Published

2014-09-01

Biaxial bending of slender HSC columns and tubes filled with concrete under short- and long-term loads: II) Verification

Flexión biaxial de las columnas esbeltas de concreto en alta resistencia y los tubos llenos de concreto bajo cargas a corto y largo plazo: II) Verificación

Keywords:

Axial load, Biaxial bending, Columns, Composite materials, High-strength concrete, Deflections (en)
arriostramiento, pandeo, columnas, fundación elástica, pilas, conexiones semirrígidas, estabilidad (es)

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Authors

  • Jose A. Rodríguez-Gutiérrez Universidad Nacional de Colombia
  • Jose Dario Aristizabal-Ochoa Facultad de Minas, Universidad Nacional

An analytical method that calculates both the short- and long-term response of slender columns made of high-strength concrete (HSC) and of tubes filled with concrete with generalized end conditions that are subjected to transverse loads along the span and to axial loads at the ends (causing single- or double-curvature under uniaxial or biaxial bending) is presented in a companion paper. The columns that can be analyzed with this method include those with solid and hollow (rectangular, circular, oval, C-, T-, L-, or any arbitrary shape) cross sections and columns made of circular and rectangular steel tubes filled with HSC. In this paper, the validity of the proposed method is tested against experimental results from the technical literature that examined over seventy column specimens.

En un artículo adjunto se presenta el método analítico para calcular las respuestas, a corto y largo plazo, de las columnas esbeltas de concreto en alta resistencia (HSC) y de los tubos rellenos de hormigón; con condiciones de apoyo generalizados, sometidos a cargas transversales de luz y a cargas axiales excéntricas en los extremos (causando curvatura simple o doble bajo flexión uniaxial o biaxial). Los tipos de columnas que pueden ser analizadas son: ovaladas, rectangulares, circulares, C, T, L o de cualquier sección transversal arbitraria, sólida o hueca, además, las que están hechas de tubos de acero circulares y rectangulares llenos de concreto en alta resistencia. En esta publicación se presenta la validez del método y los resultados obtenidos son comparados con otros, que han sido reportados por diferentes investigadores en la literatura técnica, con más de setenta muestras de columnas.

References

Cederwall, K., Engstrom, B., & Grauers, M. (1990). High-Strength Concrete used in composite columns. ACI, (SP-121), 195-214.

Claeson, C., & Gylltoft, K. (2000). Slender Concrete Column Subjected to Sustained and Short-Term Eccentric Loading. ACI structural J., 97(1), 45-52.

Hsu, C-T. T., Hsu, L. S. M., & Tsao, W-H. (1995). Biaxially Loaded Slender High-Strength Reinforced Concrete with and without Steel Fibres. Magazine of concrete Research, 47(173), 299-310.

Kilpatrick, A. E., & Rangan, B. V. (1999). Test on High-Strength Concrete-Filled Steel Tubular Columns. ACI structural J., 96(2), 268-274.

Lloyd, N. A., & Rangan, B. V. (1996). Studies on High Strength Concrete Columns under Eccentric Compression. ACI Structural J., 93(6), 631-638.

Rodriguez-Gutierrez, J. A., & Aristizabal-Ochoa, J. D. (2014). Biaxial bending of slender HSC columns and tubes filled with concrete under short and long term loads: I) Theory. Ingeniería e Investigación, 34(2), 23-28. DOI: https://doi.org/10.15446/ing.investig.v34n2.41118

Varma, A. H., Ricles, J. M., Sause, R., & Lu, L. (2002). Experimental Behavior of High Strength Square Concrete-Filled Steel Tube Beam-Columns. J. Struct. Engrg., 128(3), 309-318.

How to Cite

Biaxial bending of slender HSC columns and tubes filled with concrete under short- and long-term loads: II) Verification. (2014). Ingeniería E Investigación, 34(3), 19-25. https://doi.org/10.15446/ing.investig.v34n3.42950

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Copyright (c) 2014 Jose A. Rodríguez-Gutiérrez, Jose Dario Aristizabal-Ochoa

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