10 Technologies That Help Buildings Resist Earthquakes


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Cardboard Tubes
In this illustration, you can see the cardboard cathedral designed by Japanese architect Shigeru Ban. The temporary structure, which also uses timber, steel and a concrete base, will accommodate 700 patrons while a permanent cathedral is built. Christchurch Cathedral via Getty Images

And what about developing countries, where it's not economically feasible to incorporate anti-earthquake technologies into houses and office buildings? Are they doomed to suffer thousands of casualties every time the earth shakes? Not necessarily. Teams of engineers are working all over the world to design earthquake-resistant structures using locally available or easily obtainable materials. For example, in Peru, researchers have made traditional adobe structures much stronger by reinforcing walls with plastic mesh. In India, engineers have successfully used bamboo to strengthen concrete. And in Indonesia, some homes now stand on easy-to-make bearings fashioned from old tires filled with sand or stone.

Even cardboard can become a sturdy, durable construction material. Japanese architect Shigeru Ban has designed several structures that incorporate cardboard tubes coated with polyurethane as the primary framing elements. In 2013, Ban unveiled one of his designs -- the Transitional Cathedral -- in Christchurch, New Zealand. The church uses 98 giant cardboard tubes reinforced with wooden beams [source: Slezak]. Because the cardboard-and-wood structure is extremely light and flexible, it performs much better than concrete during seismic events. And if it does collapse, it's far less likely to crush people gathered inside. All in all, it makes you want to treat the cardboard tubes nestled in your toilet paper roll with a little more respect.

Author's Note: 10 Technologies That Help Buildings Resist Earthquakes

When the 2011 Virginia earthquake struck, I was about 55 miles (89 kilometers) from the epicenter. It produced a locomotive-like rumbling and moved the earth in an unsettling way that's hard to describe. In the small towns of Louisa and Mineral, near my mother's house, a couple of structures collapsed, and many more experienced significant damage. While the quake itself was frightening, what was more disturbing was our collective sense that, being so far from the Ring of Fire and the constant threat of tectonic activity, we were somehow insulated from these kinds of events. Makes me wonder if the building codes in Virginia have been updated to incorporate some of these earthquake-resistant technologies.

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Sources

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