大跨度桁架现场吊装施工研究

针对在不影响铁路客运既有线正常运营的环境下，如何安全高效率的完成车站无柱雨篷改造工程大跨度桁架吊装的技术难题，经过对无柱雨篷结构和站场作业环境的细致分析，摸索出一整套安全高效的施工方法，从而为同类型工程施工奠定基础。

On hoisting construction study of large span girder in the space

Aiming at the technique problem that how to accomplish effectively hoisting of the large span girder in the rain-proof shed without pillar reconstruction project safely under the normal running environment of present railway transportation,the paper proposes a set of safe and effective constructional methods after serious analysis on the structure of rain-proof shed as well as the constructional environment,thus establishes foundation for such kind of projects.