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Earthquakes and Structures Volume 22, Number 3, March 2022 , pages 263-275 DOI: https://doi.org/10.12989/eas.2022.22.3.263 |
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Seismic resonance vulnerability assessment on shear walls and framed structures with different typologies: The case of Guadalajara, Mexico |
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Alejandro Ramírez-Gaytán, Adolfo Preciado, Hortencia Flores-Estrella, Juan Carlos Santos and Leonardo Alcántara
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| Abstract | ||
| Structural collapses can occur as a result of a dynamic amplification of either, the building's seismic response or the ground shaking by local site effects; one of the reasons is a resonance effect due to the proximity of the structural elastic fundamental period TE and the soil fundamental period TS. We evaluate the vulnerability to resonance effects in Guadalajara, México, in a three-step schema: 1) we define structural systems in the building environment of western Guadalajara, in terms of their construction materials and structural components; 2) we estimate TE with different equations, to obtain a representative value in elastic conditions for each structural system; and, 3) we evaluate the resonance vulnerability by the analysis of the ratio between TE and TS. We observe that the larger the soil fundamental period, the higher the resonance vulnerability for buildings with height between 17 and 39 m. For the sites with a low TS, the most vulnerable buildings will be those with a height between 2 and 9 m. These results can be a helpful tool for disaster prevention, by avoiding the construction of buildings with certain heights and structural characteristics that would result in a dangerous proximity between TE and TS. | ||
| Key Words | ||
| framed structures; fundamental period; infill panels; masonry; reinforced concrete; resonance; shear walls; steel | ||
| Address | ||
| Alejandro Ramírez-Gaytán:Departamento de Ciencias Computacionales CUCEI, UdeG, Marcelino García Barragán 1421, 44430, Guadalajara, México Adolfo Preciado:Departamento del Hábitat y Desarrollo Urbano, Instituto Tecnológico y de Estudios Superiores de Occidente (ITESO), Periférico Sur Manuel Gómez Morín 8585, 45604 Tlaquepaque, México Hortencia Flores-Estrella:Department of Applied Geophysics, Institute of Applied Geosciences, TU Berlin, Ernst-Reuter-Platz 1, 10587 Berlin, Germany Juan Carlos Santos:Departamento del Hábitat y Desarrollo Urbano, Instituto Tecnológico y de Estudios Superiores de Occidente (ITESO), Periférico Sur Manuel Gómez Morín 8585, 45604 Tlaquepaque, México Leonardo Alcántara:Instituto de Ingeniería, Universidad Nacional Autónoma de México, Circuito Interior, Ciudad Universitaria, Coyoacán, 04510 México City, México | ||