【摘要】 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。更多还原

【Abstract】 The earthquake response of steel-concrete composite structure of ±800 kV valve hall suspending a 8 ton valve column is analysed by the dynamic time history method.The finite element models of steel column-reinforced concrete frame-shear wall structure of valve hall and steel column-reinforced concrete shear wall structure of valve hall are built in the ANSYS.And then the dynamic time history analysis and comparison of frame-shear wall structure of valve hall under earthquake wave are performed.Not only under the action of dead load and live load,but also the pseudo static earthquake of longitudinal horizontal and transverse horizontal,a static analysis of two valve halls with suspended valve is executed too.According to the results,the affection of earthquake response to suspended valve in the valve hall and the change of the force in the component are discussed.Some modified measures about calculating the force of earthquake action by the response spectrum method are presented too.更多还原