Development of load and resistance factor design for ultimate and serviceability limit states of transportation structure foundations.

Details

• Creators:
  Salgado, Rodrigo ; Woo, San Inn ; Kim, Dongwook
• Corporate Creators:
  Joint Transportation Research Program (Ind.)
• Corporate Contributors:
  United States. Federal Highway Administration ; Indiana Department of Transportation
• Subject/TRT Terms:
  And Resistance Factor Design Bridge Foundations Bridge Piers Foundations Load Loads LRFD Pile Design Pile Resistance Piles Piles (Supports) Piling Serviceability

  More +
• Publication/ Report Number:
  FHWA/IN/JTRP-2011/03 ; DOI: 10.5703/1288284314618
• Resource Type:
  Tech Report
• Geographical Coverage:
  Indiana
• Corporate Publisher:
  Indiana Department of Transportation
• Abstract:
  "Most foundation solutions for transportation structures rely on deep foundations, often on pile foundations
  
  configured in a way most suitable to the problem at hand. Design of pile foundation solutions can best be pursued by clearly
  
  defining limit states and then configuring the piles in such a way as to prevent the attainment of these limit states. The
  
  present report develops methods for load and resistance factor design (LRFD) of piles, both nondisplacement and
  
  displacement piles, in sand and clay. With the exception of the method for design of displacement piles in sand, all the
  
  methods are based on rigorous theoretical mechanics solutions of the pile loading problem. In all cases, the uncertainty of
  
  the variables appearing in the problem and of the relationships linking these variables to the resistance calculated using these
  
  relationships are carefully assessed. Monte Carlo simulations using these relationships and the associated variabilities allow
  
  simulation of resistance minus load distributions and therefore probability of failure. The mean (or nominal) values of the
  
  variables can be adjusted so that the probability of failure can be made to match a target probability of failure. Since an
  
  infinite number of combinations of these means can be made to lead to the same target probability of failure, we have
  
  developed a way to determine the most likely ultimate limit state for a given probability of failure. Once the most likely
  
  ultimate limit state is determined, the values of loads and resistances for this limit state can be used, together with the values
  
  of the mean (or nominal) loads and resistances to calculate load and resistance factors. The last step in the process involves
  
  adjusting the resistance factors so that they are consistent with the load factors specified by AASHTO. Recommended
  
  resistance factors are then given together with the design methods for which they were developed."
  
  
• Format:
  PDF
• Funding:
  SPR-3108
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:48563fb68fb94b5fa87f0349b3d50c0ae36c2519810715625ff530bd073dcc4d
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/23600/dot_23600_DS1.pdf
• File Type:
  [PDF - 3.23 MB ]