EXPERIMENTAL STUDY OF LONG REINFORCED CONCRETE-FILLED GFRP TUBES COLUMNS SUBJECTED TO ECCENTRIC LOAD

Abstract

Abstract: Fifteen long reinforced concrete-filled GFRP tubes columns and one RC column were tested under eccentric load to investigate the mechanical properties of reinforced concrete-filled GFRP tubes column. The failure shape and mechanical properties are studied, and factors such as concrete strength, ratio of length to diameter and eccentricity that affected mechanical properties of the columns are analyzed. Test results indicate that bearing capacity and ductility of the columns are enhanced effectively as a results of the confinement of GFRP tube. Bearing capacity and stiffness of the columns increase with elevation of concrete strength. The confinement of GFRP tube and the bearing capacity of the columns drop with the increasing of ratio of length to diameter and eccentricity. Plane-section assumption is applicable to calculation of long reinforced concrete-filled GFRP tubes columns subjected to eccentric load.

Key words: reinforced concrete-filled GFRP tubes, column, eccentric compression, bearing capacity, ductility, lateral deflation

CLC Number:

TB332

WANG Bao-li, XIN Geng-hua, WANG Qing-xiang. EXPERIMENTAL STUDY OF LONG REINFORCED CONCRETE-FILLED GFRP TUBES COLUMNS SUBJECTED TO ECCENTRIC LOAD[J]. COMPOSITES SCIENCE AND ENGINEERING, 2015, 0(2): 21-27.

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