HomeMy WebLinkAboutDESIGN CALCULATIONSDESIGN CALCULATIONS
FOR J'Cq
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CAFE
WALL -MOUNTED SIGNS
4812 N Kings Hwy— Fort Pierce
GENERAL NOTES:
1. Design is in accordance with the Florida Building Code 5th Edition (2014) for
use within and outside the High Velocity Hurricane Zone (HVHZ).
2. Wind loads have been calculated per the requirements of ASCE 7-10 as
shown herein.
3. These engineering calculations pertain only to the structural integrity of
those systems, components, and/or other construction explicitly specified
herein and/or in accompanying engineering drawings. The existing host
Index:
structure (if any) must be capable of supporting the loaded system as
Pg 1 Cover
verified by building department or architect / engineer of record. No
Pg 2 Wind Loads
warranty, either expressed or implied, is contained herein.
Pg 3 Anchor Design
4. System components shall be as noted herein. All references to named
components and installation shall conform to manufacturer's or industry
r
specifications as summarized herein.
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5. Where site conditions deviate from those noted herein, revisions may be
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required or a separate site -specific engineering evaluation performed.
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6. Aluminum components in contact with steel or embedded in concrete shall
be protected as prescribed in the 2010 Aluminum Design Manual, Part 1.
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Steel components in contact with, but not encased in, concrete shall be
coated, painted, or otherwise protected against corrosion.
7. Engineer seal affixed hereto validates structural design as shown only. Use
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2
of this specification by contractor, et. AI, indemnifies and saves harmless
this engineer for all costs & damages including legal fees & apellate fees
Chrisjiaiij�ati'g gyp ��?[tE�# 67382
resulting from deviation from this design.
Easy Se�IS�emnG Auth # 31124
Federal Hwy, N200 Easy Seals .com Page 1
Bacaoca Raton, FL 33432
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' / SCE 7-10 Design Wind Loads
WALL -MOUNTED SIGNS
Building Specs
V = 170 mph Basic wind speed
Exposure C
Calculations
a= 9.5 3-sec gust speed power law exponent
zg = 900' Nominal ht. of atmos. boundary layer
Gcpi = 0 Internal pressure coeff
170 mph - Exp
.,C"
WALL -MOUNTED SIGNS
ASD WIND PRESSURES
SIGN
CENTER
CORNER
HEIGHT
(zone 4)
(zone 5)
15 ft
35.2 psf
44.8 psf
20 ft
37.4 psf
47.6 psf
25 ft
39.2 psf
49.9 psf
30 ft
40.8 psf
51.9 psf
35 ft
42.1 psf
53.6 psf
40 ft
43.3 psf
55.1 psf
45 ft
44.4 psf
56.5 psf
50 ft
45.4 psf
57.8 psf
55 ft
46.3 psf
58.9 psf
60 ft
47.2 psf
60.0 psf
70 ft
39.9 psf
79.7 psf
80 ft
41.0 psf
82.0 psf
90 ft
42.0 psf
84.1 psf
100 ft
43.0 psf
86.0 psf
110 ft
43.8 psf
87.7 psf
120 ft
44.7 psf
89.3 psf
130 ft
45.4 psf
90.8 psf
140 ft
46.1 psf
92.3 psf
150 ft
46.8 psf
93.6 psf
175 ft
48.4 psf
96.7 psf
200 ft
49.7 psf
99.5 psf
250 ft
52.1 psf
104.2 psf
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CALCULATIOP ' R =OR WALL -MOUNTED SIGNS
ASD Load Combo Coeff: 0.6
Kd = 0.85 Directionality factor
Kzt = 1.0 Topographic factor
A = 10 sq ft Tributary area
Y Y
qz
CU7
lU7 17
0.85
53.4
-1.10
-1.40
0.90
56.7
-1.10
-1.40
0.95
59.4
-1.10
-1.40
0.98
61.8
-1.10
-1.40
1.01
63.8
-1.10
-1.40
1.04
65.6
-1.10
-1.40
1.07
67.3
-1.10
-1.40
1.09
68.8
-1.10
-1.40
1.12
70.2
-1.10
-1.40
1.14
71.5
-1.10
-1.40
1.17
73.8
-0.90
-1.80
1.21
75.9
-0.90
-1.80
1.24
77.8
-0.90
-1.80
1.27
79.6
-0.90
-1.80
1.29
81.2
-0.90
-1.80
1.32
82.7
-0.90
-1.80
1.34
84.1
-0.90
-1.80
1.36
85.4
-0.90
-1.80
1.38
86.7
-0.90
-1.80
1.42
89.5
-0.90
-1.80
1.46
92.1
-0.90
-1.80
1.53
96.5
-0.90
-1.80
Page 2
. fc�1�yseal5
CALCULATICIP =OR WALL -MOUNTED SIGNS
' Wall Sign Anchor Design
Structure Dimensions & Loading
Design wind pressure:
Sign type:
Sign size:
P = 51.9 psf
Channel Letter
A = 4.0 sgft (per letter, critical)
Wall material: ''W6-67d CDX or equiv, thickness to match Min Embed
Anchor type/size:1/4"-Toggle,8o t, )-
Ref: Powers Toggle Bolt, catalog
Min Embedment: 0.5"
Min edge dist: 2" Min Spacing: 1.5"
Anchor tensile capacity: Tcap = 87.5 lb (per anchor)
Check Anchors for Pullout
Total Reaction: Rt = 208 lb ... = P*A (per letter)
No. of anchors req'd: n = 2.4 anchors per letter ... = Rt/Tcap
Total a qhc qrs rEquir4�lE 3 apchors_perietter'
OK, critical anchor option shown.
Page 3