Civil Insight: A Technical Magazine Volume 3 | Page 35

Bhatt M.R. Civil Insight (2019) 29-36 response 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 ξ= 100% ξ= 70% ξ= 20% ξ= 10% ξ= 1% ξ= 0% 0 0.5 1 1.5 Frequency Ratio (ߚ) 2 2.5 Fig. 7. Deformation response factor R d for a damped system excited by harmonic loading 13 12 11 10 9 8 7 6 5 4 3 2 1 0 ξ= 100% ξ= 70% ξ= 20% ξ= 10% ξ= 1% ξ= 0% 0 0.5 1 1.5 Frequency Ratio (ߚ) 2 2.5 Fig. 8. Velocity response factor R v for a damped system excited by harmonic loading 13 12 11 10 9 8 7 6 5 4 3 2 1 0 ξ= 100% ξ= 70% ξ= 20% ξ= 10% ξ= 1% ξ= 0% 0 0.5 1 1.5 Frequency Ratio (ߚ) 2 Fig. 9. Acceleration response factor R a for a damped system excited by harmonic loading 35 2.5