Abstract
In this paper, it was investigated that how the friction or cohesion on the interface between pile and footing effects on the stress distribution in the connection between pile-head and footing. The connection was idealized as an axisymmetric body subjected to non-axisymmetric loading, and semi-analytical procedure with Fourier representation was adopted. For modeling the debonding or slip on the interface, an axisymmetric joint element was adopted. The results of the investigations suggest that the friction and cohesion on the interface are significant factors for preventing from stress concentration at bottom of footing or at pile-top in the connection, and the combined effects of pilehead loadings on the stress distribution in the connection should be considered in the safety check formulas.
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