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<br />~ <br />. <br />. <br />~ <br /> <br />.D <br />. <br /> <br />~ <br /> <br />~ <br />o <br /> <br />~ <br />~ <br />~ <br />o <br />m <br /> <br />. <br />> <br />o <br />.D <br />'" <br /> <br />'" <br />C <br />'0 <br />. <br />o <br />--' <br /> <br />L <br />. <br />~ <br />. <br />:> <br /> <br />~ <br />o <br />.c <br />~ <br />"- <br />. <br />o <br /> <br />10'1 <br /> <br />--.- <br /> <br />- <br /> <br />t<tlNfUKU:.D CONCRETE sr~:.L~IR{~?LAt~ <br /> <br />12-foot Span (24-foot Hous.e DeDth) <br />#4 Mild Steel Reinforcing Bars <br /> <br />6 <br /> <br />Ma In Steel, <br />See Curves (f~ <br />'e.. __'_ '- ~_ ~~ <br />_ __~~>r:Ll? "~,-:J ~, ~'"i" t <br />IfI~ at 41 - - \- ~..~ ..". " <, '- :t- <br />(min. of 4 per ' UndraIned System <br />ha 1 f house <br />depth) <br /> <br /> <br />5 <br /> <br />Span Direction <br />DESIGN ASSUMPT[.Q~_ <br />Ultimate Strength Design <br />t slab thickness <br />f~ 2500 psi <br />fy 40,000 psi <br />o 0.90 <br />Load Factor 1.4 <br />Cover 3/4" <br /> <br />4 <br /> <br />( <br /> <br />3 <br /> <br />, <br />"" 01, <br />->'1"".---------- <br />$" ~l <br />..... <br /> <br /> <br />--- .- <br /> <br />2 <br /> <br />o <br /> <br />5 <br /> <br />I, <br /> <br />20 <br /> <br />30 <br /> <br />25 <br /> <br />15 <br /> <br />Bar Spacin9 (inches) for MaTn Steel <br /> <br />Figure 11.14 Slab reinforcement design, #4 steel reinforcing bars. 12 foot span. (Reference <br />26), <br /> <br />fiE INrORCEO CONCRETE STRUCTURAL SU,B <br /> <br />12-foot Spall (24-foot Hause Depth) <br />16 Mild Steel Reinforcing Bar~ <br /> <br />H.lnSteel, <br />See Curves Cover <br />EO -' ,::"'.-\~ <br />,-:..' '-,' .---~. , <br />\-c--o--'....~ <br />_~nd,.~~.,.stem '4 at 4' (min. of ~ <br />Span DIrectiOn per half house depth) <br /> <br />. <br />. <br /> <br />6 <br /> <br /> <br />~ <br />. <br />~ <br />"0 <br /> <br />5 <br /> <br />g <br />o <br />~ <br />. <br />> <br />o <br />~ <br />< <br />~ <br />c <br /> <br />. DESIO ASSUMP IONS <br />Ultllllate Strength Design <br />'+ t .. slab thlele,hen <br />f~ .. 2500 psi . <br />fy" 40,000 psi <br />II .. 0.90 <br />load Factor" 1.4 <br />) ~Cover"3/q" <br /> <br />'-. $" <br />,-----, <br /> <br />] <br /> <br />.....,'.. <br />..... <br /> <br />. <br />~ <br />,; <br />"0 <br />;0 <br />o <br />. <br />c <br /> <br />o <br /> <br />5 <br /> <br />10 <br /> <br />15 <br /> <br />20 25 <br /> <br />30 <br /> <br />Bar Spacing (inche5) "or MaIn Steel <br /> <br />Figure 11.15 Slab reinforcement design, #6 steel reinforcing bars, 12 foot span. (Reference <br />26). <br />