Experimental Tests on Hollow Core Slabs Made with FRC - On Shear Behavior of Structural Elements Made of Steel Fiber Reinforced Concrete - page 127

Table 7.5 Parameters used in l pt calculation
Series Specimen ID ʷ f ctd (t)

(MPa)

f bpt
(MPa)

(mm) ˃ l pt

(mm)

p1 pm0

(MPa)

I I-0-4.1 3.20 1.74 5.56 9.3 1007.77 400.20

I-0-4.3a 3.20 1.74 5.56 9.3 1007.77 400.20

I-0-4.3b 3.20 1.74 5.56 9.3 1007.77 400.20

I-50-3.1 3.20 1.66 5.30 9.3 1007.77 420.07

I-50-3.9a 3.20 1.66 5.30 9.3 1007.77 420.07

I-50-3.9b 3.20 1.66 5.30 9.3 1007.77 420.07

I-50-4.3 3.20 1.66 5.30 9.3 1007.77 420.07

I-50-4.4 3.20 1.66 5.30 9.3 1007.77 420.07

I-50-3.0a 3.20 1.66 5.30 9.3 1007.77 420.07

I-50-3.0b 3.20 1.66 5.30 9.3 1007.77 420.07

I-50-3.1c 3.20 1.66 5.30 9.3 1007.77 420.07

II II-0-2.3 2.70 1.51 4.07 5 913.64 350.62

II-0-3.4 2.70 1.51 4.07 5 913.64 350.62

II-0-3.4 (P) 2.70 1.51 4.07 5 913.64 350.62

II-0-8.6 2.70 1.51 4.07 5 913.64 350.62

II-50-2.3 2.70 1.38 3.72 5 913.64 384.10

II-50-3.4a 2.70 1.38 3.72 5 913.64 384.10

II-50-3.4 (P) 2.70 1.38 3.72 5 913.64 384.10

II-50-3.4b 2.70 1.38 3.72 5 913.64 384.10

II-50-8.6 2.70 1.38 3.72 5 913.64 384.10

II-70-2.3a 2.70 1.32 3.57 5 913.64 400.33

II-70-2.3b 2.70 1.32 3.57 5 913.64 400.33

II-70-3.4a 2.70 1.32 3.57 5 913.64 400.33

II-70-3.4 (P) 2.70 1.32 3.57 5 913.64 400.33

II-70-3.4b 2.70 1.32 3.57 5 913.64 400.33

II-70-8.6 2.70 1.32 3.57 5 913.64 400.33

7.3 Tests Results and Analysis

7.3.1 Failure Modes

Different failure modes were observed.

7.3.1.1 Shear Failure Modes

Shear-Flexure Failure (SF)

On the shear- exure cracks initially developed but,

eventually, one of them caused the failure. The failure crack was always situated in

fl exure failures (Fig. 7.7 ), fl