Anti-Impact Performance Enhancement of Two-Way Spanning Slab through the Implementation of Steel Trussed Bars

Table 2

Experimental results from installed instruments of control samples.

Specimen	Acceleration (g)				The mean number of drops until initial cracking	The mean drop count until total deterioration	Initial deformation of concrete upon impact (με)		Primary steel strain at initial impact (με)		Reduction in primary steel strain upon complete failure (με)
	First drop		Complete failure				Left	Right	Top	Bottom	Top	Bottom
	Max	Min	Max	Min
Control sample 1	90.38	−79.87	197.4576	−290.4	5	124	185	226.9	155.88	337.2	188.34	535.98
Control sample 2	102.5	−98.7	180.9	−224.96			177.5	301	213	378	254.852	656.2
Control sample 3	92.78	−104.67	191.64	−298.79			248.7	347.66	171	259	144.866	499.2