Crane-Related Fatalities in the Construction Industry.
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Bibliographyīeavers, J., Moore, J., Rinehart, R., & Schrivers, W. Formal written lift plans should be required for all “critical lifts” as defined by your organization in order to prevent crane incidents, which have the potential to cause catastrophic results. If a lift cannot be made under the configuration and conditions specified in the lift plan, the lift should be reevaluated and approved by a qualified person. Therefore, it is generally good practice to use a pre-lift checklist when planning a lift and for site personnel to also use just prior to executing the lift to ensure that those conditions that may affect the crane’s rated capacity have been considered. There are many factors that affect a crane’s rated capacity.
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At a minimum, the lift plan should include the following information to determine whether the lift can be safely made: Sources of possible failure should be evaluated, including the crane’s stability, structure, and other components (rigging, hoist line, etc.). Some lifts require only information about the crane’s configuration, load and rigging, and rated capacity for others, engineering drawings of the crane and/or the load, load charts, crane matting, etc.
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Even noncritical lifts require knowledge of the weight of the load (and other components considered to be part of the load), the configuration of the crane, the rated capacity of the crane at its lift configuration, and factors that may affect the crane’s rated capacity in order to make a “go/no-go” decision. Therefore, establishing criteria for “critical lifts,” preparing formal lift plans, understanding the factors that affect rated capacities of mobile cranes, ensuring equipment is in good condition, and ensuring only qualified and trained personnel operate the equipment are all important components in preventing mobile crane incidents.Īll crane lifts require some level of planning, whether the load is a mere half-ton or more than 2,000 tons. “People do not plan to fail, they fail to plan.” As a result, less-than-adequate crane lift planning encompasses most, if not all, of the above causal factor categories.