Pieu sous charge latérale : Développement de lois de dégradation pour prendre en compte l’effet des cycles

Formerly, the design of piles under lateral cyclic loads assumed that the soil is completely in the state of failure (limit states calculation). However, the calculation methods progressed and the design can now be done in displacement but without being able to take into account cyclic loads (except for offshore piles). To analyse the cyclic effects two methods have been developed. The global method is based on pile head displacements and maximum bending moments and the local method is based on P-y curves. For the global method, an empirical law is proposed to evaluate the pile head displacements under cyclic loads from the displacement calculated under a monotonic load. For the local method based on the P-y curves, a reduction coefficient (p-multiplier) is given and must be applied to the monotonic P-y curves to take the cyclic effect into account.

• Authors:
  • ROSQUOET, Frédéric
  • THOREL, Luc
  • GARNIER, Jacques
  • CHENAF, Nawel
• Conference:
  • 18th International Conference on Soil Mechanics and Geotechnical Engineering
  • Location: PARIS
  • Date: 2013-0-0
• Publication Date: 2013

Language

• French

Media Info

• Media Type: Digital/other
• Pagination: pp.2395-2398

Subject/Index Terms

• TRT Terms: Soil mechanics
• ITRD Terms: 5755: Mecanique des sols
• Subject Areas: Geotechnology;

Filing Info

• Accession Number: 01537649
• Record Type: Publication
• Source Agency: Institut Francais des Sciences et Technologies des Transports, de l'Amenagement et des Reseaux (IFSTTAR)
• Contract Numbers: RPW0F07101, SOLCYP
• Files: ITRD
• Created Date: Sep 16 2014 11:25AM