DEVELOPMENT OF TRAFFIC LOAD AUTO MEASURING SYSTEM USED BY RUBBER OPTICAL CABLE

可用于评估桥梁和道路路面混凝土板钢梁疲劳安全性的交通数据有限。原因是交通数据的获取需要大量的时间和人力，因此涉及的成本很大。在过去的几年里，作者一直在努力开发一种便携式系统，该系统可以监测交通流量，并记录车辆在道路上任何一点的车轮位置和通过时间。该系统还具有处理数据的能力，并提供轴重、车速、车辆类型和车轮横向分布的直方图，允许以低成本收集不同时间的大量交通数据。开发的系统由以下三个子系统组成：(1)交通流量测量系统-该子系统已基本完成。利用该系统，在多个巷道点位进行了多次观测。许多交通数据软件都是从多个角度开发出来的。(2)轴重测量系统-经验证，本系统在工具闸门上使用轴重测量仪，实现了自动测量。(3)车辆重量测量系统-该系统由橡胶光缆橡胶传感器、数据记录仪和个人计算机组成。传感器和记录仪已经完成。利用该系统对道路进行了现场观测，成功研制了橡胶光缆交通荷载自动测量系统。

The traffic data available which to evaluate the fatigue safety of concrete slabs and steel girder of bridges and pavement of roadways is limited. The reason is that the acquisition of the traffic data requires a lot of time and and manpower,and therefore involves a large cost. Over the past few years, the authors have been trying to develop a portable system which monitors the traffic flow and records wheel position and passing times of vehicles at any point on a roadway. This also has the ability to process the data and provide histograms of axle weight, speed and type of vehicles and lateral distribution of wheels, and allows the collecting of a large amount traffic data in various times with low cost.The developed system has consisted of three sub-systems as follows, (1) Traffic flow measuring system ---- This sub-system has almost been completed. Using this system, many observations have been done at many point of roadways. Many softwares of traffic data have been developed from several point of view. (2) Axle weight measuring system ---- It is confirmed that this sub-system which used the axle weight meter in tool gates has been able to measure automatically. (3) Vehicle weight measuring system ---- This system has consisted of rubber sensors with rubber optical cables, data logger and personal computer. The sensors and logger have completed. Using this system, some observations have been done at roadways.The traffic load auto measuring system used with rubber optical cables has been succeeded in developing.