Universal Beams - 533x312x219

United Kingdom Universal Beams (UB), often called I-beams, are structural steel elements with an 'I' or 'H' shaped cross-section designed to carry high bending loads. They are primarily employed in structural engineering and construction scenarios where long spans and significant load-bearing capacity are required without excessive weight. You will commonly find them used as primary horizontal supports in multi-storey buildings, commercial warehouses, and industrial frameworks to transfer floor and roof loads to columns. They are also heavily utilized in residential renovations, such as creating open-plan living spaces by supporting upper floors when load-bearing walls are removed. Additionally, UBs serve as critical components in civil engineering projects, including bridge decks, gantries, and temporary shoring systems for deep excavations, because their design maximizes efficiency by placing the steel exactly where the bending stresses are highest.

Dimensions

PropertyValue
kg/m218.8
D mm560.3
B mm317.4
t mm18.3
T mm29.2
r mm12.7
d mm476.5
b/T5.43
d/t26
C mm11
N mm160
n mm42
m22.33
m210.7

Full sortable table: Dimensions table for this category

Section Properties

PropertyValue
Second Moment of Area (x-x) - cm4151000
Second Moment of Area (y-y) - cm415600
Radius of Gyration (x-x) - cm23.3
Radius of Gyration (y-y) - cm7.48
Elastic Modulus (x-x) - cm35400
Elastic Modulus (y-y) - cm3982
Plastic Modulus (x-x) - cm36120
Plastic Modulus (y-y) - cm31510
Buckling Parameter - u0.884
Torsional Index - x19.8
Warping Constant - H dm611
Torsional Constant - J cm4642
Area of Section - A cm2279

Full sortable table: Properties table for this category