The Design of Biased Concrete Member Based on Newton-Raphson Method
In the design of traditional concrete compres-sion members,a cubic equation with one unknown will be generated when the equilibrium equation of the section force of the member is listed.The simplified calculation method in the code is usually used to calculate the height of the relative compressive zone.This method simplifies the section force equilibrium equation of the compression member,so that the engineer can solve the equilibrium equation by manual calculation to obtain the corresponding height of the concrete relative compressive zone and the reinforcement quantity of the compression steel bar.With the development of the times,computer calculation has gradually replaced the manual calculation method and be-come the main analysis method of structural engineering.In the field of program algorithm,the exact solution can also be obtained through the improvement of program al-gorithm from the approximate solution and empirical solu-tion of traditional manual calculation.Therefore,this paper introduces the application of Newton-Raphson method in the calculation of concrete eccentric compression members for reference.
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