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., ATTACHED & FREE-STANDING COVERS AND UTILITY SHEDS, SECTIC ,-J 2 Table 2.3 Schedule of Post to Beam Size and Number of Thru-Bolts Required Aluminum Alloy 6063 T-6 ..- Beam Minimum # Thru-Bolt (ij) L=D+Y," Minimum Min. Ii ,',nee Size Post Size 1/4" III 3/8" " Knee Brace* Brace Saews 2" x 3" x 0.050" Hollow Tilt 3"x 3"x 0.060" Scalloped 2 - 2" x 3" x 0,050" (3).~ 2" x 4" x 0.050" Hollow 3"x 3"x 0,060" Scalloped 2 - 2" x 3" x 0,050" (3\;'8 '...:- 2" x 4" x 0,038" x 0,100" Self Mating Beam 3"x 3"x 0,060" Scalloped 2 - 2" x 3" x 0,050" (3);~ 2" x 5" x 0.050" x 0,100 Self Mating Beam 3"x 3"x 0,060" Scalloped 2 - 2" x 3" x 0,050" (3):'-L- 2" x 6" x 0,050" x 0.120" Self Mating Beam 3"x 3"x 0,060" Scalloped 2 - 2" x 3" x 0,050" 13\.:./..!..!!..- 2" x 7" x 0.055" x 0.120" Self Mating Beam 3" x 3" x 0,093" 3 2 2" x 4" x 0,050" (3\1#10 2" x 8" x 0,072" x 0.224" Self Mating Beam 3" x ~ 3 . 2" x 4" x 0,050" (3) #12 4 2" x 4" x 0,050" ('J) #14 ~6" Self Mating Beam 3" x 3" x 0,125" 4 3 2" x 4" x 0,050" (3)#14 The minimum number of thru bolts is (2) * Minimum post/beam may be used as minimum knee brace Table 2.4 Footings - Maximum Roof Area for Carport Posts Wind Zone = I 102 MPH 110 MPH I 120 MPH 125 MPH I 140 MPH Applied Load = 17 #/Ft.2 20 #1Ft. 2 23 #/Ft. 2 26 #/Ft. 2 32 #/Ft~ Existing Slab on Grade with unknown 20 17 15 13 10 reinforcement Isolated Footing Rating # Uplift Dimensions** Maximum Attributable Roof Area in Square Feet 1'-0" x 1'-0" x 1'-0" 520 30 26 22 20 16 1'-4" x 1'-4" x 1'-4" 1000 59 50 43 38 31 1'-6" x 1 '-6" x 1 '-6" 1320 77 66 57 51 41 1 '-8" x 1 '-8" x 2'-0" 2040 120 102 89 78 64 1 '-8" x 1 '-8" x 2'-6" 2540 150 127 111 98 80 2'-0" x 2'-0" x 2'-0" 2640 155 132 115 102 83 2' -0" x 2'-0" x 2'-6" 3300 194 165 143 127 103 2'-6" x 2'-6" x 2'-6" 4000 270 230 200 177 144 2'-6" x 2'-6" x 3'-0" 4800 324 276 240 212 172 "Notes: Isolated Footing is a poured concrete rectangular solid (Length x Width x Depth). Slab on grade must be new or in good condition. Pre-Cast Block Footing Pre-cast footing block ( 16" x 16" x 4") at 24" below grade with 80 # bag pre-mix concrete and backfilled to grade. Dimensions Uolift Ratina # Maximum Attributable Roof Area in Sauare Feet (1\ 80# Ban 1,734 102 87 76 67 54 (1\80# Baa 1,819 107 91 79 70 57 (1) 80# Baa 1,904 112 95 83 73 60 Note: Maximum uplift on post is determined by multipying maximum attribl;table roof area x applied load. Example: Post tributary roof area = 77' Applied load for 110 MPH wind zone = 20#/Sq, Ft. Uplift on post = 77 x 20 = 1,540# Lawrence E. Bennett, P.E. CIVIL ENGINEER - DEVELOPMENT CONSUL TANT P.O. BOX 4368, SOUTH DAYTONA, FL 32121 TELEPHONE (904) 767-4774 FAX (904) 767~556 SEAL @ PAGE COPYRIGHT 2000 NOT TO BE REPRODUCED IN WHOLE OR IN PART WITHOUT THE WRITTEN PERMISSION OF LAWRENCE E. BENNETT, P.E. 2-25