地震模拟振动台技术在中国的发展

Developments of shaking table technology in China

地震模拟振动台是开展抗震研究的重要试验设备,国内外发展迅速。对国内振动台的发展历史、建设情况、性能指标、控制算法、试验技术研究进行了调研、总结、对比和分析评述,给出了国内典型振动台的台面尺寸、承载力、工作频率和最大加速度等功能指标,总结了振动台的建设现状和发展趋势,对比分析了不同控制算法的优缺点;对国内典型的振动台试验、试验仿真材料进行归纳对比,给出国内已完成振动台试验的结构类型、缩尺比例、模型材料选择;对于振动台的大型化、台阵化、全数字化和网络化控制的发展趋势进行分析阐述,给出高性能振动台的发展方向、技术特征对比和相关研究现状。可供国内外振动台的设计选型、控制技术和试验技术研究参考和借鉴。

Shaking table is an indispensible test equipment for seismic study and is experiencing rapid developments all over the world. The development history, tendency, construction, performance, control algorithms and relevant experimental techniques of shaking tables in China were then reviewed and compared. Some performance indices including typical table size,bearing capacity,frequency range and maximum acceleration were summarized for typical shaking tables in China,and a comparative analysis on existing control algorithms was also carried out. In addition,the structure type,scale proportion,model material of shaking tables built in China were introduced. Furthermore,the development trends with the characteristics of large-scale,multiple array,digital and network control were described. In the end,the development direction and technical comparison of high-performance shaking table were analyzed,providing a reference for type selection,control and experimental research for shaking tables.