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Strategic Study of CAE >> 2019, Volume 21, Issue 3 doi: 10.15302/J-SSCAE-2019.03.014

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

1. Southeast University, Nanjing 211189, China;

2. Design & Research Institute of Wuhan Iron & Steel Group, Wuhan 430080, China

Funding project:中国工程院咨询项目“海洋桥梁工程技术发展战略研究”(2016-XZ-13) Received: 2019-05-09 Revised: 2019-05-20

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Abstract

This paper focuses on the requirements of marine long-span bridges for durability and light-weight. It summarizes the research status and development tendency of high-performance steel, high-performance concrete, and fiber-reinforced polymer (FRP), after a thorough investigation on light-weight, high-strength, and durable materials. The application technologies of the aforementioned materials to key zones of bridges are introduced, and the strategic recommendations for the development of light-weight, highstrength, and durable structural materials in marine bridge engineering are proposed. The research results contribute to satisfying the requirements of marine bridge engineering for high performance, long life, and light weight, and overcoming the challenges in durability and span of long-span bridges in marine environment.

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