UB – universal beams

914x305x201

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 = 303.3d = 903tf = 20.2tf = 20.2tw = 15.1tw = 15.1
Cross-section, to scaledimensions in mm

Dimensions

Depthd
903mm
Flange widthbf
303.3mm
Web thicknesstw
15.1mm
Flange thicknesstf
20.2mm
Root radiusr
19.1mm

Mass and area

Mass per lengthm
200.9kg/m
Cross-sectional areaA
25,592mm²
Outside perimeterP
2,956mm

Strong axis x–x

Moment of inertiaIx
3,25310⁶ mm⁴
Elastic section modulusSx
7,20410³ mm³
Plastic section modulusZx
8,35110³ mm³
Radius of gyrationrx
356.5mm

Weak axis y–y

Moment of inertiaIy
94.2310⁶ mm⁴
Elastic section modulusSy
621.410³ mm³
Plastic section modulusZy
98210³ mm³
Radius of gyrationry
60.68mm

Torsion and stability

Torsional constantJ
2,97910³ mm⁴
Warping constantCw
18,30110⁹ mm⁶

Equivalents in other standards