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<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 />:__ n==~jnd L~a~d::=-_==-::___L102 MPH I 110 MPH I 120 MPH~l 125j~W8~ ,140 MPH <br />____~~Loild =_______~7 #/Sq. Ft. i 20 #/Sq. Ft. 1~~_Ft._J_~#/~q; Ft. ~2 #/Sq. Ft. <br />Maximu"! ___ _ .n' Allowable Roof Area In S~~~_E~e!f~r Variou~ Loads on Post <br />Height LOild JI'! l:-_bs -i-_~" x 2" x 0.044" Hollow ~xtrusJ~,!_or m <br />7'-4" . .2,Q?~_ ___1~.L_~__1 03__ -l-. _ _ 90 <br />8'-7" 1,548 91 . ,.77 67 <br />9'-10" 1;?:04 - ?_1~-===-=-~O---- ~... 52 <br />11 '.1 " 903 53 45 39 <br />-- --._------ .--- - .------------- - <br />H~l9..ht L~!cll!!.!_!>.!' 2" .!l_~~_ 0.050" ~ollo..... Extrusi~n or <br />8'-2" 2,7~6_ 1~L 13_? 119 105 86 <br />9'-6" 2,502 147 125 109 96 78 <br />. __ _on _n_____ ...__ <br />10'.11" 1,596 94~9 ~9 61 50 <br />12'-3" 1,197 70 60 52 46 37 <br />Height. . - LoadlnLbs -T-3"x-2"-x-6.oio"Hoflow Extrusion - A-Iumlnum Alloy 6063 T-6 <br />----8'.2" -----3,4oa--'---206------;--170----'-u-148 . -131 107 <br />- ---.-. -- --.- -. --- - ---- -.------- .- --+ "-- - '---- ----t-o -____.._____ - _... ._ <br />,_ 9~=~" __ .2,~5~..+_1~____j____1_2_8 _.. i . 111 . 98 80 <br />_J O'-!] "_ _+_ .J,-~? __ __~__ 11? 1-----99 ----1 ____.?~ _ _;. ?6_ 62 <br />.__l2'._~~_ _1~_~ 88 7~_-1___J?L__ _ L. _ 57 47 <br />He1.9ht . Load in Lbs I 3" x 3" x 0.040" Roll Formed - Aluminum Allo~ 3105 H-14 <br /> <br />~~:~~:~_n_~_ t~~~-.=j -~~~ ---~-- ~~fL ----+=;~~-=--- ~r-- -:. - <br />13'-4" - -1:389-.----82----:----69----;---60 .- 53 <br />15;~0" -1~04y--1----61--+- -52----;- - -45--' 40 <br />.---- ----------1----------.-----1.----.--_.----l-_.._._ _ _ . <br />Height Load in Lbs . 3" x 3" x 0.060" Roll Formed - Aluminum Alloy 3105 H-14 <br />-11'-0" -- --3,f66-- ~.J----21f-":-~J~q_:_"1-- -157..' -138 <br />12'-10" 2,700 159' 135 . 117 104 <br />14'-8-"-2~f60 -; --f24- - - 105- u.~ 91 81 <br />16'-6" 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 />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 />Lawrence E. Bennett, P.E. <br />avL ENGtIEER . 0EVa0PlENT CON3U. T ANT <br />P.o. BOX 4368, SOlJTli DAYTONA, FL 32121 <br />TEI...EPHClt.e (904) 767- <4 n "- <br />FAX (904) 767.6556 <br /> <br />SEAL <br /> <br />PAGE <br /> <br />62 <br /> <br />@ COPYRIGHT 1998 <br />NOT TO BE REPAOOUCED ~ WHOlE OR ~ PART WITHOUT TtE WRITTEN PERMSSlON OF LAWRENCE E. 6EH'.ETT, PE. <br />