Comparative study on the required tension reinforcement for singly reinforced concrete rectangular beams according to different codes

Abstract EN

This paper aims to compare the required, maximum and minimum tension reinforcement of singly reinforced concrete (RC) rectangular beams according to three common Codes.

These adopted Codes are the ACI 318M-11, BS 8110-1 : 1997 and IRAQI Code 1 / 1987.

The results of analysis and design of (36) various beams cases indicate that the BS Code and the IRAQI Code have given an increase in the required area of tension reinforcement to about (15 %) and (30 %) respectively with respect to the ACI Code.

It is clearly shown that adopted ACI Code gives the minimum required area of tension reinforcement in the same beam, which leads to good economy and satisfy the ductility provisions in order to prevent sudden and brittle collapse of members subject to flexural.

Finally it is recommended to adopt the provisions of ACI Code to obtain the required area of tension reinforcement in members subjected to flexure in the next edition of IRAQI Code.