景洪水电站升船机塔楼结构地震响应分析
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摘要
以景洪水电站升船机塔楼结构为工程背景,采用大型有限元程序ANSYS为数值模拟工具,当浮筒里充满水时〔H1〕,计算分析得到塔楼结构的自振特性,在此基础上,通过振型反应谱法,分别计算了塔楼在水平和竖向地震作用下的动位移、动应力和加速度谱值。最后,用Tecplot软件显示ANSYS得到的动力与静力叠加结果等值线图,即塔楼结构在地震工况下的变形与应力,为结构抗震设计提供了重要的依据。
Taking the ship lifter tower structure of Jinghong Hydroelectric Power Project as the object of study,the paper firstly obtained the self-oscillation characteristics of the tower structure through calculation and analysis made at the time when the float chamber was filled with water(H1) using the finite element program ANSYS for numerical simulation,then based on which calculated spectrum values of dynamic displacement,dynamic stress and acceleration of the tower structure under horizontal and vertical seismic effects using the vibration mode response spectrum method respectively and finally used software Tecplot to display the isograms of dynamic and static superposition results,which were obtained by ANSYS,i.e.strain and stress of the tower structure under earthquake conditions.The paper provides important basis for aseismatic design of the structure.
Taking the ship lifter tower structure of Jinghong Hydroelectric Power Project as the object of study,the paper firstly obtained the self-oscillation characteristics of the tower structure through calculation and analysis made at the time when the float chamber was filled with water(H1) using the finite element program ANSYS for numerical simulation,then based on which calculated spectrum values of dynamic displacement,dynamic stress and acceleration of the tower structure under horizontal and vertical seismic effects using the vibration mode response spectrum method respectively and finally used software Tecplot to display the isograms of dynamic and static superposition results,which were obtained by ANSYS,i.e.strain and stress of the tower structure under earthquake conditions.The paper provides important basis for aseismatic design of the structure.
引文
(1)宫必宁.景洪水电站升船机塔楼结构动力分析(J).东南大学学报(自然科学版),2001,31(5A).
(2)段进,倪栋,等.ANSYS10.0结构分析从入门到精通(M).北京:北京科海电子出版社,2006.
(3)赵光恒.结构动力学(M).北京:中国水利水电出版社,1996.
(4)邓良军,张杰.金安桥水电站碾压混凝土重力坝抗震研究(A).第二届全国防震减灾工程学术研讨会论文集(C).中国土木工程学会,2005.
(5)叶爱君,华新.灌河大桥地震响应分析及抗震设计(A).中国公路学会桥梁和结构工程分会2005年全国桥梁学术会议论文集(C).中国公路学会,2005.
(6)刘晶波,李征宇.高层大跨度连接体结构的动力计算和抗震分析(A).第八届全国振动理论及应用学术会议论文集(C).中国振动工程学会,2003.
(2)段进,倪栋,等.ANSYS10.0结构分析从入门到精通(M).北京:北京科海电子出版社,2006.
(3)赵光恒.结构动力学(M).北京:中国水利水电出版社,1996.
(4)邓良军,张杰.金安桥水电站碾压混凝土重力坝抗震研究(A).第二届全国防震减灾工程学术研讨会论文集(C).中国土木工程学会,2005.
(5)叶爱君,华新.灌河大桥地震响应分析及抗震设计(A).中国公路学会桥梁和结构工程分会2005年全国桥梁学术会议论文集(C).中国公路学会,2005.
(6)刘晶波,李征宇.高层大跨度连接体结构的动力计算和抗震分析(A).第八届全国振动理论及应用学术会议论文集(C).中国振动工程学会,2003.
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