Box girder three-wall automatic pouring mold

Abstract

This invention provides an automated casting mold for three walls of a box girder. The protective wall template includes fixed and movable protective wall templates corresponding to both sides of the protective wall of the box girder. The B-wall template is horizontally braced and fixedly connected to the fixed protective wall template. Multiple lifting rods are installed on each portal frame to raise and lower the protective wall template and the B-wall template. Drive rods corresponding to the movable protective wall template are installed on the legs of the portal frame to drive the movable protective wall template to rotate and achieve mold opening or closing. Through the coordinated action of the lifting rods and drive rods, the automated raising, lowering, opening, and closing of the protective wall template and the B-wall template are achieved, significantly reducing manual operation, lowering labor intensity, and improving construction efficiency. This solves the drawbacks of traditional molds that rely on manual operation and is suitable for large-scale, automated construction needs. Automated operation reduces high-altitude work and manual climbing, lowering construction safety risks.

Description

Technical Field

[0001] This invention belongs to the technical field of sidewall construction in box girder construction, and specifically relates to an automated casting mold for the three walls of a box girder. Background Technology

[0002] During the construction of box girders, the three walls (protective wall, B wall, and A wall) are important components, and their casting quality directly affects the overall structural stability and service life of the box girder. Traditionally, the casting of the three walls of box girders often employs manual assembly of loose formwork, requiring a large amount of manpower for positioning and fixing, resulting in a long construction cycle and difficulty in adapting to the needs of large-scale, automated construction. Manual assembly is prone to problems such as formwork misalignment and excessively large splice gaps, leading to substandard flatness and verticality of the cast walls, and potential quality hazards such as joint cracking, affecting the bridge's durability. Furthermore, the opening, closing, and raising / lowering of the formwork all rely on manual operation, resulting in high labor intensity and significant risks associated with working at heights, making it difficult to guarantee construction safety.

[0003] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art. This invention provides an automated casting mold for the three walls of a box girder.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An automated casting mold for three walls of a box girder includes: The main beam consists of two parallel main beams, with multiple portal-shaped support frames straddling the two main beams and fixedly connected to them. The protective wall template includes a fixed protective wall template and a movable protective wall template on both sides of the protective wall corresponding to the box girder. The fixed protective wall template is fixed below one of the main beams, and the movable protective wall template is hinged below the other main beam. B-wall template, wherein the cross brace of the B-wall template is fixedly connected to the fixed template of the protective wall; The lifting rods are provided on each of the portal support frames, so as to drive the protective wall template and the B wall template to rise and fall by lifting. The legs of the portal support frame are provided with driving rods corresponding to the moving mold of the protective wall, so as to drive the moving mold of the protective wall to rotate to realize the opening or closing of the mold; the fixed mold of the protective wall and the legs of the corresponding portal support frame are provided with crossbeams, and the lower surface of the crossbeams is fixed to the upper edge of the B wall template so that the lower edge of the B wall template abuts against the upper surface of the box beam. Positioning rods are provided between the moving formwork of the protective wall and the corresponding portal support frame legs, and between the B wall template and the box girder A wall.

[0006] Preferably, protective wall end molds are detachably connected to both ends of the protective wall template. The protective wall template includes multiple sections spliced ​​along the mileage direction of the box girder, and a protective wall partition plate is provided between any two adjacent sections. The two ends of the B-wall formwork are detachably connected to the B-wall end formwork. The B-wall formwork consists of multiple sections spliced ​​along the mileage direction of the box girder, and a B-wall partition plate is provided between any two adjacent sections.

[0007] Preferably, the lower edge of the protective wall moving mold is provided with an outward flange, and the middle part of the flange is provided with a downward protruding rib extending along its length direction, and the two sides of the rib extend obliquely to the two sides of the flange. When the protective wall template is in the closed state, the lower surface of the ribs is at the same horizontal plane as the fixed mold of the protective wall.

[0008] Preferably, multiple positioning seats are evenly distributed on the outer side of the moving formwork of the protective wall. The positioning seats are L-shaped structures. One end of the positioning seat abuts against the outer wall of the moving formwork of the protective wall and blocks the top of the flange. The other end of the positioning seat is anchored to the upper surface of the box girder by bolts.

[0009] Preferably, the protective wall partition includes a protective wall pull-out plate and a protective wall forming plate, with two protective wall forming plates sandwiched on both sides of the protective wall pull-out plate, and the protective wall pull-out plate has a longitudinally extending strip notch in the middle corresponding to two through-ribs of the protective wall. The protective wall forming panel is adapted to the cross section of the protective wall, including a first panel and a second panel spliced ​​together in the longitudinal direction. The splice joint of the first panel and the second panel is located at the through-rib on the upper side of the protective wall. The second panel is provided with horizontally extending longitudinal strip notches corresponding to the through-rib on the lower side. The joint between the first and second plates has a notch corresponding to the upper through-rib.

[0010] Preferably, the B-wall partition panel includes a B-wall pull-out panel and a B-wall molded panel, wherein the B-wall molded panel is adapted to the cross-section of the B-wall, and the two B-wall molded panels are correspondingly clamped on both sides of the B-wall pull-out panel.

[0011] Preferably, the outer side of the B wall template is provided with a side beam corresponding to the positioning rod, and the side beam is provided with a hinge plate corresponding to the positioning rod.

[0012] Preferably, the portal support frame is provided with a lifting support foot under the leg on the side of the moving formwork of the protective wall. The lifting support foot includes a threaded sleeve, a stud and a base plate. The threaded sleeve is detachably connected to the lower end of the leg. The stud is threadedly fitted into the threaded sleeve. The base plate is placed on the upper surface of the box beam and faces the stud. The stud abuts against the base plate. The height of the leg is adjusted by rotating the stud.

[0013] Preferably, the base plate is anchored to the box girder by bolts, and an undercut channel steel with a corresponding stud is provided in the middle of the base plate, and a through hole with a corresponding stud is provided in the middle of the undercut channel steel.

[0014] Preferably, the portal frame has hanging points distributed above it, and the casting mold consists of multiple sections, each with a length of 12 meters or 8 meters.

[0015] Beneficial effects: Through the coordinated action of the lifting rod and drive rod, the automatic lifting, opening, and closing of the protective wall formwork and B-wall formwork are achieved, significantly reducing manual operation, lowering labor intensity, and improving construction efficiency. This solves the drawbacks of traditional molds relying on manual operation and adapts to the needs of large-scale, automated construction. Automated operation reduces high-altitude work and manual climbing, lowering construction safety risks.

[0016] The inner templates of the B wall and the protective wall are welded together as a whole, ensuring the accurate positioning dimensions of the protective wall and the B wall. The B wall insert plate and the protective wall template and the corresponding partition plate are not connected by bolts or pins, making it easy to remove. When removing, there is no need to disassemble the bolts and pins, and it can be removed directly, which can save time. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. Wherein: Figure 1 This is a schematic diagram illustrating the use of the mold in a specific embodiment of the present invention; Figure 2 This is a front view of the mold provided in a specific embodiment of the present invention; Figure 3 A perspective view of the mold from the protective wall template side in a specific embodiment of the present invention: Figure 4 A perspective view of the mold from the B-wall template side in a specific embodiment of the present invention: Figure 5 This is a simplified structural diagram of the protective wall partition plate in a specific embodiment of the present invention; Figure 6 This is a simplified structural diagram of the protective wall pull-out panel in a specific embodiment of the present invention; Figure 7 This is a simplified structural diagram of the B-wall partition plate in a specific embodiment of the present invention.

[0018] In the diagram: 1. Box girder; 2. Protective wall; 3. B wall; 4. A wall; 5. Portal support frame; 6. Main beam; 7. Moving formwork for protective wall; 8. Lifting point; 9. Screw sleeve; 10. Drive rod; 11. B wall formwork; 12. Side beam; 13. Fixed formwork for protective wall; 14. Stud; 15. Base plate; 16. Inverted channel steel; 17. Lifting rod; 18. Crossbeam; 19. Positioning rod; 20. Horizontal brace; 21. Positioning seat; 22. Protective wall partition plate; 23. B wall partition plate; 2201. Protective wall pull-out plate; 2202. Second plate; 2203. First plate; 2301. B wall forming plate; 2302. B wall pull-out plate. Detailed Implementation

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0020] In the description of this invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and do not require the invention to be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. The terms "connected" and "linked" used in this invention should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0021] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0022] like Figure 1-7As shown, an automated casting mold for a box girder with three walls includes a main beam 6, a protective wall template, a B-wall template 11, and a lifting rod 17. The main beam 6 is made of I-beams or two spliced ​​channel steels, with the specific model selected according to the load-bearing requirements of the mold. The spacing between the two main beams 6 is set according to the width of the three walls of the box girder 1. Multiple portal frame supports 5 straddle the two main beams 6. The portal frame supports 5 are made of square steel or I-beams welded together. The number of portal frame supports 5 is set according to the length of the box girder 1, generally one every 2-5 meters. The portal frame supports 5 are fixedly connected to the main beams 6 by bolts or welding. The portal frame supports 5 include a main body distributed horizontally and legs located at both ends of the cross brace 20. The main body is used to fix the main beam 6 or the protective wall template. The plane at the lower end of the legs is higher than the plane at the lower surface of the protective wall template and the B-wall template 11.

[0023] The protective wall formwork includes a fixed protective wall formwork 13 and a movable protective wall formwork 7. Both the fixed and movable protective wall formwork 13 are made of steel plates with a thickness of 10-12mm, and their outer walls are evenly distributed with ribs to ensure the rigidity and strength of the formwork. The fixed protective wall formwork 13 is fixed to the underside of one of the main beams 6 by welding, and the movable protective wall formwork 7 is hinged to the underside of the other main beam 6 via a hinge shaft. B-wall formwork 11 includes side formwork on both sides of the box girder 1B wall; B-wall formwork 11 is also made of 10-12mm thick steel plate, and ribs are evenly distributed on the outer wall. The side formwork on one side of B-wall formwork 11 is fixedly connected to the protective wall fixed formwork 13 by a cross brace 20. The cross brace 20 is made of square steel or I-beam steel. The two ends of the cross brace 20 are welded to the protective wall fixed formwork 13 and the B-wall side formwork, respectively. The length of the cross brace 20 is adjusted according to the distance between the protective wall 2 and the B-wall 3.

[0024] The upper ends of the side molds on both sides of the B wall template 11 are detachably connected by connecting plates. The connecting plates are made of steel plates or angle steel and are located above the B wall template 11. They are connected to the upper surfaces of the side molds on both sides by bolts. Multiple connecting plates are evenly distributed along the length of the B wall template 11.

[0025] Each portal frame 5 is equipped with three lifting rods 17, each using a hydraulic cylinder with its output end pointing downwards. Two lifting rods 17 are located on either side of the two main beams 6, and the third lifting rod 17 is located on the side of the support leg corresponding to the A-wall 4. The hydraulic cylinders are controlled by a hydraulic system and can extend or retract synchronously or separately. In this embodiment, a height adjustment device is also provided on the side of the support leg where the lifting rods 17 are located. The height adjustment device can be a lifting support leg or have the same structure as the positioning rod 19, with its lower end anchored to the box beam 1 by bolts.

[0026] A drive rod 10 is provided on the leg of the portal support frame 5 corresponding to the moving mold 7 of the protective wall. The drive rod 10 is a hydraulic cylinder. The output end of the hydraulic drive rod 10 is hinged to the moving mold 7 of the protective wall. The extension and retraction of the drive rod 10 is controlled by the hydraulic system, thereby driving the moving mold 7 of the protective wall to rotate around the hinge point to realize the opening or closing of the mold. A crossbeam 18 is provided between the fixed mold 13 of the protective wall and the corresponding leg of the portal support frame 5. The crossbeam 18 is made of I-beam. The two ends of the crossbeam 18 are welded to the fixed mold 13 of the protective wall and the leg of the portal support frame 5, respectively. The lower surface of the crossbeam 18 is in close contact with the upper surface of the B wall template 11 and welded to it, thereby applying pressure to the B wall template 11 and causing the bottom of the B wall template 11 to squeeze and seal the box beam 1.

[0027] Positioning rods 19 are provided between the moving formwork 7 of the protective wall and the corresponding portal frame 5 legs, and between the side of the B wall formwork 11 and the box girder 1A wall 4. The positioning rods 19 are threaded rods, with threaded sleeves threaded to both ends and hinged to the corresponding positioning points through the threaded sleeves. The positioning accuracy can be finely adjusted by adjusting the length of the threaded rods. The two ends of the protective wall formwork are bolted to the end formwork of the protective wall. The end formwork of the protective wall is made of steel plate. The protective wall formwork is spliced ​​into multiple sections along the mileage direction of the box girder 1, each section being 2 meters long. A protective wall partition plate 22 is provided between any two adjacent sections. The two ends of the B wall formwork 11 are bolted to the end formwork of the B wall. The B wall formwork 11 is also spliced ​​into multiple sections along the mileage direction of the box girder 1, with a B wall partition plate 23 provided between any two adjacent sections.

[0028] In this embodiment, the protective wall partition 22 includes a protective wall pull-out plate 2201 and a protective wall forming plate. The protective wall pull-out plate 2201 is made of steel plate, and has a longitudinal strip notch in the middle corresponding to two through-ribs of the protective wall. The width of the strip notch is adapted to the diameter of the through-ribs. In actual construction, there are generally two through-ribs, which are located in the middle of the protective wall, spaced a certain distance apart in the longitudinal direction and distributed in parallel. The longitudinal strip notch is set so that the two through-ribs can be clamped together. The pull-out panel 2201 of the protective wall is the same height as the protective wall, and the prefabricated panel of the protective wall is adapted to the cross-section of the protective wall. It includes a first panel 2203 and a second panel 2202, both made of steel plates. They are spliced ​​longitudinally, with the splice located at the upper through-rib of the protective wall. The second panel 2202 has a horizontal strip notch corresponding to the lower through-rib, and the splice of the first panel 2203 and the second panel 2202 has a notch corresponding to the upper through-rib. This avoids the through-rib after the first panel 2203 and the second panel 2202 are spliced. Through the constraint of the pull-out panel 2201 and the prefabricated panel, the splice of the template can be sealed, thereby minimizing grout leakage. The contact surfaces of the pull-out panel 2201 and the prefabricated panel are coated with lubricating grease.

[0029] When in use, the protective wall partition plate 22 is mainly used to form a gap, thereby reducing the stress on the wall. In actual use, the protective wall pull plate 2201 is lubricated with grease on both sides. When the concrete initially sets, the protective wall pull plate 2201 is pulled out. Later, the protective wall forming plates on both sides can be pulled out before the formwork is closed, thus achieving the formation of the gap. The first plate 2203, the second plate 2202 and the protective wall pull plate 2201 are all equipped with pull rings located on the outside of the protective wall template for easy pulling out.

[0030] Furthermore, a limiting part extending towards the protective wall template is provided at the upper end of the first plate 2203. A positioning plate corresponding to the limiting part is welded onto the protective wall template. The upper edge of the positioning plate and the lower edge of the limiting part are respectively provided with snap-fit ​​notches. When the limiting part engages with the snap-fit ​​notches of the positioning plate through the snap-fit ​​notches, the first plate 2203 and the second plate 2202 are spliced ​​to form a protective wall forming plate corresponding to the cross-section of the protective wall, thereby precisely positioning the first plate 2203. When removing the protective wall template, the positioning plate can be cut. Pull rings are provided on the first plate 2203, the pull plate, and the second plate 2202 for easy handling during pulling.

[0031] In this embodiment, B wall 3 is generally not provided with through-ribs. Therefore, B wall partition plate 23 includes B wall pull plate 2302 and B wall forming plate 2301. B wall forming plate 2301 is adapted to the cross section of B wall. Two B wall forming plates 2301 are sandwiched on both sides of B wall pull plate 2302. B wall pull plate 2302 is made of steel plate and its usage is similar to that of partition plate, so it will not be described in detail here.

[0032] In an optional embodiment, the lower edge of the protective wall moving mold 7 is provided with an outward flange, which is integrally formed with the protective wall moving mold 7. The flange width is not less than 50mm, and the middle of the flange is provided with a downward protruding rib. The rib extends along the length direction of the flange, and the two sides of the rib extend obliquely to the two sides of the flange. When the protective wall template is closed, the lower surface of the rib is at the same level as the protective wall fixed mold 13, so as to make room for the two sides of the flange during the rotation of the protective wall moving mold 7 and avoid motion interference between the flange and the surface of the box girder 1.

[0033] Furthermore, multiple positioning seats 21 are evenly distributed on the outer side of the protective wall moving formwork 7. The positioning seats 21 are L-shaped structures and made of Q235 steel. One end of the positioning seat 21 abuts against the outer wall of the protective wall moving formwork 7 and blocks the top of the flange. The other end of the positioning seat 21 is provided with horizontally distributed anchor plates, which are anchored to the upper surface of the box girder 1 by expansion bolts.

[0034] In an optional embodiment, the outer side of the B-wall formwork 11 is provided with a side beam 12 corresponding to the positioning rod 19, and the side beam 12 is provided with a hinge plate corresponding to the positioning rod 19. The side beam 12 is an I-beam or square steel, used to enhance the structural strength of the B-wall formwork 11.

[0035] The portal frame 5 has a lifting support foot under the leg on the side corresponding to the moving formwork 7 of the protective wall. The lifting support foot includes a screw sleeve 9, a stud 14, and a base plate 15. The screw sleeve 9 is made of steel pipe and is detachably connected to the leg by bolts. The stud 14 is threaded into the screw sleeve 9. The height of the leg is adjusted by rotating the stud 14, so that the lower surface of the formwork is close to the surface of the box girder 1. The base plate 15 is made of steel plate and is anchored to the box girder 1 by expansion bolts. An undercut channel steel 16 is welded in the middle of the base plate 15. The undercut channel steel 16 has a through hole in the middle corresponding to the stud 14, so as to position the stud 14. A holding part is provided on the outside of the stud 14 so that the stud 14 can be manually rotated. The undercut channel steel 16 can be used to position and limit the stud 14, so as to prevent the stud 14 from shifting. At the same time, it can enhance the load-bearing capacity of the base plate 15 and prevent the base plate 15 from deforming due to excessive force.

[0036] Multiple lifting points 8 are distributed above the portal support frame 5. Generally, two lifting points 8 are welded above the portal support frame 5. The lifting points 8 adopt a lifting lug structure. The lifting lugs are made of Q355 steel and are located at both ends of the main body of the portal support frame 5 for easy lifting.

[0037] The casting mold consists of multiple sections, each 12 meters or 8 meters long. The 12-meter and 8-meter sections are hoisted to the site as a whole. The specific section length is adjusted according to actual needs. After being hoisted to the site, only the joints between the sections need to be connected, reducing the amount of on-site splicing work.

[0038] The working process of this mold is as follows: The surface of box girder 1 was photographed, and then the reinforcing bars of protective wall 2 and wall B were tied.

[0039] The mold is hoisted to the designated position of the box girder 1, so that the protective wall template and the B wall template 11 are fitted onto the corresponding steel bars. The height of the protective wall template and the B wall template 11 is adjusted by the lifting rod 17, and the screws 14 of the lifting support are used for fine adjustment to ensure that the mold is level. Thus, the lower surface of the protective wall template and the B wall template 11 is sealed by the weight of the mold itself.

[0040] Drive the protective wall moving mold 7 to rotate by the drive rod 10 to achieve mold closing. Lock the protective wall moving mold 7 with the positioning seat 21, install the protective wall end mold and B wall end mold, and then accurately position the protective wall moving mold 7 and B wall template 11 by the positioning rod 19. Then install the protective wall partition plate 22 and B wall partition plate 23 in place.

[0041] Concrete pouring is carried out, and the concrete is vibrated by a vibrating device during the pouring process to ensure the compactness of the concrete. After the pouring is completed and the concrete has initially set, the protective wall pull plate 2201 and the B wall pull plate 2302 are pulled out. When the concrete reaches the specified strength, the remaining parts of the protective wall partition plate 22 and the B wall partition plate 23 are pulled out. Then, the positioning rod 19, the connecting plate and the positioning seat 21 are removed. After the protective wall end formwork and the B wall end formwork are removed, the protective wall moving formwork 7 is driven to open the formwork by the drive rod 10. Then, the protective wall formwork and the B wall formwork 11 are lifted by the lifting rod 17 to complete the demolding operation.

[0042] The mold is hoisted to the next construction position via lifting point 8, and the above steps are repeated for subsequent pouring operations.

[0043] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention shall be within the scope of protection of the pending claims of the present invention.

Claims

1. An automated casting mold for three walls of a box girder, characterized in that, include: The main beam consists of two parallel main beams, with multiple portal-shaped support frames straddling the two main beams and fixedly connected to them. The protective wall template includes a fixed protective wall template and a movable protective wall template on both sides of the protective wall corresponding to the box girder. The fixed protective wall template is fixed below one of the main beams, and the movable protective wall template is hinged below the other main beam. B-wall template, wherein the cross brace of the B-wall template is fixedly connected to the fixed template of the protective wall; The lifting rods are provided on each of the portal support frames, so as to drive the protective wall template and the B wall template to rise and fall by lifting. The legs of the portal support frame are provided with driving rods corresponding to the moving mold of the protective wall, so as to drive the moving mold of the protective wall to rotate to realize the opening or closing of the mold; the fixed mold of the protective wall and the legs of the corresponding portal support frame are provided with crossbeams, and the lower surface of the crossbeams is fixed to the upper edge of the B wall template so that the lower edge of the B wall template abuts against the upper surface of the box beam. Positioning rods are provided between the moving formwork of the protective wall and the corresponding portal support frame legs, and between the B wall template and the box girder A wall.

2. The automated casting mold for three walls of a box girder according to claim 1, characterized in that, The protective wall template is detachably connected to both ends of the protective wall template. The protective wall template includes multiple sections spliced ​​along the mileage direction of the box girder, and a protective wall partition plate is provided between any two adjacent sections. The two ends of the B-wall formwork are detachably connected to the B-wall end formwork. The B-wall formwork consists of multiple sections spliced ​​along the mileage direction of the box girder, and a B-wall partition plate is provided between any two adjacent sections.

3. The automated casting mold for three walls of a box girder according to claim 1, characterized in that, The lower edge of the protective wall moving form is provided with an outward flange, and the middle part of the flange is provided with a downward protruding rib extending along its length direction. The two sides of the rib extend obliquely to the two sides of the flange. When the protective wall template is in the closed state, the lower surface of the ribs is at the same horizontal plane as the fixed mold of the protective wall.

4. The automated casting mold for three walls of a box girder according to claim 3, characterized in that, Multiple positioning seats are evenly distributed on the outer side of the moving formwork of the protective wall. The positioning seats are L-shaped. One end of the positioning seat abuts against the outer wall of the moving formwork of the protective wall and blocks the top of the flange. The other end of the positioning seat is anchored to the upper surface of the box girder by bolts.

5. The automated casting mold for three walls of a box girder according to claim 2, characterized in that, The protective wall partition includes a protective wall pull-out panel and a protective wall molded panel. Two of the protective wall molded panels are sandwiched on both sides of the protective wall pull-out panel. The protective wall pull-out panel has a longitudinally extending strip notch in the middle corresponding to two through-ribs of the protective wall. The protective wall forming panel is adapted to the cross section of the protective wall, including a first panel and a second panel spliced ​​together in the longitudinal direction. The splice joint of the first panel and the second panel is located at the through-rib on the upper side of the protective wall. The second panel is provided with horizontally extending longitudinal strip notches corresponding to the through-rib on the lower side. The joint between the first and second plates has a notch corresponding to the upper through-rib.

6. The automated casting mold for three walls of a box girder according to claim 2, characterized in that, The B-wall partition panel includes a B-wall pull-out panel and a B-wall molded panel. The B-wall molded panel is adapted to the cross-section of the B-wall, and two B-wall molded panels are correspondingly clamped on both sides of the B-wall pull-out panel.

7. The automated casting mold for three walls of a box girder according to claim 1, characterized in that, The outer side of the B-wall template is provided with a side beam corresponding to the positioning rod, and the side beam is provided with a hinge plate corresponding to the positioning rod.

8. The automated casting mold for three walls of a box girder according to claim 1, characterized in that, The portal support frame is equipped with lifting feet under the legs on the side of the protective wall moving form. The lifting feet include a screw sleeve, a stud, and a base plate. The screw sleeve is detachably connected to the lower end of the leg. The stud is threaded into the screw sleeve. The base plate is placed on the upper surface of the box beam and faces the stud. The stud abuts against the base plate. The height of the leg is adjusted by rotating the stud.

9. The automated casting mold for three walls of a box girder according to claim 8, characterized in that, The base plate is anchored to the box girder by bolts. The base plate has an undercut channel steel with a corresponding stud in the middle, and the undercut channel steel has a through hole with a corresponding stud in the middle.

10. The automated casting mold for three walls of a box girder according to claim 1, characterized in that, The portal frame has hanging points distributed above it, and the casting mold consists of multiple sections, each with a length of 12 meters or 8 meters.

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