Seismic behavior of RC moment resisting structures with concrete shear wall under mainshock–aftershock seismic sequences
نویسندگان
چکیده
A structure may be subject to several aftershocks after a mainshock. In many seismic design provisions, the effect of sequences is either not directly considered or has been underestimated. This study examined behavior reinforced concrete (RC) moment-resisting structures with shear walls under sequences. Two three-dimensional short and medium height were designed analyzed seven real mainshock–aftershock The models loaded according Iranian code (4th ed.; Standard No. 2800) ACI-318. using nonlinear explicit finite element method. maximum displacement, inter-story drift ratio, residual ratio aftershock PGA mainshock investigated assessed. Because high lateral stiffness in addition their completely elastic behavior, did increase relative displacement model. model showed significant growth (roughly 25% some cases), plastic strain, (42.22% on average) compared that was only subjected Remarkably, cases, doubled displacement. Unlike frames sequences, no an height. Assessments indicated determinative parameter for structural such values this (> 0.6) caused increases displacements.
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ژورنال
عنوان ژورنال: Bulletin of Earthquake Engineering
سال: 2022
ISSN: ['1573-1456', '1570-761X']
DOI: https://doi.org/10.1007/s10518-021-01291-x