FraMCoS 3 1998 Gifu, Japan

Size Effect on the Concrete Compression Failure Load

A numerical analysis was performed in order to check if the ultimate strain and stress capacity of compressed concrete columns is size independent what is currently used in design codes. The analysis was first performed for a series of eccentric…

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Year 1998
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Abstract

A numerical analysis was performed in order to check if the ultimate strain and stress capacity of compressed concrete columns is size independent what is currently used in design codes. The analysis was first performed for a series of eccentric compressed specimens of different sizes by use of the 3D finite element program MASA which is based on the microplane material model. The numerical results were compared with experimental data. Furthermore, the size effect study of plain concrete columns for a broader size range was carried out. Both numerical and experimental results show almost no size effect on the nominal strength but an evident size effect on the deformational capacity exists.