摘要
为研究大型双槽渡槽的动力特性,采用通用有限元软件SAP2000对南水北调中线工程中的老张庄渡槽整体结构建立空间有限元分析模型,采用模态分析方法分析计算了渡槽墩体前12阶的自振频率与振动模态,得到了渡槽在3m设计水深和无水2种工况下的振动特性,整个过程和结果均达到了预期效果,为大型双槽渡槽结构的抗震分析提供了参考依据。
In order to study dynamic characteristics of the large-scale double-channel aqueduct,the spatial finite element analysis model of the Laozhangzhuang aqueduct in middle route of the South-to-North Water Diversion Project is established with software SAP2000.The modal analysis method is applied to calculate the frequency and modal of the first 12 steps for two cases,which includes conditions of design depth of three meters and without water.The whole process and the results achieve the desired effect,which provides reference basis for the large-scale double-channel aqueduct seismic analysis.
出处
《水电能源科学》
北大核心
2011年第3期74-76,共3页
Water Resources and Power
基金
河南省自然科学基金资助项目(82300440070)
河南省科技攻关基金资助项目(0624450009)
关键词
渡槽
结构动力
自振频率
模态
有限元分析
aqueduct
structure dynamics
natural frequency
modal
finite element analysis
