预制箱梁钢内模板吊装辅助装置的研制与应用

Development and Application of Hoisting Auxiliary Device of Steel Internal Formwork for Precast Box Girder

以某工程项目为例,针对传统起重吊装方案的不足,通过对预制箱梁定制钢内模板的外形特征、尺寸及质量等进行研究,结合以往钢模板安装及拆卸的施工经验,现场试验并研制了一套施工效率高、实用性强、安全性好、适用性广的预制箱梁定制钢内模板快速吊装辅助装置。实践证明,该装置结构简单合理,操作简便,造价低,维护及维修方便,且可重复利用,可供大型钢模板机械化吊装参考借鉴。

Taking an engineering project as an example,in view of the shortcomings of the traditional hoisting scheme,through the research on the shape characteristics,size and quality of the customized steel inner formwork for precast box girder,combined with the construction experience of the installation and demolition of the steel formwork in the past,a set of customized steel internal formwork for precast box girder with high construction efficiency,strong practicability,good safety and wide applicability is developed through field test.Practice has proved that the device is simple and reasonable in structure,simple in operation,low in cost,convenient in maintenance and repair,and can be reused,which can be used as a reference for mechanized hoisting of large steel formwork.