Segmented overhanging installation device for high-altitude large-span steel beam

Abstract

The utility model discloses a segmented overhanging installation device for a high-altitude large-span steel beam. Relates to the technical field of steel structure construction. The steel beam comprises two segmented steel main beams, the two segmented steel main beams are connected with the two steel reinforced columns correspondingly, the top of the end, close to the steel reinforced columns, of each segmented steel main beam is provided with an upward bracket, and the top of the end, away from the steel reinforced columns, of each segmented steel main beam is provided with an oblique upward bracket; the diagonal member comprises an H-shaped steel beam and a downward steel beam, a first connecting plate is arranged at one end of the H-shaped steel beam and connected with the obliquely-downward bracket, a second connecting plate is arranged at the other end of the H-shaped steel beam and connected with the obliquely-upward bracket, the downward steel beam is arranged at the bottom of the H-shaped steel beam, and a third connecting plate is arranged at the end, away from the H-shaped steel beam, of the downward steel beam and connected with the obliquely-upward bracket. And the third connecting plate is connected with the upward bracket. According to the utility model, the steel beam is segmented, so that the hoisting requirement of the tower crane can be met, and the construction safety is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure construction, and more specifically, to a segmented cantilever installation device for high-altitude large-span steel beams. Background Technique

[0002] The building corridor is located on the 11th - 13th floors. The lower part of the corridor from the 5th to the 11th floors is an open design. The corridor is made of all steel structures, including steel stiffening columns, steel beams, and steel bar truss floor slabs. The total amount of steel structures is about 600 tons. The span of a single steel beam is 25 meters and the weight is 8.1 tons.

[0003] In the prior art, there are mainly three construction methods. One is to use a tower crane for in-situ hoisting at high altitude. However, since the weight of a single steel beam is outside the hoisting range, it is impossible to hoist using a tower crane. The second is to use a large-tonnage truck crane for hoisting. However, due to the main structure of the shopping mall on both the north and south sides, it is impossible to hoist using a large-tonnage truck crane. The third is to set up a full hall scaffold on the fifth floor. However, the erection height is relatively high and the cost is relatively high. This construction method is not economical. Therefore, in order to hoist the steel beam smoothly and safely, and to meet the economic benefits, save costs, and improve work efficiency.

[0004] Therefore, how to provide a segmented cantilever installation device for high-altitude large-span steel beams that can use a tower crane for segmented cantilever installation, does not require additional mechanical and measure costs, and can greatly save costs is an urgent problem to be solved by those skilled in the art. Content of the Utility Model

[0005] In view of this, the utility model provides a segmented cantilever installation device for high-altitude large-span steel beams, which can use a tower crane for segmented cantilever installation, does not require additional mechanical and measure costs, and can greatly save costs.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme:

[0007] A segmented cantilever installation device for high-altitude large-span steel beams, comprising:

[0008] Steel stiffening columns, two of which are symmetrically arranged at intervals. Each steel stiffening column is provided with a steel stiffening column corbel. Below each steel stiffening column corbel, there is an obliquely downward corbel, and below the obliquely downward corbel, there is also the steel stiffening column corbel;

[0009] Steel beam, the steel beam includes a segmented steel main beam and an intermediate steel main beam. There are two segmented steel main beams, and the two segmented steel main beams are respectively connected to the steel column brackets on the two steel columns. Both of the two segmented steel main beams are located below the steel column brackets. Both ends of the segmented steel main beam are provided with steel beam segmentation points. At the top of each segmented steel main beam near one end of the steel column, an upward bracket is provided, and at the top of each segmented steel main beam far from one end of the steel column, an obliquely upward bracket is provided. The two ends of the intermediate steel main beam are respectively connected to the steel beam segmentation points of the two segmented steel main beams;

[0010] Oblique tie rod, there are two oblique tie rods. Each oblique tie rod includes an H-shaped steel beam and a downward steel beam. One end of the H-shaped steel beam is provided with a first connecting plate, and the first connecting plate is connected to the obliquely downward bracket. The other end of the H-shaped steel beam is provided with a second connecting plate, and the second connecting plate is connected to the obliquely upward bracket. The downward steel beam is arranged at the bottom of the H-shaped steel beam. The downward steel beam is close to the first connecting plate. The downward steel beam is hinged to the H-shaped steel beam. One end of the downward steel beam far from the H-shaped steel beam is provided with a third connecting plate, and the third connecting plate is connected to the upward bracket.

[0011] Further, a stiffening plate is provided at the hinged position between the downward steel beam and the H-shaped steel beam.

[0012] Further, it also includes a welding process backing plate. The first connecting plate, the second connecting plate and the two ends of the H-shaped steel beam are connected through the welding process backing plate, and the third connecting plate and the downward steel beam are also connected through the welding process backing plate.

[0013] Further, it also includes lifting lugs. Two lifting lugs are arranged at intervals on the top of each H-shaped steel beam, and two lifting lugs are arranged at intervals on the top of each obliquely upward bracket.

[0014] Further, a plurality of high-strength bolts are provided on each of the first connecting plate, the second connecting plate and the third connecting plate.

[0015] Through the above technical solutions, compared with the prior art, the utility model discloses a device for segmented cantilever installation of high-altitude long-span steel beams. By connecting the segmented steel main beam with the steel column, the cantilever length of the segmented steel main beam is reduced, and a stable system is formed, which can be applicable to the construction process of segmented cantilever installation of high-altitude long-span steel beams; the installation and disassembly of the oblique tie rod device are convenient, the operability is strong and the danger is small; it can be applicable to the working conditions where temporary support scaffolds, full hall support scaffolds and large-tonnage truck cranes cannot be set, and the oblique tie rod can be recycled after cutting, with high economic benefits and low costs. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on the provided drawings.

[0017] Figure 1 Structural schematic diagram of the diagonal tie rod provided by the present invention;

[0018] Figure 2 Structural schematic diagram of an installation device for segmental cantilever installation of a high-altitude long-span steel beam provided by the present invention;

[0019] Figure 3 Structural schematic diagram of the segmented steel main beam provided by the present invention;

[0020] Figure 4 Structural schematic diagram of the steel pipe column provided by the present invention.

[0021] Wherein: 1 is the steel pipe column; 2 is the steel pipe column bracket; 3 is the downward inclined bracket; 4 is the segmented steel main beam; 5 is the middle steel main beam; 6 is the steel beam segmentation point; 7 is the upward bracket; 8 is the upward inclined bracket; 9 is the diagonal tie rod; 10 is the H-shaped steel beam; 11 is the downward steel beam; 12 is the first connecting plate; 13 is the second connecting plate; 14 is the triple connecting plate; 15 is the stiffening plate; 16 is the welding process backing plate; 17 is the lifting lug; 18 is the high-strength bolt. Detailed implementation manners

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0023] See Figures 1-4 , an installation device for segmental cantilever installation of a high-altitude long-span steel beam disclosed in the embodiments of the present invention includes:

[0024] Steel pipe columns 1, two steel pipe columns 1 are symmetrically arranged at intervals, a steel pipe column bracket 2 is provided on each steel pipe column 1, a downward inclined bracket 3 is provided below each steel pipe column bracket 2, and a steel pipe column bracket 2 is further provided below the downward inclined bracket 3;

[0025] Steel beam, the steel beam includes a segmented steel main beam 4 and an intermediate steel main beam 5. There are two segmented steel main beams 4, and the two segmented steel main beams 4 are respectively connected to the steel column brackets 2 on the two steel columns 1. The two segmented steel main beams 4 are both located below the steel column brackets 2. Both ends of the segmented steel main beam 4 are provided with steel beam segmentation points 6. At the top of each segmented steel main beam 4 near one end of the steel column 1, an upward bracket 7 is provided, and at the top of each segmented steel main beam 4 far from one end of the steel column 1, an obliquely upward bracket 8 is provided. The two ends of the intermediate steel main beam 5 are respectively connected to the steel beam segmentation points 6 of the two segmented steel main beams 4; by segmenting the steel beam, the lifting weight requirement of the tower crane can be met. At the same time, a high-altitude large-span steel beam segmented cantilever device is set up to reduce the cantilever distance of the steel beam, which can meet the requirements of segmented cantilever installation of the steel beam and ensure construction safety. This device can be applied to the construction technology of segmented cantilever installation of large-span steel beams in high altitude for steel structures;

[0026] Oblique tie rod 9, there are two oblique tie rods 9. Each oblique tie rod 9 includes an H-shaped steel beam 10 and a downward steel beam 11. One end of the H-shaped steel beam 10 is provided with a first connecting plate 12, and the first connecting plate 12 is connected to the obliquely downward bracket 3. The other end of the H-shaped steel beam 10 is provided with a second connecting plate 13, and the second connecting plate 13 is connected to the obliquely upward bracket 8. The downward steel beam 11 is arranged at the bottom of the H-shaped steel beam 10, and the downward steel beam 11 is close to the first connecting plate 12. The downward steel beam 11 is hinged to the H-shaped steel beam 10. One end of the downward steel beam 11 far from the H-shaped steel beam 10 is provided with a third connecting plate 14, and the third connecting plate 14 is connected to the upward bracket 7; the installation and disassembly of the oblique tie rod 9 device are convenient, the operability is strong and the danger is small; the oblique tie rod 9, the steel beam and the steel column 1 form a stable triangular system.

[0027] In this embodiment, a stiffening plate 15 is provided at the hinged position of the downward steel beam 11 and the H-shaped steel beam 10.

[0028] In this embodiment, a welding process backing plate 16 is further included. The first connecting plate 12, the second connecting plate 13 and the two ends of the H-shaped steel beam 10 are connected through the welding process backing plate 16, and the third connecting plate 14 and the downward steel beam 11 are also connected through the welding process backing plate 16; the installation stability is improved.

[0029] In this embodiment, a lifting lug 17 is further included. Two lifting lugs 17 are arranged at intervals on the top of each H-shaped steel beam 10, and two lifting lugs 17 are arranged at intervals on the top of each obliquely upward bracket 8.

[0030] In this embodiment, a plurality of high-strength bolts 18 are provided on each of the first connecting plate 12, the second connecting plate 13 and the third connecting plate 14; through the high-strength bolts 18, the first connecting plate 12 is hinged to the obliquely downward bracket 3, the second connecting plate 13 is hinged to the obliquely upward bracket 8, and the third connecting plate 14 is hinged to the upward bracket 7.

[0031] Specific usage process

[0032] During the construction of the main structure, a downward-inclined bracket 3 is set at the upper end of the steel column 1. After the main structure is capped, the construction of the steel link corridor is carried out. Upward brackets 7 and obliquely upward brackets 8 are set at the top of the segmented steel main beam 4. Then, when hoisting the segmented steel main beam 4, the diagonal tie rod 9 is pre-connected to the segmented steel main beam 4. Then, the segmented steel main beam 4 is hoisted by a tower crane. Then, the first connecting plate 12 of the diagonal tie rod 9 is fixed and welded to the downward-inclined bracket 3 of the steel column 1 through high-strength bolts 18 to complete the installation of the link corridor segmented steel beam. Then, the intermediate steel main beam 5 is installed;

[0033] During construction, first connect the diagonal tie rod 9 to the segmented steel main beam 4 on the ground, and then hoist it together with the segmented steel main beam 4. After the segmented steel main beam 4 is in place, temporarily fix the segmented steel main beam 4, then align the segmented steel main beam 4, and then fix the first connecting plate 12 of the diagonal tie rod 9 to the downward-inclined bracket 3 of the steel column 1 through high-strength bolts 18 to form a safety system. Then, remove the tower crane hook, connect the second connecting plate 13 to the obliquely upward bracket 8 through high-strength bolts 18, connect the third connecting plate 14 to the upward bracket 7 through high-strength bolts 18, and connect the two ends of the intermediate steel main beam 5 to the two segmented steel main beams 4 respectively.

[0034] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other. For the device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple. For the relevant parts, refer to the description in the method part.

[0035] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for installing high-altitude large-span steel beams in sections, characterized in that: include: Steel column, two of the steel columns are symmetrically arranged at intervals, each of the steel columns is provided with a steel column corbel, each of the steel column corbels is provided with a downwardly inclined corbel below, and the steel column corbel is further provided below the downwardly inclined corbel; A steel beam, wherein the steel beam comprises a segmented steel main beam and an intermediate steel main beam, wherein two segmented steel main beams are provided, and the two segmented steel main beams are respectively connected to the steel column corbels on the two steel column, and the two segmented steel main beams are both located below the steel column corbels, and both ends of the segmented steel main beams are provided with steel beam segmentation points, and the top of each segmented steel main beam close to one end of the steel column is provided with an upward corbel, and the top of each segmented steel main beam away from one end of the steel column is provided with an oblique upward corbel, and both ends of the intermediate steel main beam are respectively connected to the steel beam segmentation points of the two segmented steel main beams; A diagonal tie rod, wherein two diagonal tie rods are provided, each of the diagonal tie rods comprises an H-shaped steel beam and a downward steel beam, a first connecting plate is provided at one end of the H-shaped steel beam, the first connecting plate is connected to the diagonal downward corbel, a second connecting plate is provided at the other end of the H-shaped steel beam, the second connecting plate is connected to the diagonal upward corbel, the downward steel beam is provided at the bottom of the H-shaped steel beam, the downward steel beam is close to the first connecting plate, the downward steel beam is hinged to the H-shaped steel beam, a third connecting plate is provided at one end of the downward steel beam away from the H-shaped steel beam, and the third connecting plate is connected to the upward corbel.

2. The device for installing high-altitude large-span steel beams in sections according to claim 1 is characterized in that: A stiffening plate is provided at the hinged position between the downward steel beam and the H-shaped steel beam.

3. The device for installing high-altitude large-span steel beams in sections according to claim 1 is characterized in that: It also includes a welding process pad, through which the first connecting plate, the second connecting plate and the two ends of the H-shaped steel beam are connected, and the third connecting plate and the downward steel beam are also connected.

4. The device for installing high-altitude large-span steel beams in sections according to claim 1 is characterized in that: It also includes lifting ears, two of which are arranged at intervals on the top of each H-shaped steel beam, and two of which are arranged at intervals on the top of each inclined upward corbel.

5. The device for installing high-altitude large-span steel beams in sections according to claim 1 is characterized in that: Each of the first connecting plate, the second connecting plate and the third connecting plate is provided with a plurality of high-strength bolts.

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