摘要
采用一种简单的过渡单元模拟渡槽排架、拱结构和桩基以及其相互作用。基于梁单元与等参单元的位移协调条件,推导用等参单元节点位移表述梁单元节点位移的基本公式,用于考虑渡槽槽身、槽墩、拱圈、排架及桩基础的共同作用下的渡槽受力分析;将此方法应用于信江拱式渡槽,建立其三维有限元模型,分析无水、设计水位和满水三种工况下渡槽的受力特性,为渡槽配筋设计提供参考。
In this paper,a simple transition element is used to simulate aqueduct bent,arch structure,pile foundation and their interaction,then a finite element analysis method based on the interaction of beam and block is proposed to carry out the three-dimensional finite element analysis of aqueduct.Based on compatibility condition of displacement and deformation between the beam element and isoparametric element,the basic formula of beam element node expressed by isoparametric element node displacement is derived and used to analyze the stress of aqueduct under the joint action of aqueduct body,pier,arch ring,bent and pile foundation.The stress characteristics of aqueduct under three working conditions of no water,design water level and full water are analyzed,the result is provided reference for engineering design.
作者
张建华
李静
黄永涛
潘世洋
ZHANG Jianhua;LI Jing;HUANG Yongtao;PAN Shiyang(Jiangxi Provincial Design&Research Institute of Water Conservancy&Hydropower,Nanchang 330029,Jiangxi,China;College of Water Conservancy and Hydropower Engineering,Hohai University,Nanjing 210098,Jiangsu,China)
出处
《水利水电技术（中英文）》
北大核心
2021年第S02期168-172,共5页
Water Resources and Hydropower Engineering
基金
国家重点研发计划“水库大坝安全诊断与智慧管理关键技术与应用——大型复杂水工结构性能演化测试装备与智能诊断技术”(2018YFC0407102)
关键词
有限元法
渡槽
位移协调条件
梁单元
梁与块体联合作用
Finite Element Method
arch aqueduct
displacement compatibility condition
beam element
interaction between beam and block
