Journal ArticleDOI
Analysis of Composite Beams
TLDR
In this paper, the behavior of composite beams consisting of a concrete slab attached to a steel beam by a shear connection is examined, and the effects of interface slip due to the flexibility of the connectors are included, as well as effects of residual stress and nonlinearity in the mechanical properties of the steel and concrete.Abstract:
The behavior is examined of composite beams consisting of a concrete slab attached to a steel beam by a shear connection. The effects of interface slip due to the flexibility of the connectors are included, as are the effects of residual stress and nonlinearity in the mechanical properties of the steel and concrete. Elastic methods of analysis are reviewed with the object of assessing the errors introduced by the conventional T-beam assumption. Comparisons are made with test reults on beams having adequate or inadequate shear connections, and having the relatively high width to span ratio of 0.35. In the nonlinear range, it was found that the combined effects of slip and residual stress were significant and could raise deflections by as much as 100%.read more
Citations
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Journal ArticleDOI
Composite Beams with Partial Interaction under Sustained Loads
Mark A. Bradford,R. Ian Gilbert +1 more
TL;DR: In this paper, the authors derived a theoretical model for the time-dependent response of simply supported steel-concrete composite beams and found that the slip strains are increased by the interaction of creep, shrinkage, and connector modulus, but their absolute values are still reasonably small at service loads.
Journal ArticleDOI
Modeling of steel-concrete composite beams under negative bending
TL;DR: In this paper, a model of steel and concrete composite beams subjected to negative bending is presented, which accounts for the slip occurring at both the beam-slab interface and the steel reinforcement-concrete interface.
Journal ArticleDOI
Vibrations of steel–concrete composite beams with partially degraded connection and applications to damage detection
Michele Dilena,Antonino Morassi +1 more
TL;DR: In this paper, an Euler-Bernoulli model of composite beams is presented to accurately describe the dynamic response measured on composite beams with either severe or intermediate levels of damage and a diagnostic technique based on frequency measurements is then applied to the suggested model and it gives positive results.
Journal ArticleDOI
Non-linear analysis of composite beams under positive bending
TL;DR: In this article, a numerical procedure that allows a reliable analysis of the structural behavior of composite beams subjected to sagging moment due to short term loads, both in serviceability and ultimate state, is proposed.
Journal ArticleDOI
A Damage Analysis of Steel-Concrete Composite Beams Via Dynamic Methods: Part I. Experimental Results:
Antonino Morassi,Luigi Rocchetto +1 more
TL;DR: In this paper, damage was induced by removing concrete around some elements connecting the steel beam and the reinforced concrete slab, and consequently causing a lack of structural solidarity between the two beams.
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