Abstract
All over the world, the evaluation of seismic safety and providing retrofitting strategy for masonry buildings deserve basic attention. Therefore, improving building codes and expansion retrofitting methods a special effort is required. In Iran, a practical instruction for seismic rehabilitation of masonry schools has been published. The present instruction is developed to reduce earthquakes risk in only single-story masonry schools. To expand this instruction to two-story constructions that will be retrofitted mostly by shear walls, a comprehensive research has been conducted to estimate the seismic performance of existing two-story masonry schools. This extensive research program has seismic evaluated typical two-story Iranian masonry school. In this way, a three-dimensional finite element macro modelling technique has been developed using the Opensees software, in which the masonry panel and the reinforced concrete tie frame are modelled discretely. The effect of masonry walls in seismic capacity of structure and portion of new added shear walls has been investigated. Then the soil–structure interaction has been applied to provide foundation retrofitting method. In this study, evaluations had been obtained by nonlinear static and nonlinear dynamic analysis. The results of analysis show the Iranian two-story masonry schools have seismic vulnerability, and it is necessary improving building code for retrofitting of them. Finally, this study provides recommendations for retrofitting of two-story masonry building. The findings of this study can be used directly for the retrofitting programs of masonry buildings with similar conditions.
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Sartaji, P., Sarvghad Moghadam, A. Improving criteria for two-story confined masonry building retrofitted by shear wall. Innov. Infrastruct. Solut. 8, 323 (2023). https://doi.org/10.1007/s41062-023-01287-3
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DOI: https://doi.org/10.1007/s41062-023-01287-3