Testing and modeling dowel and catenary action in rebars crossing shear joints in RC
| Autor: | Linh Cao Hoang, Jesper Harrild Sørensen, Gregor Fischer, John Forbes Olesen |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Engineering
business.industry Concrete plasticity 0211 other engineering and technologies Rebar Dowel action 020101 civil engineering 02 engineering and technology Structural engineering Kinematics Dowel Plasticity Second order modeling Clamping 0201 civil engineering law.invention Shear (geology) law Catenary action 021105 building & construction Catenary Structural robustness business Civil and Structural Engineering |
| Zdroj: | Sørensen, J H, Hoang, L C, Olesen, J F & Fischer, G 2017, ' Testing and modeling dowel and catenary action in rebars crossing shear joints in RC ', Engineering Structures, vol. 145, pp. 234-245 . https://doi.org/10.1016/j.engstruct.2017.05.020 |
| ISSN: | 0141-0296 |
| DOI: | 10.1016/j.engstruct.2017.05.020 |
| Popis: | This paper presents a detailed study of the shear behavior of two-sided dowel joints, which includes initiation of dowel action at small shear displacements and development of full catenary action in the reinforcement at large displacements. In addition to experimental results, the paper also presents a simple, second order plasticity model to describe the non-linear regime of the load-displacement relationship. In the model, kinematic relations and the normality condition of plastic theory are utilized to establish a unique link between the imposed shear displacement and combinations of moment and tension that develop in the rebar(s) crossing the joint. Interface friction is included in a consistent manner based on clamping stresses induced by the tension of the rebar(s). Comparison of experimental results with the model predictions shows satisfactory agreement. The model has, due to its simplicity, potential for practical applications related to assessment of structural robustness, where estimation of the available energy (area below load-displacement curve) is important. (C) 2017 Elsevier Ltd. All rights reserved. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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