Design of Spreader bar for lifting load
Design of Spreader bar for lifting load
(OP)
We are palnning to lift a 25 MT load by crane. Two 6 mts. slings will be utilized. About 3.5 mts. from load a spreader bar is required to be placed between two slings so as to protect the delicate portion of the load.
It seems the spreader bar will be under compresson and can be designed as long column susseptible to buckling.
Any idea / tip for safe design of the spreader bar
It seems the spreader bar will be under compresson and can be designed as long column susseptible to buckling.
Any idea / tip for safe design of the spreader bar






RE: Design of Spreader bar for lifting load
like these guys:
http://www.tandemloc.com/index.asp
http://www.zinterhandling.com
look @ ASME B30.20 "Below the Hook Lifting Devices"
RE: Design of Spreader bar for lifting load
You are correct that the spreader bar will be under compressive load. Also, if the ends where the cables from the crane are not attached at the neutral axis of the spreader bar, there will also be a bending moment induced in the beam which add to the buckling issue.
Regards
Dave
RE: Design of Spreader bar for lifting load
Check bearing, pull-out, and weld strength at your connecting points, also.
RE: Design of Spreader bar for lifting load
RE: Design of Spreader bar for lifting load
Could you please indicate wher to find the relevent code for selecting the al;lowable stress. I do not have a copy of AISC-ASD.
Regards
RE: Design of Spreader bar for lifting load