UB – universal beams

1016x305x222

Standard: BS 4-1:2005Source: Primary geometry (h, b, tw, tf, r) — calculated properties (exact engine)
Range derived from BS 4-1; to be confirmed with the SAISC Red Book.
xybf = 300d = 970.3tf = 21.1tf = 21.1tw = 16tw = 16
Cross-section, to scaledimensions in mm

Dimensions

Depthd
970.3mm
Flange widthbf
300mm
Web thicknesstw
16mm
Flange thicknesstf
21.1mm
Root radiusr
30mm

Mass and area

Mass per lengthm
222kg/m
Cross-sectional areaA
28,282mm²
Outside perimeterP
3,057mm

Strong axis x–x

Moment of inertiaIx
4,08010⁶ mm⁴
Elastic section modulusSx
8,40910³ mm³
Plastic section modulusZx
9,80710³ mm³
Radius of gyrationrx
379.8mm

Weak axis y–y

Moment of inertiaIy
95.4610⁶ mm⁴
Elastic section modulusSy
636.410³ mm³
Plastic section modulusZy
1,02010³ mm³
Radius of gyrationry
58.1mm

Torsion and stability

Torsional constantJ
4,06110³ mm⁴
Warping constantCw
21,38710⁹ mm⁶

Equivalents in other standards