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近年来,随着我国交通运输事业展现出蓬勃发展的势头,对于桥梁的跨度和性能追求越来越高,变截面刚构连续箱梁桥以其形式简洁、外形匀称、适应性强等优点得到了广泛的推广。目前,混凝土刚构连续箱梁桥有进一步向更大跨度和更高墩高发展的趋势。上部结构通过采用高强、高性能、轻质混凝土和先进预应力体系,进一步减轻结构自重,增大跨越能力。介绍了对悬浇梁技术的评价方式和具体施工技术。
In recent years, with the booming momentum of China’s transportation and transportation, the pursuit of bridge span and performance is getting higher and higher. The continuous box girder bridge with variable cross-section is obtained by the advantages of concise form, symmetrical appearance and strong adaptability Extensive promotion. At present, the concrete rigid-frame continuous box girder bridge has the tendency to further develop to larger span and higher piers. The superstructure further reduces structural self-respect and increases spanning capacity through the use of high-strength, high-performance, lightweight concrete and advanced prestressing systems. The evaluation methods and specific construction techniques of the cantilever beam technology are introduced.