The Numerical Study on Load-Transferring Model for SFRC Double-Column Combined Six-Pile Caps
For discussing the mechanism of load-transferring for reinforced steel fiber reinforced concrete (SFRC) double-column combined six-pile caps, the large-scale general finite element software-ABAQUS is used for the tested SFRC caps with computing in the aspects of modeling, cracking load, limit load, load-deformation curve, distribution of stress in caps and cracks and etc. The results of computing is compared with the result of experiments and the comparison is indicated: The results of computing and experiments are coincided well; The destroy pattern of SFRC double-column combined six-pile caps is sheared damage or punched damage and the model of load-transferring accords with spatial strut-and-tie method (STM); The mixture of steel fiber can improve cracking load and limit load for RC caps, delay the crack for caps, block the cracks’ expansion, and enhance the cap’s ductility.
Jingsi Huo, Yan Xiao, Zongjin Li and Shuaib Ahmad
Y. Y. Zhang et al., "The Numerical Study on Load-Transferring Model for SFRC Double-Column Combined Six-Pile Caps", Key Engineering Materials, Vols. 400-402, pp. 321-327, 2009