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Longitudinal cracking of composite beams with ribbed metal deck

1986; NRC Research Press; Volume: 13; Issue: 6 Linguagem: Inglês

10.1139/l86-108

1208-6029

M. S. Elkelish, Hugh Robinson,

Fatigue and fracture mechanics

An analytical study of the longitudinal cracking of composite beams with ribbed concrete slab on metal deck is presented. A layered finite element is used to model the composite beam in the analysis. The influence of six parameters on the development of the longitudinal crack is investigated in this study. These parameters are type of loading, compressive strength of the concrete slab, beam span to slab width ratio, thickness of the solid part of the slab, percentage of transverse reinforcement, and the existence of the metal deck. Three types of loading are considered, namely, uniformly distributed load over the entire slab area, single point load applied at mid-span of the beam, and two point loads applied at the third points of the span. The type of loading of composite beams has a significant effect on the location of the initial longitudinal crack.