TESTS ON INCLINED CONCRETE-FILLED STEEL TUBULAR STUB COLUMNS WITH CIRCULAR AND RECTANGULAR SECTIONS

Tests on six inclined concrete-filled steel tubular stub columns with circular sections and ten inclined concrete-filled steel tubular stub columns with rectangular sections subjected to longitudinal loading were carried out to study the influence of different angle of inclination on the compressive mechanical properties, and a simplified formula is suggested for calculating the member capacity. The test results show that the compressive strength and the stiffness both decrease with the increase of the angle of inclination. Generally, the formula can reasonably evaluate the ultimate bearing capacity of inclined concrete-filled steel tubular stub columns, and the calculated results show good agreements with the experimental results.