Actes du colloque - Volume 2 - page 579

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Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering, Paris 2013
Figure 8 Maximum moments of piles varying pile diameter and PGAt
Figure 9 Monograph design procedures proposed for mega project
4. CONCLUDING REMARKS
Seismic performances of the piles on numerical models were
studied in this paper using probability analysis and solutions
from discrete wave equations. For the assessments on existing
pile foundations and/or a new design case, rational procedure is
suggested based on the regular design. The maximum bending
moments of the piles occurred during the quakes can be
compared to the moment capacities in order to validate the
design. The pile displacements associated with the moment
capacities can be treated as the allowable displacements. If a
preliminary design investigation is desired, the engineers can
establish a series of monographs beforehand for piles with
required length. The pile diameter, the area ratio of steer bar
and the axial loads are the variables. The possible influences of
these design variables on both axial and lateral load capacities
and the moment capacities of the pile can be found, and the
monographs showing their influences can be later on used to
pick up the pile diameter. Such monographs can be simply
used to fulfill the design with concerns on seismic performance
and load capacities of the piles.
5. REFERENCES
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0 10000 20000 30000
Mobilized MMax (kN-m)
0.0
0.5
1.0
1.5
2.0
Diameter of Pile (m)
L=60m
0.12g
0.29g
0.51g