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An overhead crane, commonly called a bridge crane, is a type of crane found in industrial environments. An overhead crane consists of two parallel rails seated on longitudinal I-beams attached to opposite steel columns by means of brackets. The traveling bridge spans the gap. A hoist, the lifting component of a crane, travels along the bridge.
A tower crane is usually assembled by a telescopic jib (mobile) crane of greater reach (also see "self-erecting crane" below) and in the case of tower cranes that have risen while constructing very tall skyscrapers, a smaller crane (or derrick) will often be lifted to the roof of the completed tower to dismantle the tower crane afterwards ...
A simple crane. A counterweight is a weight that, by applying an opposite force, provides balance and stability of a mechanical system. [1] The purpose of a counterweight is to make lifting the load faster and more efficient, which saves energy and causes less wear and tear on the lifting machine.
It might sound like something out of a Hollywood blockbuster -- hackers getting into position behind a control panel and taking over a construction site, using the equipment there to wreak large ...
A mobile crane is a cable-controlled crane mounted on crawlers or rubber-tired carriers or a hydraulic-powered crane with a telescoping boom mounted on truck-type carriers or as self-propelled models. [1]
Videos taken near the crane showed a portion of it falling into a nearby building New York City construction crane catches fire and partially collapses on top of Manhattan high-rise Skip to main ...
The area around the incident has been evacuated as firefighters work to tackle the blaze, shooting water jets from other high-rise buildings. By 8.30am most of the fire was out. Key points
The operator's cabin hosts a display showing the tower crane's position, movement and operating area. Where the tower crane’s operating area overlaps with other cranes or prohibited zones these are also displayed. The system alerts the operator when the crane is approaching a prohibited area or another crane. [9]