Jacking beam-falling construction platform

Abstract

The utility model discloses a jacking beam-falling construction platform which comprises a carrying pole beam, a main platform and a side platform, the main platform and the side platform are detachably connected to form a main body construction platform structure, and a hanging rod is hinged to the side platform. The whole construction platform is supported on an end block of a pier top cover beam at the corresponding position of the side platform through a hanging rod, the corresponding position of the main platform is supported on the pier top cover beam by penetrating a carrying pole beam into a hanging lug in the longitudinal direction of a bridge, and the hanging rod and the carrying pole beam jointly provide vertical support for the whole construction platform, so that the supporting safety is improved; the whole construction platform can be directly lifted and removed, or the main platform and the side platform are lifted by a certain height, hinged locking is relieved, the hanging rod is rotated outwards, the carrying pole beam is pulled out, and the whole construction platform is put down to the bottom of the buttress to be disassembled and transferred, and the assembling and disassembling mode is more flexible.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology. More specifically, this utility model relates to a jacking and lowering beam construction platform. Background Technology

[0002] After the steel beam is pushed into place, it needs to be lowered to the designed position; this process is called beam lowering. A transformation of the load-bearing system is required, changing the load on the steel beam from that jacked to that on the supports. Depending on the site elevation, this is divided into high-level beam lowering and lowering within the lifting stroke of a walking machine. During construction, high-altitude operations such as concrete pouring for the bearing pad, support installation and grouting, and coordinating with the jacking and lowering of the beam are required. Before these operations, a construction platform must be set up on the top of the pier. This platform must not only meet the space requirements for construction operations on the pier top but also provide high-altitude edge protection.

[0003] Existing construction platforms typically employ either corbels on piers for upward support or prefabrication followed by hoisting and support on the pier top. Corbels and similar structures require numerous embedded parts on the pier body or cap beam, making installation and dismantling difficult. Furthermore, the holes in the embedded parts on the pier body or cap beam must be repaired after removal, impacting the main structure and its appearance. Prefabricated platforms, which only rely on support structures on the pier top, pose safety risks and have a fixed, monotonous structure, requiring remanufacturing for different pier top structures. Dismantling also necessitates upward hoisting. Summary of the Invention

[0004] The purpose of this utility model is to provide a jacking and lowering beam construction platform to solve the technical problem that the installation of the pier top construction platform requires the installation of embedded parts on the cap beam, resulting in an inflexible installation and dismantling method.

[0005] To achieve these objectives and other advantages according to this utility model, a beam lifting and lowering construction platform is provided, comprising:

[0006] The spreader beams are installed in pairs on the top surface of the pier cap beam and are set along the longitudinal direction of the bridge.

[0007] The main platforms are arranged in pairs along the transverse direction of the bridge on both sides of the cap beam. The length of the main platform is less than the distance between the two end blocks on the cap beam. The top of the main platform is flush with the top center of the cap beam. Each main platform has a pair of spreader beams connected to the top with lugs. Each spreader beam passes through the same longitudinal lug to support the corresponding ends of the pair of main platforms.

[0008] The side platforms are C-shaped structures in the horizontal plane and are set in pairs on both sides of the width direction of the cap beam. The two ends of each side platform are detachably connected to the corresponding ends of the pair of main platforms. The pair of side platforms and the pair of main platforms are fitted together to surround the outside of a cap beam to form a connected lifting and lowering construction platform. Each side platform has a gate-shaped hanging rod hinged upward on both longitudinal sides of the cap beam. The size of the hanging rod is set to match the end block structure of the cap beam. The hanging rod is used to hang on the top surface of the corresponding end block in the vertical state to provide upward support for the side platform.

[0009] Preferably, the main platform includes a pair of parallel side rails and a main base plate connected between the bottoms of the pair of side rails. The upper and lower ends of the side rails are parallel horizontal bars, and vertical bars are connected between the upper and lower horizontal bars at intervals. The end of each horizontal bar is a sleeve. The two ends of the side platform are a pair of parallel side rails and a side base plate connected between the bottoms of the pair of side rails. The upper and lower ends of the side rails are parallel horizontal bars, and vertical bars are connected between the upper and lower horizontal bars at intervals. The end of each horizontal bar is an insert. The sleeve and the insert form a nested structure. The horizontal bars and side bars are the same size, and the vertical bars and side bars are the same size. A locking mechanism is also provided between the corresponding nested structures of the opposite horizontal bars and side bars to lock the position of the sleeve and the insert.

[0010] Preferably, the locking mechanism between the pair of sleeves and the insert includes a vertically arranged first end plate and a second end plate. The width of the first end plate and the second end plate is not greater than the width of the side crossbar. A first screw hole is provided on the first end plate, and a second screw hole is provided on the second end plate. The first end plate is connected to the outer edge of the sleeve, and the second end plate is connected to the side of the side crossbar located on the inner end of the insert. When the insert is fully inserted into the sleeve, the first end plate and the second end plate are exactly fitted together and the first screw hole and the second screw hole are aligned. A bolt is screwed into the first screw hole and the second screw hole for fastening.

[0011] Preferably, the locking mechanism on the upper side crossbar and the side crossbar is located at the top of the corresponding side crossbar, and the locking mechanism on the lower side crossbar and the side crossbar is located at the bottom of the corresponding side crossbar.

[0012] Preferably, the bottom of the main base plate and the side base plate are connected in pairs along the length direction with support legs, and the bottom of the support legs is set at a height lower than the bottom of the locking mechanism on the lower side.

[0013] Preferably, a stiffening rod is connected to the outer side of the side rail on the side away from the cap beam.

[0014] Preferably, the top surface of the spreader beam has two hanging ears with downward-facing insertion holes on the outer edges of the two ears closest to the corresponding side ends, and the insertion holes are threaded with limit screws.

[0015] This utility model has at least the following beneficial effects: The lifting and lowering beam construction platform of this utility model includes a spreader beam, a main platform, and a side platform. The main platform and the side platform are detachably connected to form the main construction platform structure. Hanging rods are hinged on the side platforms. The entire construction platform is supported on the end blocks of the pier cap beam at the corresponding positions on the side platforms by the hanging rods. The main platform is supported on the pier cap beam at the corresponding positions by the spreader beams inserted longitudinally along the bridge inside the hanging ears. The hanging rods and the spreader beams provide vertical support for the entire construction platform, which helps to improve the support safety. When installing and dismantling the construction platform, it can be directly lifted and removed as a whole, or the main platform and the side platforms can be lifted to a certain height, the hinge lock can be released, the hanging rods can be rotated outward, the spreader beams can be pulled out, and the entire construction platform can be lowered to the bottom of the pier for dismantling and transfer. The installation and dismantling methods are more flexible.

[0016] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0017] Figure 1 This is the main view of the present invention.

[0018] Figure 2 This is a top view of the structure of this utility model;

[0019] Figure 3 This is an enlarged structural diagram of the locking mechanism of this utility model.

[0020] Explanation of reference numerals in the accompanying drawings: 1. Cap beam, 2. Spreader beam, 3. Main platform, 4. Hanging lug, 5. Side platform, 6. Hanging rod, 7. Side railing, 8. Main base plate, 9. Side horizontal bar, 10. Side vertical bar, 11. Sleeve, 12. Side railing, 13. Side base plate, 14. Side horizontal bar, 15. Side vertical bar, 16. Insert rod, 17. Locking mechanism, 18. First end plate, 19. Second end plate, 20. Bolt, 21. Support leg, 22. Stiffening rod, 23. Limiting screw. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0022] In the description of this utility model, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] like Figure 1 , Figure 2 As shown, the jacking and lowering beam construction platform of this utility model includes:

[0024] The spreader beam 2 is installed in pairs on the top surface of the pier cap beam 1 and is set along the longitudinal direction of the bridge.

[0025] The main platform 3 is arranged in pairs along the transverse direction of the bridge on both sides of the length of the cap beam 1. The length of the main platform 3 is less than the distance between the two end blocks on the cap beam 1. The top of the main platform 3 is flush with the center top of the cap beam 1. The top of each main platform 3 corresponds to a pair of flat beams 2 with hanging lugs 4 connected upwards. Each flat beam 2 passes through the hanging lugs 4 in the same longitudinal direction to support the corresponding ends of the pair of main platforms 3 upwards.

[0026] Side platforms 5 are C-shaped structures in the horizontal plane and are set in pairs on both sides of the width direction of the cap beam 1. The two ends of each side platform 5 are detachably connected to the corresponding ends of a pair of main platforms 3. The pair of side platforms 5 and the pair of main platforms 3 are fitted together to surround the outside of a cap beam 1 to form a connected lifting and lowering beam construction platform. Each side platform 5 has a gate-shaped hanging rod 6 hinged upward on both longitudinal sides of the cap beam 1. The size of the hanging rod 6 is matched with the end block structure of the cap beam 1. The hanging rod 6 is used to hang on the top surface of the corresponding end block in the vertical state to provide upward support for the side platform 5.

[0027] The dimensions of the main platform 3, the spreader beam 2, and the side platform 5 are determined according to the dimensions of the cap beam 1. The main platform 3 and the side platform 5 are made of basically the same material and have the same individual structural dimensions. They are constructed by welding longitudinal, transverse, and vertical members. Two C-shaped side platforms 5 are detachably connected to two main platforms 3, such as by bolts 20 or plug-in fixing, to form a rectangular ring-shaped construction platform that surrounds the outside of the cap beam 1 on the pier top, serving as the working space for construction personnel. When using overall hoisting, the side platform 5 can be detachably connected to the main platform 3 first. The hanging rod 6 is rotated to a vertical state under the action of hinge and the rotation angle is temporarily locked. The spreader beam 2 is inserted into the hanging lug 4 of the main platform 3 in advance. Stop structures are set at both ends of the spreader beam 2 to prevent the hanging lug 4 on the main platform 3 from slipping. The spreader beam 2 or the hanging rod 6 is hoisted and placed on the cap beam 1 on the pier top. The main platform 3 is then positioned on the cap beam 1. Figure 1 As shown on both the front and rear sides, the side platform 5 is located on the cap beam 1. Figure 1 As shown on the left and right sides, a pair of spreader beams 2 are spaced apart on the inner top surface of the cap beam 1 on the pier top, without interfering with the installation of subsequent pad blocks and other structures. Hanging rods 6 are hung and supported on the top of the end blocks at both ends of the cap beam 1. This means that the two hanging rods 6 and the two spreader beams 2 provide vertical support for the entire construction platform, which helps to improve the safety of the support. When removing the construction platform, it can be lifted and removed directly as a whole, or the main platform 3 and the side platform 5 can be lifted to a certain height, the hinge lock can be released, the hanging rods 6 can be rotated outward, the spreader beams 2 can be pulled out, and then the construction platform can be moved down to the bottom of the pier. After that, it can be disassembled and transferred. The installation and dismantling methods are more flexible.

[0028] In another technical solution, such as Figure 1-2 As shown, the main platform 3 includes a pair of parallel side rails 7 and a main base plate 8 connected between the bottoms of the pair of side rails 7. The upper and lower ends of the side rails 7 are parallel side horizontal bars 9, and side vertical bars 10 are connected between the upper and lower side horizontal bars 9 at intervals. The end of each side horizontal bar 9 is set as a sleeve 11. The two ends of the side platform 5 are a pair of parallel side rails 12 and a side base plate 13 connected between the bottoms of the pair of side rails 7. The upper and lower ends of the side rails 12 are parallel side horizontal bars 14, and side vertical bars 15 are connected between the upper and lower side horizontal bars 14 at intervals. The end of each side horizontal bar 14 is set as an insertion rod 16. The sleeve 11 and the insertion rod 16 are configured to form a nested structure. The side horizontal bars 9 and side horizontal bars 14 are the same size, and the side vertical bars 10 and side vertical bars 15 are the same size. A locking mechanism 17 is also provided between the corresponding nested structures of the opposite side horizontal bars 9 and side horizontal bars 14 to lock the position of the sleeve 11 and the insertion rod 16.

[0029] The main platform 3 is composed of a main base plate 8, side crossbars 9, and side vertical bars 10 to form the main frame structure. The side platform 5 is composed of a side base plate 13, side crossbars 14, and side vertical bars 15 to form the main frame structure. The main platform 3 and the side platform 5 are aligned and fitted together so that the insert rods 16 at the four corners can be inserted into the sleeve 11 along the same axis. After the insert rods 16 extend into the bottom of the sleeve 11, they are connected by the locking mechanism 17 to form the overall structure of the construction platform.

[0030] In another technical solution, such as Figure 3As shown, between the pair of sleeves 11 and the insertion rod 16, the locking mechanism 17 includes a vertically arranged first end plate 18 and a second end plate 19. The width of the first end plate 18 and the second end plate 19 is not greater than the width of the side crossbar 9. The first end plate 18 has a first screw hole, and the second end plate 19 has a second screw hole. The first end plate 18 is connected to the outer edge of the sleeve 11, and the second end plate 19 is connected to the side crossbar 14 located on the inner end side of the insertion rod 16. When the insertion rod 16 is fully inserted into the sleeve 11, the first end plate 18 and the second end plate 19 are exactly fitted together and the first screw hole and the second screw hole are aligned. A bolt 20 is screwed into the first screw hole and the second screw hole for fastening.

[0031] The locking mechanism 17 is easy to connect and disconnect. Aligning the first screw hole with the second screw hole indicates that the main platform 3 and the side platform 5 are properly aligned and installed. The first end plate 18 is set on the sleeve 11 and the second end plate 19 is set on the rear end of the insertion rod 16. This strengthens the nested structure position of the insertion rod 16 into the sleeve 11 and also helps to improve the safety and stability of the structural connection and support.

[0032] In another technical solution, such as Figure 1 As shown, the locking mechanism 17 on the upper side crossbar 9 and the side crossbar 14 is disposed at the top of the corresponding side crossbar 9, and the locking mechanism 17 on the lower side crossbar 9 and the side crossbar 14 is disposed at the bottom of the corresponding side crossbar 9.

[0033] The locking mechanism 17 is arranged on the upper and lower sides of the main platform 3, which does not prevent the main platform 3 from being close to the corresponding side of the cap beam 1, and makes installation and removal more convenient.

[0034] In another technical solution, such as Figure 1 As shown, the bottom of the main base plate 8 and the side base plate 13 are connected in pairs along the length direction with support legs 21, and the bottom of the support legs 21 is set at a height lower than the bottom of the locking mechanism 17 below.

[0035] Support feet 21 are symmetrically installed at the bottom of the pair of side crossbars 9 and the bottom of the pair of side crossbars 14 on the lower side to protect the bottom of the construction platform and the locking mechanism 17 on the lower side, preventing direct contact with the ground.

[0036] In another technical solution, such as Figure 1-2 As shown, a stiffening rod 22 is connected to the outer side of the side rail 7 on the side away from the cap beam 1. The stiffening rod 22 is generally set as a diagonal rod, connecting multiple side vertical rods 10 or side vertical rods 15 to enhance the overall stability of the construction platform structure.

[0037] In another technical solution, such as Figure 2As shown, the top surface of the spreader beam 2 has two hanging ears 4 with downward-facing insertion holes on the outer edges of the two hanging ears 4 closest to the corresponding side ends. The insertion holes are connected to limit screws 23 with internal threads. This structure is easy to install and remove and limits the position of the spreader beam 2 relative to the hanging ears 4, preventing the spreader beam 2 from slipping off the hanging ears 4 during construction.

[0038] In summary, the jacking and lowering construction platform of this utility model includes a spreader beam 2, a main platform 3, and a side platform 5. The main platform 3 and the side platform 5 are detachably connected to form the main construction platform structure. A hanging rod 6 is hinged on the side platform 5. The entire construction platform is supported on the end block of the pier cap beam 1 at the corresponding position of the side platform 5 by the hanging rod 6. The main platform 3 is supported on the pier cap beam 1 at the corresponding position by the spreader beam 2 inserted longitudinally into the bridge through the lug 4. The hanging rod 6 and the spreader beam 2 provide vertical support for the entire construction platform, which helps to improve the support safety. When installing and dismantling the construction platform, it can be directly lifted and removed as a whole, or the main platform 3 and the side platform 5 can be lifted to a certain height, the hinge lock can be released, the hanging rod 6 can be rotated outward, the spreader beam 2 can be pulled out, and the entire construction platform can be lowered to the bottom of the pier for dismantling and transfer. The installation and dismantling methods are more flexible.

[0039] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the drawings shown and described herein.

Claims

1. A beam-lifting and lowering construction platform, characterized in that, include: The spreader beams are installed in pairs on the top surface of the pier cap beam and are set along the longitudinal direction of the bridge. The main platforms are arranged in pairs along the transverse direction of the bridge on both sides of the cap beam. The length of the main platform is less than the distance between the two end blocks on the cap beam. The top of the main platform is flush with the top center of the cap beam. Each main platform has a pair of spreader beams connected to the top with lugs. Each spreader beam passes through the same longitudinal lug to support the corresponding ends of the pair of main platforms. The side platforms, which are C-shaped structures in the horizontal plane, are paired and set on both sides of the cap beam in the width direction. The main platform includes parallel side crossbars at both ends, and the end of each side crossbar is set as a sleeve. The side platforms also include parallel side crossbars at both ends, and the end of each side crossbar is set as an insert rod. The sleeves and insert rods are arranged in a nested structure. A locking mechanism is also provided between the corresponding nested structures of the opposite side crossbars and side crossbars to lock the position of the sleeves and insert rods, so that the two ends of each side platform are detachably connected to the corresponding ends of the pair of main platforms. The pair of side platforms and the pair of main platforms are fitted together to surround the outside of a cap beam to form a connected lifting and lowering construction platform. Each side platform has a gate-shaped hanging rod hinged upward on both longitudinal sides of the cap beam. The size of the hanging rod is set to match the end block structure of the cap beam. The hanging rod is used to hang on the top surface of the corresponding end block in the vertical state to provide upward support for the side platform.

2. The jacking and lowering beam construction platform as described in claim 1, characterized in that, The main platform includes a pair of parallel side rails and a main base plate connected between the bottom of the pair of side rails. The upper and lower ends of the side rails are parallel horizontal bars, and vertical bars are connected between the upper and lower horizontal bars at intervals. The two ends of the side platform are a pair of parallel side rails and a side base plate connected between the bottom of the pair of side rails. The upper and lower ends of the side rails are parallel horizontal bars, and vertical bars are connected between the upper and lower horizontal bars at intervals. The horizontal bars and the side bars are the same size, and the vertical bars and the side bars are the same size.

3. The jacking and lowering beam construction platform as described in claim 2, characterized in that, Between the sleeve and the insertion rod, the locking mechanism includes a first end plate and a second end plate arranged vertically. The width of the first end plate and the second end plate is not greater than the width of the side crossbar. A first screw hole is opened on the first end plate and a second screw hole is opened on the second end plate. The first end plate is connected to the outer edge of the sleeve, and the second end plate is connected to the side of the side crossbar located on the inner end of the insertion rod. When the insertion rod is fully inserted into the sleeve, the first end plate and the second end plate are exactly fitted together and the first screw hole and the second screw hole are aligned. A bolt is screwed into the first screw hole and the second screw hole for fastening.

4. The jacking and lowering beam construction platform as described in claim 3, characterized in that, The locking mechanism on the upper side crossbar and the side crossbar is located at the top of the corresponding side crossbar, and the locking mechanism on the lower side crossbar and the side crossbar is located at the bottom of the corresponding side crossbar.

5. The jacking and lowering beam construction platform as described in claim 4, characterized in that, The bottom of the main base plate and the side base plate are connected in pairs along the length direction with support legs, and the bottom of the support legs is set at a height lower than the bottom of the locking mechanism on the lower side.

6. The jacking and lowering beam construction platform as described in claim 2, characterized in that, A stiffening rod is attached to the outer side of the side rail on the side away from the cap beam.

7. The jacking and lowering beam construction platform as described in claim 1, characterized in that, The top surface of the spreader beam has two hanging ears with downward-facing insertion holes on the outer edges of the two ears closest to the corresponding side ends, and the insertion holes are threaded with limit screws.

Images