基于ABAQUS子结构法对超限高层复杂节点的应力分析 |
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基于 ABAQUS 子结构法对超限高层复杂节点的应力分析
王雨生 ; 王曙光 ; 王滋军 ; 杜东升 ; 何静姿
【期刊名称】 《建筑科学》
【年 ( 卷 ), 期】 2012(028)009
【摘
要】 The force performance of the complex node in overrun high-rise structure is studied. Based on the substructure method of ABAQUS finite element software, the whole model and the fine model of the complex node are set up in one project. In the whole model, the fiber model is developed to beam-column elements, and the plastic damage model is used to shear wall. In the fine model of the complex node, the plastic damage model is used to solid elements, the metal double linear dynamic hardening model is used to steel and reinforcement. The complex nodes use two kinds of structure's form: steel reinforced concrete and steel tube's concrete. The displacement boundary conditions under the cases of small earthquakes, middle seismic and strong earthquakes of the complex node are exlraclcil from the whole model by the substructure method. It is the time to run the finite element analysis of the fine model of the complex node in ABAQUS and it will obtain the analysis result. The results show that the largest compressive strain of concrete has been more than standard limits under the strong earthquakes. Steel and reinforcement have already been in the inelastic phase, but not more than their limit strain, so the nodes are still in the secure stage. Which kind of node is more |
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