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旧 2009-09-16, 04:39 PM   #1
huangyhg
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默认 ubc 1976-documen

ubc 1976-document
is there a copy of the ubc 1976 available somewhere on the internet. thanks!
get the ubc 97 here:
i'm looking for the seismic equations used on that code..
ok
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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