Steel web shear capacity: validation

Every formula and clause of Steel web shear capacity was compared by hand with CSA S16-19, and every row matched, on 2026-09-29. The rows below are read from the calculation itself at its declared values, so they are the formulas the page runs today.

Formulas

NameSymbolicClauseAgainstDate
h_w\(\displaystyle \frac{h}{w}\)CSA S16-19 Cl. 13.4.1.1 a) (h/w; h and w per Cl. 3)2026-09-29
root_F_y\(\displaystyle \sqrt{F_{y} \cdot 1\ \mathrm{MPa}}\)CSA S16-19 Cl. 13.4.1.1 a) (sqrt(F_y), F_y in MPa)2026-09-29
h_w_1\(\displaystyle 1014 \cdot \frac{1\ \mathrm{MPa}}{\mathrm{root}_{F,y}}\)Cl. 13.4.1.1 a) i)CSA S16-19 Cl. 13.4.1.1 a) i) (limit 1014/sqrt(F_y))2026-09-29
h_w_2\(\displaystyle 1435 \cdot \frac{1\ \mathrm{MPa}}{\mathrm{root}_{F,y}}\)Cl. 13.4.1.1 a) ii), iii)CSA S16-19 Cl. 13.4.1.1 a) ii), iii) (limit 1435/sqrt(F_y))2026-09-29
F_s\(\displaystyle 0.66 \cdot F_{y}\)Cl. 13.4.1.1 a) i), shear yieldingCSA S16-19 Cl. 13.4.1.1 a) i), ii), iii) (all three arms read against the clause)2026-09-29
A_w\(\displaystyle h \cdot w\)Cl. 13.4.1.1, girder formCSA S16-19 Cl. 13.4.1.1 (A_w = hw for girders)2026-09-29
V_r\(\displaystyle 0.9 \cdot A_{w} \cdot F_{s}\)Cl. 13.4.1.1, phi = 0.90 per Cl. 13.1 a)CSA S16-19 Cl. 13.4.1.1 (V_r = phi A_w F_s; phi = 0.90 per Cl. 13.1 a)2026-09-29

Clauses

ClauseStepsAgainstDate
Cl. 13.4.1.1 a) i)h_w_1CSA S16-19 Cl. 13.4.1.1 a) i)2026-09-29
Cl. 13.4.1.1 a) ii), iii)h_w_2CSA S16-19 Cl. 13.4.1.1 a) ii), iii)2026-09-29
Cl. 13.4.1.1 a) i), shear yieldingF_sCSA S16-19 Cl. 13.4.1.1 a) i), shear yielding2026-09-29
Cl. 13.4.1.1, girder formA_wCSA S16-19 Cl. 13.4.1.1, girder form2026-09-29
Cl. 13.4.1.1, phi = 0.90 per Cl. 13.1 a)V_rCSA S16-19 Cl. 13.4.1.1 and Cl. 13.1 a) (phi = 0.90, structural steel)2026-09-29