UB – universal beams

356x127x39

Standard: BS 4-1:2005Source: Primary geometry (h, b, tw, tf, r) — calculated properties (exact engine)
Singapore uses BS / BS EN sections; same data as the United Kingdom.
xybf = 126d = 353.4tf = 10.7tf = 10.7tw = 6.6tw = 6.6
Cross-section, to scaledimensions in mm

Dimensions

Depthd
353.4mm
Flange widthbf
126mm
Web thicknesstw
6.6mm
Flange thicknesstf
10.7mm
Root radiusr
10.2mm

Mass and area

Mass per lengthm
39.07kg/m
Cross-sectional areaA
4,977mm²
Outside perimeterP
1,180mm

Strong axis x–x

Moment of inertiaIx
101.710⁶ mm⁴
Elastic section modulusSx
575.610³ mm³
Plastic section modulusZx
658.510³ mm³
Radius of gyrationrx
143mm

Weak axis y–y

Moment of inertiaIy
3.57810⁶ mm⁴
Elastic section modulusSy
56.810³ mm³
Plastic section modulusZy
89.0510³ mm³
Radius of gyrationry
26.81mm

Torsion and stability

Torsional constantJ
151.510³ mm⁴
Warping constantCw
104.710⁹ mm⁶

Equivalents in other standards