FraMCoS 3 1998 Gifu, Japan

Modelling Splitting and Fatigue Effects of Bond

When deformed bars are anchored in concrete, this causes not only bond stresses, but also splitting stresses that are usually not taken into account in FE-analyses of reinforced concrete structures. Therefore, a model has been developed which takes the three-dimensional…

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Year 1998
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Abstract

When deformed bars are anchored in concrete, this causes not only bond stresses, but also splitting stresses that are usually not taken into account in FE-analyses of reinforced concrete structures. Therefore, a model has been developed which takes the three-dimensional splitting effect, and also the effect of cyclic loading and changing slip direction into account. Bar pull-out tests with various geometry and with both monotonic and cyclic loading have been analysed. With the same input parameters, various bond-slip curves were obtained, depending on the modelled geometry and strength of the surrounding concrete. The results show that the new model is capable of predicting splitting failures, and of dealing with cyclic loading in a physical reasonable way.