Turnover extra-long distance tower crane attachment construction device

Abstract

The utility model relates to the technical field of tower crane attachment construction, and discloses a turnover ultra-long distance tower crane attachment construction device which comprises two branches, connecting plates are fixedly mounted on the peripheries of the two branches, and attachment pull rods are fixedly mounted in the two branches; the auxiliary connecting assembly comprises a connecting rod installed on the two branches and an inserting groove formed in the connecting rod, and a pin shaft is inserted into the inserting groove. Through the arrangement of the auxiliary connecting assembly and the fixing assembly, the problem that a common externally-attached tower crane is overlong in attachment can be solved; and the turnover use of the super-long attachment rod piece is realized, the cost of repeated processing and mounting is reduced, the construction cost is greatly reduced, and remarkable economic and social benefits are achieved, so that the adaptability of the super-long attachment device of the externally-attached tower crane is improved.

Description

Technical Field

[0001] This utility model relates to the field of tower crane attachment construction technology, specifically a reusable tower crane attachment construction device for ultra-long distances. Background Technology

[0002] With the rapid development of urbanization, various high-rise and super high-rise buildings are springing up everywhere. In the construction of high-rise and super high-rise buildings, the placement and selection of tower cranes, as the main vertical transportation tools, is a crucial aspect.

[0003] Existing reusable long-distance tower crane attachment construction devices are typically used in construction of ultra-high-rise buildings with a steel outer frame and reinforced concrete core tube. The construction often employs a "different height synchronous climbing construction" method, where the reinforced concrete core tube structure is constructed before the outer steel frame. Therefore, projects often use luffing jib tower cranes or internal climbing tower cranes. However, these cranes are generally expensive to rent, resulting in high project construction costs. Furthermore, if conventional external tower cranes are used, they need to be attached to the core tube structure over long distances, which conventional attachment rods cannot meet. This necessitates long-distance attachment methods, increasing the cost of repeated processing and installation, significantly reducing construction costs, and also limiting the adaptability of the ultra-long-distance attachment device for external tower cranes. Utility Model Content

[0004] The purpose of this utility model is to provide a reusable, ultra-long-distance tower crane attachment construction device, which solves the problem of ultra-long-distance attachment of tower cranes in high-rise and super high-rise buildings in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A reusable, ultra-long-distance tower crane attachment construction device includes:

[0007] The system comprises two limbs, each with a connecting plate fixedly installed on its periphery and an attachment rod fixedly installed inside each limb. The attachment rods are divided into long and short attachment rods. Because the core tube structure is constructed 6-10 floors faster than the outer frame structure, the tower crane attachment is initially performed using long attachment rods to the core tube structure. Once the outer frame structure has been constructed to the corresponding floor level, short attachment rods are then used to attach them to the outer frame structure columns. Depending on the tower crane's attachment performance, the long attachment rods attached to the core tube structure are then removed accordingly and reused on the upper floors. The short attachment rods are four-limbed lattice column cross-sections with a side length of 350mm. The limb material is 80×8 angle steel, and the tie rod material is 40×4 angle steel, all made of Q345B. The long attachment rods are also four-limbed lattice column cross-sections with a side length of 500mm. The limb material is 100×10 angle steel, and the tie rod material is 50×5 angle steel, all made of Q345B.

[0008] An auxiliary connecting assembly includes connecting rods mounted on the two limbs and slots formed in the connecting rods, wherein a pin is inserted into the slots.

[0009] Preferably, a fixing component is provided between the connecting rod and each of the two segments, and the fixing component includes a weld seam provided between the connecting rod and the two segments, and the connecting rod and the two segments are fixed by welding through the weld seam.

[0010] Preferably, each of the two segments is provided with an auxiliary support assembly, the auxiliary support assembly including two rectangular plates installed inside the two segments and a stabilizing assembly disposed between the two rectangular plates.

[0011] Preferably, the stabilizing component includes a lacing strip installed on the two said limbs, the lacing strip being positioned between the two said rectangular plates to ensure the flexibility and stability of the connection. The lacing strip is fully welded to the limbs and to the limbs themselves, with a weld height of not less than 10mm and free from quality defects such as porosity, slag inclusions, and cracks. The weld bead height between the connecting plate and the limb is 10mm.

[0012] Preferably, each of the two limbs is provided with a disassembly assembly at the end away from the pin. The disassembly assembly includes a channel steel fixedly installed at the end of the attachment rod away from the pin and a rectangular tube sleeved around the channel steel.

[0013] Preferably, the channel steel is provided with an extension assembly on its periphery. The extension assembly includes a tie rod head installed on the periphery of the channel steel and an extension groove opened inside the tie rod head. Both the channel steel and the rectangular square tube are located in the extension groove. An angle steel is fixedly installed at one end of the tie rod head. The tie rod head is made of channel steel welded to the end of the tie rod, and a rectangular square tube spliced ​​from angle steel is provided inside. The tie rod is divided into a long tie rod and a short tie rod. One end of the tie rod is connected to the attachment ear plate on the attachment frame through a pin, and the other end is connected to the building through a connecting plate and pre-embedded bolts. The tie rod head is made of double-splittered 20a channel steel welded to the end of the tie rod, and a rectangular square tube spliced ​​from 180×10 angle steel is inserted inside. The square tube is connected to the attachment ear plate or the attachment frame pin. The length of the tie rod is adjusted by adjusting the length of the rectangular square tube extending into the double-splittered channel steel.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0015] 1. By setting up auxiliary connecting components and fixing components, this utility model can solve the problem of ultra-long attachment of ordinary external tower cranes and realize the reuse of ultra-long attachment rods, reducing the cost of repeated processing and installation, greatly reducing construction costs, and having significant economic and social benefits, thereby increasing the adaptability of ultra-long attachment devices for external tower cranes.

[0016] 2. This utility model, through the setting of detachable components, uses ultra-long attachment rods to attach to the core tube structure, and realizes the reusability of ultra-long attachment rods, effectively ensuring the structural construction of the project. The reusable ultra-long-distance tower crane attachment construction technology has a guiding role for projects of the frame-core tube structure type. The attachment rod structure is reasonably designed and the connection is firm and reliable, ensuring the safety and stability during the construction process. The disassembly and reuse process of the attachment rod is simple and quick, improving construction efficiency and shortening the construction period. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 This is a schematic diagram of the auxiliary connecting component of this utility model;

[0020] Figure 4 This is a cross-sectional view of the disassembly and assembly components of this utility model.

[0021] The components include: 1. limbs; 2. lacing strips; 3. auxiliary connecting components; 4. connecting plates; 5. welds; 6. tie rod heads; 7. angle steel; 8. rectangular tubes; 9. attached tie rods; and 10. channel steel.

[0022] 31. Pin. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please refer to Figure 1 , Figure 2 A reusable long-distance tower crane attachment construction device includes: two limbs 1, each with a connecting plate 4 fixedly installed on its periphery and an attachment tie rod 9 fixedly installed inside each limb 1; each of the two limbs 1 is provided with an auxiliary support assembly, which includes two rectangular plates installed inside the two limbs 1 and a stabilizing assembly disposed between the two rectangular plates; the stabilizing assembly includes a taut strip 2 installed on the two limbs 1, which is located between the two rectangular plates.

[0025] In summary, during use, first, according to the tower crane plan, mark the position of the attachment ear plate on the upper side of the shear wall or structural column. Before sealing the vertical structure, embed the tower crane wall-mounted bolts or sleeves (when using through-wall bolts) into the structure. The deviation of the embedded position should not exceed 50mm. The center line of the bolt hole should be perpendicular to the wall surface. After the concrete is poured, ensure that the shear wall surface at the attachment point is flat, free of concrete residue, and free of obstacles that would hinder the installation of the attachment ear plate. Then, install the attachment ear plate. Tighten the bolts from the middle of the bolt group outwards. Tighten the outer bolts diagonally. After tightening, check that the exposed threads of the bolts are no less than 2. Use double nuts and a flat washer for the connecting bolts to ensure reliable connection without loosening. At the same time, install the two rectangular plates on the two limbs 1, and then install the lacing strip 2 between the two rectangular plates to make the limbs 1 more stable during use and prevent them from shaking.

[0026] Please refer to Figure 1 - Figure 3 The auxiliary connecting component 3 includes a connecting rod installed on the two limbs 1 and a slot opened on the connecting rod, with a pin 31 inserted inside the slot; a fixing component is provided between the connecting rod and the two limbs 1, and the fixing component includes a weld 5 provided between the connecting rod and the two limbs 1, and the connecting rod and the two limbs 1 are fixed by welding through the weld 5.

[0027] During use, a tower crane is used to hoist the attachment rod 9. The lifting and lowering movements of the tower crane hook should be smooth and slow. After the attachment rod 9 is hoisted into place, first fix one end of the rod to the tower body attachment frame. After the tower body verticality is adjusted, adjust the length of the attachment rod 9, and fix the other end of the rod to the attachment ear plate. The attachment rod 9 and the attachment ear plate are connected by a pin 31. To adjust the tower body verticality, first lift a weight of appropriate weight, move the lifting trolley, adjust the front and rear torques, and after reaching the equilibrium position, use a theodolite. Monitor the deviation of the tower body in both directions to ensure that the verticality deviation is controlled within 2‰. Arrange the floor slab lifting points, embedding two lifting points on the floor slab above each long attachment. Hang two 5t manual chain hoists on the embedded lifting points on the floor slab respectively. After reassembling the long attachment tie rods with pins 31, install the upper-level long attachment tie rods according to the installation procedure of attachment tie rod 9. Remove the tie rods and place them on the floor slab. Fix the two manual chain hoist wire ropes and the tower crane hook wire rope to the tie rods respectively. After checking and confirming that the fixing is secure, Remove the pins 31 connecting the attachment tie rod 9 to the attachment frame and attachment ear plate respectively. Manually push the tie rod out of the connection groove between the attachment ear plate and the attachment frame, and then slowly place the tie rod on the floor slab. Disassemble the tie rod within the floor, manually dividing it into 2 or 3 sections, depending on the site conditions. Use the tower crane hook wire rope and manual chain hoist wire rope to transfer the segmented tie rod to the floor slab next to the structure. At this time, fix another wire rope on the tower crane hook to the tie rod, and release the manual chain hoist wire rope on the tie rod. A swaying rope is installed on the tie rod for traction. The tower crane slowly lifts the hook. Once the tie rod is lifted to the floor slab and is in a stable state, the swaying rope is released, and the tie rod is transported to the ground using the tower crane. When transporting the tie rod, the tie rod on the side attached to the ear plate is lifted by a manual chain hoist. A manual trolley is placed under the tie rod. The tie rod is transferred to the edge of the structure by manpower and the outer manual chain hoist. After ensuring that it does not contact the structure and that a certain safety distance is maintained, one of the steel wires of the tower crane is fixed to the tie rod. The inner manual chain hoist is released, and the third step is repeated to transport the tie rod to the ground.

[0028] Please refer to Figure 1 , Figure 2 and Figure 4 Each of the two limbs 1 is provided with a disassembly and assembly assembly at the end away from the pin 31. The disassembly and assembly assembly includes a channel steel 10 fixedly installed at the end of the attached tie rod 9 away from the pin 31 and a rectangular square tube 8 sleeved around the channel steel 10. An extension assembly is provided around the channel steel 10. The extension assembly includes a tie rod head 6 installed around the channel steel 10 and an extension groove opened inside the tie rod head 6. Both the channel steel 10 and the rectangular square tube 8 are located in the extension groove. An angle steel 7 is fixedly installed at one end of the tie rod head 6.

[0029] In use, the channel steel 10 and rectangular square tube 8 are first inserted into the inside of the tie rod head 6 to complete the installation of the channel steel 10 and tie rod head 6. At the same time, the length of the rectangular square tube 8 inserted into the channel steel 10 is adjusted to adjust the length of the attachment tie rod 9. The channel steel 10 facilitates the quick assembly and disassembly of the two branches 1 and enables the use of the attachment rod 9, effectively ensuring the structural construction of the project. The attachment rod 9 has a reasonable structural design and a firm and reliable connection, ensuring safety and stability during construction. The disassembly and turnover process of the attachment tie rod 9 is simple and quick, improving construction efficiency, shortening the construction period, and thus increasing the adaptability of the tower crane attachment construction device.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reusable, ultra-long-distance tower crane attachment construction device, characterized in that, include: Two limbs (1), each of the two limbs (1) is fixedly equipped with a connecting plate (4) on its periphery, and each of the two limbs (1) is fixedly equipped with an attachment rod (9) inside its interior. The auxiliary connecting assembly (3) includes a connecting rod mounted on the two limbs (1) and a slot opened on the connecting rod, wherein a pin (31) is inserted into the slot.

2. The reusable ultra-long-distance tower crane attachment construction device according to claim 1, characterized in that: A fixing component is provided between the connecting rod and the two segments (1). The fixing component includes a weld (5) provided between the connecting rod and the two segments (1). The connecting rod and the two segments (1) are welded and fixed together by the weld (5).

3. The reusable ultra-long-distance tower crane attachment construction device according to claim 1, characterized in that: Each of the two limbs (1) is provided with an auxiliary support assembly, which includes two rectangular plates installed inside the two limbs (1) and a stabilizing assembly disposed between the two rectangular plates.

4. The reusable ultra-long-distance tower crane attachment construction device according to claim 3, characterized in that: The stabilizing component includes a slat (2) mounted on the two said limbs (1) and the slat (2) being positioned between the two said rectangular plates.

5. The reusable ultra-long-distance tower crane attachment construction device according to claim 1, characterized in that: Each of the two limbs (1) is provided with a disassembly assembly at the end away from the pin (31). The disassembly assembly includes a channel steel (10) fixedly installed at the end of the attachment rod (9) away from the pin (31) and a rectangular square tube (8) sleeved around the channel steel (10).

6. The reusable ultra-long-distance tower crane attachment construction device according to claim 5, characterized in that: An extension assembly is provided around the channel steel (10). The extension assembly includes a tie rod head (6) installed around the channel steel (10) and an extension groove opened inside the tie rod head (6). The channel steel (10) and the rectangular square tube (8) are both located in the extension groove. An angle steel (7) is fixedly installed at one end of the tie rod head (6).

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