摘要
高地震烈度区水闸的抗震安全对保障水利工程在遭遇地震事件时的安全具有重要意义。水闸上部结构为抗震薄弱环节。北京市西郊蓄滞雨洪工程暗涵出口检修闸上部结构是北京为数不多的大型复杂结构,采用有限元软件Sap2000,考虑结构的真实性能,建立了三维有限元模型,施加自重和地震等外荷载,采用振型分解反应谱法,分析了水闸上部结构动力情况下的模态、强度以及刚度情况。采用材料力学法对主要混凝土构件进行抗震验算,对水闸上部结构的整体抗震安全性进行了综合评判,从而达到为相关类似工程的设计和安全鉴定积累经验的目的。
The anti-seismic safety of sluices in high seismic intensity areas is of great significance to ensure the safety of water conservancy projects in the event of earthquakes.The upper structures of the sluice working bridge,bent frame,etc.are the weak link in earthquake resistance.The viewing platform of the hidden culvert exit maintenance gate of the rainwater storage project in the western suburbs of Beijing is one of the few large and complex structures in Beijing.Using the finite element software Sap2000 and considering the real performance of the structure,a three-dimensional finite element model was established.Considering the influence of external loads such as self-weight and earthquake,the response spectrum method was used to analyze the modal,strength and stiffness of the sluice viewing platform under dynamic conditions.In addition,the seismic check calculation of the main concrete members is carried out by using the material mechanics section bearing capacity method,and the overall seismic safety of the sluice viewing platform is comprehensively evaluated,which can achieve the purpose of accumulating experience for the design and safety appraisal of related similar projects.
作者
易忠
赵妍
石海贤
王荣鲁
YI Zhong;ZHAO Yan;SHI Haixian;WANG Ronglu(Beijing City River and Lake Management,Beijing 100089,China;China Institute of Water Resources and Hydropower Research,Beijing 100038,China)
出处
《水利水电技术（中英文）》
北大核心
2022年第S02期125-130,共6页
Water Resources and Hydropower Engineering
基金
国家重点研发计划课题(2018YFC0407102)
引江济淮(河南段)工程科研项目(HNYJJH/JS/FWKY-2021005)
中国水科院基本科研业务费项目(SM0145B022021)
