Research Article

Research on the Estimation Method of the Stiffness Degeneration Index of Reinforced Concrete Members

Figure 13

The process of the quasi-stable normalized effective amplitude for specimen R24. (a). The value of μk of specimen R24. (b) Removal of the data points under the line of μk = 1. (c) Averaging of the similar values of μk.
(a)
(b)
(c)