Return to index: [Subject] [Thread] [Date] [Author]

RE: Beam info needed

[Subject Prev][Subject Next][Thread Prev][Thread Next]

No.  I checked the First Edition AISC Steel Construction, 1927 which covered
the time period and designation in David's first inquiry.

Harold Sprague

> -----Original Message-----
> From:	Roger Turk [SMTP:73527.1356(--nospam--at)]
> Sent:	Thursday, June 15, 2000 12:40 PM
> To:	seaint(--nospam--at)
> Subject:	RE: Beam info needed
> Harold (and others):
> Did you check page 20 of AISC's Iron and Steel Beams, 1873-1952?
> A. Roger Turk, P.E.(Structural)
> Tucson, Arizona
> Harold Sprague wrote:
> >>David,
> If this is from the same family and era, I would be a bit suspicious.  The
> standard beam series only goes up to a maximum flange width of 6.25".  The
> flange width of 6.75" indicates this to be a Bethlehem Beam B series.  The
> closest fit would be with a B15x36.0 with a web thickness of 0.280" and a
> flange thickness of 0.355".  This can be confirmed if you measure the
> flange
> thickness at the flange gage line at 0.50".
>         B15x36.0
>         Ix = 410.9 in4
>         Sx = 55.12 in3
>         Iy = 21.7 in4
>         Sy = 6.45 in3
> How sure are you of the measurements?  It is best to scrape the steel as
> clean as possible removing paint and mill scale in spots and measure with
> a
> caliper at multiple points along the length of the beam.  I would measure
> the flange thickness at the edge, the flange thickness at the gage line,
> depth, and the web thickness in a few spots.  The web thickness is a bit
> of
> a challenge to measure with accuracy.  I would venture that it is likely
> that the web thickness measurements have a good probability of being
> generous.
> Sounds like a B15x36.0, with a fairly high carbon equivalent,  local
> crystalline lenses through the cross section, cast in Pittsburgh,
> Pennsylvania, 1933, probably the last Wednesday in October, north side of
> the mill, with a shift supervisor named Raul (married with 3 children).
> Sorry.... I just got a little carried away.  Ignore this last paragraph.
> Regards,
> Harold Sprague<<