Steel Buildings in Europe

Part 3: Actions 3 - 15 6.2.5 Multiple crane action There is often more than one crane in one building; they can move either on the same runway or on several levels in a same bay or in multi-bay buildings. Multiple cranes have to be considered in the most unfavourable position for:  The crane runway  The supporting structure. Table 6.1 Recommended maximum number of cranes to be considered in the most unfavourable position Cranes to each runway Cranes in each shop bay Cranes in multi-bay buildings Crane action Vertical 3 4 4 2 Horizontal 2 2 2 2 For horizontal crane actions, it is acceptable to limit the number of cranes acting with their payload to two; for vertical actions, the number of cranes varies from two to four. The cranes which are unloaded have nevertheless to be considered, if unfavourable. 6.3 Horizontal loads on parapets The characteristic values of the line loads q k acting at the height of the partition walls or parapets but not higher than 1,20 m should be taken from EN 1991-1-1 Table 6.12 or from the National Annex.