HomeMy WebLinkAboutElectronic Signed Copy 6601 S US 1
DATE: 6/4/20 Order No.: 20R483
CLIENT: Guy's Diversified, Inc.
ADDRESS: P. O. Box 946; Auburndale, FL 33823
PROJECT: Speedway #6485 Flat Wood Deck
ADDRESS: 6601 South US Highway 1; Port St. Lucie, FL 34952
ASCE 7-10 DESIGN PRESSURE CALCULATIONS
In Accordance with Chapter 30, Part I
Project Information: Flat Wood Deck
Height = 15' Exposure: C Ultimate Windspeed: Vult= 170 mph
Length = 60' Category: II Basic Windspeed: Vasd = 132 mph
Width = 42' Slope: < 7 Kz = 0.85
Parapet Wall: < 3'
Design Calculations:
Velocity Pressure: q = 0.00256*[0.85)(1.0)(1.0)(132)2]
= 37.9 psf
Width of Pressure Coefficient Zone: 0.1(42') = 4.2'
0.4(15') = 6.0' } use: a = 4.2'
Effective Wind Tributary Area: <10ft2
For parapet height 3 feet or larger, zone three (3) can be treated as zone two (2) (ASCE 7-10).
External Pressure Coefficient: Internal Pressure Coefficient:
1) GCP1 = -1.0 1) GCPi = 0.18
2) GCP2 = -1.8
3) GCP3 = -2.8
Design Pressures:
Zone 1 Field: P1 = 37.9*(-1.0 - 0.18) = -44.7 psf
Zone 2 Perimeter: P2 = 37.9*(-1.8 - 0.18) = -75.1 psf
Zone 3 Corners: P3 = 37.9*(-2.8 - 0.18) = -113.0 psf
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6/4/20
Speedway 6485
6601 S. US Hwy 1
Port St Lucie, FL
RAS 117 Design Pressure Calculations:
Row Spacing = 142 inches
Fastener Spacing = 6 inches
Fastener Density = 5.92 ft2
Fy = 310.6 lbs per fastener
Attachment Requirements:
Based on RAS-137 and N.O.A. #18-1126.06; with a wind design pressure of -52.5 psf; page 70 of 109,
the following are our recommended single ply TPO membrane fastening requirements:
Zone 1 Field: 6" o.c. @ laps in rows spaced 142" o.c. (Full Sheet)
Zone 2 Perimeter: 6" o.c. @ laps in rows spaced 71" o.c. (1/2 Sheet)
Zone 3 Corners: 6" o.c. @ laps in rows spaced 35.5" o.c (1/4 Sheet)
Notes: Corners and perimeter area dimension shall not be less than a = 4.2"
All work shall be in compliance with the local building code product control notice of
acceptance and manufacturer specifications and Florida Building Code 2014 edition. Wind
load calculations based on ASCE 7-10 and information provided by client.
All work shall be inspected by our field engineer or city inspector to verify compliance
with specifications.