Data from post-tensioned reinforced and fibre reinforced concrete beams measured by Distributed Optic Fibre Sensors. Force introduction, long-term and loading to failure stages.

The experimental program includes two main phases: a long-term monitoring phase, which evaluates time-dependent effects and post-tensioning losses, and a load-to-failure phase, where the beams are tested under a four-point bending configuration until failure. The primary data collected consists of strain measurements obtained using Distributed Optical Fibre Sensors (DOFS) installed along the length of each beam.

During the load-to-failure tests, the dataset also includes key information on the applied forces, bending moments, and the measured deflections under the jack loading points.