摘要
基于东南大学组装4 m×6 m地震模拟振动台系统,提出了系统连接板刚度、液压油柱共振以及系统控制策略三个方面对系统精度的影响。通过试验具体给出了由于系统连接板刚度的原因带入干扰频率14 Hz、由于液压油柱共振原因带入频率为20 Hz的干扰因素,还有因为控制方法的不同带来控制精度的较大差别。最后建议进行振动台试验时必须要综合考虑这些方面的影响因素,才能合理地对结构性能进行评价。
Three aspects of the system accuracy including of the interconnect stiffness,hydraulic oil column resonance and control strategy were proposed based on Southeast University assembly 4m × 6m shaking table system.Frequency of 14Hz interference because of the system interconnect stiffness and frequency of 20Hz interference because of hydraulic oil column resonance were given by test,and the greater control precision difference was also given because of the different control methods.Shaking table tests was suggested to take into account of these factors reasonably in order to evaluate the performance of the structure better at last.
出处
《工业建筑》
CSCD
北大核心
2010年第S1期326-328,333,共4页
Industrial Construction
关键词
振动台
抗震性能
试验方法
shaking table
seismic performance
experimental methodology
