What is unbraced length in a beam?

Unbraced length in a beam refers to the distance between points where the beam is laterally supported or braced against buckling. It is a critical parameter in structural engineering, as it influences the beam's stability and load-carrying capacity. The longer the unbraced length, the greater the risk of lateral-torsional buckling, which can affect the design and safety of the structure. Proper bracing strategies are essential to minimize this length and ensure structural integrity.