设计了一种新型预应力锚夹具试验台。该试验台基于液压加载系统和偏心轮传动机构实现了疲劳载荷的施加,采用振弦式传感器和电感调频式位移传感器采集载荷和预应力筋变形的实时数据信息。通过数据采集显示仪记录和保存该数据信息,并传输到上位计算机中进行数据分析和处理,并最终显示数据分析结果。与现有试验台对比显示,该试验台所测得数据的准确率更高。 A new prestressed anchor fixture test bench was designed. The test bench based on hydraulic loading system and eccentric drive mechanism to achieve the application of fatigue load, the use of vibrating wire sensors and inductive frequency modulation displacement sensor to collect real-time data of load and prestressing tendon deformation. Through the data acquisition and display instrument records and save the data information, and transmitted to the host computer for data analysis and processing, and ultimately display data analysis results. Compared with the existing test bench, the data obtained from the test bench is more accurate.