某水闸结构抗震能力分析  

Analysis of Seismic Capacity of a Sluice Structure

作　　者：邹国华 周清勇 万亮亮 ZOU Guohua;ZHOU Qingyong;WAN Liangliang(Jiangxi Xiujiang Water Conservancy and Electric Power Design Co., Ltd., Poyang 331100, China;Jiangxi Academy of Water Sciences and Engineering, Nanchang 330029, China)

机构地区：[1]江西省修江水利电力勘察设计有限责任公司鄱阳分公司,江西鄱阳333100 [2]江西省水利科学院,南昌330029

出　　处：《广东水利水电》2021年第9期47-51,共5页Guangdong Water Resources and Hydropower

摘　　要：随机性是地震荷载最为重要的特性之一,强震区水闸工程在运行期间可能随时面临超抗震设计的荷载考验,因此需要充分了解工程结构的极限抗震能力。该文通过仿真某水闸工程静动态荷载作用的下的结构响应,并在此基础上通过放大地震荷载作用探索水闸结构的极限抗震能力。研究成果表明,地震动放大系数的提升对水闸损伤分布及破坏深度影响巨大,某水闸工程在地震荷载作用下的易损区域主要集中在启闭机房,交通桥和闸墩迎水面底部位置,经过计算,认定某水闸结构的极限抗震能力为2.8倍的Koyna波地震荷载。Randomness is one of the most important characteristics of seismic load.Sluice engineering in strong earthquake area may face the load test of super seismic design at any time during operation,so it is necessary to fully understand the ultimate seismic capacity of engineering structure.In this paper,the structural response of a sluice project under static and dynamic loads was simulated,and on this basis,the ultimate seismic capacity of the sluice structure was explored by amplifying the seismic load.The research results showed that the increase of seismic amplification factor has a considerable impact on the damage distribution and failure depth of the sluice.The vulnerable areas of a sluice project under seismic load were mainly concentrated in the hoist room,the traffic bridge and the bottom of the upstream water surface of the gate pier.After calculation,it was confirmed that the ultimate seismic capacity of a sluice structure was 2.8 times of the Koyna wave seismic load.

关 键 词：水闸工程 破坏模式 动力响应 极限抗震能力 

分 类 号：TV66[水利工程—水利水电工程] TV312