Overhanging steel truss girder overhanging device
Through the design of the cantilever device, the use of steel wire ropes and lifting lugs, combined with reinforcement rings and diagonal columns, the problem of hoisting cantilever steel truss beams in complex environments was solved, and efficient and low-cost installation and construction were achieved.
Patent Information
- Application Number
- CN202422763494.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-11-12
AI Technical Summary
Existing technologies make it difficult to hoist cantilever steel truss beams in complex construction environments, especially in areas with limited space or restricted by vehicles, basements, etc., where the installation and construction of cantilever steel truss beams cannot be completed.
A cantilever device is used, including a first lifting eye, a second lifting eye, a wire rope and a hand hoist. The cantilever steel truss beam is hoisted by fixed connection of the wire rope and the lifting eye and tensioning of the hand hoist, and the structural stability and tensile performance are improved by reinforcement rings, reinforcement plates, diagonal columns and diagonal bracing columns.
The efficient installation and disassembly of cantilevered steel truss beams in complex environments reduces construction difficulty and cost, improves construction efficiency, and enhances the stability and tensile performance of the structure.
Smart Images
Figure CN223330101U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of installation and construction of cantilevered steel truss beams, and in particular to a cantilevering device for cantilevered steel truss beams. Background Art
[0002] Cantilever steel truss beam is the truss beam connecting the two parts of the building. Figure 1 It can be regarded as the main steel frame part of the corridor structure between the two parts of the building. At present, the construction of cantilevered steel truss beams mainly uses tower cranes or car cranes for hoisting, and then the two ends of the cantilevered steel truss beams are respectively fixed on the two parts of the building, and then a supporting formwork is set up on the cantilevered steel truss beams, and then concrete is poured. After the concrete solidifies, a corridor structure is formed. However, in some areas with more complex construction environments, where vehicles are affected by the basement, the weight of steel components and the limitations of the working environment, they cannot complete the hoisting operation. Based on this, a cantilever device has been developed that can cantilever the cantilevered steel truss beams without the need for a tower crane or car crane. Summary of the Invention
[0003] In order to cantilever the cantilever steel truss beam, the present application provides a cantilever steel truss beam cantilever device, which can cantilever the cantilever steel truss beam by using the cantilever device, thereby reducing the requirements of the cantilever steel truss beam on the working environment. Even in a small space, the installation and erection of the cantilever steel truss beam, as well as the subsequent formwork support and concrete pouring can be completed. It is not only no longer restricted by the working environment, but also has a simple and practical structure, is easy to install and disassemble, has low cost and high efficiency.
[0004] This application provides a cantilever steel truss beam cantilever device, which adopts the following technical solution:
[0005] A cantilever device for a cantilevered steel truss beam, comprising:
[0006] The first lifting lug is fixed to the upper end of the cantilevered steel truss beam;
[0007] The second lifting lug is fixed to the side end of the steel column of the building;
[0008] a first steel wire rope, one end of which is fixedly connected to the first lifting eye and the other end of which is a free end;
[0009] a second steel wire rope, one end of which is fixedly connected to the second lifting eye and the other end of which is a free end; and
[0010] The hand chain hoist has two ends fixedly connected to the free end of the first steel wire rope and the free end of the second steel wire rope respectively, and is used to tighten the first steel wire rope and the second steel wire rope.
[0011] Preferably, the cantilever device further includes a first lock buckle for connecting and fixing the first steel wire rope and the first lifting ear, and two ends of the first lock buckle are fixedly connected to the first steel wire rope and the first lifting ear respectively.
[0012] Preferably, the cantilever device further includes a second lock buckle for connecting and fixing the second steel wire rope and the second lifting ear, and both ends of the second lock buckle are fixedly connected to the second steel wire rope and the second lifting ear respectively.
[0013] Preferably, the inner wall of the first lifting ear is fixed to a first reinforcement ring, and the first reinforcement ring is fixedly connected to the first steel wire rope.
[0014] Preferably, a first reinforcing plate is fixed on the first lifting eye, and the first reinforcing plate is located on the side end of the first lifting eye away from the first steel wire rope.
[0015] Preferably, a second reinforcement ring is fixed on the second lifting ear, and the second reinforcement ring is fixedly connected to the second steel wire rope.
[0016] Preferably, a second reinforcing plate is fixed on the second lifting eye, and the second reinforcing plate is located on the side end of the second lifting eye away from the second steel wire rope.
[0017] Preferably, the cantilever device further comprises an inclined column for tightening and fixing the steel column, wherein the inclined column is located on a side of the steel column away from the second steel wire rope.
[0018] Preferably, the cantilever device further comprises an oblique support column for tightening and fixing the steel column, wherein the oblique support column is located at the side end of the steel column.
[0019] In summary, this application has the following beneficial technical effects:
[0020] 1. This application uses the cantilever device to cantilever the cantilever steel truss beam, reducing the requirements of the cantilever steel truss beam on the working environment. Even in a small space, the installation and erection of the cantilever steel truss beam, as well as the subsequent formwork support and concrete pouring can be completed. It is not only no longer restricted by the working environment, but also has a simple and practical structure, is easy to install and disassemble, has low cost and high efficiency.
[0021] 2. This application makes the cantilever device easier to install and disassemble by providing a first lock buckle and a second lock buckle, which not only reduces the labor intensity of construction workers but also improves construction efficiency.
[0022] 3. This application improves the tensile strength and tear resistance of the first lifting ear by arranging a first reinforcement ring and a first reinforcement plate on the first lifting ear.
[0023] 4. This application improves the tensile strength and tear resistance of the second lifting ear by arranging a second reinforcement ring and a second reinforcement plate on the second lifting ear.
[0024] 5. This application improves the stability of the steel column by setting up diagonal columns and diagonal bracing columns. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is the background technology figure in this application.
[0026] Figure 2 It is a structural diagram of the cantilevered steel truss beam of the cantilever device in the embodiment of the present application.
[0027] Figure 3 yes Figure 2 main view.
[0028] Figure 4 It is a schematic diagram of the local structure of the first lifting ear in the embodiment of the present application.
[0029] Figure 5 It is a schematic diagram of the local structure of the second lifting ear in the embodiment of the present application.
[0030] Figure 6 It is a schematic diagram of the overall structure of the cantilever device in the embodiment of the present application.
[0031] Explanation of the accompanying reference numerals: 100, cantilever steel truss beam; 200, building; 300, steel column; 11, first lifting eye; 12, second lifting eye; 13, first steel wire rope; 14, second steel wire rope; 15, hand hoist; 16, first locking buckle; 17, second locking buckle; 18, first reinforcement ring; 19, first reinforcement plate; 20, second reinforcement ring; 21, second reinforcement plate; 22, diagonal column; 23, diagonal bracing column. DETAILED DESCRIPTION
[0032] The present application is further described in detail below with reference to the accompanying drawings.
[0033] The embodiment of the present application discloses a cantilever device for a cantilevered steel truss beam, referring to Figure 1 It is used in the installation and construction of the cantilever steel truss beam 100, and the cantilever steel truss beam 100 during the installation process is cantilevered, inclined, hoisted and fixed.
[0034] Reference Figures 1 to 3 The cantilever device includes a first lifting eye 11, a second lifting eye 12, a first steel wire rope 13, a second steel wire rope 14 and a hand hoist 15.
[0035] The first lifting lug 11 is welded and fixed to the upper end of the cantilevered steel truss beam 100, and the second lifting lug 12 is welded and fixed to the steel column 300 on the side end of the building 200, and the second lifting lug 12 is located on the side end of the steel column 300, and the second lifting lug 12 is located on the side of the steel column 300 close to the cantilevered steel truss beam 100.
[0036] One end of the first steel wire rope 13 is fixedly connected to the first lifting lug 11 , and the other end of the first steel wire rope 13 is a free end; one end of the second steel wire rope 14 is fixedly connected to the second lifting lug 12 , and the other end of the second steel wire rope 14 is a free end.
[0037] Reference Figures 1 to 3 The two ends of the hand chain hoist 15 are respectively connected and fixed to the free end of the first steel wire rope 13 and the free end of the second steel wire rope 14 , and the hand chain hoist 15 can tighten the first steel wire rope 13 and the second steel wire rope 14 .
[0038] When in use, the first steel wire rope 13 can be passed through the first lifting eye 11 and then connected and fixed to the hand hoist 15. Similarly, the second steel wire rope 14 can be passed through the second lifting eye 12 and then connected and fixed to the hand hoist 15. However, considering the stability of the connection and for the convenience of disassembling the first steel wire rope 13 and the second steel wire rope 14 in the later stage, the cantilever device also includes a first lock buckle 16 for connecting and fixing the first steel wire rope 13 and the first lifting eye 11, and a second lock buckle 17 for connecting and fixing the second steel wire rope 14 and the second lifting eye 12. The two ends of the first lock buckle 16 pass through the first lifting eye 11 and the first steel wire rope 13 respectively, and then the first steel wire rope 13 is connected and fixed to the first lifting eye 11; the two ends of the second lock buckle 17 pass through the second lifting eye 12 and the second steel wire rope 14 respectively, and then the second steel wire rope 14 is connected and fixed to the second lifting eye 12.
[0039] Reference Figure 4 In order to improve the tensile and tearing strength of the first lifting ear 11 and the second lifting ear 12, a first reinforcement ring 18 is fixed on the inner wall of the hole of the first lifting ear 11. When in use, the first lock buckle 16 passes through the first reinforcement ring 18 and is connected and fixed to the first reinforcement ring 18, and a first reinforcement plate 19 is welded and fixed to the side end of the first lifting ear 11. The first reinforcement plate 19 is located on the side of the first lifting ear 11 away from the first steel wire rope 13.
[0040] Reference Figure 5 A second reinforcement ring 20 is fixed on the inner wall of the hole of the second lifting ear 12. When in use, the second lock buckle 17 passes through the second reinforcement ring 20 and is connected and fixed to the second reinforcement ring 20, and a second reinforcement plate 21 is welded and fixed to the side end of the second lifting ear 12. The second reinforcement plate 21 is located on the side of the second lifting ear 12 away from the second steel wire rope 14.
[0041] Further, refer to Figures 1 to 6Since the cantilevered steel truss beam 100 is heavy, in order to improve the stability of the steel column 300 at the side end of the building body 200, the cantilever device also includes a diagonal column 22, which is used to tighten and fix the steel column 300. The bottom of the diagonal column 22 is fixed to the floor slab of the building body 200, and the top of the side end of the diagonal column 22 is fixed to the steel column 300 by bolts. The diagonal column 22 is located on the side of the steel column 300 away from the second steel wire rope 14, and the diagonal column 22 and the first steel wire rope 13 and the second steel wire rope 14 are located in the same plane, so that the tension of the diagonal column 22 balances the tension of the second steel wire rope 14 on the steel column 300.
[0042] And considering that during actual installation, the diagonal column 22 cannot always be located in the same plane as the first steel wire rope 13 and the second steel wire rope 14, the cantilever device also includes a diagonal support column 23, which is also used to tighten and fix the steel column 300. The bottom of the diagonal support column 23 is fixed to the floor slab of the building 200, and the top of the side end of the diagonal support column 23 is fixed to the steel column 300 by bolt connection. The diagonal support column 23 is located at the side end of the steel column 300, and the diagonal support column 23 is located between the cantilevered steel truss beam 100 and the diagonal support column 22.
[0043] During use, since the cantilever steel truss beam 100 is relatively large as a whole, when the cantilever steel truss beam 100 is cantilevered and hoisted using the cantilever device, a horizontal beam is first cantilevered and pulled using the cantilever device, and then other vertical beams, horizontal beams, inclined beams and other basic beam structures of the cantilever steel truss beam 100 are gradually installed and spliced based on the horizontal beam until the entire cantilever steel truss beam 100 is installed, and then the formwork is supported, and finally the concrete is poured.
[0044] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A cantilever steel truss beam cantilever device, characterized in that: include: The first lifting lug is fixed to the upper end of the cantilevered steel truss beam; The second lifting lug is fixed to the side end of the steel column of the building; a first steel wire rope, one end of which is fixedly connected to the first lifting eye and the other end of which is a free end; a second steel wire rope, one end of which is fixedly connected to the second lifting eye and the other end of which is a free end; as well as The hand chain hoist has two ends fixedly connected to the free end of the first steel wire rope and the free end of the second steel wire rope respectively, and is used to tighten the first steel wire rope and the second steel wire rope.
2. The cantilever steel truss beam cantilever device according to claim 1, characterized in that: The cantilever device also includes a first lock buckle for connecting and fixing the first steel wire rope and the first lifting ear, and the two ends of the first lock buckle are fixedly connected to the first steel wire rope and the first lifting ear respectively.
3. The cantilever steel truss beam cantilever device according to claim 1, characterized in that: The cantilever device also includes a second lock buckle for connecting and fixing the second steel wire rope and the second lifting ear, and the two ends of the second lock buckle are fixedly connected to the second steel wire rope and the second lifting ear respectively.
4. The cantilever steel truss beam cantilever device according to claim 1, characterized in that: The inner wall of the first lifting ear is fixed to a first reinforcement ring, and the first reinforcement ring is fixedly connected to the first steel wire rope.
5. The cantilever steel truss beam cantilever device according to claim 1, characterized in that: A first reinforcing plate is fixed on the first lifting eye, and the first reinforcing plate is located on a side end of the first lifting eye away from the first steel wire rope.
6. The cantilever steel truss beam cantilever device according to claim 1, characterized in that: A second reinforcement ring is fixed on the second lifting eye, and the second reinforcement ring is fixedly connected to the second steel wire rope.
7. The cantilever steel truss beam cantilever device according to claim 1, characterized in that: A second reinforcing plate is fixed on the second lifting eye, and the second reinforcing plate is located on a side end of the second lifting eye away from the second steel wire rope.
8. The cantilever steel truss beam cantilever device according to claim 1, characterized in that: The cantilever device also includes an oblique column for tightening and fixing the steel column, and the oblique column is located on a side of the steel column away from the second steel wire rope.
9. The cantilever steel truss beam cantilever device according to claim 1, characterized in that: The cantilever device also includes an oblique support column for tightening and fixing the steel column, and the oblique support column is located at the side end of the steel column.