软母线连接电气设备地震响应定量分析  

Quantitative analysis of seismic response of electrical equipment connected by flexiblebus

作　　者：郑山锁[1] 汪靖 贺金川 张睿明 蔡永龙 ZHENG Shansuo;WANG Jing;HE Jinchuan;ZHANG Ruiming;CAI Yonglong(School of Civil Engineering, Xi′an University of Architecture and Technology, Xi′an 710055, China;Architectural Design and Research Institute, Xi′an University of Architecture and Technology, Xi′an 710055, China)

机构地区：[1]西安建筑科技大学,土木工程学院,陕西西安710055 [2]西安建筑科技大学建筑设计研究院,陕西西安710055

出　　处：《世界地震工程》2021年第1期144-151,共8页World Earthquake Engineering

基　　金：国家科技支撑计划(2013BAJ08B03);国家自然科学基金(51678475);陕西省重点研发计划(2017ZDXM-SF-093);陕西省教育厅产业化项目(18JC020)。

摘　　要：通过母线连接的电气设备与独立设备地震响应存在较大差异。为定量研究软母线连接体系对设备的地震响应,将软母线简化为悬索结构,建立耦联体系等高设备和单体设备的地震运动方程组,采用龙格-库塔方法计算得到广泛参数下的位移响应比,并通过基于后向消去法的多元回归分析对各关键参数的影响进行量化,得到软母线耦联等高设备地震位移响应比公式。通过与实际振动台试验数据对比验证了该响应比公式的准确性。研究结果可为实际电气设备及变电站的抗震可靠性分析提供参考。The seismic response of anequipment connected by flexiblebus is different from an independent equipment under earthquake.To quantitatively study the effect of the flexiblebus connection system to the equipment,the flexiblebuswas simplified as a cable,then the motion equations for analyzing the dynamic internation between the equipment and the cable was established and solved by using the Runge-Kutta method.The influence of each key parameter was quantified by using multiple regression analysis based on the backward elimination method to obtain the response ratio formula connected by flexible bus.The accuracy of the response ratio formula was verified by comparing with actual shaking table test data.The results obtained in this research can provide reference for seismic reliability analysis of actual electrical equipment and substations.

关 键 词：地震 耦连设备 软母线 悬索结构 响应比公式 

分 类 号：P315.9[天文地球—地震学]