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ATTACHED & FREE-STANDING COVERS AND UTILITY SHEDS SECTION 2 Table 2.3 Schedule of Post to Beam Size and Number of Thru-Bolts Required Aluminum Alloy 6063 T-6 Beam Minimum I # Thru-Bolts @ L=D+'J.R I Minimum M,Inlmum # Size Post Size I 1/4R. 318" . I Knee Brace" Knee Brace Screws Hollow Sections 2R x 3R x 0.050" Hollow Tlltl3" x 3"x 0.060" Scalloped I 2 I - I 2" x 3" x 0.050" (3) m3 2R x 4R X 0.050R Hollow 13" x 3" x 0.060" Scalloped 2 I - I 2" x 3" x 0.050' I (3) m3 Self Mating Beams 2R x 4" x 0.038" X 0.100 3" x 3"x 0.060' Scalloped 2 - 2" x 3" x 0.050' (3) m3 2" x 5" x 0.050" X 0.100 3" x 3"x 0.060" Scalloped 2 - 2" x 3" x 0.050" (3) m3 2" x 6" x 0.050" X 0.120 3" x 3"x 0.060" Scalloped 2 - 2" x 3" x 0.050" (3 #10 2" x 7" x 0.055" X 0.120R 3" x 3" x 0.093' 3 2 2" x 4" x 0.050" (3 #10 2R x 8" x o.on" x 0.224R 3" x 3" x 0.093' 3 2 2" x 4" x 0.050' (3 #12 ,,~. " x 0.224R 3" x 3" x 0.125" 4 3 2" x 4" x 0.050' (3 #14 2" x 9" x 0.082" x 0.306" 3" x 3" x 0.125" 4 3 :t"X .... X 0.o5OI 3 #14 2" x 10R x 0.092" x 0.369" 4" x 4" x 0.125" 6 4 2" x 4" x 0.050" (4) #14 The minimum number of thru bolts Is (2) " Minimum post/beam may be used as minimum kn_ brace Table 2.4.1 Footings" Maximum Roof Area for Attached Carport Posts Wind Zone. 100 MPH 110 MPH 120 MPH 123 MPH 130 MPH 140 MPH 150 MPH Attached Cover UDlift . " 20 iIISF 24 iIISF 29 iIISF 30.5 iIISF 34 iIISF 39 iIISF 45 iIISF Free-Standlna Cover UDIIft a 10 iIISF 11 #lSF 13 #lSF 13.3 iIISF 17 #lSF 20 #lSF 23 #lSF Existing Slab on Grade with unknown 20 18 15 14 13 11 10 reinforcement Isolated Footing Uplift Maximum Attributable Roof Anla In Square Feet Dimension.- RatIng (Ibs.) 1'.()" x 1'.()" X 1'.()R 520 26 21 18 17 15 13 11 1'-4" x 1'-4R x 1'-4R 1000 50 41 34 33 29 26 22 1'-6" x 1'-6R x 1'-6R 1320 66 55 45 43 39 34 29 1'-8" x 1'-8" x 2'.()" 2040 102 85 70 67 60 52 45 1'-8" x 1'-8" x 2'-6R 2540 127 106 88 84 75 65 57 2'.()" x 2'.()" X 2'.()R 2640 132 110 91 87 78 68 59 2'.()R x 2'.()" x 2'-6" 3300 165 138 114 108 97 85 73 2'-6" x 2'-6R x 2'-6" 4000 230 191 158 151 135 118 102 2'-6" x 2'-6" x 3'.()" 4800 276 230 190 181 162 141 123 Notes: 1. Isolaled Fooling is a poured concrete rectangular solid (Length x Width x Depth). 2. Slab on grade must be new or in good condition. 3. For tree-standing covers multiply the above root areas by 2.0. Pre-Cast Block Footing Pre-cast footing block ( 16" x 16R x 4" ) at 24R below grade with 80 tI bag pre-mlx concrete and backfilled to grade. Maximum Attributable Roof Area In Square Feet 100 MPH 110 MPH 120 MPH 123 MPH 130 MPH 140 MPH 150 MPH Dimensions Uplift Rating (Ibs.) 20 iIISF 24 iIISF 29 #lSF 30.5 tllSF 34 iIISF 39 ii/SF 45 #lSF 1 x 80# Bag 1,734 87 72 60 57 51 44 38 2 x 80# Bag 1,819 91 76 63 59 54 46 40 3 x 80# Bag 1,904 95 79 66 62 56 49 42 Note: Maximum uplift on post is determined by mu/tipying maxlmum attributable roof area x applied load. Example: Post tributary root area = 77', Applied load for 110 MPH wind zone = 24#1Sq. Fl, Uplift on post = 77 x 24 = 1,540# " Root areas are based on attached cover uplift loads. Lawrence E. Bennett, P. E. CIVIL ENGINEER - DEVELOPMENT CONSUL TANT P.O. BOX 04368, SOUTH DAYTONA. FL 32121 TELEPHONE (386) 707-4774 FAX (386) 767-6556 SEAL @ COPYRIGHT 2002 PAGE '~OT TO BE REPRODUCED IN WHOLE OR IN PART WITHOUT THE WRfTTEN PERMISSION OF LAWRENCE E BENNETT, P.E. 2-41 "--