Monitoring Data of the openLAB Research Bridge – Load Test on PE 2.1

Abstract

Between May 5 and 7, 2025, extensive experiments were carried out on the openLAB research bridge. The test program was structured as follows: • Day 1: Static and dynamic measurements in the reference state • Day 2: Loading of the bridge using hydraulic jacks up to the ultimate limit state (yielding of prestressing steel) • Day 3: Local damage of prestressing tendons (cutting wires at several locations) The present dataset contains force and displacement measurements from the load test conducted on Day 2. The load was applied locally to precast element (PE) 2.1 (Field 2, PE axis 1) using two hydraulic jacks and increased up to 400 kN. Displacements were measured at five different positions along PE axis 1. Details on the measurement setup can be found in the attached file readme.txt. Additional information on the project, the bridge and reference-phase measurements is available under the following references: https://doi.org/10.1016/j.dib.2025.111624 https://onlinelibrary.wiley.com/doi/10.1002/best.202300094 Herbers, M., Richter, B., Jan-Hauke, B., Al-Zuriqat, T., Smarsly, K., & Marx, S. (2024, November). openLAB – A large-scale demonstrator for advancing digital twin developments of bridges. In 2024 fib Symposium (pp. 2057–2067). (see attachment) Value of the data: • Validation and calibration of finite element models (FEM) • Comparison with geodetic measurement methods (e.g., total station, drone survey) • Basis for interpreting data from additional monitoring systems (e.g., distributed fiber optic sensing, acceleration measurements, acoustic emission monitoring, etc.) The provided Python script enables data import, post-processing, and visualization of the measurement data (see example figures).