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| Format: | Artículo científico |
| Langue: | en |
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Sociedad Mexicana de Ingeniería Sísmica
2022
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| Accès en ligne: | https://www.redalyc.org/articulo.oa?id=61878896003 https://www.redalyc.org/journal/618/61878896003/ https://www.redalyc.org/journal/618/61878896003/html/ https://www.redalyc.org/journal/618/61878896003/61878896003.epub https://www.redalyc.org/journal/618/61878896003/movil |
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- Dynamic properties of clay for earthquake response analysis in the bay of Campeche Víctor Manuel Taboada Urtuzuástegui Shuang Cindy Cao Diego Cruz Roque Francisco Alonso Flores-López Prócoro Barrera Kuat C. Gan Vishal Dantal Esteban Ernesto Espinosa Samudio Sergio Dionicio Renovato Carrión Juan Manuel Hernández Durón Ingeniería shear modulus Bay of Campeche shear wave velocity material damping ratio earthquake response analysis The Bay of Campeche is located in a region of moderate to high seismic activity related to the active triple junction between the North American, Caribbean, and Cocos plate boundaries. Therefore, the fixed offshore platforms and subsea structures in the Bay of Campeche must be designed against earthquake loading. A database was developed of classification and index properties tests, in situ measurements of shear wave velocity using downhole P-S suspension seismic velocity logging, in situ piezocone penetration tests, resonant column tests to characterize the shear modulus and material damping ratio at small shear strains (10−5 % to about 0.1 %), and strain-controlled cyclic direct simple shear tests to evaluate the decrease of shear modulus and the increase of material damping ratio at large shear strains (0.1 % to about 10 %) performed on clays from the Bay of Campeche, including clays with no carbonate content to 100 % carbonate content, retrieved from the seafloor to a penetration depth of 120 m below seafloor. The database was tailored specifically to develop empirical correlations for the Bay of Campeche clay to determine Vs when in situ measurements of Vs are not available and to develop numerical modeling to predict the variation of the normalized shear modulus (G/Gmax) and material damping ratio as a function of shear strains (g) when dynamic test results are unavailable for all the clay layers. The equations developed to calculate Vs and the curves of G/Gmax-γ and D-γ of Bay of Campeche clays are recommended for preliminary or perhaps even final seismic site response evaluations. 2022 artículo científico 0185-092X https://www.redalyc.org/articulo.oa?id=61878896003 https://www.redalyc.org/journal/618/61878896003/ https://www.redalyc.org/journal/618/61878896003/html/ https://www.redalyc.org/journal/618/61878896003/61878896003.epub https://www.redalyc.org/journal/618/61878896003/movil 10.18867/RIS.109.596 en http://www.redalyc.org/revista.oa?id=618 Revista de Ingeniería Sísmica application/pdf Sociedad Mexicana de Ingeniería Sísmica Revista de Ingeniería Sísmica (México) Num.109