Steel beam question
Steel beam question
(OP)
I have a beam in an existing building. The following measurements were taken: bf=6 3/4", d=12 1/8", tf= 7/16". There is no exact date on the structure, if I were to guess it would be sometime in the 1950's. I have a copy of the AISC 5th edition, but cannot find a size that matches the dimensions. Is there a resource that I can use which lists unconventional steel shapes?
Any thoughts would be appreciated.
Any thoughts would be appreciated.






RE: Steel beam question
First determine if it is an S or B shape (tapered flange or uniform thickness). The shapes are grouped by depth, then flange width. Look there. I would take the smallest Section modulus in that particular group to make sure I get the most conservative design.
If you are a member of AISC, and it is VERY cheap for almost everyone in your firm to be a member, the design guides are available for free download.
RE: Steel beam question
RE: Steel beam question
"BETHLEHEM STRUCTURAL SHAPES. Information and Tables for Architects, Engineers and Designers. Bethlehem,Pennasylvania, Catalog S 58 A, No date but probibly published in 1958 judging from catalog number. Vinyl bound ring binder in Bright Clean VG+ condition. Some Content includes: Angles,Tees and Zees. Standard Mill Practices. Beams,Flanges, Bearings, Shipbuilding, Sheet Piling, Car Building, etc"
Hope this helps.
Instead of bidding on this one you could probably find one on a rare book site.
RE: Steel beam question
RE: Steel beam question
RE: Steel beam question
Mike McCann
MMC Engineering