UB – universal beams

1016x305x272

Standard: BS 4-1:2005Source: Primary geometry (h, b, tw, tf, r) — calculated properties (exact engine)
xybf = 300d = 990.1tf = 31tf = 31tw = 16.5tw = 16.5
Cross-section, to scaledimensions in mm

Dimensions

Depthd
990.1mm
Flange widthbf
300mm
Web thicknesstw
16.5mm
Flange thicknesstf
31mm
Root radiusr
30mm

Mass and area

Mass per lengthm
272.3kg/m
Cross-sectional areaA
34,686mm²
Outside perimeterP
3,096mm

Strong axis x–x

Moment of inertiaIx
5,54010⁶ mm⁴
Elastic section modulusSx
11,19010³ mm³
Plastic section modulusZx
12,82610³ mm³
Radius of gyrationrx
399.6mm

Weak axis y–y

Moment of inertiaIy
14010⁶ mm⁴
Elastic section modulusSy
933.610³ mm³
Plastic section modulusZy
1,47010³ mm³
Radius of gyrationry
63.54mm

Torsion and stability

Torsional constantJ
8,22410³ mm⁴
Warping constantCw
32,08110⁹ mm⁶

Equivalents in other standards