Table 2
Mode shapes of LWF + CFF.
| Mode | Frequency (Hz) | Wooden base floor of LWF + CFF | Concrete floating layer of LWF + CFF |
|---|---|---|---|
| 1 | 19 | (1s*, 1s) | (1s, 1s) |
| 2 | 28 | (0f, 1s) | (0f, 1s) |
| 3 | 40 | (1s*, 2s) | (1s, 0f) |
| 4 | 110 | (1f, 1s) | (1f, 1f) |
| 5 | 200 | (2f, 2s) | (2f, 3f) |
(m, n) indicates the modal number for simply-supported or free boundary conditions [16]. m represents the x-direction and n represents the y-direction. The suffixes s and f are added to indicate the mode shape that corresponds to the simply-supported and free boundary conditions respectively. The asterisk * indicates that the mode does not show a clear boundary condition but was instead assigned the most probable boundary condition.
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