ASME B30.24-2018 pdf download
ASME B30.24-2018 pdf download.Container Cranes.
SECTION 24-0.1: SCOPE OF B30.24 Volume B30.24 includes provisions that apply to the construction, installation, operation, inspection, testing, and maintenance of container cranes used for lifting purposes, in conjunction with equipment described in other volumes ofthe B30 Standard. This Volume includes power-operated cranes of the above type whose power source is either self-contained or provided externally; single, double, or box girder construction, utilizing a trolley and a container-handling spreader or other appli- cable lifting apparatus (cargo hook, cargo beam, magnet, etc.); and rail- or rubber tire-mounted with through-the- legs or between-the-legs operation. Use ofthe same hard- ware for purposes other than lifting is excluded from the provisions ofthis Volume. This Volume does not apply to small industrial truck-type cranes, container-handling toploaders and sideloaders, or mobile straddle-type industrial lifts. SECTION 24-0.2: ð18Þ DEFINITIONS automatic crane: a crane that, when activated, operates through a preset cycle or cycles. boom: an extension of the trolley runway on dockside container cranes that may be raised (luffing boom) or retracted (shuttle boom) to obtain clearance for gantry travel. brake: a device other than a motor used for retarding or stopping motion by friction or power means. bumper(buffer): a device for reducing the force ofimpact at the end of permitted travel. cab:acompartmentwithcranecontrolsfortheoperatorto control the operating functions of a container crane. container crane: a crane with single or multiple girders carrying a movable or fixed hoisting mechanism used primarilyto liftintermodal shippingcontainers. Itutilizes a trolley(s) and a container-handling spreader assembly. controller: a device or group of devices that serves to govern, in a predetermined manner, the power delivered directly to the apparatus to which it is connected. crane: a machine for lifting and lowering a load and moving it horizontally, with the hoisting mechanism an integral part of the machine. docksidecontainercrane: arail-mountedcantilevergantry crane in which the trolley girder(s) extends transversely beyond the crane runwayon one or both sides and is used primarilyto liftintermodal shippingcontainers on and off ships.Thecranemayhavealuffingboomorashuttleboom (see Figure 24-0.2-1). drum: a cylindrical member around which wire rope is wound for moving the load, boom, or trolley. emergency stop switch: a manually actuated switch to disconnect power independently ofthe regular operating controls. equalizer sheave: a sheave used to equalize tension in opposite parts ofthe rope. Because ofits slightmovement, it is not termed a running sheave. exposed: applies to hazardous objects not guarded or isolated and capable of being contacted inadvertently. gantry frame: a structural assembly that supports the trolley girder beams. gantry travel: the crane movement in a direction parallel to the crane runway. headblock: an assembly of sheaves, pins, and frame suspended from the crane for connecting container- handling devices, such as lift beams and spreaders. hoist: amachineryunitthatis used forliftingorloweringa freely suspended load. holding brake: a friction brake for a hoist that is automa- tically applied and prevents motion when power to the brake is off. lifting apparatus: spreaders, cargo beams, heavy lift beams, cargo hooks, and other devices attached to the headblock for lifting loads. limit device (crane motion): a device that limits crane motion or takes control of particular functions without action of the operator when a limiting condition is reached. ASME B30.24-2018 1
load: the total superimposed weight on the spreader or hook. main hoist: the primary hoist mechanism provided for lifting and lowering the rated load. master switch: a switch that controls the operation of contactors, relays, or other remotely operated devices. minimum breaking force: the minimum load at which a new and unused wire rope will break when loaded to destruction in direct tension. normal operating conditions: conditions under which a crane is performing functions within the scope of the original design. operationalaid: an accessorythatprovides information to facilitateoperationofacraneorthattakes controlofparti- cular functions without action of the operator when a limiting condition is reached. Examples of such devices are hoist, trolley, and boom hoist limit switches. originallanguage(s): used bythe manufacturerto develop product instructions and manual(s). parts ofline: the number of ropes supporting the load. qualified person: a person who, by possession of a recog- nizeddegreeinanapplicablefieldoracertificateofprofes- sional standing, or who by extensive knowledge, training, and experience, has successfully demonstrated the ability to solve orresolve problems relatingto the subjectmatter and work. rail-mounted yard container crane: a crane consisting of overhead girders supporting a trolley, mounted on rigid legs, and running on rails (see Figure 24-0.2-2). rail sweep: a device attached to the crane and located in frontofthecrane’sleadingwheelstoremoveobstructions. rated load: the maximum allowable working load desig- nated bythe manufacturer forwhich a crane or individual hoistis designedand built. The term“safe workingload” is commonly used to describe the rated load.
