地震作用下钢筋混凝土桥墩抗倒塌性能研究
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摘要
为研究混凝土桥墩的结构抗震性能,进行了单墩多自由度体系非线性静力推倒分析、非线性动力分析、增量动力分析。分别采用纤维模型中分布塑性铰和集中塑性铰两种建模方法,建立单墩有限元模型,利用Open Sees软件中的Hysteretic滞回模型考虑各种累积损伤的影响。
The seismic resistance of concrete abutments was studied through nonlinear static pushover analysis, nonlinear dynamic analysis and incremental dynamic analysis of single abutment under the condition of multiple-degree-of-freedom system. The finite element model of single abutment was built by using spread plastic hinge and lumped plastic hinge of fiber model respectively. The influence of various accumulative damages was taken into consideration by using Open Sees hysteretic model.
引文
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