seismic mass

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• Seismic retrofit — Seismic retrofitting is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquakes. Other retrofit techniques are applicable to areas subject to tropical cyclones,… …   Wikipedia

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• Seismic hazard — refers to the study of expected earthquake ground motions at the earth s surface, and its likely effects on existing natural conditions and man made structures for public safety considerations; the results of such studies are published as seismic …   Wikipedia

• Seismic analysis — is a subset of structural analysis and is the calculation of the response of a building (or nonbuilding) structure to earthquakes. It is part of the process of structural design, earthquake engineering or structural assessment and retrofit (see… …   Wikipedia

• Tuned mass damper — An animation showing the movement of a skyscraper versus the mass damper. The green indicates the hydraulic cylinders used to damp the motion of the skyscraper. A tuned mass damper, also known as an active mass damper (AMD) or harmonic absorber,… …   Wikipedia

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• Household seismic safety — Contributions of photographs related to details of preparation are needed. Household seismic safety is an issue for areas of the world with a high risk of seismic activity, and is concerned with the following: *Appropriate securing of household… …   Wikipedia

• Mitigation of seismic motion — Main article: Earthquake engineering Mitigation of seismic motion is an important factor in earthquake engineering and construction in earthquake prone areas. The destabilizing action of an earthquake on constructions may be direct (seismic… …   Wikipedia

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• Piezoelectric sensor — A piezoelectric sensor is a device that uses the piezoelectric effect to measure pressure, acceleration, strain or force by converting them to an electrical signal.ApplicationsPiezoelectric sensors have proven to be versatile tools for the… …   Wikipedia

• Accelerometer — An accelerometer is a device for measuring acceleration and gravity induced reaction forces.Single and multi axis models are available to detect magnitude and direction of the acceleration as a vector quantity [http://www.analog.com/en/technical… …   Wikipedia