10180120_1125 N. JACKSON - Plan (2)

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7.0 Requirements for Surface Mounted Posts on Concrete Slabs or Footings for Sigle Span Attached Lattice Structures REQUIRED NUMBER OF POSTS FOR SINGLE SPAN LATTICE UNITS WITH SURFACE MOUNTED POSTS ON CONCRETE SLABS OR FOOTINGS Table Lla: Use this table for the following headers Table Llb: Use this table for the following headers 3x8 Alum Header Double 3x8 Alum Header Double 2*6.5 Alum Heade:Double Steel C Beam Single Steel C Beam Seismic Size Requirements Table L2a Table L2b 3,[8 Alum Header Double 3*8 Alum Header Double 2x6.5 Alum Heade,Double Stee] C Beam Single Steel C Beam Post Height (ft)Post Height (ft) Size Size 1 Required 8'9' 10'11'9' 10' 11' 12';Required 8'9' 10' 11' 12' 1 8'9' 10'11'12' Ss Allowed Ss Allowed Wind Nurnber Wind Exposure B Wind E*posure C Wind Number Wind Exposure B Wind Exposure C (cubic feet)(cubic feet] Speed of Posts MAXIMUM TRIBUTARYWID™ ALLOWED Speed of Posts MAXIMUM TRBUTARY WIDTH ALLOWED. -<20%1949 20% 2996 85 mph 2 er 3 1 9' 7' 6'5 4' 6'5' 4'3' 2'85 mph 2 or 3 14' 12' 10' 9'8' 10' 9'7 6' 5 30%1299 30% 1997 4 14' 12' 10' 9 8' 10' 8'7-6-5 4 15 15'150 15 13'15'14'12'10' 9'40%975 40% 1498. 5 ; 15' 15' 14'12 11'14'12'10' 9 7 5.15 15' 15 15'15 15'15 15 15 13'50%891 *50%1370 6 15'15'15 15'14'15 15'13'12'10'6 15 15'15 15'15 15 15 15 15'15' . ·60%743 "60%1141 7 15'15'15 15'15' 15' 15'15'14'13'7 15 15'15 15'15 15*15 15 15'15'70%636 70%978 90 mph 2 or 3 9' T 6'5 40 5 4 3' 3' 20 90 mph 2 or 3 14'12'10'9' 8' 9' T 6' 5' 4'80%650 80%999 4 14 12'10' 9' F 9' 1 6' 5 4' 4 15'15 15 15'13'14'12'10'9' 8'90%578 -*90%888 * 5 15 15'14'12' 11' 12'10' 9'8' 5 5 15'15 15 15 15'15'15'15 13'11'100%520 100%799 6 15 15'150 15'14'15'13'12'10' 9 6 15' 15' 15 15'15' - 15'15' 15' 15' 15' :110%515 110%792 7 19 15'15'15 15' - 15'15'14'13'11'7 15 15'15 15'15 15 15 15 15'15' 120%473 120%726 95 mph 2 or 3 8' 6' 5'4'3' 5' 4'3' 2' 1'95 mph 2 or 3 15 11' 9' 8' T 8' 7' 5' 4' 4'130%480 130%737 4 12'10' 9'8' 6' 8'6' 5 4' 3' 4 150 15'15 13'11'13'11' 90 8' r 140%446 140%685 ** 5 15'14'13'11' 9'11' g'8' ¢ 5' 5 15'15'15'15'15'15 15'13'11'10'150%416 150%639 *** 6 15'15'15 14'13' 14'12'10' 9' 8' 6 15'15 15'15'15' 15' 15'15 15'13' 121 81 7 15'15'15'15'15'15' 15' 13'11'10'7 15 15'15 15'15'15'15'15'15'15 Directions for using Seismic Table Ua or L2b"***' 100 mph 2 or 3 7'5' 4'4' 3' 4' 3' 2' - 2'1' 100 mph 2 or 3 11' 9 8'T 6'T 6'5'4' 3'1. Determine Tributery width 4 11' 9'8'T 6'T 60 4'4' y 4 15'15'13'11'10'11' 9'8' r 6'2. Determine width of structure 5 15 13'11'10' 8'10' 8'7' 6' 5' 5 15'15'15'15 140 15'13'11'10' 9'· 3. Determine height. of structure 6 15'15'14'13'11'12'10' 9'8' 7'6 15'15 15' 15 15 15'15 15'13'1 40 4. Determine number of posts *ucture has 7 15'15'15 15 14'15 13'11'10' 8'7 15'15'15'15' 15 15 15 15'15'14' ·5. Determine Ss foryour area (contact 105 mph 2 or 3 6' 5' 4'5 2' 30 3'2' 1'10 105 mph 2 or 3 . 10'8' T 6' 5 6 5 4'3 2'your local building department)**** 4 10' 8'7' 6 5 6'5' 4'31 7 4 15 14 12'10' 9'10' 8'r 6'5' 6. Choose Table L2a or L2b based orl the header \ 5 13'11'10' E T 8' 7' 6'5' 4'5 15' 15' 15'14'13'14'12'10' 9' 8' 7. Determine the maximum size allowed on the chart 6 15 15'13'11'10'11' 9'8' T 6'6 15 15'15'15 15 15'15 13'12 10'8. Multiply #1, #2 and #3 and divide by #4- 7 15 15'15'14'12'14'12'10' 90 7 7 15 15 15'15 15 15 15 15'14'13'9. If #8 is lower than #7 the structure is OK for seismic DEC 5 2011 110 mph· 2 or 3 5' 4' 3'3' 2'3 20 1' 1' 0' 110 mph 2 or 3 9' r 6'5 4'5' 4'3' 3' 20 1 4 9' 7'6' 5'4' 5 4' 3'3' 2'4 14'12'10' 9'8' 9' 8' 6' 5 4' 5 12'10' 9' T 6' 8' 6'5' 4' 3' 5 15'15'15'13'11'13'11' 9' 8' T 6 15'13'12'10' 9' 10' 8'7' 6'9 6 15'15 15'15 15' 15'14' 12' 10' 9'*no check needed for Patio Covers attached to slab under these conditions 7 15'15' 14' 12'11' - 12'10'9' 8' 6'7 15'15 15' 15 15 15 15 15 13'11'-no check needed for Patio Covers that are 10' tall attached to slab under these cor is 120 mph 2 or 3 4' 3'2' 2' 1'2 2'1' 0'0' 120 mph 2 or 3 7 6'5' 4'3' 4' 3' 3 2'1' -*no check needed for Patio Covers that are 8' tall attached to slab under these coryntiorB 4 T 6' 5' 4'3' 4'3' 2'2' 1'4 12'10' 8'7' 6' 7 6' 50 40 3' -Ss is the Maximum Considered Earthquake Ground Motion (0.2 sec) 5 10' 8'7' 6'5' 60 5 4'3' 2'5 15' 14' 12'10' 9'10'9' T 6' 5' mapped on Figures 1613.5(1),1613.5(3) in the 2009 IBC 6 13'11' 9' 8' T 8'7' 6'5 4'6 15 15 15 14'12'13'11'10'8' 7' *"** Alternatively, divide by these numbers 7 15' 13' 12'10' 9 10' 8'7' 6' 5'7 15' 15 15' 15'15 15'14'12'10' 9'For 2 post Structures divide by 3 130 mph 2 or 3 3' 2' 2'1' 1'2' 1'00 0'0' 130 mph 2 or 3 6'5 4' 3' 2' 5 3' 2' 1' 1' For 3 post Structures divide by 3 4 6' 5 4' 3'2' 3'2' 2'1' 1'4 10' 8' 7 6'56'5 4' 3' 2'For 4 post Structures divide by 4.5 5 8' 7 6' 5' 4 5' 4 3'2' 2'5 13'12'10'8' 7 8: 7 6' 5 4'For 5 post Structures divide by 6 6 11'9' 8' 6' 5' 70 5 4'4' 3'6 15' 15 13' 11' 10' 11' 9 8' T €For all others add 1.5 to number of posts 1 \ 1[2'lli 7 13' 11' 10' 8'7 8'T 6' 5 4' 7 15' 15' 15' 14 12' 14' 12 10' 9' T .„***Not for use in areas with flat roof snow loads exceeds 3¥ psf: \&* 1 i?61 40 UT¢¥1% MEFIETH_S SH®L Tables Ll and LZ need to be checked for surfac, mount concrete attachmenl M5-09 j BUILDING PRODUCTS 2440 Albrighl Houston, TX 77017 (713) 946-998£ ESR 1953 (2009 mc) 1215/2011 Carl Putnam, P. E. 3441 Ivylink Place Lynchburg, VA 24502 Page 98 of 101