ABSTRACT
ABSTRACT: No standard approach for the analysis of integral abutment bridges appears in the AASHTO LRFD Bridge Design Specifications or other international codes. This paper considers the approaches most suitable for modeling common integral abutment bridge forms, expanding upon recent UK guidance regarding soil-structure interaction approaches. Issues including material properties, initial stress state and the incorporation of the effects of soil ratcheting are discussed and both continuum and spring-type (‘subgrade modulus’) finite element models are explored.
