What does "cambers" refer to in structural steel?

Cambers refer to the intentional upward curvature of a steel beam. This upward arch is designed to counteract the natural deflection that occurs when a load is applied to the beam. When weight is placed on a steel structure, gravity tends to cause the beam to sag; the camber helps to accommodate this by allowing the beam to settle into a level position once the load is applied. This consideration is crucial in structural engineering to ensure that buildings and bridges maintain their intended shape and structural integrity over time.

In contrast, a downward curve or sagging of a beam is not classified as a camber; rather, it is a reaction to loads and stresses applied to the structure. Flexible joints and connection points do not directly pertain to the curvature of beams but rather to the relationships and connections between the structural elements themselves. Hence, recognizing camber's role in structural steel helps ironworkers and engineers design more effective and durable structures.