有关城市中小型桥梁结构的耐久性设计分析

改革开放以来，随着我国经济的飞速发展，基础设施建设不断完善，城市中小型桥梁施工项目也在不断增多。桥梁工程是实现道（公）路跨越河道、交通立交的重要城市交通设施，其结构比普通的道路工程更加复杂，重要性也高于道路。因此，这就需要相关人员必须在设计、施工中充分认识到混凝土结构耐久性的重要性，进行最优化设计。本文主要是对我国城市中小型桥梁结构的耐久性设计情况进行探讨分析，并提出了自己的相应观点。

Analysis of the Durability Design of the Small and Medium-sized Bridges Structure in Cities

Since the reform and opening up, along with the rapid development of China＇s economy, and constantly improvement of the infrastructure construction ,the small and medium-sized bridge construction project in cities are growing.Bridge engineering is an important urban transport facilities to achieve （public） road across the river and the transport interchange.Its structure is more complex than ordinary road works,and its importance is also higher than ordinary road.Therefore, it requires that the relevant personnel must be fully aware of the importance of the durability of concrete structures in the process of the design and construction ,and then makes optimized design.This paper explores and analyzes the durability design of our cities small and medium-sized bridge structure and puts forward some corresponding points.