Liftem High Construction Co. has determined that the heaviest lift on a project they are estimating weighs 25,000 lb. The projects tower crane will make this lift (see Table 17.3). From the proposed tower crane location on the building site the required reach for this lift will be 80 ft. The crane will be equipped with a L5 jib and a four-part hoist line. This critical lift is of a piece of HVAC equipment and will require a 1,500-lb spreader bar attached to a 400-lb set of slings. If assembled in the proposed configuration, can the crane safely make the pick?
Load: | 25,000 lb |
Spreader bar: | 1,500 lb |
Slings: | 400 lb |
| 26,900 lb |
Safety factor | × 1.05 |
Required lift capability | 28,245 lb |
From Table 7.3, at 80 ft reach with a four-part line and a L5 jib configuration the tower crane has a 34,100 lb capacity.
We need at least 10 more requests to produce the solution.
0 / 10 have requested this problem solution
The more requests, the faster the answer.