Spoke type crossed cable net structure system and construction method thereof

Abstract

The invention provides a spoke type crossed cable net structure system and a construction method thereof, and relates to the technical field of building structures.The spoke type crossed cable net structure system comprises a crossed cable net, an inner ring cable structure, a rigid compression ring beam, a plurality of supporting columns and a plurality of diagonal bridging, the rigid compression ring beam is arranged on the supporting columns, and the supporting columns are fixedly connected with the rigid compression ring beam; one end of the crossed cable net is hinged to the inner ring cable structure, and the other end of the crossed cable net is hinged to the rigid compression ring beam; the crossed cable net comprises a plurality of radial cables which are arranged in a crossed mode and fixedly connected through anchoring type cable clamps at the crossed positions. The cable net structure has the beneficial effects that the cable net structure is uniform in grid distribution, stable in topological relation, high in lateral rigidity, high in overall collapse resistance, capable of adapting to complex load conditions and high in structural stability and robustness.

Description

Technical Field

[0001] The invention relates to the technical field of building structures, and in particular to a spoke-type cross-cable net structure system and a construction method thereof. Background Art

[0002] Cable structures are widely used in major national projects such as large stadiums, exhibition halls, glass curtain walls, astronomical monitoring facilities, etc. This type of structure has many advantages such as strong spanning capacity, fast construction speed, and beautiful shape. Therefore, more and more designers prefer to use large-span space cable structures as load-bearing structures.

[0003] In the prior art, the spoke-type cable net structure is widely used in actual construction. The spoke-type cable net structure is a cable net layout formed by connecting cables to the central area to form a radial shape. Compared with the single-layer orthogonal cable net structure, this structure can form any large opening layout form, and compared with the single-layer cable net structure without inner ring, it can form any large opening structure form and significantly reduce the difficulty of construction. However, the traditional spoke-type cable net structure also has some limitations and shortcomings in practical applications. The stiffness distribution of the traditional spoke-type cable net structure is uneven, the lateral stiffness is weak, and lateral instability is prone to occur; in addition, the inner ring cable of the spoke-type cable net structure is a sensitive component of the structure. The inner ring cable of the traditional spoke-type cable net structure has insufficient resistance to continuous collapse. Under extreme loads and long-term service, the failure of the ring cable is prone to continuous collapse of the local or overall structure.

[0004] How to solve the above technical problems is the subject faced by the present invention. Summary of the invention

[0005] In order to address the deficiencies in the prior art, the present invention provides a spoke-type cross-cable net structure system and a construction method thereof, which has uniform grid distribution, stable topological relationship, large lateral stiffness, strong overall anti-collapse ability of the structure, can adapt to complex load conditions, and has high structural stability and robustness.

[0006] The technical solution adopted by the present invention to solve its technical problems is: the present invention provides a spoke-type cross cable net structure system, including a cross cable net, an inner ring cable structure, a rigid compression ring beam, a plurality of support columns and a plurality of scissors struts, the rigid compression ring beam is arranged on a plurality of the support columns, a plurality of the support columns are fixedly connected to the rigid compression ring beam, one end of the cross cable net is hinged to the inner ring cable structure, and the other end is hinged to the rigid compression ring beam, a plurality of the support columns are hinged to a plurality of the scissors struts; the cross cable net includes a plurality of radial cables, the plurality of the radial cables are cross-arranged and the intersections are fixed by anchor-type cable clamps.

[0007] The crossed cable net is woven and crossed by a number of radial cables, and fixed at the crossing points by anchor cable clamps, so that the crossed cable net can maintain a fixed position under the stress state without slipping, ensuring uniform grid distribution and avoiding instability that may occur when the local area is subjected to external forces or uneven loads.

[0008] Preferably, friction materials are provided in the grooves of the anchor cable clamps. By setting friction materials, the friction force between the grooves and the cable body is increased, further improving the stability of the cable net structure.

[0009] Preferably, a first cable node is provided at the intersection of any two of the radial cables of the crossed cable net and the inner ring cable structure. One end of the first cable node is fixedly connected to the inner ring cable structure, and the other end is hinged to any two of the radial cables through an ear plate and a sleeve; a second cable node is provided at the intersection of any two of the radial cables of the crossed cable net and the rigid compression ring beam. One end of the second cable node is fixedly connected to the rigid compression ring beam, and the other end is hinged to any two of the radial cables through an ear plate and a sleeve.

[0010] The radial cables are hinged to the first cable node and the second cable node through ear plates and sleeves, enabling the radial cables to freely vary within a certain angle range, forming positive and negative Gaussian curves to constitute a stable cable net structure system. The positive Gaussian curve structure part resists the external load effect, and the negative Gaussian curve structure part resists the wind suction force, and can adapt to complex load conditions.

[0011] Preferably, any one of sealed cables, high-vanadium cables or carbon fiber cables is adopted for the radial cables.

[0012] Preferably, the inner ring cable structure includes at least one inner ring cable, and any one of sealed cables, high-vanadium cables or carbon fiber cables is adopted for the inner ring cable.

[0013] Any one of sealed cables, high-vanadium cables or carbon fiber cables is adopted for the radial cables and the inner ring cables, further reducing the structural self-weight. When the structure span is greater than 100m, it is necessary to consider that the inner ring cable is composed of multiple ring cables to increase the robustness and anti-collapse ability of the inner ring cable.

[0014] Preferably, any one of box girders, steel truss girders, concrete girders, and steel-concrete composite girders is adopted for the rigid compression ring beam.

[0015] Preferably, the support columns are made of at least any one of square steel pipes, circular steel pipes, lattice columns, and concrete columns.

[0016] Preferably, the cross braces are made of at least any one of flat steel, angle steel, and round steel. A number of the cross braces 5 are arranged at intervals or multiple columns are arranged at intervals between a number of the support columns to increase the overall stability and lateral displacement resistance stiffness of the structure.

[0017] The present invention also provides a construction method of a spoke-type cross-cable net structure system, comprising the following steps:

[0018] S1. Determine the position of the support column according to the design drawings and install it securely.

[0019] S2. Assemble the rigid compression ring beam section by section on the working plane formed at the top of the support column. After the assembly is completed, fix the support column and the rigid compression ring beam together.

[0020] By assembling the rigid compression ring beams section by section on the top of the support column, it can be ensured that each section of the beam can be spliced ​​under reasonable structural constraints. This method can effectively control the construction error and deformation of the beam body. During the assembly process, the fixed connection of the rigid compression ring beam further ensures the strong connection between the cable net and the support system. Compared with the conventional large-scale pre-assembly method, the segment-by-segment assembly method can more flexibly cope with complex on-site environments, reducing material waste and installation difficulties.

[0021] S3. Scissor braces are arranged at intervals between the supporting columns or at intervals between multiple columns, and the supporting columns are hinged to the scissor braces.

[0022] The scissor braces are set at intervals or multiple columns are set at intervals between the supporting columns and connected by hinges. This not only improves the structure's ability to resist lateral forces, but also effectively shares the deformation of the structure under vertical loads through the action of the scissor braces, thereby enhancing the stability of the overall structure.

[0023] S4. Assemble the cross cable net in the area surrounded by the support columns, and fix the cross nodes of the radial cables with anchored cable clamps.

[0024] S5. Hinged the assembled cross cable net and the inner ring cable structure through sleeves and ear plates, and use one end of the tooling cable to connect the first cable node on the inner ring cable structure, and the other end to connect the second cable node on the rigid compression ring beam.

[0025] The tooling cable connects the inner ring cable node (first cable node) and the compression ring beam node (second cable node) to form a temporary closed force transmission ring to improve stability.

[0026] S6. Connect the tooling ropes through synchronous hydraulic lifting equipment, lift the cross cable net and the inner ring cable structure to the designed elevation, hinge them with the rigid compression ring beam, install the horseway, disassemble the tooling ropes, and check the installation quality.

[0027] S7. After the main structure is stable, construct the secondary roof steel structure, roof membrane or other covering structure, and construct the maintenance structure around the main structure.

[0028] S8. Complete the overall structural construction and comprehensively inspect the construction quality.

[0029] The beneficial effects of the present invention are as follows: the grid distribution of the cable net structure is uniform, the topological relationship is stable, the lateral stiffness is large, the overall anti-collapse ability of the structure is strong, it can adapt to complex load conditions, and the structural stability and robustness are high. The cross cable net is fixed by anchoring cable clamps at the intersection of the radial cables, so that the cross cable net can maintain a fixed position without slipping under stress, ensuring that the spatial topological relationship of the cable net is stable and unchanged, and avoiding the instability that may occur when the local area is subjected to external force or uneven load. By arranging friction materials in the grooves of the cable clamps, the friction between the grooves and the cable body is increased, and the risk of slippage of the cross cable net structure is further reduced. The radial cables and the inner ring cables adopt structures such as carbon fiber cables, and the overall structure is lighter. The radial cables are hinged to the first cable node and the second cable node through ear plates and sleeves, so that the radial cables can change freely within a certain angle range and can adapt to complex load conditions. The scissor braces are arranged at intervals between the support columns or at intervals between multiple columns to increase the overall stability and anti-lateral displacement stiffness of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional isometric view of the present invention.

[0031] Figure 2 It is a front elevation view of the present invention.

[0032] Among them, the accompanying drawings are marked as: 1. Cross cable net; 2. Inner ring cable structure; 3. Rigid compression ring beam; 4. Support column; 5. Scissors brace. DETAILED DESCRIPTION

[0033] In order to clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods.

[0034] Embodiment 1:

[0035] See also Figure 1 , Figure 2 As shown, this embodiment is a spoke-type cross cable net structure system. The present invention provides a spoke-type cross cable net structure system, including a cross cable net 1, an inner ring cable structure 2, a rigid compression ring beam 3, a plurality of support columns 4 and a plurality of scissors struts 5. The rigid compression ring beam 3 is arranged on a plurality of support columns 4, and the plurality of support columns 4 are fixedly connected to the rigid compression ring beam 3. One end of the cross cable net 1 is hinged to the inner ring cable structure 2, and the other end is hinged to the rigid compression ring beam 3. The plurality of support columns 4 are hinged to the plurality of scissors struts 5. The cross cable net 1 includes a plurality of radial cables, and the plurality of radial cables are cross-arranged and fixed at the intersections by anchoring cable clamps.

[0036] It should be noted that the cross cable net 1 is woven and crossed by a number of radial cables, and fixed at the intersection by anchoring cable clamps, so that the cross cable net 1 can maintain a fixed position without slipping under stress, ensuring uniform grid distribution and avoiding possible instability when local areas are subjected to external forces or uneven loads.

[0037] Friction material is arranged in the groove of the anchored cable clamp, and the friction force between the groove and the cable body is increased by arranging the friction material, thereby further improving the stability of the cable net structure.

[0038] A first cable node is provided at the intersection of any two radial cables of the cross cable net 1 and the inner ring cable structure 2, one end of the first cable node is fixedly connected to the inner ring cable structure 2, and the other end is hinged to any two radial cables through an ear plate and a sleeve; a second cable node is provided at the intersection of any two radial cables of the cross cable net 1 and the rigid pressure ring beam 3, one end of the second cable node is fixedly connected to the rigid pressure ring beam 3, and the other end is hinged to any two radial cables through an ear plate and a sleeve.

[0039] It should be noted that the radial cable is hinged to the first cable node and the second cable node through ear plates and sleeves, so that the radial cable can change freely within a certain angle range, forming positive and negative Gaussian curves to form a stable cable net structure system. The positive Gaussian curve structure part resists the external load effect, and the negative Gaussian curve structure part resists wind suction, and can adapt to complex load conditions.

[0040] The radial cable adopts any one of a closed cable, a high-vanadium cable or a carbon fiber cable.

[0041] The inner ring cable structure 2 includes at least one inner ring cable, and the inner ring cable is any one of a closed cable, a high-vanadium cable or a carbon fiber cable.

[0042] It should be noted that the radial cables and inner ring cables are any of the closed cables, high vanadium cables or carbon fiber cables to further reduce the deadweight of the structure. When the span of the structure is greater than 100m, it is necessary to consider that the inner ring cable is composed of multiple ring cables to increase the robustness and anti-collapse ability of the inner ring cable.

[0043] The rigid compression ring beam 3 is any one of a box beam, a steel truss beam, a concrete beam, and a steel-concrete beam.

[0044] The support column 4 is made of at least any one of a square steel pipe, a round steel pipe, a lattice column, and a concrete column.

[0045] The scissors struts 5 are made of at least any one of flat steel, angle steel, and round steel. Several scissors struts 5 are arranged at intervals or multiple columns are arranged at intervals between several support columns to increase the overall stability and anti-lateral displacement stiffness of the structure.

[0046] Embodiment 2:

[0047] This embodiment provides a construction method for a spoke-type cross-cable net structure system, comprising the following steps:

[0048] S1. Determine the position of the support column according to the design drawings and install it securely.

[0049] S2. Assemble the rigid compression ring beam section by section on the working plane formed at the top of the support column. After the assembly is completed, fix the support column and the rigid compression ring beam together.

[0050] By assembling the rigid compression ring beams section by section on the top of the support column, it can be ensured that each section of the beam can be spliced ​​under reasonable structural constraints. This method can effectively control the construction error and deformation of the beam body. During the assembly process, the fixed connection of the rigid compression ring beam further ensures the strong connection between the cable net and the support system. Compared with the conventional large-scale pre-assembly method, the segment-by-segment assembly method can more flexibly cope with complex on-site environments, reducing material waste and installation difficulties.

[0051] S3. Scissor braces are arranged at intervals between the supporting columns or at intervals between multiple columns, and the supporting columns are hinged to the scissor braces.

[0052] The scissor braces are set at intervals or multiple columns are set at intervals between the supporting columns and connected by hinges. This not only improves the structure's ability to resist lateral forces, but also effectively shares the deformation of the structure under vertical loads through the action of the scissor braces, thereby enhancing the stability of the overall structure.

[0053] S4. Assemble the cross cable net in the area surrounded by the support columns, and fix the cross nodes of the radial cables with anchored cable clamps.

[0054] S5. Hinged the assembled cross cable net and the inner ring cable structure through sleeves and ear plates, and use one end of the tooling cable to connect the first cable node on the inner ring cable structure, and the other end to connect the second cable node on the rigid compression ring beam.

[0055] The tooling cable connects the inner ring cable node (first cable node) and the compression ring beam node (second cable node) to form a temporary closed force transmission ring to improve stability.

[0056] S6. Connect the tooling ropes through synchronous hydraulic lifting equipment, lift the cross cable net and the inner ring cable structure to the designed elevation, hinge them with the rigid compression ring beam, install the horseway, dismantle the tooling ropes, and check the installation quality.

[0057] S7. After the main structure is stable, construct the secondary roof steel structure, roof membrane or other covering structure, and construct the maintenance structure around the main structure.

[0058] S8. Complete the overall structural construction and comprehensively inspect the construction quality.

[0059] Technical features not described in the present invention can be achieved through or by adopting existing technologies and will not be described in detail here. Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A spoke-type cross-cable net structure system, characterized in that: The invention comprises a cross cable net (1), an inner ring cable structure (2), a rigid compression ring beam (3), a plurality of support columns (4) and a plurality of scissor struts (5), wherein the rigid compression ring beam (3) is arranged on a plurality of support columns (4), and the plurality of support columns (4) are fixedly connected to the rigid compression ring beam (3); one end of the cross cable net (1) is hinged to the inner ring cable structure (2), and the other end is hinged to the rigid compression ring beam (3); and the plurality of support columns (4) are hinged to the plurality of scissor struts (5); the cross cable net (1) comprises a plurality of radial cables, and the plurality of radial cables are cross-arranged and fixed at the intersections by anchor-type cable clamps.

2. The spoke-type cross-cable net structure system according to claim 1, characterized in that: Friction material is arranged in the groove of the anchoring type cable clamp.

3. The spoke-type cross-cable net structure system according to claim 1, characterized in that: A first cable node is provided at the intersection of any two radial cables of the cross cable net (1) and the inner ring cable structure (2), one end of the first cable node is fixedly connected to the inner ring cable structure (2), and the other end is hinged to any two radial cables through an ear plate and a sleeve; a second cable node is provided at the intersection of any two radial cables of the cross cable net (1) and the rigid pressure ring beam (3), one end of the second cable node is fixedly connected to the rigid pressure ring beam (3), and the other end is hinged to any two radial cables through an ear plate and a sleeve.

4. The spoke-type cross-cable net structure system according to claim 1, characterized in that: The radial rope is any one of a closed rope, a high-vanadium rope or a carbon fiber rope.

5. The spoke-type cross-cable net structure system according to claim 1, characterized in that: The inner ring cable structure (2) comprises at least one inner ring cable, and the inner ring cable is any one of a closed cable, a high-vanadium cable or a carbon fiber cable.

6. The spoke-type cross-cable net structure system according to claim 1, characterized in that: The rigid compression ring beam (3) is any one of a box beam, a steel truss beam, a concrete beam, and a steel-concrete beam.

7. The spoke-type cross-cable net structure system according to claim 1, characterized in that: The support column (4) is made of at least any one of a square steel pipe, a round steel pipe, a lattice column, and a concrete column.

8. The spoke-type cross-cable net structure system according to claim 1, characterized in that: The scissors struts (5) are made of at least any one of flat steel, angle steel, and round steel, and a plurality of the scissors struts (5) are arranged at intervals or a plurality of columns are arranged at intervals between a plurality of the support columns (4).

9. A construction method for a spoke-type cross-cable net structure system, characterized in that: The following steps are involved: S1. Determine the position of the support column (4) according to the design drawing and fix and install it; S2, assembling the rigid pressure ring beam (3) section by section on the working plane formed at the top of the support column (4), and fixing the support column (4) and the rigid pressure ring beam (3); S3, arranging scissor braces (5) at intervals between the support columns (4) or arranging scissor braces (5) at intervals between multiple columns, and hinge-connecting the support columns (4) and the scissor braces (5); S4, assembling the cross cable net (1) in the area surrounded by the support columns (4), and fixing and connecting the cross nodes of the radial cables by means of anchoring cable clamps; S5, hinge the assembled cross cable net (1) and the inner ring cable structure (2) through sleeves and ear plates, and use one end of the tooling cable to connect the first cable node on the inner ring cable structure (2), and the other end to connect the second cable node on the rigid compression ring beam (3); S6. Connect the tooling ropes through synchronous hydraulic lifting equipment, lift the cross cable net (1) and the inner ring cable structure (2) to the designed elevation, hinge them with the rigid compression ring beam (3), install the horseway, disassemble the tooling ropes, and check the installation quality; S7. After the main structure is stable, construct the secondary roof steel structure, roof membrane or other covering structure, and construct the maintenance structure around the main structure; S8. Complete the overall structural construction and comprehensively inspect the construction quality.

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