UC – universal columns

254x254x89

Standard: BS 4-1:2005Source: Primary geometry (h, b, tw, tf, r) — calculated properties (exact engine)
Singapore uses BS / BS EN sections; same data as the United Kingdom.
xybf = 256.3d = 260.3tf = 17.3tf = 17.3tw = 10.3tw = 10.3
Cross-section, to scaledimensions in mm

Dimensions

Depthd
260.3mm
Flange widthbf
256.3mm
Web thicknesstw
10.3mm
Flange thicknesstf
17.3mm
Root radiusr
12.7mm

Mass and area

Mass per lengthm
88.95kg/m
Cross-sectional areaA
11,331mm²
Outside perimeterP
1,503mm

Strong axis x–x

Moment of inertiaIx
142.710⁶ mm⁴
Elastic section modulusSx
1,09610³ mm³
Plastic section modulusZx
1,22410³ mm³
Radius of gyrationrx
112.2mm

Weak axis y–y

Moment of inertiaIy
48.5710⁶ mm⁴
Elastic section modulusSy
37910³ mm³
Plastic section modulusZy
575.310³ mm³
Radius of gyrationry
65.47mm

Torsion and stability

Torsional constantJ
1,02710³ mm⁴
Warping constantCw
716.610⁹ mm⁶

Equivalents in other standards