A fiber beam-column element considering nonlinear shear effects for seismic response analysis of reinforced concrete coupling beams II:application and discussion
Ding Ran Nie Jianguo Tao Muxuan
Key Laboratory of Civil Engineering Safety and Durability of the Ministry of Education, Tsinghua University, Beijing 100084, China
Abstract：The fiber beam-column element developed for nonlinear analysis of conventional RC coupling beams is applied to the simulation of 16 coupling beam specimens. The numerical results correlate well with the test results,which validates the accuracy of the model. By analyzing the failure modes and various deformation components, the deformation mechanism of coupling beams and its influencing factors are discussed. Then, based on a large number of test results, the formulas for shear bearing capacity, shear stiffness after diagonal cracking and limit curve of conventional RC coupling beams are verified and compared to those suggested by other researchers. It is shown that the formulas proposed in this study are more accurate and thus more suitable for conventional RC coupling beams. Finally, the numerical stability of the developed element is examined and verified based on some numerical tests with complex and extreme loading paths. It can be demonstrated from all the validation that the model proposed in this paper provides a new tool for seismic response analysis of conventional RC coupling beams and high-rise structures due to its accuracy, efficiency and convenient modeling procedure, as well as good numerical stability.
丁 然 聂建国 陶慕轩. 用于钢筋混凝土连梁地震反应分析的考虑非线性剪切的纤维梁单元II：应用与讨论[J]. 土木工程学报, 2016, 49(4): 31-39.
Ding Ran Nie Jianguo Tao Muxuan. A fiber beam-column element considering nonlinear shear effects for seismic response analysis of reinforced concrete coupling beams II:application and discussion. 土木工程学报, 2016, 49(4): 31-39.
