Table 4: Strength characteristics of tested beams.

Beam
Spe.
Pcr
(kN)
% Diff. of crack load Py
(kN)
% Diff. of Yield load Pu
(kN)
% Diff. of Ult. load Δy % Diff. of Δy Δu % Diff. of Δu Ductility
Failure
B1 30 ----- 90 ----- 109 ----- 6.2 ----- 22.5 ----- 3.63 Flexural
B2 32 ----- 110 ----- 116 ---- 6.0 ----- 8.50 ----- 1.32 Shear
B3 35 9.40 171 55.5 181 56.0 9.6 60.0 11.1 30.6 1.15 Shear
B4 35 9.40 190 72.7 210 81.0 11.6 93.3 21.4 151.7 1.84 Flexural
B5 34 6.30 190 72.7 205 76.7 11.8 96.6 35.0 311.8 2.96 Flexural
B6 37 15.6 200 81.8 226 94.8 11.6 93.3 34.0 300.0 2.93 Flexural