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Title: Punching Failure of Interior Slab-Column Connections-Influence of Material Properties and Size Effect

Author(s): J. Oibolt, H. Vocke, and R. Eligehausen

Publication: Symposium Paper

Volume: 201


Appears on pages(s): 93-110

Keywords: crack band; design recommendations; finite elements; microplane model; size effect; smeared fracture

Date: 7/1/2001

In the present paper the results of a three-dimensional finite element analysis of punching failure in reinforced concrete slabs are presented and discussed. The analysis is carried out using the three-dimensional special purpose finite-element code MASA. To demonstrate that the finite element code is able to realistically predict the punching failure, a punching test on an interior slab-column connection is analyzed. The results of the analysis are compared with the test results. Subsequently, a parametric study is performed where the concrete properties and the reinforcement ratio are varied. To investigate the size effect, for a fixed set of material parameters the slab geometry is scaled in a size range of practical interest.


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