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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Grid Model for Flat-Slab Structures
Author(s): Dario Coronelli
Publication: Structural Journal
Appears on pages(s): 645-653
Keywords: drift capacity; flat slabs; grid models; lateral loads; punching shear; shear reinforcement; slab-column connections
Abstract:A grid model is proposed for the nonlinear behavior of flat-slab structures. The inelastic response of the structure is concentrated in point hinges introduced into beam finite elements, modeling the response in bending, torsion, and shear. Both concentric punching and failures with unbalanced moments and shear are investigated. Static pushover analysis is used for the effects of gravity and lateral loads. The results are compared to experimental studies on interior, lateral, and corner slab-column connections. The effect of different types and arrangements of transverse reinforcement and the influence of the gravity load level on the drift capacity are shown. The formulation with internal moments, torque, and shear is synthetic and computationally light; three-dimensional (3-D) spatial configurations are considered.
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