Reinforced Concrete Hinge Pillar Frame Columns With Second-order Effect

Reinforced concrete frame is widly used in the engineering construction today. The intention and stabilization problem of eccentricity member get hold of the attention all the time. The second-order effects of column emphasize the connection between axis load and distortion add-ons internal force and add-ons distortion,second-order effects analysis should consider from whole.The paper studies the second-order effects and stability problem of the reinforced concrete hinged column and frame column. Discuss the study status and the problem existent of reinforced concrete column. Research the hinged column from same end moments and different end moments. Research the frame column from no sway frame column and sway frame column.The paper use model of variety of stiffness divided into five parts,and consider into all sorts of factors. Workout a program which writed by Power Fortran to study the nonlinear analysis of reinforced concrete frame. Calculate a example;analyze the questions of approximate magnifier in two conditions;modify the modulus Cm;discuss the factors which effectsecond-order effects and the carrying capacity;modify the modulus weaken stiffness of reinforced concrete frame.