ASME P30.1-2014 pdf – Planning for Load Handling Activities.
(2) the weight of the parts of hoist line below the boom or jib head (whichever is being used), i.e., the number of parts of line being used times the longest anticipated drop from boom or jib tip to the hook block (ft) times the weight per foot of the hoist line. Check the manufacturer’s manual to determine if the weight of the wire rope necessary to lift the suspended load has been accounted for in the load chart and the weight of any extra reeved parts of line need to be added as additional weight, or if all parts of line need to be accounted for as additional weight.
(3) jibs where fitted when using the main boom; the weight allowances to be considered vary according to whether the jib is erected, stowed, extended, or retracted — consult the manufacturer’s manual.
(4) the weight of other suspended hooks/overhaul balls fitted and the weight of the associated suspended hoist lines.
(5) boom extensions/runners/auxiliary boom sheaves and other similar attachments fitted to the boom or jib (when the chart being used does not relate to their use).
Totaling the above three subtotals (payload plus rigging plus additional weight items) gives the total weight to the crane for comparison with the rated capacity.
A-2.3.3 Crane Capacities. The next section relates to the crane capacities. Capacity varies according not only to configuration but also to operating radius. Three columns are provided on this particular sheet allowing the user to calculate the loads at up to three different radii as applicable (e.g., hoist, swing, and place). It may however be sufficient to consider only the worst radius. For each column to be used, enter first the actual radius of operation then, unless capacity interpolation for that specific radius is allowed, the next greatest radius for which a chart capacity is quoted. The next line, “Chart Capacity,” is for entering the rated capacity of the crane at the aforementioned chart radius. Ensure use of the correct chart specific to that particular crane in the particular configuration in which it is being used.
The “Total Load to Crane” divided by “Crane Capacity” yields the percentage of chart capacity being used for each radius for which the calculation is performed. Knowing this figure at up to three operating radii, the “Maximum Percentage of Chart Capacity Used” can be noted.
A-2.3.4 Document Attachments. This section lists documents commonly attached to an LDS (e.g., a crane layout, rigging arrangement, and crane chart extract). Not all will be relevant or required. The user should mark (check) those he/she has appended, adding to the list as required. Note the acronyms: GBP (ground bearing pressure); IHA (job hazard analysis)/JSA (job safety analysis)/AHA (activity hazard analysis).
A-2.3.5 Notes. In this section, the user should include any further information (e.g., warnings, references, instructions) essential to the safety of the operation. This section may also detail the crane operating mode if not adequately described elsewhere.
Included in this section are
(a) a line allowing the user to compare the planned imposed ground loading (typically derived from a ground bearing pressure estimator further distributed through any load-spreading mats or blocking/cribbing provided) with the permissible ground bearing pressure (as derived from geotechnical data, calculation, or other informed guidance)
(b) a line in which the maximum wind speed for the operation should be entered
A-2.3.6 Signatures and Approvals. This section is to be completed by the preparer, checked, and approved by qualified and competent persons as required by governing policies (modify the sheet as required).
Where this document forms the official record of the operation, applicable legislation or contractual stipulations may require it to be stamped by a knowledgeable PE, in which case it shall appear prominently in a relatively clear area of the sheet.