Fabricated overhanging cable-stayed device
By using prefabricated cantilevered cable-stayed devices, rigid cable-stayed supports are formed by connecting clamps and high-strength bolts, which solves the safety and precision problems in the construction of cantilevered steel structures and achieves low-cost and high-efficiency construction results.
Patent Information
- Application Number
- CN202423061740.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-12
AI Technical Summary
Existing cantilever steel structure construction has safety hazards such as wire rope breakage and hand-operated hoist malfunction. In addition, the installation and removal of diagonal bracing are costly and require a large space, which affects construction safety and accuracy.
The prefabricated cantilevered cable tie device uses clamps to encircle the concrete structural column and connects them with high-strength bolts to form a rigid cable tie. The clamps are composed of V-shaped H-beams, U-shaped H-beams, rectangular plates and V-shaped plates, combined with tie rods and stiffening plates to provide stable and reusable cable tie support.
It improves the safety and installation accuracy of cantilever structure construction, reduces costs, reduces space requirements, meets green and low-carbon requirements, and the device can be reused.
Smart Images
Figure CN223577300U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction technology for cantilevered steel structures in building engineering, and more specifically to a prefabricated cantilevered cable-stayed device. Background Technology
[0002] In commercial and office buildings, large cantilevered steel structures can be used to create a distinctive architectural appearance, provide shaded and covered areas, and enhance the building's visual impact. Cantilevered structures can provide large spans to meet functional requirements and also serve as a prominent architectural feature. They can provide additional covered space while reducing the footprint on the ground floor.
[0003] During the construction of long-span steel cantilever structures, due to the single-point support of the cantilever, the installation process often adopts the form of top diagonal bracing or bottom diagonal bracing to assist the installation. Among them, the top diagonal bracing often uses steel wire rope and hand-operated hoist to install the cantilever, while the bottom diagonal bracing often adopts a steel section design.
[0004] The main problems with top-mounted inclined hoists are: The wire rope and hoist are of a flexible type, and the wire rope may break during hoisting due to wear, corrosion, broken wires, or exposed core, posing a risk of component falling. Improper maintenance or overloading of the hand-operated hoist may also lead to brake failure or chain breakage, causing safety accidents. Although hand-operated hoists are relatively inexpensive, frequent hoisting or lifting heavy loads may require more hoists and wire ropes, increasing costs. Precisely controlling the positioning of the lifted object during hoisting is difficult, potentially affecting installation accuracy.
[0005] Bottom bracing often employs a steel profile design: The bottom steel bracing is typically triangular, with one end welded to the structural column and the other end welded to the lower flange of the cantilever structure. Installing bottom bracing may require additional space inside or around the building, which can be a challenge in space-constrained urban environments. The fabrication, installation, and subsequent removal of the bracing all incur additional costs, including material and labor costs. Installation and removal of the bracing must be carried out at height, increasing the risk of accidents during construction. Furthermore, the stability of the bracing itself needs to be strictly monitored to prevent accidents during construction.
[0006] Therefore, how to provide a prefabricated cantilever cable-stayed device that can ensure the construction safety and installation accuracy of cantilever structures is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0007] In view of this, the present invention provides a prefabricated cantilever cable-stayed device to ensure the construction safety and installation accuracy of cantilever structures.
[0008] To achieve the above objectives, the present invention adopts the following technical solution:
[0009] A prefabricated cantilever cable-stayed device, comprising:
[0010] The clamp includes V-shaped H-beams, U-shaped H-beams, rectangular plates, and V-shaped plates. The V-shaped H-beams are formed by bolting the ends of two H-beams together to form a V-shape. The U-shaped H-beams are formed by three H-beams enclosing a U-shape. Two V-shaped H-beams are joined together to form a rectangle. Two H-beams are arranged parallel to each other at the top of the two joined V-shaped H-beams. The U-shaped H-beams are located at the bottom of the two V-shaped H-beams. Two rectangular plates are provided at the joint positions of the two V-shaped H-beams. The V-shaped plate is located at one of the joint positions of the two V-shaped H-beams, between the two rectangular plates.
[0011] A V-shaped connecting plate, wherein four bolt holes are provided at one end of the V-shaped connecting plate;
[0012] A pull rod, one end of which is connected to the V-shaped plate, and the other end of which is connected to one end of the V-shaped connecting plate with four bolt holes.
[0013] Furthermore, the V-shaped plate is positioned downwards between the two rectangular plates, and the downward direction of the V-shaped plate is the same as the opening direction of the U-shaped H-beam.
[0014] Furthermore, the top of the V-shaped H-beam is connected to two parallel H-beams by high-strength bolts, and the bottom of the V-shaped H-beam is connected to the U-shaped H-beam by high-strength bolts.
[0015] Furthermore, each of the H-beams is provided with expansion bolts.
[0016] Furthermore, the two rectangular plates are connected to the V-shaped plate by high-strength bolts, and anti-shear pins are provided on the two rectangular plates and the V-shaped plate.
[0017] Furthermore, the tie rod includes an upper chord and a vertical web member. The two ends of the upper chord are respectively connected to the V-shaped plate and the V-shaped connecting plate by high-strength bolts. The vertical web member is welded to the middle of the upper chord. The two sides of the vertical web member are connected to the two ends of the upper chord by two diagonal web members.
[0018] Furthermore, stiffening plates are provided at the connection points of the upper chord and the vertical web member, the connection points of the vertical web member and the diagonal web member, and the connection points of the diagonal web member and the upper chord.
[0019] Furthermore, the length of the vertical web member is 1 / 5 of the length of the upper chord member.
[0020] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a prefabricated cantilevered cable-stayed device, which is mainly used in the case of cantilevered steel structure construction with concrete as the main structure. The clamps encircle the concrete structural column and are suitable for different types such as round or square columns. It solves the problem of cable-stayed fixation during the construction of cantilevered steel structures, forming a rigid cable-stayed measure. It provides a cable-stayed device that is easy to operate, quick to assemble, and stable in force for the construction of cantilevered steel structures. The components adopt prefabricated connection, which can be reused. The device itself has low wear and tear, and is easy to install and disassemble, which meets the requirements of green and low-carbon.
[0021] No additional space is required inside or around the building to add structural measures. The clamps are connected to the concrete structure with expansion bolts, which does not affect the structural performance. The device adopts rigid bolted assembly, which has high structural stability, saves welding time and welding material consumption, and can be reused in similar projects, effectively saving the cost of measures. The device can be removed after the overall cantilever structure construction is completed, providing effective tension for the overall structure construction. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0023] Figure 1 A schematic diagram of the prefabricated cantilever cable-stayed device provided by this utility model;
[0024] Figure 2 Exploded view of the prefabricated cantilever cable-stayed device provided by this utility model;
[0025] Figure 3 A schematic diagram of the structure of the clamp provided by this utility model;
[0026] Figure 4 Exploded view of the clamp structure provided by this utility model;
[0027] Figure 5 A schematic diagram of the structure of the pull rod provided by this utility model;
[0028] Figure 6 An installation diagram of the prefabricated cantilever cable-stayed device provided by this utility model;
[0029] Figure 7 Application scenarios of the prefabricated cantilever cable-stayed device provided by this utility model;
[0030] Figure 8This is a schematic diagram illustrating the installation of this utility model without the need for clamps.
[0031] Wherein: 1 is a clamp; 11 is an H-beam; 12 is a V-shaped H-beam; 13 is a U-shaped H-beam; 14 is a rectangular plate; 15 is a V-shaped plate; 16 is an expansion bolt; 17 is a shear pin; 2 is a V-shaped connecting plate; 21 is a bolt hole; 3 is a tie rod; 31 is an upper chord; 32 is a vertical web member; 33 is a diagonal web member; 34 is a stiffening plate; 4 is a bolt; 5 is a high-strength bolt. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] See Figure 1-8 This utility model discloses a prefabricated cantilever cable-stayed device, comprising:
[0034] The clamp 1 includes a V-shaped H-beam 12, a U-shaped H-beam 13, a rectangular plate 14, and a V-shaped plate 15. The V-shaped H-beam 12 is formed by connecting the ends of two H-beams 11 with bolts 4 to form a V-shape. The U-shaped H-beam 13 is formed by three H-beams 11 enclosing a U-shape. The two V-shaped H-beams 12 are joined together to form a rectangle. Two H-beams 11 are placed parallel to each other on the top of the two joined V-shaped H-beams 12. The U-shaped H-beam 13 is placed at the bottom of the two V-shaped H-beams 12. Two rectangular plates 14 are provided at the joint positions of the two V-shaped H-beams 12. The V-shaped plate 15 is placed at one of the joint positions of the two V-shaped H-beams 12, and is located between the two rectangular plates 14. The main function of the clamp 1 is to form a stable and rigid diagonal support during the construction of the cantilevered steel structure, and to ensure the safety, accuracy, and quality of the cantilevered steel beam installation process.
[0035] V-shaped connecting plate 2, with four bolt holes 21 at one end; used to connect and fix with the lower end of the tie rod 3 by inserting high-strength bolts 5;
[0036] Tie rod 3, one end of which is connected to V-shaped plate 15, and the other end of which is connected to one end of V-shaped connecting plate 2 with four bolt holes 21.
[0037] In this embodiment, the V-shaped plate 15 is disposed downward between the two rectangular plates 14, and the downward direction of the V-shaped plate 15 is the same as the opening direction of the U-shaped H-beam 13.
[0038] In this embodiment, the top of the V-shaped H-beam 12 is connected to two parallel H-beams 11 by high-strength bolts 5, and the bottom of the V-shaped H-beam 12 is connected to the U-shaped H-beam 13 by high-strength bolts 5.
[0039] In this embodiment, each H-beam 11 is provided with an expansion bolt 16; the clamp 1 adopts a ring-shaped concrete column and is fixed to the concrete floor slab and the concrete column by driving in the expansion bolt 16.
[0040] In this embodiment, the two rectangular plates 14 and the V-shaped plate 15 are connected by high-strength bolts 5, and the two rectangular plates 14 and the V-shaped plate 15 are provided with anti-shear pins 17 to resist shearing force.
[0041] In this embodiment, the tie rod 3 includes an upper chord 31 and a vertical web member 32. The two ends of the upper chord 31 are connected to the V-shaped plate 15 and the V-shaped connecting plate 2 respectively by high-strength bolts 5. The vertical web member 32 is welded to the middle of the upper chord 31. The two sides of the vertical web member 32 are connected to the two ends of the upper chord 31 by two diagonal web members 33.
[0042] In this embodiment, stiffening plates 34 are provided at the connection positions of the upper chord 31 and the vertical web member 32, the connection positions of the vertical web member 32 and the diagonal web member 33, and the connection positions of the diagonal web member 33 and the upper chord 31; these plates are welded to the corresponding steel web members to transmit force.
[0043] In this embodiment, the length of the vertical web member 32 is 1 / 5 of the length of the upper chord member 31; one end of the two diagonal web members 33 is welded to the middle vertical web member 32, and the other end is welded to the lower flange of the upper chord member 31, with the welding center position being 1 / 5 of the upper chord member 31.
[0044] In addition, in this embodiment, the U-shaped H-beam 13 consists of three independent H-beams 11, which are positioned to form a U-shape. The three H-beams 11 do not interfere with each other, and the three U-shaped H-beams 11 are all connected to the bottom of the V-shaped H-beam 12 by high-strength bolts 5.
[0045] V-shaped connecting plate 2 is welded to the upper flange of the cantilever beam that needs to be fixed by diagonal bracing.
[0046] The lower end of the V-shaped connecting plate 2 is welded to the upper flange of the cantilever steel beam. The welding center is 2 / 3 of the distance from the structural column, offset from the center line by 30-50mm, to prevent overlap with the hoisting wire rope.
[0047] The vertical spacing between clamp 1 and V-shaped connecting plate 2 is two standard floors, with each floor considered to have a floor height of 4.5m. The center of clamp 1 coincides with the center of the structural column. The dimensions of tie rod 3 are designed based on the actual cantilever length. V-shaped connecting plate 2 is generally set at a position 30-50mm off the center line of the steel beam at 2 / 3 of the distance from the root at the cantilever end to avoid overlapping with the position of the hoisting wire rope.
[0048] The U-shaped H-beam 13 is fixed to the floor slab with expansion bolts 16 to prevent the overall displacement of the clamp 1; the upper flange is connected to the two V-shaped H-beams 12 to form a rectangle with high-strength bolts 5, and two expansion bolts 16 are set in the middle of the two H-beams 11 in parallel and driven into the concrete column wall, mainly to prevent the clamp 1 steel from moving back and forth.
[0049] Example 2, as Figure 8 As shown, if it is a steel frame structure and not a concrete structure, the top of the tie rod 3 can be directly welded to the steel column wall with a bracket, and the V-shaped connecting plate 2 is connected to the tie rod 3 by bolts 4, eliminating the need for clamps 1.
[0050] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.
[0051] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A prefabricated cantilevered cable-stayed device, characterized in that, include: The clamp includes V-shaped H-beams, U-shaped H-beams, rectangular plates, and V-shaped plates. The V-shaped H-beams are formed by bolting the ends of two H-beams together to form a V-shape. The U-shaped H-beams are formed by three H-beams enclosing a U-shape. Two V-shaped H-beams are joined together to form a rectangle. Two H-beams are arranged parallel to each other at the top of the two joined V-shaped H-beams. The U-shaped H-beams are located at the bottom of the two V-shaped H-beams. Two rectangular plates are provided at the joint positions of the two V-shaped H-beams. The V-shaped plate is located at one of the joint positions of the two V-shaped H-beams, between the two rectangular plates. A V-shaped connecting plate, wherein four bolt holes are provided at one end of the V-shaped connecting plate; A pull rod, one end of which is connected to the V-shaped plate, and the other end of which is connected to one end of the V-shaped connecting plate with four bolt holes.
2. The prefabricated cantilevered cable-stayed device according to claim 1, characterized in that, The V-shaped plate is positioned downwards between the two rectangular plates, and the downward direction of the V-shaped plate is the same as the opening direction of the U-shaped H-beam.
3. The prefabricated cantilevered cable-stayed device according to claim 2, characterized in that, The top of the V-shaped H-beam is connected to two parallel H-beams by high-strength bolts, and the bottom of the V-shaped H-beam is connected to the U-shaped H-beam by high-strength bolts.
4. The prefabricated cantilevered cable-stayed device according to claim 1, characterized in that, Each of the H-beams is equipped with expansion bolts.
5. A prefabricated cantilevered cable-stayed device according to claim 1, characterized in that, The two rectangular plates are connected to the V-shaped plate by high-strength bolts, and the two rectangular plates and the V-shaped plate are provided with shear pins.
6. A prefabricated cantilevered cable-stayed device according to claim 1, characterized in that, The tie rod includes an upper chord and a vertical web member. The two ends of the upper chord are connected to the V-shaped plate and the V-shaped connecting plate by high-strength bolts, respectively. The vertical web member is welded to the middle of the upper chord, and the two sides of the vertical web member are connected to the two ends of the upper chord by two diagonal web members.
7. A prefabricated cantilevered cable-stayed device according to claim 6, characterized in that, Stiffening plates are provided at the connection points of the upper chord and the vertical web members, the connection points of the vertical web members and the diagonal web members, and the connection points of the diagonal web members and the upper chord.
8. A prefabricated cantilevered cable-stayed device according to claim 6, characterized in that, The length of the vertical web member is 1 / 5 of the length of the upper chord member.