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Architectural Structures Lab
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A lab that uses experiments to investigate the mechanical behavior and materials of building and civil engineering structures.

AboutAbout the lab
Exploring structural performance and materials through experiments
The Architectural Structures Lab studies the mechanical behavior of building and civil engineering structures (infrastructure) and the physical properties of the materials used in them.
The lab mainly takes an experimental approach, aiming to share methods for evaluating the performance and designing both existing structures and new structural systems.
Its research includes strengthening concrete with fibers and continuous fiber reinforcement, and evaluating the performance of deteriorated structures.
On the lab's website, the lab is introduced under the names "RC Laboratory" and "KANAKUBO Lab."
Key terms
- Infrastructure
- A word used on the lab's website alongside civil engineering structures. In this lab, it is studied together with building structures.
- FRCC
- Fiber-Reinforced Cementitious Composites. A material made by mixing short fibers such as PVA or aramid into cement mortar or concrete.
- FRP
- Fiber-Reinforced Polymer, a type of continuous fiber reinforcement. It has corrosion resistance and high specific strength, and the lab uses it to reinforce concrete.
NewsLab news
View More ↗ResearchResearch themes
The lab studies the mechanical behavior of building and civil engineering structures and the physical properties of the materials used in them, aiming to share methods for evaluating the performance and designing both existing structures and new structural systems. Research is mainly experimental, and planned graduation research topics include fiber reinforcement, FRP, deterioration, and bond.
*Illustrative imageFiber-Reinforced Cementitious Composites (FRCC)
The lab studies materials in which high-performance short fibers (PVA or aramid) are mixed into cement mortar or concrete to dramatically improve brittle failure, as well as structures made with these materials.
*Illustrative imageFRP Composite Structures
The lab aims to realize long-life, highly durable structures by reinforcing concrete and FRCC with continuous fiber reinforcement (FRP or fiber ropes), which offers corrosion resistance and high specific strength.
*Illustrative imagePerformance Evaluation of Deteriorated Concrete Structures
This research aims to properly evaluate the performance of deteriorated structures, for the maintenance management of the many structures built during Japan's period of rapid economic growth.
*Illustrative imageBond Between Reinforcement and Concrete
In concrete structures, the bond between concrete and reinforcement (rebar or FRP bars) is essential for the two to behave as one. The relationship between bond stress and slip is strongly nonlinear and is greatly affected by the history of cyclic loading.
MembersFaculty
Members of the Architectural Structures Lab consist of faculty, doctoral, master's, and undergraduate students, and research students.As of 2026
- ProfessorToshiyuki Kanakubo
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: “StructuralTesting 020” National Institute of Standards and Technology / Public domain (cropped)
- Fiber-Reinforced Cementitious Composites (FRCC): “UHPFRC - Ultra-High Performance Fiber Reinforced Concrete” Bianca Paola Maffezzoli / CC BY-SA 4.0 (cropped)
- FRP Composite Structures: “Structural Loads Testing on X-53 AAW Aircraft” Tom Tschida / Public domain (cropped)
- Performance Evaluation of Deteriorated Concrete Structures: “Route 2 Bridges Suspended Steel Beam on Old Route 2 East Bridge ( )” MassDOT / Public domain (cropped)
- Bond Between Reinforcement and Concrete: “A bunch of rebar up close” W.carter / CC BY-SA 4.0 (cropped)
- Related lab (建築構造研究室): “Reinforced concrete strut from the Weaver Building, 1897” Syclp / CC BY-SA 4.0 (cropped)
- Related lab (インフラ情報研究室
(西尾研究室) ): “Brownell Street Bridge Steel Girders ( )” MassDOT / Public domain (cropped) - Related lab (山本研究室): “Panguil Bay Bridge 001” Department of Public Works and Highways (DPWH) / Public domain (cropped)
- Related lab (音響システム研究室【通信・農業施設・情報化施工】
(通信システム研究室) ): “Scuba diver SCTLD antibiotic paste” Joe Snyder/NOAA / Public domain (cropped)
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