UB – universal beams

1016x305x415

Standard: BS 4-1:2005Source: Primary geometry (h, b, tw, tf, r) — calculated properties (exact engine)
xybf = 304d = 1,020tf = 46tf = 46tw = 26tw = 26
Cross-section, to scaledimensions in mm

Dimensions

Depthd
1,020mm
Flange widthbf
304mm
Web thicknesstw
26mm
Flange thicknesstf
46mm
Root radiusr
30mm

Mass and area

Mass per lengthm
415kg/m
Cross-sectional areaA
52,869mm²
Outside perimeterP
3,153mm

Strong axis x–x

Moment of inertiaIx
8,53110⁶ mm⁴
Elastic section modulusSx
16,72810³ mm³
Plastic section modulusZx
19,57110³ mm³
Radius of gyrationrx
401.7mm

Weak axis y–y

Moment of inertiaIy
217.110⁶ mm⁴
Elastic section modulusSy
1,42810³ mm³
Plastic section modulusZy
2,29810³ mm³
Radius of gyrationry
64.08mm

Torsion and stability

Torsional constantJ
27,13310³ mm⁴
Warping constantCw
51,08410⁹ mm⁶

Equivalents in other standards