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Home > Forums > Structural Engineers > Activities > Demolition & Renovation engineering Forum

[b]bold[/b]Old Steel Beam Specifications(3)

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davides (Electrical)

5 May 04 8:50

I need to find specifications (hopefully free on-line download) for old steel beams, girders, and columns- for example a 20B59. I have structural drawings from a 1920's building in Brooklyn, NYC but no details. [The building is the St. George Hotel- which some of you may have visited years ago for a wedding or other event]. Thanks

denoid (Structural)

5 May 04 11:24

I don't know of any downloadable information for old steel beams, but there is a book which can be obtained from the American Institute of Steel Construction (AISC) entitled "Iron and Steel Beams 1873 to 1952", which should have the information you want.

(Or, if you have only a few sections to find, I can fax some pages to you if you get me the information).

JAE (Structural)

5 May 04 20:10

AISC has actually updated it and it is now one of their Design Guide series books -

bridgebuster (Civil)

7 May 04 12:47

davides,

Here's what I found in the AISC library:

Library: HISTORIC
Type: B
ID = 148
Designation = B20
W = 59
A = 17.36
D = 20
TW = 0.375
BF = 8
TF = 0.647
T = 17.487
K = 1.257
BF_2TF = 6.19
H_TW = 46.6
FY3P = 30
X1 = 2064
X2 = 9271
IX = 1172.2
ZX = 132.8
SX = 117.2
RX = 8.22
IY = 48.3
ZY = 19.7
SY = 12.1
RY = 1.66
J = 2.1
CW = 4523
a = 74.6
WNO = 38.7
SW = 50
QF = 23.9
QW = 66
FSTR = S3 1909,S4 1911,

I know the Saint George. It used to be the dorm for the school I went to, Polytechnic Institute of New York (formerly Polytechnic Institute of Brooklyn; now Polytechnic University)

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