H-pile dimensions from 1960s

[tanelandry]

On construction drawings from the early 1960s, there is a note referring to all piles in this section to be "12"B.P. at 53 pounds". Are these BP 12x53 H-piles? Can somebody give me dimensions for this pile? Depth, flange width, web thickness, flange thickness, steel grade? I believe it would come from the 1956 AISI Steel Construction Manual.

Thank you in advance if you can help.

 

[wannabeSE]

The 12BP53 H Bearing Piles have the same dimensions in the 4th edition and the 5th edition AISC Steel Construction Manual.
Depth 11.780
Flange Width 12.046
Flange Thickness .436
Web Thickness .436
In the 7th edition, they began using the HP12x53 designation with the same dimensions

 

[drawoh]

tanelandry,

You should ask this in forum507. Its denizens are civil and structural engineers who are knowledgeable about stuff like this. Double posting is frowned upon, so you should red flag your question here.

--
JHG

 

[tanelandry]

Thank you-that's helpful. Would there be any difference at all between a current HP12x53 and a 1960s BP12x53?

 

[msquared48]

I can verify Wannabese's dimensions in the 1956 AISC.

As for the current dimensions (13th Edition), the new depth is shown as 11.8", the web and flange thicknesses as .435", and the flange width as 12.0".

Basically the same for all intents and purposes.

Mike McCann, PE, SE (WA)