桥梁传统施工技术发展研究综述

Review on Development of Traditional Bridge Construction Technology

顶推施工法、转体施工法和悬臂施工法是应用最广泛的3种大跨度桥梁施工方法。新建桥梁跨度不断增大、桥梁形式日益多样、桥址处地形渐趋复杂,导致某些桥梁直接采用传统施工方法修建时遇到新问题和新挑战,同时为了提高施工效率、减小施工风险、降低施工造价,要求桥梁建设者必须结合新建桥梁的具体情况对传统施工方法进行改进。针对近5年来国内采用上述3种传统施工方法建造大跨桥梁过程中所遇到的特殊问题、挑战及桥梁建设者提出的创造性解决方案进行归纳与总结,以便相关桥梁建设者掌握采用传统方法施工过程中解决可能出现新问题的思考方法与具体方案,倡导广大桥梁建设者在实际桥梁建设过程中为不断丰富和完善传统桥梁施工方法、扩大其应用范围积极思考并贡献自己的力量。

Incremental launching construction method,rotation construction method and cantilever construction method are the three most widely used construction methods for long-span bridges.Due to the increasing span of new bridges,the increasingly diverse forms of bridges,and the increasingly complex terrain at the bridge site,construction of certain bridges encounters new problems and new challenges when they are directly constructed by traditional construction methods.At the same time,in order to improve construction efficiency,reduce construction risks,and reduce construction costs,bridge builders must combine the specific conditions of new bridges to improve traditional construction methods.The special problems and challenges encountered in the construction of long-span bridges using the above three traditional construction methods in China in the past five years,and the creative solutions proposed by bridge builders are summarized,so that the relevant bridge builders can master the thinking methods and specific schemes to solve the possible new problems in the construction process by traditional methods,and this paper advocates that the bridge builders actively think and contribute their own strength to continuously enrich and improve the traditional bridge construction methods in the actual bridge construction process.