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Optimal area for ECFs with partially compressed contact surface
Área óptima para ZCEs con superficie de contacto parcialmente comprimida
DOI:
https://doi.org/10.15446/dyna.v93n243.126449Palabras clave:
ECFs, minimum area, optimal surface, PCA, FCA (en)ZCEs, área mínima, superficie optima, APC, ATC (es)
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The main objective of this article is to present the minimum area (Amin) in contact with the ground for elliptical combined footings (ECFs), assuming the partially compressed area (PCA), i.e., a zone of the surface under the base in contact with the soil is compressed, and the other is not (the soil pressure is linear). Several authors present the Amin for ECFs, but the fully compressed area (FCA). The methodological development is presented through integration to determine the equations of the resultant force and the resultant moments on the X and Y axes for case I (FCA) and for case II (PCA). Six numerical studies are shown to demonstrate the advantages of using the model proposed in this article (PCA) with respect to the model proposed by other authors (FCA). The results show significant savings with case II, up to 53.11% compared to case I. Therefore, this work will be very useful for foundation designers.
El objetivo principal de este artículo es presentar el área mínima (Amin) en contacto con el terreno para zapatas combinadas elípticas (ZCEs), asumiendo el área parcialmente comprimida (APC), es decir, una zona de la superficie bajo la base en contacto con el suelo está comprimida, y la otra no (la presión del suelo es lineal). Varios autores presentan el Amin para ZCEs, pero el área totalmente comprimida (ATC). El desarrollo metodológico se presenta mediante la integración para determinar las ecuaciones de la fuerza resultante y los momentos resultantes en los ejes X e Y para el caso I (ATC) y para el caso II (APC). Se presentan seis estudios numéricos para demostrar las ventajas de utilizar el modelo propuesto en este artículo (APC) con respecto al modelo propuesto por otros autores (ATC). Los resultados muestran un ahorro significativo con el caso II, de hasta un 53,11 % en comparación con el caso I. Por lo tanto, este trabajo será de gran utilidad para los diseñadores de cimentaciones.
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