General rapid installation formwork for bridge support grouting

Abstract

The utility model discloses a general fast installation template for bridge support grouting, which is positioned between a box girder and a cushion block and comprises four templates and a support component, each template comprises a vertical limb used as a mortar side die and a horizontal limb used for stable support, and the four templates are mutually enclosed around a fixed support to form a grouting die cavity; a vertical supporting assembly is arranged on a horizontal limb of the formwork and comprises a hollow sleeve fixed to the horizontal limb, a telescopic elastic piece is arranged at the bottom of the sleeve, a fixator is connected to the upper portion of the elastic piece, and when the elastic piece contracts, the tip end of the fixator abuts against the bottom face of the box girder to fix the whole formwork. The size of the formwork is adjusted through the sliding piece, grout leakage is prevented through the flexible sealing piece, and grouting quality is guaranteed; the elastic piece supports the beam bottom and fixes the formwork, displacement is prevented, meanwhile, the hole site of the fixator is convenient to operate, mounting and dismounting are easy, convenient and fast, and construction efficiency and construction quality are improved.

Description

Technical Field

[0001] The utility model relates to the field of bridge erection construction, and particularly relates to a general and quick installation template for bridge bearing grouting. Background Art

[0002] With the rapid development of the national economy, the construction of railway special lines, as an important part of infrastructure construction, has become one of the key projects promoted by the state. Among them, the fixed bearing, as the component with the most concentrated stress in the high-speed railway structure, the installation quality thereof is directly related to the overall stability and service life of the bridge, and further affects the efficiency and safety of railway operation. Therefore, ensuring the precise installation and high-quality grouting of the fixed bearing has become an important technical link in bridge construction.

[0003] At present, the bearing grouting templates widely used in construction are usually surrounded by angle steels, and the templates are fixed by applying concrete at the bottom of the angle steels to prevent displacement and deformation, so as to ensure the stability of the templates during the grouting process. However, due to the uneven surface between the template and the cushion block, the problem of grout leakage is likely to occur. In addition, there are many deficiencies in the way of fixing the template with concrete: it is necessary to wait for the concrete to solidify during installation, and when the template is reused, since the strength of the solidified concrete is relatively high, it is time-consuming and laborious to disassemble the template, seriously affecting the construction efficiency. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is: aiming at the deficiencies of the prior art, a general and quick installation template for bridge bearing grouting with simple production, low cost, high efficiency and quickness is provided.

[0005] The technical solution adopted by the utility model to solve the above technical problem is:

[0006] A general and quick installation template for bridge bearing grouting, which is located between the box girder and the cushion block, is characterized in that: it includes four templates and a support assembly. The template includes a vertical limb for serving as a side form of mortar and a horizontal limb for stable support. The four templates are mutually enclosed around the fixed bearing to form a grouting cavity. A vertical support assembly is arranged on the horizontal limb of the template. The support assembly includes a hollow sleeve fixed on the horizontal limb. An elastic member with telescopic function is arranged at the bottom of the sleeve. A fixator is connected above the elastic member. When the elastic member contracts, the tip of the fixator presses against the bottom surface of the box girder to fix the whole template.

[0007] According to the above technical solution, two of the four templates are in a group and are fixedly connected at the end to form an angular template assembly.

[0008] According to the above technical solution, a sliding member is arranged at one end of the template assembly. The sliding member is nested on the vertical limb of the connected template, and the template assembly can slide along the vertical limb to adjust the size of the grouting cavity.

[0009] According to the above technical solution, the fixture is provided with a through hole at the tip.

[0010] According to the above technical solution, at least one support assembly is provided on the horizontal limb of each template.

[0011] According to the above technical solution, a flexible seal is provided below the horizontal limb of the template.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. The support assembly of the present utility model includes an elastic member. When the elastic member is stressed and contracts, the tip of the fixture on it is driven to tightly press against the ground of the box girder, fixing the entire template. Through the holes provided at the tip of the fixture, pressure can be conveniently applied to separate the template, and the operation is simple.

[0014] 2. The present utility model can adjust the size of the template according to the on-site construction environment through the sliding member on the template assembly, and control the forming size of the mortar layer; a flexible seal is provided at the bottom of the template. By using its elastic deformation, the gap between the template and the surface of the cushion block is filled to prevent slurry leakage and ensure the grouting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 FIG. is a schematic diagram of the use state of a general quick-installation template for bridge bearing grouting provided by an embodiment of the present utility model;

[0017] Figure 2 FIG. is a schematic diagram of the structure of a general quick-installation template for bridge bearing grouting provided by an embodiment of the present utility model;

[0018] Figure 3 FIG. is a schematic diagram of the half structure of a general quick-installation template for bridge bearing grouting provided by an embodiment of the present utility model;

[0019] Figure 4 FIG. is a top view of a general quick-installation template for bridge bearing grouting provided by an embodiment of the present utility model;

[0020] In the figure: 1. Box girder; 2. Fixed bearing; 3. Mortar; 4. Fixture; 5. Sleeve; 6. Elastic member; 7. Template; 701. Vertical limb; 702. Horizontal limb; 8. Flexible seal; 9. Sliding member; 10. Template assembly; 11. Support assembly; 12. Cushion block. Detailed implementation manners

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. Usually, the components of the embodiments of this application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0022] It should be noted that like reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0023] In the description of this application, it should be noted that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships in which the products of this application are usually placed during use. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of this application. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.

[0024] In addition, the terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0025] In the description of this application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0026] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is less than that of the second feature.

[0027] The features and performance of this application will be further described in detail below in conjunction with embodiments.

[0028] As Figures 1-4 shown, the utility model provides a quick installation formwork for general bridge bearing grouting, which is located between the box girder 1 and the cushion block 12, and includes four formworks 7 and a support assembly 11.

[0029] In this embodiment, the formwork 7 is selected as an angle steel. The two sides of the angle steel are flat and perpendicular to each other to form an angle, which can serve as the horizontal limb 702 and the vertical limb 701 of the formwork 7. The fixed bearing 2 is a steel bearing. Two angle steels are taken as a group and welded at the end to form an angular formwork assembly 10. Two formwork assemblies 10 are enclosed around the steel bearing to form a rectangular grouting cavity. The horizontal limb 702 of the angle steel is placed on the cushion block 12, and the vertical limb 701 serves as the side formwork of the mortar 3. A sliding member 9 is welded to one end of the formwork assembly 10. The sliding member 9 is nested on the connected vertical limb 701 of the angle steel, and the formwork assembly 10 can slide along the vertical limb 701, thereby adjusting the size of the grouting cavity. During bridge construction, the sizes of the fixed bearings 2 corresponding to different beam types are different, and this grouting formwork can be applicable to the construction of different beam types.

[0030] In this embodiment, the support assembly 11 is arranged on the horizontal limbs 702 of the four angle steels, near the middle of the angle steel. At least one support assembly 11 is arranged on each angle steel to ensure that the supporting force on the beam bottom is evenly distributed and avoid deformation or displacement of the formwork 7 caused by uneven local stress. The support assembly 11 includes a hollow sleeve 5 arranged on the upper surface of the horizontal limb 702 of the angle steel. The sleeve 5 is circularly designed and fixed to the horizontal limb 702 of the angle steel by welding at the bottom. An elastic member 6 is arranged at the bottom of the sleeve 5, and the elastic member 6 is a spring. A fixator 4 is arranged above the spring, and a through hole is designed at the tip of the fixator 4.

[0031] In this embodiment, when installing the grouting formwork, the operator can use tools such as a screwdriver, a wrench or a steel bar to insert into the through hole at the tip of the fixator 4, apply downward pressure, and then adjust the position of the formwork 7 according to the on-site construction requirements. After releasing the pressure applied to the fixator 4, the resilience of the spring will push the tip of the fixator 4 against the bottom surface of the box girder 1, and at the same time make the horizontal limb 702 of the angle steel press tightly against the cushion block 12, thereby firmly fixing the formwork 7 and preventing it from displacing or deforming during the grouting process.

[0032] In this embodiment, the horizontal limbs 702 of the four angle steels that make up the grouting formwork can be stably placed on the cushion block 12, and a flexible seal 8 is provided between the horizontal limb 702 of the angle steel and the cushion block 12. The flexible seal 8 is an elastic rubber strip, which is bonded to the lower surface of the horizontal limb 702 of the angle steel and has good elasticity and deformation ability. After the grouting formwork is installed, the resilience of the spring causes the rubber strip to deform, fully filling the uneven gaps between the surface of the cushion block 12 and the formwork 7, effectively preventing the problem of mortar 3 leakage during the grouting process and improving the forming quality of the mortar 3.

[0033] In summary, the grouting formwork of the present utility model has a reasonable structural design, is easy to operate, has an efficient and fast installation process, can adapt to bridge bearings of different specifications, and the formwork can be reused, greatly improving the construction efficiency and the economy of the formwork. At the same time, the sealing performance is improved, ensuring the construction quality.

[0034] The embodiments described above are some, but not all, of the embodiments of the present application. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts fall within the scope of protection of the present application.

Claims

1. A universal quick installation template for bridge bearing grouting, located between the box beam and the pad, characterized in that: It includes four templates and support components. The templates include vertical limbs for serving as mortar side templates and horizontal limbs for stable support. The four templates are mutually surrounded by a fixed support to form a grouting cavity. The horizontal limbs of the templates are provided with vertical support components. The support components include a hollow sleeve fixed on the horizontal limb, a retractable elastic part is provided at the bottom of the sleeve, and a fixer is connected above the elastic part. When the elastic part contracts, the tip of the fixer presses against the bottom surface of the box beam to fix the entire template.

2. A universal quick installation template for bridge bearing grouting according to claim 1, characterized in that: Two of the four templates form a group and are fixedly connected at the ends to form an angled template assembly.

3. A universal quick installation template for bridge bearing grouting according to claim 1 or 2, characterized in that: A sliding piece is provided at one end of the template assembly, and the sliding piece is nested on the connected vertical limb of the template. The template assembly can slide along the vertical limb to adjust the size of the grouting cavity.

4. A universal quick installation template for bridge bearing grouting according to claim 1 or 2, characterized in that: The fixture is provided with a through hole on the tip.

5. A universal quick installation template for bridge bearing grouting according to claim 1 or 2, characterized in that: The support assembly is provided with at least one on the horizontal limb of each template.

6. A universal quick installation template for bridge bearing grouting according to claim 1 or 2, characterized in that: A flexible seal is provided below the horizontal limb of the template.

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