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考虑新旧闸室接触的水闸静力学分析

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根据某中型水闸的结构特点,建立三维有限元模型.考虑新闸、旧闸之间接触的非线性关系,计算分析了不同工况下闸室的应力、变形的分布规律.在此基础上还进行了稳定计算,验算分析了水闸结构的安全稳定性.结果表明:工况一和工况二两种不同调度运行情况下的最大拉应力分别为1.13 MPa和1.01 MPa,最大压应力分别为3.72 MPa和3.63 MPa,低于C20混凝土允许的抗压抗拉强度值,稳定计算中闸室的抗滑稳定安全系数、不均匀系数均满足规范要求.
Static analysis of water gates considering the contact between new and old gate chambers
A three-dimensional finite element model was established according to the structural characteristics of a middle-scale sluice.Taking into account the non-linear relationship of the contact between new and old gate cham-bers,the distribution law of stress and deformation of gate chambers under different operating conditions was calcu-lated and analyzed,based on which the stability calculation was conducted to examine structural safety and stability of sluice.The results of analysis demonstrate that under two regulation conditions,the maximum tensile stress are 1.13MPa and 1.01MPa,and the maximum compressive stress are 3.72MPa and 3.63MPa respectively,less than the permissible compressive and tensile strength values of C20 concrete;the safety factor against sliding and the unifor-mity coefficient of gate chambers both meet the requirements of specifications.

water gatefinite element methodstress,displacement

蔡靖、吴舅槐

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广东省水利水电科学研究院,广州 510630

水闸 有限元法 应力 位移

2024

广西水利水电
广西水利电力勘测设计研究院

广西水利水电

影响因子:0.135
ISSN:1003-1510
年,卷(期):2024.(2)