特高压直流穿墙套管–阀厅体系地震响应及抗震性能提升措施  

Seismic Responses and Retrofitting Countermeasures for UHVDC Wall Bushing-valve Hall System

作　　者：何畅[1] 谢强[1] 杨振宇[1] 卓然[2] 王晓游 

机构地区：[1]同济大学建筑工程系,上海200092 [2]中国南方电网科学研究院,广州510063

出　　处：《高电压技术》2017年第10期3215-3223,共9页High Voltage Engineering

基　　金：教育部霍英东教育基金会优选资助课题(114021)~~

摘　　要：为评估阀厅对特高压(UHV)直流穿墙套管地震响应的影响,以及对穿墙套管–阀厅体系抗震性能进行优化,建立了特高压直流穿墙套管–阀厅体系的有限元模型,获取了体系在地震激励下的响应特征;建立了穿墙套管–阀厅体系的振动力学模型,分析了不同振动分量对穿墙套管地震响应的影响。结果表明:阀厅结构对穿墙套管地震响应有较大的放大作用,阀厅山墙侧向振动对套管地震响应的影响显著。对阀厅结构进行了加固后,套管地震响应减小。对阀厅侧向刚度的增强能显著改善特高压穿墙套管–阀厅体系的抗震性能。To evaluate the dynamic influence of valve hall on ultra-high voltage（UHV） wall bushings and to optimize the seismic performances of wall bushing-valve hall system,we established a finite element model of the UHV wall bushing-valve hall system,and obtained the seismic responses characteristics of the system.Moreover,we established a vibration mechanism model of wall bushing-valve hall system,and studied the influences of different vibration components on wall bushing seismic responses.The results indicate that the valve hall has an amplification effects on the seismic responses of the bushing and the lateral vibration of gable wall of the hall has a remarkable influence on the seismic responses of wall bushing.After the retrofit of valve hall structure,the seismic responses of wall bushing will decrease,and increasing the lateral stiffness of the gable wall can improve the seismic performances of UHV wall bushing-valve hall systems.

关 键 词：特高压直流 穿墙套管 阀厅 地震响应 加固措施 

分 类 号：TM216.5[一般工业技术—材料科学与工程]