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Title: An Investigation of Interfacial Behaviour in Steel-Concrete Composite System by Cohesive Zone Method
Keywords: Composite beam, cohesive zone model, bond performance
Issue Date: 21-Jan-2013
Citation: WANG TONGYUN (2013-01-21). An Investigation of Interfacial Behaviour in Steel-Concrete Composite System by Cohesive Zone Method. ScholarBank@NUS Repository.
Abstract: Interfacial behaviour between in steel-concrete composite system is modelled with cohesive zone model (CZM). The research objective is to effectively and efficiently model both mechanically connected and adhesive bonded steel-concrete interfaces. A novel tri-linear CZM and an effective damage formulation to account for mode mix is proposed and implemented. Numerical techniques to improve local numerical stability are incorporated. This study also identified key factors affecting epoxy aided shear bond performance between steel plate and fresh concrete. The interfacial bond behaviours are characterized with CZM. Numerical parametric study employing the proposed CZM are carried out to study structural response of conventional composite beams employing shear studs, bonded composite beam, and SCS sandwich beam. The numerical results agreed reasonably with experimental results and proved the effectiveness to model interfacial composite action with the proposed tri-linear CZM. Finally, a framework including testing, characterization, and numerical modelling of steel-concrete composite interfacial behaviours is proposed.
Appears in Collections:Ph.D Theses (Open)

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