Author(s)

R. Masih

Abstract

Any structure has structural and non structural masses. Those masses are usually integrated together When an earthquake strikes, those huge masses create destructive lateral and vertical inertia forces proportionate to the masses and their accelerations, regardless if they are structural or nonstructural masses This new concept divides the structure to two parts The part which is connected to the ground is called the main supporting structure It should be made as rigid as possible and as massless as possible to increase its fundamental natural frequency to a level higher than the earthquake frequency if possible. The rest of the secondary structural and nonstructural masses are supported on top of the main supporting structure, such that they can swing and move laterally to certain extent under spr

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