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It was a luffing-jib tower crane manufactured by Favco that was 200 feet (61 m) tall at the time of the collapse. The accident occurred when workers were attaching a new steel collar to anchor it to the building at the 18th floor, as part of an operation to extend the crane upwards. [ 6 ]
Usually jib arms are attached to a vertical mast or tower or sometimes to an inclined boom. In other jib-less designs such as derricks, the load is hung directly from a boom which is often anomalously called a jib. A camera jib or jib arm in cinematography is a small crane that holds nothing but the camera. [4]
A jib crane is a type of crane - not to be confused with a crane rigged with a jib to extend its main boom - where a horizontal member (jib or boom), supporting a moveable hoist, is fixed to a wall or to a floor-mounted pillar. Jib cranes are used in industrial premises and on military vehicles.
Ships had increased in size by this time and the jib could no longer reach far enough to remove engines or boilers for repair work. It was even considered raising the crane up on a stone tower, as for the smaller crane at Canons Marsh opposite, to increase the lift height. In 1892, hydraulic machinery, including cranes, appeared in the docks ...
The Guinness World Records state that Taisun holds the world record for "heaviest weight lifted by crane", set on April 18, 2008 at 20,133 metric tonnes (44,385,667.25 lb) by lifting a barge, ballasted with water. [3] However, it was surpassed by the Honghai Crane when the new crane was completed in 2014, with a lift capacity at 22,000 tonnes. [5]
Early French crane loading coal for a gasworks. A bulk-handling crane is one that, instead of a simple hook that can handle a range of slung loads, has an integral grab for lifting bulk cargoes such as coal, mineral ore etc. Where the grab is a two-piece hinged bucket, it is known as a shell grab or shell bucket. Working the grab requires extra ...
Wisma 46 is a 261.9-meter tall (architectural height) skyscraper located in the BNI City complex at Jalan Jenderal Sudirman in Jakarta, Indonesia.The 46-floor office tower features a 10 m (33 ft) antenna spire, and was completed in 1996 under the design by Zeidler Roberts Partnership (Zeidler Partnership Architects) and DP Architects Private Ltd. [4]
The crane was powered by a semi-portable steam engine in a small cabin at the rear of the jib, also helping as a counterweight. 1871 timber queen post truss jib, for the North Sea Canal Construction of the Dutch Noordzeekanaal from 1865 to 1876 used a variety of cranes, including two significant examples of the Hercules type.