SEISMIC EVALUATION AND CLASSIFICATION BY POTENTIAL RISK OF COLLAPSE OF BUILDINGS WITH PBD
DOI:
https://doi.org/10.18867/ris.112.656Keywords:
structural pathology, soft story, probaility of collapse, failure mechanism, concrete framesAbstract
This article proposes to evaluate and classify the intensity of the pathology of soft story (SS). The SS classification will serve so that, within the universe of buildings that present this pathology, decisions may be made about which buildings require priority attention to avoid serious damage when the next major seismic event occurs. For the analysis, three models were developed based on the geometric characteristics of the most representative cases of buildings with SS damaged by the earthquake of September 19, 2017. The existence of the SS is evaluated using the Complementary Technical Standards for Earthquake Design (2020) and the models are classified by applying two methods: 1) the FEMA P-2018 method; and 2) a proposal for adapting the FEMA P-2018 with the guidelines established in the Complementary Technical Standards of Mexico City (NTC -2020). The results obtained were consistent in each of the cases analyzed, concluding that the application of this methodology allows the identification of the structures with PBD that are most susceptible to collapse; therefore, that require priority attention over others.
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