Historical shape

Question

Historical shape

mshani (Structural)

(OP)

20 Oct 08 18:32

Does anybody know what does 6-H-24.1 stand for? I am checking capacity of an existing structure and came across this beam call-out which I could not find in the historical shapes excel sheet in AISC.

Thanks

jike (Structural) · Answer 1 · 2008-10-21 09:10:54

Seems backward.....could this be a 24H6 joist? The date on the drawings might give you a clue. Also an achitectural cross section might give you a clue.

mshani (Structural) · Answer 2 · 2008-10-21 09:38:23

Seems unlikely. The date on the drawings is 1928. The architectural section does not reveal anything (as usual). The building framing system is steel columns and beams and conrete pan joists for floor framing.

jike (Structural) · Answer 3 · 2008-10-21 10:41:03

If it is of that vintage, I am guessing that it may be calling out a propietary renforcing system for the concrete pan floor. I will check my references at home.

bridgebuster (Civil) · Answer 4 · 2008-10-21 12:06:57

I found this in the AISC Histroic Shapes Database. It's called an H3 but the weight matches. The H6's were either too heavy or too light.

Library: HISTORIC
Type: H
ID = 639
Designation = H3
W = 24.1
A = 7.01
D = 6
TW = 0.313
BF = 6
TF = 0.451
T = 4.268
K = 0.866
BF_2TF = 6.65
H_TW = 13.6
FY3P = -
X1 = 4974
X2 = 225
IX = 45.1
ZX = 17
SX = 15
RX = 2.54
IY = 14.7
ZY = 7.8
SY = 4.9
RY = 1.45
J = 0.5
CW = 113
a = 24.3
WNO = 8.32
SW = 5.63
QF = 3.56
QW = 8.52
FSTR = C 1921,C 1923,C 1926,

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Historical shape