Six-story steel frame building undergoes seismic testing on world’s largest outdoor shake table
A team of engineers is testing a six-story, lightweight steel-frame building on the world’s largest outdoor seismic shake table this month at the University of California San Diego. The goal is to better understand how cold-formed steel structures withstand earthquakes and the fires that may follow. This is the tallest cold-formed steel-frame structure to ever undergo tests on a shake table.
Light-steel structure buildings have the advantages of light weight materials, good resistance to earthquakes and fire, and so on.
To test how light steel structures can withstand earthquakes, in 2016, the engineering group of the University of California, Santa Maria, built a six-story light-steel structure on the world’s largest outdoor platform for high-rise light steel construction. Seismic test.
The seismic test simulation replicated the action of a 6.7-magnitude earthquake in California in 1994. At the time of the disaster, 57 people were killed and more than 8,700 people were injured.
The light-steel structure under test was a simulated multi-family residential building. In order to simulate the danger of an earthquake, the building was equipped with a water heater and a stove. In the event of a real earthquake, strong shaking and sensation may lead to the burning of these devices.
During the testing process, the engineering team also used drones to monitor and assess the damage in and after the earthquake in multiple directions.
Click on the video below to watch the earthquake test process. (Recommended to watch in WIFI environment)
Reprint From: JacobsSchoolNews
But in Lotus Modular‘s opinion,the test has certain limitations:
First, the 6-level seismic test is low. If 9-level seismic test, it will be more persuasive. Second,we did not see at any moment in the building people or anything that simulates the weight of the live loads, which represent a more aggressive seismic behavior, due to the increase of mass by live loads.
However, this test still shows the stability of the light steel structure to some extent.