关键词: 桥梁工程, 连续刚构桥, 桥面铺装, 耐久性, 有限元分析

Abstract: Through the analysis and summary of research status and development trend of deck pavement technology of long-span continuous rigid frame bridge deck pavement at home and abroad, the influence of factors such as design flaw, constructional quality and traffic load on the durability of continuous rigid frame bridge deck pavement was studied. Aiming at the mechanism of the deck pavement disease, the cause of disease, the classification method of disease and the structure deficiency in the deck pavement design were comprehensively analyzed. The analysis results show that: the durability of continuous rigid frame bridge deck pavement not only depends on the strength and fatigue performance of pavement material, but also on the pavement structure, the material and the adaptability of the bridge deck. The integrated design of pavement and bridge deck, construction quality and craft are the guarantee of deck pavement durability. Besides, the finite element calculation of continuous rigid frame bridge deck pavement still has some imperfection and unreasonableness in current literatures. In order to provide more credible data for the future engineering practice and the relevant standard, the proposed finite element model and its boundary conditions should be studied and improved.

Key words: bridge engineering, continuous rigid frame bridge, deck pavement, durability, finite element analysis