Thorough lift plans show the GBP on different types of matting and what the footprint for the crane will look like on the jobsite. “Ground bearing pressure is a large reason many accidents happen, with sand or another surface unable to support the weight of the crane with the load,” said Ashlock. “All the information proves out even to a layman whether it’s the right crane for the job,” he said.Ĭustomers want information not just on boom length, capacity and radius, but the ground bearing pressure under the outriggers. Depending on the customer’s excess capacity requirements (sometimes even 50 percent), a lift plan will show the percentage of chart used for each pick. “Our customers like to see proof that we’ve done the layout and know for sure whether a crane works for a particular lift – not just a 50-ton machine or a 300- ton machine but how it looks with this particular crane,” Ashlock explained. Different crane manufacturers have their machines ready built in different software, which makes switching back and forth efficient for companies that own many types of cranes. “We use CompuCrane, LiftPlanner, and 3D Lift Planner,” said Alan Ashlock, president of the southeast region for Maxim Crane Works, LLC. The various software options available have different strengths and capabilities. It is also valuable to provide the lift plan to the operators so they can arrive prepared for the project, Priepot said. Customers expect a representation that the crane can perform the lift as promised – that it’s properly sized and that everyone is on the same page.” Mark Priepot, senior project manager at Imperial, said “Every project we do, from 35-ton to 600-ton capacity cranes, includes a 3D Lift Plan. Imperial Crane uses AutoCAD for increased detail and planning when engineered drawings are required. Meiers, P.E., engineering manager at Imperial Crane Services, Inc., said 3D Lift Planner is “our go-to for everyday lift plans, all the way to now some of the more complicated industrial projects.” There are a handful of lift planning software options on the market, each with unique strengths to offer the industry.Īs for how lift planning plays out for crane companies day to day, Matthew J. General contractors, the Army Corps of Engineers and crane owning companies clearly see the risk mitigation benefits of requiring software-generated lift plans before work is performed.ĭaily crane users large and small like to see calculated lift plans to have assurance they’re getting a crane that’s neither too small nor too big for the job at hand.
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