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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 tower's structure was designed to be earthquake-proof and the facades were modelled in high-tech Spanish glass with the role of regulating the entry of sunlight and heat during daytime. [ 6 ] The building has six underground floors designed to fit approximately 400 parking spots.
A 6.8-magnitude earthquake hit Morocco on Friday evening, causing structural damage and shaking throughout the north African country. No deaths or injuries were immediately reported in the quake ...
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]
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.
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.
The United States Geological Survey reported at least four aftershocks around Port Vila - with magnitudes ranging from 4.7 to 5.5 - in the two hours after the first earthquake.
The deputy mayor of Léogâne, which was at the epicenter of the earthquake, reported that 90% percent of the buildings in that city had been destroyed and Léogâne had "to be totally rebuilt." [ 2 ] Many notable landmark buildings were significantly damaged or destroyed, including the Presidential Palace , the National Assembly building, the ...