Bridge bearing grouting protection device

Abstract

The utility model provides a kind of bridge pier grouting protection device, it is related to the technical field of bridge construction, including frame and protective tarpaulin, the frame is connected by multiple square steel, the protective tarpaulin is fixed in the four around of frame, the frame is fixedly connected with lifting ring assembly, frame can be fixed in the just above of support by lifting ring assembly, frame and protective tarpaulin combination form four around all-enclosing protective structure, provide dustproof, waterproof, windproof, heat preservation integrated protection for pier grouting, ensure grouting quality, the frame connected by square steel provides high-strength rigid support, can bear protective tarpaulin dead weight and wind load, ensure that protective structure remains stable under various working conditions.

Description

Technical Field

[0001] This utility model relates to the technical field of bridge construction, and more specifically, to a grouting protection device for bridge bearings. Background Technology

[0002] Bridge bearings are important force transmission devices. Their design must consider sufficient strength, stiffness, and free rotation or movement. Bearing grout is an important material used to support and protect the bearings. It not only requires high strength but also needs to reach the design strength in a short time. This requires controlling the temperature difference and various factors in the environment during construction to avoid cracks in the bearing grout layer. In the process of bridge bearing grouting, the traditional practice is to protect the area around the grouting layer after grouting, usually with cotton felt. However, the protective effect is not good, especially in low-temperature environments. The heat dissipation brought by the wind cannot guarantee the temperature and humidity of the bearing grout, causing the bearing grouting layer to crack. The strength cannot reach the design requirements within a certain period of time, which reduces the quality of the grouting work. Utility Model Content

[0003] This invention aims to solve the problem of poor windproof and heat insulation effects during bearing grouting.

[0004] To address the aforementioned problems, this utility model provides a bridge bearing grouting protection device, comprising a frame and a protective tarpaulin. The frame is composed of multiple square steel bars connected together, and the protective tarpaulin is fixed around the frame. A lifting ring assembly is fixedly connected to the frame, which can fix the frame directly above the bearing.

[0005] The bridge bearing grouting protection device provided by this utility model has the following beneficial effects compared with the prior art: The frame and protective tarpaulin combine to form a fully enclosed protective structure, providing integrated protection against dust, water, wind, and heat for the grouting of the supports, ensuring the quality of grouting. The frame, connected by square steel, provides high-strength rigid support, capable of withstanding the weight of the protective tarpaulin and wind loads, ensuring the stability of the protective structure under various working conditions.

[0006] Furthermore, the lifting ring assembly includes an upper lifting ring and a lower lifting ring. The upper lifting ring is fixed to the top of the frame, and a lifting rope is fixedly connected to the upper lifting ring. The other end of the lifting rope is connected to the steel bars pre-embedded in the beam surface. The lower lifting ring is fixed to the bottom of the frame, and a lifting rope is also fixedly connected to the lower lifting ring. The other end of the lifting rope is connected to the steel wedge driven into the ground.

[0007] Furthermore, the number of upper lifting rings is at least four, and they are respectively arranged on the long sides of the top of the frame.

[0008] Furthermore, the number of lower lifting rings is at least four, which are respectively arranged on the long sides of the bottom of the frame.

[0009] Furthermore, the cross-sectional dimensions of the square steel are 75mm × 75mm.

[0010] Furthermore, the frame includes four right-angle groups, each of which is welded from two square steel bars, and the four right-angle groups are connected by bolts to form a rectangular frame.

[0011] Furthermore, the dimensions of the frame are 8.0m × 3.4m × 2m.

[0012] Furthermore, the protective tarpaulin is fixed to the frame by rivets.

[0013] Furthermore, the protective tarpaulin has a double-layer composite structure, with an outer layer of polyester Oxford cloth and an inner layer of polyethylene insulation cotton.

[0014] Furthermore, anti-loosening washers are provided at the connection points between adjacent right-angle groups and bolts. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the protective tarpaulin of this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Frame; 2. Square steel; 3. Protective tarpaulin; 4. Lifting ring assembly; 41. Upper lifting ring; 42. Lower lifting ring. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings showing multiple embodiments according to this application. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.

[0018] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing specific embodiments only and is not intended to limit this application; the terms "comprising," "including," "having," "containing," etc., in the description, claims, and accompanying drawings of this application are open-ended terms. Therefore, "comprising," "including," or "having" refers to, for example, a method or apparatus having one or more steps or elements, but is not limited to having only these one or more elements. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0021] It should be emphasized that when the term "comprising / including" is used in this specification, it is used to explicitly indicate the presence of the stated feature, integer, step, or component, but does not exclude the presence or addition of one or more other features, integers, steps, parts, or groups of features, integers, steps, or parts.

[0022] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0023] See Figure 1 and 2 A bridge bearing grouting protection device according to an embodiment of the present invention includes a frame 1 and a protective tarpaulin 3. The frame 1 is composed of multiple square steel bars 2 connected together. The protective tarpaulin 3 is fixed around the frame 1. A lifting ring assembly 4 is fixedly connected to the frame 1, and the frame 1 can be fixed directly above the bearing through the lifting ring assembly 4.

[0024] In this embodiment, the frame 1 and the protective tarpaulin 3 are combined to form a fully enclosed protective structure, providing integrated protection against dust, water, wind, and heat for the grouting of the support, ensuring the quality of grouting. The frame, connected by square steel 2, provides high-strength rigid support, which can withstand the weight of the protective tarpaulin 3 and wind load, ensuring that the protective structure remains stable under various working conditions.

[0025] It should be noted that the lifting ring assembly 4 can fix the frame 1 directly above the support. Here, "directly above" does not mean that the frame 1 is completely detached from the support and positioned directly above it; rather, the frame 1 needs to cover a portion of the upper part of the support (e.g., Figure 1 (as shown in the image) to achieve better windproof and heat insulation effects.

[0026] See Figure 1 Optionally, the lifting ring assembly 4 includes an upper lifting ring 41 and a lower lifting ring 42. The upper lifting ring 41 is fixed to the top of the frame 1, and a lifting rope is fixedly connected to the upper lifting ring 41. The other end of the lifting rope is connected to the steel bars embedded in the beam surface. The lower lifting ring 42 is fixed to the bottom of the frame 1, and a lifting rope is also fixedly connected to the lower lifting ring 42. The other end of the lifting rope is connected to the steel wedge driven into the ground.

[0027] In this embodiment, the upper lifting ring 41 is connected to the pre-embedded steel bars on the beam surface by a lifting rope, providing an upward stable tension. The lower lifting ring 42 is connected to the ground steel wedge by a lifting rope, providing a downward anchoring force, ensuring that the protective device does not shift or shake in strong winds or vibration environments, thus ensuring construction safety and grouting quality. By adjusting the length of the upper and lower lifting ropes, the position of the protective device can be precisely adjusted to ensure that it accurately covers the top of the support. This method is suitable for bridge supports of different heights and can flexibly adapt to various construction environments.

[0028] Optionally, the number of upper lifting rings 41 is at least four, which are respectively arranged on the long sides of the top of the frame 1.

[0029] In this embodiment, the four upper lifting rings 41 are evenly distributed to ensure that the upper tension is evenly distributed, preventing the frame 1 from deforming or tilting and ensuring overall stability.

[0030] Optionally, the number of lower lifting rings 42 is at least four, which are respectively arranged on the long sides of the bottom of the frame 1.

[0031] In this embodiment, four lower lifting rings 42 are evenly distributed at the bottom of the frame. By connecting with ground steel wedges, they provide a balanced downward anchoring force to prevent the frame 1 from being blown up or displaced by the wind.

[0032] Optionally, the cross-sectional dimensions of the square steel 2 are 75mm × 75mm.

[0033] In this embodiment, 75mm×75mm square steel 2 is selected to provide sufficient bending and shear strength to ensure that the frame 1 does not deform when subjected to wind loads and construction loads, meet the stability requirements of large-span structures, and prevent the protective tarpaulin 3 from tearing or failing due to deformation of the frame 1.

[0034] Optionally, the frame 1 includes four right-angle groups, each of which is welded together from two square steel bars 2, and the four right-angle groups are connected by bolts to form a rectangular frame 1.

[0035] In this embodiment, the design of the right-angle group and bolt connection makes the frame 1 easy to assemble and disassemble, improves construction efficiency, facilitates transportation and storage, saves space, and reduces transportation costs.

[0036] Optionally, the frame 1 has dimensions of 8.0m × 3.4m × 2m.

[0037] In this embodiment, the dimensions of 8.0m×3.4m×2m ensure coverage of the standard bridge bearing and its surrounding area, providing ample operating space. However, for bridge bearings of special dimensions, the dimensions of frame 1 need to be adapted accordingly.

[0038] Optionally, the protective tarpaulin 3 is fixed to the frame 1 by rivets.

[0039] In this embodiment, the rivet fixing provides a reliable connection, ensuring that the protective tarpaulin 3 does not loosen or fall off under wind load and during construction.

[0040] Optionally, the protective tarpaulin 3 has a double-layer composite structure, with the outer layer being polyester Oxford cloth and the inner layer being polyethylene insulation cotton.

[0041] In this embodiment, the outer layer of polyester Oxford cloth provides high strength, wear resistance, and anti-aging properties, extending the service life of the device; the inner layer of polyethylene insulation cotton provides good insulation performance, maintains the temperature stability of the grouting area, and prevents the grouting material from cracking or reducing its strength due to temperature changes. The combination of the two further improves the windproof and heat-insulating effect.

[0042] Optionally, anti-loosening washers are provided at the connection points between adjacent right-angle groups and bolts.

[0043] In this embodiment, anti-loosening washers are provided at the bolt connections to prevent bolts from loosening due to vibration or long-term use, ensuring that the frame structure remains stable at all times.

[0044] Although the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A bridge bearing grouting protection device, characterized in that, It includes a frame (1) and a protective tarpaulin (3). The frame (1) is made of multiple square steel bars (2) connected together. The protective tarpaulin (3) is fixed around the frame (1). A lifting ring assembly (4) is fixedly connected to the frame (1). The frame (1) can be fixed directly above the support by the lifting ring assembly (4).

2. The bridge bearing grouting protection device according to claim 1, characterized in that, The lifting ring assembly (4) includes an upper lifting ring (41) and a lower lifting ring (42). The upper lifting ring (41) is fixed to the top of the frame (1), and a lifting rope is fixedly connected to the upper lifting ring (41). The other end of the lifting rope is connected to the steel bar embedded in the beam surface. The lower lifting ring (42) is fixed to the bottom of the frame (1), and a lifting rope is also fixedly connected to the lower lifting ring (42). The other end of the lifting rope is connected to the steel wedge driven into the ground.

3. A bridge bearing grouting protection device according to claim 2, characterized in that, The number of the upper lifting rings (41) is at least 4, which are respectively set on the long sides of the top of the frame (1).

4. A bridge bearing grouting protection device according to claim 2, characterized in that, The number of lower lifting rings (42) is at least 4, which are respectively set on the long sides of the bottom of the frame (1).

5. A bridge bearing grouting protection device according to claim 1, characterized in that, The cross-sectional dimensions of the square steel (2) are 75mm × 75mm.

6. A bridge bearing grouting protection device according to claim 1, characterized in that, The frame (1) includes four right-angle groups, each of which is welded together from two square steels (2). The four right-angle groups are connected by bolts to form a rectangular frame (1).

7. A bridge bearing grouting protection device according to claim 6, characterized in that, The dimensions of the frame (1) are 8.0m × 3.4m × 2m.

8. A bridge bearing grouting protection device according to claim 1, characterized in that, The protective tarpaulin (3) is fixed to the frame (1) by rivets.

9. A bridge bearing grouting protection device according to claim 1, characterized in that, The protective tarpaulin (3) has a double-layer composite structure, with the outer layer being polyester Oxford cloth and the inner layer being polyethylene insulation cotton.

10. A bridge bearing grouting protection device according to claim 6, characterized in that, Anti-loosening washers are provided at the connection points between the adjacent right-angle groups and the bolts.

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