A light-weight formwork tooling and supporting and reinforcing device for a track panel for construction of a ballastless track

Abstract

The application provides a lightweight formwork tool and a supporting and reinforcing device for track panel construction of a ballastless track, and relates to the technical field of railway track construction. The device comprises a transverse end form of a track bed, a longitudinal side form of the track bed, a supporting device and a formwork adjusting device. The supporting device comprises vertical supporting frames arranged oppositely on the outer sides of the longitudinal side forms of the track bed and a crossbeam connected to the top of the vertical supporting frames. The crossbeam is arranged above the track panel to form vertical upward floating constraint for the track panel frame and to pull and connect the two vertical supporting frames. The formwork adjusting device comprises reinforcing guide rails arranged along the length direction of the longitudinal side forms of the track bed. The reinforcing guide rails are connected to the vertical supporting frames on the same side and are provided with reinforcing flanges at intervals. The reinforcing flanges are connected to the outer side walls of the longitudinal side forms of the track bed through reinforcing bolts to form transverse constraint. The application can effectively improve the construction precision and efficiency by restraining the upward floating of the track panel through the crossbeam and restraining the formwork expansion and upward floating through the reinforcing guide rails and the reinforcing flanges.

Description

Technical Field

[0001] This application relates to the field of railway track construction technology, and in particular to a lightweight formwork tooling and support and reinforcement device for ballastless track construction track panels. Background Technology

[0002] In ballastless track construction, traditional track bed formwork often uses a modular steel structure, which suffers from heavy weight and complex installation procedures. This not only leads to low construction efficiency and high labor costs, but also means that conventional formwork generally relies on on-site welding or bolt splicing, affecting the geometric accuracy of the track. Furthermore, steel formwork has poor corrosion resistance, low residual value after reuse, and is prone to rust and deformation over time. During the concrete pouring stage, existing track bed formwork often uses temporary supports or single-point reinforcement, which lacks sufficient lateral stiffness and cannot effectively suppress formwork displacement and local deformation caused by hydration thermal expansion, requiring repeated adjustments and extending the construction period.

[0003] Furthermore, the existing track panel frame method involves pouring concrete directly under the frame during construction. The heat of hydration and deformation during concrete setting can easily cause the track panel to float or deform locally, further affecting the track's geometric accuracy and smoothness. At the same time, the existing support devices have weak side fixing structures, typically relying solely on direct connection between longitudinal and transverse formwork, making it difficult to effectively suppress formwork bulging. Especially in the construction of double-block sleepers, uneven lateral pressure can easily cause non-perpendicular contact surfaces or formwork displacement, requiring repeated adjustments and increasing construction costs and time. Summary of the Invention

[0004] In order to improve the problems of formwork cracking caused by lateral pressure generated by concrete pouring and track panel floating caused by thermal expansion of concrete during railway track construction, this application provides a lightweight formwork tooling and support and reinforcement device for track panels in ballastless track construction.

[0005] The lightweight formwork and support reinforcement device for ballastless track construction rail panels provided in this application adopts the following technical solution: A lightweight formwork tooling and support and reinforcement device for ballastless track construction track panels includes a transverse end formwork for the track bed, a longitudinal side formwork for the track bed, and further includes: The support device includes vertical support frames disposed opposite to the outer sides of the longitudinal side molds of the track bed on both sides, and a crossbeam spanning and connecting the top of the vertical support frames on both sides. The crossbeam is disposed above the track panel to form a vertical upward floating constraint on the track panel frame and to pull the two vertical support frames together. The template adjustment device includes a reinforcing guide rail arranged along the length of the longitudinal side formwork of the track bed. The reinforcing guide rail is connected to multiple vertical support frames on the same side. Multiple reinforcing flanges are installed at intervals on the reinforcing guide rail. The reinforcing flanges are connected to the outer wall of the longitudinal side formwork of the track bed by reinforcing bolts to form a lateral constraint on the longitudinal side formwork of the track bed.

[0006] Furthermore, the outer side wall of the longitudinal side formwork of the track bed is provided with longitudinal reinforcement components and equally spaced vertical reinforcement components, and the ends of the reinforcement bolts are connected to the vertical reinforcement components.

[0007] Furthermore, the reinforcing flange is provided with reinforcing bolts at both the upper and lower ends. The reinforcing bolts are "L"-shaped and include a straight section and a hook section. The vertical reinforcing component has a reserved hole. The hook section is inserted into the reserved hole, and the straight section is fixed to the reinforcing flange by a nut.

[0008] Furthermore, the reinforcing flange is slidably fitted onto the reinforcing guide rail and locked with bolts, and the spacing between two adjacent reinforcing flanges is distributed according to the expansion force of concrete.

[0009] Furthermore, the support device also includes a base plate fixed to the bottom of the vertical support frame, and the base plate is provided with anchors extending to the bottom of the foundation.

[0010] Furthermore, a bottom baffle is vertically fixed to the bottom plate, and a bottom bolt is horizontally inserted through the bottom baffle. The end of the bottom bolt contacts the outer wall of the longitudinal side mold of the track bed and presses it against the lower edge of the longitudinal side mold of the track bed to limit the expansion and floating of the longitudinal side mold of the track bed. The bottom bolt is screwed with a bottom bolt nut located on the side of the bottom baffle that is close to the longitudinal side formwork of the track bed.

[0011] Furthermore, the vertical support frame is composed of two parallel metal plates joined together and has a positioning cavity at the top for the end of the crossbeam to be inserted. The upper part of the vertical support frame is provided with a vertical adjustment structure for adjusting and locking the vertical position of the crossbeam.

[0012] Furthermore, the vertical adjustment structure includes: Positioning pin holes are provided at the corresponding positioning cavities of the vertical support frame, and multiple such holes are provided. A through-hole is provided at the end of the crossbeam; The positioning pin is adapted to both the positioning pin hole and the through pin hole, and is used to adjust the vertical position of the end of the crossbeam when inserted into positioning pin holes of different heights.

[0013] Furthermore, it also includes: A pin is rotatably mounted on the top of the vertical support frame, and several pins are provided. The locking bolt has a thread that passes through the pin, and its free end is used to press against the upper end face of the crossbeam.

[0014] Furthermore, the vertical support frame has a guide rail interface on its side, and the reinforcing guide rail is embedded in multiple guide rail interfaces on the same side. The reinforcing guide rail is connected to the vertical support frame by bolts.

[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. A multi-point collaborative lateral constraint system consisting of reinforced guide rails, reinforced flanges, and L-shaped reinforced bolts is used. The reinforced guide rails are arranged along the longitudinal side formwork length of the track bed, and the reinforced flanges are connected in series. Each reinforced flange is connected to the vertical reinforcement components on the outer side wall of the formwork at multiple points through L-shaped reinforced bolts. This allows the lateral pressure generated by concrete pouring to be distributed and transmitted to the reinforced guide rails through each connection point and borne by the vertical support frame. This achieves continuous multi-point collaborative constraint along the length of the formwork, effectively suppressing local bulging, floating, and overall lateral displacement of the formwork. It improves the defects of insufficient lateral stiffness of the formwork and easy bulging deformation and floating under the existing single-point reinforcement method. 2. Through the cooperation of the crossbeam and the vertical support frames on both sides, the crossbeam spans the top of the vertical support frames on both sides and is located above the rail panel frame. When the buoyancy generated by the heat expansion of the concrete during curing acts on the rail panel frame, the upper surface of the rail panel frame abuts against the lower surface of the crossbeam. The buoyancy is transmitted through the crossbeam to the vertical support frames on both sides and through the base plate and anchors to the foundation, thereby effectively suppressing the upward floating of the rail panel frame. 3. The vertical support frame serves as a shared structural foundation for fixing the base plate, reinforcing the guide rails, and supporting the crossbeams. The bottom of the vertical support frame is fixed to the foundation with the base plate and anchors to ensure overall stability. The sides support and reinforce the guide rails through the guide rail interfaces to achieve lateral constraint of the template. The top supports the crossbeams through the positioning cavity and vertical adjustment structure to achieve vertical constraint of the rail panel. The three components share the same vertical support frame to achieve structural integration. There is no need to set up separate support components for different functions. This simplifies the device structure, reduces the number of components, and improves the connection stiffness and overall stability between the components through functional coupling. 4. By using lightweight aluminum alloy for the transverse end formwork and longitudinal side formwork of the track bed, combined with an integrated hoisting design, compared to traditional steel modular formwork, aluminum alloy formwork has a lower density and lighter weight per piece, making it easier to transport and install on-site. The integrated hoisting method eliminates the need for segmented splicing, reducing on-site welding and bolting work and helping to ensure the accuracy of formwork installation. At the same time, aluminum alloy has excellent corrosion resistance, is not prone to rust and deformation, and with the detachable connection structure between components, the formwork and supporting components can be reused in different construction projects, which helps to reduce construction costs. 5. The structure, in which reinforcing flanges are slidably fitted onto reinforcing guide rails with adjustable spacing according to the distribution of concrete expansion force, allows construction personnel to adjust the position of each reinforcing flange along the reinforcing guide rails based on the concrete pouring location, pouring height, and estimated expansion force distribution. This allows for denser reinforcement flange placement in sections with higher expected expansion force and increased flange spacing in sections with lower expansion force, achieving dynamic adaptation to the distribution of formwork reinforcement force and improving adaptability to different construction conditions. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram of the structure after the rail frame is added in the embodiment of this application; Figure 3 This is a schematic diagram of the template adjustment device according to an embodiment of this application; Figure 4 yes Figure 2 An enlarged schematic diagram of part A in the middle; Figure 5 This is a schematic diagram of the support device according to an embodiment of this application.

[0018] Figure label: 1. Track panel frame; 21. Longitudinal side formwork for track bed; 211. Vertical reinforcement component; 212. Longitudinal reinforcement component; 22. Transverse end formwork for track bed; 343. Rail panel interface; 41. Reinforced guide rails; 42. Reinforced flanges; 43. Reinforced bolts; 431. Straight section; 432. Hook section; 51. Vertical support frame; 511. Base plate; 512. Locating pin hole; 513. Locating pin; 514. Pin shaft; 515. Locking bolt; 516. Guide rail interface; 52. Crossbeam; 61. Bottom baffle; 62. Bottom bolt; 63. Bottom nut. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0020] Reference Figures 1-5 This application discloses a lightweight formwork tooling and support reinforcement device for ballastless track construction track panels, which includes a transverse end formwork 22, a longitudinal side formwork 21, a support device, and a formwork adjustment device.

[0021] The transverse end mold 22 and the longitudinal side mold 21 of the track bed are both made of aluminum alloy, using lightweight aluminum alloy material. Aluminum alloy material has the characteristics of low density, high specific strength, and excellent corrosion resistance. Compared with traditional steel molds, it can significantly reduce the weight of a single piece, making it easier to transport and handle on site. The transverse end mold 22 is used to form end seals at both ends of the longitudinal direction of the track bed, and the longitudinal side mold 21 is used to form lateral boundaries on both sides of the transverse direction of the track bed. Together, they enclose the space for pouring the track bed concrete.

[0022] The support device includes vertical support frames 51 positioned opposite each other on the outer sides of the longitudinal side molds 21 of the track bed, and a crossbeam 52 spanning and connecting the tops of the vertical support frames 51 on both sides. The two ends of the crossbeam 52 are fixedly connected to the tops of the vertical support frames 51 on both sides, and span the entire pouring space. Specifically, a base plate 511 is fixedly connected to the lower end of the vertical support frame 51. Anchors extending to the bottom of the foundation are threaded through the base plate 511. The anchors can be anchor bolts, foundation bolts, or other suitable anchoring components. The base plate 511 is fixedly connected to the foundation through the anchors, thereby securely installing the vertical support frame 51 on the foundation.

[0023] The track frame 1 is located below the crossbeam 52. Therefore, when the concrete solidifies and expands, causing the track frame 1 to tend to float upwards, the upper surface of the track frame 1 abuts against the lower surface of the crossbeam 52, and the crossbeam 52 forms a vertical upward constraint on the track frame 1. At the same time, the crossbeam 52 spans between the two vertical support frames 51, serving to connect the two vertical support frames 51 and enhance the overall stability of the two vertical support frames 51, so that the two vertical support frames 51 form a portal frame structure.

[0024] Furthermore, referring to Figure 1 , Figure 2 and Figure 3 The template adjustment device includes a reinforcing guide rail 41 arranged along the length of the longitudinal side formwork 21 of the track bed. The reinforcing guide rail 41 connects multiple vertical support frames 51 on the same side, connecting the multiple vertical support frames 51 on the same side into a whole. Multiple reinforcing flanges 42 are installed at intervals on the reinforcing guide rail 41. The reinforcing flanges 42 are connected to the outer wall of the longitudinal side formwork 21 of the track bed through reinforcing bolts 43, forming a multi-point distributed lateral constraint on the longitudinal side formwork 21 of the track bed along its length, effectively suppressing the lateral displacement and bulging deformation of the template during concrete pouring and solidification.

[0025] Overall, the embodiments of this application achieve vertical constraint on the track panel frame 1 through the crossbeam 52, and achieve lateral multi-point constraint on the longitudinal side mold 21 of the track bed through the vertical support frame 51 and multiple reinforcing flanges 42 on the reinforcing guide rail 41. At the same time, the vertical support frame 51 is both the supporting foundation of the crossbeam 52 and the installation carrier of the reinforcing guide rail 41, realizing the structural integration of anti-floating function and anti-bulging function.

[0026] In some embodiments, the outer wall of the longitudinal side mold 21 of the track bed is provided with a longitudinal reinforcement component 212 and a vertical reinforcement component 211. The longitudinal reinforcement component 212 extends along the length direction of the longitudinal side mold 21 of the track bed and is used to improve the bending stiffness and integrity of the template panel in the length direction. The longitudinal reinforcement component 212 can be provided in multiple layers along the height direction of the longitudinal side mold 21 of the track bed. For example, a longitudinal reinforcement rib is provided in the upper, middle and lower parts of the longitudinal side mold 21 of the track bed. The multiple layers of longitudinal reinforcement components 212 together improve the stiffness uniformity of the longitudinal side mold 21 of the track bed in the height direction.

[0027] Multiple vertical reinforcement components 211 are arranged at equal intervals along the length of the longitudinal side mold 21 of the track bed. Each vertical reinforcement component 211 extends along the height direction of the mold, serving to improve the bending stiffness of the longitudinal side mold 21 of the track bed in the vertical direction and acting as a stress-bearing node connected to the reinforcement bolts 43. Thus, by setting longitudinal reinforcement components 212 and vertical reinforcement components 211 on the outer wall of the longitudinal side mold 21 of the track bed, a crisscrossing reinforcing rib grid structure is formed, which can effectively improve the overall stiffness and deformation resistance of the longitudinal side mold 21 of the track bed.

[0028] Moreover, the end of the reinforcing bolt 43 is connected to the vertical reinforcing component 211, which transmits the constraint force of the reinforcing guide rail 41 to the vertical reinforcing component 211 through the reinforcing flange 42 and the reinforcing bolt 43, and then evenly transmits it to the template panel through the vertical reinforcing component 211, thus avoiding the constraint force from acting directly on the template panel and causing local stress concentration.

[0029] In some embodiments, refer to Figure 2 , Figure 3 and Figure 4 The reinforcing flange 42 has reinforcing bolts 43 at both its upper and lower ends. The reinforcing bolts 43 are L-shaped, including a straight section 431 and a hook section 432, which are connected at an angle. A pre-drilled hole is provided on the vertical reinforcing component 211, and the hook section 432 is inserted into the pre-drilled hole to achieve a hook connection. The straight section 431 passes through the mounting hole on the reinforcing flange 42 and is fixed to the reinforcing flange 42 by a nut.

[0030] In some embodiments, the reinforcing flange 42 is slidably fitted onto the reinforcing guide rail 41 and locked with bolts. The cross-section of the reinforcing guide rail 41 can be I-shaped, rectangular, or other suitable shapes. The reinforcing flange 42 has a fitting hole that matches the shape of the reinforcing guide rail 41. After the reinforcing flange 42 slides along the reinforcing guide rail 41 to the target position, the reinforcing flange 42 and the reinforcing guide rail 41 are fixed relative to each other with bolts. Furthermore, the spacing between two adjacent reinforcing flanges 42 is set according to the distribution of concrete expansion force. For example, the arrangement of reinforcing flanges 42 is denser in sections where the expected expansion force is large, and the spacing of reinforcing flanges 42 is appropriately increased in sections where the expansion force is small, thereby optimizing the number of reinforcing components used while ensuring the reinforcement effect of the formwork.

[0031] During installation, first, install the reinforcing flanges 42 onto the reinforcing guide rails 41 in the predetermined quantity. Then, install the reinforcing guide rails 41 as a whole onto the vertical support frame 51. Adjust the position of the reinforcing flanges 42 so that the hook section 432 of the reinforcing bolts 43 is inserted into the reserved hole of the vertical reinforcing component 211 on the longitudinal side mold 21 of the track bed, so that the hook section 432 hooks onto the inner wall of the reserved hole. Then, tighten the straight section 431 onto the reinforcing flanges 42 with nuts. Finally, lock and position the reinforcing flanges 42 with bolts, so that the reinforcing flanges 42 and the vertical reinforcing component 211 are tightened and fixed by the L-shaped reinforcing bolts 43.

[0032] Therefore, the hook segment 432 of the L-shaped reinforcing bolt 43 can effectively prevent the reinforcing bolt 43 from coming out of the reserved hole, improving the reliability and tensile strength of the connection. The upper and lower reinforcing bolts 43 are respectively connected to different positions on the vertical reinforcing component 211, forming two constraint points on the longitudinal side formwork 21 of the track bed, further improving the constraint balance and anti-overturning ability of the longitudinal side formwork 21 of the track bed, and suppressing both formwork bulging and floating. That is, the design of multiple reinforcing flanges 42 on the reinforcing guide rail 41, and the design of two L-shaped reinforcing bolts 43 on the reinforcing flanges 42, realizes multi-point protection against bulging and floating of the longitudinal side formwork 21 of the track bed.

[0033] In some embodiments, refer to Figure 4 and Figure 5 A bottom baffle 61 is vertically fixed to the bottom plate 511. A bottom bolt 62 is horizontally inserted through the bottom baffle 61. The bottom bolt 62 extends horizontally, perpendicular to the outer wall of the longitudinal side mold 21 of the track bed. A bottom nut 63 is screwed onto the bottom bolt 62, located on the side of the bottom baffle 61 closest to the longitudinal side mold 21 of the track bed. The end of the bottom bolt 62 contacts the outer wall of the longitudinal side mold 21 of the track bed and presses it against the lower edge of the longitudinal side mold 21 of the track bed to limit the expansion and upward floating of the longitudinal side mold 21 of the track bed.

[0034] Thus, the bottom bolt 62 abuts against the lower edge of the longitudinal side mold 21 of the track bed, forming a lateral support at the bottom of the longitudinal side mold 21. This support works in conjunction with the upper reinforcing flange 42 and reinforcing guide rail 41 to suppress the expansion deformation of the longitudinal side mold 21 caused by lateral pressure. At the same time, it provides a vertical limiting effect on the lower edge of the mold, further suppressing the longitudinal side mold 21 of the track bed from floating upward.

[0035] In some embodiments, refer to Figure 1 , Figure 2 and Figure 5 The vertical support frame 51 is composed of two parallel metal plates joined together, with a predetermined distance between them to form a hollow structure. The plates also feature perforated designs, which reduces the weight of the vertical support frame 51 while ensuring load-bearing capacity, and facilitates on-site hoisting and construction. The tops of the two metal plates form a positioning cavity for inserting the end of the crossbeam 52. The upper part of the vertical support frame 51 is equipped with a vertical adjustment structure for adjusting and locking the vertical position of the crossbeam 52.

[0036] Specifically, in some embodiments, the vertical adjustment structure includes a positioning pin hole 512, a through pin hole, and a positioning pin 513. The positioning pin hole 512 is formed at the location of the vertical support frame 51 corresponding to the positioning cavity, and multiple positioning pin holes 512 at different heights correspond to different vertical installation positions at the end of the crossbeam 52. The through pin hole is formed through the end of the crossbeam 52 for the positioning pin 513 to pass through; the positioning pin 513 is inserted and fitted into both the positioning pin hole 512 and the through pin hole. When it is necessary to adjust the vertical position of the crossbeam 52, the end of the crossbeam 52 can be moved up and down in the positioning cavity to align the through pin hole with the positioning pin hole 512 at the target height. Then, the positioning pin 513 is passed through the positioning pin hole 512 and the through pin hole to lock the end of the crossbeam 52 at that height position.

[0037] In some embodiments, the vertical adjustment structure further includes pins 514 and locking bolts 515. Pins 514 are rotatably mounted on the top of the vertical support frame 51, and several are provided. Pins 514 are installed between the two side plates at the top of the vertical support frame 51, with the axial direction of pins 514 perpendicular to the length direction of the vertical support frame 51. Pins 514 can rotate freely around their own axis. Locking bolts 515 are threaded through pins 514, and their free end is used to press against the upper end face of the crossbeam 52. When the end of the crossbeam 52 is positioned at the target height by the positioning pin 513, rotating the locking bolts 515 causes the free end of the locking bolts 515 to move downwards and press against the upper end face of the crossbeam 52, further fixing the vertical position of the crossbeam 52 and preventing vertical movement of the crossbeam 52 during use.

[0038] It is worth noting that the positioning pin 513 provides coarse positioning and main load-bearing connection for the crossbeam 52, while the locking bolt 515 provides auxiliary locking and anti-loosening functions. The combination of the two ensures both the convenience and adjustability of the crossbeam 52 installation, as well as the structural stability and reliability after connection.

[0039] In some embodiments, refer to Figure 4 and Figure 5 The vertical support frame 51 has a guide rail interface 516 reserved on its side. The guide rail interface 516 can be a structure such as a mounting hole, mounting groove or mounting seat opened on the side of the vertical support frame 51. The reinforcing guide rail 41 passes through the guide rail interface 516 of each vertical support frame 51 on the same side in sequence, and is connected to the corresponding vertical support frame 51 by bolts.

[0040] By installing the reinforcing guide rail 41 into the guide rail interface 516 of the vertical support frame 51, the reinforcing guide rail 41 and the vertical support frame 51 are connected as one unit. The vertical support frame 51 provides the installation foundation and positioning reference for the reinforcing guide rail 41, and also connects the vertical support frames 51 on the same side into a whole through the reinforcing guide rail 41, thereby improving the longitudinal integrity and vertical anti-buoyancy performance of the support device.

[0041] In some embodiments, refer to Figure 2 The vertical support frame 51 also has a rail interface 343 reserved for connection with the rail frame 1, which can realize a quick-release connection between the vertical support frame 51 and the rail frame 1.

[0042] A typical ballastless track construction method according to an embodiment of this application is as follows: S1. Hoist the transverse end formwork 22 and the longitudinal side formwork 21 of the track bed to the construction position, and fix the transverse end formwork 22 and the longitudinal side formwork 21 of the track bed to the foundation with fastening bolts. Specifically, a gantry crane can be used to hoist the integrated lightweight aluminum alloy formwork fixtures in groups to the construction site. After arriving at the construction site, roughly confirm the position of the formwork, and fasten the formwork fixtures above the foundation base with fastening bolts.

[0043] S2. Install the vertical support frame 51 on the outside of the longitudinal side formwork 21 of the track bed, and fix it to the foundation through the base plate 511 and anchors. Install the reinforcing guide rail 41 on the guide rail interface 516 reserved on the side of the vertical support frame 51, and connect the reinforcing guide rail 41 to the vertical reinforcement component 211 of the longitudinal side formwork 21 of the track bed through the reinforcing flange 42 and the reinforcing bolts 43.

[0044] S3. Install the crossbeam 52 on the upper part of the vertical support frame 51, so that the crossbeam 52 is located above the rail panel frame 1. Specifically, insert the end of the crossbeam 52 into the positioning cavity at the top of the vertical support frame 51, adjust the vertical position of the crossbeam 52 according to the height of the rail panel by means of the positioning pin 513, and lock it with the help of locking bolts 515, so that the crossbeam 52 and the upper surface of the rail panel frame 1 maintain a predetermined fit relationship.

[0045] S4. Install the rail panel frame 1 onto the rail panel interface 343 of the vertical support frame 51. Using the rail panel structure pre-installed on the vertical support frame 51, select different rail panel frames 1 for interface installation according to different working conditions to complete the assembly of the overall construction frame.

[0046] In some embodiments, after the crossbeam 52 is installed on the upper part of the vertical support frame 51 and before the rail panel frame 1 is installed on the rail panel interface 343 of the vertical support frame 51, the following steps are also included: checking the displacement and verticality of the transverse end mold 22 and the longitudinal side mold 21 of the track bed, and adjusting the template adjustment device according to the inspection results. Specifically, the displacement and verticality deviation of the template are detected by measuring tools, and the position of the reinforcing flange 42 and the tightening force of the reinforcing bolts 43 are adjusted according to the detected deviations to restore the template to the target position and posture, so as to ensure the installation accuracy of the template.

[0047] In other embodiments, after all track construction is completed, the formwork can be dismantled and reassembled in the reverse order of installation. All components are detachable and can be reused after dismantling. The detachable structural design of the aluminum alloy formwork and support devices results in a high reusability of the formwork, which helps reduce construction costs.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A lightweight formwork fixture and support reinforcement device for ballastless track construction track panels, comprising transverse end formwork and longitudinal side formwork, characterized in that, Also includes: The support device includes vertical support frames disposed opposite to the outer sides of the longitudinal side molds of the track bed on both sides, and a crossbeam spanning and connecting the top of the vertical support frames on both sides. The crossbeam is disposed above the track panel to form a vertical upward floating constraint on the track panel frame and to pull the two vertical support frames together. The template adjustment device includes a reinforcing guide rail arranged along the length of the longitudinal side formwork of the track bed. The reinforcing guide rail is connected to multiple vertical support frames on the same side. Multiple reinforcing flanges are installed at intervals on the reinforcing guide rail. The reinforcing flanges are connected to the outer wall of the longitudinal side formwork of the track bed by reinforcing bolts to form a lateral constraint on the longitudinal side formwork of the track bed.

2. The lightweight formwork tooling and support reinforcement device for ballastless track construction track panels according to claim 1, characterized in that, The outer side wall of the longitudinal side formwork of the track bed is provided with longitudinal reinforcement components and equally spaced vertical reinforcement components, and the ends of the reinforcement bolts are connected to the vertical reinforcement components.

3. The lightweight formwork and support reinforcement device for ballastless track construction track panels according to claim 2, characterized in that, The reinforcing flange is provided with reinforcing bolts at both the upper and lower ends. The reinforcing bolts are "L" shaped and include a straight section and a hook section. The vertical reinforcing component has a reserved hole. The hook section is inserted into the reserved hole, and the straight section is fixed to the reinforcing flange by a nut.

4. The lightweight formwork tooling and support reinforcement device for ballastless track construction track panels according to claim 1, characterized in that, The reinforcing flange is slidably sleeved on the reinforcing guide rail and locked with bolts. The spacing between two adjacent reinforcing flanges is distributed according to the expansion force of concrete.

5. The lightweight formwork tooling and support reinforcement device for ballastless track construction track panels according to claim 1, characterized in that, The support device also includes a base plate fixed to the bottom of the vertical support frame, and anchors extending to the bottom of the foundation are provided on the base plate.

6. The lightweight formwork tooling and support reinforcement device for ballastless track construction track panels according to claim 5, characterized in that, A bottom baffle is vertically fixed to the bottom plate, and a bottom buckle bolt is horizontally inserted through the bottom baffle. The end of the bottom buckle bolt contacts the outer wall of the longitudinal side mold of the track bed and presses it against the lower edge of the longitudinal side mold of the track bed to limit the expansion and floating of the longitudinal side mold of the track bed. The bottom bolt is screwed with a bottom bolt nut located on the side of the bottom baffle that is close to the longitudinal side formwork of the track bed.

7. A lightweight formwork fixture and support reinforcement device for ballastless track construction track panels according to any one of claims 1-6, characterized in that, The vertical support frame is composed of two parallel metal plates joined together, and has a positioning cavity at the top for the end of the crossbeam to be inserted. The upper part of the vertical support frame is provided with a vertical adjustment structure for adjusting and locking the vertical position of the crossbeam.

8. The lightweight formwork tooling and support reinforcement device for ballastless track construction track panels according to claim 7, characterized in that, The vertical adjustment structure includes: Positioning pin holes are provided at the corresponding positioning cavities of the vertical support frame, and multiple such holes are provided. A through-hole is provided at the end of the crossbeam; The positioning pin is adapted to both the positioning pin hole and the through pin hole, and is used to adjust the vertical position of the end of the crossbeam when inserted into positioning pin holes of different heights.

9. The lightweight formwork tooling and support reinforcement device for ballastless track construction track panels according to claim 8, characterized in that, Also includes: A pin is rotatably mounted on the top of the vertical support frame, and several pins are provided. The locking bolt has a thread that passes through the pin, and its free end is used to press against the upper end face of the crossbeam.

10. The lightweight formwork and support reinforcement device for ballastless track construction track panels according to claim 1, characterized in that, The vertical support frame has a guide rail interface on its side, and the reinforcing guide rail is embedded in multiple guide rail interfaces on the same side. The reinforcing guide rail is connected to the vertical support frame by bolts.

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