# Earthquake performance simulation

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**Earthquake performance simulation** is meant to study effect of earthquakes on building structures and is a practical way of seeing a thing to happen without it actually taking place in the same way. There are research institutions just devoted to earthquake performance simulations, like, e.g., *The George E. Brown, Jr. Network for Earthquake Engineering Simulation* or NEES.

## Physical earthquake performance simulationEdit

The best way to do it is to put the structure on a shake-table that simulates the seismic loads and watch what may happen next (if you have no time to stand out in the field and wait for a real earthquake to strike, of course). The earliest experiments like this were performed more than a century ago^{[1]}

## Computational earthquake performance simulationEdit

Another way is to evaluate the earthquake performance analytically. The very first earthquake simulations were performed by statically applying some *horizontal inertia forces*, based on scaled peak ground accelerations, to a mathematical model of a building ^{[2]}.
With the further development of computational technologies, statics approaches began to give way to dynamics ones ^{[3]}.

## Earthquake performance animationEdit

GIF animation of a seismic performance of building models at a variety of ground shaking may be an effective means of research and education.

## ReferencesEdit

- ↑ Omori, F. (1900).
*Seismic Experiments on the Fracturing and Overturning of Columns*. Publ. Earthquake Invest. Comm. In Foreign Languages, N.4, Tokyo. - ↑ Lindeburg, Michael R.; Baradar, Majid (2001).
*Seismic Design of Building Structures*. Professional Publications. ISBN 1888577525. - ↑ Clough, Ray W.; Penzien, Joseph (1993).
*Dynamics of Structures*. McGraw-Hill. ISBN 0070113947.