Composite Slab Behavior and Strength Analysis. Part II: Comparisons with Test Results and Parametric Analysis
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VIEW THE ORIGINAL ARTICLEPublication: Journal of Structural Engineering
Volume 119, Issue 1
Abstract
The results of selected tests on full‐scale one‐way single and continuous span composite slabs with ribbed decking are presented. Variables investigated in these tests include the number of spans, the presence of embossments in the decking, end anchorage (both welded and shot‐fired shear connectors), and negative moment reinforcement near interior supports. An example comparison is given between a standard test and the calculation procedure combining shear‐bond test results with a finite element analysis (the calculation procedure was presented in part I). The importance of composite slab internal moment resistances as a function of the applied load is examined. For a composite slab, three internal moment resistance elements are of importance: the decking, concrete slab (including additional reinforcement), and the interaction between decking and concrete slab. Parametric analyses based upon the calculation procedure predictions are performed for three decking geometries using limiting slenderness ratios. Decking types were chosen to represent a wide range of shear bond connection characteristics. Slenderness ratio is defined as the span length divided by the total composite slab depth. The effects of eleven parameters are investigated for each decking and slenderness. Effects studied include the load‐carrying capacity at service deflection limits (L/250), ultimate deflection limits (L/50), and maximum load‐carrying capacity.
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References
1.
Daniels, B. J. (1990). “Comportement et capacité portante des dalles mixtes: modélisation mathématique et étude expérimentale,” PhD Thèse, Ecole polytechnique fédérale de Lausanne, Switzerland.
2.
“Eurocode no. 4.” (1990). Design of composite steel and concrete structures. Part 1: general rules and rules for buildings, revised draft, issue 1, Commission of the European Communities, Brussels, Belgium.
3.
“Specifications for the design and construction of composite slabs.” (1984). ASCE standard. ASCE, New York, N.Y.
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Copyright © 1993 American Society of Civil Engineers.
History
Received: May 28, 1992
Published online: Jan 1, 1993
Published in print: Jan 1993
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