Abstract: The presented paper gives a comparison in the design of reinforced concrete beams between the Chinese code GB 50010, the European code Eurocode 2 and the American code ACI 318. From a concrete structure composed of a slab and several beams, the design of rebars of reinforced concrete beams is made according to the three design codes. The comparison is based on the calculations of the ratios between the different values of areas of reinforcement. In this research, we determine which code is the most conservative by using the same value for the steel yield strength. In flexure design, the results of rebar areas are approximately similar. It appears Eurocode 2 is the most conservative code. The codes are mainly equivalent and the differences between the codes are about 10% or 20%. In shear design, we observe more discrepancies than in flexure design but the stirrups ratios of two compared codes stay in a range globally between 1 and 2. ACI 318 is, in most cases, the most conservative code. Then with all the calculated ratios, a relation is given between the codes by the utilization of trend-lines which describe the distribution of all the calculated data. This paper is presented as follows. First, we deal with the presentation of the project and the calculation method. Then, we show the results of the comparison. Finally, a proposal on a common, international design code is given.
Keywords: comparison, design code, flexure, shear, reinforced concrete beams.
Title: Comparison on Code Methods for Flexure and Shear Design of Reinforced Concrete Beams and Proposal for a Common Design Code
Author: Benjamin Abensour, Xiaozu Su
International Journal of Civil and Structural Engineering Research
ISSN 2348-7607 (Online)
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