What is a commonly used item of rigging equipment for lifting tilt-up concrete panels?

A commonly used item of rigging equipment for lifting tilt-up concrete panels is chains. Chains provide the necessary strength and durability required for lifting heavy and awkwardly shaped loads such as concrete panels. They can withstand significant weight, making them ideal for construction applications where safety and reliability are paramount. The links in chains distribute loads evenly, which is crucial when maneuvering large concrete panels that need precise handling during the lifting process.

Other options, while relevant to the overall safety and operation on a construction site, do not serve the specific purpose of lifting concrete panels. Wrenches are tools used for fastening and loosening bolts and nuts rather than for lifting heavy objects. Hand signals are an important aspect of communication on-site, ensuring that all team members are aware of movements and maneuvers, but they do not provide any physical lifting capability. Safety harnesses are essential for fall protection and keeping workers safe while working at heights, but again, they do not directly assist in the lifting process of tilt-up concrete panels. Each of these items plays a critical role in a construction environment, but chains specifically fulfill the need for lifting heavy loads.