ENG  Vol.6 No.13 , December 2014
Finite Element Modelling of Steel Beams with Web Openings
Abstract
Height limitations are not uncommon in multi-storey buildings due to economic requirements and esthetical considerations. Substantial spaces are normally required to enable the passage of large pipes and ducts beneath steel beams leading to uneconomic floor heights. The most adopted solution for this issue is the use of steel beam web openings to provide the required space for services. These openings could lead to a significant decrease of the beam load carrying capacity depending on the adopted openings shape, size and location. These aspects motivated the present study based on FE simulations calibrated against numerical and test results. The results accuracy enabled a comprehensive parametric analysis of beams with web openings to be made focused on the profile size, web opening location, among others. The study also investigated the efficiency of longitudinal stiffeners welded at the opening region and benefits of using an adequate edge concordance radius in beams with rectangular and square openings. The obtained results showed the need of using welded longitudinal stiffeners in order to increase the beams ultimate load carrying capacity. This adoption can double or even triple the ultimate load of beams with rectangular and square opening heights equal to 0.75 H, respectively.

Cite this paper
Rodrigues, F. , da S. Vellasco, P. , de Lima, L. and de Andrade, S. (2014) Finite Element Modelling of Steel Beams with Web Openings. Engineering, 6, 886-913. doi: 10.4236/eng.2014.613082.
References

[1]   Chung, K.F. and Ko, C.H. (2002) Harmonization on Practical Design of Steel and Composite Beams with Large Web Openings for Full Integration with Building Services. Proceedings of the Second Structural Engineering World Congress, Yokohama, 9-12 October 2002 (CD Publication).

[2]   Chung, K.F. and Lawson, R.M. (2001) Simplified Design of Composite Beams with Large Web Openings to Eurocode 4. Journal of Constructional Steel Research, 57, 135-163.
http://dx.doi.org/10.1016/S0143-974X(00)00011-0

[3]   Lawson, R.M. (1987) Design for Openings in the Webs of Composite Beams. CIRIA/Steel Construction Institute, CIRIA Special Publication and SCI Publication 068, Ascot.

[4]   Darwin, D. (1990) Steel and Composite Beams with Web Openings. Steel Design Guide Series, Vol. 2. AISC-American Institute of Steel Construction, Chicago.

[5]   Redwood, R.G. and Cho, S.H. (1993) Design of Steel and Composite Beams with Web Openings. Journal of Constructional Steel Research, 25, 23-41.
http://dx.doi.org/10.1016/0143-974X(93)90050-3

[6]   Oehlers, D.J. and Bradford, M.A. (1995) Composite Steel and Concrete Structural Members: Fundamental Behaviour. Kidlington, Oxford.

[7]   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 and Composite Structures, 5, 203-233.
http://dx.doi.org/10.12989/scs.2005.5.2_3.203

[8]   Ko, A.C.H. and Chung, K.F. (2002) A Review of Recent Developments on Design of Perforated Beams. Proceedings of the Third International Conference on Advances in Steel Structures, Hong Kong, 9-11 December 2002, 121-128.

[9]   Wang, A.J. and Chung, K.F. (2008) Advanced Finite Element Modelling of Perforated Composite Beams with Flexible Shear Connectors. Engineering Structures, 30, 2724-2738.
http://dx.doi.org/10.1016/j.engstruct.2008.03.001

[10]   Chung, K.F., Liu, T.C.H. and Ko, A.C.H. (2001) Investigation on Vierendeel Mechanism in Steel Beams with Circular Web Openings. Journal of Constructional Steel Research, 57, 467-490.
http://dx.doi.org/10.1016/S0143-974X(00)00035-3

[11]   Lakusic, V.T., Dzeba, I. and Androic, B. (2008) The Buckling Curve for Lateral-Torsional Buckling Resistance of Castellated Beams. Eurosteel-5th European Conference on Steel and Composite Structures, Graz, 3-5 September 2008, 1587-1592.

[12]   CEN-European Committee for Standardization (1998) Eurocode 3—Design of Steel Structures—Part 1-1: General Rules and Rules for Buildings. ENV 1993-1-1:1992/A2 Annex N, Brussels.

[13]   CEN-European Committee for Standardization (2005) Eurocode 3—Design of Steel Structures—Part 1-1: General Rules and Rules for Buildings. ENV 1993-1-1, Brussels.

[14]   CEN-European Committee for Standardization (1992) Eurocode 3—Design of Steel Structures—Part 1-1: General Rules and Rules for Buildings. EN 1993-1-1, Brussels, Belgium and Not ENV 1993-1-1, Brussels, Belgium.

[15]   Radic, I., Markulak, D. and Varevac, D. (2008) Numerical Simulation of Lateral Stability. Eurosteel-5th European Conference on Steel and Composite Structures, Graz, 3-5 September 2008, 1593-1598.

[16]   Basher, M.A., Shanmugam, N.E. and Khalim, A.R. (2009) Web Openings in Horizontally Curved Composite Plate Girders. Journal of Constructional Steel Research, 65, 1694-1704.
http://dx.doi.org/10.1016/j.jcsr.2009.02.009

[17]   Hagen, N.C., Larsen, P.K. and Aalberg, A. (2009) Shear Capacity of Steel Plate Girders with Large Web Openings, Part I: Modeling and Simulations. Journal of Constructional Steel Research, 65, 142-150.
http://dx.doi.org/10.1016/j.jcsr.2008.03.014

[18]   Hagen, N.C. and Larsen, P.K. (2009) Shear Capacity of Steel Plate Girders with Large Web Openings, Part II: Design Guidelines. Journal of Constructional Steel Research, 65, 151-158.
http://dx.doi.org/10.1016/j.jcsr.2008.03.005

[19]   Lagaros, N.D., Psarras, L.D., Papadrakakis, M. and Panagiotou, G. (2008) Optimum Design of Steel Structures with Web Openings. Engineering Structures, 30, 2528-2537.
http://dx.doi.org/10.1016/j.engstruct.2008.02.002

[20]   Lian, V.T. and Shanmugan, N.E. (2003) Openings in Horizontally Curved Plate Girder Webs. Thin-Walled Structures, 41, 245-269.
http://dx.doi.org/10.1016/S0263-8231(02)00090-3

[21]   Liu, T.C.H. and Chung, K.F. (2003) Steel Beams with Large Web Openings of Various Shapes and Sizes: Finite Element Investigation. Journal of Constructional Steel Research, 59, 1159-1176.
http://dx.doi.org/10.1016/S0143-974X(03)00030-0

[22]   Chung, K.F., Liu, T.C.H. and Ko, A.C.H. (2003) Steel Beams with Large Web Openings of Various Shapes and Sizes: An Empirical Design Method Using a Generalised Moment-Shear Interaction Curve. Journal of Constructional Steel Research, 59, 1177-1200.
http://dx.doi.org/10.1016/S0143-974X(03)00029-4

[23]   Rodrigues, F. (2007) Comportamento estrutural de vigas de aco e mistas com aberturas na alma. Dissertation, UERJ-State University of Rio de Janeiro, Rio de Janeiro. (in Portuguese)

[24]   Redwood, R.G. and Mccutcheon, J.O. (1968) Beam Tests with Unreinforced Web Openings. Journal of the Structural Division, 94, 1-17.

[25]   ANSYS Academic Research. Swanson Analysis Systems, Inc. (2008) Version 11.0. Basic Analysis Procedures. 2nd Edition, Houston.

[26]   Bitar, D., De Marco, T. and Martin, P.O. (2005) Steel and Composite Cellular Beams—Novel Approach for Design Based on Experimental Studies and Numerical Investigations. Eurosteel 2005, 4th European Conference on Steel and Composite Structures, Maastricht, 1.10.1-1.10.8.

 
 
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