Research Article
Research on the Estimation Method of the Stiffness Degeneration Index of Reinforced Concrete Members
Figure 5
DK,k-k relations of specimens R1 to R24. (a) Group 1. (b) Group 2. (c) Group 3. (d) Group 4. (e) Group 5. (f) Group 6. (g) Group 7. (h) Group 8.
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