Author: Qin, Yongxi
Title: Finite element analysis of reinforced concrete beam-column joint with non-seismic detailing by ABAQUS
Degree: M.Sc.
Year: 2017
Subject: Hong Kong Polytechnic University -- Dissertations
Finite element method
Reinforced concrete construction
Concrete construction -- Joints
Department: Faculty of Construction and Environment
Pages: x, 66 pages : color illustrations
Language: English
Abstract: In this study, the ABAQUS program is used to model the behaviour of reinforced concrete beam-column joint ("BCJs") strengthened by chamfers under seismic load. Two stages of analysis were conducted for finite element models, including elastic analysis and nonlinear analysis. In the stage of elastic analysis, ten models with chamfers of different geometries or numbers were evaluated. The second stage is nonlinear analysis, adopting the concrete damaged plasticity approach. For validation of test results and providing a valuable supplement for laboratory investigations, BCJs were modelled that had been experimentally tested and reported in previous experimental research. To verify the feasibility of chamfers for strengthening, models of other conditions were developed. Joint shear stress is a vital factor in the failure mode of BCJs and is investigated. This is followed by a comparison of numerical simulation results with the experimental data. Numerical results are proved to be reasonable and have indicated that good agreement between testing results and simulation results is achieved. Results also indicate that the number of chamfers affects the seismic performance of BCJs a lot. Finally, the most effective number and geometry of chamfer are found and it is of great value to be applied to practical use. In this project, the finite element analysis serves as a tool for performance verification and prediction.
Access: restricted access

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