Effective Composite Beam Width at Ultimate Load

by Conrad P. Heins, (M.ASCE), Prof. of Civ. Engrg.; Univ. of Maryland, College Park, Md.,
Horn Ming Fan, (A.M.ASCE), Grad. Research Asst.; Univ. of Maryland, College Park, Md.,

Serial Information: Journal of the Structural Division, 1976, Vol. 102, Issue 11, Pg. 2163-2179

Document Type: Journal Paper


An analytical method using finite differences, has been developed by which the elastic and elastoplastic deformations of simply supported composite bridges can be predicted. At ultimate load (factored AASHTO Live Load), the effective width of the slab can then be determined. Using the developed computed program, many composite bridges were then analyzed. The effective widths at ultimate load were then determined, resulting in two empirical equations.

Subject Headings: Composite beams | Composite bridges | Live loads | Effective width | Ultimate loads | Load factors | Elastic analysis | Bridge tests

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