Question: Consider a SDOF system with mass, m = 2 x 10 kg, stiffness, k = 60 kN/m and damping, c = 0.44 kN.sec/m. Using

Consider a SDOF system with mass, m = 2 x 10 kg,

Consider a SDOF system with mass, m = 2 x 10 kg, stiffness, k = 60 kN/m and damping, c = 0.44 kN.sec/m. Using the response spectra of El-Centro, 1940 earthquake, compute (a) Maximum relative displacement, (b) Maximum base shear. Displacement Spectra, S. (m) 0.5 0.4 0.3 0.2 0.1 0.0 0.0 = 0.02 0.5 0.05 0.1 1.0 2.0 2.5 Acceleration Spectra, S. (m/sec) 3.0 14 12 10 0 1.5 1.5 Time Period (sec) Time Period (sec) Displacement response spectra of El-Centro, 1940 earthquake ground motion. Acceleration response spectra of El-Centro, 1940 earthquake ground motion Fig. 1 Fig. 2 0.0 0.5 1.0 2.0 = 0.02 -0.05 -0.1 2.5 3.0

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