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PANORAMAUSAManitowoc 18000 critical tobridge replacement projectA Manitowoc 18000 is working on a bridge replacementproject in Pennsylvania. The project involves completelyreplacing the Pohopoco Creek and Lehigh River Bridgestructures on the Northeast Extension of I-476 in USA.During the course of the project, 175 beams measuring 31m (102 ft) to 51.2 m (168 ft) and weighing up to 109 t., willbe placed by the 18000.Aaron Barnes, assistant resident engineer for the LehighRiver and Pohopoco Creek Bridge Replacement Project,said access and logistics made beam erection a realchallenge on this project.“We installed a construction causeway, where themajority of the picks are made, in the Pohopoco Creekvalley,” he said “Extremely steep slopes border the creek onboth sides, and there is limited space on the causeway thatruled out picking the beams with two cranes. Because ofthese factors, we needed a crane that can lift beams of over90 tonnes at a radius of 36 m (118 ft) — the Manitowoc18000 fits the bill perfectly.”The most challenging aspect of the job was the erectionof beams for the longest spans on the Pohopoco Creek structures. There was very limited site access, so liftingcontractor Cornell and Co. had to pick the beams from the right lane of the southbound mainline turnpike. Traffic laneswere closed while the 18000 set up on the construction causeway 36.5 m (120 ft) below the beam.Except for the northernmost spans of the Pohopoco Bridge, the crane is picking the beams without assistance. Thepicks have to be done so the crane is close enough to handle the weight of the beam, but far enough away so thelongest beam — 60 m (164 ft) — clears the crane’s boom.The crane, which is owned by ALL Erection and Crane Rental, will have several different configurations during itstime on the project, but for its most challenging portion, the 18000 worked with 30.5 m (100 ft) of mast, 48.75 m (160 ft)of main boom and a 39.5 m (130 ft) luffing jib. It had 240,000 kg (528,000 lbs) of crane upper counterweight and145,000 (320,000 lbs) of carbody counterweight.The bridge replacement project began in January 2009 and is expected to be open to traffic in November 2011.CHINABig, heavy lift for SANYcrane at nuclear facilityA Sany SCC10000 - a 1000-t-class crawler crane -was used to successfully place the core part ofproject- the dome of Fuqing nuclear power station inFujian, China.The dome of the nuclear power station is 11 m inheight, 37 m in diameter and has a total weight of170 tons. For this assignment, the crawler cranewas configured with 60 m main boom, 54 m luffingjib, superlift mast and superlift. This enabled aworking radius of 24 m, while the angle of the mainboom was 75.1° and its hoisting height was 60 m.The maximal rated hoisting load of SCC10000 is1000 tons and its rated lifting moment can reach14,000 t/m. The crane can be configured to reach96 m + 96 m, and the maximal vertical lifting height was approximately 190 m.ManitowocSanyPage 8 Contractors World Vol 1 No 9
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