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Circular Architectural Structures Lab
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The lab studies building structures that reduce the burden on the global environment.
AboutAbout the lab
Exploring building structures that help reduce environmental impact.
The Circular Architectural Structures Lab studies building structures that support reduction and reuse in order to lessen the burden on the global environment.
The lab treats reduction as including the renovation of buildings so they can be used for longer, as well as the use of timber to fix carbon (reducing CO2 emissions).
The research also covers the conservation of historic buildings and the development of spatial structures that make active use of wood-based materials.
The structural types studied are wide-ranging, including brick construction, timber structures, historic reinforced concrete structures, hybrid reinforced concrete and brick structures, and vibration-controlled structures.
Key terms
- Reduce
- Cutting down on resource use and waste generation. In this lab, it also includes extending the service life of buildings and using timber.
- Dry masonry
- A construction method in which elements such as concrete blocks are stacked without adhesive or mortar.
- Lattice shell
- A structure in which members are assembled in a grid pattern to form a curved, shell-like surface.
- Masonry construction
- A structural system built by stacking units such as bricks or blocks.
ResearchResearch themes
To reduce the burden on the global environment, the lab studies effective building structures, including extending the service life of buildings through renovation and the use of timber. It covers a variety of structural types, such as brick construction, timber structures, and historic reinforced concrete structures.
*Illustrative imageDevelopment of Dry-Stacked Masonry Block Walls
The lab is developing dry-stacked concrete block walls that are resilient to seismic and wind forces and allow a high degree of design freedom. The research covers tie beams, prestressing, seismic design, and shaking table tests.
*Illustrative imageFree-Form Timber and Steel Lattice Shells
The lab is developing free-form lattice shells made of timber and steel. It studies material selection, design methods, and construction methods for connecting elements to form shell-like curved surfaces.
*Illustrative imageEarthquake-Resistant Frames Made from Reused Demolition Timber
The lab is developing earthquake-resistant timber frames using wood recovered from demolished buildings. The research targets structural elements such as timber shear walls and braced frames.
*Illustrative imageStrengthening Earthquake-Damaged Historic Masonry
The lab studies methods for strengthening historic masonry buildings damaged by major earthquakes in Japan and abroad. It also covers seismic retrofitting and wall strengthening of existing unreinforced masonry buildings.
MembersFaculty
- ProfessorKentaro Yamaguchi
VoicesStudent voices
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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: “Fukuoka Parco Main Bldg the seismic retrofit 11-1 Tenjin 2-chōme Chūō-ku Fukuoka 20231114” Hirho / CC BY-SA 4.0 (cropped)
- Development of Dry-Stacked Masonry Block Walls: “Dry-stone wall, Pinhal, Albufeira (1)” Kolforn (Kolforn) I'd appreciate if you could mail me ( ) if you want to use this picture out of the Wikimedia project scope. This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license. You are free: to share – to copy, distribute and transmit the work to remix – to adapt the work Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.https://creativecommons.org/licenses/by-sa/4.0CC BY-SA 4.0 Creative Commons Attribution-Share Alike 4.0 truetrue / CC BY-SA 4.0 (cropped)
- Free-Form Timber and Steel Lattice Shells: “Herzogenriedpark Mannheim Multihalle Innenraum” Immanuel Giel / Public domain (cropped)
- Earthquake-Resistant Frames Made from Reused Demolition Timber: “Waste wood recycled as an art” Sindugab / CC0 (cropped)
- Strengthening Earthquake-Damaged Historic Masonry: “Pottlerath Church exterior NW corner damage” A.-K. D. / CC BY-SA 4.0 (cropped)
- Related lab (建築生産学研究室): “Old brick building in Jasenovac” Mnalis / CC BY-SA 4.0 (cropped)
- Related lab (木質構造学研究室): “Goshen timber frame roof system” Bpickartz / CC BY-SA 3.0 (cropped)
- Related lab (持続型耐震構造学研究室): “Steel floor joist bolted connection detail, Stone County Missouri” K&K Data Service Inc. / CC BY 4.0 (cropped)
- Related lab (建築材料学研究室): “Beton Val Mulin AG Concrete plant, Switzerland (Ank Kumar, Infosys Limited) 01” Ank Kumar / CC BY-SA 4.0 (cropped)
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