Performance Based Design of Laterally Loaded Drilled Shafts.

摘要

Reliability-based design of deep foundations such as drilled shafts has been increasingly important due to the heightened awareness of the importance of risk management. The load and resistance factor design has been implemented by FHWA since 2007. Nevertheless, there are still many unsolved issues regarding the implementation of load and resistance factor design. In an attempt to address these issues, a performance-based design approach has been developed in which Monte Carlo simulation is employed to conduct reliability analysis. A series of computer codes were developed and validated. It was found that the spatial variability of soils is an important consideration in reliability analysis.