后张法预应力混凝土箱梁预制施工工艺改进. (Chinese)

With the continuous improvement in the standard level of box girder prefabrication construction, it is necessary to improve the traditional construction process and strengthen the management of common quality problems. Taking the prefabricated box girder construction of Pubei-Beiliu expressway project in Guangxi as an example, by improving the end base of box girder end pedestal and optimizing the local position of formwork, it is beneficial to control the appearance quality of concrete; by adopting hydraulic system for the formwork erecting of side form, controlling the tension construction of prestressed reinforcement and applying intelligent spray maintenance system, the "standardized, automated and intelligent" development of box girder prefabrication is further improved, which can provide reference for prefabrication construction of box girder. [ABSTRACT FROM AUTHOR]

随着对箱梁预制施工标准化水平的持续提高，需不断对传统施工工艺进行改进和加强质量通病治理。以广 西浦北至北流高速公路项目箱梁预制施工为例，通过箱梁台座端头底座改进和模板局部位置优化，有利于混凝土外 观质量的控制。通过侧模采用液压系统支模、对预应力筋张拉施工控制和应用智能喷淋养护系统等工艺，进一步提 升箱梁预制施工“标准化、自动化和智能化”的发展，可为箱梁预制施工提供借鉴。 [ABSTRACT FROM AUTHOR]

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