Why do we need to perform a load test with a monitoring system?
For the "Model Driven" monitoring approach, the implementation of a numerical finite element model (FEM) is necessary to accurately simulate deformations and initial stress state of the structure at the start of monitoring. Consequently, threshold conditions for each control parameter can be evaluated. The validation of theoretical assumptions made in the preliminary phase is achieved through proper calibration of the developed FE calculation model (Model Updating), which forms the basis for assessing future material degradation or potential failure during the operational life of the structure.
Where possible, before the start of the monitoring, a load test is conducted for each structure, both static and dynamic, specially designed and specified by Sacertis. During the test, rotation data (clinometric sensors - static test) is collected for multiple significant load conditions, and acceleration data (accelerometric sensors - dynamic test) is collected when heavy vehicles pass or brake. The entire process is monitored on-site by Sacertis personnel, who track the results in real-time using an application that can also be accessed via smartphone.