Prefabricated T-beam auxiliary construction structure

Abstract

The utility model discloses a prefabricated T-beam auxiliary construction structure in the technical field of bridge engineering construction, which comprises a prefabricated T-beam and a platform, the prefabricated T-beam comprises a wing plate, a web plate and a horseshoe, the wing plate is horizontally arranged, the web plate is vertically arranged below the wing plate, the web plate is connected with the middle of the wing plate, and the horseshoe is positioned at the bottom of the web plate. The platform comprises a plurality of steel pipes arranged side by side at intervals, the left ends and the right ends of the steel pipes are connected through connecting pipes perpendicular to the steel pipes, a flat plate is laid on the top of the platform, a protective net is arranged on the periphery of the top of the platform, a falling protector is arranged above the platform and connected with the platform through a steel cable, and two opposite supports are arranged on the bottom face of the platform. A rotating shaft penetrates through the support and is rotationally connected with the support, and rolling wheels penetrate through the two ends of the rotating shaft and are fixedly connected with the rotating shaft. The technical problems that in the prior art, workers are difficult to move, and safety is low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge engineering construction, in particular to a prefabricated T-beam auxiliary construction structure. Background Art

[0002] In bridge construction, most bridge superstructures are constructed using precast T-beams. These are overlapped on supports at the top of pier columns to form a simply supported structure. The joints between the ends of two adjacent precast T-beams are then cast to form a continuous beam. Due to the weight and load of the precast T-beams, the areas near the supports are subject to negative bending moments. This means the precast T-beams bend near the supports, causing tension on the upper part and compression on the lower part. This can easily cause cracking in the upper part of the precast T-beams, posing a safety risk. Therefore, steel strands are installed in the upper part of the precast T-beams for tensioning. This serves to resist deformation caused by negative bending moments and prevent cracking in the upper part of the precast T-beams.

[0003] Precast T-beams consist of wing plates, webs, and horseshoes. The wing plates are arranged horizontally, while the webs are arranged vertically below the wing plates. The webs are connected to the middle of the wing plates, and the horseshoes are located at the bottom of the webs, making contact with the supports. When negative moment tensioning is applied to the wing plates, the negative moment tensioning teeth are located below the wing plates. This negative moment tensioning operation is performed below the bridge deck, which is difficult due to the limited working space below the bridge deck. Construction is particularly dangerous in special areas such as high bridge piers and bridges spanning rivers, highways, or valleys. Traditional precast T-beam negative moment tensioning operations typically use a wooden springboard lowered to the horseshoes. Workers use a simple ladder to descend to the wooden springboard for negative moment tensioning. When personnel move, workers need to move the springboard and set it up again. This operating platform makes it difficult to move personnel and cannot guarantee the safety of personnel working at height. Utility Model Content

[0004] In order to solve the technical problems of difficulty in worker movement and low safety in existing devices, the utility model provides a prefabricated T-beam auxiliary construction structure which reduces the difficulty in worker movement and improves safety.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] The prefabricated T-beam auxiliary construction structure includes a prefabricated T-beam and a platform. The prefabricated T-beam includes a wing plate, a web plate and a horseshoe. The wing plate is arranged horizontally, the web plate is arranged vertically below the wing plate, the web plate is connected to the middle of the wing plate, and the horseshoe is located at the bottom of the web plate. The platform includes multiple steel pipes arranged in parallel and at intervals. The left and right ends of the multiple steel pipes are connected by connecting pipes arranged perpendicular to the steel pipes. A flat plate is laid on the top of the platform. A protective net is provided on the sides of the top of the platform. A fall arrester is provided above the platform. The fall arrester is connected to the platform through a steel cable. Two opposite supports are provided on the bottom of the platform. A rotating shaft is provided in the support. The rotating shaft is rotatably connected to the support. Rollers are provided at both ends of the rotating shaft. The rollers are fixedly connected to the rotating shaft. When in use, the rollers are placed on the horseshoes of two adjacent prefabricated T-beams. The horseshoes provide the support required for the rollers to slide, and the rollers can slide along the length direction of the prefabricated T-beams.

[0007] Furthermore, it also includes a power unit and a transmission shaft. The power unit is set on the platform, the transmission shaft is kept perpendicular to the two rotating shafts, both ends of the transmission shaft are respectively engaged with the rotating shaft through gears, and the output end of the power unit is engaged with the transmission shaft gear.

[0008] Furthermore, the steel pipe and the connecting pipe are both square pipes.

[0009] Furthermore, the connecting pipe and the steel pipe are connected via a connecting piece and fixed by welding.

[0010] Furthermore, an angle steel is welded and fixed on the upper surface of the platform, a connecting hole is opened on the angle steel, and the fall arrester is connected to the connecting hole through a steel cable.

[0011] Furthermore, a U-shaped clip is provided on one side of the platform along the sliding direction of the roller, and two open ends of the U-shaped clip are connected to the side of the platform.

[0012] Furthermore, the U-shaped card is made of galvanized steel.

[0013] The beneficial effects of the utility model are:

[0014] 1. By using multiple steel pipes arranged in parallel and at intervals to form a platform, laying a flat plate on the top of the platform, and setting up protective nets and fall arresters around it, the operational safety of construction workers can be significantly improved. By setting rollers, bottom supports and rotating shafts at the bottom of the platform, the entire operating platform can easily slide on the horseshoe at the bottom of the prefabricated T-beam. This design not only greatly improves the flexibility of the operation, allowing workers to quickly adjust to the required working position, but also does not require the additional construction or disassembly of temporary support structures, significantly improving work efficiency. Compared with the existing technology of using a springboard to connect to the prefabricated T-beam, this solution reduces the safety hazards caused by improper construction, ensures the stability of the platform during construction, and reduces the possibility of accidents.

[0015] 2. The introduction of a power unit and drive shaft enables automated movement of the operating platform, reducing the workload of workers manually pushing the platform and further improving work efficiency and safety. Gear meshing ensures smooth and reliable power transmission. Advantages of automated movement: Compared to traditional manual traction methods, using a power unit to drive platform movement significantly reduces manpower requirements and avoids the potential for loss of control during manual pushing and pulling, further ensuring construction safety. Furthermore, automated operation means more precise position control, which helps improve construction quality.

[0016] Enhanced efficiency: Electric drive enables smooth and rapid displacement, saving a lot of time. It is particularly suitable for situations where frequent changes of working points are required in large bridge construction.

[0017] 3. Using square tubes as structural materials enhances the rigidity and stability of the entire platform. Compared to other shapes such as round tubes, square tube structures have higher bending strength and torsional rigidity, demonstrating greater stability and durability when subjected to external loads. Due to their regular shape, they increase the contact surface between components that need to be connected, making them easier to connect with other structural components such as connectors.

[0018] 4. The connecting pipe and the steel pipe are fixed by welding with connecting plates to strengthen the integrity of the structure, ensuring that the connection between the components is firm and not easy to loosen, thereby ensuring safety and durability during use.

[0019] 5. Angle steel is welded on the surface of the platform and connection holes are opened for installing the fall arrester. This design simplifies the installation steps of the fall arrester, while ensuring that the fall arrester is firmly fixed on the platform, increasing the safety factor of high-altitude operations.

[0020] 6. A U-shaped card is installed on one side of the platform. This design provides workers with a clear and reliable traction point, allowing them to use ropes or other tools to pull the platform, which is especially important when there is no power supply or fine-tuning of the position is required.

[0021] 7. The U-shaped card is made of galvanized steel, which has good corrosion resistance and can maintain its mechanical properties for a long time in outdoor environments, extending the service life of the components and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the utility model from another perspective;

[0024] Figure 3 It is a schematic diagram of the connection between the steel pipe and the connecting pipe;

[0025] Figure 4 It is a schematic diagram of the structure of the utility model when in use;

[0026] Marked in the figure are, 1-steel pipe, 2-connecting pipe, 3-protective net, 4-fall arrester, 5-support, 6-rotating shaft, 7-roller, 8-power device, 9-transmission shaft, 10-connecting plate, 11-U-shaped card, 12-prefabricated T-beam, 13-negative bending moment tensioning tooth mouth. DETAILED DESCRIPTION

[0027] In order to make the objectives, technical solutions and advantages of the embodiments of the present application more clearly expressed, the present invention is further described below with reference to the accompanying drawings.

[0028] First of all, it needs to be stated that the technical solutions of the embodiments of the present application are clearly and completely described. The described embodiments are part of the embodiments of the present application and are not limitations of the present utility model. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of this application.

[0029] In the description of the present invention, it should be understood that the orientations or positional relationships indicated by terms such as "first", "second", "upper", "lower", "left", "right", "inner", "outer", "axial" or "radial" are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation structure and operation, and therefore cannot be understood as a limitation on the present invention.

[0030] It should be noted that, in this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0031] Reference Figures 1 to 4 , the utility model provides a prefabricated T-beam auxiliary construction structure.

[0032] like Figure 1 、 Figure 2 and Figure 3As shown, the prefabricated T-beam auxiliary construction structure includes a prefabricated T-beam 12 and a platform. The prefabricated T-beam 12 includes a wing plate, a web plate and a horseshoe. The wing plate is arranged horizontally, the web plate is arranged vertically below the wing plate, the web plate is connected to the middle of the wing plate, and the horseshoe is located at the bottom of the web plate. The platform includes multiple steel pipes 1 arranged in parallel and at intervals. The left and right ends of the multiple steel pipes 1 are connected by connecting pipes 2 arranged perpendicular to the steel pipes 1. A flat plate is laid on the top of the platform. A protective net 3 is provided on the sides of the top of the platform. A fall arrester 4 is provided above the platform. The fall arrester 4 is connected to the platform through a steel cable. Two opposite supports 5 are provided on the bottom of the platform. A rotating shaft 6 is provided in the support 5. The rotating shaft 6 is rotatably connected to the support 5. Rollers 7 are provided at both ends of the rotating shaft 6. The rollers 7 are fixedly connected to the rotating shaft 6. When in use, the rollers 7 are placed on the horseshoes of two adjacent prefabricated T-beams 12. The horseshoe provides the support required for the rollers 7 to slide, and the rollers 7 can slide along the length direction of the prefabricated T-beam 12.

[0033] The setting process of this embodiment is as follows: six steel pipes 1 with a cross-sectional size of 40mm*60mm and a wall thickness of 2.0mm are arranged in parallel and at intervals. The left and right ends of the six steel pipes 1 are connected by connecting pipes 2 with a cross-sectional size of 20mm*40mm and a wall thickness of 2.0mm. The six steel pipes 1 and the two connecting pipes 2 are combined into a 1.5m*1.5m platform. The steel pipes 1 and the connecting pipes 2 are preferably welded and fixed with connecting pieces 10, or they can be connected and fixed with connecting pieces 10 in combination with bolts. Two opposite supports 5 are provided on the bottom surface of the platform, and a rotating shaft 6 is provided in the support 5. The rotating shaft 6 is rotatably connected to the support 5. Rollers 7 are provided at both ends of the rotating shaft 6, and the rollers 7 are fixedly connected to the rotating shaft 6 to form a whole. After it is formed, due to the irregularity of the geometric shape of the wet joint, the 1.2m*1.5m protective net 3 is lowered to the pre- The T-beam 12 can be installed at the rear of the horseshoe, and the protective net 3 is connected and fixed to the lower platform by bolts or welding using the connecting iron sheet and the L-shaped connecting piece. After the fixation is completed, a 1.5m*1.2m*2mm flat plate is laid on the top of the platform. The flat plate can be made of wood or steel plate, and the connecting iron sheet and the L-shaped connecting piece are screwed or welded to the top of the platform. 1.2m long angle steels are set on both sides of the protective net 3 and perforated, and the fall arrester 4 is suspended on it by a steel cable. After completion, the power unit 8, the transmission shaft 9, the rotating shaft 6 and the roller 7 are matched and connected, or the power unit 8 is not set. The front side of the moving direction is manually pulled and moved using a traction rope to form a mobile platform. A U-shaped card 11 made of galvanized steel is set on the front side of the platform. The traction rope is connected to the U-shaped card 11, and the platform can be moved.

[0034] like Figure 4 The negative bending moment tensioning tooth mouth 13 is set below the wing plate, and the roller 7 is placed on the horseshoe of the prefabricated T beam 12. The horseshoe provides the support required for the roller 7 to slide, and the roller 7 can slide along the length direction of the prefabricated T beam 12.

[0035] like Figure 1 and Figure 2 As shown, in some embodiments, a power device 8 and a transmission shaft 9 are also included. The power device 8 is set on the platform, and the transmission shaft 9 is kept perpendicular to the two rotating shafts 6. The two ends of the transmission shaft 9 are respectively engaged with the rotating shaft 6 through gears, and the output end of the power device 8 is engaged with the transmission shaft 9 gears.

[0036] In some embodiments, both the steel tube 1 and the connecting tube 2 are square tubes. Round tubes can also be used. Using square tubes as structural materials enhances the rigidity and stability of the entire platform. Compared to round tubes and other pipe shapes, square tube structures have higher bending strength and torsional rigidity, demonstrating greater stability and durability when subjected to external loads. Due to their regular shape, square tubes increase the contact surface between the components to be connected, making them easier to connect with other structural components, such as connectors.

[0037] In some embodiments, the connecting pipe 2 and the steel pipe 1 are connected by a connecting piece 10 and fixed by welding. Alternatively, welding can be used directly to fix them, or the connecting piece 10 can be used in combination with bolts to fix them.

[0038] In some embodiments, an angle steel is welded to the upper surface of the platform, and a connection hole is opened in the angle steel, and the fall arrester 4 is connected to the connection hole via a steel cable. Here, the angle steel is not shown in the drawings, and a connection support can be directly provided on the platform, or a hole can be opened in the platform, and the fall arrester 4 can be directly connected to the platform via a steel cable.

[0039] like Figure 3 As shown, in some embodiments, a U-shaped card 10 is provided on one side of the platform along the sliding direction of the roller 7, and two open ends of the U-shaped card 10 are connected to the side of the platform.

[0040] In some embodiments, the U-shaped clip 11 is made of galvanized steel.

Claims

1. A prefabricated T-beam auxiliary construction structure, comprising a prefabricated T-beam (12) and a platform, wherein the prefabricated T-beam (12) comprises a flange, a web and a horseshoe, wherein the flange is arranged horizontally, the web is arranged vertically below the flange, the web is connected to the middle of the flange, and the horseshoe is located at the bottom of the web, and ... and wherein the prefabricated T-beam (12) comprises a flange, a web and a horseshoe, and wherein the prefabricated T-beam (12) comprises a flange, a web and a horseshoe, and wherein the prefabricated T-beam (12) comprises a flange, a web and a horseshoe, and wherein the prefabricated T-beam (12) comprises a flange, a web and a horseshoe, and wherein the prefabricated T-beam (12) comprises a flange, a web and a horseshoe The platform comprises a plurality of steel pipes (1) arranged in parallel and spaced relation, the left and right ends of the plurality of steel pipes (1) are connected by connecting pipes (2) arranged perpendicular to the steel pipes (1), a flat plate is laid on the top of the platform, a protective net (3) is arranged on the sides of the top of the platform, a fall arrester (4) is arranged above the platform, the fall arrester (4) is connected to the platform through a steel cable, two opposite supports (5) are arranged on the bottom surface of the platform, a rotating shaft (6) is passed through the support (5), the rotating shaft (6) is rotatably connected to the support (5), rollers (7) are passed through both ends of the rotating shaft (6), the rollers (7) are fixedly connected to the rotating shaft (6), the rollers (7) are placed on the horseshoes of two adjacent prefabricated T-beams (12), the horseshoes provide the rollers (7) with the support required for sliding, and the platform can slide along the length direction of the prefabricated T-beam (12) through the rollers (7).

2. The prefabricated T-beam auxiliary construction structure according to claim 1, characterized in that: The invention also comprises a power device (8) and a transmission shaft (9). The power device (8) is arranged on a platform. The transmission shaft (9) and the two rotating shafts (6) are kept perpendicular. Both ends of the transmission shaft (9) are respectively engaged with the rotating shafts (6) through gears. The output end of the power device (8) is engaged with the transmission shaft (9) through gears.

3. The prefabricated T-beam auxiliary construction structure according to claim 1, characterized in that: The steel pipe (1) and the connecting pipe (2) are both square pipes.

4. The prefabricated T-beam auxiliary construction structure according to claim 1, characterized in that: The connecting pipe (2) and the steel pipe (1) are connected via a connecting piece (10) and fixed by welding.

5. The prefabricated T-beam auxiliary construction structure according to claim 1, characterized in that: Angle steel is welded and fixed on the upper surface of the platform. A connecting hole is provided on the angle steel. The fall arrester (4) is connected to the connecting hole via a steel cable.

6. The prefabricated T-beam auxiliary construction structure according to claim 1, characterized in that: A U-shaped card (11) is provided on one side of the platform along the sliding direction of the roller (7), and two open ends of the U-shaped card (11) are connected to the side of the platform.

7. The prefabricated T-beam auxiliary construction structure according to claim 1, characterized in that: The material of the U-shaped card (11) is galvanized steel.

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