As a requirement for structural performance, normal usability and durability are also important.
Relatively speaking, the research on the normal performance and durability of precast concrete bridges is still somewhat insufficient, which may limit the application scope of precast concrete bridges.
Taking railway bridges as an example, due to the needs of train safety and passenger comfort, both conventional and high-speed railways have high requirements for the deformation and stiffness of bridge beams and piers.
Conducting research on the normal performance of precast concrete bridges for railway construction is an inevitable requirement for promoting the application of precast assembly technology in railway bridges.
As a critical infrastructure, the performance degradation mechanism and characteristics of precast assembly nodes, non-destructive testing methods, and corresponding reinforcement technologies are important issues that need to be addressed to ensure the durability of precast assembly concrete bridges in complex environments after a long service life.
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