State of the art report on steel-concrete composite columns

Steel-concrete composite columns are used extensively in modem buildings. Extensive research on composite columns in which structural steel section are encased in concrete have been carried out. In-filled composite columns, however have received limited attention compared to encased columns. In this paper, a review of the research carried out on composite columns is given with emphasis on experimental and analytical work. Experimental data has been collected and compiled in a comprehensive format listing parameters involved in the study. The review also includes research work that has been carried out to date accounting for the effects of local buckling, bond strength, seismic loading, confinement of concrete and secondary stresses on the behaviour of steel-concrete composite columns. (C) 2001 Elsevier Science Ltd. All rights reserved.