UB – universal beams

533x312x273

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 = 320.2d = 577.1tf = 37.6tf = 37.6tw = 21.1tw = 21.1
Cross-section, to scaledimensions in mm

Dimensions

Depthd
577.1mm
Flange widthbf
320.2mm
Web thicknesstw
21.1mm
Flange thicknesstf
37.6mm
Root radiusr
12.7mm

Mass and area

Mass per lengthm
273.2kg/m
Cross-sectional areaA
34,808mm²
Outside perimeterP
2,371mm

Strong axis x–x

Moment of inertiaIx
1,98610⁶ mm⁴
Elastic section modulusSx
6,88210³ mm³
Plastic section modulusZx
7,85810³ mm³
Radius of gyrationrx
238.9mm

Weak axis y–y

Moment of inertiaIy
206.110⁶ mm⁴
Elastic section modulusSy
1,28810³ mm³
Plastic section modulusZy
1,98510³ mm³
Radius of gyrationry
76.96mm

Torsion and stability

Torsional constantJ
12,99210³ mm⁴
Warping constantCw
14,97010⁹ mm⁶

Equivalents in other standards