Static Performance of a Scaled Continuous Rigid-Frame Bridge Model Under Progressive Multi-Location Strengthening: Deflection, Strain, and Response-Line Evaluation
Continuous rigid-frame bridges experience web, bottom-slab, and deck-slab deterioration in service, yet strengthening locations are rarely compared within a single structure. A 3.68-m acrylic (polymethyl methacrylate, PMMA) model of a three-span rigid-frame bridge was tested at four static load levels with a three-axle...