ASME B30.3:2019 pdf free download

ASME B30.3:2019 pdf free download.Tower Cranes.
out-of-service: the condition of a crane when unloaded, without power, with the controls unattended, and prepared to endure winds above the in-service level.
overturning moment: the summation of the individual moments that add to the tipping tendency of a crane about its fulcrum.
parking track: for rail-mounted cranes, a section of track supported so that it Is capable of sustaining storm-induced bogie loads; it is provided with storm anchorages when required.
pawl (dog): a device for positively holding a member against motion in one or more directions.
pendant: a rope or bar of specified length with lixed end connections.
pitch diameter: the diameter of a sheave or rope drum measured at the centerline of the rope.
qualified person: a person who, by possession of a recognized degree in an applicable field ora certificate of professional standing. or by extensive knowledge. training, and experience, has successfully demonstrated the ability to solve or resolve problems relating to the subject matter and work
radius (load): the horizontal distance from a projection of the axis of rotation to the base of the crane, before loading. to the center of the vertical hoist line or tackle with load applied.
rail clamp: a device for fastening a traveling crane to Its rails to limit wind-induced travel.
rated load (load rating): the maximum allowable working load designated by the manufacturer; rated loads are expressed in pounds, kilograms, short tons, or metric tons.
reconfigure: the addition ordeletion ofjib, lutflng boom, or counterjib sections while the crane is erected.
remote control: a radio or cable control device used to activate the crane control functions.
rope: refers to wire rope unless otherwise specified.
rota tion-resiswnt rape: wire rope consisting of an inner layer of strands laid in one direction, covered by a layer of strands laid in the opposite direction; this has the effect of counteracting torque by reducing the tendency of the finished rope to rotate.
running rapes: rope that spools on/off drums.
shall: this word indicates that the rule Is mandatory and must be followed.
sheave: a grooved wheel or pulley used with a rope to change the direction and point of application of d pulling force.
should: this word indicates that the rule is a recommendation, the advisability of which depends on the facts in each situation.