Axial and Bending Behavior of Composite Walls
Publication: Journal of Structural Engineering
Volume 124, Issue 7
Abstract
This paper describes an experimental program on walls formed from two skins of profiled steel sheeting and an in-fill of concrete. Twenty full-scale tests are reported, which include samples where both axial forces and bending moments are applied. It is shown that the axial load capacity is less than the squash load capacity calculated using current codes of practice. This is due to the early buckling of the thin steel sheeting and the difficulty in transferring the applied load between the components. A practical device is developed that provides improved load transfer. Modifications to the code methods are proposed to enable a closer prediction of the test behavior. The early steel buckling and poor load transfer also effect the out-of-plane bending capacity of the system; however, the excellent bending stiffness of the walls makes it possible to provide a very slender wall thickness.
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References
1.
“Eurocode 4, design of composite steel concrete structures: Part 1.1—general rules and rules for buildings.” (1996). DD ENV 1994-1-1, British Standard Institute, London, England.
2.
“Structural use of concrete, Part 1, Code of practice for design and construction.” (1985). BS8110:1985, British Standards Institute, London, England.
3.
Wright, H. D., Evans, H. R., and Harding, P. W.(1987). “The use of profiled steel sheeting in floor construction.”J. Constr. Steel Res., 7, 279–295.
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Wright, H. D.(1993). “The buckling of plates in contact with a rigid medium.”The Struct. Engr., London, England, 71(12), 209–215.
5.
Wright, H. D., and Gallocher, S. C.(1995). “The behaviour of composite walling under construction and service loading.”J. Constr. Steel Res., 35(3), 257–273.
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Copyright © 1998 American Society of Civil Engineers.
History
Published online: Jul 1, 1998
Published in print: Jul 1998
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