Small-block assembled internal mold suitable for rapid construction of large-span movable mold frame

Abstract

The utility model discloses a small-block assembled internal mold suitable for rapid construction of a large-span movable mold frame, which comprises a plurality of internal mold units which are distributed along the longitudinal direction of the movable mold frame and are spliced in sequence; each inner mold unit comprises a set of top plate mold plates, two sets of web plate mold plates, two sets of top plate chamfering mold plates, two sets of bottom plate chamfering mold plates, a middle supporting rod, a top plate supporting rod, a bottom plate supporting rod and a web plate supporting rod. Each group of web templates comprises a plurality of small web templates which are sequentially spliced from top to bottom, each group of top plate chamfering templates comprises a plurality of small top plate chamfering templates which are sequentially spliced, and each group of bottom plate chamfering templates comprises a plurality of small bottom plate chamfering templates which are sequentially spliced. According to the utility model, the traditional integrated internal mold is decomposed into a plurality of small internal mold assemblies, so that the transportation and hoisting efficiency is improved, and adjustment can be carried out according to the linear change of a beam body during assembly, so that slab staggering is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to mobile mould frame cast-in-situ beam construction technical field, and specifically is a small block assembly type inner mould suitable for large-span mobile mould frame rapid construction. BACKGROUND

[0002] The mobile mould frame cast-in-situ beam construction is the advanced method of current bridge construction, and does not need to set up support under the bridge and other measures when beam is made, but relies on the pier top as the support and moves through the cross beam to make the beam quickly.In the early construction process of the project, it is found that the inner mould installation process of the mobile mould frame seriously affects the construction progress and the beam body quality, and the main reason is that when the inner mould is assembled in blocks, the single block volume is too large, and the inner mould often has problems such as space limitation, transportation difficulty, poor linear adaptation condition, hoisting risk and the like during installation. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical problem to provide a small block assembly type inner mould suitable for large-span mobile mould frame rapid construction, which decomposes the traditional integrated inner mould into many small block inner mould components, improves the transportation and hoisting efficiency, and can be adjusted according to the linear change of the beam body during assembly, thereby reducing the error table.

[0004] The technical scheme of the utility model is as follows:

[0005] A small block assembly type inner mould suitable for large-span mobile mould frame rapid construction comprises a plurality of inner mould units, and the plurality of inner mould units are distributed along the longitudinal direction of the mobile mould frame and are sequentially spliced.

[0006] Each inner mould unit comprises a group of top plate templates, two groups of web plate templates, two groups of top plate chamfer templates, two groups of bottom plate chamfer templates, a middle support rod, a plurality of top plate support rods, a plurality of bottom plate support rods and a plurality of web plate support rods, the group of top plate templates is composed of a plurality of small block top plate templates, the plurality of small block top plate templates are horizontally arranged along the top plate of the bridge box chamber and are sequentially spliced, the two groups of web plate templates are arranged at the two web plate positions of the bridge box chamber, each group of web plate templates comprises a plurality of small block web plate templates that are sequentially spliced from top to bottom, the two groups of top plate chamfer templates are connected between the top end of one group of web plate templates and one end of one group of top plate templates, and between the top end of the other group of web plate templates and the other end of one group of top plate templates, each group of top plate chamfer templates comprises a plurality of small block top plate chamfer templates that are sequentially spliced, and the two groups of bottom plate chamfer templates are connected at the bottom end of the two groups of web plate templates, each group of bottom plate chamfer templates comprises a plurality of small block bottom plate chamfer templates that are sequentially spliced.

[0007] The top end of each set of top plate chamfering formwork and the top of a corresponding set of web plate formwork are fixedly connected with a top chamfering steel pipe, the bottom end of each set of bottom plate chamfering formwork and the bottom of a corresponding set of web plate formwork are fixedly connected with a bottom chamfering steel pipe, a middle support rod is horizontally arranged, the two ends of the middle support rod are respectively hinged to the two top chamfering steel pipes, a plurality of top plate support rods are respectively hinged between the middle support rod and a set of top plate formwork, a bottom plate support rod is hinged between the middle support rod and each set of top plate formwork, and a web plate support rod is hinged between the middle support rod and each set of web plate formwork.

[0008] The length of each of the plurality of inner mold units in the longitudinal direction is 1-1.5 m.

[0009] The length of the small piece top plate formwork in the splicing direction is 45-55 cm, the length of the small piece web plate formwork in the splicing direction is 40-50 cm, the length of the small piece top plate chamfering formwork in the splicing direction is 30-50 cm, and the length of the small piece bottom plate chamfering formwork in the splicing direction is 20-50 cm.

[0010] The inner wall of each of the small piece top plate formwork, the small piece web plate formwork, the small piece top plate chamfering formwork and the small piece bottom plate chamfering formwork is fixedly connected with a corresponding support framework, the support frameworks are sequentially spliced in the splicing direction, the top chamfering steel pipe is fixedly connected between the top end of the inner wall support framework of each set of top plate chamfering formwork and the top of the inner wall support framework of a set of web plate formwork, the bottom chamfering steel pipe is fixedly connected between the bottom end of the inner wall support framework of each set of bottom plate chamfering formwork and the bottom of the inner wall support framework of a set of web plate formwork, a plurality of top plate support rods are respectively hinged between the middle support rod and the inner wall support framework of a set of top plate formwork, a bottom plate support rod is hinged between the middle support rod and the inner wall support framework of each set of top plate formwork, and a web plate support rod is hinged between the middle support rod and the inner wall support framework of each set of web plate formwork.

[0011] The two ends and the middle of the inner wall support framework of each set of top plate formwork are provided with a top plate hinging piece, the middle support rod is provided with two upwardly extending upper hinging pieces corresponding to the top plate hinging pieces in the up-down direction, the top plate support rods of each inner mold unit are four, two of which are vertically arranged, the top ends of the two vertically arranged top plate support rods are respectively hinged to the top plate hinging pieces at the two ends of a set of top plate formwork, the bottom ends of the two vertically arranged top plate support rods are respectively hinged to the two upper hinging pieces, the top of the other two top plate support rods are respectively hinged to the top plate hinging pieces at the middle of a set of top plate formwork, and the bottom ends of the other two top plate support rods are respectively hinged to the two upper hinging pieces.

[0012] Two lower hinged pieces are arranged on the intermediate support rod, the two lower hinged pieces and the two upper hinged pieces are radially symmetrical along the intermediate support rod and extend downward, the middle part of the inner wall support framework of the two groups of web plate templates is provided with a web plate hinged piece, the bottom end of the inner wall support framework of the two groups of bottom plate chamfer templates is provided with a bottom plate hinged piece, the bottom plate support rod of each inner mold unit is two, the web plate support rod of each inner mold unit is two, the top end of the two web plate support rods is hinged on the two lower hinged pieces respectively, the bottom end of the two web plate support rods is hinged on the two web plate hinged pieces respectively, the top end of the two bottom plate support rods is hinged on the two lower hinged pieces respectively, and the bottom end of the two bottom plate support rods is hinged on the two bottom plate hinged pieces respectively.

[0013] The utility model discloses the advantages are:

[0014] (1), the utility model discloses an integrated inner mold is decomposed into many small block inner mold assemblies, and the quality of each small block mold plate is not more than 50kg, and the volume is small and light in weight, can conveniently transport through conventional transport tools, can also adopt the chain block and move in the box room of beam body short distance, not only reduces the transportation cost, but also reduces the risk and hoisting demand in the construction process.

[0015] (2), the utility model discloses small block structure, avoids the collision with the binding post reinforcement when hoisting and splicing, causes the problem of the deformation of reinforcement.

[0016] (3), the small block inner mold of the utility model can be flexibly combined and adjusted according to actual construction demand, to adapt to the construction requirement of bridge box room of different sizes and shapes, so that the inner mold is more flexible in construction, can satisfy the demand under various complex construction conditions.

[0017] (4), the inner mold of the utility model is spliced, and the intermediate cross brace, the roof support rod, the bottom plate support rod and the web plate support rod are used to stably support each mold plate assembly, so that the inner mold structure after splicing and assembling is stable, and the quality of bridge construction is further guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure schematic diagram after splicing of the roof mold plate, the web plate mold plate, the roof chamfer mold plate and the bottom plate chamfer mold plate of the utility model.

[0019] Figure 2 It is the structure schematic diagram after splicing of the utility model.

[0020] Reference signs: 1 - small piece of roof template, 2 - small piece of web template, 3 - small piece of roof chamfer template, 4 - small piece of bottom plate chamfer template, 5 - support framework, 6 - top chamfer steel pipe, 7 - bottom chamfer steel pipe, 8 - middle support rod, 9 - roof support rod, 10 - bottom plate support rod, 11 - web support rod, 12 - roof hinge, 13 - upper hinge, 14 - lower hinge, 15 - web hinge, 16 - bottom plate hinge. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] See Figure 1 And Figure 2 A small piece of assembled inner mold suitable for rapid construction of large-span movable mold frame, comprising a plurality of inner mold units, the plurality of inner mold units are distributed along the longitudinal direction of the movable mold frame and are sequentially spliced, the length of the plurality of inner mold units along the longitudinal direction is 1m or 1.5m;

[0023] Each inner mold unit comprises a set of top plate templates, two sets of web plate templates, two sets of top plate chamfer templates, two sets of bottom plate chamfer templates, a middle support rod 8, four top plate support rods 9, two bottom plate support rods 10 and two web plate support rods 11, the set of top plate templates is composed of six small block top plate templates 1, which are arranged horizontally along the top plate of the bridge box and sequentially spliced, the length of each small block top plate template 1 along the splicing direction is 50 cm, the two sets of web plate templates are respectively arranged at the two web plate positions of the bridge box, each set of web plate templates comprises four small block web plate templates 2 spliced sequentially from top to bottom, the length of each small block web plate template 1 along the splicing direction is 50 cm, the two sets of top plate chamfer templates are respectively connected between the top end of one set of web plate templates and one end of a set of top plate templates, and between the top end of the other set of web plate templates and the other end of a set of top plate templates, each set of top plate chamfer templates comprises four small block top plate chamfer templates 3 spliced sequentially, the length of the two small block top plate chamfer templates 3 at the top chamfer changes according to the gradual size of the beam body along the splicing direction, which is divided into 467mm, 427mm, 399mm, 373mm, 346mm, 320mm in total, the two sets of bottom plate chamfer templates are respectively connected at the bottom end of the two sets of web plate templates, each set of bottom plate chamfer templates comprises three small block bottom plate chamfer templates 4 spliced sequentially, the two small block bottom plate chamfer templates 4 at the bottom chamfer change according to the gradual size of the beam body, which is divided into 500mm, 442mm, 381mm, 309mm, 252mm, 201mm in total;

[0024] The inner walls of the small block top plate template 1, the small block web plate template 2, the small block top plate chamfer template 3 and the small block bottom plate chamfer template 4 are fixedly connected with corresponding support skeletons 5, the support skeletons 5 are sequentially spliced along the splicing direction, the top chamfer steel pipe 6 is fixedly connected between the top end of the inner wall support skeleton of one set of top plate chamfer templates and the top of the inner wall support skeleton of one set of web plate templates, the bottom chamfer steel pipe 7 is fixedly connected between the bottom end of the inner wall support skeleton of one set of bottom plate chamfer templates and the bottom of the inner wall support skeleton of one set of web plate templates, the middle support rod 8 is arranged horizontally, and the two ends of the middle support rod 8 are respectively hinged to the two top chamfer steel pipes 6;

[0025] Two top plate hinged elements 12 are arranged on the two ends and the middle of the inner wall support framework of the set of top plate templates, two upper hinged elements 13 are arranged on the middle support rod 7 and extend upward and correspond to the upper and lower positions of the top plate hinged elements 12, among the four top plate support rods of each inner mold unit, two top plate support rods 9 are arranged vertically, the top ends of the two vertically arranged top plate support rods 9 are respectively hinged to the top plate hinged elements 12 at the two ends of the set of top plate templates, the bottom ends of the two vertically arranged top plate support rods are respectively hinged to the two upper hinged elements 13, the top of the other two top plate support rods 9 is hinged to the top plate hinged element 12 at the middle of the set of top plate templates, and the bottom ends of the other two top plate support rods 9 are respectively hinged to the two upper hinged elements 13;

[0026] Two lower hinged elements 14 are arranged on the middle support rod 8, the two lower hinged elements 14 are radially symmetrical to the two upper hinged elements 13 along the middle support rod 8 and extend downward, the middle of the inner wall support framework of the two sets of web plate templates is provided with a web plate hinged element 15, the bottom end of the inner wall support framework of the two sets of bottom plate chamfer templates is provided with a bottom plate hinged element 16, the top ends of the two web plate support rods 11 are respectively hinged to the two lower hinged elements 14, the bottom ends of the two web plate support rods 11 are respectively hinged to the two web plate hinged elements 15, the top ends of the two bottom plate support rods 10 are respectively hinged to the two lower hinged elements 14, and the bottom ends of the two bottom plate support rods 10 are respectively hinged to the two bottom plate hinged elements 16.

[0027] During installation, first, according to the design drawings and construction scheme, the small piece top plate template 1, the small piece web plate template 2, the small piece top plate chamfer template 3 and the small piece bottom plate chamfer template 4 are hoisted to the designated position one by one, the connecting elements and fasteners are used to fixedly connect the small piece templates together to form a complete inner mold structure, then the support framework 5, the top chamfer steel pipe 6, the bottom chamfer steel pipe 7 and the middle support rod 8 are installed, the top chamfer steel pipe 6 and the corresponding support framework 5 are an integrated connection structure, the bottom chamfer steel pipe 7 and the corresponding support framework 5 are an integrated connection structure, and finally the top plate support rod 9, the bottom plate support rod 10 and the web plate support rod 11 are installed, before installation, the top plate support rod 9, the bottom plate support rod 10 and the web plate support rod 11 are in a contracted state, during installation, the upper pressure is elongated to a set length and is hinged to the corresponding hinged element for support and fixation.

[0028] When the concrete of the beam body has been fully solidified and reaches the form removal strength, the tools and equipment required for disassembly are prepared, such as a crane, a hand-operated hoist and the like, the top plate support rod 9, the bottom plate support rod 10 and the web plate support rod 11 are sequentially unloaded, an electric hoist is used to pull and disassemble, then the middle support rod 8, the support framework 5, the top chamfer steel pipe 6 and the bottom chamfer steel pipe 7 are disassembled, the connecting elements and fasteners between the small piece templates are disassembled, and finally the hand-operated hoist is used to hoist away the disassembled small piece templates one by one and place them in the designated position.

[0029] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A small piece assembly type inner form suitable for rapid construction of a long-span movable formwork, characterized in that: The multiple inner mold units are distributed along the longitudinal direction of the moving mold frame and are sequentially spliced; Each inner mold unit comprises a group of top plate templates, two groups of web plate templates, two groups of top plate chamfer templates, two groups of bottom plate chamfer templates, a middle support rod, multiple top plate support rods, multiple bottom plate support rods, and multiple web plate support rods. The group of top plate templates is composed of multiple small block top plate templates, which are horizontally arranged along the top plate of the bridge box and are sequentially spliced. The two groups of web plate templates are arranged at the two web plate positions of the bridge box, and each group of web plate templates comprises multiple small block web plate templates that are sequentially spliced from top to bottom. The two groups of top plate chamfer templates are respectively connected between the top end of one group of web plate templates and one end of one group of top plate templates, and between the top end of the other group of web plate templates and the other end of one group of top plate templates. Each group of top plate chamfer templates comprises multiple small block top plate chamfer templates that are sequentially spliced. The two groups of bottom plate chamfer templates are respectively connected at the bottom ends of the two groups of web plate templates. Each group of bottom plate chamfer templates comprises multiple small block bottom plate chamfer templates that are sequentially spliced. The top end of each group of top plate chamfer templates and the top of the corresponding group of web plate templates are fixedly connected by a top chamfer steel pipe. The bottom end of each group of bottom plate chamfer templates and the bottom of the corresponding group of web plate templates are fixedly connected by a bottom chamfer steel pipe. The middle support rod is horizontally arranged, and the two ends of the middle support rod are respectively hinged to the two top chamfer steel pipes. The multiple top plate support rods are respectively hinged between the middle support rod and one group of top plate templates. The middle support rod and each group of top plate templates are hinged by a bottom plate support rod. The middle support rod and each group of web plate templates are hinged by a web plate support rod.

2. The small-block assembled inner form suitable for rapid construction of long-span movable formwork according to claim 1, characterized in that: The length of each inner mold unit along the longitudinal direction is 1-1.5 m.

3. The small-block assembled inner form suitable for rapid construction of long-span movable formwork according to claim 1, characterized in that: The length of the small block top plate template along the splicing direction is 45-55 cm. The length of the small block web plate template along the splicing direction is 40-50 cm. The length of the small block top plate chamfer template along the splicing direction is 30-50 cm. The length of the small block bottom plate chamfer template along the splicing direction is 20-50 cm.

4. The small-block assembled inner form suitable for rapid construction of long-span movable formwork according to claim 1, characterized in that: The inner walls of the small block top plate template, the small block web plate template, the small block top plate chamfer template, and the small block bottom plate chamfer template are fixedly connected with corresponding support skeletons, which are sequentially spliced along the splicing direction. The top chamfer steel pipe is fixedly connected between the top end of the inner wall support skeleton of each group of top plate chamfer templates and the top of the inner wall support skeleton of one group of web plate templates. The bottom chamfer steel pipe is fixedly connected between the bottom end of the inner wall support skeleton of each group of bottom plate chamfer templates and the bottom of the inner wall support skeleton of one group of web plate templates. The multiple top plate support rods are respectively hinged between the middle support rod and the inner wall support skeleton of one group of top plate templates. The middle support rod and the inner wall support skeleton of each group of top plate templates are hinged by a bottom plate support rod. The middle support rod and the inner wall support skeleton of each group of web plate templates are hinged by a web plate support rod.

5. The small-block assembled inner form suitable for rapid construction of long-span movable formwork according to claim 4, characterized in that: The two ends and the middle part of the inner wall support framework of the set of roof templates are provided with a roof hinge respectively, and the middle support rod is provided with two upper hinges extending upward and corresponding to the upper and lower positions of the roof hinge; the roof support rods of each inner mold unit are four, two of which are vertically arranged, the top ends of the two vertically arranged roof support rods are hinged to the roof hinges at the two ends of the set of roof templates respectively, the bottom ends of the two vertically arranged roof support rods are hinged to the two upper hinges respectively, the top parts of the other two roof support rods are hinged to the roof hinge at the middle part of the set of roof templates, and the bottom ends of the other two roof support rods are hinged to the two upper hinges respectively.

6. The small-block assembled inner form suitable for rapid construction of long-span movable formwork according to claim 5, characterized in that: The middle support rod is provided with two lower hinges extending downward and radially symmetric to the two upper hinges along the middle support rod; the middle part of the inner wall support framework of the two sets of web templates is provided with a web hinge, the bottom end of the inner wall support framework of the two sets of bottom plate chamfer templates is provided with a bottom plate hinge, the bottom support rods of each inner mold unit are two, the web support rods of each inner mold unit are two, the top ends of the two web support rods are hinged to the two lower hinges respectively, the bottom ends of the two web support rods are hinged to the two web hinges respectively, the top ends of the two bottom plate support rods are hinged to the two lower hinges respectively, and the bottom ends of the two bottom plate support rods are hinged to the two bottom plate hinges respectively.

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