Jobsite Limitations Lead Contractor to Self-Erecting Cranes
Built out, busy, and quite particular about business disruptions and noise, Winter Park, Fla., would be the sort of place that could present an authentic challenge to any contractor. When constructing the newest four-story Landmark on Morse residential condominiums in Winter Park, Jack Jennings & Sons Construction Services, LLC, Orlando, Fla., faced the complications of companies being open around it, limited access for construction vehicles, and without any room for a conventional crane anywhere on the building.
��There we were likely to work with a 150-ton hydraulic crane parked on the street, but Winter Park won’t permit Morse Boulevard for being blocked,�� said John Jennings, v . p .. ��A gigantic tower crane was out of the question and budget besides.�� Crane Rental Corp., Orlando, Fla., recommended the business work with a Potain HDT 80 self-erecting tower cranes.
But rather of erecting the crane beyond your building, rrt had been established from the building through the project start-up. Erected from the mobile transport base, the 26,000-pound HDT 80 was flown onto the building’s finished underground garage floor by way of a 240-ton hydraulic crane in a couple of hours.
Sean Spence, Crane Rental Corp.’s vice chairman of sales, explained: ��The very idea of an average tower crane with anchor stools was rejected due to the finished floor that’s poured first since the structure was being subtracted from the floor. Conventional moorings would compromise the building’s water ex-pool filter. The engineers approved the loadings of the HDT 80 that’s sustained by the previous slab.��
Upon finishing the project, the Potain HDT 80 was hoisted out by Crane Rental Corp.’s big Grove 550-ton mobile hydraulic crane in about 4 hours. Your entire self-erecting crane was then driven away to its next project.
Permanent power had not been installed until late within the project. Low amperage requirements allowed the self-erector to become powered by an electrical generator staged around the garage floor beside the crane. An open atrium permitted the crane’s telescopic mast to increase upwards with each floor poured to its maximum operational height of 176 feet, as well as the 148-foot maximum reach boom allowed for loads being conveniently taken out of arriving supply and material transports on three sides on the structure. The HDT 80 further features an obstacle avoidance jib which can be folded up within a stored position in case of any inclement weather.