Performance-based design factors for pile foundations.

Details

• Creators:
  Kramer, Steven L. ; Valdez, Carlos ; Blanchette, Benjamin ; Baker, Jack W.
• Corporate Creators:
  Pacific Earthquake Engineering Research Center. PEER report
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Earthquake resistant design
  • Computer aided design
  • Earthquake resistant structures
  • Seismicity
  • Structural engineering
  • Pile foundations
  • Bridge design
  • Bridge foundations
• Publication/ Report Number:
  WA-RD 827.1
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  Washington (State). Dept. of Transportation. Office of Research and Library Services
• Abstract:
  The seismic design of pile foundations is currently performed in a relatively simple, deterministic manner. This ; report describes the development of a performance-based framework to create seismic designs of pile group ; foundations that consider all potential levels of loading and their likelihoods of occurrence in a particular area. ; Because of the multitude of factors that can exist at a site, development of a complete, integrated procedure ; that would extend from ground motions to limit state exceedance was not practical. To make the problem more ; useful to the research sponsors, a modular approach was developed. The framework allows for the development and ; use of a structural model with a simplified representation of the foundation system. The discrete soil model was ; developed using an equivalent linear format so that stiffness and damping characteristics were consistent with ; deformation levels. The foundation loads computed in these analyses were then applied to a three-dimensional soil-pile group model to compute the resulting displacements and rotations of the pile cap. ; A computer program was developed to perform the calculations required to develop load and resistance ; factors and demand and capacity factors. The calculations allow a designer to select a return period for limit state ; exceedance and then select the corresponding factors that will produce a design that corresponds to the desired limit ; state exceedance rate.
  More +
• Format:
  PDF
• Funding:
  T4118-66
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/28535/dot_28535_DS1.pdf
• File Type:
  [PDF - 4.90 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:4d2fee92765f4ad90c756e76ff1ca962e7f5164c9435c1ceb58824af0cdaceea