UB – universal beams

1016x305x350

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 = 302d = 1,008tf = 40tf = 40tw = 21.1tw = 21.1
Cross-section, to scaledimensions in mm

Dimensions

Depthd
1,008mm
Flange widthbf
302mm
Web thicknesstw
21.1mm
Flange thicknesstf
40mm
Root radiusr
30mm

Mass and area

Mass per lengthm
349.4kg/m
Cross-sectional areaA
44,513mm²
Outside perimeterP
3,130mm

Strong axis x–x

Moment of inertiaIx
7,23010⁶ mm⁴
Elastic section modulusSx
14,34510³ mm³
Plastic section modulusZx
16,59010³ mm³
Radius of gyrationrx
403mm

Weak axis y–y

Moment of inertiaIy
184.610⁶ mm⁴
Elastic section modulusSy
1,22310³ mm³
Plastic section modulusZy
1,94110³ mm³
Radius of gyrationry
64.4mm

Torsion and stability

Torsional constantJ
17,07210³ mm⁴
Warping constantCw
43,01510⁹ mm⁶

Equivalents in other standards