Performance-based interaction domains for pile groups
Performance-based interaction domains for pile groups
In many engineering problems the design of piles is ruled by a threshold acceptable value of absolute and differential settlements as well as rotations under working loads. To verify that settlements and rotations of a piled foundation, under some combined axial load-moment action, do not exceed acceptable values, the construction of ‘performance-based’ interaction domain would be a useful design tool. To this end, the response of pile groups subjected to combined actions including vertical load, Q, and moment components along x and y axes, Mx and My, is first investigated by means of a simple ad-hoc numerical code, fixing the settlement and/or rotation to a given threshold value. Closed-form expressions for the performance-based interaction domains in the Q-Mx-My space are then obtained by matching the numerical results. Due to the limited number of parameters involved, which are already required in routine design, the proposed domains can be easily employed for the design of pile groups.
R. Cesaro; Raffaele Di Laora; C. Iodice; Alessandro Mandolini
18th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE2024)
A - New developments on structural design
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