Research On Bearing Capacity Of Normal Cross Section And Axial Compression Ratio Of SRC Special-shaped Columns

According to the action behavior of steel reinforced concrete(SRC) special-shaped columns and finite element calculation principle, the author compile the finite element programs for the bearing capacity of normal cross of SRC special-shaped. The program is proved right and feasible by the comparison of the existing experimental data. With the program ,considering the change of several factors , including concrete strength rate, loading angle, steel ratio, axial compression ratio and so on ,we can calculate N ? Minteraction curves and M x ? My interaction curves of SRC special-shaped columns. Through analysis in detail for the program results , the author summarize these influent rules of the loading performance of normal cross section for the SRC special-shaped when the kinds of foctors changed.The axial compression ratio of SRC special-shaped columns is calculated by the method which is based on the definition of balanced failure between tension failure and compression failure and the accumulative method. Through the analysis of the calculation results ,the axial compression ratio of SRC special-shaped columns is shortage by the method which is based on the definition of balanced failure between tension failure and compression failure, but to十cross-section,the calculation results are reliable. Using the accumulative method, the calculation results are more reasonable and credible. Based on the theory analyses, the axial compression ratio of steel reinforced concrete special-shaped columns is given in the end, these data may be reference for the structure design.