Asymmetric Beams - 280 ASB 124

An asymmetric steel beam is a structural support where the top and bottom horizontal flanges are different sizes. Usually, the bottom flange is made wider than the top flange to support precast concrete floor slabs or metal decking directly. This clever design allows the concrete floor to sit within the depth of the steel beam rather than on top of it. By tucking the floor inside the beam, engineers can significantly reduce the overall height of a building's floors, creating more headroom and saving valuable construction space.

Dimensions

PropertyValue
kg/m124
D mm296
Bt mm178
Bb mm288
t mm13
T mm26
r mm24
d mm196
bt/T3.42
bb/T5.54
d/t15.1
cm423500
cm46410
m21.46
m211.8

Full sortable table: Dimensions table for this category

Section Properties

PropertyValue
Radius of Gyration (x-x) - cm12.2
Radius of Gyration (y-y) - cm6.37
Elastic Modulus (x-x) - Top cm31360
Elastic Modulus (x-x) - Bottom cm31900
Elastic Modulus (y-y) - cm3445
Neutral Axis Position (Elastic) - Ye cm17.3
Neutral Axis Position (Plastic) - Yp cm25.7
Plastic Modulus (x-x) - cm31730
Plastic Modulus (y-y) - cm3761
Buckling Parameter - u0.83
Torsional Index - x10.5
Warping Constant - H dm60.721
Torsional Constant - J cm4332
Area of Section - A cm2158

Full sortable table: Properties table for this category