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The shaking of an earthquake on a 10-storey tower in the UCSD simulator will test the strength of tall wooden buildings

The shaking of an earthquake on a 10-storey tower in the UCSD simulator will test the strength of tall wooden buildings

 


Engineers at the Outdoor Earthquake Simulator at the University of California, San Diego, are nearing completion of a 10-story wooden tower that will undergo intense tremors to explore how tall wooden structures can handle earthquakes and other natural disasters.

This is the tallest building ever on the Scripps Ranch shaking table, which just underwent a $16.3 million upgrade that will enable researchers around the world to more realistically simulate earthquakes.

The new project is being spearheaded by the Colorado School of Mines, which will subject the tower to a tremor equivalent to the 6.7-magnitude Northridge earthquake that struck Los Angeles County’s San Fernando Valley in 1994, killing 60 people. The test will start in February.

The 1994 Northridge earthquake caused severe damage and 60 deaths.

(News agency)

The tower is mostly made of wood laminated with steel, which makes it different from traditional high-rise buildings, which are mostly steel and concrete.

“We are trying to see if we can construct huge wooden buildings that are resilient in high seismic zones,” said Shiling Pei, a School of Mining engineer and co-director of the project.

In this case, resilience refers to the building’s ability to withstand strong vibration without causing structural damage.

As noted by engineers, wood has been used in the construction of buildings for thousands of years. But they say advances in design make it possible to efficiently build strong and safe structures of eight stories or more composed primarily of wood. This concept is pursued so strongly in part because wood is a sustainable material.

Earlier this year, construction was completed on the Ascent, a 25-story mixed-use residential tower in Milwaukee that is made primarily of wood. It is the tallest building of its kind in the world.

Unlike Southern California, Ascent is not located in a highly active seismic zone. Engineers won’t know how resilient tall log buildings really are until they complete the kind of vibration experiment that will occur at Scripps Ranch.

Pei hopes things will go well, saying, “A lot of [tall timber] Construction is ready at the factory. Everything cut neatly. Everything fits. You can install it like IKEA furniture.” ◆

Sources

1/ https://Google.com/

2/ https://www.lajollalight.com/news/story/2022-12-01/quake-shake-on-10-story-tower-at-ucsd-simulator-will-test-the-mettle-of-tall-wood-buildings

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