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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Impact of Seismic Input on Strain/Displacement Response of Reinforced Concrete Members and Frames
Author(s): Aidcer L. Vidot-Vega and Mervyn Kowalsky
Publication: Structural Journal
Appears on pages(s): 178-187
Keywords: cyclic loads; load history; reinforced concrete frames; seismic accelerations; strains
Abstract:This is a study on the effect of displacement histories on the relationship between material strains and deformation parameters such as displacement and drift for reinforced concrete (RC) moment frame structures. The study is divided into two phases: 1) a phase that considers RC column members subjected to symmetrical and asymmetrical reversed cyclic displacement and seismic time histories. Columns with 2 and 4% longitudinal steel ratios and 5 to 20% axial load ratios are analyzed; and 2) a phase that considers moment frames subjected to seismic acceleration time histories. A total of five moment frame models are analyzed. The results are compared to monotonic analyses and simplified design expressions that were previously developed by the authors. The analysis results support the use of monotonic section analyses to define the envelope of seismic response because the relationship between strains and displacements of seismically well-designed members appears to be minimally affected by loading history.
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