Abstract
This research investigated the behaviour of a new form of composite shear wall system consisting of two skins of profiled steel sheeting and an infill of concrete under in-plane monotonic, cyclic and impact loading. The extensive experimental, analytical and numerical investigations of composite shear walls provided information on strength, stiffness, load-deformation response, steel sheet-concrete interaction, stress-strain characteristics and failure modes.Eight composite wall specimens with overall dimensions of 1626 mm (height) x 720 mm (width) were tested under monotonic, cyclic and impact loading. Steel sheet-concrete connections were provided by intermediate fasteners to generate composite action. Two types of steel sheets classified based on strength as mild and high strength and also, two types of concrete-infill namely Self-Consolidating Concrete (SCC) and Engineered Cementitious Composites (ECC) were used to construct the walls. An analytical model for shear resistance of the composite wall was developed based on existing models taking into account the shear capacity of the steel sheets, concrete core and steel-concrete interaction. Moreover, two non-linear finite element models for the composite wall under monotonic/cyclic and impact loading were developed using proprietary ABAQUS/CAE software. The performance of developed numerical models was validated against experimental results and then the models were utilized to carry out an extensive parametric study to understand the influence of material and steel-concrete interaction on the structural behaviour of the walls.
Highlights
Reinforced concrete (RC) shear walls have been traditionally used as lateral load resisting systems in many structures
At the initial stage of the research, it was intended to investigate the behaviour of profiled composite shear wall under impact loadings with two types of concrete namely SelfConsolidating Concrete (SCC) and Engineered Cementitious Composites (ECC)
Because of test set-up fabrications and instrumentation difficulties, and considering the time limit for the completion of the research, only two wall specimens with Self-Consolidating Concrete (SCC) were tested under impact loading
Summary
Reinforced concrete (RC) shear walls have been traditionally used as lateral load resisting systems in many structures. This chapter describes how the experimental test setup was developed in order to perform tests under monotonic/cyclic and impact loading under in-plane shear. The results of the experimental test program on composite walls subjected to in-plane monotonic/cyclic loading are presented. The results of the experimental test program on composite walls subjected to in-plane impact loading are presented in this chapter. One of the objectives of this study is to develop reliable finite element models which can simulate the behaviour of the composite shear wall. The development of reliable finite element models simulating the behaviour of composite shear walls under impact loading can be very useful for engineers and designers. A numerical model has been developed using ABAQUS/CAE finite element analysis software ABAQUS/Explicit module is the best option for such wave propagation analysis
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