Finite element seismic response analysis of a reinforced concrete pier with a fractured finite tetrahedron mesh
Finite element seismic response analysis of a reinforced concrete pier with a fractured finite tetrahedron mesh
复制标题
断裂有限四面体网格钢筋混凝土桥墩地震反应有限元分析
DOI：
10.1142/s1793431116400133
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发表时间：
2016
影响因子：
1.5
通讯作者：
Takuzo Yamashita and Satoyuki Tanaka
中科院分区：
文献类型：
--
作者：
Shigenobu Okazawa;Takumi Tsumori;Takuzo Yamashita and Satoyuki Tanaka
利用1995年日本兵库县南部大地震中高取地震台记录的地震波，对钢筋混凝土桥墩进行了地震反应分析。本分析的显著特点如下。首先，钢筋混凝土桥墩已建模使用有限元方法与固体网格。分析模型使用具有节点连通性的四面体单元生成，不仅在混凝土中，而且在钢筋中。此外，对混凝土中的断裂处理进行了分析。使用PDS-FEM，可以模拟由地震事件引起的混凝土中的适当断裂的系统。最终，建立了一个有限元模型，具有约2000万个单元的精细四面体网格。我们使用RIKEN高级计算科学研究所的K计算机计算地震反应分析，并将该结果与E-Defense的地震实验进行比较，以确认计算方法。
A seismic response analysis of a reinforced concrete (RC) pier has been undertaken using seismic waves recorded at the Takatori station during the southern Hyogo perfecture earthquake in 1995 in Japan. Distinguishing characteristics of this analysis are as follows. First, the RC pier has been modeled using the finite element method with a solid mesh. The analysis model has been generated using tetrahedral elements with node connectivity, not only in the concrete but also in the reinforcement steel. Also, an analysis has been undertaken on fracture treatments in the concrete. Using PDS-FEM, a system of suitable fractures in the concrete resulting from the seismic event can be simulated. Ultimately, a finite element model is established with a fine tetrahedron mesh with about 20 million elements. We calculate a seismic response analysis using the K computer at the RIKEN Advanced Institute for Computational Science, and compare that result with a seismic experiment in E-Defense to confirm the computational approach.