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Ishihara Lab
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A building structures lab studying earthquake-resistant buildings and non-structural elements.
AboutAbout the lab
Earthquake-resistant buildings, down to every last component
The lab conducts research on building structures and non-structural elements, focusing on countermeasures against natural disasters such as earthquakes.
It carries out loading tests and shaking table tests on non-structural elements such as ceilings and partition walls.
It also covers the uplift behavior of buildings during earthquakes, steel structures, and loads from rain falling after snowfall.
The lab was launched in April 2022 and aims to build the lab together with its students.
Key terms
- Non-structural elements
- Building components other than the frame that supports the building, such as ceilings and partition walls
- Shaking table test
- An experiment in which a specimen is placed on a table that reproduces earthquake shaking, to examine how it shakes and how it fails
- Floor response spectrum
- A representation of how much each floor of a building shakes, shown for each period of vibration
NewsLab news
Conducted a building damage survey after the Kumamoto earthquakes and released a preliminary report
A student received the Young Researcher Excellent Presentation Award in the Shell and Spatial Structures category at the Architectural Institute of Japan Annual Meeting
A student's research results were published in the Architectural Institute of Japan Kanto Chapter's collection of outstanding research reports
ResearchResearch themes
The lab conducts research on building structures and non-structural elements, focusing on countermeasures against natural disasters such as earthquakes. The research themes introduced here present past results, including results from previous positions at the National Institute for Land and Infrastructure Management and the Building Research Institute.
*Illustrative imageSeismic Performance of Non-Structural Elements
The lab targets building elements other than the structural frame, such as ceilings and partition walls. It conducts loading tests on ceilings, loading tests on ceilings with level differences, tests in which large-scale ceilings sway and collide, and shaking table tests on large-scale partition walls.
*Illustrative imageSeismic Design Forces for Non-Structural Elements
The lab investigates the seismic forces assumed when designing non-structural elements. It covers floor response spectra, which represent the shaking of each floor of a building, the relationship between story deformation and element deformation, and seismic response under forced deformation and inertial force.
*Illustrative imageReducing Damage from Uplift
The lab uses numerical analysis to study how buildings lift up during earthquakes, and conducts shaking table tests on single-story elastoplastic models and multi-story elastic models that involve uplift.
*Illustrative imageSteel Structures
The lab conducts tensile tests on thick steel plates and loading tests on truss beams.
MembersFaculty
The Ishihara Lab consists of faculty members and master's and undergraduate students.As of 2026
- ProfessorTadashi IshiharaPublications ↗
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: “Kochi City Culture-Plaza CUL-PORT03s3872” 663highland / CC BY 2.5 (cropped)
- Seismic Performance of Non-Structural Elements: “Abgehängte Decke” User:Mattes / Public domain (cropped)
- Seismic Design Forces for Non-Structural Elements: “Duzce 1999 earthquake damage Bilham 881” Roger Bilham / Public domain (cropped)
- Reducing Damage from Uplift: “Kinematically equivalent building models on a shake-table” Shustov / CC BY-SA 3.0 (cropped)
- Steel Structures: “VIEW ACROSS WARREN TRUSS BRIDGE LOOKING EASTERLY FROM WEST STONE ABUTMENT. THE STEEL FENCE PROHIBITS ACCESS ACROSS BRIDGE. - Double Intersection Warren Truss Bridge, Spanning HAER CONN,6-COLCH,4-1” 作者不詳 / Public domain (cropped)
- Related lab (中野研究室): “2015.04 - Amsterdam, photo of a building site - An excavation at the Sarphatistraat for a new hotel; a geotagged free urban picture, in public domain Commons CCO; city photography by Fons Heijnsbroek, The Netherlands ( )” Fons Heijnsbroek from Amsterdam, Netherlands / CC0 (cropped)
- Related lab (樋本研究室): “Fire and Flames 0461” Amada44 / CC BY 4.0 (cropped)
- Related lab (山崎義弘研究室): “Byggnadsstomme2” Entheta / CC BY-SA 3.0 (cropped)
- Related lab (三井研究室): “2512-superstructure-métallique” Thierry Caro, pour le magazine 2512. / CC BY-SA 2.5 (cropped)
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