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Reseach Article
Finite Element Modeling Of Partially Composite Castellated Beams
| Communications on Applied Electronics |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 2 - Number 3 |
| Year of Publication: 2015 |
| Authors: R. E. S. Ismail, A.s. Fahmy, N. M. Tawfik |
10.5120/cae-1689
|
R. E. S. Ismail, A.s. Fahmy, N. M. Tawfik . Finite Element Modeling Of Partially Composite Castellated Beams. Communications on Applied Electronics. 2, 3 ( June 2015), 6-22. DOI=10.5120/cae-1689
Abstract
The aim of this paper is to present nonlinear three dimensional finite element models for both simple and continuous partially composite castellated beams under vertical loads using ABAQUS software. The initial geometric imperfection and material nonlinearities were carefully considered in the analysis. At first, Eigenvalue analysis is carried out to obtain the elastic buckling load and the corresponding buckling mode. In order to trace the entire load-deflection curve, the first buckling mode is factored and inserted into the inelastic geometrical nonlinear analysis of the beam as initial imperfection. Different modeling techniques available in ABAQUS are used for modeling of the shear connectors. The reliability of the models is demonstrated by comparisons with experiments and with alternative numerical and analytical analyses for simple and continuous composite beams. In addition, a parametric study is carried out to investigate the effect of change in cross-section geometries, beam length, alignment of stiffeners, concrete strength, steel strength and concrete slab thickness on the buckling and the overall structural behavior of continuous partially composite castellated beams under vertical loads. A total of 96 continuous partially composite castellated beams are studied. Based on the findings of the finite element results, a number of recommendations on the methods of modeling and on the design of continuous steel-concrete composite castellated beams are suggested.
References
- Nethercot, D. A, Kerdal, D. , (1982). Lateral torsional buckling of castellated beams. The Structural Engineer, 60B (3), 53-61.
- Larnach, J. W. , and Park, R. (1964). The behavior under load of six castellated composite T-beams. Civ. Engng. and Pub, Works, 59:692, 339-343.
- Giriyappa, J. and Baldwin, J. W. (1966). Behavior of composite castellated hybrid beams. Univ. of Missouri Engng. Experimental Res. Station, Columbia. Mo. , USA.
- Hartono. W. , and Chiew. S. P. (1996). Composite behavior of half castellated beam with concrete top slab. Advances in Steel Structures. Proceedings of a conference in Hong Kong. Pergamon. Editors: S. L. Chan and J. G. Teng. pp 437-442.
- Megharief, J. D. , (1997). Behavior of composite castellated beams. MSc thesis, McGill University, Montreal.
- Gizejowski, M. A. , Salah, W. , (2011). Numerical modeling of composite castellated beams. Proc. Local Seminar of the polish Chapter of IASS, Warsaw, 554-565.
- Salah, W. , Gizejowski, M. A. , (2008a). Numerical finite element modeling of the stability behavior of slender section steel-concrete composite beams with web openings. Proc. Local Seminar of the polish Chapter of IASS, Warsaw, 76-86.
- Salah, W. , Gizejowski, M. A. , (2008b). Experimental investigation of the stability behavior of slender section steel-concrete composite beams with web openings. Proc. Local Seminar of the polish Chapter of IASSWarsaw, 68-75.
- Gizejowski, M. A. , Salah, W. (2007). Failure modes of composite beams in the hogging moment region of continuous or semi-continuous systems. Proc. Local Seminar of the Polish Chapter of IASS, Warsaw, 114 –136.
- Gattesco, N. , (1999). Analytical modelling of nonlinear behavior of composite beams with deformable connection. Journal of Constructional Steel Research, 52, 195-218.
- Carreira, D. J. , and Chu, K. H. , (1985). Stress-Strain relationship for plain concrete in compression. ACI Struct. J. , 82(11), 797-804.
- Eurocode 4 (1992), ENV 1994-1-1:1992 – Design of composite steel and concrete structures Part: 1-1: General rules and rules for buildings. Brussels
- Baskar, K. ; Shanmugam, N. E. ; Thevendran, V. (2002). Finite element analysis of steel-concrete composite plate girder, Journal of Structural Engineering 128(9): 1158–1168.
- Liang, Q. , Uy, B. , Bradford, M. and Ronagh, H. , (2005). Strength analysis of steel-concrete composite beams in combined bending and shear, Journal of Structural Engineering. ASCE, 131(10), 1593-1600.
- Hibbitt, Karlsson and Sorensen, (2008). ABAQUS standard user's manual. Inc. vols. 1, 2 and 3. Version 6. 8-1. USA.
- Chapman, J. C. and Balakrishnan, S. , (1964). Experiments on composite beams. The Structural Engineer 42(11), 369-383.
- Ansourian P. , (1981). Experiments on continuous composite beams. Proc. Inst. Civil Eng. , Part 2, 25-51.
- El-Lobody, E. , Lam, D. , (2003). Finite element analysis of steel–concrete composite girders. Advances in Structural Engineering, 6(4), 267–81.
- Dabaon, M. A. , (2002). Effective width of composite beam at region of negative moment. Scientific Bulletin, Ain Shams University, Faculty of Engineering, 37(1), 85-109.
- Donahey, R. C. and Darwin, D. , (1986). Performance and design of composite beams with web opening. SM Report No. 18, University of Kansas Center for Research, Lawrence, Kansas, USA (April).
- Eurocode 3, (2007). Design of steel structures part 1–12: additional rules for the extension of EN 1993 up to steel grades S 700. London (UK): British Standards, Institution, BS EN 1993-1-12.
- Mashaly, E. M. , Zien Eldin, H. , El-Heweity, M. , Ismail, R. and Ismail, H. , (2010). Behavior of stub girder floor system with partial shear connection. Alexandria Engineering Journal 49,357-370.
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