Alternate Load Test of the Concrete Encased Steel Column Under Axial Compressive Force and Bending Moment


Osamu KAWAI, Kiyomitsu MURATA, Masanori KINOSHITA, Masahiro TERADA
A lot of alternate load tests with the test pieces reflecting the real structures have been performed mainly in the architectural research field in order to examine the safety at the earthquake of concrete encased steel columns. As its application to the civil engineering works increased, the experimental research with the test pieces imitating the real structures has come to be carried out. However, the research focusing on the ductility is still few. On the other hand, the loading condition and material parameters of concrete encased steel columns adopted as railway structures are different from the ones of building constructions. Then, the alternate load test under the constant axial compressive force and bending moment was performed by using the test pieces taken into consideration the parameters of railway structures. This paper describes the loading capacity and ductility of concrete encased steel columns.