ERFORMANCE -B ASED D ESIGN OF E MBEDDED R ETAINING W ALLS S UBJECTED TO S EISMIC L OA

ERFORMANCE -B ASED D ESIGN OF E MBEDDED R ETAINING W ALLS S UBJECTED TO S EISMIC L OA - Printable Version

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ERFORMANCE -B ASED D ESIGN OF E MBEDDED R ETAINING W ALLS S UBJECTED TO S EISMIC L OA - TAFATNEB - 04-27-2014

ERFORMANCE -B ASED D ESIGN OF E MBEDDED R ETAINING W ALLS S UBJECTED TO S EISMIC L OADING

ABSTRACT
In common practice, the seismic design of an embedded retaining wall is carried out using the pseudo-static method. In this approach, constant forces are introduced in a limit equilibrium calculation, and the seismic analysis of a retaining wall is treated similarly to the evaluation of the safety against a collapse mechanism. This paper is aimed to propose a reconsideration of the simple pseudo-static calculation: it shows that the method can be used within the context of the performance-based design to predict the actual seismic performance of the wall, and that concepts employed in the capacity design of structural members can be extended to the design of embedded retaining walls. The paper also points to possible code prescriptions that may provide guidance for the correct application of the pseudo-static method to the design of retaining walls.

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