Abstract
Truss bridges are integral part of the transport network, mainly railroads and partially road bridges. The investigated bridge is located in the western part of Slovakia, and it crosses the Vah River. Density of traffic on the bridge is not so high, so the bridge is accessible for repeating dynamic measurements. Many load situations were simulated. Among of them also a case, where one diagonal member was excited by an electromagnetic exciter during the measurements and the influence on other diagonals have been also analyzed. Results of dynamic measurements are shown in this paper in comparison to analytical solution and to FEM calculations.
Highlights
Bridge structures represent an important part of the transport network
Vibration based non-destructive testing (NDT) methods belong to more used methods and one of them is based on natural frequency
The results show that the difference is presented between FEM calculation and the experimentally obtained data
Summary
Bridge structures represent an important part of the transport network. Generally, closures of bridges due to bad technical conditions can cause negative economic consequences. Vibration based NDT methods belong to more used methods and one of them is based on natural frequency. This work follows the laboratory experiment published by the authors [11] but a real structure was measured in this case. It connects the two sides of the Vah River canal, and it is described in [12] in more detail.
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