To simulate the effect of an earthquake on a rigid building, Ask an Expert

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To simulate the effect of an earthquake on a rigid building, the base is assumed to be connected to the ground through two springs: K_h for the translation al stiffness, and

640_Rigid building.jpg

Kr for the rotational stiffness. If the ground is now given a harmonic motion, Y_g = Y_c sin^ωt, set up the equations of motion in terms of the coordinates shown in Figure.

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