Resistance of Concrete Slender Columns

The paper presents a calculation of slender concrete column resistance with a non-linear analysis which takes into account a contribution of second order theory, non-linear distribution of concrete stresses in cross-section and cracking. The Transfer Matrix Method was used as a step by step method for calculation of nodal forces and deformation vectors and modified rigidities of reinforced concrete segments. Also Newton method for searching equivalence of normal forces and bending moments on each step of calculation and central cross-section of column segment is explained in details. Theoretical results are compared with another non-linear software and realized experiment.