Status Quo and Development Trend of Light-Weight, High-Strength, and Durable Structural Materials Applied in Marine Bridge Engineering

This study focuses on the requirements of long-span marine bridges in achieving durability and a light weight. According to a thorough investigation of lightweight, high-strength, and durable materials, the research status and development tendency of high-performance steel, high-performance concrete, and fiber-reinforced polymer are examined. The application technologies of such materials for the key zones of bridges are introduced, and strategic recommendations are proposed for the development of lightweight, high-strength, and durable structural materials in marine bridge engineering. The research results will help satisfy the requirements of marine bridge engineering in terms of high performance, long life, and light weight, and improve the durability and span of long-span bridges in marine environments.