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| Nonlinear finite element analysis of RC beams strengthened using steel plate-concrete composite technique |
| Received:December 27, 2007 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20096024 |
| KeyWord:RC beams strengthened using steel plate-concrete composite technique new-old concrete interface peeling failure finite element analysis |
| Author | Institution |
| 赵洁 |
清华大学 土木工程系 结构工程与振动教育部重点实验室,北京 |
| 聂建国 |
清华大学 土木工程系 结构工程与振动教育部重点实验室,北京 |
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| Abstract: |
| A finite element model to simulate RC beams strengthened using Steel Plate-Concrete Composite (SPCC) technique is presented based on the experimental research of ten RC beams strengthened using SPCC technique. The load-slip model and fracture model of studs are the same as the models in SPCC beams, and proper load-slip model of new-old concrete interface is proposed. The structural behaviors of RC beams strengthened directly, strengthened after being damaged and strengthened under load are simulated respectively using the FE package ABAQUS. By comparing with the experimental results, the proposed model is shown to provide accurate predictions of flexural failure and new-old concrete interface peeling failure modes. The parameters, such as thickness of steel plate, height and length of the strengthening part, etc. are analyzed. Several design advises are given according to the results. |