Analysis of Two‐Way Acting Composite
Publication: Journal of Structural Engineering
Volume 111, Issue 1
Abstract
An ultimate strength analysis procedure was formulated for five full‐scale, two‐way slabs tested to failure. The concrete slabs were reinforced with composite corrugated cold‐formed steel decking. Three slabs contained supplementary reinforcing in the form of welded wire fabric. Nominal out‐toout plan dimensions of the slabs were 16 ft by 12 ft (4.88 m by 3.66 m). All slabs were subjected to four symmetrically placed, concentrated loads. Utlimate failure occurred by a shear‐bond action initiated by slippage between the steel deck and the concrete. The analysis procedure was founded on the principles of yield‐line theory and of shear‐bond regression analysis. A collapse mechanism established by yield‐line procedures was utilized to determine the effective load‐carrying‐segment width of the slabs. A shear‐bond regression analysis was used on the effective width to predict the total shear force distributed to the reactive edge perpendicular to the deck corrugations. The shear existing along the sides of the effective load‐carrying segment was subsequently added to the shear‐bond component to give the predicted ultimate load for each slab. The calculated load agreed very closely (within 9%) with the experimental ultimate for all five slabs.
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References
1.
“Building Code Requirements for Reinforced Concrete and Commentary Theorem,” ACI 318‐77, American Concrete Institute, Detroit, Mich., 1977.
2.
Mouw, K. W., and Ekberg, C. E., Jr., “Fatigue Testing of Light Gage Metal Forms,” Special Report ERI‐348, Engineering Research Institute, Ames, Iowa, 1969.
3.
Porter, M. L., “The Behavior and Analysis of Two‐way Simply Supported Concrete Floor Slabs Constructed with Cold‐formed Steel Decking,” thesis presented to Iowa State University, at Ames, Iowa, in 1974, in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
4.
Porter, M. L., Ekberg, C. E., Jr., discussion of “Composite Steel‐Concrete Construction,” by the Subcommittee on the State‐of‐the‐Art Survey of the Task Committee on Composite Construction of the Committee on Metals of the Structural Division, Journal of the Structural Division, ASCE, Mar., 1975, pp. 615–6.
5.
Porter, M. L., “Compendium of ISU Research Conducted on Cold‐Form Steel‐ Deck‐Reinforced Slab Systems,” Bulletin No. 200, Engineering Research Institute, Iowa State University, Ames, Iowa, 1979.
6.
Porter, M. L., Ekberg, C. E., Jr., “Design vs. Test Results for Steel Deck Floor Slabs,” Proceedings, Third International Specialty Conference on Cold‐Formed Steel Structures, University of Missouri‐Rolla, Rolla, Mo., 1975, pp. 792–812.
7.
Porter, M. L., Ekberg, C. E., Jr., “Design Recommendations for Steel‐Deck Floor Slabs,” Journal of the Structural Division, ASCE, Paper 12528, Vol. 102, No. ST11, Nov., 1976, pp. 2121–2136.
8.
Porter, M. L., Ekberg, C. E., Jr., Greimann, L. F., and Elleby, H. A., “Shear‐ Bond Analysis of Steel‐Deck‐Reinforced Slabs,” Journal of the Structural Division, ASCE, Paper 12611, Vol. 102, No. ST12, Dec., 1976, pp. 2255–2268.
9.
Porter, M. L., Ekberg, C. E., Jr., “Behavior of Steel‐Deck‐Reinforced Slabs,” Journal of the Structural Division, ASCE, Paper 12826, Vol. 103, No. ST3, Mar., 1977.
10.
Porter, M. L., et al., “Commentary on Specifications for the Design and Construction of Composite Slabs,” ASCE, Technical Council of Codes and Standards Division, New York, N.Y., 1982.
11.
“Specifications for Design and Construction of Composite Slabs,” ASCE Technical Council of Codes and Standards Division, New York, N.Y., 1982.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 111 • Issue 1 • January 1985
Pages: 1 - 18
Copyright
Copyright © 1985 ASCE.
History
Published online: Jan 1, 1985
Published in print: Jan 1985
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