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<br />SEAL <br /> <br />PAGE <br /> <br />SECTION 2 <br /> <br />A TT ACHED & FREEST ANDING COVERS AND UTILITY SHEDS <br /> <br />Table 2.2.1: Allowable Attributable Roof Area per Post for Carports, <br />Patio Covers, and other Open Buildings - ALUMINUM POSTS <br /> <br />-~- -- ----~ ~._----_._---- -~- --- ~-_.._--_._-_._-- ---- <br />Aluminum Post <br />Wind-Load =---- . 102 MPH i 110 MPH I 120 MPH ;125 riPH - 140 MPH <br />=~_~-Applied Load~_~~=~~~7 #/Sq. Ft. I 20 #/Sq. Ft. ~~B:_~ 26~#[[ci,-Ft, . 3:f#/5q, Ft. <br />- M~xJ!"lulT! _ __ _ _~ __ AIJowabl!..~oot~rea In S9!!~r~f~et for Various Loads on Post <br />Height Lo~d JI1 L_bs _ 2" x 2" x 0.044" Hollow Extrusl~~o.r <br />7'-4" 2,Q?~_1~~~__~__l03___ b_ 90 <br />8'-7" 1,548 91 .,.77. 67 <br />9'-10" 1:204 -"71-------60-- -+ 52 <br />- ---..- <br />11'.1" 903 53 45 39 <br />---- _____u_____._ .~_ _ .._____~__.____. _ <br />,_H~l9..h.t Lo.,!d in ~p~_ T' ..!l_::..~_O.Q~O" H()IJ~w Extrusion or <br />8'-2" 2,7~6_ 1~!..._ _ 131 119 105 86 <br />9'.6" 2,502 147 125 109 96 78 <br />10'.11" 1,596 _~-{-------,@_ ?9 61 50 <br />12'-3" 1,197 70 60 52 46 37 <br />.___Iieight____: ~oa-dinL.bi=ri" x 2'~x--o.oi(i.-' -H~'lo~~~klJ!:l!~n _-Aluminum Alloy 6063 T.6 <br />8'-2" 3,408 200 170 148 131 107 <br />'. 9':6" ----.' -2~55EY-- - ---150---+ ---128- I 111 ,98 80 <br />10'-11" " <988-. 117"1-' 99' r 86 : 76 62 <br />_~1.2'_.t__ '_~_= 1~49f~==:=--=88 tJ5 -=--t==~~~~ : 1_, 57 47 <br />!i~l9..h.t__._..!:oa.<!i~~~" x 3" x 0.040" Roll Formed - Aluminum AII..<:>y ~!O~ 1:l~14 <br /> <br />; ~:~~:: : -- -~~~~----J__~~~ ---r= 1819~ ----+---;~----I- .- ~.~. <br />; ;:~:: :-E~~=~-'=~---=~;-_-_~F~=~~=~=~r~' :~r--. ;~ <br /> <br />Height Load in Lbs I 3" x 3" x 0.060" Roll Formed - Aluminum Alloy 3105 H.14 <br />-'-"-0"- ~- --3,6-66-- -i--2f2--r-1W--r- -157 ,- -138 <br />12'-10"2,700159-- -+- - 135 - -i 117 104 <br />14'-8~'-2~160 --12'4- - . --;' 105 91 81 <br />1 61 <br /> <br />79 <br />60 <br />46 <br />35 <br /> <br />65 <br />48 <br />38 <br />28 <br /> <br />74 <br />56 <br />43 <br />33 <br /> <br /> <br />15'-10" <br />17'-10" <br /> <br />86 <br />65 <br /> <br />Example: <br />Find Roof Area Needed; Area = 'A'; Post Spacing ='5'; Structure Projection = 'W'; <br />A = S x (W/2 + O.H.); If'S' = 7', W = 12', and O.H. = 2' then: 'Area' = 56 Sq, Ft. <br />For a 10'-11" post and 120 m.p.h. wind load or 23 # I Sq. Ft. post choices are: <br />1) 2" x 3" x 0.044" Hollow Extrusion <br />2) All post sizes listed below the 2" x 3" x 0.044" Hollow Section <br />Note: <br />Where job conditions dictate a post height of 10' in a 120 MPH wind zone, a 3" x 3" Roll Formed <br />COULD NOT BE used because when it is more than 10' tall it can only support 39 SF of roof. On the <br />other hand, a 3" x 3" Fluted Post with a post height of 10'- 7" can support an area of 128 square feet of <br />area. Thus, design must satisfy both height and area requirements. <br /> <br />Lawrence E. Bennett, p"E. <br />ava. ENO/I'EER - ClE1IELOPfENT CONSI.L T ANT <br />P,O. BOX 4368, SOUTH DAYTONA, FL 32121 <br />TE...EPHQt.E (9Q.4) 787.. n. <br />FAX (9Q.4) 787-6556 <br /> <br />62 <br /> <br />@ COPYRIGHT 1998 <br />NOT TO BE REPRODUCED N WHOLE OR N PART WTT1-tOVT ~ WRITTEN PERJ.tSSION OF LAWRENCE E. BEN'oETT, P.E <br />