Abstract
This research concentrated on the nonlinear finite element (FE) modeling of one-way composite floor slab system comprising of profiled steel deck and two types of concrete namely, Engineered Cementitious Composites (ECC) and Self-Consolidating Concrete (SCC). Two FE models were developed based experimental results of composite slabs subjected to in-plane monotonic loading. The simulated load-deflection response, moment resistance, and shear bond capacity using two FE models were in reasonable good agreement with experimental results. The FE models were used in a comprehensive parametric study to investigate the effect of numerical model parameters such as mesh size, dilation angle, steel sheet-concrete interaction contact, material properties and composite slab span. In addition, FE models were used to determine shear bond parameters of ECC and SCC composite slabs that can be used for design purposes.
Highlights
Composite floor is a structural system that uses the composite action between the steel deck and the concrete
Little research has been conducted to date on the structural performance of composite slabs with Engineered Cementitious Composite (ECC)
The accuracy and performance of finite element (FE) models were tested by comparing FE based load-deflection responses with those obtained from experiments
Summary
Composite floor is a structural system that uses the composite action between the steel deck and the concrete. Ekberg and Schuster (1968), and Schuster (1976) introduced the construction industry to the different composite floor systems, such as the concrete slabs that utilize transverse wires, embossments on flanges and webs of the steel sheeting In conjunction with these studies, Porter and Ekberg (1976) provided the design recommendations for the profiled composite floor slabs. The research included over 200 tests on the elements of composite steel deck slab, and the results were validated with the design methods to study the aspects of construction phase, composite slab and steel beam action phase. ABAQUS/Standard is used for generalpurpose analysis that solves a system of equations implicitly at each result increment It is capable of resolving an inclusive range of linear and nonlinear problems including static, dynamic, thermal, and electrical response of elements.
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