Boumakis, Ioannis

Nincevic, Kresimir

Wan-Wendner, Roman

English

Ghent University Academic Bibliography

2019 Engineering Mechanics Institute and Geolnstitute Specialty ConferenceDiscrete Element Analysis of Slender Reinforced ConcreteColumnsWednesday, 19th June - 09:30: Poster Display (Beekman Mali) - Poster - Abstract ID: 704Mr, Kresimir Nincevic (Christian Doppler Laboratoiy j'or Life-Cycle RobustneSs in Fastening Technology University ofNatwal Resources and Life Sciences Vienna), Mr. ]namis Boumakis (Christian Doppler Laboratory for Life-Cycle Kobustness in Fastening Technology University ofNatural Resources and Life Sciences Vienna), Prof. Roman Wan-Wendner (Ghent University)Many architectura! Solutions and Creative structures tend to use column systems as main loadbearing structural system. In general, columns are structural members that transmit predominantly compressive loads. The column length and sienderness considerably influence the load capacity and trigger different failure mechanisms at differ­ent stress levels. Short columns mostly fail due to material failure when the imposed stresses exceed the material strength (i.e. concrete). Unlike short beams, long and slender columns can fail at lower stress levels due to buckling, as a result of sudden lateral deformation. This contribution focuses on the non-linear analysis of slender reinforced concrete (RC) columns. Several RC columns were cast for normal strength concrete and were axially loaded with various load eccentricities untü failure. The analysis is carried out using the Lattice-Discrete Partiele Model (LDPM). The model parameters are calibrated on material tests, as wel! as on data of column test of one size. The model val- idation is performed on column data of different configurations with a very good prediction quality. This validated model is used to investigate (a) the existence of a potentiai influence of casting direction and aggregate placement (initial imperfections, wall effect), (b) the time-dependent capacity of slender columns due to concrete aging, and (c) reductions in load capacity due to creep and shrinkage phenomena.44

Discrete element analysis of slender reinforced concrete columns

https://biblio.ugent.be/publication/8654019/file/8654020

Discrete element analysis of slender reinforced concrete columns

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Ghent University Academic Bibliography