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对悬吊有质量为8 t阀塔的±800 kV钢-混凝土组合阀厅结构进行了地震作用下动力时程分析。采用ANSYS有限元通用软件,建立了钢-钢筋混凝土框架剪力墙阀厅结构的有限元模型和钢-钢筋混凝土剪力墙阀厅结构有限元模型;对挂阀前后框架剪力墙阀厅结构在4种地震波作用下进行动力时程分析和比较;对2种挂阀后阀厅结构在恒载和活载作用下、纵向水平拟静力地震作用和横向水平拟静力作用下进行静力分析等,并给出关键构件的内力值。在以上研究的基础上,探讨了阀厅结构中吊阀的晃动对结构地震响应的影响、构件内力的变化和用反应谱法计算地震作用内力时采用的修正措施等。
The dynamic time history analysis of ± 800 kV steel-concrete composite valve hall structure suspended by a mass valve of 8 t was carried out under earthquake action. The finite element model of the steel-reinforced concrete frame shear wall valve hall structure and the finite element model of the steel-reinforced concrete shear wall valve hall structure are established by using ANSYS finite element general software. Under the action of four kinds of seismic waves, the dynamic time history analysis and comparison were carried out. Under the action of dead load and live load, the structure of the two kinds of valve structures after the valve hanging was subjected to static force under longitudinal quasi-static earthquake action and lateral horizontal quasi-static force Analysis, etc., and gives the key components of the internal force value. Based on the above research, the influence of the swinging of the valve in the valve hall on the seismic response of the structure, the change of the internal force of the component and the corrective measures when calculating the internal force of the earthquake by the response spectrum method are discussed.