我国已建成了规模居于世界前列的交通基础设施，但由于多种因素的影响，交通基础设施重大结构的安全保障问题面临着越来越严峻的挑战。本文分析了我国交通基础设施的发展现状，综述了国内外相关领域的研究进展，讨论了我国交通基础设施重大结构长寿命安全保障领域存在的主要问题及实现安全保障的技术途径，提出了实施安全保障计划应达到的目标以及需解决的关键问题。

China has built the largest scale traffic infrastructure in the world. Owing to many factors, the security of major structures is becoming extremely challenging. This paper analyzes the current development of China’s transportation infrastructure, reviews research progress in related fields at home and abroad, discusses ways to guarantee the safety of the major civil structures during long service lives, and proposes the implementation objectives of a safety plan and key issues to be resolved.