamboo Laminated Timber as a Building Material - Carbon Footprint/Handprint at the Manufacturing Stage -
Basic Research for Structural Applications of Bamboo Laminated Timber - Calculation of Characteristic Values Based on Material Strength Tests and Screw Joint Shear Strength Tests
Bachelor's Thesis
Development of Load-Bearing Walls Using Split Bamboo - Single-Plane Shear Tests of Joints Using Industrial Staples
Basic Research for Structural Applications of Bamboo Laminated Timber - Material Strength and Screw Joint Shear Strength Tests
Peer-reviewed paper
Mitsuzono Haruto, Takano Atsushi, Fukuyama Hiroshi, Furuyama Akiyoshi, Akutsu Masaru：BASIC STUDY OF GLUED LAMINATED BAMBOO(NO.1) : EXAMINATION OF MATERIAL STRENGTH TEST PROCESS -Bending, Compressing and Shearing-，AIJ Journal of Technology and Design. Vol. 30, No.76, 1345-1350, 2024.10(in Japanese)
Mitsuzono Haruto, Takano Atsushi：CARBON FOOTPRINT OF GLUED LAMINATED BAMBOO: Assessment of the material production stage and resource efficiency，Journal of Environmental Engineering (Transactions of AIJ), Vol.90, No.835, pp.463-472 2025.9(in Japanese)
Mitsuzono Haruto, Takano Atsushi, Fukuyama Hiroshi：BASIC STUDY OF GLUED LAMINATED BAMBOO：POSSIBILITY OF APPLYING EUROPEAN YIELD THEORY(EYT) TO JOINTS USING SCREW FOR TIMBER STRUCTURE - Single, Double and Quadruple shear joint -，Journal of Structural and Construction Engineering (Transactions of AIJ), Vol.91, No.839, pp.- 2026.1(in Japanese)
List of Awards and Honors
・Nikkken Housing Systems, Hafnium Architects, Takano Laboratory, Graduate School of Science and Engineering, Kagoshima University, Performance Evaluation (Time-History Response Analysis) for Certification under Article 20, Paragraph 1, Item 3(b) of the Building Standards Act: Bamboo Laminated Timber Structure Project BCJ-Kihyo-LW0199-01, Japan Building Center Wood Structure Evaluation Committee, 2023.
・Winner of the Unbuilt Sustainable Non-Residential Project category at the 12th Architizer A+Awards
・COOL JAPAN AWARD 2025 Outbound Category
