REVIEWED BLD2023-1282+Structural_Calculations+10.13.2023_7.45.22_AM+3839035Harriott Valentine Engineers Inc.
STRUCTURAL CALCULATIONS
Project:
Chapin
19311 83rd Place W
Edmonds, WA 98026
Architect:
LGH Studio
5319 2nd Ave NW
Seattle, WA 98107
Structural Engineer:
Harriott Valentine Engineers, Inc.
1932 First Avenue, Suite 720
Seattle, WA 98101
tel. 206-624-4760
_. !23
1932 First Avenue, Suite 720
Seattle, Washington 98101-2447
tel. 206-624-4760 1 fax 447-6971
BLD2023-1282
RECEIVED
Oct 13 2023
CITY OF EDMONDS
DEVELOPMENT SERVICES
DEPARTMENT
REVIEWED
BY
CITY OF EDMONDS
ASCE
AMERICAN SOCIETY OF CML ENGINEERS
Address:
19311 83rd PI W
Edmonds, Washington
98026
ASCE 7 Hazards Report
Standard: ASCE/SE17-22 Latitude: 47.823958
Risk Category: II Longitude: -122.345175
Soil Class: Default Elevation: 416.2104682235902 ft
(NAVD 88)
ernnw e
Wind
Results:
Wind Speed
98 Vmph
10-year MRI
67 Vmph
25-year MRI
74 Vmph
50-year MRI
78 Vmph
100-year MRI
83 Vmph
300-year MRI
92 Vmph
700-year MRI
98 Vmph
1,700-year MRI
105 Vmph
3,000-year MRI
109 Vmph
10,000-year MRI
118 Vmph
100,000-year MRI
136 Vmph
1,000,000-year MRI
154 Vmph
Data Source:
ASCE/SEI 7-22, Fig. 26.5-1 B and Figs. CC.2-1—CC.2-4, and Section 26.5.2
Date Accessed:
Wed Sep 20 2023
https://asce7hazardtoo1.onIine/ Page 1 of 5 Wed Sep 20 2023
AMERICAN SOCIETY 0E CK ENGINEERS
Value provided is 3-second gust wind speeds at 33 ft above ground for Exposure C Category, based on linear
interpolation between contours. Wind speeds are interpolated in accordance with the 7-22 Standard. Wind speeds
correspond to approximately a 7% probability of exceedance in 50 years (annual exceedance probability =
0.00143, MRI = 700 years). Values for 10-year MRI, 25-year MRI, 50-year MRI and 100-year MRI are Service
Level wind speeds, all other wind speeds are Ultimate wind speeds.
Site is not in a hurricane -prone region as defined in ASCE/SEI 7-22 Section 26.2.
https:Hasce7hazardtool.online/ Page 2 of 5 Wed Sep 20 2023
E�
AMERICAN SOCIETY Of CML ENGINEERS
Seismic Default
Site Soil Class:
Results:
PGA M : 0.62
TL
6
SMs 1.6
Ss
1.46
SM, 1.11
S,
0.53
SOS : 1.07
VS30
260
So, : 0.74
Seismic Design Category: D
Multi -Period MCER Spectrum
2
Multi -Period Design Spectrum
rT
04
.pp
0.2
8Y
Sa(g) vs T(s)
Sa(9) vs T(s)
ONE"
�+ w
Two -Period MICE R Spectrum 2
1.0 r" t
0.S «
w
0.6
02
0
Sa(9) vs T(s) V
Two -Period Design Spectrum
Sa(9)vs T(s)
MCER Vertical Response Spectrum Design Vertical Response Spectrum
Vertical ground motion data has not yet been made Vertical ground motion data has not yet been made
available by USGS. available by USGS.
hnps://asce7hazard1oo1.on1ine/ Page 3 of 5 Wed Sep 20 2023
E�
AMERICAN SOCIETY OF CIVIL ENGINEERS
Data Accessed: Wed Sep 20 2023
Date Source:
USGS Seismic Design Maps based on ASCE/SEI 7-22 and ASCE/SEl 7-22 Table 1.5-2. Additional data for
site -specific ground motion procedures in accordance with ASCE/SEI 7-22 Ch. 21 are available from USGS.
httos://asce7hazardtool.online/ Page 4 of 5 Wed Sep 20 2023
.�E"
AMERICAN SOCIETY OF CIVIL ENGINEERS
The ASCE 7 Hazard Tool is provided for your convenience, for informational purposes only, and is provided "as is" and without warranties of
any kind. The location data included herein has been obtained from information developed, produced, and maintained by third party providers;
or has been extrapolated from maps incorporated in the ASCE 7 standard. While ASCE has made every effort to use data obtained from
reliable sources or methodologies, ASCE does not make any representations or warranties as to the accuracy, completeness, reliability,
currency, or quality of any data provided herein. Any third -party links provided by this Tool should not be construed as an endorsement,
affiliation, relationship, or sponsorship of such third -party content by or from ASCE.
ASCE does not intend, nor should anyone interpret, the results provided by this Tool to replace the sound judgment of a competent
professional, having knowledge and experience in the appropriate field(s) of practice, nor to substitute for the standard of care required of such
professionals in interpreting and applying the contents of this Tool or the ASCE 7 standard.
In using this Tool, you expressly assume all risks associated with your use. Under no circumstances shall ASCE or its officers, directors,
employees, members, affiliates, or agents be liable to you or any other person for any direct, indirect, special, incidental, or consequential
damages arising from or related to your use of, or reliance on, the Tool or any information obtained therein. To the fullest extent permitted by
law, you agree to release and hold harmless ASCE from any and all liability of any nature arising out of or resulting from any use of data
provided by the ASCE 7 Hazard Tool.
hftps://asce7hazardtool.online/ Page 5 of 5 Wed Sep 20 2023
Harriott Valentine Engineers Inc.
SEISMIC DESIGN
ASCE 7-16
Equivalent Lateral Force Procedure
Occupancy Category
Seismic Design Category
D
Table 11.6-1
Importance Factor
1.00
Table 1.5-2
Site Class
D
Table 20.3-1
SS
146.00 %g
(from USGS Seismic Hazard Curves, 2008 data)
St
53.00 %g
(from USGS Seismic Hazard Curves, 2008 data)
Fa
1.00
Table 11.4-1
Fv
1.50
Table 11.4-2
Ct
0.02
Table 12.8-2
x
0.75
Table 12.8-2
hn
18.00 feet
(height to highest level)
SMs = Fa*Ss
1.4600
Eq. 11.4-1
SMi = Fv*S1
0.7950
Eq. 11.4-2
Sos = (2/3)*Sons
0.9733 g
Eq. 11.4-3
Sol _ (2/3)*SM1
0.5300 g
Eq. 11.4-4
Period Ta = Ct*hn^x
0.1748 s
Eq. 12.8-7
To
0.1089 s
"=.02*SD1/SDS"
Ts
0.5445 s
"=SD1/SDS'
R
6.5
Table 12.2-1
no
2.5
Table 12.2-1
Cd
4
Table 12.2-1
Section 9.5.5 ok?
Yes
Table 12.6-1
Equivalent Lateral Force Procedure
(section 12.8)
Cs
0.1497
Eq.12.8-2
W, weight
67,842 lb
per table below
V
10,159lb
Eq.12.8-1
Vertical Force Distribution (section 12.8.3)
k = 1.00
Floor
Seismic Floor
Wall Wall Total
(LRFD)
(ASD)
Level Hx
Area
Dead Ld Wt.
Length Wt. Wt. WxHx
Cvx QE
0.7QE
(ft)
(ft2)
(psf) (k)
(ft) (k) (k) (k-ft)
N (k)
(k)
roof 18.00
1981
18 35.7
54 1.9 37.6 676.8
71.3 7.25
5.07
floor 9.00
1680
15 25.2
70 5.0 30.2 272.2
28.7 2.91
2.04
1932 First Avenue, Suite 720
Seattle, Washington 98101-2447
tel. 206-624-4760 1 fax 447-6971
67.84 949.00 100.00 10.16 7.11
9/20/2023
Page _ of _
Harriott Valentine Engineers Inc.
WIND DESIGN
ASCE 7-16
Simplified Envelope Method (Chapter 28)
ps = Kztl ps3o
Part of Figure 28.6-1 - Adjustment Factor
for Building Height and Exposure,
Mean Roof Height
Exposure
(ft)
B
C
D
15
1.00
1 21
1.47
16
1.00
1.23
1.49
17
1.00
1.24
1.50
18
1.00
1.26
1.52
19
1.00
1.27
1.53
20
1.00
1.29
21
1.00
1.30
1.56
22
1.00
1.31
1.57
23
1.00
1.33
1.59
24
1.00
1.34
1.60
25
1.00
1.35
1.61
26
1.00
1.36
1.62
27
1.00
1.37
1.63
28
1.00
1.38
1.64
29
1.00
1.39
1.65
30
1.00
1.40
Part of Figure 28.6-1 - Method 2
Desian Wind Pressure. Ds3o
= adjustment factor = 1.00
1 = importance factor = 1.00
Kzt = topographic factor = 1.00
Zone
Computation
a = 10% of least horizontal dimension or
0.4 x h, whichever is smaller, but not less
than either 4% of least horizontal dimen-
sion or 3 feet. to
w= .2 8. x0.1 = z?RQft
h = I0 , 96-A ft x 0.4 = 1a-" ft
w = 22-96 ft x 0.04 = 9-e2'ft
r
a
2 a = &Mft
Zone B - end zone of roof
Zone A - end zone of wall
Zone D - interior zone of roof
Zone C - interior zone of wall
Basic
Speed
Roof
Angle
Roof
Pitch
Horizontal Pressures (psf)
A
B
C
D
97
0 to 5
flat
1=
-7.7
9.9
4.6
10
2
16.8
-7.0
11.2
4.1
15
3
18.8
-6.2
12.5
-3.6
20
4
20.7
-5.4
13.8
-3.0
25
6
18.8
3.0
13.6
1 3.1
30 to 45
7 to 12
16.8
11.5
1 13.4
1 9.2
Desian Wind Pressure. Ds
Basic
Speed
Roof
Angle
Roof
Pitch
Horizontal Pressures (psf)
A
B
C
D
0 to 5
flat
14.9
-7.7
9.9
-4.6
10
2
16.8
-7.0
11.2
-4.1
97
15
3
18.8
-6.2
12.5
-3.6
20
4
20.7
-5.4
13.8
-3.0
25
6
18.8
3.0
13.6
3.1
30 to 45
7 to 12
16.8
11.5
13.4
9.2
1932 First Avenue, Suite 720
Seattle, Washington 98101-2447
tel 206-624-4760 1 fax 447-6971
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