Research Article
Experiment on Natural Frequency Change of Reinforced Concrete Members under Low Cycle Loading
Table 1
Basic parameters of test members.
| | Group (specimen number) | Section size (mm) | Reinforcement ratio (%) | Section size of ground beam (mm) | Area 1 of stirrups | Area 2 of stirrups | Area 3 of stirrups | Amount of specimens |
| | 1st group (Z1–9) | 250 ∗ 350 | 1.4 | 400 ∗ 500 | 6@50 | 6@100 | 8@100 | 9 | | 2nd group (J1–9) | 320 ∗ 450 | 1.3 | 400 ∗ 500 | 8@50 | 8@100 | 10@100 | 9 | | 3rd group (M1–9) | 286 ∗ 400 | 1.6 | 400 ∗ 500 | 8@50 | 8@100 | 10@100 | 9 |
|
|
