engleski

Micro-Modeling of Tested Framed-Wall with Openings

This paper uses micro modelling as a substitute for missing tests of reinforced concrete frames with openings but one cannot just use material data resulting from simple tests performed on a single material. Material behaviour in composite structures like einforced concrete frames depends on their interaction that cannot be analysed in single material tests so the model parameters have to be calibrated on tests on structures. The model is then used to extrapolate results on other cases of interest but without any guarantee that the obtained results would be safe. In this paper we report on difficulties and obstacles found in this process. The analysed cases comprise the window and door openings of medium size, centrically or eccentrically positioned within unreinforced masonry infill made of clay hollow masonry units and general purpose mortar. We discuss the physical meaning of material properties used in the model and limitations of the model extrapolation.

micro-modeling; framed-wall; opening

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