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Design of Steel Catwalk Truss that is 3 sided

Design of Steel Catwalk Truss that is 3 sided

Design of Steel Catwalk Truss that is 3 sided

(OP)
I am being asked to design a truss for a feed conveyor that is just 3 sided. Meaning the outside handrails are part of a the truss and the walking surface is also but there is no top to the truss/conveyor. The top chord will be unbraced from support to support. For an example see the following link and scroll down 9 rows to one view a picture that has one: http://www.lemarindustries.com/new/index.php/2012-... .

To design one, I suppose you just design the top chord as a compression member with an unsupported length of the span. Any ideas?

RE: Design of Steel Catwalk Truss that is 3 sided

The AASHTO guide spec for ped bridges provides an example for designing a pony truss. It's also covered in "Guide to Stability Design Criteria for Metal Structures" - Galambos (editor).

RE: Design of Steel Catwalk Truss that is 3 sided

(OP)
Thanks

RE: Design of Steel Catwalk Truss that is 3 sided

good luck

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