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Table 2 Summary of four-point bending results for single and double connector configurations.

From: Composite Behaviour of Textile Reinforced Reactive Powder Concrete Sandwich Façade Elements

Specimen ID Crack load
Pcr (kN)
Crack moment
Mcr (kNm)
Max load
Pmax (kN)
Max moment
Mmax (kNm)
Bending stiffness
EItest (kNm2)
Composite action
α (−)
EI1/EItest (%) αEI2/EItest (%)
S-1 3.8 1.5 8.5 3.4 415 0.021 33 67
S-2 3.2 1.3 11.3 4.5 510 0.029 26 74
S-3 4.2 1.7 10.6 4.2 399 0.020 34 66
Avg (std) 3.7 (0.4) 1.5 (0.2) 10.1 (1.2) 4.0 (0.5) 441 (49) 0.023 (0.004) 31 (3) 69 (3)
D-1 5.7 2.3 19.4 7.8 1247 0.085 11 89
D-2 3.7 1.5 17.4 7.0 1038 0.069 13 87
D-3 4.3 1.7 16.3 6.5 935 0.061 14 86
Avg (std) 4.6 (0.8) 1.8 (0.3) 17.7 (1.3) 7.1 (0.5) 1073 (130) 0.071 (0.010) 13 (1) 87 (1)