An outrigger is a projecting structure on a boat, with specific meaning depending on types of vessel. Outrigger An extendable supporting device used to level the crane and increase stability. A projecting beam or spar run out from the side of a vessel to help in securing the masts or from a mast to be used in extending a rope or sail. Outrigger Beam The part of the outrigger which extends horizontally and acts as the support for the outrigger jack. Outrigger definition: a framework for supporting a pontoon outside and parallel to the hull of a boat to... | Meaning, pronunciation, translations and examples outrigger; rigger brush; sable; sable brush; sable's hair pencil; sail; sailing ship; References in classic literature? A long thin float attached parallel to a seagoing canoe by projecting spars as a means of preventing it from capsizing. With all of the different crane manufacturers out there, it is imperative that the crane's load chart be well understood. For the Outrigger Pad Calculator to work effectively you'll need maximum load per outrigger and the maximum allowable ground pressure in the same unit of measurement. Outrigger Jack The hydraulic cylinder on the outrigger beam which extends vertically to raise and lower the crane for leveling. Construction equipment: The outrigger pad you use must “Spread the load from the crane over a large enough area that the bearing pressure to the ground surface is acceptable [and] provide support to the crane that is stiff enough that the crane will not go out of level as the loads from the crane change during lifting operations” – David Duerr, P.E., president of 2DM Associates, Inc. Determining the outrigger forces is an effective means of preventing a mobile crane from tipping over or outrigger failures. The jib head 7 of the crane is provided with an outrigger 8 carrying a pulley block 9 at each of its ends, and two coaxial pulleys 10 are mounted at the end of the jib head, one on each side thereof. A crane's load chart is the most important resource a crane operator should know for ensuring crane safety, and for determining what a particular crane is capable of lifting. Outriggers may also refer to legs on a wheeled vehicle that are folded out when it needs stabilization, for example on a crane that lifts heavy loads. Nautical a. b. Don't worry, if you don't know the ground pressure - the calculator will ask you for the surface materials and you'll be able to select the most appropriate type. ger (out′rĭg′ər) n. 1.

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