Errata to ANSI/AWWA D103-09
Standard for
Factory-Coated Bolted Carbon Steel Tanks for Water Storage
(October 2010)
1. Page65,replacethecaptionforFigure17asfollows:
Figure 17 Region-dependent transition period for longer-period ground motion TL (sec), for the conterminous United States
2. Page66,replacethecaptionforFigure17asfollows:
Figure 17 (continued) Region-dependent transition period for longer-period ground motion TL (sec), for the conterminous United States
3. Page67,replacethecaptionforFigure17asfollows:
Figure 17 (continued) Region-dependent transition period for longer-period ground motion TL (sec), for Region 1
4. Page68,replacethecaptionforFigure17asfollows:
Figure 17 (continued) Region-dependent transition period for longer-period ground motion TL (sec), for Alaska
5. Page69,replacethecaptionforFigure17asfollows:
Figure 17 (continued) Region-dependent transition period for longer-period ground motion TL (sec), for Hawaii
2
6. Page70,replacethecaptionforFigure17asfollows:
Figure 17 (continued) Region-dependent transition period for longer-period ground motion TL (sec), for Puerto Rico, Culebra, Vieques, St. Thomas, St. John, St. Croix, Guam, and Tutuila
Also in the middle of the figure itself, delete the words “FIGURE 22-19
LONG-PERIOD TRANSITION PERIOD, TL (SEC), FOR PUERTO RICO, CULEBRA,
VIEQUES, ST. THOMAS, ST. JOHN, AND ST. CROIX.”
7. Page71,replacethefigurewithnewFigure18asfollows:
Spe
ctra
l Res
pons
e A
ccel
erat
ion
(mul
tiple
of 9
)
Period T (sec)
SaM = 1.5 Fa
SaM = 0.6 Fv
T
Figure 18 Deterministic lower limit for maximum considered earthquake ground motion
8. Page86,inthenotationdefinitionsthatfollowEq14-52,replacethedefinitionforTL
asfollows(change“Figure19”to“Figure17”):
TL = region-dependent transition period for longer period ground motion, in seconds, shown in Figure 17
9. Pages93–97,replaceFigure20,BasicWindSpeedV(infiveparts),withnew
Figure20onpages4to8ofthiserrata.
3
10. Page98,inthenotationdefinitionsthatfollowEq15-3,replacethedefinitionforPaw
asfollows(change“Sec.13.1”to“Sec.15.1”):
Paw = average wind pressure acting over H, in pounds per square foot. The average wind pressure shall be based on wind pressures defined in Sec. 15.1
11. Page118,inthefirstparagraphofSec.A.14.3.1,Naturalperiods,change“Sec.A.1.4”
to“Sec.A.2.”
4
Reprinted with permission from ASCE.
Figure 20 Basic Wind Speed V
5
105145
V mph
Values are nominal design 3-second gust wind speeds in miles per hour (m/s) at 33 ft (10 m) above ground for Exposure C category.Linear interpolation between wind contours is permitted.Islands and coastal areas outside the last contour shall use the last wind speed contour of the coastal area.Mountainous terrain, gorges, ocean promontories, and special wind regions shall be examined for unusual wind conditions.
170145125
(47)(65)(76)(65)(56)
LocationHawaiiPuerto RicoGuamVirgin IslandsAmerican Samoa
Notes:1.
2.3.
4.
100(45)110(49)120(54)
130(58)90(40)
Special Wind Region
(m/s)
150(67)
140(63)
140(63)
110(49)
120(54)
90(40)
100(45)
90(40)
130(58)
130(58)
140(63)150(67)140(63)
Reprinted with permission from ASCE.
Figure 20 (continued) Basic Wind Speed V
6
Reprinted with permission from ASCE.
Figure 20 (continued) Basic Wind Speed V, Western Gulf of Mexico hurricane coastline
7
Reprinted with permission from ASCE.
Figure 20 (continued) Basic Wind Speed V, Eastern Gulf of Mexico and Southeastern US hurricane coastline
8
90(4
0)
100(
45)
110(
49) 12
0(54
) Spe
cial
Win
d R
egio
n
Not
es:
1. V
alue
s ar
e no
min
al d
esig
n 3-
seco
nd g
ust w
ind
s
peed
s in
mile
s pe
r ho
ur (
m/s
) at
33
ft (1
0 m
)
abo
ve g
roun
d fo
r E
xpos
ure
C c
ateg
ory.
2.
Lin
ear
Inte
rpol
atio
n be
twee
n w
ind
cont
ours
is
p
erm
itted
. 3.
Isla
nds
and
coas
tal a
reas
out
side
the
last
c
onto
ur s
hall
use
the
last
win
d sp
eed
cont
our
o
f the
coa
stal
are
a.
4. M
ount
aino
us te
rrai
n, g
orge
s, o
cean
p
rom
onto
ries,
and
spe
cial
win
d re
gion
s sh
all
b
e ex
amin
ed fo
r un
usua
l win
d co
nditi
ons.
90(4
0)
Reprinted with permission from ASCE.
Figure 20 (continued) Basic Wind Speed V, Mid- and Northern Atlantic hurricane coastline
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