±800kV阀厅结构抗震设计研究
|
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。
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.
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.
引文
[1]魏文晖.设置F-Ved建筑结构空间协同工作控制研究[J].武汉理工大学学报,2002,24(6):51-54.
[2]康希良,赵鸿铁,薛建阳,等.悬吊质量结构减震性能的研究[J].兰州理工大学学报,2006,32(4):112-116.
[3]Anh N D,Matsuhisa H,Viet L D,et al.Vibration Control of an Inverted Pendulum Type Structure by Passive Mass-spring Pendulum Dynamic Vibration Absorber[J].Journal of Sound and Vibration,2007,307(1):187-201.
[4]GB50011—2001,建筑抗震设计规范[S].
[5]李宏男.摆结构体系减震性能研究[J].工程力学,1996,13(3):123-129.
[6]魏文晖,周兴乐,胡孝平.换流站阀厅结构地震效应动力分析[J].建筑结构2010,40(3):75-77.
[2]康希良,赵鸿铁,薛建阳,等.悬吊质量结构减震性能的研究[J].兰州理工大学学报,2006,32(4):112-116.
[3]Anh N D,Matsuhisa H,Viet L D,et al.Vibration Control of an Inverted Pendulum Type Structure by Passive Mass-spring Pendulum Dynamic Vibration Absorber[J].Journal of Sound and Vibration,2007,307(1):187-201.
[4]GB50011—2001,建筑抗震设计规范[S].
[5]李宏男.摆结构体系减震性能研究[J].工程力学,1996,13(3):123-129.
[6]魏文晖,周兴乐,胡孝平.换流站阀厅结构地震效应动力分析[J].建筑结构2010,40(3):75-77.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心