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Concrete Structures Lab
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The lab investigates the seismic performance of reinforced concrete buildings through experiments and analysis.

AboutAbout the lab
Building a safe and secure society through structural engineering
The Concrete Structures Lab aims to build a safe and secure society through structural engineering, and conducts research involving experiments, analysis, and theory.
Recently, the lab has been studying how reinforced concrete and masonry buildings behave during earthquakes and how to evaluate their performance.
The lab also works on developing new construction techniques for concrete buildings and on field surveys in earthquake-stricken areas.
On the lab's website, it is introduced under the name Concrete Structure Laboratory (known as Labo. 2).
Key terms
- Reinforced concrete
- A structure in which steel reinforcing bars are placed inside concrete to strengthen it
- Masonry construction
- A building structure in which walls are made by stacking bricks, blocks, or similar units
- CLT
- Short for Cross Laminated Timber. A material made by gluing layers of wooden boards together with their grain directions perpendicular to each other
ResearchResearch themes
This lab works on evaluating the seismic behavior and performance of reinforced concrete high-rise buildings, and on developing mechanisms and design methods that limit damage to walls. It also develops structures that combine reinforced concrete and timber (CLT), and works on the seismic evaluation and strengthening of buildings in developing countries in Asia.
*Illustrative imageEvaluating the seismic behavior of high-rise RC buildings
The lab studies how high-rise reinforced concrete buildings behave during earthquakes and how their seismic performance should be evaluated.
*Illustrative imageDesign methods for simplified construction using mechanical anchorage
The lab proposes design methods for simplified construction using mechanical anchorage of reinforcing bars.
*Illustrative imageMechanisms to limit earthquake damage to RC walls
The lab develops mechanisms to limit the damage that reinforced concrete walls suffer in earthquakes.
*Illustrative imageImproving the design of structural walls with openings
The lab works on improving the design of structural walls by taking into account openings (holes) in the walls.
MembersFaculty
The members of the Concrete Structures Lab consist of faculty, project researchers, doctoral, master's, and undergraduate students, and secretaries.As of 2025
- ProfessorYasushi Sanada
- Associate ProfessorSusumu Takahashi
- Assistant ProfessorRokhyun Yoon
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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: “Haitian national palace earthquake” Logan Abassi / UNDP Global / CC BY 2.0 (cropped)
- Evaluating the seismic behavior of high-rise RC buildings: “Earthquake-Ready High Rise in Chile ( )” U.S. Geological Survey from Reston, VA, USA / Public domain (cropped)
- Design methods for simplified construction using mechanical anchorage: “A worker ties together reinforcing bar, or rebar, to strengthen concrete floors for a facility that will house 372 students as part of the Herat University Women's Dormitory Project in Herat province 140311-A-DT641-242” Bill Dowell / Public domain (cropped)
- Mechanisms to limit earthquake damage to RC walls: “Concrete wall cracking as its steel reinforcing cracks and swells 9061” JonRichfield / CC BY-SA 3.0 (cropped)
- Improving the design of structural walls with openings: “Installing rebar for a parapet wall for an approach structure in Harold Interlocking. )” MTA Capital Construction Mega Projects / CC BY 2.0 (cropped)
- Related lab (Steel Structures Lab): “UnicRotarex® steel house” Marius Rotar / CC BY-SA 4.0 (cropped)
- Related lab (Architectural Seismology and Geotechnics Lab): “Earthquake-resistant building (Tendjoresmi-PABA-PTPNVIII) - panoramio” de uguh / CC BY-SA 3.0 (cropped)
- Related lab (Social Infrastructure Design Lab): “Whittier Bridge- Arch span deck is ready for concrete ( )” MassDOT / Public domain (cropped)
- Related lab (Architectural and Urban Environmental Engineering Lab): “Air conditioning office building roof - public building air conditioning in Tokyo” Marek Ślusarczyk (Tupungato) Photo portfolio / CC BY 3.0 (cropped)
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