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为研究水电站厂房空心钢管混凝土组合柱抗震性能,以新疆某水电站钢管混凝土厂房组合柱结构构造形式为例,应用有限元软件ADINA建立了矩形实心及空心钢管混凝土厂房组合柱结构三维有限元模型,探讨了自振特性,并通过时程分析方法研究不同空心率模型在地震动输入情况下钢管和内部核心混凝土的动应力、动位移响应。结果表明,矩形空心钢管混凝土组合柱比实心钢管混凝土组合柱的抗震性能更好。
In order to study the seismic performance of the concrete-filled steel tubular column (CFST) column of a hydropower plant, taking the structural form of the CFST structure of a certain hydropower station in Xinjiang as an example, the finite element software ADINA was used to establish the three-dimensional finite element model of the rectangular and steel- The self-vibration characteristics of the concrete filled steel tube and the internal core concrete under dynamic ground motion were studied by means of time-history analysis. The results show that the seismic behavior of rectangular CFST columns is better than that of CFST columns.