Behavior of slender steel concrete composite columns in eccentric loading

• Published in: Journal of Shanghai University Vol. 13; no. 6; pp. 481 - 488
• Main Author: 赵根田 张孟喜 李永和
• Format: Journal Article
• Language: English
• Published: Heidelberg Shanghai University Press 01.12.2009; School of Architecture and Civil Engineering, Inner Mongolia University of Science and Technology, Baotou 014010, Inner Mongolia, P. R. China%Department of Civil Engineering, Shanghai University, Shanghai 200072, P. R. China
• Subjects: Applied Mathematics and Mechanics; Classical Mechanics; Engineering; Environment; Life Sciences; Materials Science; Mathematical and Computational Engineering; Mechatronics; 混凝土强度; 负载条件; 载荷偏心; 非线性数值方法; composite column; 74K10; steel concrete; nonlinear analysis; behavior
• ISSN: 1007-6417; 1863-236X
• DOI: 10.1007/s11741-009-0611-2

Ten slender steel reinforced cencrete （SRC） composite columns are tested under eccentric loading conditions. Effects of concrete strength, slenderness of columns and eccentricity of the axial load are studied. The load-carrying capacity is reduced with increased slenderness ratio and eccentricity. Concrete strength has no obvious influence on eccentrically loaded columns. Then, a nonlinear numerical method of pin-ended slender columns is also presented. This method is applicable for determining the material failure load or buckling failure load of a slender steel reinforced concrete composite column. In this method both material and geometric nonlinearities are taken into account. The results of numerical analysis accord well with the test results. The test results are also compared with the results predicted by ACI318-05 and the China Specifications.