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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 />-----~---- <br />-- .___X~in<D-~a~::__~___+ 102 MPH 110 MPH I 120 MPH 1 1.25~?E_.~14_0 M.PH <br />_______~~Lo~~_=__________t_!7 #/8 . Ft. 20 #/8 . Ft. 23 #l~!!:_~~_#t~q, F~.._, ~2 #/Sq. Ft. <br />Mi!x.i~_url!__ _ _,_ Allowable Roo!Area in 8qu!lre.f~e! f~r Various Loads on Post <br />Height Lo~d J.r1. L_bs ~_ 2" x 2" x 0.044" Hollow ~xtrusl~'!.~r <br />7'-4" 2,064 121 103 90 <br />8'.7" T54S- - -.-- ---91--~-,-.,77-- - - - - 67 <br />9'.10" (204 -7_1~ ---- ~6()-~ -+- 52 <br />11'.1" 903 53 45 39 <br />__u_ _~ __._ ___________ ___.. __ _.__ _ <br />H~t Load in Lbs 2" x 3" x 0.050" Hollow Extrusion or <br />8',2"- ~2,736--- 161-- - --.137 119 105 86 <br />- ---------..- ---- -- -----. <br />9'.6" 2,502 1~7___ ____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 />. . -----:---------j-------------------._-- --~. '. <br />.___Helght_n_~ J:.oad In Lb.!.-+.1"2C~~~.070"_Hollow ~xJr:.~s-,-~n-AllJmlnumAlloy 6063 T,6 <br />8'.2" 3,408. 200 ! 170 148 131 107 <br />--18:t" --. --~~~~~~---- ~".~--l~r---=r--~~u19~8~ -+ ~~1 ;~ ~~ <br /> <br />-- . ------------.-- ---------j-,-,------------I----- - , <br />12'.3" __..._ .J~~!......__~ 88 ~J~____L__~~___ _ L _ 57 47 <br />.H.!lig.h_t. _l..!:oac!Jn Lb~~" x 3" x 0.040" Roll Formed - ~uminum_~.II.2l' ~1 O~":i,14 <br />10'.0" 2d~____J__140 __IJ1.!L.---+___!~_=1_ _ ~~ , <br />11'.8" 1,786 105 I 89 78 69 <br />13'-4" . __1 ,3~~_ ~~_ _ 82= =r~ =- 69 ~ -~=r = - -6~- _ -: 53 <br />15',0" . 1 ,-q~2___ -i-- __6_1___.~_____~?_____L __ .45 . 40 <br />- ~~~~~,t . - !-'?~:-i60!-:-b! --+..1" ~ ~;~ 0.0~;0~6 FO~~~_- ~1~~inUf1) AIIC?r 3~ 105 H,14 113 <br />12'.10" '2:700 --~ -, {5~i---t 135 --t- - 117 104 84 <br />14'.8-;'-2:166 "1 --'--24---" 105 ,- 91 81 66 <br />16', " <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 />1 - <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 # 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 /> <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 /> <br />Lawrence E. Bennett, P.E. <br />Ct\II. ENG#EER - DE\IE1.OPfENT CONSU.. T ANT <br />P.O. BOX 4368, SOVTli DAYTONA, FL 32121 <br />TEl..EPHOIoE (9Q.4) 787- 4 n 4 <br />FAX (9Q.4) 787-8556 <br /> <br />SEAL <br /> <br />PAGE <br /> <br />62 <br /> <br />@ COPYRIGHT 1998 <br />NOT TO BE REPRODUCED N WHOU: OR N PART WTTHOUT nt:: WRITTEN PERIdSSlON OF LAWRENCE E. BENErT, P.E. <br />