htex404040
Structural
- May 10, 2007
- 7
Hello all,
I'm looking for a clarification on the minimum reinforcement ratios for tied columns. I know ACI-05 10.9.1 states that the Ast for concomposite compression members shall be not less than 0.01Ag, then in the commentary I see it talks about the report of ACI committee 105 and a minimum reinforcement ratio of 0.005 was recomended for tied columns, then the next sentance says in all editions of the code since 1936 the minimum ratio has been 0.01.
Many of my co-workers say minimum area of steel for these members is 1/2 of 1% (0.005), but I'm just trying to find where in the code it states this and the above section is the only place I've seen this referanced, and from the wording of it it looks to me like the minimum is 0.01.
Any input would be appreciated!
Thanks.
I'm looking for a clarification on the minimum reinforcement ratios for tied columns. I know ACI-05 10.9.1 states that the Ast for concomposite compression members shall be not less than 0.01Ag, then in the commentary I see it talks about the report of ACI committee 105 and a minimum reinforcement ratio of 0.005 was recomended for tied columns, then the next sentance says in all editions of the code since 1936 the minimum ratio has been 0.01.
Many of my co-workers say minimum area of steel for these members is 1/2 of 1% (0.005), but I'm just trying to find where in the code it states this and the above section is the only place I've seen this referanced, and from the wording of it it looks to me like the minimum is 0.01.
Any input would be appreciated!
Thanks.