由于最近公路和铁路上的库存工程激增,桥梁验收测试呈指数增长。由于使用了各种测量设备,这些测试结果经常被误解。渲染综合解释有问题。当结构对载荷的响应不确定时,调整测量方法也很困难。因此,重要的是观察可能的变形的最大可能范围。出于这个原因,本研究提出了一种在验收测试期间使用激光扫描仪进行桥梁无损测量的新方法。我们方法的主要优点是它能够在测试过程中观察结构的所有点,一个非常重要的能力是缺乏关于桥的状况的明确数据。为了显着提高扫描精度(高达0.5mm),使用有限数量的线性传感器进行测量(其精度高达0.1毫米)。为了获得最佳精度,我们执行了以下步骤:首先,我们将精度要求与数值工程相适应。为此,我们使用电位传感器来测量线性变形。接下来,我们从两个扫描位置进行了激光扫描测量。最后,我们过滤了所选横截面的数据,并将点建模为多项式偏转。所进行的测试证实,结构的响应与有限元模型预测的一样,并且该对象被批准使用。我们未来的测试将基于选择测量误差最小的结构,结果将使用全站仪进行比较,确保最高的服务质量,这可以在简单的步骤中重复。作为研究对象,我们提出了两个项目:第一没有适当的校准线性传感器和第二使用线性传感器,以呈现我们的实验的最高精度。
Owing to the recent proliferation of inventory works on roads and railways, bridge acceptance tests have increased exponentially. These tests\' results are often misinterpreted owing to the use of various measuring equipment types, rendering integrated interpretation problematic. It is also problematic that adjusting the measurement method is difficult when the structure\'s response to load is uncertain. Therefore, it is important to observe the largest possible range of possible deformations. For this reason, the present study suggests a novel approach to bridge non-destructive measurements using a laser scanner during acceptance testing. The main advantage of our method is the ability it affords to observe all points of the structure during testing, an ability that is extremely important is the absence of unambiguous data regarding the bridge\'s condition. To significantly increase the scanning accuracy (up to 0.5 mm), measurements from a limited number of linear sensors are used (whose accuracy is up to 0.1 mm). To achieve optimal accuracy, we performed the following steps: first, we adapted the precision requirements to the numerical project. For this purpose, we used potentiometric sensors to measure linear deformations. Next, we performed laser scanning measurements from two scan positions. Finally, we filtered the data for the selected cross-section and modelled the points into polynomial deflection. The performed tests confirmed that the structure\'s response was as predicted by the FEM model, and the object was approved for use. Our future tests will be based on the selection of a structure with minimal measurement errors, and the results will be compared using a total station, ensuring the highest possible quality of service, which can be repeated in simple steps. As study objects, we presented two items: the first without proper calibration on a linear sensor and the second using linear sensors to present the highest possible accuracy of our experiment.