A prefabricated reinforcement cage construction system and method for super high-rise core tube

Abstract

The application relates to a prefabricated reinforcement cage construction system and method of an ultrahigh-rise core tube, and belongs to the technical field of building engineering. The construction system comprises a steel platform, a hoisting mechanism and a translation mechanism. The hoisting mechanism is fixed on the steel platform and is used for hoisting the prefabricated reinforcement cage. The translation mechanism comprises multiple pushing plates and a power device. The multiple pushing plates are respectively located at four inner side walls of the steel platform. The power device is fixedly connected to the steel platform and is used for driving the pushing plates to move away from the inner side walls of the steel platform. The prefabricated reinforcement cage is hoisted to the upper side of the vertical steel bars on the core tube by the hoisting mechanism. Then, the power device is used for horizontally moving the pushing plates. The movement of the pushing plates pushes the side surface of the prefabricated reinforcement cage, so that the prefabricated reinforcement cage is aligned with the vertical steel bars on the core tube, and the construction efficiency of the prefabricated reinforcement cage is effectively improved.

Description

Technical Field

[0001] This application relates to the field of building engineering technology, and in particular to a precast steel cage construction system and method for a super high-rise core tube. Background Technology

[0002] Currently, in the construction of core tubes for high-rise and super high-rise buildings, steel platform formwork systems are often used. A steel platform formwork system includes a steel platform, a support system, a climbing system, and a scaffolding system. The support system includes a support tube frame, which is fixedly installed below the steel platform. The climbing system includes steel columns, upper climbing shoes, lower climbing shoes, and a hydraulic system. The upper climbing shoes are fixedly connected to the steel platform, and both the upper and lower climbing shoes are connected to the hydraulic system. The steel columns have several climbing shoe holes spaced along their height, and the lower end of the steel column connects to the top of the completed core tube wall.

[0003] The core tube is mainly composed of a steel reinforcement cage and concrete. Each time the steel platform climbs to a higher level, a layer of steel reinforcement cage needs to be connected to the already formed core tube before concrete is poured using formwork. The precast steel reinforcement cage is a cage structure made of multiple steel bars arranged and wound together. The precast steel reinforcement cage is hoisted onto the steel platform by a hoisting mechanism and fixedly connected to the vertical steel bars on the core tube.

[0004] However, during construction, it was found that aligning the precast steel cage with the vertical steel bars on the core tube was quite troublesome, which affected the construction efficiency of the precast steel cage. Summary of the Invention

[0005] To effectively improve construction efficiency, this application provides a precast steel cage construction system and method for super high-rise core tubes.

[0006] The objective of this application is to provide a precast steel cage construction system for the core tube of a super high-rise building, which adopts the following technical solution: A precast steel cage construction system for a super high-rise core tube includes a steel platform, a hoisting mechanism, and a translation mechanism. The hoisting mechanism is fixed to the steel platform for hoisting the precast steel cage. The translation mechanism includes multiple push plates and a power device. The multiple push plates are respectively located on the four inner walls of the steel platform. The power device is fixedly connected to the steel platform for driving the push plates away from the inner walls of the steel platform.

[0007] By adopting the above technical solution, the precast steel cage is hoisted to the top of the vertical steel bars on the core tube using a hoisting mechanism. Then, a power device is used to move the push plate horizontally. The movement of the push plate will push the side of the precast steel cage, making it easier for the precast steel cage to align with the vertical steel bars on the core tube, thus effectively improving the construction efficiency of the precast steel cage.

[0008] Optionally, the power unit includes a bidirectional lead screw, two sliding seats, two linkage rods, and a power assembly. The bidirectional lead screw is rotatably connected to the inner wall of the steel platform, and the power assembly is used to drive the bidirectional lead screw to rotate. The two sliding seats are respectively threaded to both ends of the bidirectional lead screw. One end of the linkage rod is hinged to the sliding seat, and the other end of the linkage rod is hinged to the push plate.

[0009] By adopting the above technical solution, the two sliding seats are moved closer or further apart by driving the bidirectional screw to rotate, thereby moving the push plate away from or closer to the inner wall of the steel platform, making the horizontal movement of the precast steel cage more stable.

[0010] Optionally, the inner wall of the steel platform is provided with a first receiving groove that is inserted into and cooperates with the push plate, and the two ends of the bidirectional lead screw are rotatably connected to the groove wall of the first receiving groove.

[0011] By adopting the above technical solution, after the precast steel cage is fixedly connected, the push plate can be driven close to the inner wall of the steel platform and inserted into the first receiving groove, which can reduce the impact of the presence of the push plate on the core tube pouring.

[0012] Optionally, a guide plate is hinged to the top of the push plate, and a torsion spring is sleeved on the hinge shaft of the guide plate. One end of the torsion spring is fixedly connected to the guide plate, and the other end of the torsion spring is fixedly connected to the push plate. The free end of the guide plate abuts against the inner wall of the steel platform.

[0013] By adopting the above technical solution, the positions of the push plates in each direction of the steel platform can be adjusted. During the process of the hoisting mechanism lowering the precast steel cage, the guide plate can push the precast steel cage to move horizontally, so that the precast steel cage falling between multiple push plates can be aligned with the vertical steel bars on the core tube, effectively improving the construction efficiency of the precast steel cage.

[0014] Optionally, the inner sidewall of the steel platform is provided with a second receiving groove that is inserted and matched with the guide plate. The groove wall of the second receiving groove is provided with a sliding groove, which is set along the height direction of the steel platform. A sliding block is slidably connected in the sliding groove, and the free end of the guide plate is hinged to the sliding block.

[0015] By adopting the above technical solution, when the pusher plate is located in the first receiving groove, the guide plate can be located in the second receiving groove, which can reduce the impact of the presence of the guide plate on the casting of the core tube.

[0016] Optionally, the power assembly includes a power motor, a worm gear, and a worm. The housing of the power motor is disposed inside the side wall of the steel platform. The output shaft of the power motor is fixedly connected to the worm. The worm gear is fixedly connected to a bidirectional lead screw, and the worm gear meshes with the worm.

[0017] By adopting the above technical solution, the worm gear and worm shaft cooperate to have a self-locking effect, which can reduce the situation where the push plate automatically moves horizontally when the position of the push plate is properly adjusted.

[0018] Optionally, the steel platform has two sets of translation mechanisms on one side, and a moving cavity is formed in the side wall of the steel platform. The moving cavity is located between the two sets of translation mechanisms, and a moving block is slidably connected in the moving cavity. The housing of the power motor is fixed on the moving block. A driving component for driving the moving block to move is provided in the moving cavity.

[0019] By adopting the above technical solution, the moving block is driven by the driving component, which facilitates the worm gear to mesh with the worm wheels on both sides. This allows for the adjustment of the two push plates on the same side of the steel platform, so as to better align the precast steel cage with the vertical steel bars on the core tube.

[0020] Another objective of this application is to provide a method for constructing precast steel cages for the core tube of super high-rise buildings, which adopts the following technical solution: A method for constructing a precast steel cage for the core tube of a super high-rise building includes the following steps: A hoisting mechanism is used to hoist the precast steel cage to the construction site on the steel platform, so that the precast steel cage is located above the vertical steel bars on the core tube; A power device is used to drive the push plates on each side of the steel platform to move horizontally, so that the precast steel cage is aligned with the vertical steel bars on the core tube. The precast steel cage is lowered using a hoisting mechanism, so that the bottom end of the precast steel cage is inserted into the threaded sleeve of the vertical steel bar, and the precast steel cage and the vertical steel bar on the core tube are fastened together through the threaded sleeve.

[0021] By adopting the above technical solution, the precast steel cage is hoisted to the top of the vertical steel bars on the core tube using a hoisting mechanism. Then, a power device is used to move the push plate horizontally. The movement of the push plate will push the side of the precast steel cage, making it easier for the precast steel cage to align with the vertical steel bars on the core tube, thus effectively improving the construction efficiency of the precast steel cage.

[0022] Optionally, when fastening the precast steel cage, a concrete pad protective layer is provided below the precast steel cage.

[0023] By adopting the above technical solution, the concrete pad block protective layer can support the precast steel cage, which facilitates the height restriction of the precast steel cage on the core tube, thereby protecting the workers rotating the threaded sleeve.

[0024] In summary, this application includes at least the following beneficial technical effects: 1. The precast steel cage is hoisted to the top of the vertical steel bars on the core tube by the hoisting mechanism, and then the power device is used to move the push plate horizontally. The movement of the push plate will push the side of the precast steel cage, which makes it easier for the precast steel cage to be aligned with the vertical steel bars on the core tube, effectively improving the construction efficiency of the precast steel cage. 2. After adjusting the positions of the push plates in each direction of the steel platform, the guide plate can push the precast steel cage to move horizontally during the process of the hoisting mechanism lowering it. This allows the precast steel cage, which falls between multiple push plates, to align with the vertical steel bars on the core tube, effectively improving the construction efficiency of the precast steel cage. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of a precast steel cage construction system for a super high-rise core tube according to an embodiment of this application; Figure 2 yes Figure 1 Enlarged view of section A; Figure 3 This is a partial structural cross-sectional view of an embodiment of this application, mainly used to illustrate the connection diagram of the translation mechanism; Figure 4 yes Figure 3 Enlarged view of section B; Figure 5 This is a partial structural cross-sectional view of an embodiment of this application, mainly used to show a schematic diagram of the connection between the precast steel cage and the tied steel cage.

[0026] Explanation of reference numerals in the attached drawings: 1. Steel platform; 2. Lifting mechanism; 3. Translation mechanism; 31. Push plate; 32. Power unit; 321. Two-way lead screw; 322. Sliding seat; 323. Linkage rod; 4. Power assembly; 41. Power motor; 42. Worm gear; 43. Worm; 5. First receiving groove; 6. Guide plate; 7. Torsion spring; 8. Second receiving groove; 9. Sliding groove; 10. Sliding block; 11. Moving cavity; 12. Moving block; 13. Driving component; 14. Precast steel cage; 15. Binding steel cage. Detailed Implementation

[0027] To make the purpose, technical solution, and advantages of this application clearer, the following description is provided in conjunction with the appendix. Figure 1-5The present application will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the application.

[0028] This application discloses a precast steel cage construction system for a super high-rise core tube. (Refer to...) Figure 1 The construction system includes a steel platform 1 and a hoisting mechanism 2. The steel platform 1 is assembled from four surrounding panels and a connecting base plate, and its height is the same as the height of four floors of the core tube, meaning that the steel platform 1 can cover four floors of the core tube. The hoisting mechanism 2 uses a crane, the bottom of which is bolted to the connecting base plate. The crane can be used to hoist precast steel cages 14, steel bars, and other items.

[0029] Reference Figure 1 To align the precast steel cage 14 with the vertical reinforcing bars on the core tube, the construction system also includes a translation mechanism 3. The translation mechanism 3 comprises multiple push plates 31 and a power unit 32. The push plates 31 are located on the four inner walls of the steel platform 1, and the power unit 32 is fixedly connected to the steel platform 1 to drive the push plates 31 away from the inner walls of the steel platform 1. Each side wall of the steel platform 1 has two sets of translation mechanisms 3, located on either side of the hoisting mechanism 2.

[0030] In this embodiment, in order to securely connect the precast steel cage 14 to the vertical steel bars on the core tube, the precast steel cage 14 is composed of multiple steel cage units. This allows the steel cage units located in different directions of the hoisting mechanism 2 to be hoisted separately, without the fixed connection of the steel cage units being affected by the hoisting mechanism 2. Different translation mechanisms 3 are used to translate each steel cage unit, ensuring that each steel cage unit is aligned with the vertical steel bars on the core tube.

[0031] Reference Figure 3 and Figure 4 To ensure smoother horizontal movement of the precast steel cage 14, the power unit 32 includes a bidirectional lead screw 321, two sliding seats 322, two linkage rods 323, and a power assembly 4. The bidirectional lead screw 321 is rotatably connected to the inner wall of the steel platform 1. The power assembly 4 drives the bidirectional lead screw 321 to rotate. The two sliding seats 322 are threaded to both ends of the bidirectional lead screw 321. One end of the linkage rod 323 is hinged to the sliding seat 322, and the other end is hinged to the push plate 31. By driving the bidirectional lead screw 321 to rotate, the two sliding seats 322 move closer to or further away from each other, thereby causing the push plate 31 to move further away from or closer to the inner wall of the steel platform 1, thus making the horizontal movement of the precast steel cage 14 smoother.

[0032] Reference Figure 3 and Figure 4The inner wall of the steel platform 1 is provided with a first receiving groove 5, which is inserted into the push plate 31. The two ends of the bidirectional screw 321 are rotatably connected to the groove wall of the first receiving groove 5. After the precast steel cage 14 is fixedly connected, the push plate 31 can be driven to approach the inner wall of the steel platform 1 and inserted into the first receiving groove 5, which can reduce the impact of the presence of the push plate 31 on the core tube pouring.

[0033] Reference Figure 3 and Figure 4 A guide plate 6 is hinged to the top of the push plate 31. A torsion spring 7 is sleeved on the hinge shaft of the guide plate 6. One end of the torsion spring 7 is fixedly connected to the guide plate 6, and the other end is fixedly connected to the push plate 31. The free end of the guide plate 6 abuts against the inner wall of the steel platform 1. After adjusting the position of the push plates 31 in each direction of the steel platform 1, the guide plate 6 can push the precast steel cage 14 to move horizontally during the process of the hoisting mechanism 2 lowering it. This allows the precast steel cage 14, which falls between multiple push plates 31, to align with the vertical steel bars on the core tube, effectively improving the construction efficiency of the precast steel cage 14.

[0034] Reference Figure 3 The inner wall of the steel platform 1 is provided with a second receiving groove 8 (e.g., Figure 2 The second receiving groove 8 is inserted into the guide plate 6, and a sliding groove 9 is provided on the groove wall of the second receiving groove 8 (e.g., Figure 2 The sliding groove 9 is set along the height direction of the steel platform 1; a sliding block 10 (such as...) is slidably connected inside the sliding groove 9. Figure 2 The free end of the guide plate 6 is hinged to the sliding block 10. When the push plate 31 is in the first receiving groove 5, the guide plate 6 can be placed in the second receiving groove 8, which can reduce the impact of the presence of the guide plate 6 on the casting of the core tube.

[0035] Reference Figure 3 and Figure 4 The power assembly 4 includes a power motor 41, a worm gear 42, and a worm 43. The housing of the power motor 41 is located inside the side wall of the steel platform 1. The output shaft of the power motor 41 is fixedly connected to the worm 43. The worm gear 42 is fixedly connected to the double-acting lead screw 321, and the worm gear 42 meshes with the worm 43. The cooperation between the worm gear 42 and the worm 43 has a self-locking effect, which reduces the possibility of the push plate 31 automatically moving horizontally when the position of the push plate 31 is properly adjusted.

[0036] Reference Figure 3 and Figure 4Two sets of translation mechanisms 3 are located on one side of the steel platform 1. A moving cavity 11 is formed in the side wall of the steel platform 1, and the moving cavity 11 is located between the two sets of translation mechanisms 3. A moving block 12 is slidably connected in the moving cavity 11, and the housing of the power motor 41 is fixed to the moving block 12. A driving component 13 for driving the moving block 12 is provided in the moving cavity 11. The driving component 13 is a driving cylinder. The moving block 12 is driven by the driving cylinder, which facilitates the engagement of the worm gear 43 with the worm wheels 42 on both sides. This allows for the adjustment of the two push plates 31 on the same side of the steel platform 1, so as to better align the precast steel cage 14 with the vertical steel bars on the core tube.

[0037] In this embodiment, the steel platform 1 ascends two floors at a time. The lower half of the steel platform 1 is fitted over the completed core tube, while the upper half of the steel platform 1 is located above the core tube. Simultaneously, vertical reinforcing bars for the tied reinforcing cage 15 protrude from the upper surface of the core tube. After the steel platform 1 reaches its designated position, two layers of reinforcing cages need to be installed inside the steel platform 1. The lower layer uses a precast reinforcing cage 14, and the upper layer uses a tied reinforcing cage 15. When the precast reinforcing cage 14 is hoisted onto the steel platform 1, a translation mechanism 3 is used to move it into position after hoisting it in, facilitating alignment between the precast reinforcing cage 14 and the pre-reserved vertical reinforcing bars on the core tube, thus connecting and fixing the precast reinforcing cage 14 to the reinforcing bars on the core tube. Then, reinforcing bars are manually tied above the precast reinforcing cage 14 to form the tied reinforcing cage 15. In this way, the precast steel cage 14 and the tied steel cage 15 can be used together to adjust the position of the vertical steel bars in the tied steel cage 15, so that the bottom end of the precast steel cage 14 is better aligned with the vertical steel bars of the tied steel cage 15, and the precast steel cage 14 can enhance the structural strength of the entire steel cage system.

[0038] The implementation principle of the precast steel cage construction system for a super high-rise core tube according to the embodiments of this application is as follows: During the construction of the standard floor of the core tube, the precast steel cage 14 is hoisted to the top of the vertical steel bars on the core tube by the hoisting mechanism 2, and then the power device 32 is used to make the push plate 31 move horizontally. The movement of the push plate 31 will push the side of the precast steel cage 14, which makes it easier for the precast steel cage 14 to be aligned with the vertical steel bars on the core tube, effectively improving the construction efficiency of the precast steel cage 14.

[0039] This application also discloses a method for constructing a precast steel cage for the core tube of a super high-rise building, including the following steps: Step 1: Use hoisting mechanism 2 to hoist the precast steel cage 14 to the construction site on steel platform 1, so that the precast steel cage 14 is located above the vertical steel bars on the core tube.

[0040] Step 2: Use power device 32 to drive the push plates 31 on each side of steel platform 1 to move horizontally, so that the precast steel cage 14 is aligned with the vertical steel bars on the core tube.

[0041] Step 3: Use the hoisting mechanism 2 to lower the aligned precast steel cage 14 so that the bottom end of the precast steel cage 14 is inserted into the threaded sleeve of the vertical steel bar, and the precast steel cage 14 and the vertical steel bar on the core tube are fastened together through the threaded sleeve.

[0042] In this embodiment, when fastening the precast steel cage 14, a concrete pad protective layer is provided below the precast steel cage 14. The concrete pad protective layer can support the precast steel cage 14, which facilitates limiting the height of the precast steel cage 14 on the core tube, thereby protecting the workers rotating the threaded sleeve. The precast steel cage 14 is hoisted above the vertical steel bars on the core tube by the hoisting mechanism 2, and then the push plate 31 is moved horizontally by the power device 32. The movement of the push plate 31 pushes the side of the precast steel cage 14, which facilitates the alignment of the precast steel cage 14 with the vertical steel bars on the core tube, effectively improving the construction efficiency of the precast steel cage 14.

[0043] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Any feature disclosed in this specification (including the abstract and drawings) may be replaced by other equivalent or similar features unless specifically stated otherwise. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A precast steel cage construction system for a super high-rise core tube, characterized in that, The system includes a steel platform (1), a hoisting mechanism (2), and a translation mechanism (3). The hoisting mechanism (2) is fixed on the steel platform (1) for hoisting the precast steel cage (14). The translation mechanism (3) includes multiple push plates (31) and a power device (32). The multiple push plates (31) are located on the four inner walls of the steel platform (1). The inner walls of the steel platform (1) are provided with first receiving grooves (5) that are inserted and matched with the push plates (31). The power unit (32) includes a bidirectional lead screw (321), two sliding seats (322), two linkage rods (323) and a power assembly (4). The bidirectional lead screw (321) is rotatably connected to the wall of the first receiving groove (5). The two sliding seats (322) are respectively threaded to the two ends of the bidirectional lead screw (321). One end of the linkage rod (323) is hinged to the sliding seat (322) and the other end is hinged to the push plate (31) to drive the push plate (31) to extend horizontally out of the first receiving groove (5) or be stored in the first receiving groove (5). The top of the push plate (31) is hinged to a guide plate (6), and a torsion spring (7) is sleeved on the hinge shaft of the guide plate (6). The inner side wall of the steel platform (1) is provided with a second receiving groove (8) that is inserted and matched with the guide plate (6). The groove wall of the second receiving groove (8) is provided with a sliding groove (9) along the height direction. A sliding block (10) is slidably connected in the sliding groove (9). The free end of the guide plate (6) is hinged to the sliding block (10). The power unit (32) is fixedly connected to the steel platform (1) and is used to drive the push plate (31) to move horizontally so as to push the precast steel cage (14) that has been hoisted into place to be precisely aligned with the vertical steel bars on the core tube.

2. The precast steel cage construction system for a super high-rise core tube according to claim 1, characterized in that, The power assembly (4) includes a power motor (41), a worm gear (42) and a worm (43). The housing of the power motor (41) is disposed inside the side wall of the steel platform (1). The output shaft of the power motor (41) is fixedly connected to the worm (43). The worm gear (42) is fixedly connected to the double-acting lead screw (321), and the worm gear (42) meshes with the worm (43).

3. The precast steel cage construction system for a super high-rise core tube according to claim 2, characterized in that, The steel platform (1) has two sets of translation mechanisms (3) on one side. A moving cavity (11) is opened in the side wall of the steel platform (1). The moving cavity (11) is located between the two sets of translation mechanisms (3). A moving block (12) is slidably connected in the moving cavity (11). The outer shell of the power motor (41) is fixed on the moving block (12). A driving component (13) for driving the moving block (12) to move is provided in the moving cavity (11).

4. A method for constructing a precast steel cage for a super high-rise core tube, comprising a precast steel cage construction system for a super high-rise core tube according to any one of claims 1-3, characterized in that, Includes the following steps: The precast steel cage (14) is hoisted to the construction site on the steel platform (1) using a hoisting mechanism (2), so that the precast steel cage (14) is located above the vertical steel bars on the core tube; A power device (32) is used to drive the push plates (31) on each side of the steel platform (1) to move so as to push the side of the precast steel cage (14) to move horizontally, so that the precast steel cage (14) is aligned with the vertical steel bars on the core tube; The precast steel cage (14) is lowered using a hoisting mechanism (2) so that the bottom end of the precast steel cage (14) is inserted into the threaded sleeve of the vertical steel bar, and the precast steel cage (14) and the vertical steel bar on the core tube are fastened together through the threaded sleeve.

5. The method for constructing a precast steel cage for a super high-rise core tube according to claim 4, characterized in that, When fastening the precast steel cage (14), a concrete pad protective layer is provided below the precast steel cage (14).

Images