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Building Safety Control Lab
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A lab that protects buildings and cities from earthquakes and fires.
AboutAbout the lab
Considering disasters at the scale of the city.
The Building Safety Control Lab comprehensively studies earthquake disaster prevention for buildings and cities, aiming to create safe and secure communities.
Going beyond individual buildings, the lab broadly studies disaster prevention for entire cities, as collections of buildings, through theory, experiments, surveys, and observation.
The lab develops methods for predicting damage from earthquakes and fires, uses simulations to predict damage, and considers measures to reduce it.
It is a lab of the Disaster Prevention Research Institute (Uji Campus), also known as the Sakai-Nishino Lab.
Key terms
- Vibration experiment
- An experiment in which a building or model is actually shaken, for example on a shaking table, to examine how it fails and how it sways.
- Period
- The time it takes for shaking to complete one cycle. Damage to buildings is strongly affected by the period of the shaking.
- Fire spread
- The spread of a fire from a burning building to the surrounding buildings.
ResearchResearch themes
Recent major earthquake disasters have once again shown the importance of earthquake disaster prevention. The lab conducts comprehensive research on earthquake disaster prevention for buildings and cities, aiming to build safe and secure cities through theory, experiments, surveys, and observation.
*Illustrative imageWhat Kind of Shaking Destroys Buildings?
Earthquake damage to buildings depends not only on seismic intensity but also on the characteristics of the shaking, particularly its period. The lab collects and analyzes damage data through field surveys right after earthquakes, and uses analysis and vibration experiments to investigate what kind of shaking causes severe damage.
*Illustrative imageUnderstanding the Seismic Performance of Existing Buildings
Buildings are designed and built by people, yet the seismic performance of completed buildings is not well understood. Through analysis of structural drawings and various other data, and vibration experiments on full-scale wooden buildings, the lab assesses the seismic performance of existing buildings.
*Illustrative imageEstimating Damage Right After an Earthquake and Assessing Future Damage Scenarios
Combining research on the relationship between shaking and damage with research on the seismic performance of buildings, the lab estimates where severe damage is occurring immediately after an earthquake. For future earthquakes, it predicts shaking through large-scale computations and pinpoints where shaking that causes severe damage will occur.
*Illustrative imagePredicting Post-Earthquake Fires and Firefighting Operations
In a huge earthquake, fires can break out simultaneously across urban areas, and if they cannot be extinguished, they may spread extensively. The lab predicts the post-earthquake fires that could occur in events such as an earthquake directly beneath the Tokyo metropolitan area, and conducts research evaluating the harm to people and the effectiveness of firefighting plans.
MembersFaculty
- ProfessorYuki Sakai
- Associate ProfessorTomoaki Nishino
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: “Earthquake damage in San Francisco's Marina District on the north side of the city from the Loma Prieta Earthquake” Nancy Wong / CC BY-SA 3.0 (cropped)
- What Kind of Shaking Destroys Buildings?: “Hayward earthquake 1868 damaged building 2” 作者不詳 / Public domain (cropped)
- Understanding the Seismic Performance of Existing Buildings: “Old City Hall - Berkeley - Stierch - 1” Sarah Stierch / CC BY 4.0 (cropped)
- Estimating Damage Right After an Earthquake and Assessing Future Damage Scenarios: “Seismic Hazard Map of Switzerland” SEDch / CC BY-SA 4.0 (cropped)
- Predicting Post-Earthquake Fires and Firefighting Operations: “Pompiers ste-anne-de-beaupré 2012” Letartean / CC BY 3.0 (cropped)
- Related lab (Building Construction Lab): “Reinforced concrete rusted rebars german bunkers Pointe du Hoc” Jebulon / CC0 (cropped)
- Related lab (Architectural Conservation and Regeneration Lab): “Fukuoka Parco Main Bldg the seismic retrofit Tenjin 2-chōme Chūō-ku Fukuoka 20240812” Hirho / CC BY-SA 4.0 (cropped)
- Related lab (Building Earthquake Engineering Lab): “Kinematically equivalent building models on a shake-table” Shustov / CC BY-SA 3.0 (cropped)
- Related lab (Earthquake Environmental Engineering Lab): “Overview Seismic Waves” LukeTriton, Steven Earle, Mario Bačić, Lovorka Librić, Danijela Jurić Kaćunić, Meho Saša Kovačević / CC BY-SA 4.0 (cropped)
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