Transportation and secondary cutting device for high-rise concrete structures
By designing a transfer and secondary cutting device for high-rise concrete structures, and utilizing a hoisting mechanism and a secondary cutting support, the problem of safe transfer and multiple cutting of concrete structural components in high-rise buildings was solved, improving cutting efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG BAOYE CONSTR GROUP CO LTD
- Filing Date
- 2025-09-02
- Publication Date
- 2026-07-24
AI Technical Summary
In existing technologies, there are safety risks associated with cutting and transferring concrete structures in high-rise buildings, especially the safety hazards when the cut concrete structural components are hoisted to the ground from the high-rise, and the problem that the long cut lengths cannot be effectively transported.
A transfer and secondary cutting device for high-rise concrete structures was designed. The device uses a hoisting mechanism and an electric hoist in conjunction with a wire rope to transfer concrete structural components to high-rise buildings. The components are then cut multiple times within the high-rise floor slab using a secondary cutting bracket and a wire saw. Rollers and clamps are used for positioning and cutting.
It enables the safe transfer and multiple cutting of high-rise concrete structural components, reduces the safety risks of high-altitude operations, and improves cutting efficiency and safety.
Smart Images
Figure CN224549726U_ABST
Abstract
Description
Technical fields:
[0001] This utility model relates to the technical field of building beam and column cutting structures, and more specifically to a transfer and secondary cutting device for high-rise concrete structures. Background technology:
[0002] Currently, the concrete structures (including beams and columns) of some high-rise buildings require cutting after the overall concrete pouring is completed, due to considerations such as structural safety, construction needs, and seismic performance. While ground-level concrete structures can be cut using cutting machines or wire saws, high-altitude cutting operations on high-rise buildings present different challenges. An effective, safe, and feasible high-altitude cutting device is needed. Some have proposed using a hoisting structure to connect the concrete structural components to be cut, followed by wire sawing to dismantle the components (the first cut). However, the cut concrete components are still quite long, and directly hoisting them from the high-rise to the ground poses a safety risk. Therefore, another proposal is to transfer the dismantled concrete components to the corresponding high-rise floor slab, then use a wire saw for multiple cuts, dividing the concrete structure into segments that can be transported to the ground via a construction motor. Therefore, a device structure that can transfer concrete structures to high-rise floor slabs and perform multiple cuts is needed. Utility Model Content:
[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a transfer and secondary cutting device for high-rise concrete structures. This device facilitates the transfer of concrete structural components that have been cut and dismantled from high-rise buildings to the high-rise floor slab, and also facilitates the movement and multiple cutting of concrete structural components within the high-rise floor slab.
[0004] A transfer and secondary cutting device for high-rise concrete structures includes a lower floor slab and an upper floor slab of a high-rise building. A concrete structural member cut once is provided between the lower floor slab and the upper floor slab. The concrete structural member is connected to a hoisting mechanism, which includes a hook. The hook is fixed to the lower end of a steel wire rope and secured to the concrete structural member by a wide cloth strap. The upper end of the steel wire rope passes through the upper floor slab and is connected to a first electric hoist. The first electric hoist is fixed inside a U-shaped support frame, which is fixed to the upper floor slab by expansion bolts. A core tube shear wall is provided on the lower floor slab. A second electric hoist is fixed to the core tube shear wall by a steel cable. A steel wire pull rope is connected to the second electric hoist, and the end of the steel wire pull rope is fixedly connected to the concrete structural member by a steel wire rope buckle.
[0005] A protective template is laid on the lower floor slab directly below the support frame. A secondary cutting support is installed on the lower floor slab inside the protective template. The secondary cutting support includes a material support channel with several linearly and evenly distributed rollers. The side of the material support channel away from the steel wire pulling rope is formed with a cutting clearance opening opposite to the diamond wire saw on the wire saw machine. The cutting clearance opening divides the material support channel into a long feeding channel and a short transfer channel. Two sets of vertical channel steels are fixedly connected to the long feeding channel at the cutting clearance opening. The channel steels are distributed on both sides of the rollers. A connecting block is inserted and fixed in the channel steel on the upper side of the roller. A horizontal screw is screwed onto the connecting block. One end of the screw passes through the channel steel and is fixedly connected to a clamping plate, and the other end is fixedly connected to a handwheel.
[0006] Preferably, the material support channel has connecting edges formed on both sides, and several mounting holes are formed on the connecting edges. Expansion bolts are installed in the mounting holes, and the material support channel is fixed to the lower floor slab by the expansion bolts. The wire saw is also fixed to the lower floor slab by the expansion bolts.
[0007] Preferably, the upper surface of the protective template is flush with the upper end of the outer wall of the roller.
[0008] Preferably, the length of the roller on the secondary cutting bracket is greater than the width of the concrete structure.
[0009] Preferably, when the concrete structural member is a horizontal beam between the lower floor slab and the upper floor slab, two sets of steel wire ropes are provided on the beam and distributed at both ends of the beam; the steel wire ropes are fixedly connected to the middle of the beam.
[0010] The material support channel on the secondary cutting bracket is perpendicular to the steel wire pulling rope.
[0011] Preferably, when the concrete structural member is a vertical beam-column between the lower floor slab and the upper floor slab, the steel wire hoisting rope is fixedly installed at the upper end of the beam-column, and the steel wire pulling rope is fixedly connected to the lower end of the beam-column.
[0012] The steel wire pulling rope is parallel to and above the material support channel on the secondary cutting support.
[0013] The beneficial effects of this utility model are as follows:
[0014] This device facilitates the transfer of concrete structural components cut and dismantled from high-rise buildings to the high-rise floor slab, and also facilitates the movement and multiple cutting of concrete structural components within the high-rise floor slab. Attached image description:
[0015] Figure 1 This is a schematic diagram of the structure of this utility model during hoisting and transfer;
[0016] Figure 2This is a schematic diagram of the structure during the secondary cutting process of this utility model;
[0017] Figure 3 This is a top view of the secondary cutting bracket of this utility model.
[0018] In the diagram: 1. Lower floor slab; 2. Lower floor slab; 21. Perforation; 3. Concrete structural component; 4. Steel wire rope; 5. First electric hoist; 6. Bearing support; 7. Steel wire traction rope; 8. Second electric hoist; 9. Secondary cutting support; 91. Material support channel; 92. Channel steel; 93. Connecting block; 94. Screw rod; 95. Clamping plate; 96. Handwheel; 10. Core tube shear wall; 11. Protective formwork. Detailed implementation method:
[0019] Example: See Figure 1 , 2 As shown in Figure 3, a transfer and secondary cutting device for a high-rise concrete structure includes a lower floor slab 1 and an upper floor slab 2 of a high-rise building. A concrete structural component 3, cut once, is provided between the lower floor slab 1 and the upper floor slab 2. The concrete structural component 3 is connected to a hoisting mechanism, which includes a hook. The hook is fixed to the lower end of a steel wire rope 4 and tied to the concrete structural component 3 with a wide cloth strap. The upper end of the steel wire rope 4 passes through the upper floor slab 2 and is connected to a first electric hoist 5. The first electric hoist 5 is fixed to a U-shaped support bracket 6. The support bracket 6 is fixed to the upper floor slab 2 with expansion bolts. A core tube shear wall 10 is provided on the lower floor slab 1. A second electric hoist 8 is fixed to the core tube shear wall 10 with a steel cable. A steel wire pulling rope 7 is connected to the second electric hoist 8. The end of the steel wire pulling rope 7 is fixedly connected to the concrete structural component 3 with a steel wire rope buckle. A through hole 21 is provided on the upper floor slab 2, and the steel wire rope 4 is placed in the through hole 21.
[0020] A protective template 11 is laid on the lower floor slab 1 directly below the support bracket 6. A secondary cutting bracket 9 is set on the lower floor slab 1 inside the protective template 11. The secondary cutting bracket 9 includes a material support channel 91, on which several rollers 911 are arranged linearly and evenly. On the side of the material support channel 91 away from the steel wire pulling rope 7, a cutting clearance opening 912 is formed, which is opposite to the diamond wire saw on the wire saw machine. The cutting clearance opening 912 divides the material support channel 91 into a long feeding channel a and a short transfer channel b. Two sets of vertical channel steels 92 are fixedly connected to the long feeding channel a at the cutting clearance opening 912. The channel steels 92 are distributed on both sides of the rollers 911. A connecting block 93 is inserted and fixed in the channel steel 92 on the upper side of the rollers 911. A horizontal screw rod 94 is screwed onto the connecting block 93. One end of the screw rod 94 passes through the channel steel 92 and is fixedly connected to a clamping plate 95. The other end is fixedly connected to a handwheel 96.
[0021] The material support channel 91 has connecting edges formed on both sides, and several mounting holes are formed on the connecting edges. Expansion bolts are installed in the mounting holes. The material support channel 91 is fixed to the lower floor slab 1 by the expansion bolts. The wire saw is also fixed to the lower floor slab 1 by the expansion bolts. Both the wire saw and the material support channel 91 need to be stably fixed to the lower floor slab 1 in order to stably achieve secondary cutting of the concrete structural component 3.
[0022] The upper surface of the protective template 11 is flush with the upper end of the outer wall of the roller 911, which facilitates the movement of the concrete structural component 3 onto the roller 911 that supports the material channel 91.
[0023] The length of the roller 911 on the secondary cutting bracket 9 is greater than the width of the concrete structural member 3. Therefore, during the secondary cutting of the concrete structural member 3, the clamping plate 95 can be used to clamp and position the concrete structural member 3, thereby stabilizing the secondary cutting of the concrete structural member 3.
[0024] Because the concrete structural member 3, which is cut between the lower floor slab 1 and the upper floor slab 2, consists of horizontal beams and vertical columns, different hoisting and traction connection structures and corresponding arrangements of the material support channel 91 are required for the beams and columns. When the concrete structural member 3 is a horizontal beam between the lower floor slab 1 and the upper floor slab 2, two sets of steel wire ropes 4 are provided on the beam and distributed at both ends of the beam. The steel wire traction rope 7 is fixedly connected to the middle of the beam. The material support channel 91 on the secondary cutting support 9 is perpendicular to the steel wire traction rope 7. This facilitates the movement of the beam onto the material support channel 91. Figure 1 As shown in the figure.
[0025] When the concrete structural member 3 is a vertical beam-column between the lower floor slab 1 and the upper floor slab 2, the steel wire hoisting rope 4 is fixedly installed at the upper end of the beam-column, and the steel wire pulling rope 7 is fixedly connected to the lower end of the beam-column; the steel wire pulling rope 7 is parallel to and above the material support channel 91 on the secondary cutting bracket 9, so that the beam-column can be moved to the upper part of the material support channel 91 in an inclined state, and then the lower end of the beam-column first contacts the material support channel 91, and then the beam-column is laid down and falls entirely on the material support channel 91.
[0026] Working principle: This structure is a transfer and secondary cutting device for high-rise concrete structures. It is mainly designed to realize the transfer structure for secondary cutting of concrete structural components after demolition and to facilitate the wire saw machine to perform multiple structural operations.
[0027] Its transfer structure includes a hoisting structure consisting of a first electric hoist 5 and a steel wire rope 4, and a pulling structure consisting of a second electric hoist 8 and a steel wire pulling rope 7. The first electric hoist 5 releases the steel wire rope 4 to realize the downward movement of the concrete structure 3, while the second electric hoist 8 winds up the steel wire pulling rope 7 to place the concrete structure 3 on the material support channel 91 of the secondary cutting support 9.
[0028] The wire saw is set at the cutting clearance 912 of the secondary cutting support 9. When the concrete structure 3 is placed on the roller 911 of the material support channel 91, the rolling of the roller 911 pushes the concrete structure 3 to move. After the concrete structure 3 moves to the transfer short material channel b, the handwheel 96 is rotated to clamp and position the concrete structure 3, thus achieving secondary cutting.
[0029] The embodiments described above are illustrative of the present invention and are not intended to limit the present invention. Any person skilled in the art can modify the embodiments without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be as set forth in the claims.
Claims
1. A transfer and secondary cutting device for high-rise concrete structures, comprising the lower floor slab (1) and the upper floor slab (2) of a high-rise building. There is a concrete structural member (3) after primary cutting between the lower floor slab (1) and the upper floor slab (2). The concrete structural member (3) is connected to a hoisting mechanism. The hoisting mechanism includes a hook, and the hook is fixedly connected to the lower end of a steel wire sling (4) and is fixed to the concrete structural member (3) by a wide cloth belt. The upper end of the steel wire sling (4) passes through the upper floor slab (2) and is connected to a first electric hoist (5). The first electric hoist (5) is fixedly connected inside a "冂"-shaped bearing bracket (6), and the bearing bracket (6) is fixedly connected to the upper floor slab (2) by expansion studs; It is characterized in that: [[ID=~1]] The lower floor slab (1) is provided with a core tube shear wall (10). The second electric hoist (8) is fixedly connected to the core tube shear wall (10) by a steel cable. The second electric hoist (8) is connected with a steel wire pulling rope (7). The end of the steel wire pulling rope (7) is fixedly connected to the concrete structure (3). A protective template (11) is laid on the lower floor slab (1) directly below the support bracket (6). A secondary cutting bracket (9) is set on the lower floor slab (1) inside the protective template (11). The secondary cutting bracket (9) includes a material support channel (91), and the material support channel (91) is provided with several rollers (911) that are linearly and evenly distributed. The side of the material support channel (91) away from the steel wire pulling rope (7) is formed with a cutting clearance opening (912) opposite to the diamond wire saw on the wire saw machine. The cutting clearance opening (912) separates the support. The material conveyor (91) consists of a long feeding channel (a) and a short transfer channel (b); two sets of vertical channel steels (92) are fixedly connected to the long feeding channel (a) at the cutting clearance (912). The channel steels (92) are distributed on both sides of the drum (911). A connecting block (93) is inserted and fixed in the channel steel (92) on the upper side of the drum (911). A horizontal screw (94) is screwed onto the connecting block (93). One end of the screw (94) passes through the channel steel (92) and is fixedly connected to a clamp (95), and the other end is fixedly connected to a handwheel (96).
2. The transfer and secondary cutting device for high-rise concrete structures according to claim 1, characterized in that: The material support channel (91) has connecting edges formed on both sides, and several mounting holes are formed on the connecting edges. Expansion bolts are installed in the mounting holes. The material support channel (91) is fixed to the lower floor slab (1) by the expansion bolts. The wire saw is fixed to the lower floor slab (1) by the expansion bolts.
3. The transfer and secondary cutting device for high-rise concrete structures according to claim 1, characterized in that: The upper surface of the protective template (11) is flush with the upper end of the outer wall of the roller (911).
4. The transfer and secondary cutting device for high-rise concrete structures according to claim 1, characterized in that: The length of the roller (911) on the secondary cutting bracket (9) is greater than the width of the concrete structure (3).
5. The transfer and secondary cutting device for high-rise concrete structures according to claim 1, characterized in that: When the concrete structural member (3) is a horizontal beam between the lower floor slab (1) and the upper floor slab (2), two sets of steel wire ropes (4) are provided on the beam and distributed at both ends of the beam; the steel wire pulling rope (7) is fixedly connected to the middle of the beam. The material support channel (91) on the secondary cutting bracket (9) is perpendicular to the steel wire pulling rope (7).
6. The transfer and secondary cutting device for high-rise concrete structures according to claim 1, characterized in that: When the concrete structural member (3) is a vertical beam-column between the lower floor slab (1) and the upper floor slab (2), the steel wire hoisting rope (4) is fixedly installed at the upper end of the beam-column, and the steel wire pulling rope (7) is fixedly connected to the lower end of the beam-column. The steel wire pulling rope (7) is parallel to and above the material support channel (91) on the secondary cutting bracket (9).