瓷柱型高耸电气设备多重环式调谐质量阻尼减震技术研究

项目名称： 瓷柱型高耸电气设备多重环式调谐质量阻尼减震技术研究

项目编号： No.51478442

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 建筑环境与结构工程学科

项目作者： 戴君武

作者单位： 中国地震局工程力学研究所

项目金额： 87万元

中文摘要： 国内外震害表明，电力设备系统中广泛应用的瓷柱型高耸电气设备在强烈地震中破坏严重。发展既能够显著降低该类设备结构地震反应内力、又可有效控制其反应位移的阻尼减震技术，是解决其抗震问题的重要途径和迫切需求，对保证电力系统地震安全具有重要意义。 本项目将以如何采用多重环式调谐质量阻尼减震技术来显著提高瓷柱型高耸电气设备抗震性能为研究目标，分别针对具有典型代表性的直立式、倾斜式和组合式三类瓷柱型高耸电气设备，系统总结既有抗震试验成果以及震害调查数据，深入研究揭示瓷柱型高耸电气设备地震破坏机理；兼顾风振反应控制，发展适用于具有不同结构特点的瓷柱型高耸电气设备的多重环式调谐质量阻尼减震技术；综合考虑裹冰荷载的影响规律、连接导线的牵连耦合以及下部支撑结构对地震动的放大作用，研究提出瓷柱型高耸电气设备多重环式调谐质量阻尼器设置优化设计准则，建立瓷柱型高耸电气设备多重环式调谐质量阻尼减震设计理论。

中文关键词： 瓷柱型高耸电气设备；多重环式；调谐质量；阻尼；减震

英文摘要： Earthquake damage investigation shows that the widely used High-Rise Porcelain Cylindrical Electrical Equipment (HRPCEE) in power supply system is very vulnerable and used to be severely damaged in large earthquake events. For solving this problem, it's very urgent and also an important approach to develop damping techiniques who not only can obviously reduce the seismic inner-force response but also can control the displacement response of the HRPCEE structure. It would be meaningful for protecting the safety of the power system in future earthquakes. For enhancing the seismic resistant capacity of HRPCEE structure, this study will mainly aim on how to develop a kind of shock absorption technique by using Multiple Ring Tuned Mass Damper (MRTMD). Choosing the three types of typical HRPCEE structure (Erecting, Tilting and Combined type) as the object of study, the related existing seismic test results and field investigation data about the earthquake damages will be collected and sorted, the seismic damage mechanism of the HRPCEE structure will be studied and disclosed systematically. Taking the wind vibration control into account, the MRTMD suitable for reducing the earthquake response of the HRPCEE with different structure type will be developed. As well, the ice load, the coupling effect caused by the connected wires and the amplifying effect of different types of supporting structure to the strong ground motion, will also be studied thoroughly for developing the optimum principle of the MRTMD design. Finally, a reasonable design protocol for the MRTMD suitable for the three type of HRPCEE will be established.

英文关键词： high-rise porcelaine cylindrical electrical equipment;multiple ring;tuned mass;damping;shock absorption