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Showing results for tags 'maximum steel ratio'.
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Assalaam o Alliakum Everyone, I know max percentage of steel in column is 4%. But I would like to ask that would you decrease the cross section of your column (considering rebar area doesn't change much) to the extent that it reaches 4%? We know that decreasing the cross section would cause an increase in steel percentage (e.g. 1in^2 Ast in 10"x10" column means 1% steel, but 1in^2 Ast in 8"x8" column means 1.5625% steel). Moreover, in my case the increase in steel is only required to satisfy 6/5 beam/column capacity ratio present in 1st story all columns are passing for flexure. Would you decrease cross section to the extent that steel % is 4% in a column or not? I know you are allowed to increase steel % up to 4% but if the site is in Pakistan then you have to consider steel congestion and workmanship. To which max threshold we generally increase steel %, 2%, 3% or 4%?
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Assalam o alaikum, Can any one tell me what is maximum limit of positive and negative steel ratios in slabs and footings? ACI code is giving me minimum limit in terms of percentage of gross area i.e. 0.002.b.h or 0.0018.b.h. but it reports maximum allowed reinforcement in terms of net tensile strain in tension reinforcement. Kindly explain what value it means in terms of gross area for maximum allowed steel ratio to avoid over-stressing of slabs and footings?
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