Tower crane wall-attached part connecting device convenient to disassemble and assemble and construction method of tower crane wall-attached part connecting device

Abstract

The invention discloses a tower crane wall attaching piece connecting device convenient to disassemble and assemble and a construction method thereof, and relates to the field of tower crane wall attaching connection. The mode that the end plates are embedded in the limiting stoppers is adopted, on-site welding is not needed, the problem that the structural columns cannot be welded or no on-site welding condition exists is effectively solved, and the problem that partial welding is still needed in traditional hoop connection is avoided; through reasonable structural design, such as stiffening rib arrangement of the front connecting plate and the back connecting plate, connection of high-strength bolts and fixation of the end plates by the limiters, the tower crane wall-attached part support device is ensured to have relatively high safety and reliability; the connecting device is rapid in installation, easy to disassemble and reusable, implementation of the green construction concept is powerfully promoted, compared with a conventional welding mode, the installation efficiency can be remarkably improved, meanwhile, all parts of the connecting device are prefabricated in a factory and installed in a field assembly mode, the construction efficiency is greatly improved, pollution to a construction site is reduced, and the construction cost is reduced. The green and environment-friendly concept is met.

Description

Technical Field

[0001] The invention relates to the field of tower crane wall attachment connection, and in particular to a tower crane wall attachment connection device which is easy to assemble and disassemble and a construction method thereof. Background Art

[0002] Tower cranes are widely used in various construction projects. When a tower crane is used, when it exceeds a certain height, it is usually necessary to use an attachment device to connect it to the building structure to ensure stability and safety during high-altitude operations and to prevent the tower crane from tilting or collapsing due to wind or other external forces.

[0003] The connection methods between the tower crane attachment device and the building structure mainly include through-wall bolt connection, embedded parts welding connection, steel structure welding connection and hoop connection. The through-wall bolt connection can be applied to cast-in-place concrete structures. It involves drilling holes precisely on the wall and passing bolts through these holes to achieve attachment. The construction process needs to be operated carefully to prevent damage to the steel mesh of the main structure. The embedded parts welding connection requires pre-embedded connecting parts during construction, and then these embedded parts are connected to the tower crane attachment device by welding. The successful implementation of this method depends on careful planning before construction and the correct position of the embedded parts. The welding connection ensures the stability of the tower crane attachment device through high-standard welding technology, strictly controls the welding quality, and thus achieves the reliability of the connection part. The hoop connection method can achieve the connection between the tower crane and the structure without damaging the main structure. However, most of the current hoop connections can avoid welding with the main structure to a certain extent, but welding is still required to connect the hoop plates during the installation of the hoop. There is still a problem of on-site welding operation, which cannot fundamentally solve the engineering needs where the main structure requires non-welding or there are no welding conditions on site.

[0004] In order to effectively adapt to different on-site installation conditions, it is necessary to carry out separate and targeted design and optimization and transformation of the form and composition of the clamp in actual engineering. The present invention is based on the connection concept of the clamp and is mainly suitable for the connection between the tower crane wall attachment and the structural column under the condition that the structural column in the building cannot be welded and the building has no conventional attachment point. A tower crane wall attachment connection device that is easy to disassemble and assemble is proposed, aiming to achieve non-destructive and assembled connection between the wall attachment and the box (rectangular) column, which not only avoids welding on the structural column, but also ensures the convenience, rapidity and reusability of the connection, which is helpful to promote the implementation of the green construction concept. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a tower crane wall attachment connection device and a construction method thereof that are easy to disassemble and assemble, so as to solve the technical problems mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tower crane wall attachment connection device that is easy to disassemble and assemble, comprising a connection device body and a structural column, wherein the connection device body comprises a front connection plate, a back connection plate and an end plate;

[0007] The front connecting plate and the back connecting plate are respectively arranged on both sides of the structural column, and an end plate is arranged between the front connecting plate and the back connecting plate. The lengths of the front connecting plate and the back connecting plate are both greater than the width of the structural column, and the structural column is designed as a rectangular column;

[0008] The outer walls of the front connecting plate and the back connecting plate are both installed with stoppers corresponding to the end plates, and the stoppers are respectively arranged at the outer walls of one side of the front connecting plate and the back connecting plate close to the structural column and at the plate edge away from the structural column, and four groups of stoppers are symmetrically arranged at the four corners of the front connecting plate and the back connecting plate, and the stoppers are U-shaped;

[0009] A high-strength bolt is also provided between the front connecting plate and the back connecting plate, and the front connecting plate and the back connecting plate are connected by the high-strength bolt, and a nut is provided at the end of the high-strength bolt. The outer walls of the front connecting plate and the back connecting plate are provided with bolt holes corresponding to the high-strength bolts, and the outer walls at both ends of the high-strength bolts are provided with threads, but no threads are provided in the middle.

[0010] Furthermore, two groups of ear plates are symmetrically installed on the outer wall of the positive connecting plate away from the structural column, and multiple groups of vertical stiffening ribs connected to the ear plates are installed on the outer wall of the positive connecting plate, and through holes are opened on the ear plates.

[0011] Furthermore, a plurality of groups of horizontal stiffening ribs are installed at equal intervals on the outer wall of the back connection plate away from the structural column, and a group of horizontal stiffening ribs is provided between every two groups of bolt holes.

[0012] The present invention also provides a construction method for a tower crane wall attachment connection device that is easy to assemble and disassemble, and the use process thereof comprises the following steps:

[0013] S1: Place the front connecting plate and the back connecting plate on two opposite sides of the structural column;

[0014] S2: Keep the two end plates horizontal and insert them into the stoppers of the front connecting plate respectively, and then clamp the back connecting plate on the other side of the structural column through the stoppers to the end plates;

[0015] S3: Install high-strength bolts, and then install nuts without tightening them initially. The basic requirement is that the end plate can be stuck in the limiter without falling out. At this point, the initial positioning of the entire connection device is completed;

[0016] S4: moving the connecting device body along the structural column to the target installation position;

[0017] S5: Fine-tune the connecting device body to the accurate position, and then initially tighten the high-strength bolts. The initial tightening torque is 50% of the construction torque. At the same time, take measures to ensure that the connecting parts will not be relatively displaced when the high-strength bolts are finally tightened;

[0018] S6: Final tightening of high-strength bolts, further tightening of the bolts until the preload or torque value specified in the design is reached;

[0019] S7: Tower crane installation, connecting the tower crane wall attachment to the structural column through the connecting device body;

[0020] S8: Check the connection effect;

[0021] S9: After the tower crane is used, the tower crane and the wall attachments are removed as required before the wall attachment connection device can be removed;

[0022] S10: Use tools to loosen the nuts, starting from the middle nut and moving toward both sides in sequence, until the front and back connecting plates are separated from the structural columns, and the end plates on both sides are still stuck in the limiters;

[0023] S11: The connecting device body is moved along the structural column to the operating plane, the nuts are further loosened, and the end plates on both sides are removed from the stoppers;

[0024] S12: Remove the nut, take off the front connecting plate and the back connecting plate, and complete the disassembly of the connecting device body;

[0025] S13: After dismantling, the components of the connection device body and the high-strength bolt pairs are sorted out and properly stored for reuse.

[0026] In summary, the present invention mainly has the following beneficial effects:

[0027] The components of the connection device body in the present invention are prefabricated in the factory and assembled on site, which greatly improves the construction efficiency, reduces the pollution on the construction site, and conforms to the concept of green environmental protection. The present invention adopts the method of engaging the end plate with the stopper, and does not require on-site welding, which effectively solves the problem that the structural column cannot be welded or there is no welding condition on site, and avoids the problem that partial welding is still required in the traditional clamp connection;

[0028] Reasonable structural design, such as the setting of stiffening ribs of the front and back connecting plates, the connection of high-strength bolts, and the fixing of the end plates by the limiters, ensures that the tower crane wall-attached support device has high safety and reliability;

[0029] The connection device is quick to install, easy to disassemble and reusable, which effectively promotes the implementation of the green construction concept. Compared with conventional welding methods, the installation efficiency of the connection device can be increased by more than 50%, and the installation efficiency is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of the connecting device body of the present invention;

[0031] Figure 2 This is a schematic diagram of the three-dimensional structure of the connection device body of the present invention before construction preparation;

[0032] Figure 3 It is a schematic diagram of the three-dimensional structure after the connection device body of the present invention is connected to the structural column;

[0033] Figure 4 It is a schematic diagram of the three-dimensional structure of the positive connecting plate of the present invention;

[0034] Figure 5 It is a schematic diagram of the three-dimensional structure of the back connecting plate of the present invention.

[0035] In the figure: 1. connecting device body; 101. structural column; 2. front connecting plate; 21. back connecting plate; 23. vertical stiffening rib; 24. through hole; 25. horizontal stiffening rib; 3. end plate; 4. ear plate; 5. limiter; 6. high-strength bolt; 7. high-strength bolt; 8. nut. DETAILED DESCRIPTION

[0036] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0037] The following describes an embodiment of the present invention based on its overall structure.

[0038] Embodiment 1

[0039] This embodiment provides a tower crane wall attachment connection device that is easy to disassemble and assemble. Figure 1 - Figure 5 As shown, it includes a connecting device body 1 and a structural column 101, wherein the structural column 101 is designed as a rectangular (box) column;

[0040] Specifically, the connecting device body 1 is mainly composed of four parts: a front connecting plate 2, a back connecting plate 21, an end plate 3 and a high-strength bolt 6;

[0041] It should also be emphasized that the components of the connection device body 1 in this embodiment are prefabricated in the factory, and only need to be assembled and installed as required when used on site, which can greatly improve the construction efficiency, reduce the pollution on the construction site, and ensure that it complies with the green environmental protection concept;

[0042] In this embodiment, the front connecting plate 2 and the back connecting plate 21 are respectively arranged on both sides of the structural column 101, and the front connecting plate 2 and the back connecting plate 21 are connected by multiple groups of high-strength bolts 6, which play a role in transferring the gravity load of the tower crane to the structural column 101. The number and specifications of the high-strength bolts 6 need to be determined by calculation. At the same time, the outer walls of both ends of the high-strength bolts 6 are provided with threads, and the middle part is not provided with threads. In addition, nuts 8 are provided at the ends of the high-strength bolts 6. At the same time, each group of high-strength bolts 6 uses double nuts 8 to prevent loosening.

[0043] Exemplarily, bolt holes 7 corresponding to the multi-layer high-strength bolts 6 are provided on the outer walls of the front connecting plate 2 and the back connecting plate 21, ensuring that the high-strength bolts 6 can be smoothly connected to the front connecting plate 2 and the back connecting plate 21 through the bolt holes 7. At the same time, two groups of ear plates 4 are symmetrically installed on the outer wall of the front connecting plate 2 away from the structural column 101, and through holes 24 are provided on the ear plates 4 for connecting the tower crane to the wall and the connecting device body 1. At the same time, five groups of vertical stiffening ribs 23 connected to the ear plates 4 are installed on the outer wall of the front connecting plate 2. The five groups of stiffening ribs are arranged in three layers, two groups are arranged on the upper and lower ear plates 4, and one group is arranged in the middle of the two groups of ear plates 4;

[0044] Furthermore, the outer wall of the positive connecting plate 2 close to the structural column 101 is provided with a limiter 5, wherein the limiter 5 is provided at the four corners of the positive connecting plate 2, and is used to fit and fix the end plate 3 to the positive connecting plate 2;

[0045] In addition, four sets of stoppers 5 are also provided at four corners of the outer wall of the back connecting plate 21 close to the structural column 101. The number and position of the stoppers 5 on the back connecting plate 21 correspond to those of the upper stoppers 5 on the front connecting plate 2.

[0046] Secondly, multiple groups of horizontal stiffening ribs 25 are installed at equal intervals on the outer wall of the back connection plate 21 away from the structural column 101, and a horizontal stiffening rib 25 is arranged between every two layers of bolt holes 7 to share the stress of the back connection plate.

[0047] In this embodiment, the end plate 3 is engaged and fixed with the front connecting plate 2 and the back connecting plate 21 through the stopper 5, which can enhance the overall stability of the connecting device;

[0048] Specifically, the limiter 5 is designed to be U-shaped. While realizing the embedding of the end plate 3 between the front connecting plate 2 and the back connecting plate 21, it can also limit the vertical and lateral sliding of the end plate 3, thereby realizing a fully assembled connection between the end plate 3 and the front connecting plate 2 and the back connecting plate 21. The limiter 5 is fixed in an embedded manner with the end plate 3, which avoids welding operations at the installation site while ensuring the stability of the support device. It has the obvious advantages of convenient and fast assembly and disassembly, and can realize non-destructive and green construction.

[0049] Embodiment 2

[0050] This embodiment provides a construction method for a tower crane wall attachment connection device that is easy to disassemble and assemble. Figure 1 - Figure 5 As shown, the process includes the following steps:

[0051] S1: Prepare the front connecting plate 2, back connecting plate 21, end plate 3, stopper 5 and high-strength bolts 6 and other components that meet the design requirements, ensure that their specifications and quality meet the standards, check whether the tools required for construction, such as wrenches, are complete and can be used normally, organize construction personnel to conduct technical explanations to make them familiar with the construction process and installation requirements of each component, and place the front connecting plate 2 and the back connecting plate 21 on two opposite sides of the structural column 101 on the construction operation plane, wherein the front connecting plate 2 has an ear plate 4 facing the side of the tower crane wall attachment, and the side without the ear plate 4 is attached to the outer wall of the structural column 101, and the side of the back connecting plate 21 without stiffening ribs is on the opposite side of the structural column 101;

[0052] S2: Attach any one of the front connecting plate 2 and the back connecting plate 21 to the side of the structural column 101 according to the orientation requirements described in S1. First, keep the two end plates 3 on both sides horizontal and insert them into the stoppers 5 of the front connecting plate 2 or the back connecting plate 21 respectively, and try to get close to the front connecting plate 2 or the back connecting plate 21. Then, clamp the front connecting plate 2 or the back connecting plate 21 on the other side of the structural column 101 through the stoppers 5 to the end plates 3.

[0053] S3: After completing S2, immediately install the high-strength bolts 6, and make the high-strength bolts 6 penetrate into the corresponding bolt holes 7 of the front connecting plate 2 and the back connecting plate 21. Install the nuts 8 without initially tightening them, and only tighten the nuts 8 to the vicinity of the connecting plates, so that the front connecting plate 2, the back connecting plate 21 and the structural column 101 are in an unclamped and relaxed state, and the end plate 3 can be stuck in the stopper 5 without falling out as a basic requirement, and the initial positioning of the entire connecting device is completed;

[0054] S4: After the connecting device body 1 is initially in place, the connecting device body 1 is moved along the structural column 101 to the target installation position;

[0055] S5: After reaching the target position, first fine-tune the connection device body 1 to the accurate position, and then initially tighten the high-strength bolt 6, with the initial tightening torque being 50% of the construction torque. At the same time, take measures (such as temporary fixing, etc.) to ensure that the connection parts will not be relatively displaced when the high-strength bolt (6) is finally tightened;

[0056] S6: finally tighten the high-strength bolt 6, and further tighten the bolt until the preload force or torque value specified in the design is reached to ensure that the connecting piece and the structural column 101 are tightly fitted and fixed, and check the firmness of the connection;

[0057] S7: Tower crane installation, the tower crane wall attachment is connected to the structural column 101 through the ear plate 4 on the positive connection plate 2;

[0058] S8: Check the connection effect. After the tower crane wall attachment is installed, observe whether the plate of the connecting device body 1 is deformed and whether the position of the connecting device body 1 is dislocated; check whether the verticality of the tower crane meets the requirements of relevant specifications;

[0059] S9: After the tower crane is used, the tower crane and the wall attachment are removed as required before the wall attachment connection device body 1 can be removed;

[0060] S10: Use a tool to gradually loosen the nuts 8 from the middle to both sides, until the front connecting plate 2 and the back connecting plate 21 are separated from the structural column 101, and the end plates 3 on both sides are still stuck in the stoppers 5;

[0061] S11: The connecting device body 1 is moved as a whole along the structural column 101 to the operating plane, the nuts 8 are further loosened, and the end plates 3 on both sides are removed from the stoppers 5;

[0062] S12: Remove the nut 8, remove the front connecting plate 2 and the back connecting plate 21, and complete the disassembly of the connecting device body 1;

[0063] S13: After being dismantled, the components of the connecting device body 1 and the high-strength bolts 6 are sorted out and properly stored for reuse.

[0064] Although an embodiment of the present invention has been shown and described, this specific embodiment is only an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A tower crane wall attachment connection device that is easy to disassemble and assemble, characterized in that: It comprises a connecting device body (1) and a structural column (101), wherein the connecting device body (1) comprises a front connecting plate (2), a back connecting plate (21) and an end plate (3); The front connecting plate (2) and the back connecting plate (21) are respectively arranged on both sides of the structural column (101), and an end plate (3) is arranged between the front connecting plate (2) and the back connecting plate (21), and the outer walls of the front connecting plate (2) and the back connecting plate (21) are both installed with stoppers (5) corresponding to the end plate (3); A high-strength bolt (6) is also provided between the front connecting plate (2) and the back connecting plate (21), and the front connecting plate (2) and the back connecting plate (21) are connected via the high-strength bolt (6), and a nut (8) is provided at the end of the high-strength bolt (6).

2. The tower crane wall attachment connection device that is easy to assemble and disassemble according to claim 1 is characterized in that: The lengths of the front connecting plate (2) and the back connecting plate (21) are both greater than the width of the structural column (101), and the structural column (101) is designed as a rectangular column.

3. The tower crane wall attachment connection device that is easy to assemble and disassemble according to claim 1 is characterized in that: The outer walls of the front connecting plate (2) and the back connecting plate (21) are both provided with bolt holes (7) corresponding to the high-strength bolts (6), and the outer walls of both ends of the high-strength bolts (6) are provided with threads, while the middle part is not provided with threads.

4. The tower crane wall attachment device that is easy to assemble and disassemble according to claim 1 is characterized in that: Two groups of ear plates (4) are symmetrically installed on the outer wall of the positive connecting plate (2) away from the structural column (101), and multiple groups of vertical stiffening ribs (23) connected to the ear plates (4) are installed on the outer wall of the positive connecting plate (2), and through holes (24) are opened on the ear plates (4).

5. The tower crane wall attachment connection device that is easy to assemble and disassemble according to claim 3 is characterized in that: A plurality of groups of horizontal stiffening ribs (25) are installed at equal intervals on the outer wall of the back connection plate (21) away from the structural column (101), and one group of horizontal stiffening ribs (25) is provided between every two groups of bolt holes (7).

6. The tower crane wall attachment device that is easy to assemble and disassemble according to claim 1, characterized in that: The stoppers (5) are respectively arranged on the outer wall of one side of the front connecting plate (2) and the back connecting plate (21) close to the structural column (101) and away from the plate edge of the structural column (101), and four groups of stoppers (5) are symmetrically arranged at the four corners of the front connecting plate (2) and the back connecting plate (21), and the stoppers (5) are designed to be U-shaped.

7. A construction method for a tower crane wall attachment connection device that is easy to assemble and disassemble, characterized in that The process of using the tower crane wall attachment connection device that is easy to disassemble and assemble as described in any one of claims 1 to 6 includes the following steps: S1: placing the front connecting plate (2) and the back connecting plate (21) on two opposite sides of the structural column (101); S2: The two end plates (3) are kept horizontal and respectively inserted into the stoppers (5) of the front connecting plate (2), and then the back connecting plate (21) on the other side of the structural column (101) is clamped to the end plate (3) through the stoppers (5); S3: Install the high-strength bolts (6), and then install the nuts (8) without tightening them initially. The basic requirement is that the end plate (3) can be stuck in the stopper (5) without falling out. At this point, the initial positioning of the entire connection device is completed; S4: moving the connecting device body (1) along the structural column (101) to a target installation position; S5: fine-adjust the connecting device body (1) to the correct position, and then initially tighten the high-strength bolts (6); S6: Final tightening of the high-strength bolts (6), further tightening the bolts until the preload force or torque value specified in the design is reached; S7: installing the tower crane, connecting the tower crane wall attachment to the structural column (101) via the connecting device body (1); S8: Check the connection effect; S9: After the tower crane is used, the tower crane and the wall attachment are removed as required before the wall attachment connection device body (1) can be removed; S10: Use a tool to loosen the nut (8) until the front connecting plate (2) and the back connecting plate (21) are separated from the structural column (101), and the end plates (3) on both sides are still stuck in the stoppers (5); S11: The connecting device body (1) is moved as a whole along the structural column (101) to the operating plane, the nut (8) is further loosened, and the end plates (3) on both sides are removed from the stoppers (5); S12: Remove the nut (8), take off the front connecting plate (2) and the back connecting plate (21), and complete the removal of the connecting device body (1).

8. The construction method of the tower crane wall attachment device that is easy to assemble and disassemble according to claim 7 is characterized in that: The initial tightening torque of the high-strength bolt (6) in S5 is 50% of the construction torque, and measures are taken to ensure that the connecting parts will not be relatively displaced when the high-strength bolt (6) is finally tightened.

9. The construction method of the tower crane wall attachment device that is easy to assemble and disassemble according to claim 7, characterized in that: In S10, the nuts (8) are loosened gradually from the nut (8) at the middle position to both sides.

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