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UBC 1976-document 1

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Elindio1

Structural
Joined
Oct 13, 2006
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21
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PR
Is there a copy of the UBC 1976 available somewhere on the internet. Thanks!
 
I'm looking for the seismic equations used on that code..
 
I have a copy of the '79, maybe the '76 in my archives.

Are you loooking for V= ZIKCSW and it's linked equations?

K in Table 23-I (0.67 thru 2.5 depending on structure)
CS <= .14
C = 1/(15 * sqrt T)
T = .05 Hn / sqrt D
Z = zone factor
Zone 1 = 3/16
Zone 2 = 3/8
Zone 3 = .75
Zone 1 = 1.0
D = structure dimension in direction of applied force
I = Importance factor (1.0, 1.25 & 1.5)
S = 1.5 default value


Mike McCann
McCann Engineering
 
The equations above are from the '79 code. I am looking for the '76, but the '73 is different -

V = ZKCW, with C = .05 / cube root of T

Basically the same K factors, but with a max of 3.0

Only three Z zones, .25, .5 and 1.0

So, I guess I better look for '76

Mike McCann
McCann Engineering
 
1976 is the same as 1979.
 
Basically, yes. No changes noted in the '79 for the equations used.

Mike McCann
McCann Engineering
 
Thanks...it is exactly what I'm looking for...
 
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