Bridge prefabrication I-shaped beam bridge deck slab cantilever pouring system

Abstract

The utility model relates to the technical field of bridge construction, in particular to an I-beam bridge deck slab cantilever pouring system for bridge prefabrication, which comprises a plurality of cantilever bottom plates, one side of each cantilever bottom plate is provided with a cantilever side plate, each cantilever bottom plate is provided with a plurality of stabilizing rods, and an I-beam is provided with a communicating groove penetrating through the I-beam. A stable bracket is arranged on the top surface of the I-shaped beam; the stable support is provided with a locking rigid clamp assembly and a stable lifting rope assembly, the cantilever side plate is provided with a suspension hanging point assembly, the cantilever bottom plate is provided with a rubber cushion block, and the rubber cushion block is provided with a bridge deck formwork matched with the top face of an I-beam. An auxiliary cast-in-place assembly used for cast-in-place concrete construction is arranged on the stable support. Through the optimized design of structures such as the cantilever bottom plate and the like, the construction efficiency is improved, the construction safety and quality are enhanced, the construction cost is reduced, the labor intensity of workers is reduced, and the device is more environment-friendly and high in adaptability.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a cantilever casting system for a precast I-beam bridge deck of a bridge. Background Technique

[0002] As the backbone of transportation infrastructure, bridges carry the important mission of supporting the national economy and social development. In recent years, with the booming development of the transportation industry, the scale of bridge construction has expanded rapidly, and the demand for construction technology has also increased day by day. Cast-in-place concrete bridges occupy an important position among many bridge types with their unique advantages. However, the construction technology of such bridges is complex and the technical difficulty is high, which has strict requirements for the professional skills of the construction team and the equipment configuration.

[0003] Traditional construction methods for cast-in-place concrete bridges, such as the support construction method, the cantilever construction method, and the slip form construction method, etc., each have their own characteristics, but there are limitations in actual application. At present, these methods mostly rely on the combination of inner counterweight and outer cantilever formwork. However, in this mode, the construction process not only involves a variety of equipment and complex operation procedures, but also requires frequent turnover and use of formwork. This not only lengthens the construction period, but also increases the project cost. More seriously, the heavy counterweight blocks and imperfect external support systems not only increase the construction difficulty, but also may pose a threat to the safety of operators, thus restricting the further improvement of construction efficiency and quality control.

[0004] How to solve the above technical problems is the subject faced by the utility model. Summary of the Invention

[0005] In order to solve the deficiencies of the prior art, the utility model provides a cantilever casting system for a precast I-beam bridge deck of a bridge with reasonable design, safety and reliability. On the basis of deeply analyzing the traditional construction methods and combining the actual needs of bridge construction, targeted optimization and innovation are carried out, which can not only effectively shorten the construction period, improve the construction accuracy, but also reduce resource waste and environmental pollution during the construction process.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a cantilever casting system for a precast I-beam bridge deck of a bridge, including a plurality of cantilever bottom plates attached to the bottom surface of the I-beam, one side of the cantilever bottom plate is provided with a cantilever side plate, a plurality of stabilizing rods are arranged on the cantilever bottom plate, a communication groove penetrating through the I-beam is opened on the I-beam, and a stabilizing bracket connected to the stabilizing rods is arranged on the top surface of the I-beam; during use, the stabilizing rods penetrate through the communication groove;

[0007] A locking rigid clamp assembly connected to the stabilizing rod is provided on the stabilizing support. A stabilizing suspension rope assembly connected to the cantilever side plate is provided on the stabilizing support. A suspension hanging point assembly cooperating with the stabilizing suspension rope assembly is provided on the cantilever side plate. Rubber cushion blocks cooperating with the I-beam are provided on the cantilever bottom plate, and a bridge deck formwork cooperating with the top surface of the I-beam is provided on the rubber cushion blocks. An auxiliary in-situ casting assembly for in-situ concrete construction is provided on the stabilizing support.

[0008] Further, the stabilizing support includes a plurality of stabilizing sleeves cooperating with the stabilizing rod. A connecting bracket is provided between the plurality of stabilizing sleeves. A stabilizing screw rod cooperating with the stabilizing rod is provided on the stabilizing sleeve. The locking rigid clamp assembly is provided on the stabilizing sleeve.

[0009] Further, the locking rigid clamp assembly includes a locking through groove penetrating the stabilizing rod. A rigid clamp is provided in the stabilizing sleeve. A hook for hooking the cantilever bottom plate is provided at the bottom end of the rigid clamp. An expansion and stabilizing unit cooperating with the stabilizing support and used for expanding the rigid clamp is provided at the top end of the rigid clamp.

[0010] During use, the rigid clamp penetrates the stabilizing sleeve, the locking through groove, and cooperates with the cantilever bottom plate through the hook located at the bottom end of the rigid clamp.

[0011] Further, the stabilizing suspension rope assembly includes a steel rope. One end of the steel rope is fixedly connected to the stabilizing suspension rope assembly, and the other end of the steel rope is fixedly connected to the reserved steel bars on the web of the I-beam. A top-support hydraulic rod cooperating with the steel rope is provided on the stabilizing support. A top-support sliding wheel is provided at the moving end of the top-support hydraulic rod.

[0012] Further, a rotating frame is provided at one end of the cantilever bottom plate away from the I-beam. A rotating shaft cooperating with the rotating frame is provided on the cantilever side plate. Reinforcing ribs are provided on the cantilever bottom plate. A telescopic frame is provided on the cantilever bottom plate. A telescopic sliding frame slidingly cooperating with the telescopic frame is provided on the telescopic frame. A telescopic rod is provided on the telescopic sliding frame. The telescopic rod is rotatably connected to the cantilever side plate.

[0013] Further, the suspension hanging point assembly includes a hanging block provided on the cantilever side plate. A docking slot is formed in the hanging block. A hanging U-shaped frame cooperating with the docking slot is provided in the docking slot. A through groove is formed in the hanging block. A through slot cooperating with the through groove is formed in the hanging U-shaped frame. A linkage rod cooperating with the hanging U-shaped frame is provided in the through groove. A linkage nut is provided on the linkage rod. And a hanging ring connected to the stabilizing suspension rope assembly is provided on the hanging U-shaped frame.

[0014] Further, the auxiliary cast-in-place component includes an infrared rangefinder disposed on the stable support and used to adjust the height of the bridge deck casting vertex, and a leveling unit is disposed on the stable support and used to level the concrete in cooperation with the infrared rangefinder;

[0015] The leveling unit includes a screed board for leveling the concrete. A leveling rod is disposed on the screed board. A connecting groove for cooperating with the leveling rod is disposed on the stable support. A connecting screw rod for cooperating with the leveling rod is disposed on the stable support. A lapping frame for cooperating with the screed board is disposed on the cantilever side plate.

[0016] In the utility model, the cooperation of the stable rod, the stable sleeve and the locking pliers assembly makes the installation and disassembly more convenient, reduces the construction time and improves the construction efficiency. The cooperative design of the rubber cushion block and the bridge deck formwork effectively prevents the leakage of concrete, improves the construction quality and simplifies the operation steps at the same time.

[0017] In the utility model, the design of the steel wire rope and the top support hydraulic rod provides additional vertical support, ensures the structural stability during the concrete pouring, and reduces the potential safety hazards. The design of the pliers and the hook in the locking pliers assembly ensures the tight connection between the cantilever bottom plate and the I-beam, improves the overall structural stability and reduces the risks during the construction process.

[0018] In the utility model, the height of the bridge deck casting vertex is accurately measured by the infrared rangefinder, and the concrete is leveled in combination with the leveling unit, ensuring the flatness of the bridge deck and the construction quality. The cooperative design of the suspension hanging point assembly and the stable suspension rope assembly makes the connection between the cantilever side plate and the support more firm, further improving the construction quality.

[0019] In the utility model, the design of the cantilever bottom plate and the side plate enables the device to adapt to I-beams of different sizes, enhancing the flexibility and applicability of the construction. The design of the telescopic frame and the rotating frame enables the cantilever bottom plate and the side plate to be adjusted according to the actual construction requirements, improving the adaptability of the construction. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall cooperation of multiple integral structures of the utility model and the I-beam as a whole;

[0021] Figure 2 It is a schematic diagram of the overall cooperation of a single integral structure of the utility model and the I-beam as a whole;

[0022] Figure 3 It is a schematic diagram of the integral structure of the utility model from the first perspective;

[0023] Figure 4 It is a schematic diagram of the integral structure of the utility model from the second perspective;

[0024] Figure 5 This is a schematic diagram of the overall structure of the present utility model from the third perspective;

[0025] Among them, the attached drawing reference numerals are: 110, cantilever bottom plate; 111, rotating frame; 112, reinforcing rib; 120, cantilever side plate; 121, rotating shaft; 122, telescopic frame; 123, telescopic sliding frame; 124, telescopic rod; 130, stabilizing rod; 200, I-beam; 210, communication groove; 300, stabilizing bracket; 310, stabilizing sleeve; 320, connecting bracket; 400, locking rigid clamp assembly; 410, locking through groove; 420, rigid clamp; 430, hook; 440, stabilizing screw; 500, stabilizing suspension rope assembly; 510, steel rope; 520, top support hydraulic rod; 530, top support sliding wheel; 600, suspension hanging point assembly; 610, hanging block; 611, docking slot; 620, hanging U-frame; 630, linkage rod; 640, linkage nut; 650, eyebolt; 700, rubber cushion block; 800, auxiliary cast-in-place component; 810, infrared rangefinder; 820, leveling unit; 821, leveling plate; 822, leveling rod; 823, connecting groove; 824, connecting screw; 825, overlapping frame; Specific embodiments

[0026] See Figures 1 to 4 As shown, a cantilever casting system for a precast I-beam bridge deck of a bridge includes a plurality of cantilever bottom plates 110 that fit against the bottom surface of the I-beam 200. One side of the cantilever bottom plate 110 is provided with a cantilever side plate 120. A plurality of stabilizing rods 130 are provided on the cantilever bottom plate 110. A communication groove 210 that penetrates the I-beam 200 is formed on the I-beam 200. A stabilizing bracket 300 connected to the stabilizing rod 130 is provided on the top surface of the I-beam 200; during use, the stabilizing rod 130 penetrates the communication groove 210;

[0027] A locking rigid clamp assembly 400 connected to the stabilizing rod 130 is provided on the stabilizing bracket 300. A stabilizing suspension rope assembly 500 connected to the cantilever side plate 120 is provided on the stabilizing bracket 300. A suspension hanging point assembly 600 that cooperates with the stabilizing suspension rope assembly 500 is provided on the cantilever side plate 120. A rubber cushion block 700 that cooperates with the I-beam 200 is provided on the cantilever bottom plate 110. And a bridge deck formwork that cooperates with the top surface of the I-beam 200 is provided on the rubber cushion block 700. And an auxiliary cast-in-place component 800 for cast-in-place concrete construction is provided on the stabilizing bracket 300.

[0028] Specifically, the cantilever bottom plate 110 is closely attached to the bottom surface of the I-beam 200, providing the basic support for the bridge deck formwork. The stabilizing rod 130 passes through the connecting groove 210 on the I-beam 200 and is connected to the stabilizing bracket 300. The cantilever side plate 120 serves as the side enclosure of the bridge deck formwork, preventing the overflow during concrete pouring. At the same time, it is connected to the stabilizing bracket 300 through the stabilizing suspension rope assembly 500, forming a closed formwork with the cantilever bottom plate 110. The stabilizing rod 130 passes through the connecting groove 210 of the I-beam 200, connecting the cantilever bottom plate 110 and the stabilizing bracket 300, providing additional stability, and the stabilizing rod 130 is connected to the cantilever bottom plate 110 and the stabilizing bracket 300 through the locking clamp assembly 400. The stabilizing bracket 300 connects the stabilizing rod 130 and the locking clamp assembly 400, providing stable support for the entire formwork system. The locking clamp assembly 400 ensures the stable connection between the cantilever bottom plate 110 and the stabilizing bracket 300. The rubber cushion block 700 is placed on the cantilever bottom plate 110, cooperating with the top surface of the I-beam 200 to prevent concrete leakage and support the bridge deck formwork at the same time. The auxiliary in-situ casting assembly 800 is used to precisely control the pouring height and flatness of the bridge deck.

[0029] Furthermore, the stabilizing bracket 300 includes a number of stabilizing sleeves 310 that cooperate with the stabilizing rod 130. A connecting bracket 320 is arranged between the number of stabilizing sleeves 310. The stabilizing sleeve 310 is provided with a stabilizing screw 440 that cooperates with the stabilizing rod 130. The locking clamp assembly 400 is arranged on the stabilizing sleeve 310.

[0030] Specifically, the stabilizing bracket 300 is connected to the stabilizing rod 130, supporting and fixing the entire cantilever structure, and providing the supporting force and stability for the overall structure of the entire system.

[0031] Furthermore, the locking clamp assembly 400 includes a locking through groove 410 that penetrates the stabilizing rod 130. A clamp 420 is arranged in the stabilizing sleeve 310. A hook 430 that hooks the cantilever bottom plate 110 is arranged at the bottom end of the clamp 420. An expansion and stabilization unit that cooperates with the stabilizing bracket 300 and is used to expand the clamp 420 is arranged at the top end of the clamp 420.

[0032] During use, the clamp 420 passes through the stabilizing sleeve 310, the locking through groove 410, and cooperates with the cantilever bottom plate 110 through the hook 430 located at the bottom end of the clamp 420.

[0033] Among them, the expansion and stabilization unit includes barbs arranged at the top end of the clamp 420. In addition, the expansion and stabilization unit may further include a binding band arranged on the stabilizing bracket 300 and cooperating with the clamp 420.

[0034] Specifically, the locking steel clamp assembly 400 includes a locking through-slot 410, a steel clamp 420, a hook 430, and an expansion and stabilization unit. It is mainly connected to the cantilever base plate 110 through the steel clamp 420, and is connected to the stabilization sleeve 310 through the locking through-slot 410 and the steel clamp 420, and is fixed to the cantilever base plate 110 through the hook 430. The expansion and stabilization unit is used to ensure the stable connection between the steel clamp 420 and the stabilization bracket 300.

[0035] Furthermore, the stabilizing rope assembly 500 includes a steel rope 510, one end of which is fixedly connected to the stabilizing rope assembly 500, and the other end of the steel rope 510 is fixedly connected to the reserved steel bars located on the web of the I-beam 200. The stabilizing bracket 300 is provided with a supporting hydraulic rod 520 that cooperates with the steel rope 510, and a supporting sliding wheel 530 is provided at the movable end of the supporting hydraulic rod 520.

[0036] Specifically, the stabilizing rope assembly 500 includes a steel rope 510, a top support hydraulic rod 520 and a top support sliding wheel 530. The steel rope 510 connects the stabilizing bracket 300 and the reserved steel bars of the web of the I-beam 200. One end of the steel rope 510 is fixedly connected to the stabilizing bracket 300, and the other end is fixedly connected to the reserved steel bars of the web of the I-beam 200. Through the adjustment of the top support hydraulic rod 520 and the top support sliding wheel 530, vertical support and suspension are provided, the vertical support force of the structure is enhanced, and the vertical stability problem in cantilever construction is solved.

[0037] Furthermore, a rotating frame 111 is provided at one end of the cantilever base plate 110 away from the I-beam 200, a rotating shaft 121 cooperating with the rotating frame 111 is provided on the cantilever side plate 120, a reinforcing rib 112 is provided on the cantilever base plate 110, a telescopic frame 122 is provided on the cantilever base plate 110, a telescopic slide 123 slidably cooperating with the telescopic frame 122 is provided on the telescopic frame 122, a telescopic rod 124 is provided on the telescopic slide 123, and the telescopic rod 124 is rotatably connected to the cantilever side plate 120.

[0038] Furthermore, the suspension hanging point assembly 600 includes a suspension block 610 arranged on the cantilever side plate 120, the suspension block 610 is provided with a docking slot 611, the docking slot 611 is provided with a suspension U frame 620 that cooperates with the docking slot 611, the suspension block 610 is provided with a through slot, the suspension U frame 620 is provided with a through slot that cooperates with the through slot, the through slot is provided with a linkage rod 630 that cooperates with the suspension U frame 620, the linkage rod 630 is provided with a linkage nut 640, and the suspension U frame 620 is provided with a lifting ring 650 connected to the stable suspension rope assembly 500.

[0039] Specifically, the cantilever side plate 120 is connected to the rotating frame 111 of the cantilever bottom plate 110 through a rotating shaft 121. The telescopic carriage 123 is slidably fitted on the telescopic frame 122, and the telescopic rod 124 is rotatably connected to the cantilever side plate 120. The suspension block 610 is connected to the cantilever side plate 120. The suspension U-shaped frame 620 is inserted into the docking slot 611 of the suspension block 610 and is connected to the suspension ring 650 through a linkage rod 630 to firmly fix the suspension rope assembly 500.

[0040] Further, the auxiliary in-situ casting assembly 800 includes an infrared rangefinder 810 disposed on the stabilizing bracket 300 and used for adjusting the height of the apex of the bridge deck casting, and a leveling unit 820 disposed on the stabilizing bracket 300 and cooperating with the infrared rangefinder 810 for leveling the concrete.

[0041] The leveling unit 820 includes a screed plate 821 for leveling the concrete. A leveling rod 822 is disposed on the screed plate 821. A connection groove 823 cooperating with the leveling rod 822 is disposed on the stabilizing bracket 300. A connection screw 824 cooperating with the leveling rod 822 is disposed on the stabilizing bracket 300. A lapping frame 825 cooperating with the screed plate 821 is disposed on the cantilever side plate 120.

[0042] When not leveled, the above leveling unit 820 strengthens the connection relationship between the cantilever side plate 120 and the stabilizing bracket 300.

[0043] Specifically, the auxiliary in-situ casting assembly 800 is installed on the stabilizing bracket 300. The infrared rangefinder 810 is used to adjust the height of the apex of the bridge deck casting, and the leveling unit 820 is used for leveling the concrete.

[0044] The technical features not described in the present utility model can be realized by or adopted from the prior art and will not be elaborated herein. Of course, the above description is not a limitation to the present utility model, and the present utility model is not limited to the above examples. Changes, modifications, additions or substitutions made by those of ordinary skill in the art within the scope of the essence of the present utility model shall also fall within the protection scope of the present utility model.

Claims

1. A cantilever casting system for a prefabricated I-beam bridge deck, characterized in that: The invention comprises a plurality of cantilever bottom plates (110) which are in contact with the bottom surface of an I-beam (200); a cantilever side plate (120) is arranged on one side of the cantilever bottom plate (110); a plurality of stabilizing rods (130) are arranged on the cantilever bottom plate (110); a connecting groove (210) which passes through the I-beam (200); and a stabilizing bracket (300) which is connected to the stabilizing rod (130) is arranged on the top surface of the I-beam (200); when in use, the stabilizing rod (130) passes through the connecting groove (210); The stabilizing bracket (300) is provided with a locking clamp assembly (400) connected to the stabilizing rod (130), the stabilizing bracket (300) is provided with a stabilizing rope assembly (500) connected to the cantilever side plate (120), the cantilever side plate (120) is provided with a suspension point assembly (600) matched with the stabilizing rope assembly (500), the cantilever bottom plate (110) is provided with a rubber pad (700) matched with the I-beam (200), and the rubber pad (700) is provided with a bridge deck formwork matched with the top surface of the I-beam (200), and the stabilizing bracket (300) is provided with an auxiliary cast-in-place assembly (800) for cast-in-place concrete construction.

2. A cantilever casting system for a prefabricated I-beam bridge deck as claimed in claim 1, characterized in that: The stabilizing bracket (300) comprises a plurality of stabilizing sleeves (310) cooperating with the stabilizing rod (130), a connecting bracket (320) is arranged between the plurality of stabilizing sleeves (310), a stabilizing screw (440) cooperating with the stabilizing rod (130) is arranged on the stabilizing sleeve (310), and the locking pliers assembly (400) is arranged on the stabilizing sleeve (310).

3. A cantilever casting system for a prefabricated I-beam bridge deck as claimed in claim 2, characterized in that: The locking steel clamp assembly (400) comprises a locking through groove (410) penetrating the stabilizing rod (130); a steel clamp (420) is arranged in the stabilizing sleeve (310); a hook (430) for hooking the cantilever bottom plate (110) is arranged at the bottom end of the steel clamp (420); and an expansion stabilizing unit for cooperating with the stabilizing bracket (300) and for expanding the steel clamp (420) is arranged at the top end of the steel clamp (420); When in use, the rigid clamp (420) passes through the stabilizing sleeve (310) and the locking through-slot (410), and cooperates with the cantilever bottom plate (110) through the hook (430) located at the bottom end of the rigid clamp (420).

4. A cantilever casting system for a prefabricated I-beam bridge deck as claimed in claim 1, characterized in that: The stabilizing rope assembly (500) comprises a steel rope (510), one end of which is fixedly connected to the stabilizing rope assembly (500), and the other end of which is fixedly connected to a reserved steel bar located on the web of the I-beam (200). A supporting hydraulic rod (520) cooperating with the steel rope (510) is arranged on the stabilizing bracket (300), and a supporting sliding wheel (530) is arranged at the movable end of the supporting hydraulic rod (520).

5. A cantilever casting system for a prefabricated I-beam bridge deck as claimed in claim 1, characterized in that: A rotating frame (111) is arranged at one end of the cantilever bottom plate (110) away from the I-beam (200); a rotating shaft (121) cooperating with the rotating frame (111) is arranged on the cantilever side plate (120); a reinforcing rib (112) is arranged on the cantilever bottom plate (110); a telescopic frame (122) is arranged on the cantilever bottom plate (110); a telescopic slide (123) slidably cooperating with the telescopic frame (122) is arranged on the telescopic frame (122); a telescopic rod (124) is arranged on the telescopic slide (123); and the telescopic rod (124) is rotatably connected to the cantilever side plate (120).

6. A cantilever casting system for a prefabricated I-beam bridge deck as claimed in claim 1, characterized in that: The suspension point assembly (600) comprises a suspension block (610) arranged on the cantilever side plate (120), the suspension block (610) is provided with a docking slot (611), a suspension U frame (620) cooperating with the docking slot (611) is arranged in the docking slot (611), a through slot is arranged on the suspension block (610), a through slot cooperating with the through slot is arranged on the suspension U frame (620), a linkage rod (630) cooperating with the suspension U frame (620) is arranged in the through slot, a linkage nut (640) is arranged on the linkage rod (630), and a suspension ring (650) connected to the stabilizing suspension rope assembly (500) is arranged on the suspension U frame (620).

7. A cantilever casting system for a prefabricated I-beam bridge deck as claimed in claim 1, characterized in that: The auxiliary cast-in-place component (800) includes an infrared rangefinder (810) arranged on the stabilizing bracket (300) and used to adjust the height of the bridge deck casting top point, and the stabilizing bracket (300) is provided with a smoothing unit (820) that cooperates with the infrared rangefinder (810) and is used to achieve concrete leveling.

8. A cantilever casting system for a prefabricated I-beam bridge deck as claimed in claim 7, characterized in that: The smoothing unit (820) includes a smoothing plate (821) for leveling concrete, a smoothing rod (822) is provided on the smoothing plate (821), a connecting groove (823) cooperating with the smoothing rod (822) is provided on the stabilizing bracket (300), a connecting screw (824) cooperating with the smoothing rod (822) is provided on the stabilizing bracket (300), and a lap frame (825) cooperating with the smoothing plate (821) is provided on the cantilever side plate (120).

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