Cranes
Hoisting and Rigging
Rigging and hoisting of steel members and materials are essential parts of the steel erection process.
Crane Dismantling
However, in addition to the dangers usually associated with cranes and derricks, steel erection also presents special hazards. These hazards include the use of cranes to hoist employees, suspend loads over certain employees, and perform pre-lifts.
Hoisting Equipment
Hoisting equipment is commercially manufactured lifting equipment designed to lift and position a load of known weight to a location at some known elevation and horizontal distance from the equipment's center of rotation.
Note: A "come-a-long," is not considered lifting equipment. It is a mechanical device usually consisting of a chain or cable attached at each end. It is used to facilitate movement of materials through leverage and is not considered hoisting equipment.
Knowledge Check Choose the best answer for the question.
2-1. What is designed to lift and position a load of known weight to a location at some known elevation?
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