Journal:Journal of Constructional Steel Research

Abstract:This paper dealswith an experimental investigation on the shear behaviour of concrete-filled steel tubular (CFST) members. A total of 38 specimens with either circular or square cross-sections were tested. Among these specimens, four were subjected to shear and the rest were subjected to combined axial compression and shear. The main parameters considered were the axial compression ratio (n=0–0.75), shear span-to-depth ratio (m=0.075–0.75), concrete strength (fcu=31.9 or 57.4 MPa), steel ratio (αs=0.070 or 0.108) and steel yield stress (fy=338.3 or 415.7MPa). The test results showed that, all the CFST specimens exhibited ductile characteristics. The influences of the parameters on the failure mode, load vs. deformation relationships, shear capacity, and strain development of the tested specimenswere investigated. Finally, an existing simplifiedmodel for predicting the shear capacity of CFST members under combined compression and shear was also assessed.

Indexed by:Journal paper

Page Number:2016,122:226-237

Translation or Not:no

Included Journals:SCI

First Author:叶勇

Co-author:Zhong Tao,郭淑丽

Correspondence Author:韩林海