Which safety device is essential for supporting loads when lifting heavy structures?

Outriggers are critical safety devices used in the lifting and support of heavy structures. They function to extend the stability of a lifting apparatus, such as a crane or an aerial lift, by providing additional support laterally. This extension helps to prevent tipping over by distributing the weight of the load more evenly and lowering the center of gravity.

In construction and ironworking contexts, when lifting heavy steel beams or other large components, outriggers play a vital role in ensuring that the lifting equipment remains stable under the added weight. They create a wider base and counteract the forces that could lead to a dangerous imbalance, significantly enhancing safety during lifting operations. Their proper use is essential for preventing accidents that could arise from equipment failure or instability while moving large structural elements.