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Structural Engineering, Materials Engineering, and Disaster Prevention (Fuminobu Ozaki) Lab
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A lab that investigates the safety of steel-framed buildings in fires through experiments and analysis.
AboutAbout the lab
Investigating the safety of steel buildings in fires
The lab of Professor Fuminobu Ozaki studies how steel-framed buildings fail in a fire, with the aim of developing fire-resistant design techniques.
Its research keywords are structural fire resistance, structural engineering, steel structures, fire engineering, and reliability engineering.
The lab conducts experiments in which steel materials and connections are heated and loaded, as well as numerical analysis.
Whether a building can be quickly restored and reused after a fire is also a subject of its research.
Key terms
- Strain rate
- The speed at which a material deforms. The strength of steel in a fire also changes with this speed.
- Fire protection coating
- A coating applied to the surface of steel framing to keep it from weakening in the heat of a fire.
- Resilience
- The ability of a building to recover to its original state after a fire.
ResearchResearch themes
The lab studies the behavior of steel-framed buildings in fires, aiming to develop fire-resistant design techniques. Through experiments and analysis, it examines how much load steel materials, members, and connections can withstand at high temperatures.
*Illustrative imageStrain Rate and High-Temperature Strength of Steel
The strength of steel heated in a fire also depends on how quickly it deforms (strain rate). The lab examines this relationship through high-temperature tensile tests, evaluation of the bending strength of beams, and numerical analysis.
*Illustrative imageDesign of Steel Structures Without Fire Protection Coating
The lab aims to develop fire-resistant design techniques that work even for steel structures without fire protection coating. It also examines the load-bearing capacity of members, such as braces, that are not counted as fire-resistant members, and how likely a fire involving an entire compartment is to occur.
*Illustrative imageFire Resistance of Connections and Steel Columns
Using high-temperature loading tests and other methods, the lab examines how much load bolted connections, welds, and slender steel columns can withstand during a fire, and after being heated and then cooled.
*Illustrative imagePost-Fire Recovery and Resilience
The lab explores structures that require a smaller extent of repair or replacement after a fire. Focusing on redundancy, the ability to share loads during a fire, it evaluates post-fire resilience.
MembersFaculty
- ProfessorFuminobu Ozaki
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: “Tu braunschweig panel furnace preparation” Achim Hering / CC BY 3.0 (cropped)
- Strain Rate and High-Temperature Strength of Steel: “Scientists test the tensile strength of steel samples, Sorel Steel plant, Quebec Des scientifiques déterminent la résistance à la traction d'échantillons d'acier, aciérie Sorel Steel (Québec) ( )” BiblioArchives / LibraryArchives / CC BY 2.0 (cropped)
- Design of Steel Structures Without Fire Protection Coating: “Steel Frame Commercial Building Under Construction, Ann Arbor Township, Michigan” Dwight Burdette / CC BY 3.0 (cropped)
- Fire Resistance of Connections and Steel Columns: “Steel floor joist bolted connection detail, Stone County Missouri” K&K Data Service Inc. / CC BY 4.0 (cropped)
- Post-Fire Recovery and Resilience: “Kennelbach-Fire-damaged building-01ASD” Asurnipal / CC BY-SA 4.0 (cropped)
- Related lab (Kimura Lab): “"Shells" - The Sydney Opera House's iconic roof (visitors digitally removed) ( )” Jorge Láscar from Melbourne, Australia / CC BY 2.0 (cropped)
- Related lab (Nagae Lab (Earthquake Engineering and Disaster Prevention Group)): “Lunch atop a Skyscraper” 作者不詳 / Public domain (cropped)
- Related lab (Noda-Nakai Lab (Geotechnical Disaster Prevention Engineering Group)): “Soil-liquefaction at Shinkiba after 2011 Tohoku Pacific Ocean offshore earthquake” Morio / CC BY-SA 3.0 (cropped)
- Related lab (Nakano-Sakai Lab (Geomechanics, Soil Mechanics and Foundation Engineering Group)): “Triaxial test sample” Builderpb / CC BY-SA 4.0 (cropped)
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