Flexural Strength of Steel-Concrete Composite Beams

by Roger G. Slutter,
George C. Driscoll,

Serial Information: Journal of the Structural Division, 1965, Vol. 91, Issue 2, Pg. 71-99

Document Type: Journal Paper


Tests on twelve single span and one two-span continuous, full scale composite beams are described, and the results evaluated. The investigation was concerned with determining the minimum number of shear connectors required for steel and concrete composite beams in buildings. A thorough examination of the ultimate strength of members was made. A criterion for the minimum shear connector requirement was derived based on the ultimate strength of the members. Relationships between the ultimate strengths of commonly used types of mechanical shear connectors and the ultimate strength of a composite beam are developed. The deflection of members is shown to be larger for beams with the minimum recommended shear connection as compared to theoretical bending deflections, and the magnitude of these deflections is discussed.

Subject Headings: Composite beams | Shear strength | Flexural strength | Connections (structural) | Structural strength | Ultimate strength | Displacement (mechanics) | Concrete

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