Experimental and Analytical Study on the Vibration Performance of U-Shaped Steel-Concrete Composite Hollow Waffle Slab

Table 3

Damping ratio (%) owing to multiperson heel-drop tests.

Damping ratio (%)	A1	A2	A3	A4	A5
1 person	2.52	2.73	2.91	2.85	2.72
2 persons	2.55	2.86	3.04	2.92	2.83
3 persons	2.67	2.96	3.16	3.02	2.91
4 persons	2.72	2.99	3.22	3.08	2.95
5 persons	2.85	3.09	3.22	3.13	3.05