Photo courtesy Joe Volpe Crews working atop One57 use a mini-crane to assemble a stiff-leg derrick. YouTube Maeda mini-crane works on Baku Flame Towers Project. Related Links: Dangling Crane Was Act of God, Engineers Say Spider Cranes Crawl Into Tight Spaces Bigger is not always better. Such is the case of a small lifting machine, called a mini-crane, that has been advancing rigging and hoisting work needed to replace a large tower crane that partially collapsed in Midtown Manhattan last October during Superstorm Sandy.The unusual work requires crews to cut down, remove and then replace a crane-jib superstructure that is
Despite a faltering international market, 2015 and the beginning of 2016 are proving to be strong years for U.S. contractors, with steady domestic growth and only moderate strain from workforce shortages.