An inner mold splicing module and a variable detachable inner mold and its construction technology

Abstract

The invention discloses an inner mold splicing module, a variable whole-detachable inner mold and a construction process thereof. The inner mold splicing module includes a first side mold, a second side mold and a connecting rod mechanism. The first side mold , The second side form includes a top plate, a bottom plate and a side plate, the side plates are arranged in two sections and connected by hinges, the ends of the first side form and the second side form are spliced ​​together to form a two-sided penetrating Cavity body structure, the inside of the first side mold and the second side mold are equipped with the linkage mechanism, the linkage mechanism includes a plurality of parallel connecting rod groups and tie rods, the connecting rod group includes the upper connecting rod Rod and lower connecting rod, the lower end of the upper connecting rod and the upper end of the lower connecting rod are connected to the pull rod through pivot pins. In the present invention, the bolts for vertically fixing the support rods are only provided at the front ends of each module, and the overall mold disassembly and closing operation can be realized without entering the inside of the mold when disassembling and closing the mold, which improves the operation safety and convenience, and is suitable for various sizes and small cross-sections. The steel mold construction of inner cavity components provides the possibility.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to an inner mold splicing module, a variable integral detachable inner mold and a construction process thereof. Background technique [0002] Rigid-connected slab girders or small box girders are more and more widely used in municipal bridge projects. Rigid-connected slab girders are rigidly connected between beams and girders. Compared with traditional bridge decks, this type of component has more advantages. It is equivalent to a reduced version of the box girder, and there are many characteristics such as the small cross-sectional size of the internal cavity of the component. During the pouring construction of this type of components, if the traditional box girder member steel internal formwork structure is used for construction, since the traditional internal formwork is connected by bolts during construction, the internal space of the steel internal fo...

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Problems solved by technology

During the pouring construction of this type of components, if the traditional box girder member steel internal formwork structure is used for construction, since the traditional internal formwork is connected by bolts during construction, the internal space of the steel internal formwork is very small and cannot accommodate construction personnel to enter it. Carry out mold disassembly and closing operations; if rubber airbags are used as mold cores for construction, since the airbags are made of rubber, during the concrete pouring process, due to the lateral pressure of the concrete, the airbags will produce a certain elastic deformation, resulting in irregular concrete molding Deformation, and even lead to the failure of the formed components to meet the quality requirements and be scrapped; in addition, a secondary pouring method is adopted, that is, the upper and lower parts of the inner mold are poured in sections, and the lower half of the open inner mold is first poured, and then the upper part of the cavity is poured with wooden planks. The roof part, and the plank structure is permanently left in the inner cavity, the construction process is more complicated and there are many hidden dangers in the quality

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