A tool for facilitating secondary surfacing of a T-beam bridge deck protective layer

Abstract

The utility model provides a kind of tool for T beam bridge deck protective layer secondary surfacing, it is related to bridge construction technical field.The tool includes frame body and travelling mechanism, frame body includes riding portion and support portion, riding portion is used to bear operating personnel, one end of support portion is fixedly connected on riding portion, and the other end extends to the top of ballast retaining wall outward;Travelling mechanism is set on support portion, for supporting frame body moves on ballast retaining wall;The bottom height of riding portion is lower than the installation height of travelling mechanism, so that riding portion is located between ballast retaining wall and suspended on the top of bearing surface.The utility model is suspended by structure design, so that operating personnel need not tread on unhardened concrete surface to carry out surfacing operation, avoid the safety risk of high-altitude operation, reduce the difficulty of secondary surfacing, improve construction efficiency and construction quality.The tool structure is simple, easy to make, reusable, with good economic benefit.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, specifically to a tooling for facilitating the secondary finishing of the protective layer of a T-beam bridge deck. Background Technology

[0002] T-beam bridges are a common type of bridge structure, and their decks typically consist of a bearing surface and retaining walls on both sides of the bearing surface. To protect the bridge deck structure and improve its durability, a protective layer needs to be poured onto the T-beam bridge deck. During the construction of the protective layer, concrete finishing is a crucial step that directly affects the surface quality of the protective layer and the overall construction effect.

[0003] In traditional T-beam bridge deck protective layer pouring construction, concrete finishing work typically requires two workers. These workers need to repeatedly finish the bridge deck protective layer to ensure the smoothness and density of the concrete surface. In actual construction, when performing a second finishing operation on the middle section of the bridge deck, workers need to step directly on the freshly poured concrete surface; while when performing a second finishing operation on the edges of the bridge deck, workers need to stand on the retaining wall to perform the operation.

[0004] The aforementioned traditional construction methods have the following problems: First, the repeated stepping of construction workers on the freshly poured concrete surface damages it, significantly increasing the difficulty of secondary finishing and requiring more time and effort for repairs, thus significantly reducing construction efficiency. Second, construction workers standing on the retaining wall to perform edge finishing work falls under the category of high-altitude work, posing significant safety hazards. Workers are at risk of falls and other accidents, significantly increasing operational safety risks. Third, the entire finishing process is time-consuming, increasing both time and labor costs and impacting the overall construction progress. Utility Model Content

[0005] The purpose of this utility model is to provide a tooling for facilitating the secondary finishing of the protective layer of T-beam bridge decks, so as to solve the technical problems of low construction efficiency and high safety risks in the traditional secondary finishing of the protective layer of T-beam bridge decks.

[0006] To achieve the above objectives, this utility model employs the following technical solution: A tooling fixture for facilitating secondary finishing of the protective layer of a T-beam bridge deck, the T-beam bridge deck comprising a bearing surface and retaining walls disposed on both sides of the bearing surface, comprising: The frame includes a seating section and a support section. The seating section is used to carry workers. One end of the support section is fixedly connected to the seating section, and the other end extends outward to the top of the retaining wall. A walking mechanism, mounted on the support, is used to support the frame to move on the retaining wall; The bottom height of the seating unit is lower than the installation height of the walking mechanism, so that the seating unit is located between the ballast walls and suspended above the bearing surface.

[0007] Furthermore, the seating section is a rectangular box frame structure, and the lateral dimension of the rectangular box frame is smaller than the width of the bearing surface, so that gaps are formed between the two sides of the rectangular box frame and the retaining wall.

[0008] Furthermore, the riding part is provided with guide mechanisms on both sides, which cooperate with the inner side of the retaining wall to guide the tooling to move along the retaining wall.

[0009] Furthermore, the guiding mechanism includes a guide wheel, the diameter of which is adapted to the width of the gap.

[0010] Furthermore, the traveling mechanism includes rollers mounted at the end of the support for rolling on the upper surface of the retaining wall.

[0011] Furthermore, the bottom of the seating section has a hollow structure, including multiple longitudinally arranged steel sections, with observation and operation spaces formed between adjacent steel sections.

[0012] Furthermore: the steel section is square steel, and multiple square steel sections are welded together to form an integral frame.

[0013] Furthermore: the seating area is located within the concave space formed by the bearing surface and the two side retaining walls, and the bottom of the seating area maintains a preset distance from the bearing surface.

[0014] Furthermore, the roller is a rubber roller.

[0015] Compared with the prior art, the present invention has the following advantages: First, by using a combination of a frame and rollers, construction workers can stand on the seating section of the frame to perform secondary finishing work without having to step directly on the freshly poured concrete surface. This avoids damage to the concrete surface, reduces the difficulty of secondary finishing, and improves construction efficiency. At the same time, construction workers no longer need to stand on the retaining wall for high-altitude work, eliminating the safety hazard of falls from heights and significantly reducing construction safety risks.

[0016] Second, by setting rollers at the ends of the support and placing the rollers on the upper surface of the retaining wall, the tooling can be moved flexibly on the bridge deck. Construction workers can continuously carry out finishing work as the tooling moves, without having to frequently change work positions, which greatly improves the continuity of work and construction efficiency. Attached Figure Description

[0017] Figure 1 This is a front view schematic diagram of the present invention when it is installed on a bridge deck; Figure 2 This is a top view schematic diagram of the present invention when it is installed on a bridge deck; In the picture: 1. Seating section; 1.1. Steel section; 2. Support section; 3. Rollers; 4. Guide wheels; 5. Bearing surface; 6. Ballast retaining wall. Detailed Implementation

[0018] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] This invention provides a tooling for facilitating secondary finishing of the protective layer on a T-beam bridge deck. This tooling is suitable for T-beam bridge deck structures. The T-beam bridge deck includes a bearing surface 5 and retaining walls 6 on both sides of the bearing surface 5. The bearing surface 5 and the retaining walls 6 together form a concave spatial structure. During the construction of the bridge deck protective layer, the concrete is poured onto the bearing surface 5, requiring multiple finishing processes to ensure construction quality.

[0021] The tooling of this utility model mainly includes a frame and a traveling mechanism. The frame is welded from 1.1 section steel and includes two main components: a seating section 1 and a support section 2. The seating section 1 is designed as a rectangular box frame structure to support workers performing surface finishing operations. The lateral dimension of this rectangular box frame is carefully designed to be slightly smaller than the width of the bridge deck bearing surface 5, so that when the tooling is installed on the bridge deck, a certain gap will be formed between the two sides of the rectangular box frame and the inner side of the retaining wall 6. This design ensures that the tooling can be smoothly installed in the bridge deck structure and also reserves space for the subsequent installation of the guiding mechanism.

[0022] Support 2 is connected to the seating section 1, and its structural design fully considers stability and safety requirements. One end of support 2 is fixedly connected to the frame of the seating section 1, forming a robust integral structure through welding. The other end of support 2 extends outward, reaching above the retaining wall 6. A traveling mechanism is installed at the end of support 2, employing a roller 3 structure, with the rollers 3 resting directly on the upper surface of the retaining wall 6. In this way, the weight of the entire fixture is transferred to the rollers 3 through support 2, and then supported by the rollers 3 on the retaining wall 6, achieving stable support for the fixture on the bridge deck.

[0023] To ensure the stability and safety of the tooling as it moves across the bridge deck, guide mechanisms are installed on both sides of the seating section 1. These guide mechanisms utilize guide wheels 4, which are mounted on the sides of the seating section 1. The diameter of these guide wheels is precisely calculated to match the gap between the seating section 1 and the retaining wall 6. When the tooling moves across the bridge deck, the guide wheels 4 engage with the inner surface of the retaining wall 6, providing guidance and preventing deviation during movement. This ensures that the tooling always moves smoothly along the direction of the retaining wall 6.

[0024] A key design feature of this invention is the height relationship between the seating unit 1 and the traveling mechanism. The bottom height of the seating unit 1 is designed to be lower than the installation height of the rollers 3, allowing the seating unit 1 to be positioned within the concave space formed by the bearing surface 5 and the retaining walls 6 on both sides when the tooling is installed on the bridge deck. Simultaneously, a certain distance is maintained between the bottom of the seating unit 1 and the bearing surface 5, achieving the effect of the seating unit 1 being suspended above the bearing surface 5. This suspended design is the core innovation of this invention, fundamentally solving the problem of having to step on the incompletely cured concrete surface in traditional work methods. Workers can perform finishing work while standing inside the suspended seating unit 1, avoiding both the impact of stepping on the concrete surface on the finishing quality and the safety risks associated with working at height on the retaining walls 6.

[0025] To facilitate finishing work within the seating area 1, the bottom of the seating area 1 features a perforated structure. The bottom is composed of multiple longitudinally arranged steel sections 1.1, preferably square steel. These square steel sections are arranged parallel to each other longitudinally, with appropriate spacing between adjacent sections to create an observation and working space. The multiple square steel sections are welded together to form a single frame, ensuring structural strength while achieving the perforated effect at the bottom. Standing on this perforated platform, workers can clearly observe the condition of the concrete surface below and use finishing tools through the gaps in the perforations to perform secondary finishing work on the concrete surface.

[0026] In practical use, the rollers 3 are preferably made of rubber. Rubber rollers 3 have good elasticity and friction properties, allowing them to roll smoothly on the upper surface of the retaining wall 6. At the same time, the rubber material also has a certain shock-absorbing effect, reducing vibration of the tooling during movement and improving operator comfort and work accuracy. The good friction between the rubber rollers and the surface of the retaining wall 6 also ensures the stability of the tooling when moving and stopping.

[0027] When using the tooling of this invention for secondary finishing of the protective layer of a T-beam bridge deck, the tooling is first placed on the bridge deck using a hoisting device, ensuring that the rollers 3 accurately rest on the upper surfaces of the retaining walls 6 on both sides, with the seating unit 1 naturally suspended in the concave space above the bearing surface 5. After the operator enters the seating unit 1, they can push the tooling along the direction of the retaining walls 6. During the movement, the rollers 3 roll on the upper surface of the retaining walls 6, and the guide wheels 4 cooperate with the inner side of the retaining walls 6 to guide the tooling, ensuring its smooth and straight movement. When the tooling reaches the position where secondary finishing is required, the operator stops pushing, stands on the hollowed-out bottom platform, observes the concrete surface condition through the hollowed-out gaps, and uses a long-handled finishing tool to finish the concrete surface below. After finishing one area, the tooling is pushed forward to the next working position, repeating this process until the secondary finishing of the entire bridge deck is completed.

[0028] Compared to traditional methods, this invention significantly improves work efficiency. Traditional methods require two workers to repeatedly perform finishing work, while with this invention, one worker can independently complete the secondary finishing work. More importantly, this invention completely prevents workers from stepping on the uncured concrete surface, reducing the difficulty of secondary finishing and ensuring the smoothness of the concrete surface. Simultaneously, workers are always protected by the invention, eliminating the need for working at heights on the retaining wall 6, greatly reducing safety risks.

[0029] The tooling of this utility model has a simple structure, mainly welded from 1.1mm profile steel, with mature manufacturing technology and low cost. The tooling is lightweight, facilitating transportation and hoisting. Furthermore, this tooling is reusable, allowing for use in multiple projects with a single investment, resulting in good economic benefits. All components of the tooling use standard profiles and parts, simplifying maintenance and extending its service life.

[0030] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent transformations or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A tooling for facilitating secondary finishing of the protective layer of a T-beam bridge deck, wherein the T-beam bridge deck includes a bearing surface and retaining walls disposed on both sides of the bearing surface, characterized in that, include: The frame includes a seating section and a support section. The seating section is used to carry workers. One end of the support section is fixedly connected to the seating section, and the other end extends outward to the top of the retaining wall. A walking mechanism, mounted on the support, is used to support the frame to move on the retaining wall; The bottom height of the seating unit is lower than the installation height of the walking mechanism, so that the seating unit is located between the retaining walls and suspended above the bearing surface.

2. The tooling for facilitating secondary finishing of the protective layer on T-beam bridge decks according to claim 1, characterized in that, The seating section is a rectangular box frame structure, and the lateral dimension of the rectangular box frame is smaller than the width of the bearing surface, so that gaps are formed between the two sides of the rectangular box frame and the retaining wall.

3. The tooling for facilitating secondary finishing of the protective layer on T-beam bridge decks according to claim 2, characterized in that, The riding part is provided with guide mechanisms on both sides. The guide mechanisms cooperate with the inner side of the retaining wall to guide the tooling to move along the retaining wall.

4. The tooling for facilitating secondary finishing of the protective layer on T-beam bridge decks according to claim 3, characterized in that, The guiding mechanism includes a guide wheel, the diameter of which is adapted to the width of the gap.

5. The tooling for facilitating secondary finishing of the protective layer of T-beam bridge decks according to any one of claims 1 to 4, characterized in that, The traveling mechanism includes rollers mounted at the end of the support for rolling on the upper surface of the retaining wall.

6. The tooling for facilitating secondary finishing of the protective layer of T-beam bridge decks according to any one of claims 1 to 4, characterized in that, The bottom of the seating area has a hollow structure, which includes multiple longitudinally arranged steel sections, forming an observation and operation space between adjacent steel sections.

7. The tooling for facilitating secondary finishing of the protective layer on T-beam bridge decks according to claim 6, characterized in that, The steel section is square steel, and multiple square steel sections are welded together to form an integral frame.

8. The tooling for facilitating secondary finishing of the protective layer of T-beam bridge decks according to any one of claims 1 to 4, characterized in that, The seating area is located within the concave space formed by the bearing surface and the two side retaining walls, and the bottom of the seating area maintains a preset distance from the bearing surface.

9. The tooling for facilitating secondary finishing of the protective layer on a T-beam bridge deck according to claim 5, characterized in that, The roller is a rubber roller.

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