UB – universal beams

356x171x57

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 = 172.2d = 358tf = 13tf = 13tw = 8.1tw = 8.1
Cross-section, to scaledimensions in mm

Dimensions

Depthd
358mm
Flange widthbf
172.2mm
Web thicknesstw
8.1mm
Flange thicknesstf
13mm
Root radiusr
10.2mm

Mass and area

Mass per lengthm
56.96kg/m
Cross-sectional areaA
7,256mm²
Outside perimeterP
1,371mm

Strong axis x–x

Moment of inertiaIx
160.410⁶ mm⁴
Elastic section modulusSx
89610³ mm³
Plastic section modulusZx
1,01010³ mm³
Radius of gyrationrx
148.7mm

Weak axis y–y

Moment of inertiaIy
11.0810⁶ mm⁴
Elastic section modulusSy
128.710³ mm³
Plastic section modulusZy
198.810³ mm³
Radius of gyrationry
39.08mm

Torsion and stability

Torsional constantJ
335.910³ mm⁴
Warping constantCw
329.210⁹ mm⁶

Equivalents in other standards