UC – universal columns

305x305x137

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 = 309.2d = 320.5tf = 21.7tf = 21.7tw = 13.8tw = 13.8
Cross-section, to scaledimensions in mm

Dimensions

Depthd
320.5mm
Flange widthbf
309.2mm
Web thicknesstw
13.8mm
Flange thicknesstf
21.7mm
Root radiusr
15.2mm

Mass and area

Mass per lengthm
136.9kg/m
Cross-sectional areaA
17,442mm²
Outside perimeterP
1,824mm

Strong axis x–x

Moment of inertiaIx
328.110⁶ mm⁴
Elastic section modulusSx
2,04810³ mm³
Plastic section modulusZx
2,29710³ mm³
Radius of gyrationrx
137.2mm

Weak axis y–y

Moment of inertiaIy
10710⁶ mm⁴
Elastic section modulusSy
692.110³ mm³
Plastic section modulusZy
1,05310³ mm³
Radius of gyrationry
78.32mm

Torsion and stability

Torsional constantJ
2,51110³ mm⁴
Warping constantCw
2,38610⁹ mm⁶

Equivalents in other standards