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If the height of the columns is reduced by half in the structure as shown in the figure, calculate the stiffness(k) and the natural period(T). (Ignore the structure's weight and assume the beam is infinite stiffness. g=9.81m/sec^2, E=205GPa, I=72.1*10^6mm^4)
Given that
Height = 6m
Reduced in to half = 6\2 = 3m
G = 9.8m\sec2
E = 205 gpa
I = 72.1*106mm4
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