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7.0 CONCRETE FOOTING OPTIONS <br />EQUIVALENT FOOTINGS FOR <br />FREESTAND AND ATTACHED <br />1 DIAMETER OF <br />0 0 <br />CIRCULARlUZ £2 FOOTINGS (IN) <br />* g Mg 120' 18" 24" 36" <br />8 9 2 2 DEPTH OF CIRCULAR <br />O- O ,FOOTINGS (IN) <br />Z <br />14"17"24 14"14'°14" <br />15"18"30"15 15"15" <br />16"19" 36"16"16"16" <br />17"21"43"19"1T'1r <br />18" 22 52"23"18"18" <br />19" 23"61"2r 19"19 <br />20"24"n/a 31 20"20" <br />21"26"n/a 35"21"21" <br />22" 27"rda 47 24"22" <br />23"28" Wa 48"27 23" <br />24" 30" nia 54"31"24" <br />25 31"nia 61"35"25' <br />26" 32"r¥a 69"39 26 <br />27" 34"nia 77"44" 27" <br />28" 35"Wa 86"49 28" <br />29" 36" Wa nla 54"29" <br />CONVERSION TO SQUARE TOP FOOHNG <br />For Single Span Attached <br />Footings Only <br />Footing Depth <br />18-24"30"36" <br />d (in) Required Side of Square Footing <br />20"21 18"16"15" <br />21*23"20"18 16" <br />22.24"21" 19" 17" <br />23"26"23 20"18" <br />24"28"24"21"20" <br />25"29 26"23.21" <br />26"31"27.24-22" <br />27'33"29 26.23" <br />28"35.30='It.25" <br />29"37 32 29 26" <br />30"39" 34 30"27" <br />31"41"35.32"29" <br />32'43"37 33"30" <br />33"45"35"32" <br />34"4-r 40"36"33" <br />35"49"42"38"35" <br />36"51"A A.3W 36" <br />3T'53.46"41"38" <br />38"55" 48.43"39" <br />39"57"50.44"41" <br />40"60"52"46"42" <br />41"N/A 54"45'44" <br />SITE SPECIFIC FOOTFNG TABLE <br />for SINGLE SPAN Attached Structures <br />Wind Condition Lattice <br />Trib 90 mph 90 mph 110 mph Trib 0,8,000 Fck,®9>a«mnce /#### #///# <br />Area Exp B Exp C Exp C Ana 000/0/0080080#8&008 <br />(sq ft) Requin#d 'd" of Footing (in) (sq m <br />15 15'17"20" 25 <br />20 17"19"21" 33 Panel Span 1/2 OF PANEL SPAN <br />25 · 18" 20" 23"42 · ¤ --*.0,.-----1 ..=. - <br />-I.... <br />30 19"21"25" 50 • a <br />35 20" 23"26" 58 Comer Trib Area | ,:r | 1/2 OF PANEL SPAN <br />40 21"24"27" 67 1 i <br />45 22"25"28" 75 1 1 <br />50 230'25"29" 83 - *ic -11 9 <br />55 23"26"30" 92 1 Post Spacing <br />60 24"27"31"100 1 1W M <br />65 25"28"32"108 Figure 1 <br />70 25"28"33"117 Determine Trib Area from Figure 1 <br />80 25"30 34 133 <br />90 27°31"35"150 INSTRUCTIONS TO USE TABLE 7.10 <br />100 28 32'3T'167 1. TABLE B FOR SINGLE SPAN ATTACHED UNITS ONLY <br />110 29"33"38"183 2. DETERMINE ACTUAL TRIBUTARY AREA <br />120 30"34"39"200 FOR MIDDLE POSTS THIS IS: <br />130 31"35"40"217 TRIB WIDTH x POST SPACING <br />140 32"36 41"233 FOR END POSTS THIS IS: <br />150 33"37"42"250 (OVERHANG+ HALF OF POST SPACING) x TRIB WIDTH <br />160 33"37"43"267 3. DETERMINE FOOTING SIZE FOR WIND COND#TION <br />170 34"38"44" 283 4. FOR LATTICE USE LAST COLUMN FOR TRIB AREA <br />Aa I <br />Panel <br />t,Ovemang <br />30" 38"nia n/a 60"30"42"N/A 56"50"45"180 35"39"45"300 <br />31"39"nja Wa Se 31"43"N/A 58"51" 47 <br />32" 40"nia rda 72"32'44"N/A 60"53"49 <br />33" 42"n/a rda 79"35"45"N/A NA 55'50 <br />14- 43' nla rda 87" 39 46.NA N/A 57"52 <br />35" 44"nia Wa 95" 426 4T'N/A N/A 59"54 <br />16" 46"nia rda 103" 46"48"N/A WA N/A 55"240 38.43"49 400 2440 Albright <br />;7" 47"Wa rda 112"50.49"N/A NA N/A 57"TABLE 7.10 Houston, TX 77017 <br />18" 48" Wa nia n/a 54'50"N/A N/A NA 59"(713) 946-9000 <br />19" 50.nia rVa Wa 58"TABLE 7.9 <br />lo" 51" Wa rda n/a 63"Carl Putnam, P. E. <br />·1" 53" Wa n/a rda 68" 3441 ivylink Place <br />2" 54" Wa rda n/a 73" Lynchburg, VA 24503 <br />3" 55"Wa nia Wa 78" <br />4" 57"Wa rda n/a 84" TABLE 7.8 <br />190 35"40"45"317 <br />200 40"46"333 <br />210 41 47" 350 -m-FIRLS US K <br />220 3-r 42 48"357 <br />230 38"42 48 383 UILDiNG PRODUCTS <br />C 39 <br />* EXP.15 * <br />DEC 5 2011 OF 0 <br />U 1.20 <br />M+2009 <br />h?ivern <br />ICC ESR 1953 (2009 IE© 1215£2011 <br />Page 97 of 101