| HYDRAULIC ENGINEERING |
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Mathematical model for dowel bearing capacity considering the effect of concrete damage |
| LI Pengfei1, AN Xuehui1, HE Shiqin2, CHEN Chen2 |
1. State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China;
2. College of Civil Engineering, North China University of Technology, Beijing 100144, China |
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Abstract The measured bearing capacities of dowels embedded in concrete were compared with existing formula for various conditions. A total of 11 specimens were tested to failure to investigate the effect of the bar diameter, concrete strength and concrete cover on the dowel bearing capacity. The effect of localized crushing of the concrete found from the experiment and numerical results was used to improve the formula accuracy. Specimens with different concrete covers were simulated to study the key parameters affecters the failure mechanisms. Comparisons of the analytical results with experimental data showed that the model gives good predictions for both failure mechanisms.
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| Keywords
dowel action
damage effect
mathematical model
concrete cover
finite element method
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Issue Date: 15 December 2016
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2016,
Vol. 56
