Dynamic Response Evaluation of a Pc Cantilever Railway Bridge Using Closed-Form Solutions of Multi-Supported Beams

Key Points

• The central aim is to evaluate the dynamic response of a PC cantilever railway bridge during train passages using closed-form solutions.
• Proposes a method to express the restraining effect of integrated columns at mid-support with a rotational spring.
• Utilizes closed-form solutions for multi-supported beams previously developed.
• Compares calculated dynamic responses with actual measured results of a two-span PC cantilever railway bridge.
• Validation of the proposed method by comparing calculated results with measured data.
• Successfully demonstrates accurate evaluation of displacement responses during train passages by adjusting bending stiffness and spring constants.