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CECO Open Web Steel Joist 1

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mstructural

mstructural

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Jun 13, 2018
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This is probably a long shot but thought I would try anyway. I am working on a structural evaluation for an existing building, built between 1948 and 1949, with a roof framing system that includes steel bar joists. Based on the existing engineering drawings the bar joists are by CECO steel. Does anyone have a suggestion where I can find historical data on CECO steel bar joists (ex: catalog - see attached cover)? Any assistance will be greatly appreciated.
Thanks.
 
 https://files.engineering.com/getfile.aspx?folder=ee4670a1-fcb0-4803-83aa-042851d7b168&file=Cover_CECO.pdf
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Thanks JAE for replying to my post and for sharing that catalog. This 1967 catalog does not go far back enough to cover the case that I am dealing with (1948/1949). However, I have other existing buildings that will be looking at, built within this timeframe and there is a good chance that I might end up using it anyway. So here is a big thank you for you!
 
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SJI's historic catalog goes all the way back to the 1930s. Do your joists have the typical "SJ123" designations or is it all proprietary stuff?
 
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Here are the ones that I am looking at right now:
No.167 (Steel Joist)
No.184 (Long Span)
No.207 (Long Span)
No.3011 (Long Span)

They seem like proprietary shapes and sizes.
 
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There was an SJ167 in the SJI 1948 table:
Depth - 16 inches
Max. Resisting Moment - 281,000 in-lbs
Max. End Reaction - 3,600 lbs.

Span(ft)---Capacity (plf)
27--------257
28--------237
29--------223
30--------208
31--------195
32--------183




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JAE: yes I saw the same data on SJ167 in the SJI 1948 load table. So we should be in the clear with that one.
I did reach out to SJI via their "Joist Investigation Form" and they were very helpful and responsive. They sent me a copy of the load table for CECO's Long Span joist (see attached). Unfortunately, the table headers and sidebar titles have faded somewhat and almost illegible. I can barely read the "Joist Types", "Weight Lbs/ft", and "Max End Reactions" in there. But the span data is really hard to read. If anyone can make sense out of that part of the table, you'd be my hero.
 
 https://files.engineering.com/getfile.aspx?folder=822c595f-3db3-403a-951e-70ad6ffe8db9&file=CECO_LongSpan.pdf
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