Abstract
This paper presents a framework for finite element response sensitivity analysis of structural and/or geotechnical systems based on the direct differentiation method (DDM). A frame-soil system subjected to both quasi-static pushover and dynamic loads is used as application example. Focus is on the sensitivity of the FE predicted response of this SSI system with respect to the material parameters used to represent the elastoplastic behavior of the various soil and structural materials. The sensitivity analysis results provide the relative importance of the various material parameters for selected global and local response parameters of the SSI system.
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