UB – universal beams

1016x305x494

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 = 309d = 1,036tf = 54tf = 54tw = 31tw = 31
Cross-section, to scaledimensions in mm

Dimensions

Depthd
1,036mm
Flange widthbf
309mm
Web thicknesstw
31mm
Flange thicknesstf
54mm
Root radiusr
30mm

Mass and area

Mass per lengthm
493.9kg/m
Cross-sectional areaA
62,913mm²
Outside perimeterP
3,195mm

Strong axis x–x

Moment of inertiaIx
10,28010⁶ mm⁴
Elastic section modulusSx
19,84510³ mm³
Plastic section modulusZx
23,41310³ mm³
Radius of gyrationrx
404.2mm

Weak axis y–y

Moment of inertiaIy
268.210⁶ mm⁴
Elastic section modulusSy
1,73610³ mm³
Plastic section modulusZy
2,81810³ mm³
Radius of gyrationry
65.3mm

Torsion and stability

Torsional constantJ
44,32510³ mm⁴
Warping constantCw
64,01510⁹ mm⁶

Equivalents in other standards