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Dynamic Behaviour of Reinforced Concrete Structures: Analyses with a Strong Discontinuity Approach

Per‐Ola Svahn-2005-01-01-Chalmers Publication Library (Chalmers University of Technology)
2

TL;DRAbstract

Reinforced concrete is a widely used construction material. To obtain efficient design of new structures and to verify the real mechanical behaviour of existing ones, it is necessary to improve the understanding of advanced structural analyses of reinforced concrete structures. The presence of cracks is characteristic for concrete structures in service states as well as in ultimate limit states. In concrete micro-cracks are successively joined into macro-cracksduring loading, and the tensile strength of the material is obtained at this stage. As the propagation of micro-cracks is retarded in dynamic loading, the concrete shows a clear rate-dependent response. In this work a simplified experimental method is proposed for determination of the tensile strength of impact loaded concrete. However, the major part of the work concerns analyses of reinforced concrete.Degradation of concrete is today modelled by either a continuous or discontinuous approach. In this work the discontinuous one i

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Reinforced concrete is a widely used construction material. To obtain efficient design of new structures and to verify the real mechanical behaviour of existing ones, it is necessary to improve the understanding of advanced structural analyses of reinforced concrete structures. The presence of cracks is characteristic for concrete structures in service states as well as in ultimate limit states. In concrete micro-cracks are successively joined into macro-cracksduring loading, and the tensile strength of the material is obtained at this stage. As the propagation of micro-cracks is retarded in dynamic loading, the concrete shows a clear rate-dependent response. In this work a simplified experimental method is proposed for determination of the tensile strength of impact loaded concrete. However, the major part of the work concerns analyses of reinforced concrete.Degradation of concrete is today modelled by either a continuous or discontinuous approach. In this work the discontinuous one i

Keywords

Classification of discontinuitiesFinite element methodStructural engineeringDiscontinuity (linguistics)Materials scienceUltimate tensile strengthIsotropyReinforced solid

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