Table 4 Coefficients of ϕd for Eq. 15 and horizontal response, where j=2i−1 and i is a natural number
\(r^{*}_{l,n}\) interval | C1 | C2 |
|---|---|---|
[0.95,1] | (−147×104ζ3+77.6×103ζ2+ | 0.95 |
[1,1.05] | −1540ζ+6.29) | 1.05 |
[j−0.05,j] | (−49×104ζ3+25.87×103ζ2+ | j−0.05 |
[j,j+0.05] | −513.3ζ+2.097) | j+0.05 |