ABSTRACT
ABSTRACT: The most recent development of engineering approach is based on concept of design consisting in prescribed performance rather than the more traditional prescriptive approaches. The paper aims to assess the effects of isolation devices on a benchmark bridge in reducing the column displacements and repair costs adopting various configurations of abutments and pier connections. The data were derived to relate response to damage of individual components within the structure and tied to explicit repair procedures that could be used for cost estimation and repair effort necessary to return the bridge to its original functionality. The contribution of the isolation technique is assessed evaluating the resistance effects applied to Peak Ground Acceleration levels in terms of cost and time repair quantities with particular attention to the bridge-abutment configuration.
