Dávalos, Héctor
Main Affiliation
Preferred name
Dávalos, Héctor
Official Name
Dávalos Alejo, Héctor Gabriel
ORCID
0000-0003-3239-1379
Researcher ID
S-2043-2018
Scopus Author ID
57204065130
18 results
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Item type:Publication, Directionality of average spectral acceleration, SaAvg, in the 2023 Kahramanmaras, Türkiye earthquake sequence(Springer Science and Business Media LLC, 2024-10-22); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Evaluation of the Effects of Ground Motion Duration on Structural Collapse<jats:title>ABSTRACT</jats:title><jats:p>This study investigates the effect of strong motion duration on the earthquake‐induced structural collapse in seven moment‐resisting frame buildings when subjected to a set of 269 recorded ground motions. Intensities necessary to produce collapse by each record as a function of their corresponding significant duration show a clear descending trend of collapse capacity with increasing duration for all buildings with a fairly strong negative correlation ranging from −0.32 to −0.61. However, it is shown that the observed descending trend, which prior studies have attributed to being the result of strong motion duration, is primarily produced by characteristics of the ground motions other than duration. Results indicate that once these other characteristics of the ground motion are accounted for, the improvements in the estimates of collapse obtained by adding the explicit consideration of strong motion duration are not significant, particularly when using the next generation of intensity measures that are much better correlated with structural collapse. It is concluded that while there are some effects of strong motion duration, they are very small and in most cases negligible, such that practically the same probabilities of collapse are obtained by using scalar intensity measures that are well correlated with collapse without the explicit consideration of the strong motion duration.</jats:p> - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Scopus© Citations 53 2 2 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Scopus© Citations 27 6 1 - Some of the metrics are blocked by yourconsent settings
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Item type:Publication, Overview of collapsed buildings in Mexico City after the 19 September 2017 (M<sub>w</sub>7.1) earthquake(2020); Jorge Ruiz-García<jats:p>An intraslab normal-faulting earthquake struck the central region of Mexico on 19 September 2017, leading to the collapse of 44 buildings in Mexico City. After the earthquake, the authors collected information in situ and through social media about the collapsed buildings, which was statistically processed to identify the causes of their collapse. This article presents the main collapse statistics, which revealed that 64% of the collapsed buildings had between 1 and 5 stories, 61% had a seismic-force-resisting system based on reinforced concrete columns with flat slabs, 57% experienced a soft-story mechanism, 91% were built before 1985, 43% were located at the corner blocks, and 10% exhibited pounding with neighboring buildings. The spatial distribution of the collapsed buildings and the recorded ground motion features suggest that short- and medium-period buildings having well-known vulnerabilities were particularly prone to collapse under amplified high-frequency seismic waves typical of intraslab normal-faulting earthquakes, such as the 2017 Puebla–Morelos earthquake.</jats:p>Scopus© Citations 42 10 2 - Some of the metrics are blocked by yourconsent settings
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Item type:Publication, Response spectral damping modification factors for structures built on soft soils(2022); Scopus© Citations 8 39 2