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Structural Analysis Lab
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A lab that computes the behavior of structures through numerical analysis to contribute to social safety and security.
AboutAbout the lab
Calculating the behavior of structures through numerical analysis.
The Structural Analysis Lab studies how to calculate the behavior of structures using computer-based numerical analysis (simulation).
The lab closely tracks and evaluates how structures behave, and how much load-bearing capacity they have, under natural disasters and external forces such as earthquakes, tsunamis, and impacts.
It also works on developing maintenance technologies so that structures can be used safely over the long term.
Key terms
- Numerical analysis
- A method of investigating the behavior of structures and other objects by computer calculation. Also called simulation
- Load-bearing capacity
- The ability of a structure to withstand forces (loads) applied from outside
- RC (reinforced concrete) structures
- Structures made of reinforced concrete
- Hammering test method
- An inspection method that detects defects inside concrete based on the sound made when it is struck
NewsLab news
A master's student received the Kyushu Branch President's Award of the Japan Concrete Institute
A master's student received an Excellent Presentation Award at the 13th Kyushu Bridge and Structural Engineering Research Symposium
ResearchResearch themes
At the center of its research is computer-based numerical analysis (simulation). The lab tracks and evaluates how structures behave, and how much load-bearing capacity they have, under natural disasters and external forces such as earthquakes, tsunamis, and impacts. It also focuses on developing maintenance technologies so that structures can be used safely for a long time, and through cutting-edge analysis techniques it aims to contribute to a society that is resilient to disasters and economically rational.
*Illustrative imageStructural Analysis for Impact and Disaster Prevention
Interest in impact problems has been growing in recent years. To trace how structures fail when subjected to impact, the lab develops analysis methods based on the finite element method and the SPH method, and performs structural analysis with them.
*Illustrative imageNew Approaches to Structural Maintenance
The number of structures that have been in service for more than 50 years is increasing, while the personnel to manage them are in short supply. The lab examines detecting defects inside RC structures using the hammering test method and thermographic cameras, and in recent years has also been advancing defect detection by machine learning using accumulated hammering sound data.
*Illustrative imageEvaluating the Capacity of Aging Structures
As the number of aging social infrastructure structures grows, there is a need to propose more durable structures. Using numerical analysis based on the finite element method, the lab models actual structures as faithfully as possible to clarify the capacity of existing structures and to demonstrate the validity of new structures.
MembersFaculty
The members of the Structural Analysis Lab are faculty, technical staff, and doctoral, master's, and undergraduate students.As of 2026
- ProfessorYoshimi Sonoda
- Associate ProfessorHiroki Tamai
- Assistant ProfessorChi Lu
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: “Static Structural Analysis of a Gripper Arm” SimScale GmbH / CC BY-SA 4.0 (cropped)
- Structural Analysis for Impact and Disaster Prevention: “Boeing 720 Controlled Impact Demonstration” NASA / Public domain (cropped)
- New Approaches to Structural Maintenance: “Steel Bridge Inspection - Snooper truck” Oregon Department of Transportation / CC BY 4.0 (cropped)
- Evaluating the Capacity of Aging Structures: “The Old Bridge, Bridgend, S Wales b5” Jaggery / CC BY-SA 2.0 (cropped)
- Related lab (地盤工学研究室): “Geotechnical equipment in Bellevue, WA” SounderBruce / CC BY-SA 4.0 (cropped)
- Related lab (災害数理研究室): “Tsunami simulations Ofunato City” Ōfunato City, Prefecture Iwate, Japan / CC BY 3.0 igo (cropped)
- Related lab (地震工学研究室): “View of the Five-storied Pagoda from the Lotus Pond, Tō-ji Temple, Kyoto” Jakub Hałun / CC BY 4.0 (cropped)
- Related lab (建設材料システム工学研究室): “Kintsugi on broken Kyūsu lid-bottom PNr°1259” D-Kuru / CC BY-SA 4.0 (cropped)
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