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<br />. SECTION 2
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<br />PAGE
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<br />A TT ACHED & FREEST ANDING COVERS AND UTILITY SHEDS
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<br />'-...--
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<br />Table 2.2.1: Allowable Attributable Roof Area per Post for Carports,
<br />Patio Covers, and other Open Buildings - ALUMINUM POSTS
<br />
<br />.---"---- '_.n -.----- ---.-.-------------------~-..---________u___.__
<br />Aluminum Post
<br />.'~--- Wir1c:fL.oaci';;---'-----r-t 1-62MfitfI110MPH~I-120 MPH I 125 MPH 140 MPH
<br />=- ___~!iEl~~oa~_=_ _, ~-.;n, #/sct'~i~#/Sq.ft. 1=23 JH~q~ F(I-26 #/Sq, Ft. 3.2 #/si Ft.
<br />, Ma!i!"uml__~!I()wabl~~oof_A!e'! in S9!!~~iElet for V~rious Loads o_n Post
<br />Hei9!!! . Load in Lbs --L 2" x 2" x 0.044" Hollow Extrusion or
<br />- !'~-~~.=_~j,6!>1~~~__C~~-~f21 i 103 ~_~_=~-ii.-
<br />__ ~'. r~ _ _,_. 1,~8 ._~1,. _n_ ~__?L. __ ~, 67
<br />9'.10"1,204 71 , .60 52
<br />11'.1" 903 53 45 39
<br />.., HEli91l_t. L()~din Lbs 2" x 3" x 0.050" Hollow Extrusion or
<br />8'.2" 2,736 161 137 119 105 86
<br />9'_6" 2,502 147 125 109 96 78
<br />10'-11" 1,596 94 80 69 61 50
<br />12'_3" 1,197 70 60 52 46 37
<br />Height Load in Lbs 3" x 2" x 0.070" Hollow Extrusion - Aluminum Allo"'y 6063 T-6
<br />8'.2" 3,408 200 ,- -170 .. 148 '131 107
<br />9'-6" _ ..;. 2,556 150 128 111 98 80
<br />10'-11" i .1,988 I 117 , 99f 86 76 62
<br />~_-'-m---.'.--r ----,... .. ..+.-~ ...~-T-..---.-.----+n-'...u
<br />~__1?'-3"_. -+- _J,!~1 nu~_---~~.n----'---_-}.5---L _..,65 57 47
<br />Height. L I..oad in~.bs -1.3" x 3" .x_O~~O'.,~()!If()_r:Il1e~_:!'.I.~mil1_l.Im~~!I()y 3105 H-14
<br />r--r~;~~::- -+n1}~~--- i- -t6~u.--~-.--~~9-.l-- 1f{ I ~~
<br />'---13<4"-.-- r---{3S-9-- -In-ani "--r- -69'----i--- --'so . 53 '
<br />.--r5'-0~..-r-T642.--1-...-61--~r---5'2. T 45 : 40 '
<br />.'..'_n' . .-"'-T-". ---,- ,. ..,..-- __..,... ....L_..,_ un, ...___."_
<br />, ..Jie~9h..t, i ~_()ad inl.ll~ ..j3"X 3n~,O"-0~0'~RolI Formed -Aluminum Alloy 3105 H-14
<br />~_,11'-onn_,;-3,~()() ___ 21?n,_t_ ,1ao 1. 157 , 138 , 113
<br />12'-10" 2,700, 159 . 135 I 117 104 84
<br />'----'14'-8"" T)~f66 ". T' -124 -1" ..105 - 91 81 66
<br />i- -16'-6'" 1,575 93 79 68 61 49
<br />Height Load in Lbs 3" x 3" x 0.060" Fluted Hollow Extrusion - Aluminum 6063 T-6
<br />11'-10" 3,408 200 170 148 131 107
<br />13'-10" 2,556 150 128 111 98 80
<br />15'-10"_ ____.! ,9~li , 117 99 86 76 62
<br />.+ -
<br />17'-10" L.. 1,~9! ,1... 88 75 65 57 47
<br />
<br />Example:
<br />Find Roof Area Needed; Area = 'A'; Post Spacing ='S'; 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 # / 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 />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 />
<br />Lawrence E. Bennett, P.E.
<br />QI/I. ENtJIiEER - 0EVB.0PIBlIT ca>o1SU. TANr
<br />,P.O. BOX ... SOUTH DAYTONA, R. 32121
<br />TELB'HONE (804) 787-4774
<br />FAX (804) 787-8558
<br />
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<br />
<br />SEAL
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<br />62
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<br />@ COPYRIGHT 1998
<br />NOT TO BE REPROOUCED N WHOlE OR N PART WITHOUT nE WJUTEN PERMSSlON OF LAWRENCE E. BENETT, P.E.
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