摘要
为了改善振动台控制精度问题,获取准确的结构响应,首先就振动台特性对结构响应的影响进行了分析,而后基于振动台输入输出响应,提出了实测结构响应修正方法.试验结果证明:修正方法较好地补偿了振动台误差的影响,修正后的试件响应能代表试件在期望地震动作用下的试件真实响应,因此,该修正方法能提高结构响应精度.
Shaking table test is the main testing method for engineering structures research,which plays an important role in the research for seismic performance of structures. In order to improve control accuracy problems of shaking tables,and to get the authentic structural response,firstly,the influence of the shaking table dynamic on structural response was analyzed. And then a correction measure was developed based on the input and output of the shaking table. Correction method of better compensation of the influence of vibration table error was provided. And specimen corrected response can be better representative specimen's response at the desired ground motions. Finally, the performance of the developed method was verified experimentally.
出处
《北京工业大学学报》
CAS
CSCD
北大核心
2017年第1期118-126,共9页
Journal of Beijing University of Technology
基金
教育部留学归国资助项目(Q0004014201501)
关键词
振动台试验
再现误差
结构响应
试件与台面相互作用
修正方法
shaking table test
reproduction errors
specimen response
specimen-table interaction
correction measures