TOKYO—Bridgestone Corp. has supplied seismic isolation bearings for two newly constructed, permanent venues for the Olympic and Paralympic Games Tokyo 2020.
It supplied the technology to the Tokyo Aquatics Center, where swimming, diving and artistic swimming competitions will be held, and Ariake Arena, where volleyball and wheelchair basketball will be contested for Tokyo 2020, according to a Bridgestone news release.
The two new buildings, set to be completed in 2019, use a roof seismic isolation structure featuring the bearings, which range in size between 600mm and 1,800mm. Installing the bearings beneath the roof instead of under the foundation of the venue helps lower the burden placed on the roof's structural support elements, Bridgestone said.
Seismic isolation bearings are flexible structural supports that isolate a structure from the ground to help reduce the spread of seismic shock and reduce the chance of damage in an earthquake. Bridgestone said this type of installation is often used in hall or dome-shaped facilities with large, open spaces such as sporting arenas.