Two Kobelco crawlers install bridge beams overnight in Tokyo

Two Kobelco crawlers install bridge beams overnight in Tokyo

JAPAN:Specialist contractor Uchimiya Corp. in Japan overcame high winds and confined space on a recent installation project. It used a pair of crawler cranes to install bridge sections on a site where the cranes had minimal space for tail swing when slewing.

Uchimiya is one of the largest contractors in Japan and used its Kobelco lattice boom crawler models 7800 and SL13000, of 750 and 800 tonnes (826.7 and 881.8 tons) maximum capacity.

Overnight January 20-21, 2007, the bridge beams were installed on the new Wangan Line expressway in Tokyo. Block A was a 39 meters long (128 feet) and 253.6 tonne (279.5 ton) section. Block B was 17.3 meters long (56 feet) and weighed 82.2 tonnes (90.6 tons).

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