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Crane runway column and base plate design

Crane runway column and base plate design

Crane runway column and base plate design

1. Can anybody help in telling me how to design free standing Runway columns. What are the formulas used and what guidelines to follow?
We normally take 10% of the live load and the hoist wt and apply it to the top of runway column modeling it as a cantilever. Is this approach good. Any ideas?

2. Design of base plates for runway columns?
What if there is no pier or foundation and the floor is only 6" to 12" thick. How can i determine the size of the base plate for a runway column?

Thanks in advance

RE: Crane runway column and base plate design

There is some discussion elsewhere on this site under "Structural Engineering Other Topics".  If you search you'll find a thread called Monorail Design Loads, which will give you some helpful information and list a few of the pertinent codes.

I'd suggest you may want to consider hiring a structural engineer for the work.

Foundation requirements are dependent upon the loads applied.  You don't know if the slab is 6" or 12": there's a big difference.  And what about rebar?  Again, why not leave the structural work to a structural engineer?

RE: Crane runway column and base plate design

Lateral design forces due to cranes are usually 20% of the crane capacity and the weight of the hoist and trolley.  I don't know what your crane capacity is, but if you plan on designing the column as a cantilever you will most likely run into lateral deflection problems.  Check CMAA 74 and AISC's "Light and Heavy Industrial Buildings" for more guidance.

Supporting the column on the slab sounds too risky with all of the uncertainties.  Unless the crane capacity is small, I would just install a new footing.

RE: Crane runway column and base plate design

Dear Mr.Haider1,

Detailed analysis and design , refer AISC " Steel Design Guide Series - 7" for Industrial Buildings. This clarifies better than other

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