Based on derive beam-column element model of reinforced concrete,reinforced concrete structures are analized to take into account the effect of the number of Gauss point on the nonlinear analysis results when finite element stiffness is integrated.The difference between two concrete - relations are compared with nonlinear analysis of cross -section.The two relations are suggested by the current code for design of concrete structures,one is used for calculation of bearing capacity under bending and compression, the other is used for nonlinear analysis of concrete structures.The analytic results are compared with experimental data and suggestions on suitable Gauss integration points are given for reinforced concrete beam -colimn element.
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