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Sharing of lateral loads and moments in pile foundations (copia 1)

By: M. Lenzi, A. Gambi, G. Olivucci

In the paper a criterion for the evaluation of the sharing of the lateral loads in a piled foundation is presented. It relies on the the compatibility condition between the rotation of the rigid pile cap and the rotations of the pile heads, following in that the criterion suggested by the Eurocode 8 – Part 5. This assumption leads to an analytical solutions which allows to deal with the sharing of the lateral loads and moments by means of two main interaction parameters only. A sharing domain is also derived that shows the role played by the eccentricity of the lateral load on the values of the axial forces and of the bending moments at the head of the piles.