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Earthquake-resistant or aseismic structures are designed to protect buildings to some or greater extent from earthquakes. While no structure can be entirely impervious to earthquake damage, the goal of earthquake engineering is to erect structures that fare better during seismic activity than their conventional counterparts.
The foundation of the hotel was designed with interlocking log beams, which made the structure "earthquake-proof" and one of the few buildings to remain standing after the 1923 Great Kanto Earthquake that crumbled Tokyo. [6]
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Steel structures are considered mostly earthquake resistant but some failures have occurred. A great number of welded steel moment-resisting frame buildings, which looked earthquake-proof, surprisingly experienced brittle behavior and were hazardously damaged in the 1994 Northridge earthquake. [59]
Modification and earthquake resistant design are also employed in elevated freeways and bridges. Codes are not designed to make buildings earthquake proof in the sense of them suffering zero damage. The goal of most building designs is to reduce earthquake damage to a building such that it protects the lives of occupants and thus tolerance of ...
Seismic retrofitting is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquakes.With better understanding of seismic demand on structures and with recent experiences with large earthquakes near urban centers, the need of seismic retrofitting is well acknowledged.
Tsunami-proof design of Ocosta Elementary School, Washington. In the United States, there is a recognized lack of tsunami-proof design, especially in vital installations such as aging nuclear reactors in vulnerable regions. [3] For instance, the Unified Building Code of California does not have any provision about designing for tsunamis. [4]
Earthquake experts debunk myths like, doorways are the safest place, California will fall into the ocean, we're overdue for the "big one," and more.