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BUILDING
Structural Engineering Calculations for:
Spa Logic Hot Tubs
l42865VV Pacific Hwy
Tigard, OR
Raceway Letters
� Index
Title 1
Basis for Design Z
Wind Loads 3
Faotener[a|cs 4
Section Sketch S
Digitally vg,ed by Carl
' Carl Meyers
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09/21/2021
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Prepared by: Dave Knight OREGON
Reviewed by: Carl Meyers
RENEWS: 12/31C2022
YESCO.
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1605 South Gramercy Road
Salt Lake City, UT84104
Pkone: OU1.487.8481
9/21/2021
9:34 AM
BASIS FOR DESIGN
Project: Spa Logic Hot Tubs
Descript: Raceway Letters
Ref:
BUILDING CODE:
2019 OSSC 2019 EDITION OF THE OREGON STRUCTURAL SPECIALTY CODE
OSSC
LIVE/SNOW LOADS: NA
GRAVITY/DEAD LOADS:
RACEWAY LETTERS= 5 PSF
LATERAL LOAD PARAMETERS:
RISK CATEGORY= II
Use 2019 OSSC OSSC Wind Speed Map Figure1609A
WIND:
WIND SPEED,V ult= 97 MPH,3-SECOND GUST
WIND EXPOSURE = C
WIND LOAD ON SOLID SIGNS ATTACHED TO BUILDINGS
Project: Spa Logic Hot Tubs
Descript: Raceway Letters
Ref: ASCE 7- 16, Section 29.3.2 &Chapter 26 &30
ASCE 7-16,Section 29.3.2 checks: https://hazards.atcouncil.org/
If the sign meets the following criteria then the wind pressure is calculated using Chapter 30,with (Gcp,) equal to 0:
-The plane of The sign must be parallel to the plane of The wall.
-Any gap between the wall and the sign can be no greater than 3 ft.
-Signs can not extend beyond the side or top edges of the wall.
-If there is a gap between the sign and wall,the edge of the sign must be at least 3ft from all free edges of the wall.
Building,Sign and Terrain Info.
Building Mean Roof Height,h= 20.00 ft Length of wall (least horz.dim.)= 64.00 ft
Building risk category: II Region of zone 5:a = 6.40 ft
Height of Sign Above ground,z= 20.00 ft Basic Wind Speed,V„it= 97 mph (3-second gust)
Trib.Wall sign height: 2.64 ft Exposure Category: B
Trib.Wall sign length: 30.00 ft Ground Elevation: 276 ft
Effective Area: 79.06 f t 2
Sign Located in Zone: 5
ASCE 7-16 Section 26.10.2 Velocity Pressure
qh=0.00256 KZ KZt Kd Ke V2(Ib/ftz) (26.10)
Velocity pressure coefficient for sign height, KZ= 0.70 (Table 26.10-1)
Velocity pressure coefficient for mean roof height, KZ=Kh= 0.70 (Table 26.10-1)
Topographic factor, KZt= 1.00 (Sec.26.8.2)
Directionality factor, Kd= 0.85 (Table 26.6-1)
Ground elevation factor, Ke= 0.99 (Table 26.9-1)
Basic wind speed,V= 97 mph (Sec.26.5)
qh= 14.2 lb/ft 2
qZ= NA Ib/ft2
ASCE 7-10 Section 30.4.2 Design Wind Pressure(Buildings with h<=60 ft)
p=gh[(GCP-(GCP;)] (Ib/ftz) (30.3-1)
Where:
Mean roof height velocity pressure,q h = 14 Ib/ft^2 (26.10)
External,combined gust effect factor&Pressure coefficient,GCP= 0.84 -1.08 (Fig.30.3-1)
Internal,combined gust effect factor&Pressure coefficient,GCP;= 0 0 (Sec.29.3.2)
p = 11.9 lb/ft2 (Into sign) <16 psf,use 16 psf
p = -15.4 lb/ft2 (Away from sign) <-16 psf, use-16 psf
9/21/2021
WALL MOUNTED SIGNS 9:34AM
Project: Spa Logic Hot Tubs
Descript: Raceway Letters
Ref: 2019 OSSC Wind = 97 mph Exposure= B
Note Concerning Sign: Raceway Centered Vertically on Letters
Type of Sign: Raceway and Letters
Height of Raceway and Letters:(H) 2.64 ft
Overall Length of Raceway and Letters:(L) 30.00 ft
Depth of Raceway and Letters:(t) 9.38 in
Area of Raceway and Letters:(A) 59.30 sf,(75%of H*L for Letters)
Vert. Dist. between Top and Bottom Fastener Lines(d): 10.00 in
Vert. Dist. From Centroid to Furthest Fastener Line(y): 5.00 in
Wind Pressure(p): 16.00 psf(From Wind Sheet)
0.6p: 9.60 psf(ASD Load Combination)
Wind Force(W): 569.25 lbs
Moment From Wind: (Mw) 2846.25 lb-in
Pullout at Top Line from Wind: (TW) 284.63 lbs
Dead Load: 5.00 psf
Dead Force(D): 296.48 lbs
Moment from Dead:(MD) 1389.77 lb-in
Pullout at Top Line from Dead(TD) 138.98 lbs
Total Pullout at Top Line: (T) 423.60 lbs
Total Shear at Top Line:(V) 148.24 lbs
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/- RACEWAY LETTERS
�, Wall Type: EIFS or Stucco with Backing
Fastener Type: Powers Strap Toggle(1/4")
Assumes Composite Wall=50%CMU Values
Allowable Shear: 142 lbs per fastener
Allowable Tension: 135 lbs per fastener
Min.No.of Fasteners Per Line(for Tension) 4 fasteners per Line
Min. No.of Fasteners Per Line(for Shear) 3 fasteners per Line
Actual Number of Fasteners used per Line 8 Approx. 48 in o.c.(max)
- CSR: 0.52 O.K.
Use 8 fasteners(min)per line,Top and Bottom
9/21/2021
WALL MOUNTED SIGNS 9:34AM
Project: Spa Logic Hot Tubs
Descript: Raceway Letters
Ref: 2019 OSSC Wind = 97 mph Exposure = B
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t EIFS OR STUCCO WALL
W/PLYWOOD BACKING
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FASTENER HOLE REFERENCE ONLY,
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