Comparación de modelos para determinar la máxima presión lateral en hormigones autocompactantes
Palabras clave:
Hormigón autocompactante (HAC), Modelos experimentales, Presión lateral, Encofrados verticalesResumen
El diseño de encofrados verticales depende de la predicción de la máxima presión lateral ejercida por el hormigón en estado fresco. En este trabajo se describen los modelos experimentales descritos en la bibliografía para predecir la máxima presión lateral ejercida por el hormigón autocompactante (HAC) en encofrados verticales y se realiza una comparación de los mismos frente a dos casos experimentales recopilados en la bibliografía; para columnas de pequeña y gran altura. Por lo tanto, se presentan dos objetivos fundamentales: en primer lugar justificar el uso de modelos que necesiten la determinación de un parámetro reológico para predecir la máxima presión lateral ejercida por HAC y en segundo lugar determinar el modelo que mejor se adecua a la máxima presión experimental.
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[1] EHE., “Instrucción del Hormigón Estructural - Anejo 17,” 2008.
[2] G. H. Tattersall and P. F. G. Banfill, “The rheology of fresh concrete,” 1989.
[3] H. A. Barnes, J. F. Hutton, and K. Walters, “An Introduction to Rheology,” 1989.
[4] A. S. Hanna and A. B. Senouci, “Material Cost Minimization Wall Forms,” Building and Enviroment, vol. 32, no. 1, pp. 57–67, 1997.
[5] M. Hurd, “Formwork for concrete.,” American Concrete Institute, 2005.
[6] C. Djelal, Y. Vanhove, P. De Caro, and A. Magnin, “Role of demoulding agents during self-compacting concrete casting in formwork,” vol. 35, no. October, pp. 470–476, 2002.
[7] A. H. Bakhtiarain, “Effect of concrete temperature and formwork width on variation pressure formwork of Self-Compacting Concrete,” pp. 1–9, 2011.
[8] E. P. Koehler, L. Keller, and N. J. Gardner, “Field Measurements of SCC rheology and formwork pressures,” pp. 1–6, 2007.
[9] J. H. Kim, N. Noemi, and S. P. Shah, “Effect of powder materials on the rheology and formwork pressure of self-consolidating concrete,” Cement and Concrete Composites, vol. 34, no. 6, pp. 746–753, Jul. 2012.
[10] Y. Vanhove, C. Djelal, and A. Magnin, “Prediction of the lateral pressure exerted by Self-Compacting Concrete on formwork.” 2004.
[11] H. Janssen, “Versuch über Getreidedruck in SillozeUen.,” VDI Zeitschrift, vol. 39, pp. 1045–1049, 1895.
[12] G. Ovarlez and N. Roussel, “A physical model for the prediction of lateral stress exerted by self-compacting concrete on formwork,” pp. 1–9, 2005.
[13] H. Khayat and A. F. Omran, “Evaluation of SCC Formwork Pressure,” no. August, 2009.
[14] A. F. Omran, S. Naji, and K. H. Khayat, “Portable Vane Test to Assess Structural Buildup at Rest of Self-Consolidating Concrete,” no. 108, 2011.
[15] H. Khayat, A. F. Omran, and T. V Pavate, “Inclined Plane Test to Evaluate Structural Buildup at Rest of Self-Consolidating Concrete,” no. 107, pp. 515–522, 2010.
[16] DIN 18218., “Frishbeton auf Lotrechte Schalungen (Pressure of concrete on vertical formwork).” 2010.
[17] T. Proske and C. Graubner, “-Self-Compacting Concrete - Pressure on formwork and ability to deaerate.,” vol. 17, no. 2002, pp. 1–15, 2002.
[18] T. Proske, “Frischbetondruck bei Verwendung von Selbstverdichtendem Beton. Ein wirklichkeitsnahes Modell zur Bestimmung der Einwirkungen auf Schalung und Rüstung.,” 2007.
[19] K. Khayat, J. Assaad, H. Mesbah, and M. Lessard, “Effect of section width and casting rate on variations of formwork pressure of self-consolidating concrete,” Materials and Structures, vol. 38, no. 275, pp. 73–78, Dec. 2003.
[20] M. M. Giammatteo, a. Gregori, and G. Totani, “In-situ measurement of formwork pressures generated by Self-Compacting Concrete,” Computational Methods and Experimental Measurements XIII, vol. I, pp. 851–860, Jun. 2007.
[2] G. H. Tattersall and P. F. G. Banfill, “The rheology of fresh concrete,” 1989.
[3] H. A. Barnes, J. F. Hutton, and K. Walters, “An Introduction to Rheology,” 1989.
[4] A. S. Hanna and A. B. Senouci, “Material Cost Minimization Wall Forms,” Building and Enviroment, vol. 32, no. 1, pp. 57–67, 1997.
[5] M. Hurd, “Formwork for concrete.,” American Concrete Institute, 2005.
[6] C. Djelal, Y. Vanhove, P. De Caro, and A. Magnin, “Role of demoulding agents during self-compacting concrete casting in formwork,” vol. 35, no. October, pp. 470–476, 2002.
[7] A. H. Bakhtiarain, “Effect of concrete temperature and formwork width on variation pressure formwork of Self-Compacting Concrete,” pp. 1–9, 2011.
[8] E. P. Koehler, L. Keller, and N. J. Gardner, “Field Measurements of SCC rheology and formwork pressures,” pp. 1–6, 2007.
[9] J. H. Kim, N. Noemi, and S. P. Shah, “Effect of powder materials on the rheology and formwork pressure of self-consolidating concrete,” Cement and Concrete Composites, vol. 34, no. 6, pp. 746–753, Jul. 2012.
[10] Y. Vanhove, C. Djelal, and A. Magnin, “Prediction of the lateral pressure exerted by Self-Compacting Concrete on formwork.” 2004.
[11] H. Janssen, “Versuch über Getreidedruck in SillozeUen.,” VDI Zeitschrift, vol. 39, pp. 1045–1049, 1895.
[12] G. Ovarlez and N. Roussel, “A physical model for the prediction of lateral stress exerted by self-compacting concrete on formwork,” pp. 1–9, 2005.
[13] H. Khayat and A. F. Omran, “Evaluation of SCC Formwork Pressure,” no. August, 2009.
[14] A. F. Omran, S. Naji, and K. H. Khayat, “Portable Vane Test to Assess Structural Buildup at Rest of Self-Consolidating Concrete,” no. 108, 2011.
[15] H. Khayat, A. F. Omran, and T. V Pavate, “Inclined Plane Test to Evaluate Structural Buildup at Rest of Self-Consolidating Concrete,” no. 107, pp. 515–522, 2010.
[16] DIN 18218., “Frishbeton auf Lotrechte Schalungen (Pressure of concrete on vertical formwork).” 2010.
[17] T. Proske and C. Graubner, “-Self-Compacting Concrete - Pressure on formwork and ability to deaerate.,” vol. 17, no. 2002, pp. 1–15, 2002.
[18] T. Proske, “Frischbetondruck bei Verwendung von Selbstverdichtendem Beton. Ein wirklichkeitsnahes Modell zur Bestimmung der Einwirkungen auf Schalung und Rüstung.,” 2007.
[19] K. Khayat, J. Assaad, H. Mesbah, and M. Lessard, “Effect of section width and casting rate on variations of formwork pressure of self-consolidating concrete,” Materials and Structures, vol. 38, no. 275, pp. 73–78, Dec. 2003.
[20] M. M. Giammatteo, a. Gregori, and G. Totani, “In-situ measurement of formwork pressures generated by Self-Compacting Concrete,” Computational Methods and Experimental Measurements XIII, vol. I, pp. 851–860, Jun. 2007.
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Publicado
2013-12-02
Cómo citar
[1]
S. Teixeira, A. Santilli, y I. Puente, «Comparación de modelos para determinar la máxima presión lateral en hormigones autocompactantes», Memoria investig. ing. (Facultad Ing., Univ. Montev.), n.º 11, pp. 7–14, dic. 2013.
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