Steel and Composite Structures

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Integrated analysis and design of composite beams with flexible shear connectors under sagging and hogging moments

  • Wang, A.J. (Department of Civil and Structural Engineering, The Hong Kong Polytechnic University) ;
  • Chung, K.F. (Department of Civil and Structural Engineering, The Hong Kong Polytechnic University)
  • Received : 2005.08.18
  • Accepted : 2006.01.03
  • Published : 2006.12.25
⟨ Previous Next ⟩

Abstract

A theoretical research project is undertaken to develop integrated analysis and design tools for long span composite beams in modern high-rise buildings, and it aims to develop non-linear finite element models for practical design of composite beams. As the first paper in the series, this paper presents the development study as well as the calibration exercise of the proposed finite element models for simply supported composite beams. Other practical issues such as continuous composite beams, the provision of web openings for passage of building services, the partial continuity offered by the connections to columns as well as the behaviour of both unprotected and protected composite beams under fires will be reported separately. In this paper, details of the finite elements and the material models for both steel and reinforced concrete are first described, and finite element studies of composite beams with full details of test data are then presented. It should be noted that in the proposed finite element models, both steel beams and concrete slabs are modelled with two dimensional plane stress elements whose widths are assigned to be equal to the widths of concrete flanges, and the flange widths and the web thicknesses of steel beams as appropriate. Moreover, each shear connector is modelled with one horizontal spring and one vertical spring to simulate its longitudinal shear and pull-out actions based on measured load-slippage curves of push-out tests of shear connectors. The numerical results are then carefully analyzed and compared with the corresponding test results in terms of load mid-span deflection curves as well as load end-slippage curves. Other deformation characteristics of the composite beams such as stress and strain distributions across the composite cross-sections as well as distributions of shear forces and slippages in shear connectors along the beam spans are also examined in details. It is shown that the numerical results of the composite beams compare well with the test data in terms of various load-deformation characteristics along the entire deformation ranges. Hence, the proposed analysis and design tools are considered to be simple and yet effective for composite beams with practical geometrical dimensions and arrangements. Structural engineers are strongly encouraged to employ the models in their practical work to exploit the full advantages offered by composite construction.

Keywords

References

  1. ABAQUS. (2004). User's Manual, Version 6.4, Hibbitt, Karlsson and Sorensen, Inc
  2. Australian Institute of Steel Construction and Standards Australia. (1997), Composite beam design handbook in accordance with AS2327.1 - 1996, SAA HB91
  3. Baskar, K., Shanmugam, N. E. and Thevendran, V. (2002), 'Finite-element analysis of steel-concrete composite plate girder', J. Struct. Eng., 128(9), 1158-1168 https://doi.org/10.1061/(ASCE)0733-9445(2002)128:9(1158)
  4. British Standards Institution (1990), BS5950: Structural use of steelwork in building. Part 3 Section 3.1: Code of practice for design of composite beams
  5. British Standards Institution. prEN 1994-1-1. (2002), Eurocode 4: Design of composite steel and concrete structures. Part 1.1: General rules and rules for buildings. European Committee for Standardization
  6. Cas, B., Bratina, S., Saje, M. and Planinc, I. (2004), 'Non-linear analysis of composite steel-concrete beams with incomplete interaction', Steel Compos. Struct., 4(6), 489-507 https://doi.org/10.12989/scs.2004.4.6.489
  7. Chung, K. F. and Wang, A. J. (2004), 'Verification to design of perforated composite beams using finite element method', Proc. Int. Conf. Steel and Composite Structures, Seoul, Korea, 2-4 September 2004 (CD publication)
  8. Chung, K. F., Ko, C. H. and Wang, A. J. (2005), 'Design of steel and composite beams with web openings - Verification using finite element method', Steel Compos. Struct., 5(2-3), 203-234 https://doi.org/10.12989/scs.2005.5.2_3.203
  9. Fang, L. X., Chan, S. L. and Wong, Y. L. (2000), 'Numerical analysis of composite frames with partial shear-stud interaction by one element per member', Eng. Struct. 22(10), 1285-1300 https://doi.org/10.1016/S0141-0296(99)00081-4
  10. Gattesco, N. (1999), 'Analytical modelling of nonlinear behaviour of composite beams with deformable connection', J. Const. Steel Res., 52, 195-218 https://doi.org/10.1016/S0143-974X(99)00026-7
  11. Hassan, A. F. M. and Mourad, S. A. (2002), 'Numerical modeling of composite beams with web openings', J. Engineering and Applied Science, 49(1), 89-107
  12. Jayas, B. S. and Hosain, M. U. (1989), 'Behaviour of headed studs in composite beams: Full size tests', J. Civil Eng., 16, 712-724 https://doi.org/10.1139/l89-106
  13. Johnson, R. P. and Anderson, D. (2001), Designers' Handbook to Eurocode 4: Part 1.1: Design of composite steel and concrete structures. Thomas Telford, London
  14. Lam, D. and El-Lobody, E. (2005), 'Behavior of headed stud shear connectors in composite beam', J. Struct. Eng., 131(1), 96-107 https://doi.org/10.1061/(ASCE)0733-9445(2005)131:1(96)
  15. Lawson, R. M. (1989), Design of composite slabs and beams with steel decking. The Steel Construction Institute
  16. Lawson, R. M. and Chung, K. F. (1994), Composite beam design to Eurocode 4. The Steel Construction Institute
  17. Loh, H. Y., Uy, B. and Bradford, M. A. (2004a), 'The effects of partial shear connection in the hogging moment regions of composite beams, Part I - Experimental study', J. Const. Steel Res., 60(6), 897-919 https://doi.org/10.1016/j.jcsr.2003.10.007
  18. Loh, H. Y., Uy, B. and Brandford, M. A. (2004b), 'The effects of partial shear connection in the hogging moment regions of composite beams, Part II - Analytical study', J. Const. Steel Res., 60(6), 921-962 https://doi.org/10.1016/j.jcsr.2003.10.008
  19. McGarraugh, J. B. and Baldwin, J. W. (1971), 'Lightweight concrete-on-steel composite beams', Eng., J. 8(3), 90-98
  20. Oehlers, D. J. and Bradford, M. A. (1995), Composite Steel and Concrete Structural Members: Fundamental Behaviour. Pergamon
  21. Oehlers, D. J. and Sved. G. (1995), 'Composite beams with limited-slip-capacity shear connectors', J. Struct. Eng., 121(6), 932-938 https://doi.org/10.1061/(ASCE)0733-9445(1995)121:6(932)
  22. Standards Australia, Australian Standard AS2327.1. (1996), Composite Structures. Part 1: Simply supported beams. Standards Australia International Ltd
  23. The Buildings Department of the Government of Hong Kong SAR. (2005), The Hong Kong Steel Code: Chapter 10 Composite Structures
  24. Wang, Y. C. (1998), 'Deflection of steel-concrete composite beams with partial shear interaction', J. Struct. Eng., 124(10), 1159-1165 https://doi.org/10.1061/(ASCE)0733-9445(1998)124:10(1159)

Cited by

  1. Advanced finite element modelling of perforated composite beams with flexible shear connectors vol.30, pp.10, 2008, https://doi.org/10.1016/j.engstruct.2008.03.001
  2. Modelización de vigas mixtas con interacción imperfecta 2018, https://doi.org/10.1016/j.hya.2017.07.003
  3. Modeling composite beams with partial interaction vol.114, 2015, https://doi.org/10.1016/j.jcsr.2015.07.007
  4. Studies on structural behaviour of long-span continuous composite beams with flexible shear studs of limited ductility vol.17, pp.2, 2016, https://doi.org/10.1080/13287982.2016.1196572
  5. Effect of local small diameter stud connectors on behavior of partially encased composite beams vol.20, pp.2, 2016, https://doi.org/10.12989/scs.2016.20.2.251
  6. Numerical studies on composite connections under fire vol.166, pp.9, 2013, https://doi.org/10.1680/stbu.9.00013
  7. Use of Alternative Steel in Building Steelwork Design to BS 5950 vol.13, pp.3, 2010, https://doi.org/10.1260/1369-4332.13.3.431
  8. Recent Advances in Design of Steel and Composite Beams with Web Openings vol.15, pp.9, 2012, https://doi.org/10.1260/1369-4332.15.9.1521
  9. Effects of partial shear connection on the behavior of semi-continuous composite beams vol.9, pp.4, 2009, https://doi.org/10.1007/BF03249504
  10. Raffles City in Hangzhou China -The Engineering of a 'Vertical City' of Vibrant Waves- vol.6, pp.1, 2006, https://doi.org/10.21022/ijhrb.2017.6.1.33