摘要
通过ABAQUS建立羊曲进水塔的三维有限元模型,分析进水塔的抗震损伤。在考虑进水塔塔体材料非线性的基础上,探讨进水塔与基岩之间的相互作用对塔体的地震动力响应。结果表明:在地震荷载作用下,塔体损伤主要集中在塔体腰部两种不同强度混凝土的连接处。与不考虑接触非线性相比,考虑接触非线性情况下的塔顶最大相对位移幅值增加了31.12%,塔体损伤区域较大,损伤耗散能增加34.06%,进水塔模型更加偏不安全。
The three-dimensional finite element model of Yangqu intake tower is established based on ABAQUS to analyze the seismic damage of intake tower.On the basis of considering the nonlinear of tower body material,the seismic dynamic response of the tower under the interaction between intake tower and bedrock is discussed.The results show that under seismic load,the damage of tower body is mainly concentrated in the connection of two different strength concretes at the waist of tower body.Compared with that without considering the contact nonlinearity,the maximum relative displacement amplitude of tower top considering the contact nonlinearity increases by 31.12%,the damage area of tower body is larger,the damage dissipation energy increases by 34.06%,and the intake tower model is more unsafe.
作者
张云涛
段锡志
郭书亮
郑晓东
ZHANG Yuntao;DUAN Xizhi;GUO Shuliang;ZHENG Xiaodong(Hebei Province Water Conservancy Engineering Bureau Group Co.,Ltd.,Shijiazhuang 050021,Hebei,China;College of Water Conservancy and Hydropower,Hebei University of Engineering,Handan 056038,Hebei,China;Chongqing Vocational and Technical College of Industry and Trade,Chongqing 408000,China)
出处
《水力发电》
CAS
2022年第4期58-64,共7页
Water Power
基金
重庆工贸职业技术院项目(ZR202014)
重庆市教委科学技术研究计划项目(KJQN202103602)
博士后专项基金项目(SJ200100105)
国家重点实验室项目(2019KFKT-15)
河北省高等学校科学技术研究项目资助(BJ2019023)
河北省自然科学基金(E2020402087)
邯郸市科技局项目(21422051264)。
关键词
进水塔
基岩
相互作用
接触非线性
时程分析
地震损伤分析
损伤耗散能
intake tower
bedrock
interaction
contact nonlinearity
time-procedure analysis
seismic damage analysis
damage dissipation energy
