Catenary Action in Rebars Crossing a Casting Joint Loaded in Shear

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Abstract

Reinforcement crossing a casting joint loaded in shear exhibits catenary action as the shear displacement increases. The load carrying capacity of such a joint is in practice often calculated by use of empirical methods to account for shear friction effects or by a first order plastic analysis if dowel action is included. The strength increase/reserve due to catenary action in the rebars is often neglected;
however in some cases it may be necessary to utilize the effect in order to ensure overall structural robustness. This paper presents results of a study, where the increased shear capacity due to catenary action was investigated experimentally in a simple push-off setup and theoretically by a second order plastic analysis. The model captures the combination of dowel and catenary action with increasing shear displacement and satisfactory correlation between the S-shaped test results and theory is found when reasonable material properties are assumed.
Original languageEnglish
Title of host publicationProceedings of 11th fib International PhD Symposium in Civil Engineering
Publication date2016
Pages735-742
Publication statusPublished - 2016
Event11th fib International PhD Symposium in Civil Engineering - Tokyo, Japan
Duration: 29 Aug 201631 Aug 2016
Conference number: 11

Conference

Conference11th fib International PhD Symposium in Civil Engineering
Number11
CountryJapan
CityTokyo
Period29/08/201631/08/2016

Cite this

Sørensen, J. H., Hoang, L. C., Olesen, J. F., & Fischer, G. (2016). Catenary Action in Rebars Crossing a Casting Joint Loaded in Shear. In Proceedings of 11th fib International PhD Symposium in Civil Engineering (pp. 735-742)