钢管混凝土拱桥的应用和发展

Application and Development of Steel Tube Concrete Arch Bridge

桥面系强健性的重视在不断提高,然而强健性好的整体式和具有加劲纵梁的悬吊桥面系的应用还不够普及。钢管拱的架设方法仍以支架法、悬臂法和转体法3种为主,其中悬臂拼装法应用最多,适用跨径最大范围也最广。由于钢管混凝土具有承载力高,耐腐蚀,施工等一系列优点,在土木工程中的应用越来越广泛,尤其在桥梁工程中的应用也一样越来越引起人们的兴趣与重视。文章介绍了钢管混凝土的主要特点和钢管混凝土拱桥在我国的应用情况,提出现今存在的问题、未来的发展方向。

the importance of the bridge deck robustness has been improved, but the application of a strong integrated system and the suspension bridge with stiffening longitudinal beams are not popular enough. The method of erection of steel tube arch is still based on the three main methods: scaffold method, cantilever method and transition method, with the most application of cantilever assembly method and the maximum range of the maximum span. Because the concrete-filled steel tube has high bearing capacity, corrosion resistance, the construction and a series of advantages, applications in civil engineering more and more widely, especially its application in bridge engineering as well as more and more arouse people's interest and attention. This paper introduces the main characteristics of concrete-filled steel tube and the application of concrete-filled steel tubular arch bridge in China, and puts forward the present problems and future development direction.