What type of data is typically collected during static load testing of a bridge?

During static load testing of a bridge, the primary types of data collected are deflections, strains, and support reactions. Deflections, or displacements, are measured at various locations along the bridge span to determine how much the structure bends or sags under the applied load. Strain gauges are used to measure the deformation of the material at specific points, providing information about the stress levels within the structure. Support reactions, which are the forces exerted by the supports on the bridge, are also measured to verify the distribution of loads. This data is used to assess the bridge's structural behavior, validate analytical models, and determine its load-carrying capacity. Accurate measurements of these parameters are essential for evaluating the bridge's performance and ensuring its safety.