Title: The Stability of Precast Concrete Skeletal Structures
Date: March-April, 1998
Volume: 43
Issue: 2
Page number: 42-60
Author(s): Kim S. Elliott, Gwynne Davies, Halil Gorgun
https://doi.org/10.15554/pcij.03011998.42.60
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Abstract
Precast concrete forms a significant proportion of buildings in Europe, particularly in Northern Europe, Scandinavia and the Baltic countries. Yet the investment in research in precast concrete is much less than in structural steelwork and cast-inplace concrete, where construction practice is much more familiar. This paper presents an overview of the current research climate in Europe, together with details of work carried out in three European countries on structural stability. The design and analysis of precast skeletal structures is greatly influenced by the behavior of beam-to-column connections, where patented designs have led to a wide range of types with differing structural qualities. Full-scale experimental tests have been carried out to determine the influence of connection behavior on stability, both in the in-plane (bending) and out-of-plane (torsion) modes of sway. This paper shows how small quantities of reinforced cast-inplace infil1 concrete provide composite action between the precast elements to enhance strength, stiffness and ductility, leading to a semirigid behavior. Combined with a parametric column effective length study, test data are used to propose a method for the analysis of semi-rigid frames where column effective lengths are greatly reduced and second order (deflection induced) bending moments in the column may be distributed via the connectors to the beams, leading to significant economies.
References
l. Elliott, K. S., Multi-Story Precast Concrete Framed Structures, Black well Science, Oxford, United Kingdom, 1996, 624 pp.
2. Bruggeling, A. S. G. , and Huyge, G. F., Prefabrication With Concrete Balkema, Rotterd am, The Nether lands, 1991, 380 pp. 3 . Sheppard, D. A., and Phillips, W. R., Plant-Cast Prestressed and Precast Concrete, Third Edition , McGraw Hill, 1989, 791 pp.
4. Pessi ki , S., van Zyverden, W., Sause, R., and Slaughter, S., "Proposed Concepts for Framing Systems for Precast Prestressed Concrete Office, Buildings," PCI JOURNAL, V. 42, No. 5, Septe ber-October 1997 , pp. 66-76
5. FIP Commission on Prefabrication, Federation Intemationale de Ia Precontrainte Secretariat, The Institution of Structural Engineers, II Upper Belgrave Street, London, United Kingdom.
6. Mahdi, A. A., "Moment Rotation Effects on the Stability of Columns in Precast Concrete Structures," Ph.D. Thesis, University of Nottingham, United Kingdom, 1992.
7. ENV 1992-1-3, "Eurocode 2: Design of Concrete Structures, Part 1.3 General Rules - Precast Concrete Elements and Structures," British Standards Institute, London, United Kingdom, 1996.
8. BS 5950: 1985, "The Structural Use of Steelwork in Building," British Standards Institute, London, United Kingdom, 1985. 9. BS 8110: 1985, "The Structural Use of Concrete," British Standards Institute, London, United Kingdom, 1985.
10. ACI Committee 318, "Building Code Requirements for Structural Concrete," American Concrete Institute, Farmington Hills, MI, 1995.
11. Lindberg, R., et al., "Beam-to-Column Connections in a Story Height Concrete Frame," Report 57, Technical University of Tampere, Finland, 1992. 1
12. Keranen, A., "Effect of Semi-Rigid Connections in Reinforced Precast Concrete Portal Frame - Load Tests," Report 69, Technical University of Tampere, Finland, 1996.
13. Comair, F., and Dardare, J., "Model Testing of Precast Semi-Rigid Beamto- Column Connection," COST C1 Proceedings of First Workshop, SemiRigid Behavior of Civil Engineering tructural Connections, E.N.S.A.I.S., Strasbourg, France, 1992, pp. 99-119.
14. DeChefdebien, A., and Dardare, J., "Experimental Investigations on Current Connections Between Precast Concrete Components," COST C I Proceedings of Second Workshop, SemiRigid Behavior of Civil Engineering Structural Connections, CTU Prague, Czech Republic, 1994, pp. 21-30. March-April 1998
15. Elliott, K. S., Davies, G., and Mahdi, A. A., "Semi-Rigid Joint Behavior on Columns in Precast Concrete Buildings," COST C 1 Proceedings of First Workshop, Semi-Rigid Behavior of Civil Engineering Structural Connections, E.N.S.A.I.S., Strasbourg, France, 1992, pp. 282-295.
16. Virdi, K., and Ragupathy, R., "Analysis of Precast Concrete Frames with Semi-Rigid Joints," Proceedings of the First State of the Art Workshop, COST C 1, Strasbourg, France, 1992, pp. 296-307.
17. Elliott, K. S., Davies, G., and Gorgun, H., "The Determination of MomentRotation in Semi-Rigid Precast Concrete Connections Using the Component Method," COST C I Proceedings of Second Workshop, Semi-Rigid Behavior of Civil Engineering Structural Connections, CTU Prague, Czech Republic, 1994, pp. 31-40.
18. Elliott, K. S., Davies, G., and Gorgun, H., "Component Method Validation Tests in Precast Concrete Semi-Rigid Connections," Semi-Rigid Structural Connections, Proceedings of IABSE Colloquium, V. 75, Istanbul, Turkey, 1996, pp. 299-308.
19. Elliott, K. S., Davies, G., and Gorgun, H., "Semi-Rigid Connections in Precast Concrete Frames," 1997 Federation Intemationale de Ia Precontrainte Symposium, Johannesburg, South Africa, 1997, pp. 463-476.
20. Gorgun, H., "Semi-Rigid Behavior of Connections in Precast Concrete Structures," Ph.D. Thesis, University of Nottingham, United Kingdom, 1997.
21. Design and Typical Details of Connections for Precast and Prestressed Concrete, Second Edition, Precast/ Prestressed Concrete Institute, Chicago, IL, 1988.
22. SWANSA Computer Program, Department of Civil Engineering, City University, Northampton Square, London, United Kingdom. 23. Ragupathy, R., "Semi-Rigid Connections in Precast Concrete Frames," Ph.D. Thesis, City University, Northampton Square, London, United Kingdom, 1993.
24. Stanton, J. F., Anderson, R. G., Dolan, C., and McCleary, D. E., "Moment Resistant Connections and Simple Connections," PCI Special Research Project No. 114, Precast/Prestressed Concrete Institute, Chicago, IL, 1986.
25. Pillai, S. U., and Kirk, D. W., "Ductile Beam-Column Connections in Precast Concrete," ACI Journal, V. 78, No. 6, November-December 1981, pp. 480-487.
26. Bhatt, P., and Kirk, D. W., "Tests on Improved Beam-Column Connections for Precast Concrete," ACI Journal, V. 82, No. 6, November-December 1985, pp. 835-843.
27. Speyer, I. J., "Considerations for the Design of Precast Concrete Bearing Wall Buildings to Withstand Abnormal Loads," PCI JOURNAL, V. 21, No.2, March-April l976, pp. 18-51.
28. Ghosh, S. K., Nakaki, S. D., and Krishnan, K., "Precast Structures in Regions of High Seismicity: 1997 UBC Design Provisions," PCI JOURNAL, V. 42, No. 6, November-December 1997, pp. 76-91.
29. Elliott, K. S., Davies, G., and Adlparvar, R. M., "Torsional Behavior of Precast Concrete Edge Beams and Connections," Magazine of Concrete Research, V. 45, No. 164, 1993, pp. 157-168. 30. Elliott, K. S., Davies, G., and Gorgun, H., "Effective Length Factors in Precast Concrete Frames,"Semi-Rigid Structural Connections, Proceedings of IABSE Colloquium, V. 75, Istanbul, Turkey, 1996, pp. 349-358.
31. ENV 1994-1-1, "Eurocode 3, Part 1.1 - General Rules for Buildings: Annex J on Steel Joints in Building Frames," British Standards Institute, London, United Kingdom, 1994.