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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.
One of the early examples of the earthquake design strategy is the one given by Dr. J.A. Calantariens in 1909. It was proposed that the building can be built on a layer of fine sand, mica or talc that would allow the building to slide in an earthquake, thereby reducing the forces transmitted to building.
In earthquake engineering, a metallic roller bearing is a base isolation device which is intended for protection of various building and non-building structures against potentially damaging lateral impacts of strong earthquakes. This bearing support may be adapted, with certain precautions, as a seismic isolator to skyscrapers and buildings on ...
In 2008, the Steven T. Huff Family LLC applied for a construction permit to begin construction of the Pensmore mansion—made unique because it is an insulated concrete form structure designed to showcase sustainable construction techniques on a large scale, with it being designed to be earthquake resistant, bullet resistant, blast resistant, capable of withstanding an EF5 tornado, bug ...
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.
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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]
Model of the seismically protective wooden structure, the "gaiola pombalina" (pombaline cage), developed for the reconstruction of Lisbon. A gaiola pombalina (Pombaline cage; Portuguese pronunciation: [ɡɐjˈjɔlɐ]) is a masonry building reinforced with an internal wooden cage, developed as an anti-seismic construction system in Portugal after the 1755 Lisbon earthquake and implemented ...