大型变压器的基础隔震摩擦摆系统理论研究

发布时间：2018-08-19 08:53

【摘要】：为减轻大型变压器等变电设备的地震震害,建议采用摩擦摆隔震系统对大型变压器进行地震防护,开展相关的理论研究。该文阐述了摩擦摆隔震原理和影响摩擦摆摩擦性能的主要因素,综述了现有的摩擦摆系统力学模型和其性能,分析了在地震作用下摩擦摆隔震系统的地震响应,研究了摩擦摆隔震系统用于大型变压器等电力设备基础隔震的承载能力特性、导振性能、隔震性能、耗能特性和自复位性能。研究表明:摩擦摆隔震系统的隔震周期与隔震结构质量无直接关系,这种特性特别适用轻质量的变电站设备基础隔震;滑移面的滑移速度、压应力、温度都影响摩擦摆的摩擦性能;多维地震作用对摩擦摆隔震性能影响较大;摩擦摆隔震系统具有可靠的承载能力、隔震性能、耗能能力、导振性能和自复位能力。因此,摩擦摆系统用于大型电力变压器等变电站设备基础隔震是合适可行的。
[Abstract]:In order to reduce the seismic damage of large transformer and other transformer equipments, it is suggested to adopt friction pendulum isolation system for seismic protection of large transformer and carry out relevant theoretical research. The seismic response of the friction pendulum isolation system under earthquake is studied. The load-carrying capacity, vibration conduction, isolation, energy dissipation and self-reset performance of the friction pendulum isolation system used for base isolation of large transformer and other electric power equipment are studied. The results show that the isolation period of the friction pendulum isolation system is not directly related to the quality of the isolation structure. This characteristic is especially suitable for base isolation of light-weight substation equipment; sliding surface velocity, compressive stress and temperature all affect the friction performance of friction pendulum; multi-dimensional seismic action has a greater impact on the isolation performance of friction pendulum; friction pendulum isolation system has reliable bearing capacity, isolation performance, energy dissipation capacity, vibration conduction performance and self-reset. Therefore, the friction pendulum system is suitable and feasible for base isolation of large power transformer and other substation equipment.
【作者单位】：同济大学建筑工程系;
【基金】：国家电网公司科技项目(SGTYHT/14-JS-188) 教育部霍英东教育基金会优选资助课题(114021)~~
【分类号】：TU352.12

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