Kinematic bending moments in pile foundations

In this paper the kinematic seismic interaction of single piles embedded in soil deposits is evaluated by focusing the attention on the bending moments induced by the transient motion. The analysis is performed by modeling the pile like an Euler–Bernoulli beam embedded in a layered Winkler-type medi...

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Bibliographic Details
Published in:Soil dynamics and earthquake engineering (1984) 2010-03, Vol.30 (3), p.119-132
Main Authors: Dezi, F., Carbonari, S., Leoni, G.
Format: Article
Language:English
Subjects:
Dynamics
Earth sciences
Earth, ocean, space
Earthquakes, seismology
Engineering and environment geology. Geothermics
Engineering geology
Exact sciences and technology
Internal geophysics
Kinematic interaction
Natural hazards: prediction, damages, etc
Pile foundations
Piles
Soil–structure interaction
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Summary:In this paper the kinematic seismic interaction of single piles embedded in soil deposits is evaluated by focusing the attention on the bending moments induced by the transient motion. The analysis is performed by modeling the pile like an Euler–Bernoulli beam embedded in a layered Winkler-type medium. The excitation motion is obtained by means of a one-D propagation analysis. A comprehensive parametric analysis is carried out by varying the main parameters governing the dynamic response of piles like the soil properties, the bedrock location, the diameter and embedment in the bedrock of piles. On the basis of the parametric analysis, a new design formula for predicting the kinematic bending moments for both the cross-sections at the deposit–bedrock interface and at the pile head is proposed.
ISSN:0267-7261
1879-341X
DOI:10.1016/j.soildyn.2009.10.001