超高性能混凝土材料在桥梁工程中的应用

Application of Super Performance Concrete Materials in Bridge Engineering

与普通混凝土相比,超高性能混凝土(UHPC)材料拥有超强的力学性能、耐久性能以及抗火性能,是一种优良的桥梁建设材料。为满足现代化桥梁在复杂环境条件下的应用需求,基于UHPC材料的优异性能,从发展历程与材料特性出发,简述了UHPC在桥梁工程中的研究现状,总结了目前UHPC在桥梁工程中的应用方向,主要包括装配式桥梁、拱桥、人行斜拉桥以及正交异性钢桥面板等。最后,分析了目前UHPC在应用上存在的限制及问题,展望了UHPC在桥梁工程中的应用前景和进一步的研究方向。

Compared with ordinary concrete, ultra high performance concrete(UHPC) material has super mechanical properties,durability and fire resistance, and is an excellent bridge construction material. In order to meet the application requirements of modern bridges under complex environmental conditions, based on the excellent performance of UHPC materials, starting from the development history and material characteristics, this paper briefl y describes the research status of UHPC in bridge engineering,and summarizes the current application direction of UHPC in bridge engineering, mainly including fabricated bridges, arch bridges,pedestrian cable-stayed bridges, orthotropic steel deck plates, etc. Finally, the limitations and problems existing in the application of UHPC at present are analyzed, and the application prospect and further research direction of UHPC in bridge engineering are prospected.