Analysis of frame systems of inelastic composite elements

We solved the problem of the deformation calculation for inelastic, plain, and statistically indeterminate frame systems. The systems consist of composite bars with variable transverse cross-section and variable stiffness of shear ties along the length.The solutions are based on A. R. Rzhanitsin’s theory of composite rods. The deformation method and the expression for the determination of the equivalent modulus, earlier received by the author, were used.