Integral prefabricating template for box girder bridge floor accessory component

Abstract

The utility model discloses an integral prefabricating formwork for a box girder bridge deck accessory component. The integral prefabricating formwork comprises a formwork assembly, a cross beam and stand columns arranged at the two ends of the cross beam. The number of the formwork assemblies is the same as that of accessory components to be formed, and when the number of the formwork assemblies is two or more, the formwork assemblies are distributed in the width direction of a bridge floor at intervals. Each formwork assembly comprises two vertical wall formworks arranged at intervals, and a forming cavity corresponding to an accessory component to be formed is defined by the two vertical wall formworks of the same formwork assembly. Part or all of the vertical wall formworks are hung on the cross beam through telescopic pieces. The vertical wall formwork lifting device is applied to the technical field of concrete pouring formworks, part or all of vertical wall formworks are hung on the cross beam through the telescopic pieces, so that all or most of the formworks are connected into a whole to be lifted integrally, manpower consumption can be reduced, and meanwhile the transfer efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of concrete pouring formwork technology, specifically a precast formwork for an integral component of a box girder bridge deck. Background Technology

[0002] Bridge deck ancillary components are an important part of railway bridge deck systems. Currently, most railway bridge deck ancillary components are precast by concrete casting. In the precasting process of railway bridge deck ancillary components, the design of the casting mold structure plays a crucial role in the casting process.

[0003] Currently, most precast formwork for railway bridge deck components is long, single-piece formwork. During the pouring process, after the components solidify in the mold, they need to be demolded. Due to the adhesion between the concrete and the steel mold, demolding is usually done manually and with the help of mechanical structures. This process is usually quite cumbersome and can easily damage the completed components. In addition, both mold assembly and demolding involve assembling and dismantling single-piece formwork in sequence. With so many single-piece formwork, the workload is enormous, and it is also difficult to ensure the straightness of the components. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides an integral prefabricated template for box girder bridge deck auxiliary components, which not only saves manpower in the process of mold assembly and demolding, but also allows multiple templates to be lifted as a whole for easy transportation.

[0005] To achieve the above objectives, this utility model provides an integral prefabricated template for the auxiliary components of a box girder bridge deck, including a template assembly, a crossbeam, and columns at both ends of the crossbeam;

[0006] The number of template components is the same as the number of auxiliary components to be formed. When there are two or more template components, each template component is distributed at intervals along the width direction of the bridge deck.

[0007] The template assembly includes two spaced vertical wall templates, and the two vertical wall templates of the same template assembly form a forming cavity for the corresponding auxiliary component;

[0008] Some or all of the vertical wall formwork is suspended on the horizontal beam via expansion joints.

[0009] In one embodiment, the bottom end of the column located at the first end of the crossbeam is provided with a first connecting structure for detachably connecting to the bridge deck;

[0010] The bottom end of the column located at the second end of the crossbeam is provided with a second connecting structure for detachably connecting to the side formwork of the bridge deck or the bridge deck box girder.

[0011] In one embodiment, the vertical wall formwork closest to the second end of the crossbeam is defined as the outer formwork;

[0012] The outer formwork is suspended on the crossbeam via the telescopic member, the outer formwork is hinged to the corresponding telescopic member, and a retractable first tie rod is hinged between the outer formwork and the adjacent column; or

[0013] The outer template is hinged to the side formwork of the bridge deck box girder, and a retractable first tie rod is hinged between the outer template and the side formwork of the bridge deck box girder.

[0014] In one embodiment, the vertical wall formwork closest to the first end of the crossbeam is defined as the inner formwork;

[0015] The inner template is suspended on the crossbeam by the telescopic member. The inner template is hinged to the corresponding telescopic member, and a telescopic second tie rod is hinged between the inner template and the adjacent column.

[0016] In one embodiment, when the number of template components is two or more:

[0017] In two adjacent template assemblies, two vertical wall templates that are close to each other are rigidly connected to form a double-sided template, and the double-sided template is suspended on the crossbeam by at least one of the telescopic members.

[0018] In one embodiment, connecting angle steel or connecting tie rods are detachably installed on the top of the two vertical wall templates of the same template assembly.

[0019] In one embodiment, the prefabricated template for the box girder bridge deck auxiliary components further includes a telescopic drive component, the two ends of which are respectively hinged to the crossbeam and the sliding sleeve to drive the sliding sleeve to slide along the length direction of the crossbeam.

[0020] In one embodiment, the telescopic drive is any one of a hydraulic cylinder, a pneumatic cylinder, an electric cylinder, and an electric telescopic rod.

[0021] In one embodiment, the telescopic component is any one of a hydraulic cylinder, a pneumatic cylinder, an electric cylinder, and an electric telescopic rod.

[0022] Compared with the prior art, the present invention has the following beneficial technical effects:

[0023] 1. This utility model suspends part or all of the vertical wall formwork on the horizontal beam through telescopic components, thereby connecting all or most of the formwork into a whole for overall lifting, which can improve transportation efficiency while reducing manpower consumption;

[0024] 2. This utility model can connect multiple vertical wall templates into a whole, and control the closing and demolding of the mold through telescopic elements such as hydraulic cylinders, screws, air cylinders or electric push rods. This not only makes the control process more stable and improves the quality of the precast wall, but also effectively saves a lot of manual operation.

[0025] 3. In the preferred embodiment of this utility model, two adjacent vertical wall templates in two adjacent template components are rigidly connected to form a double-sided template. This not only improves the overall structural strength of the prefabricated template of the box girder bridge deck auxiliary components during the forming process, but also enables the hoisting of two vertical wall templates through a telescopic component, thereby reducing costs.

[0026] 4. In the preferred embodiment of this utility model, by setting a sliding sleeve, the telescopic component and the vertical wall template can slide along the length direction of the horizontal beam, thereby effectively adapting to the wall changes of the auxiliary components to be formed. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the mold-closing state of the prefabricated template in an embodiment of this utility model;

[0029] Figure 2 This is a schematic diagram of the demolding state of the prefabricated template in an embodiment of this utility model;

[0030] Figure 3 This is a side view of the prefabricated template in an embodiment of this utility model;

[0031] Figure 4 This is a schematic diagram of the lifting of the prefabricated template in an embodiment of this utility model.

[0032] Reference numerals: 1-Horizontal beam, 2-Column, 3-Vertical wall formwork, 301-Outer formwork, 302-Inner formwork, 303-Double side formwork, 4-Forming cavity, 5-Expansion joint, 6-First tie rod, 7-Second tie rod, 8-Connecting angle steel or connecting tie rod, 9-Sliding sleeve, 10-Drive cylinder, 11-Bridge deck box girder side formwork, 12-Auxiliary components, 13-Bridge deck.

[0033] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0036] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal connection of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0039] like Figures 1 to 3 The diagram shows a prefabricated template for bridge deck auxiliary components (hereinafter referred to as "prefabricated template") disclosed in this embodiment. It is mainly used for the prefabrication of auxiliary wall structures such as protective walls for high-speed railway box girders. In this embodiment, the prefabrication of auxiliary components 12 is carried out after the main body of the box girder has been prefabricated and the main concrete has reached a certain strength. Then, the prefabrication process of auxiliary components 12, such as template installation and concrete pouring, is carried out.

[0040] In this embodiment, the prefabricated template includes template components, a crossbeam 1, and columns 2 located at both ends of the crossbeam 1. The number of template components is the same as the number of auxiliary components 12 to be formed, and each component corresponds one-to-one with the other. When there are two or more template components, they are spaced apart along the width of the bridge deck 13, for example... Figure 1 , Figure 2 The image shows a prefabricated template with three template components. Each template component includes two spaced-apart vertical wall templates 3, with the two vertical wall templates 3 of the same template component forming a molding cavity 4 for the corresponding auxiliary component 12. In this embodiment, some or all of the vertical wall templates 3 are suspended on the horizontal beam 1 by telescopic components 5, thereby connecting all or most of the templates into a whole for overall lifting, which can improve transportation efficiency while reducing manpower consumption.

[0041] In the specific implementation process, the bottom end of the column 2 located at the first end of the crossbeam 1 is provided with a first connecting structure, which can be a bolted connecting steel plate or other structure. This structure is mainly used to detachably connect the column 2 to the bridge deck 13, thereby supporting the first end of the crossbeam 1. The bottom end of the column 2 located at the second end of the crossbeam 1 is provided with a second connecting structure, which can also be a bolted connecting steel plate or other structure. This structure is mainly used to detachably connect the column 2 to the bridge deck or the side formwork 11 of the bridge deck box girder, thereby supporting the second end of the crossbeam 1.

[0042] It is worth noting that although the illustration in this embodiment shows the second connecting structure connected to the side formwork 11 of the bridge deck box girder, in actual application, it can also be adjusted according to the position of the outermost auxiliary component. For example, when the distance between the position of the outermost auxiliary component and the edge of the bridge deck 13 is large enough, the second connecting structure can be directly connected to the bridge deck 13.

[0043] In this embodiment, the vertical wall formwork 3 closest to the second end of the crossbeam 1 is defined as the outer formwork 301. Although the outer formwork 301 shown in this embodiment is directly hinged to the side formwork 11 of the bridge deck box girder, in actual application, the outer formwork 301 can also be hoisted onto the crossbeam 1. That is, in this embodiment, for the phrase "partial or all of the vertical wall formwork 3 are hoisted onto the crossbeam 1 via the telescopic member 5", there are two implementation methods for "partial or all of them".

[0044] In the first embodiment, some of the vertical wall formwork 3 are suspended on the horizontal beam 1 via expansion joints 5. This embodiment is suitable when the distance between the outermost auxiliary component and the edge of the bridge deck 13 is small. In this case, the outer formwork 301 is hinged to the side formwork 11 of the bridge deck box girder, and all other vertical wall formwork 3 except for the outer formwork 301 are suspended on the horizontal beam 1 via expansion joints 5. Figure 1 , Figure 2The structure shown is preferably provided. A retractable first tie rod 6, such as a hydraulic cylinder, screw, pneumatic cylinder, electric cylinder, or electric telescopic rod, is hinged between the outer template 301 and the side template 11 of the bridge deck box girder to automatically control the closing or demolding of the outer template 301.

[0045] In the second embodiment, all vertical wall formwork 3 are suspended on the horizontal beam 1 via telescopic components 5. This embodiment is suitable when the distance between the outermost auxiliary component and the edge of the bridge deck 13 is large. In this case, all vertical wall formwork 3 are suspended on the horizontal beam 1 via telescopic components 5. Preferably, the outer formwork 301 is also hinged to the adjacent column 2 with a telescopic first tie rod 6, such as a hydraulic cylinder, screw, pneumatic cylinder, electric cylinder, or electric telescopic rod, for automatic control of the outer formwork 301 closing or demolding.

[0046] In this embodiment, the vertical wall formwork 3 closest to the first end of the crossbeam 1 is defined as the inner formwork 302. Similar to the second embodiment of the outer formwork 301, the inner formwork 302 is suspended on the crossbeam 1 via a telescopic member 5, and is hinged to the corresponding telescopic member 5. Preferably, a retractable second tie rod 7, such as a hydraulic cylinder, screw, pneumatic cylinder, electric cylinder, or electric telescopic rod, is hinged between the inner formwork 302 and the adjacent column 2 for automatic control of the inner formwork 302's mold closing or demolding.

[0047] In a preferred embodiment, when the number of template components is two or more: in two adjacent template components, two vertical wall templates 3 that are close to each other are rigidly connected to form a double-sided template 303, i.e. Figure 1 , Figure 2 The diagram shows two double-sided templates 303, with each template 303 suspended from the crossbeam 1 by at least one telescopic member 5. In this embodiment, the double-sided template 303 is preferably suspended from the crossbeam 1 using only one telescopic member 5. This means that by rigidly connecting two adjacent vertical wall templates 3 in two adjacent template assemblies to form the double-sided template 303, not only is the overall structural strength of the precast template improved during the molding process, but the two vertical wall templates 3 can also be hoisted using a single telescopic member 5, thus reducing costs.

[0048] Specifically, in this embodiment, the telescopic component 5 can be a hydraulic cylinder, or other devices capable of telescopic movement such as a screw, pneumatic cylinder, electric cylinder, or electric push rod. As a preferred embodiment, connecting angle steel or connecting tie rods 8 are detachably installed on the top of the two vertical wall templates 3 of the same template assembly, further enhancing the structural strength of the precast template during concrete pouring.

[0049] In a preferred embodiment, a sliding sleeve 9 is slidably connected to the crossbeam 1. The sliding sleeve 9 has a stroke that slides along the length of the crossbeam 1. One end of the telescopic member 5 is connected to the sliding sleeve 9, and the other end is connected to the corresponding vertical wall template 3. Simultaneously, a telescopic drive member 10 is hinged between the crossbeam 1 and the sliding sleeve 9 to drive the sliding sleeve 9 to slide along the length of the crossbeam 1, allowing the telescopic member 5 and the vertical wall template 3 to slide along the length of the crossbeam 1, thereby effectively adapting to changes in the wall structure of the auxiliary components to be formed. Specifically, the telescopic drive member 10 is any one of a hydraulic cylinder, a pneumatic cylinder, an electric cylinder, and an electric telescopic rod.

[0050] In this embodiment, the process of prefabricating the auxiliary component 12 using the prefabricated template is as follows:

[0051] First, install the column 2 into place on the bridge deck 13 or the side formwork 11 of the bridge deck box girder;

[0052] Then, the telescopic component 5 is extended so that each vertical wall template 3 hoisted by the telescopic component 5 is lowered to the preset position. At the same time, the outer template 301 and the inner template 302 are rotated inward to the preset position by the first tie rod 6 and the second tie rod 7.

[0053] Then, install the template connecting angle steel or connecting tie rod 8 on each template assembly, connect each vertical wall template 3 into a whole, and then pour concrete into each forming cavity 4.

[0054] After the concrete reaches a certain strength, the connecting angle steel or connecting tie rod 8 is removed. The outer formwork 301 and inner formwork 302 are rotated outward to the preset position by the first tie rod 6 and the second tie rod 7, thus completing the demolding of the outer formwork 301 and inner formwork 302.

[0055] Then, control the telescopic component 5 to shorten, lift each vertical wall formwork 3 up, and separate it from the concrete;

[0056] Finally, as Figure 4 The precast formwork is lifted as a whole and transferred to another beam that needs to be precast, and the next cycle begins.

[0057] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A form for the integral precasting of box girder bridge deck appurtenances, characterized by, Includes a template assembly, a crossbeam (1), and columns (2) at both ends of the crossbeam (1); The number of template components is the same as the number of auxiliary components (12) to be formed. When the number of template components is two or more, each template component is distributed at intervals along the width direction of the bridge deck (13). The template assembly includes two spaced vertical wall templates (3), and the two vertical wall templates (3) of the same template assembly form a forming cavity (4) for the corresponding auxiliary component (12); Some or all of the vertical wall formwork (3) are suspended on the horizontal beam (1) by telescopic components (5).

2. The box girder deck appendage integral precast form of claim 1, wherein, The bottom end of the column (2) located at the first end of the crossbeam (1) is provided with a first connecting structure for detachably connecting to the bridge deck (13); The bottom end of the column (2) located at the second end of the crossbeam (1) is provided with a second connecting structure for detachably connecting to the bridge deck (13) or the side formwork (11) of the bridge deck box girder.

3. The box girder deck appendage integral precast form of claim 2, wherein, Define the vertical wall formwork (3) closest to the second end of the crossbeam (1) as the outer formwork (301); The outer template (301) is suspended on the crossbeam (1) via the telescopic member (5). The outer template (301) is hinged to the corresponding telescopic member (5), and a retractable first tie rod (6) is hinged between the outer template (301) and the adjacent column (2); or The outer template (301) is hinged to the side formwork (11) of the bridge deck box girder, and a telescopic first tie rod (6) is hinged between the outer template (301) and the side formwork (11) of the bridge deck box girder.

4. The box girder deck appendage integral precast form of claim 2, wherein, Define the vertical wall formwork (3) closest to the first end of the crossbeam (1) as the inner formwork (302); The inner template (302) is suspended on the crossbeam (1) by the telescopic member (5). The inner template (302) is hinged to the corresponding telescopic member (5), and the inner template (302) is hinged to the adjacent column (2) by a telescopic second tie rod (7).

5. The integral precast formwork for box girder bridge deck appurtenances according to any one of claims 1 to 4, wherein, When the number of template components is two or more: In two adjacent template assemblies, two adjacent vertical wall templates (3) are rigidly connected to form a double-sided template (303), and the double-sided template (303) is suspended on the crossbeam (1) by at least one of the telescopic members (5).

6. The integral precast formwork for box girder bridge deck appurtenances according to any one of claims 1 to 4, wherein, The tops of the two vertical wall formworks (3) of the same formwork assembly are detachably fitted with connecting angle steel or connecting tie rods (8).

7. The integral precast formwork for box girder bridge deck appurtenances according to any one of claims 1 to 4, wherein, A sliding sleeve (9) is slidably connected to the crossbeam (1), and the sliding sleeve (9) has a stroke that slides along the length direction of the crossbeam (1); One end of the telescopic component (5) is connected to the sliding sleeve (9), and the other end is connected to the corresponding vertical wall template (3).

8. The integral prefabricated formwork for box girder bridge deck auxiliary components according to claim 7, characterized in that, It also includes a telescopic drive member (10), the two ends of which are respectively hinged to the crossbeam (1) and the sliding sleeve (9) to drive the sliding sleeve (9) to slide along the length direction of the crossbeam (1).

9. The box girder deck appendage integral precast form of claim 8, wherein, The telescopic drive component (10) is any one of a hydraulic cylinder, a pneumatic cylinder, an electric cylinder, and an electric telescopic rod.

10. The integral precast formwork for box girder bridge deck appurtenances according to any one of claims 1 to 4, wherein, The telescopic component (5) is any one of a hydraulic cylinder, a pneumatic cylinder, an electric cylinder, and an electric telescopic rod.

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