Browse > Article
http://dx.doi.org/10.12989/sem.2014.52.4.767

Design of isolated footings of circular form using a new model  

Rojas, Arnulfo Luevanos (Faculty of Engineering, Science and Architecture, Juarez University of Durango State)
Publication Information
Structural Engineering and Mechanics / v.52, no.4, 2014 , pp. 767-786 More about this Journal
Abstract
This paper presents the design of reinforced concrete circular footings subjected to axial load and bending in two directions using a new model. The new model considers the soil real pressure acting on contact surface of the circular footings and these are different, with a linear variation in the contact area, these pressures are presented in terms of the axial load, moments around the axis "X" and the axis "Y". The classical model takes into account only the maximum pressure of the soil for design of footings and it is considered uniform at all points of contact area. Also, a comparison is presented in terms of the materials used (steel and concrete) between the two models shown in table, being greater the classical model with respect the new model. Therefore, the new model is the most appropriate, since it is more economic and also is adjusted to real conditions.
Keywords
circular footings design; ground reaction; moments; bending shear; punching shear;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
1 ACI 318S-13 (American Concrete Institute) (2013), Building Code Requirements for Structural Concrete and Commentary, Committee 318.
2 Agrawal, R. and Hora, M.S. (2012), "Nonlinear interaction behaviour of infilled frame-isolated footings-soil system subjected to seismic loading", Struct. Eng. Mech., 44(1), 85-107.   DOI   ScienceOn
3 Bowles, J.E. (1996), Foundation analysis and design, McGraw-Hill, New York.
4 Calabera-Ruiz, J. (2000), Calculo de Estructuras de Cimentacion, Intemac Ediciones, Mexico.
5 Chen, W.R., Chen, C.S. and Yu, S.Y. (2011), "Nonlinear vibration of hybrid composite plates on elastic foundations", Struct. Eng. Mech., 37(4), 367-383.   DOI   ScienceOn
6 Das, B.M., Sordo-Zabay, E. and Arrioja-Juarez, R. (2006), Principios de ingenieria de cimentaciones, Cengage Learning Latin America, Mexico.
7 Gambhir, M.L. (2008), Fundamentals of Reinforced Concrete Design, Prentice-Hall, of India Private Limited.
8 Gere, J.M. and Goodno, B.J. (2009), Mecanica de Materiales, Cengage Learning, Mexico.
9 Gonzalez-Cuevas, O.M. and Robles-Fernandez-Villegas, F. (2005), Aspectos fundamentales del concreto reforzado, Limusa, Mexico.
10 Luevanos-Rojas, A. (2012a), "A mathematical model for soil pressures acting on circular footings, for obtaining the moments of design", Far East J. Math. Sci., 69(2), 219-232.
11 Luevanos-Rojas, A. (2012b), "A mathematical model for the dimensioning of circular footings", Far East J. Math. Sci., 71(2), 357-367.
12 Luevanos-Rojas, A. (2012c), "A mathematical model for soil pressures acting on circular footings, for obtaining moments and shear forces unidirectional in direction of axes "X" and "Y" ", Far East J. Math. Sci., 71(2), 367-389.
13 McCormac, J.C. and Brown, R.H. (2013), Design of Reinforced Concrete, John Wiley & Sons, New York.
14 Mosley, W.H., Bungey, J.H. and Hulse, R. (1999), Reinforced Concrete Design, Palgrave Macmillan, New York.
15 Orbanich, C.J. and Ortega N.F. (2013), "Analysis of elastic foundation plates with internal and perimetric stiffening beams on elastic foundations by using finite differences method", Struct. Eng. Mech., 45(2), 169-182.   DOI   ScienceOn
16 Parker, A. (1996), Diseno Simplificado de Concreto Reforzado, Limusa, Mexico.
17 Piskunov, N. (2004), Calculo Diferencial e Integral - Tomos 1 y 2, Limusa, Mexico, 2004.
18 Punmia, B.C., Ashok, K.J. and Arun, K.J. (2007), Limit State Design of Reinforced Concrete, Laxmi Publications (P) Limited, New Delhi, India.
19 Rad, A.B. (2012), "Static response of 2-D functionally graded circular plate with gradient thickness and elastic foundations to compound loads", Struct. Eng. Mech., 44(2), 139-161.   DOI   ScienceOn
20 Smith-Pardo, J.P. (2011), "Performance-based framework for soil-structure systems using simplified rocking foundation models", Struct. Eng. Mech., 40(6), 763-782.   DOI
21 Tomlinson, M.J. (2008), Cimentaciones, Diseno y Construccion, Trillas, Mexico.