HomeMy WebLinkAboutWind Load Calculation FLORIDA BUILDING CODE 2014-5th Ed.-ASCE/SEI 7-10-WIND LOAD T $-170 175 mph
Enclosed Building with mean roof height less than or equal than 60 , -
EXPOSURE C AND D -LOAD FACTOR:0.6 INCLUDED rl U: k"U j
WIND PRESSURES IN PSF WND PRESSURES IN PSF
170 MPH VELOCITY-EXPOSUREC 170 MPH VELOCITY-EXPOSURE D
Building Roof Slope less than Roof Slope greater Building Roof Slope less than Roof Slope greater
Height 10 degrees than 10 degrees Height 10 degrees than 10 degrees
Positivel Negative Positive Negative Positive Negative Positivel Negative
z4&z5j z4 z5 z4&z5 z4 z5 z4&z5 z4 z5 z4&z5 z4 z5
0-15 34.6 37.5 46.1 37.8 41.0 50.6 0-15 42.0 45.5 56.0 45.9 49.8 61.4
16-20 36.8 39.8 49.0 40.2 43.6 53.8 16-20 44.2 47.8 58.9 48.2 52.3 64.6
21-30 40.0 43.4 53A 43.7 47.4 58.6 21-30 47.4 51.3 63.1 51.7 56.1 69.3
31-40 42.5 46.1 56.7 46.5 50.4 62.2 31-40 49.8 54.0 66.4 54.4 59.0 72.8
41-50 44.6 48.3 59.4 48.7 52.8 65.2 41-50 51.8 56.1 69.0 -5-6-61 61.3 75.7
51-60 46.3 1 50.2 61:8 1 50.6 54.9 67.8 51-60 53.4 1 57.8 71.2 58.4 1 63.3 78.2
LOCATION BROWARD COUNTY,PALM BEACH AND OTHER LOCATION BROWARD COUNTY,PALM BEACH AND OTHER
EXAMPLE COUNTIES EXAMO E COUNTIES
WIND PRESSURES IN PSF WIND PRESSURES IN PSF
175 MPH VELOCITY-EXPOSUREC 175 MPH VELOCITY-EXPOSURED
Building Roof Slope less than Roof Slope greater Building Roof Slope less than Roof Slope greater
Height 10 degrees than 10 degrees Height 10 degrees than 10 degrees
Positivel Negative Positive Negative Positive Negative Positive Negative
z4,&z5 z4 z5 z4&z5 z4 z5 z4&z5 z4 z5 z4&z5 z4 z5
0-15 36.7 39.7 48.9 40.1 43.4 53.6 0-15 44.5 48.2 59.3 48.6 52.8 65.1
16-20 39.0 42.2 51.9 42.6 46.2 57.0 16-20 46.8 50.7 62.4 51.1 55.4 68.5
21-30 42.4--46-0 56.6 46.3 50.2 62.1 21-30 50.2 5.4.4 66.9 54.8 59.4 73.4
31-40 45.1 48.8 60.1 49.2 53.4 65.9 31-40 52.8 57.2 70.4 57.6 62.5 77.1
41-50 47.2 51.2 63.0 51.6 56.0 69.1 41-50 54.9 59.4 73.1 60.0 65.0 80.2
51-60 49.1 53.2 65.4 53.6 58.2 71.8 51-60 56.6 61.3 75.5 61.9 67.1 82.9
E�FLE MIAMI-DADE COUNTY )ATIO MIAMI-RADE COUNTY
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GENERAL NOTES:
1-THESE TABLES ARE APPLICABLE ONLY TO CALCULATE THE WINDLOAD FOR COMPONENTS AND CLADDING (HVRRICANE
SHUTTERS.WINDOWS AND DOORSi APPLICABLE TO A SPECIFIC PROJECT.THE CONTRACTOR MUST PROPERLY SELECT THE DESIGN
PRESSURE ACCORDINGLY WITH THE EXISTING CONDITION AND THIS INFORMATION BE VERIFIED BY THE CITY AUTHORITIES.
2-PLEASE,NOTE THAT A SPECIFIC PROJECT CONDITION IS NOT ANALYZED OR CERTIFIED BY THIS ENGINEER. THE SIGNATURE
AND SEAL INDICATED ON THIS DRAWING IS ONLY APPLICABLE TO THE GENERIC WINDLOAD CHART BASED ON ASCE 7-10 PUBLICATION.
3-DO NOT USE THIS SHEET IF THE SITE CONDITION IS NOT COVERED BY THE TABLES OR A SITE SPECIFIC EVALUATION IS
REQUIRED BY THE CITY OFFICIALS.
4-EXPOSURE B(Section 26.7.3)-Urban,suburban and wooded areas and other terrain with numerous closely spaced obstruction having the
size of single family dwellings.For building-30ft exposure B prevails In the upwind direction for a distance greater than 1500 fL For building>30ft
exposure B prevails in the upwind direction for a distance greater than 2600 ft or 20 times the building height,wichever is greater.Based on the FBG
HVHZ,use Exposure C when building is located in Exposure B
5-EXPOSURE C(Section 26.7.3)-Open terrain with scattered obstructions with heights less than 30',open country and grasslands.Exposure
C vin71 apply when exposure D and B do not apply.
6-EXPOSURE D(Section 26.7.3)-Flat,unobstructed areas and water surfaces prevails in the upwind direction for a distance greater than 5000
ft or 20 times the building height,whichever is greater
7-BUILDING CONSIDERED ENCLOSED-AD glazing shall be Impact resistant glazing or protected with an impact resistant covering.
8-ULTIMATE WIND SPEED-V=170 MPH,175 MPH •• ••f9-TOPOGRAPHIC FACTOR �s���i�i
LAT TERRAIN)
10-DIRECTIONALITY FACTORi Kd= 85(Wind Directionality Factor) �1,•• �•A• • ,,��'�.•
11-TRIBUTARY AREA:10 SQF ��� \r�° ���f�•g
12-EDGE STRIP(a):The smaller of 10%of the least horizontal dimension or 40%of theb, �� ,.•'' Iv EMS, •
Mean roof height,but not less than the larger of 4of the least horizontal dimension or 3 ft.
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51, Pompano Beach-Florida 33069
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B less or equal than BL DATE: 07/21/2017
a must not be less than PEDRO DE FIGUEIREDO-PE 52609
a=3 feet or a=0.04 x BW NOT VALID W/OUT SEAL 7/21/2017
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