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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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