Advances in Pavement Technology Types and Structural Systems for Orthotropic Steel Bridge Decks

Orthotropic steel bridge deck pavement is a critical technology ensuring the durability of orthotropic steel bridge decks. This paper analyzes core characteristics of four mainstream systems and systematically reviews research advances and engineering practices in steel bridge deck pavement: Guss Asphalt Mixture, Epoxy Asphalt Mixture, Stone Mastic Asphalt, and Epoxy Resin System. Future work must address bottlenecks in quantifying extreme climate-heavy load coupled damage, mitigating stress concentrations, and assessing long-term performance of low-carbon materials. Integrating intelligent monitoring technologies will drive pavement systems toward high-toughness ultrathin configurations and full-lifecycle reliability upgrades. This contributes to green pavement development trends under carbon neutrality goals and provides theoretical support for enhancing long-term service capacity of major infrastructure.