Punching Shear Failure of Concrete Ground Supported Slab

International Journal of Concrete Structures and Materials

Table 1 Evaluation of real location of the crack.

Section number	Values relative to the level of reinforcement				Values relative to the level of the lower surface of the slab
Section number	Distance of the crack from the centre of the loaded area (mm)	Distance of the crack from the loaded area (mm)	Ratio d	Angle of inclination (°)	Distance of the crack from the centre of the loaded area (mm)	Distance of the crack from the loaded area (mm)	Angle of inclination (°)
1	247	147	1.79	29.01	409	309	13.20
2	228	128	1.56	32.39	333	233	19.88
3	231	131	1.60	31.81	331	231	20.78
4	299	199	2.43	22.36	453	353	13.86
5	254	114	1.39	35.32	336	196	24.80
6	283	143	1.74	29.67	428	288	14.68
7	252	112	1.37	35.77	304	164	35.73
8	283	143	1.74	29.67	434	294	14.12
Average value	259.63	139.63	1.70	30.75	378.50	258.50	19.63
Determinative deviation s	24.27	25.57	0.31	3.96	54.42	59.01	7.22
Variation range R	71.00	87.00	1.06	13.42	149.00	189.00	22.53