Prefabricated bridge deck system prefabricating mold for high-speed railway

By designing a prefabrication mold system with various templates and supports, the problems of difficult demolding and mold deformation during the prefabrication of bridge deck systems were solved, enabling rapid and convenient construction and installation, and improving construction efficiency and quality.

CN224224154UActive Publication Date: 2026-05-12THE FIRST ENG CO LTD OF CHINA RAILWAY NO 12 BUREAU GRP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE FIRST ENG CO LTD OF CHINA RAILWAY NO 12 BUREAU GRP
Filing Date
2025-04-01
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

During the prefabrication of bridge deck systems, difficulties in demolding and mold deformation and damage are common problems, especially in the demolding of large bridge deck ancillary structures and the protection of molds, which affect construction efficiency and quality.

Method used

A precast mold system comprising various templates and supports was designed. Through the cooperation of tie rods and top supports, the mold is ensured not to deform during the casting process, and a convenient disassembly method is provided. The drainage hole positioning rod is used to improve construction efficiency.

Benefits of technology

It enables rapid and convenient installation of bridge deck ancillary structures, reduces construction time and personnel requirements, improves construction quality and safety, and is suitable for simultaneous construction on multiple work surfaces, avoiding mold deformation and damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of concrete pouring molds, and particularly relates to an assembly type bridge deck system prefabricating mold for a high-speed railway. Comprising a bottom formwork, a side formwork, a side wall outer formwork, a side wall inner formwork, a vertical wall first formwork, a vertical wall second formwork, a protective wall inner formwork and a protective wall outer formwork. The side wall outer formwork and the side wall inner formwork are connected between the two side formworks to define a side wall formwork cavity. The first vertical wall formwork and the second vertical wall formwork are connected between the two side formworks to define a vertical wall formwork cavity. The protection wall inner formwork and the protection wall outer formwork are connected between the two side formworks to define a protection wall formwork cavity. The bottom formwork is connected between the two side formworks to seal the bottoms of the side wall formwork cavity, the vertical wall formwork cavity and the protective wall formwork cavity, and the bottom formwork, the side wall inner formwork, the first vertical wall formwork, the second vertical wall formwork and the protective wall inner formwork are arranged at intervals to form a bottom plate formwork cavity. The problems that bridge deck accessory structures such as protective walls, vertical walls and side walls of a traditional bridge deck system are multiple in installation procedure and large in number of used formworks are effectively solved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of concrete pouring mould, concretely relates to a prefabricated mould for assembly type bridge deck system of high speed railway. BACKGROUND

[0002] In recent years, the proportion of high speed railway bridges in China is getting larger and larger, and the standards are getting higher and higher. The bridge deck accessory structure mainly includes protective walls, vertical walls, side walls and the like. The prefabricated assembly type bridge deck system construction process is molded by in-mold pouring in the prefabrication yard, and the finished product is transported to the bridge site for installation. Compared with the traditional in-situ cast protective wall and vertical wall process, the prefabricated assembly type bridge deck system construction process has the advantages of not being affected by the beam construction period, high standardization construction degree, and better quality and safety, and is more suitable for the requirements of current railway bridge deck engineering civilized construction, rapid construction and unified standardization.

[0003] In the prefabrication process of the assembly type bridge deck system, the pouring mold structure design plays a crucial role in the pouring process. In the pouring process, the bridge deck accessory structure needs to be demolded after solidification in the mold. Due to the large volume of individual components of the bridge deck accessory structure and the adhesion between the concrete and the steel mold, demolding is usually difficult. If the demolding process is not properly controlled, the formed accessory structure may be damaged, and the steel mold may be deformed and damaged due to excessive force or uneven stress during the demolding process. Therefore, in the process of making the bridge deck system prefabricated block, it is important to ensure that the mold does not deform during the pouring process, and that the mold is easy to disassemble and improves the molding efficiency. SUMMARY

[0004] An object of the present utility model is to solve at least the above problems and provide at least the advantages to be explained later.

[0005] To achieve the above-mentioned purpose, the utility model provides a prefabricated mould for assembly type bridge deck system of high speed railway, including bottom mould plate, side mould plate, side wall outer mould plate, side wall inner mould plate, vertical wall first mould plate, vertical wall second mould plate, protective wall inner mould plate and protective wall outer mould plate.

[0006] The side wall outer mould plate and the side wall inner mould plate are connected between the two side mould plates to form a side wall mold cavity with an open top;

[0007] The vertical wall first mould plate and the vertical wall second mould plate are connected between the two side mould plates to form a vertical wall mold cavity with an open top;

[0008] The protective wall inner mould plate and the protective wall outer mould plate are connected between the two side mould plates to form a protective wall mold cavity with an open top;

[0009] The bottom mould plate is connected between the two side mould plates to close the bottom of the side wall mold cavity, the vertical wall mold cavity and the protective wall mold cavity, and a spacing is provided between the side wall inner mould plate, the vertical wall first mould plate, the vertical wall second mould plate and the protective wall inner mould plate to form a bottom plate mold cavity.

[0010] Further, the top of the side wall outer formwork, the side wall inner formwork, the vertical wall first formwork, the vertical wall second formwork, the protection wall inner formwork and the protection wall outer formwork is connected with a same top support.

[0011] Further, the protection wall inner formwork and the protection wall outer formwork are connected with a first pair of tensioning screws, and the side wall outer formwork and the side wall inner formwork are connected with a second pair of tensioning screws.

[0012] Further, the top support comprises a horizontal rod and a plurality of vertical rods fixed on the horizontal rod, the side wall outer formwork, the side wall inner formwork, the protection wall inner formwork and the protection wall outer formwork are connected with a same vertical rod, and the vertical wall first formwork and the vertical wall second formwork are connected with a same vertical rod.

[0013] Further, the horizontal rod of the top support is provided with a lifting lug.

[0014] Further, the vertical rod is fixed between the side wall outer formwork, the side wall inner formwork, the vertical wall first formwork, the vertical wall second formwork, the protection wall inner formwork and the top of the protection wall outer formwork through bolts.

[0015] Further, the bottom formwork comprises a plane part and a vertical part, the bottom of the protection wall outer formwork is connected with the plane part of the bottom formwork, and the bottom surface of the side wall outer formwork is connected with the vertical part of the bottom formwork; the bottom formwork is supported by a bottom formwork support at the bottom to make the plane part in a horizontal state.

[0016] Further, the side formwork is fixed between the bottom formwork, the side wall outer formwork, the side wall inner formwork, the vertical wall first formwork, the vertical wall second formwork, the protection wall inner formwork and the protection wall outer formwork through bolts.

[0017] Further, the utility model further comprises a drain hole positioning rod, the protection wall outer formwork and the vertical wall second formwork are provided with sockets, and the drain hole positioning rod is fixed by inserting a tail plate into the sockets.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] The prefabricated mould for the assembled bridge deck system of the high-speed railway effectively solves the defects that the traditional bridge deck system protection wall, vertical wall, side wall and other bridge deck auxiliary structures have many installation procedures, large amount of used formwork, multiple concrete pouring, narrow on-site construction space, great construction difficulty, complicated formwork dismounting process, need to wait for the concrete strength when the formwork is removed, sequentially performed procedures, long construction period, many users, and time-consuming and labor-consuming material transportation and dismounting.

[0020] The utility model is suitable for the integral installation construction of all high-speed railway bridge surface accessory structures, has strong site applicability, is simple, fast and easy to install, can be freely combined in modularization, can be simultaneously constructed without interference between multiple work surfaces, can be timely constructed after the box girder erection is completed, does not affect the box girder erection and saves the construction period. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the assembly diagram of prefabricated mould for assembly type bridge surface system;

[0022] Figure 2 It is the explosion view of prefabricated mould for assembly type bridge surface system;

[0023] Figure 3 It is the front view of Figure 1

[0024] Figure 4 It is the schematic view of drain hole positioning rod;

[0025] Figure 5 It is the schematic view of second pair of pull screw rod.

[0026] In the drawing: 1 - bottom mould plate;2 - side mould plate;3 - side wall outer mould plate;4 - side wall inner mould plate;5 - vertical wall first mould plate;6 - vertical wall second mould plate;7 - protection wall inner mould plate;8 - protection wall outer mould plate;9 - top support;9.1 - horizontal rod;9.2 - vertical rod;9.3 - lifting lug;10 - first pair of pull screw rod;11 - second pair of pull screw rod;12 - bottom mould support;13 - drain hole positioning rod;14 - socket;15 - plugboard. DETAILED DESCRIPTION

[0027] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description is only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying creative labor, other drawings can also be obtained according to these drawings.

[0028] As Figures 1-5 ​The utility model discloses a prefabricated mould for assembled bridge deck system of high speed railway, including bottom mould plate 1, side mould plate 2, side wall outer mould plate 3, side wall inner mould plate 4, vertical wall first mould plate 5, vertical wall second mould plate 6, protective wall inner mould plate 7 and protective wall outer mould plate 8, side wall outer mould plate 3 and side wall inner mould plate 4 are connected between two side mould plate 2 and enclose the side wall mould cavity of top opening, vertical wall first mould plate 5 and vertical wall second mould plate 6 are connected between two side mould plate 2 and enclose the vertical wall mould cavity of top opening, protective wall inner mould plate 7 and protective wall outer mould plate 8 are connected between two side mould plate 2 and enclose the protective wall mould cavity of top opening, bottom mould plate 1 is connected between two side mould plate 2 and enclose the bottom of side wall mould cavity, vertical wall mould cavity and protective wall mould cavity and with side wall inner mould plate 4, vertical wall first mould plate 5, vertical wall second mould plate 6 and protective wall inner mould plate 7 between setting spacing form the bottom plate mould cavity.

[0029] Side wall mould cavity, vertical wall mould cavity and protective wall mould cavity all pour into concrete from top opening, and the top of bottom plate mould cavity is open, when concrete pours to the edge of side mould plate 2, manually receives surface and smooths, after the initial setting of concrete, continue pouring concrete from the top opening of side wall mould cavity, vertical wall mould cavity and protective wall mould cavity.

[0030] Bottom mould plate 1 includes plane part and facade part, and the bottom of protective wall outer mould plate 8 meets the plane part of bottom mould plate 1, and there is no mechanical connecting structure between the bottom of protective wall outer mould plate 8 and bottom mould plate 1, and the bottom surface of side wall outer mould plate 3 meets the facade part of bottom mould plate 1, and bottom mould plate 1 is supported by bottom mould support 12 at the bottom to make the plane part be in horizontal state, and bottom mould support 12 is a frame body of I-steel lap joint.

[0031] Bottom mould plate 1, side mould plate 2, side wall outer mould plate 3, side wall inner mould plate 4, vertical wall first mould plate 5, vertical wall second mould plate 6, protective wall inner mould plate 7 and protective wall outer mould plate 8 are steel mould plates, and side mould plate 2 is fixed by bolts between bottom mould plate 1, side wall outer mould plate 3, side wall inner mould plate 4, vertical wall outer mould plate 5, vertical wall second mould plate 6, protective wall inner mould plate 6 and protective wall outer mould plate 7, and bottom mould plate 1, side wall outer mould plate 3, side wall inner mould plate, vertical wall first mould plate 5, vertical wall second mould plate 6, protective wall outer mould plate 7 and protective wall outer mould plate 8 are provided with widened rib plates, and bolt holes are arranged on the rib plates.

[0032] In order to prevent the top of side wall mould cavity, vertical wall mould cavity and protective wall mould cavity from deforming, the top of side wall outer mould plate 3, side wall inner mould plate 4, vertical wall first mold plate 5, vertical wall second mold plate 6, protective wall inner mold plate 7 and protective wall outer mold plate 8 is connected to the same top support 9.

[0033] The top support 9 comprises a horizontal rod 9.1 and several vertical rods 9.2 fixed on the horizontal rod 9.1, the outer formwork 3 of the side wall, the inner formwork 4 of the side wall, the inner formwork 7 of the protective wall and the outer formwork 8 of the protective wall are connected with a vertical rod 9.2 respectively, and the first formwork 5 of the vertical wall and the second formwork 6 of the vertical wall are connected with a vertical rod 9.2 together. The outer formwork 3 of the side wall, the inner formwork 4 of the side wall, the inner formwork 7 of the protective wall and the outer formwork 8 of the protective wall are fixed with the connecting plate at the bottom of the vertical rod 9.2 through bolts; the first formwork 5 of the vertical wall and the second formwork 6 of the vertical wall are fixed with the angle steel on the vertical rod 9.2 through bolts.

[0034] The horizontal rod 9.1 of the top support 9 is provided with a lifting lug 9.3, and the top support 9 is lifted away when the formwork is removed.

[0035] After the bridge deck system is prefabricated, the top support 9 is lifted away first, then the side formwork 2 is removed, and then the outer formwork 3 of the side wall, the inner formwork 4 of the side wall, the first formwork 5 of the vertical wall, the second formwork 6 of the vertical wall, the inner formwork 7 of the protective wall and the outer formwork 8 of the protective wall are removed, so as to complete the removal of the formwork.

[0036] The first tensioning screw rod 10 is connected between the inner formwork 7 of the protective wall and the outer formwork 8 of the protective wall to prevent the bottom of the protective wall mold cavity from deforming, and the second tensioning screw rod 11 is connected between the outer formwork 3 of the side wall and the inner formwork 4 of the side wall to prevent the bottom of the side wall mold cavity from deforming.

[0037] The positioning rod 13 of the drain hole is further included, the outer formwork 8 of the protective wall and the second formwork 6 of the vertical wall are provided with the socket 14, the positioning rod 13 is fixed by inserting the plug plate 15 at the tail into the socket of the socket 14, the positioning rod 13 is pulled out after the bridge deck system is prefabricated, and the cavity left by the positioning rod 13 is used as the drain hole.

[0038] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A prefabricated mold for assembled bridge deck systems in high-speed railways, characterized in that: It includes bottom formwork (1), side formwork (2), outer formwork of side wall (3), inner formwork of side wall (4), first formwork of vertical wall (5), second formwork of vertical wall (6), inner formwork of protective wall (7), and outer formwork of protective wall (8); The outer formwork (3) and the inner formwork (4) of the side wall are connected between two side formworks (2) to form a side wall cavity with an open top. The first vertical wall template (5) and the second vertical wall template (6) are connected between two side templates (2) to form a vertical wall cavity with an open top. The inner formwork (7) and outer formwork (8) of the protective wall are connected between two side formworks (2) to form a protective wall cavity with an open top. The bottom template (1) is connected between two side templates (2) to close the bottom of the side wall mold cavity, the vertical wall mold cavity and the protective wall mold cavity, and is spaced with the inner template (4) of the side wall, the first template (5) of the vertical wall, the second template (6) of the vertical wall and the inner template (7) of the protective wall to form the bottom plate mold cavity.

2. The prefabricated mold for assembled bridge deck systems in high-speed railways according to claim 1, characterized in that: The tops of the outer side wall formwork (3), inner side wall formwork (4), first vertical wall formwork (5), second vertical wall formwork (6), inner protective wall formwork (7), and outer protective wall formwork (8) are connected to the same top support (9).

3. A prefabricated mold for a prefabricated bridge deck system for high-speed railways according to claim 1 or 2, characterized in that: The inner template (7) and outer template (8) of the protective wall are connected by a first pair of tie rods (10), and the outer template (3) and inner template (4) of the side wall are connected by a second pair of tie rods (11).

4. A prefabricated mold for a prefabricated bridge deck system for high-speed railways according to claim 2, characterized in that: The top support (9) includes a horizontal bar (9.1) and several vertical bars (9.2) fixed on the horizontal bar (9.1). The outer template (3), inner template (4), inner template (7), and outer template (8) of the side wall are each connected to a vertical bar (9.2). The first template (5) and the second template (6) of the vertical wall are connected to a vertical bar (9.2).

5. A prefabricated mold for a prefabricated bridge deck system for high-speed railways according to claim 4, characterized in that: The top support (9) is provided with a lifting lug (9.3) on the crossbar (9.1).

6. A prefabricated mold for a prefabricated bridge deck system for high-speed railways according to claim 4, characterized in that: The vertical rod (9.2) is fixed to the top of the outer template (3), inner template (4), first template (5), second template (6), inner template (7), and outer template (8) of the protective wall by bolts.

7. A prefabricated mold for a prefabricated bridge deck system for high-speed railways according to claim 1, characterized in that: The bottom formwork (1) includes a planar part and a vertical part. The bottom of the outer formwork (8) of the protective wall is connected to the planar part of the bottom formwork (1), and the bottom surface of the outer formwork (3) of the side wall is connected to the vertical part of the bottom formwork (1). The bottom formwork (1) is supported by the bottom formwork bracket (12) at the bottom so that the planar part is in a horizontal state.

8. A prefabricated mold for a prefabricated bridge deck system for high-speed railways according to claim 1, characterized in that: The side template (2) is fixed to the bottom template (1), the outer template of the side wall (3), the inner template of the side wall (4), the first template of the vertical wall (5), the second template of the vertical wall (6), the inner template of the protective wall (7), and the outer template of the protective wall (8) by bolts.

9. A prefabricated mold for a prefabricated bridge deck system for high-speed railways according to claim 1, characterized in that: It also includes a drain hole positioning rod (13), and sockets (14) are provided on the outer template (8) of the protective wall and the second template (6) of the vertical wall. The drain hole positioning rod (13) is fixed by inserting the insert plate (15) at the tail into the socket (14).