Numerical model validation for independent check of Rion-Antirion Bridge

摘要

This paper presents a systematic approach used for calibrating and validating the finite element models that were used to check an innovative foundation design of Rion-Antirion Bridge main piers, involving a base isolation concept. The calibration and validation exercise was proven essential for geotechnical practitioners in understanding the behavior of the numerical models and capturing the failure mechanisms of a complex foundation-soil-inclusion interaction system, and also essential in predicting the ultimate foundation load carrying capacities under various loading conditions. This paper will focus on the results from the numerical model validation and present the principal results from the analyses conducted to study the influence of steel inclusions on foundation failure behavior and the effects of riprap scour protection around the piers on the sliding shear fuse behavior.