大跨度后张预应力梁施工工艺与施工质量控制

Construction Technology and Quality Control of the Big Span Post-Tensioned Beam

后张预应力施工出现较早,应用较为广泛,在理论研究上较为成熟,但是在实际施工中,由于施工工艺不当和施工质量控制不严,造成极大的质量隐患和工程质量事故的实例屡见不鲜。本文着重介绍在施工过程中各道工序要点和操作技巧,为施工质量的提高和工程顺利进行提供了保证。

Although construction technology of post-lensioned beam has early anti exteasive application and has been mature in theoretical research, in practical construction, it＇s not rare to see the serious hidden quality dangers or quality accidents caused by improper construction process or relaxed quality control. This article focuses on the key points and operation techniques of each working procedure to guarantee the improvement of the engineering quality and smooth progress of the construction.