An incremental model and calculation of reinforced conctrete wall beams with cracks
An incremental model and calculation method of reinforced concrete wall beams taking into account of crack formation and other factors of nonlinearity based on a low-iterative solution of physically nonlinear problems are taken into consideration. Derivation of the formulas for the stiffness matrix of a finite element with cracks under plane stress state by connecting the finite increment of stress with finite strain increment is given. As an example the finite element analysis of stress-strain state of the experimental deep beam is done by NIIMosstroy.