Cantilever tripod for bridge deck construction

Abstract

The utility model provides a cantilever tripod for bridge deck construction, which is arranged at the corner of the side wall of a steel box girder and an end plate and comprises a support frame and a template. The supporting frame is composed of a connecting vertical rod, a horizontal rod, a vertical supporting rod and an inclined rod, and a stable structure is formed. The connecting vertical rods are fixed to the end plates, vertical supporting rods are distributed on the horizontal rods, and the inclined rods are connected with the side wall of the steel box girder and the vertical supporting rods. The adjusting assembly and the supporting table are arranged on the top of the vertical supporting rod. The formwork comprises a connecting rod and a plate face on the connecting rod, and the adjusting mechanism can drive the supporting table to move to ensure that the plate face is matched with a pouring bridge deck in shape. The cantilever tripod for bridge deck construction solves the problems that a scaffold needs to be erected from the ground at present, and the cantilever tripod is suitable for building shape diversity such as different shapes or angles of the bottom face of a pouring object.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a cantilever tripod for bridge deck construction. Background Art

[0002] During the concrete pouring process for steel box girder flanges, the erection of formwork support platforms presents multiple challenges. This is particularly true for new urban overpasses and bridges spanning rivers and valleys in mountainous areas. A lack of available space prevents the erection of scaffolding from the ground, directly impacting both construction feasibility and safety. First, the limited construction area means many bridges lack available ground support points beneath them, limiting the use of traditional support systems. Furthermore, urban environments often present obstacles such as other buildings, traffic, and underground pipelines, further exacerbating this space shortage. Second, due to the diverse architectural shapes, the main structure may be designed with variable cross-sections or angles, further complicating the design and installation of the support platforms. The support must be adaptable to various shapes and angles to ensure stability and safety during the pouring operation. Any design mismatch can cause the formwork to shift during the pouring process, compromising the quality of the concrete. Summary of the Invention

[0003] The problem to be solved by the utility model is to provide a cantilever tripod for bridge deck construction, which solves the current need to erect scaffolding from the ground and adapts to the diversity of building shapes, such as the bottom surface of the cast object having different shapes or angles.

[0004] The top end of the support leg is fixed with a link rod and the bottom end of the support leg is fixed with a link rod, and the bottom end of the support leg is fixed with a link rod.

[0005] Compared to existing technologies, this solution utilizes a cantilever tripod for bridge deck construction. This structure features a support frame, adjustment assembly, and support platform at the corner between the sidewall and end plate of the steel box girder. The adjustment assembly drives the support platform for vertical movement, ensuring that the upper surface of the deck matches the shape of the lower surface of the bridge deck after pouring. This achieves high construction precision and strong adaptability to the bridge deck's shape. This design eliminates the need for ground-level scaffolding and accommodates architectural designs with varying shapes or angles of the bottom surface of the poured object, significantly improving construction efficiency and safety. This structure offers significant structural flexibility and adaptability, eliminating the need for traditional scaffolding. This simplifies the construction process, reduces reliance on ground-level workspace, and mitigates the safety risks of working at height. The support frame provides a stable foundation, ensuring the safety and reliability of the formwork during pouring. Furthermore, its rapid adjustment capability enables the construction team to complete more pouring tasks in a shorter time, optimizing resource allocation, reducing environmental disruption, and minimizing the impact on surrounding traffic and residents.

[0006] Furthermore, the adjustment assembly includes an adjustment rod, the middle part of which is threadedly connected to an adjustment block, the lower end face of the adjustment block is abutted against the top end face of the vertical support rod, wherein the part of the adjustment rod below the adjustment block is inserted into the top of the vertical support rod, and the support platform is fixedly installed on the top of the adjustment rod, and the vertical movement of the adjustment rod and the support platform is driven by rotating the adjustment block. The threaded connection between the adjustment rod and the adjustment block provides a precise adjustment mechanism, which can achieve fine-tuning to ensure perfect fit between the board surface and the casting surface.

[0007] Furthermore, an elastic member is installed at the end of the inclined rod facing the side wall of the steel box girder, and the elastic member is used to resist the side wall of the steel box girder. This buffering performance reduces the dynamic response of the structure under external loads, thereby improving the stability and safety of the construction board.

[0008] Furthermore, a reinforcing rod is arranged between the vertical support rod and the inclined rod. The reinforcing rod, the vertical support rod and the inclined rod form a triangular support structure. The setting of the reinforcing rod strengthens the connection between the vertical support rod and the inclined rod, and improves the bending and torsion resistance of the overall support system.

[0009] Furthermore, the bottom surface of the support platform abuts against the top surface of the adjusting rod, and is fixed by welding at the abutting position.

[0010] Furthermore, the support frame is equipped with a guardrail connected to the other end of the crossbar away from the connecting vertical rod. The inner side of the guardrail abuts the end of the deck away from the connecting vertical rod. During the bridge deck construction process, the guardrail effectively prevents construction workers and equipment from accidentally falling or moving, providing excellent safety protection. The barrier formed by the guardrail can alert and protect workers, ensuring a safe construction environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the utility model;

[0012] Figure 2 for Figure 1 A partial enlarged view of the boxed part;

[0013] Diagram: 1. Steel box girder; 2. End plate; 3. Support frame; 3.1. Connecting vertical rod; 3.2. Horizontal rod; 3.3. Vertical support rod; 3.4. Inclined rod; 3.5. Reinforcement rod; 3.6. Elastic block; 3.7. Guardrail; 4. Formwork; 5. Adjustment assembly; 5.1. Adjustment rod; 6. Adjustment block; 7. Support platform; 8. Connecting rod; 9. Plate surface. DETAILED DESCRIPTION

[0014] Before describing in detail any embodiment of the present invention, it should be understood that the present invention is not limited in its application to the construction and arrangement details of the components set forth in the following description or illustrated in the following figures. The present invention is capable of other embodiments and can be practiced or carried out in various ways. In addition, it should be understood that the words and terms used herein are for descriptive purposes and should not be considered restrictive. The use of "including" or "having" and variations thereof herein is intended to cover the items and their equivalents set forth below, as well as additional items. Unless otherwise specified or limited, the terms "mount", "connect", "support" and "couple" and variations thereof are used broadly and cover direct mounting and indirect mounting, connection, support and coupling. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings.

[0015] Furthermore, on the first hand, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention 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 the above terms cannot be understood as limitations on the present invention; on the second hand, the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" cannot be understood as a limitation on the quantity.

[0016] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are provided for illustrative purposes only and are not intended to limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles described.

[0017] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0018] Please refer to Figure 1 、 Figure 2 A cantilever tripod for bridge deck construction is mainly used for the corner position of the side wall of the steel box girder 1 and the end plate 2. The cantilever mechanism includes a support frame 3 fixed on the lower end surface of the end plate 2 and a template 4 located above the support frame 3.

[0019] The support frame 3 comprises a connecting vertical rod 3.1, one end of which is fixed to the lower end surface of the end plate 2. A longitudinally arranged horizontal rod 3.2 is positioned in the middle of the connecting vertical rod 3.1, and a plurality of vertical support rods 3.3 are arranged longitudinally and spaced apart on the horizontal rod 3.2. Furthermore, a tilting rod 3.4 is fixed to the other end of the connecting vertical rod 3.1. One end of the tilting rod 3.4 abuts against the side wall of the steel box girder 1, and the other end is connected to the bottom of the plurality of vertical support rods 3.3.

[0020] A support platform 7 is located above the vertical support rod 3.3, and an adjustment assembly 5 is mounted on top of the vertical support rod 3.3. The support platform 7 is located above the adjustment assembly 5. The formwork 4 is composed of connecting rods 8 placed on the support platform 7, and a slab 9 is laid on the connecting rods 8. The adjustment mechanism drives the support platform 7 to move vertically to ensure that the shape of the upper surface of the slab 9 matches the lower surface of the bridge deck after casting.

[0021] The adjustment assembly 5 specifically consists of an adjustment rod 5.1, the middle portion of which is threadedly connected to an adjustment block 6. The lower end of the adjustment block 6 abuts against the top of the vertical support rod 3.3. The portion of the adjustment rod 5.1 below the adjustment block 6 is inserted into the top of the vertical support rod 3.3. The support platform 7 is fixedly mounted on top of the adjustment rod 5.1. Rotating the adjustment block 6 allows for vertical movement of the adjustment rod 5.1 and the support platform 7.

[0022] In addition, elastic members are installed at the ends of the tilting rods 3.4 facing the side walls of the steel box girder 1. These elastic members are used to abut against the side walls of the steel box girder 1. Reinforcement rods 3.5 are also arranged between the vertical support rods 3.3 and the tilting rods 3.4, forming a reinforced triangular support structure, enhancing the overall stability and load-bearing capacity.

[0023] The bottom surface of the support platform 7 abuts against the top surface of the adjusting rod 5.1 and is fixed by welding at the abutting position, thereby further ensuring the stability of the structure.

[0024] In addition, a guardrail 3.7 is provided on the support frame 3. The guardrail 3.7 is connected to the other end of the horizontal rod 3.2 away from the vertical rod 3.1. The inner side of the guardrail 3.7 abuts against the end of the board 9 away from the vertical rod 3.1, providing additional safety.

[0025] The above description is merely a description of the preferred embodiment of the present invention and should not be construed as limiting the claims. The present invention is not limited to the above embodiment, and variations in its specific structure are permitted. All variations within the scope of the independent claims of the present invention are within the scope of protection of the present invention.

Claims

1. A cantilever tripod for bridge deck construction, arranged at the corner between the side wall of a steel box girder (1) and an end plate (2), characterized in that: The invention comprises a support frame (3) fixed at the lower end surface of the end plate (2) and a template (4) located above the support frame (3); the support frame (3) comprises a connecting vertical rod (3.1) with one end fixed to the lower end surface of the end plate (2); a horizontal rod (3.2) placed in the longitudinal direction is fixed at the middle of the connecting vertical rod (3.1); vertical support rods (3.3) are arranged at intervals in the longitudinal direction on the horizontal rod (3.2); an inclined rod (3.4) is fixed to the other end of the connecting vertical rod (3.1); one end of the inclined rod (3.4) is fixed to the bottom surface of the end plate (2); One end of the vertical support rod (3.3) is abutted against the side wall of the steel box girder (1), and the other end is fixed to the bottom of the vertical support rod (3.3). An adjustment component (5) is provided on the top of the vertical support rod (3.3). A support platform (7) is provided above the adjustment component (5). The template (4) includes a connecting rod (8) placed on the support platform (7) and a plate surface (9) laid on the connecting rod (8). The adjustment component (5) drives the support platform (7) to move vertically until the upper surface of the plate surface (9) matches the shape of the lower surface of the bridge deck after casting.

2. The cantilever tripod for bridge deck construction according to claim 1, characterized in that: The adjustment assembly (5) comprises an adjustment rod (5.1), the middle portion of the adjustment rod (5.1) is threadedly connected to an adjustment block (6), the lower end surface of the adjustment block (6) abuts against the top end surface of the vertical support rod (3.3), wherein the portion of the adjustment rod (5.1) located below the adjustment block (6) is plugged into the top of the vertical support rod (3.3), and the support platform (7) is fixedly mounted on the top of the adjustment rod (5.1), and the adjustment rod (5.1) and the support platform (7) are driven to move vertically by rotating the adjustment block (6).

3. The cantilever tripod for bridge deck construction according to claim 1, characterized in that: An elastic member is installed at the end of the tilting rod (3.4) facing the side wall of the steel box beam (1), and the elastic member is used to abut against the side wall of the steel box beam (1).

4. The cantilever tripod for bridge deck construction according to claim 1, characterized in that: A reinforcing rod (3.5) is arranged between the vertical supporting rod (3.3) and the tilting rod (3.4); the reinforcing rod (3.5), the vertical supporting rod (3.3), and the tilting rod (3.4) together form a triangular supporting structure.

5. The cantilever tripod for bridge deck construction according to claim 2, characterized in that: The bottom surface of the support platform (7) abuts against the top surface of the adjusting rod (5.1), and fixation is achieved by welding at the abutting position.

6. The cantilever tripod for bridge deck construction according to claim 1, characterized in that: The support frame (3) is further provided with a guardrail (3.7) connected to the other end of the horizontal rod (3.2) away from the connecting vertical rod (3.1), and the inner side of the guardrail (3.7) abuts against the end of the board surface (9) away from the connecting vertical rod (3.1).

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