智能张拉系统在预制小箱梁施工的应用研究

Study on Intelligent Tensioning System in Precast Box Girder Construction

在宁波环城南、北环快速路推行使用预应力智能张拉设备要求,通过对环城南快速路预制三标段320榀小箱梁预应力的智能张拉的应用,从张拉工艺、张拉力及伸长值控制等方面进行总结,实现了预制小箱梁预应力张拉真正意义上的"双控",有效地保证了小箱梁预制质量,为今后预应力张拉施工提供借鉴。

The requirements of using prestressed intelligent tensioning equipment are introduced in the south and north ring roads of Ningbo.Through the application of prestressing intelligent prestressing of box girder of 320 prefabricated section of Central South Ring. Expressway,technology,tension and elongation control and other aspects of the summary,to achieve precast box girder prestressed tension in the true sense of the ＂double control＂ to effectively ensure the prefabricated quality of small box girders for the future prestressed construction Provide reference.