【摘要】 基于连通管原理,采用RS485通讯技术等手段,给出了一种桥梁挠度自动测量的方法。该方法具有实时、在线、远程、精确等特点,且不受人为因素和环境因素的影响。通过重庆石板坡长江大桥应用该方法测量挠度的案例证明,其测量结果的相对误差小于5%,表明该系统稳定可靠。这种测量方法能用于更多桥梁挠度的自动监测。更多还原

【Abstract】 A bridge deflection measurement method based on the communicating pipe principle is given by using RS485 communication technology. This method is characterized by its real-time measurement, on-line measurement, remote measurement, precise measurement and so on. And it is not affected by human factors and environmental factors. The application of the measurement method based on the communicating pipe principle in Shibanpo Yangtze River Bridge of Chongqing shows that the measurement system is stable and reliable, and the deflection relative error is less than 5%. And the method can be applied in automatic monitoring of more bridge deflection.更多还原