A Construction Method for Installing and Dismantling the Climbing Beam and Corbels of an Inclined Tower Crane in a Super High-Rise Building

Abstract

The present invention discloses a construction method for installing and dismantling the climbing beam and bracket of an ultra-high-rise internal climbing tower crane, which relates to the technical field of internal climbing tower crane climbing technology. The technical solution is that every time the tower crane climbs, the climbing formwork can be used as an operation platform to weld the third bracket. A standardized operation platform is hung on the standard section of the tower crane and can be unfolded or retracted when work is needed. Moreover, the bottom support platform is used as an operation platform to dismantle the first climbing beam and bracket, which speeds up the turnover of the climbing beam and bracket, and overall speeds up the construction speed and reduces the safety risk coefficient. The beneficial effect of the present invention is that this solution provides a construction method for installing and dismantling the climbing beam and bracket of an ultra-high-rise internal climbing tower crane, studies the spatial relationship between the ultra-high-rise luffing tower crane and the climbing formwork, and realizes the installation and welding of the bracket on the climbing formwork hanging platform through reasonable optimization of the climbing formwork system.

Description

Technical Field

[0001] The invention relates to the technical field of inner climbing tower crane climbing, and in particular to a climbing beam and bracket installation and disassembly construction method of a super high-rise inner climbing tower crane. Background Art

[0002] The boom tower crane is the main vertical transportation tool for super high-rise building construction and is playing an important role. The application of boom tower crane is also one of the core technologies for super high-rise on-site construction.

[0003] The climbing of the boom tower crane is mainly achieved through devices such as the tower crane corbel, climbing beam and climbing frame. Since the boom tower crane is located inside the elevator shaft and super-high-rise tower crane is often constructed together with climbing formwork, when the tower crane corbel and climbing beam are installed on site, a temporary steel pipe operating platform is often overlapped from the inside of the standard section to the outside.

[0004] Since the construction is carried out in a confined space at high altitude, the installation of a temporary operating platform is very dangerous, the construction speed is slow, and the operating frame needs to be dismantled before climbing. Therefore, the temporary operating platform needs to be repeatedly installed and dismantled during the entire climbing process of the inner climbing tower crane, which increases the climbing cycle of the tower crane and the construction risk factor. At the same time, as the tower crane gradually climbs, the tower crane bull legs are difficult to dismantle, and often need to be gradually dismantled during the construction of the lower horizontal structure. This construction method requires the configuration of multiple sets of bull legs according to the number of climbs during the tower crane construction process. In addition, due to the heavy weight of the bull legs, the later dismantling and transportation are also difficult. Summary of the invention

[0005] In order to achieve the above-mentioned purpose of the invention and to address the above-mentioned technical problems, the present invention provides a method for installing and disassembling a climbing beam and a bracket of a super-high-rise internal climbing tower crane.

[0006] The technical solution includes the following steps:

[0007] S1. Modify the climbing formwork and adjust the position of the climbing formwork keel to avoid collision with the corbel when the climbing formwork is climbing. At the same time, provide operating space for corbel welding and weld the corbel on the climbing formwork;

[0008] S2, setting the positions of three climbing beams, climbing the climbing formwork, and hanging standardized operating platforms for the installation of climbing beams and the climbing of tower cranes on the standard sections of the tower cranes below the positions of the three climbing beams, with a total of three layers of standardized operating platforms; the standardized platforms are foldable;

[0009] S3. Install the third climbing beam and support frame on the third-layer standardized operating platform, and set the climbing frame at the position of the first climbing beam;

[0010] S4. Use the first and second standardized operating platforms to dismantle the climbing frame at the first climbing beam position and install it at the second climbing beam position;

[0011] S5. Erect a temporary climbing operation platform above the second climbing beam. The temporary operation platform is not connected to the tower crane and provides an operation platform for the operating workers during the climbing of the tower crane.

[0012] S6. Fold up and retract the standardized operation platforms of the first, second, and third floors.

[0013] S7. Carry out the tower crane climbing operation, and the standardized operation platforms climb along with the tower crane.

[0014] S8. Install a bottom supporting platform under the tower crane to provide an operation platform for the later removal of the corbels and can also serve as a protective platform at the bottom of the tower crane.

[0015] S9. Use the bottom supporting platform to remove the first climbing beam and the corbels, and reuse the first climbing beam and the corbels as the fourth cycle. At the same time, the bottom supporting platform can be used as the protection at the bottom of the tower crane, which can effectively prevent the risk of high-altitude falling objects in the gap between the tower crane and the climbing formwork, thus ensuring the safe construction operation below the bottom supporting platform.

[0016] In the step S1, grooves corresponding to the corbels are provided on the keels on the side of the climbing formwork close to the structural wall.

[0017] In the step S2, the standardized operation platform includes sliding rail hanging rods symmetrically arranged on the side walls of the tower crane standard sections. One side of the sliding rail hanging rods is provided with a railing unit, the bottom of the railing unit is provided with a platform unit, and vertical sliding grooves are provided on the outer side walls of the sliding rail hanging rods.

[0018] The railing unit includes two horizontally arranged cross bars and two diagonal bars symmetrically arranged. The bottom of the diagonal bar is hinged to the sliding groove, the top of the diagonal bar is hinged to one end of the cross bar, the other end of the cross bar is slidably connected to the sliding groove, and a connecting rod is hinged between the two connection points of the cross bar and the diagonal bar.

[0019] A connecting seat is provided at the bottom of the sliding rail hanging rod. The platform unit includes two horizontal support rods, and several longitudinal support rods are arranged between the two horizontal support rods. One ends of the two horizontal support rods are respectively hinged to the connecting seat.

[0020] In the step S8, the bottom of the climbing beam at the bottom of the tower crane is fixedly connected to the bottom supporting platform through a steel wire rope. Workers can enter the bottom supporting platform from the outer frame floor slab.

[0021] In the initial state, the climbing frame is arranged at the position of the first climbing beam. After the step S4, the climbing frames are all arranged at the positions of the second climbing beams.

[0022] A storage room for the standardized operating platform is arranged inside the tower crane standard section, which can avoid the tedious process of repeatedly setting up and dismantling the operating frame.

[0023] Each time the tower crane climbs, the climbing formwork can be used as an operating platform to weld the third corbel, and a standardized operating platform can be hung on the standard section of the tower crane. It can be unfolded or folded when work is needed, and the bottom platform can be used as an operating platform to dismantle the first climbing beam and corbel, which speeds up the turnover of the climbing beam and corbel, speeds up the overall construction speed and reduces the safety risk factor.

[0024] The project uses an STL420 boom tower crane, which cooperates with the climbing formwork during the climbing process. In addition, it uses a standardized operating platform and a bottom platform for welding and disassembling the corbels, which effectively reduces the difficulty of construction.

[0025] The technical solution provided by the embodiment of the present invention has the following beneficial effects: the solution aims at the difficulties in the installation and removal of climbing beams and brackets during the climbing process of traditional super-high-rise internal climbing tower cranes, develops a construction method for the installation and removal of climbing beams and brackets of super-high-rise internal climbing tower cranes, studies the spatial relationship between super-high-rise boom tower cranes and climbing formworks, and realizes the installation and welding of brackets on the climbing formwork crane platform through reasonable optimization of the climbing formwork system, which can improve the installation and removal efficiency of the climbing beams and brackets of super-high-rise internal climbing tower cranes; installs a standardized operating platform on the standard section of the tower crane, which can be used for the installation of climbing beams and the climbing of the tower crane, avoiding repetitive erection and removal work;

[0026] A standardized operating platform for the installation of climbing beams and the climbing of the tower crane is set up at the standard section of the tower crane, and a reasonable space is arranged inside the standard section as a storage room for the standardized operating platform to avoid the tedious process of repeatedly setting up and dismantling the operating frame;

[0027] A climbing supporting platform is installed at the bottom of the lowest climbing beam of the tower crane. After the tower crane climbs, the supporting platform can be used as an operating platform to dismantle the first climbing beam and corbel of the tower crane, thereby realizing the recycling of the climbing beam and corbel. At the same time, the supporting platform can serve as protection for the bottom of the tower crane, which can effectively prevent the risk of falling objects from high altitude in the gap between the tower crane and the climbing formwork, thereby ensuring that construction work can be carried out safely under the supporting platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Schematic diagram of step S1 of an embodiment of the present invention.

[0029] Figure 2 Schematic diagram of step S2 of an embodiment of the present invention.

[0030] Figure 3 Schematic diagram of step S3 of an embodiment of the present invention.

[0031] Figure 4Schematic diagram of step S4 of an embodiment of the present invention.

[0032] Figure 5 Schematic diagram of step S5 of an embodiment of the present invention.

[0033] Figure 6 Schematic diagram of step S6 of an embodiment of the present invention.

[0034] Figure 7 Schematic diagram of step S7 of an embodiment of the present invention.

[0035] Figure 8 Schematic diagram of step S8 of an embodiment of the present invention.

[0036] Figure 9 It is a schematic diagram of the structure of the embodiment of the present invention before the climbing formwork is dismantled and modified (the tower crane bracket cannot be welded on the climbing formwork platform).

[0037] Figure 10 It is a schematic diagram of the structure of the climbing formwork after dismantling and modification (tower crane brackets can be welded on the climbing formwork platform) according to an embodiment of the present invention.

[0038] Figure 11 The present invention is a schematic diagram of the use status of a standardized operating platform for tower crane bracket welding.

[0039] Figure 12 The present invention is a schematic diagram of a folded state of a standardized operating platform for tower crane corbel welding.

[0040] Figure 13 It is a structural schematic diagram of the bottom platform of the tower climbing crane in an embodiment of the present invention.

[0041] The reference numerals are: 1. climbing formwork; 2. bracket; 3. climbing beam; 4. tower crane; 5. standardized operating platform; 6. support frame; 7. temporary operating platform; 8. bottom platform; 9. climbing frame; 10. wire rope;

[0042] 501, slide rail hanging rod; 502, railing unit; 503, platform unit. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. Of course, the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0044] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0045] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "a plurality" is two or more.

[0046] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0047] Embodiment 1

[0048] See Figures 1 to 13 , the present invention provides a construction method for installing and disassembling the climbing beam and bracket of a super high-rise internal climbing tower crane, including the following steps:

[0049] S1. Modify the climbing formwork 1, adjust the position of the keel of the climbing formwork 1 to avoid collision with the bracket 2 when the climbing formwork 1 climbs, and at the same time provide an operating space for welding the bracket 2, and weld the bracket 2 on the climbing formwork 1;

[0050] S2. Set the positions of the three climbing beams 3. The climbing formwork 1 climbs, and a standardized operating platform 5 for installing the climbing beam 3 and climbing the tower crane 4 is hung on the standard section of the tower crane 4 below the positions of the three climbing beams 3 respectively, and a total of three layers of standardized operating platforms 5 are set; the standardized platform 5 is foldable;

[0051] S3. Install the third climbing beam 3 and the support frame 6 on the third layer of standardized operating platform 5, and set a climbing frame 9 at the position of the first climbing beam 3;

[0052] S4. Use the first and second layers of standardized operating platforms 5 to disassemble the climbing frame 9 at the position of the first climbing beam 3 and install it at the position of the second climbing beam 3;

[0053] S5. Erect a temporary climbing operation platform 7 above the second climbing beam 3. The temporary operation platform 7 is not connected to the tower crane 4 and provides an operation platform for the operating workers during the climbing of the tower crane 4.

[0054] S6. Fold up and retract the standardized operation platforms 5 of the first, second, and third floors.

[0055] S7. Carry out the tower crane climbing operation, and the standardized operation platform 5 climbs along with the tower crane 4.

[0056] S8. Install a bottom support platform 8 below the tower crane 4 to provide an operation platform for the later removal of the corbel 2 and can also be used as a bottom protection platform for the tower crane 4.

[0057] S9. Use the bottom support platform 8 to remove the first climbing beam 3 and the corbel 2, and reuse the first climbing beam 3 and the corbel 2 as the fourth cycle. At the same time, the bottom support platform 8 can be used as the protection at the bottom of the tower crane, which can effectively prevent the risk of high-altitude falling objects in the gap between the tower crane and the climbing formwork, thus ensuring the safe construction operation below the bottom support platform 8.

[0058] In step S1, a groove corresponding to the corbel 2 is provided on the keel on the side of the climbing formwork 1 close to the structural wall.

[0059] In step S2, the standardized operation platform 5 includes slide rail hanging rods 501 symmetrically arranged on the side walls of the standard sections of the tower crane 4. One side of the slide rail hanging rod 501 is provided with a railing unit 502. The bottom of the railing unit 502 is provided with a platform unit 503. Vertical sliding grooves are provided on the outer side walls of the slide rail hanging rods 501.

[0060] The railing unit 502 includes two symmetrically arranged horizontal bars and two inclined bars. The bottom of the inclined bar is hinged to the sliding groove. The top of the inclined bar is hinged to one end of the horizontal bar. The other end of the horizontal bar is slidably connected to the sliding groove. A connecting rod is hinged between the two connection points of the horizontal bar and the inclined bar.

[0061] A connecting seat is provided at the bottom of the slide rail hanging rod 501. The platform unit 503 includes two horizontal support rods. A number of longitudinal support rods are arranged between the two horizontal support rods. One ends of the two horizontal support rods are respectively hinged to the connecting seat.

[0062] In step S8, the bottom of the bottommost climbing beam 3 of the tower crane 4 is fixedly connected to the bottom support platform 8 through a steel wire rope 10. Workers can enter the bottom support platform from the outer frame floor slab.

[0063] In the initial state, a climbing frame 9 is arranged at the position of the first climbing beam 3. After step S4, the climbing frame 9 is arranged at the position of the second climbing beam 3.

[0064] Inside the 4 standard tower crane sections, a storage room for the standardized operation platform 5 is provided. The storage room can avoid the cumbersome procedures of repeatedly erecting and dismantling the operation scaffolds.

[0065] However, the existing construction method is as follows:

[0066] The climbing formwork climbs to create space for installing the corbels of the third climbing beam;

[0067] Temporary steel pipe operation platforms are erected on the tower crane standard sections below the three climbing beams respectively;

[0068] On the third - layer temporary steel pipe operation platform, corbels are welded, climbing beams are installed, and support frames are installed;

[0069] Using the first and second - layer temporary steel pipe operation platforms, the climbing frame at the position of the first climbing beam is disassembled and installed at the position of the second climbing beam;

[0070] A climbing temporary operation platform is erected above the second climbing beam. This temporary operation platform is not connected to the tower crane and provides an operation platform for the operating workers when the tower crane climbs;

[0071] The first, second, and third - layer temporary steel pipe operation platforms are removed to avoid affecting the climbing of the tower crane. At this time, the climbing temporary operation platform is not removed;

[0072] Carry out the tower crane jacking operation;

[0073] Erect a temporary passage or hang a hanging basket;

[0074] Generally, the construction speed of the core - tube structure is ahead of that of the outer - frame structure. If the tower crane is inside the elevator shaft, it is necessary to wait until the outer - frame floor is constructed above and then hang a hanging basket from above to remove the corbels and climbing beams; or when the elevator shaft meets the conditions for erecting an operation platform, wait until the outer - frame floor is constructed to this floor and then erect a temporary passage in the elevator shaft to remove the corbels and climbing beams. Both of the above situations will lead to an increase in the input of corbels and climbing beams;

[0075] Use the temporary passage or the hanging basket to remove the first - layer corbels and climbing beams;

[0076] Every time the tower crane climbs, it is necessary to repeatedly erect and dismantle the temporary steel pipe operation platforms on the tower crane, and the climbing beams and corbels have slow turnover and large input;

[0077] However, the construction method of this application is that every time the tower crane 4 climbs, the climbing form 1 can be used as an operation platform to weld the third - layer corbels 2. The standardized operation platform 5 is hung on the tower crane standard section of the tower crane 4 and can be unfolded or retracted when needed. And the bottom - support platform 8 is used as an operation platform to remove the first - layer climbing beam 3 and corbels 2, which speeds up the turnover of the climbing beam 3 and corbels 2, and overall speeds up the construction speed and reduces the safety risk coefficient.

[0078] The project uses an STL420 luffing jib tower crane, which cooperates with the climbing formwork 1 during the climbing process. In addition, a standardized operation platform 5 and a bottom platform 8 are used to weld and disassemble the corbel 2, effectively reducing the construction difficulty.

[0079] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A construction method for the installation and disassembly of the climbing beam and bracket of an in-situ climbing tower crane in a super high-rise building, characterized in that, It includes the following steps: S1. Modify the climbing formwork (1), adjust the position of the keel of the climbing formwork (1) to avoid collision with the corbel (2) when the climbing formwork (1) climbs, and at the same time provide an operating space for welding the corbel (2), and weld the corbel (2) on the climbing formwork (1); S2. Set the positions of the three climbing beams (3). The climbing formwork (1) climbs, and a standardized operating platform (5) for installing the climbing beam (3) and climbing the tower crane (4) is hung on the standard section of the tower crane (4) below the positions of the three climbing beams (3) respectively. A total of three layers of standardized operating platforms (5) are set; S3. Install the third climbing beam (3) and the support frame (6) on the third-layer standardized operating platform (5), and set a climbing frame (9) at the position of the first climbing beam (3); S4. Use the first and second layers of standardized operating platforms (5) to disassemble the climbing frame (9) at the position of the first climbing beam (3) and install it at the position of the second climbing beam (3); S5. Build a temporary climbing operating platform (7) above the second climbing beam (3). The temporary operating platform (7) is not connected to the tower crane (4) and provides an operating platform for the operating workers when the tower crane (4) climbs; S6. Fold up and store the first, second, and third layers of standardized operating platforms (5); S7. Carry out the tower crane climbing operation, and the standardized operating platform (5) climbs with the tower crane (4); S8. Install a bottom platform (8) below the tower crane (4) to provide an operating platform for later removal of the corbel (2) and at the same time serve as a bottom protection platform for the tower crane (4); S9. Use the bottom platform (8) to remove the first climbing beam (3) and the corbel (2), and reuse the first climbing beam (3) and the corbel (2) as the fourth cycle; 2. The climbing beam and bracket installation and disassembly construction method of the super high-rise internal climbing tower crane according to claim 1, characterized in that, In the step S1, a groove corresponding to the corbel (2) is provided on the keel on the side of the climbing formwork (1) close to the structural wall; 3. The climbing beam and bracket installation and removal construction method of the super high-rise internal climbing tower crane according to claim 1, characterized in that, In the step S2, each of the three layers of standardized operating platforms (5) includes slide rail hanging rods (501) symmetrically arranged on the side wall of the standard section of the tower crane (4). A railing unit (502) is arranged on one side of the slide rail hanging rod (501). A platform unit (503) is arranged at the bottom of the railing unit (502). Vertical sliding grooves are arranged on the outer side wall of the slide rail hanging rod (501); 4. The climbing beam and bracket installation and disassembly construction method of the super high-rise internal climbing tower crane according to claim 3, characterized in that, The railing unit (502) includes two horizontally arranged cross bars and two inclined bars symmetrically arranged. The bottom of the inclined bar is hinged to the sliding groove. The top of the inclined bar is hinged to one end of the cross bar. The other end of the cross bar is slidably connected to the sliding groove. A connecting rod is hinged between the two connection points of the cross bar and the inclined bar; 5. The climbing beam and bracket installation and disassembly construction method of the super high-rise internal climbing tower crane according to claim 3, characterized in that, A connecting seat is arranged at the bottom of the slide rail hanging rod (501). The platform unit (503) includes two horizontal support bars. A plurality of longitudinal support bars are arranged between the two horizontal support bars. One ends of the two horizontal support bars are respectively hinged to the connecting seat; 6. The climbing beam and bracket installation and removal construction method of the super high-rise internal climbing tower crane according to claim 1, characterized in that In the step S8, the bottom of the first climbing beam (3) at the bottom of the tower crane (4) is fixedly connected to the bottom platform (8) through a steel wire rope (10); 7. The climbing beam and bracket installation and removal construction method of the super high-rise internal climbing tower crane according to claim 1, characterized in that, In the initial state, the climbing frame (9) is arranged at the position of the first climbing beam (3), and after the step S4, the climbing frame (9) is arranged at the position of the second climbing beam (3).

8. The climbing beam and bracket installation and disassembly construction method of the super high-rise internal climbing tower crane according to claim 1, characterized in that, Inside the standard section of the tower crane (4), there is a storage room for three layers of the standardized operation platforms (5).

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