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Yamazaki Lab
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A lab that builds strong timber buildings able to withstand disasters, mainly earthquakes.
AboutAbout the lab
Strong timber buildings that withstand disasters
The lab conducts research on building strong timber buildings that can withstand disasters, mainly earthquakes.
It studies methods for simulating seismic response under severe conditions, such as the 2016 Kumamoto earthquakes, in which seismic intensity 7 earthquakes on the Japanese scale struck repeatedly.
It also works on technologies that improve safety using passive vibration control devices that reduce shaking.
Through experiments, the lab examines how the walls, floors, and roofs of detached houses, and the columns and walls of mid- to large-scale buildings, behave up to the point of failure, and develops methods for evaluating performance and for design.
Key terms
- Shear wall
- A wall designed to resist horizontal forces from earthquakes and wind
- Glulam (glued laminated timber)
- Timber made by gluing sawn boards together into a large cross-section; used for columns and beams
- CLT (cross-laminated timber)
- Thick wood panels made by gluing layers of boards with the grain directions crossed at right angles; used for walls and floors
NewsLab news
Associate Professor Yamazaki received the Architectural Institute of Japan Prize (for Papers)
“Design Manual for Vibration Control of Houses” published
ResearchResearch themes
The lab conducts research with the goal of building strong timber buildings that can withstand disasters, mainly earthquakes. The four experiments introduced here were all carried out jointly with the Sakata Lab of the Department of Architecture and Building Engineering (until March 2024).
*Illustrative imageShaking Table Tests of Full-Scale Timber Frames
Using the large shaking table of the National Research Institute for Earth Science and Disaster Resilience, the lab applied many large earthquakes to specimens with timber shear walls and examined their behavior up to collapse.
*Illustrative imageTests on Glulam Column Base Joints
At the Building Research Institute, the lab used a testing machine that applies axial force and bending moment simultaneously to examine the behavior of glulam column bases under combined stress.
*Illustrative imageTests on Roof Beam Frameworks in Traditional Construction
In full-scale horizontal loading tests, the lab examined the lateral strength of roof beam frameworks built with traditional methods and without diagonal corner braces. The tests were conducted as part of a standards development promotion project of the Ministry of Land, Infrastructure, Transport and Tourism, and the results were used in revising a ministerial notice.
*Illustrative imageFull-Scale Tests on CLT Shear Walls
At the Building Research Institute, the lab conducted full-scale horizontal loading tests on shear walls built with the CLT panel construction method, and examined how attaching hanging walls and orthogonal walls improves shear wall performance.
MembersFaculty
The Yamazaki Lab consists of faculty members, researchers, master's and undergraduate students, and research students.As of 2026
- Associate ProfessorYoshihiro YamazakiPublications ↗
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Byggnadsstomme2” Entheta / CC BY-SA 3.0 (cropped)
- Shaking Table Tests of Full-Scale Timber Frames: “E-Defense Miki Hyogo Japan” 099jduiao / CC BY-SA 3.0 (cropped)
- Tests on Glulam Column Base Joints: “Fabriek hekospanten” Hekolambert / CC BY-SA 3.0 (cropped)
- Tests on Roof Beam Frameworks in Traditional Construction: “Gassho-zukuri farmhouse-03” Bernard Gagnon / CC BY-SA 3.0 (cropped)
- Full-Scale Tests on CLT Shear Walls: “20230630 Structure of Katajanokan Laituri - Helsinki, Suomi, Finland” Aarni Salomaa / CC BY 4.0 (cropped)
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