The Applicability of Direct Displacement-Based Design in Designing Concrete Buildings Located in Near-Fault Regions

Abstract eng:
The purpose of this paper is to investigate the applicability of the current DBD methodology developed by Priestley et al, for concrete structures due to near-fault ground motions and current available UBC spectrum. In this regard, after designing a few structures with various heights, series of nonlinear time history analysis, using the available near-fault records, were performed. According to the result of these analyses, the true behavior of these structures is compared with the desired performance, (displacement and drift which are the initial assumption of design). The results suggest that using near-fault factors introduced in current seismic codes may not provide consistent protection against near-fault effects. Moreover, this comparison will prove the need of reliable design spectrum to be used in DBD.

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