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A platform for research: civil engineering, architecture and urbanism
Method for prefabricating small box girder by filling sand into inner mold
The invention discloses a method for prefabricating a small box girder by filling sand into an inner mold. The method comprises the following steps: step 1, prefabricating a pedestal; 2, binding the floor and side plate reinforcing steel bars; thirdly, side molds and an inner mold are installed; 4, adjusting the height of the inner mold and filling sand; 5, manufacturing a concrete box girder; sixthly, formwork removal and concrete curing are conducted. Sand is filled in the inner mold to serve as a balance weight to prevent the inner mold from floating upwards; sand in the inner mold plays a supporting role at the same time, and supporting structures in the inner mold are reduced, so that the structure is simple and high in reliability; a supporting and fixing component in a traditional formwork is omitted, and the formwork can be disassembled after sand is discharged, so that the formwork is convenient to assemble and disassemble; steel use is reduced; no hinge or other mechanical structures exist, the structure is simple, repairing is convenient, and the turnover utilization rate is high.
本发明公开了一种内模灌砂预制小箱梁的方法，包括：步骤一、预制台座；步骤二、绑扎地板及侧板钢筋；步骤三、安装侧模及内模；步骤四、内模高度调整及灌砂；步骤五、混凝土箱梁制作；步骤六、拆模及混凝土养护。本发明通过内模内部灌砂作为配重防止内模上浮；内模中的砂子同时起到支撑作用，减少内模内部支撑结构，使结构简单可靠性高；省去了传统模板内部支撑固定构件，排出砂子即可拆模，使模板安拆方便；减少钢材使用；无铰链等机械结构，结构简单，修补方便，周转利用率高。
Method for prefabricating small box girder by filling sand into inner mold
The invention discloses a method for prefabricating a small box girder by filling sand into an inner mold. The method comprises the following steps: step 1, prefabricating a pedestal; 2, binding the floor and side plate reinforcing steel bars; thirdly, side molds and an inner mold are installed; 4, adjusting the height of the inner mold and filling sand; 5, manufacturing a concrete box girder; sixthly, formwork removal and concrete curing are conducted. Sand is filled in the inner mold to serve as a balance weight to prevent the inner mold from floating upwards; sand in the inner mold plays a supporting role at the same time, and supporting structures in the inner mold are reduced, so that the structure is simple and high in reliability; a supporting and fixing component in a traditional formwork is omitted, and the formwork can be disassembled after sand is discharged, so that the formwork is convenient to assemble and disassemble; steel use is reduced; no hinge or other mechanical structures exist, the structure is simple, repairing is convenient, and the turnover utilization rate is high.
本发明公开了一种内模灌砂预制小箱梁的方法，包括：步骤一、预制台座；步骤二、绑扎地板及侧板钢筋；步骤三、安装侧模及内模；步骤四、内模高度调整及灌砂；步骤五、混凝土箱梁制作；步骤六、拆模及混凝土养护。本发明通过内模内部灌砂作为配重防止内模上浮；内模中的砂子同时起到支撑作用，减少内模内部支撑结构，使结构简单可靠性高；省去了传统模板内部支撑固定构件，排出砂子即可拆模，使模板安拆方便；减少钢材使用；无铰链等机械结构，结构简单，修补方便，周转利用率高。
Method for prefabricating small box girder by filling sand into inner mold
内模灌砂预制小箱梁的方法
ZHAO JINPENG (author) / HU FEIFAN (author) / CAI ZHIGANG (author) / ZHANG HUI (author)
2023-03-03
Patent
Electronic Resource
Chinese
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