Effect of crumb rubber on compressive behaviour of CRCFST stub columns

Dawei Liu, Jiongfeng Liang, Guangwu Zhang and Jianbao Wang

Abstract

This paper investigates the effect of crumb rubber (CR) on compressive behaviour of crumb rubber concrete filled steel tube (CRCFST) stub columns. Therefore, experiments on 16 stub columns subjected to axial loading are carried out. The results show that the failure modes of CRCFST stub columns with different CR replacement ratios and CR size are similar, manifested the buckling of the outer steel tube. The axial bearing capacity and stiffness both decrease with an increase in CR replacement ratio, and with decreasing CR size.

Key Words

crumb rubber; concrete; axial; compressive behavior; stub columns

Address

Dawei Liu, Jiongfeng Liang: Jiangxi Engineering Research Center of Process and Equipment for New Energy, East China University of Technology, Nanchang, P.R. China; Faculty of Civil and Architecture Engineering, East China University of Technology, Nanchang, P.R. China Guangwu Zhang, Jianbao Wang: Faculty of Civil and Architecture Engineering, East China University of Technology, Nanchang, P.R. China

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