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SECTION 2 A TT ACHED & FREEST ANDING COVERS AND UTILITY SHEDS Table 2.2.1: Allowable Attributable Roof Area per Post for Carports, Patio Covers, and other Open Buildings - ALUMINUM POSTS '---"--~-- -----._ _un, I Aluminum Post i Wind Load = 102 MPH 110 MPH I 120 MPH 140 MPH I A lied Load = 17 #IS . Ft. 20 #IS . Ft. 23 #IS . Ft. 26 #IS . Ft. I 32 #lSq. Ft.-l Maximum"" Allowable Roof Area in Square Feet for Various Loads on Post----r ~Height_+l-~acfinLbs -1-2" x 2" x 0.044" Hollow Extrusion or~-,__-~=-=--_~_=- - J ~__r4"__-L-- 2,064 +-- 121 I 103 +---~~--J __~ _. 65 ~---9~~~~~' - --~- +~~n___+__;~ -- ~~" ;--n~I- ~~ ~: f-----.--..--____._____,._ -.._-._- . ---------.---J...- ___.___._~_._..,_ ! 11'-1" . 903 53 45 39 35 28 I--------------_----t- --------------- '. _._~_ _______ _.._____0" _____ _ . . Height l:-oa~J!I_Lbs_~~"~~:-xj).()~f:)..H~IIo~ Extrlision or 8'.2" 2,736' 161 . 137 119 105 c- --9'~6"- "-2]02-i- --147-- -t----125-- --l--- 109 T 96 r- ---fOi~1fi. 1]00-----+---94- --r-ao-- -;----69 ----""--6T- --- - I ..0----_-- ----t-----_____._____.+--__~______~_--.__..____.__.~__ __..1-___. _____ 12'-3" . 1,197 I 70 . 60 . 52 . 46 37 ---..----.-.-------.L-____.___~_____ --..---_____ ____L.______..___..__ __~.---L _ _ _____ .L__ __ _ ..1.______ Hei ht . Load in Lbs 3" x 2" x 0.070" Hollow Extrusion - Aluminum AII~ 6063 T-6 8'-2" 3,408 -200----1--- 170~~-1- -f4S----:----:r3fT 107 -',~1~: -UtE .~. -::J~ :-."~-~~~~+:~~~r:!~~t_;i_~ Hei ht Load in Lbs 3" x 3" x 0.040" Roll Formed - Aluminum Alloy 3105 H-14 --~------1 ~~:~~:: ~:;:~ ~6~ __ ~~~~O: =t ~~_ =+==-_~~_-~~~ 13'4" 1,389 82 69 _~_ I __ __~_ =r ~ 4~ 15'~_ _J,042_ _~__ _~ _~_ 4s____1__ _4Q J _ 33 Height Load in Lbs 3" x 3" x 0.060" Roll Formed - Aluminum AI~ 3105 H-14 ---1~r~~,;-u-~~~~~--- ----r~----~ ~- ~~~u=t=--}~i -----i--~~~----r-~ -~~3 ;--~J4i-8".~-r_-~-?~_1~6 - _- r ---1_24-~t -----195---~ 91 . 81 66 [16'-6" 1,575 93 79 68 61 49 l- _H~~! Loadi~ Lbs . 3" x 3" x 0.060" FILJted Hollow Extrusion _ Aluminum 6063 T-6 I _~1'-!0" _ 3,4Q~_ ,) 200 I _ 170 . 148 131 107 r --l~:lg~ ~l :-HH~ __ Ej~_ J .~i ~_L ~~: J--!i-l n!~ .--: Example: Find Roof Area Needed; Area = 'A'; Post Spacing ='8'; Structure Projection = 'W': A = S x (W/2 + O.H.); If'S' = 7', W = 12', and O.H. = 2' then: 'Area' = 56 Sq. Ft. For a 10'-11" post and 120 m.p,h. wind load or 23 # I Sq. Ft. post choices are: 1) 2" x 3" x 0.044" Hollow Extrusion 2) All post sizes listed below.the 2" x 3" x 0,044" Hollow Section Note: Where job conditions dictate a post height of 10' in a 120 MPH wind zone, a 3" x 3" Roll Formed COULD NOT BE used because when it is more than 10' tall it can only support 39 SF of roof. On the other hand, a 3" x 3" Fluted Post with a post height of 10'. 7" can support an area of 128 square feet of area. Thus, design must satisfy both height and area requirements. 86 78 -------t--- ~--__.__._-----.j l__ _~Q_ . SEAL Lawrence E. Bennett, P.E. alii. .EMiNDf - DElI'B.OPI.BIT CONSU..TANr P,O. BOX 4388, 80Uni DAYTONA, Fl 32121 lB..EPHOfE (804) 787-4n4 FAX (804) 787-8558 PAGE 62 @ COPYRIGHT 1998 NOT TO BE REPRalUCED ~ WHOlE OR ~ PART WITHOUT TlE WRTTEN PERMS8ION OF LAWRENCE E. BENETT, P.E.