The proposed approach can be applied to analyzing the stress–strain state and bearing capacity of pipe-concrete columns of arbitrary cross-sections. It has been established that the effective area of operation of circular-section columns are small eccentricities of the longitudinal force. The technique was tested by comparing the solution with the calculation in a three-dimensional formulation in the LIRA-SAPR software package and with the experimental data of A.L. The equations of Geniev’s concrete theory of plasticity are used as relations establishing the relationship between stresses and strains. The article proposes the finite element analysis method of concrete-filled steel tubular columns in a physically nonlinear formulation by reducing a three-dimensional problem to a two-dimensional one based on the hypothesis of plane sections. However, currently, there is no generally accepted effective calculation method considering both nonlinearities of the materials and lateral compression. Concrete-filled steel tubular (CFST) columns are widely used in construction due to effective resistance to compression and bending joint action.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |