UB – universal beams

914x305x224

Standard: BS 4-1:2005Source: Primary geometry (h, b, tw, tf, r) — calculated properties (exact engine)
Range derived from BS 4-1; to be confirmed with the SAISC Red Book.
xybf = 304.1d = 910.4tf = 23.9tf = 23.9tw = 15.9tw = 15.9
Cross-section, to scaledimensions in mm

Dimensions

Depthd
910.4mm
Flange widthbf
304.1mm
Web thicknesstw
15.9mm
Flange thicknesstf
23.9mm
Root radiusr
19.1mm

Mass and area

Mass per lengthm
224.2kg/m
Cross-sectional areaA
28,565mm²
Outside perimeterP
2,973mm

Strong axis x–x

Moment of inertiaIx
3,76410⁶ mm⁴
Elastic section modulusSx
8,26910³ mm³
Plastic section modulusZx
9,53510³ mm³
Radius of gyrationrx
363mm

Weak axis y–y

Moment of inertiaIy
112.410⁶ mm⁴
Elastic section modulusSy
73910³ mm³
Plastic section modulusZy
1,16310³ mm³
Radius of gyrationry
62.72mm

Torsion and stability

Torsional constantJ
4,27210³ mm⁴
Warping constantCw
22,00910⁹ mm⁶

Equivalents in other standards