Arched beam cable dome structure suitable for roof

Abstract

The invention provides an arched beam cable dome structure suitable for a roof, and belongs to the field of house domes, the arched beam cable dome structure comprises an arched ring beam assembly, a plurality of cable assemblies and a plurality of edge beam supporting assemblies; the arch ring beam assembly comprises an arch ring beam main body; the plurality of connecting holes are formed in the arch ring beam main body and are arranged in one-to-one correspondence with the plurality of cable assemblies or the plurality of boundary beam supporting assemblies; the cable assembly comprises a connecting piece with one end located in the connecting hole; one end of the steel cable is fixedly connected with the connecting piece, and the other end is fixedly connected with an anchoring stress component on the roof; the boundary beam supporting assembly comprises an external supporting system and an internal supporting system. One ends of the external supporting system and the internal supporting system are fixedly connected with the connecting holes in the arch ring beam main body, and the other ends are connected with the ground; and one end of the external support system positioned in the connecting hole is fixedly connected with the connecting piece. According to the structure, the seismic load is reduced through the external supporting system, the damage of the internal supporting system under the seismic load is reduced, and the stability of the whole dome structure is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of domes, and in particular relates to an arch-beam-cable dome structure suitable for roofs. Background Art

[0002] A dome is a curved roof structure that covers a building space. Common forms include hemispherical, elliptical, and polygonal. Its core mechanical property lies in its ability to transform the structure's deadweight and external loads into compressive stress distributed along the surface through its curved geometry. This stress is then evenly transmitted to surrounding supporting structures such as walls, columns, and arches, thereby achieving the coverage of large-span, column-free spaces.

[0003] Traditional dome support systems often utilize a single-column structure, which can only withstand compressive stresses transmitted by the arch ring. During an earthquake, the shear, tensile, and compressive forces generated by the earthquake directly act on the arch ring and are transmitted through the arch ring to the single-column support system. Due to the insufficient shear and tensile resistance of single-column structures, these combined loads can easily lead to the arch ring's initial failure, potentially damaging the supporting column structure. Summary of the Invention

[0004] In order to solve the above problems, the present invention proposes an arch-beam-cable dome structure suitable for roof.

[0005] In order to achieve the above object, the present invention proposes the following technical solutions: An arch beam cable dome structure suitable for a roof, comprising an arch ring beam assembly, a plurality of cable assemblies and a plurality of side beam support assemblies; The arch ring beam assembly includes: Arch ring beam body; A plurality of connection holes are provided on the main body of the arch ring beam and are arranged in one-to-one correspondence with the plurality of cable assemblies or the plurality of side beam support assemblies; The cable components include: A connecting piece, one end of which is located in the connecting hole; A steel cable, one end of which is fixedly connected to the connecting piece, and the other end of which is fixedly connected to the anchor load-bearing member on the roof; The side beam support assembly includes: an external support system and an internal support system; one end of the external support system is fixedly connected to the connecting piece and the other end is connected to the ground; one end of the internal support system is fixedly connected to the connecting hole and is not fixedly connected to the connecting piece, and the other end is connected to the ground.

[0006] The external support system is rigidly connected to the cable assembly via connectors, directly bearing the horizontal seismic forces transmitted by the cable tension. Because the connectors are embedded in the connection holes of the arch ring beam, the external supports can be considered the "lateral force-resisting skeleton" of the structure's periphery. Similar to shear walls in traditional frame structures, they are the first to bear the initial horizontal shear forces of an earthquake, limiting the out-of-plane displacement of the arch ring beam and preventing cable breakage due to excessive stretching. Their axial rigidity effectively inhibits horizontal slip of the arch ring beam and progressively transmits horizontal forces to the foundation, forming a force transmission path of "cables, connectors, external supports, and ground." The internal support system, instead of connectors, is directly connected to the connection holes of the arch ring beam, forming a second horizontal support independent of the cable assembly. When ground motion has an eccentric component, the internal supports provide a counteracting horizontal force inside the arch ring beam, balancing the forces acting on the external supports and reducing structural torsion. This creates a "soft exterior, hard interior" stiffness distribution, dissipating seismic forces gradually from the periphery to the center, preventing premature plastic deformation of the peripheral cable assembly.

[0007] Furthermore, the external support system includes: A first connecting column, one end of which is located in the connecting hole and is fixedly connected to the connecting piece; A first node shaft, fixedly connected to the other end of the first connecting column; Two third connecting columns, one end of which is fixedly connected to the first node axis; A third node shaft is fixedly connected to the other end of the third connecting column; The upper ends of the two second support columns are fixedly connected to the third node axis, and the lower ends are inserted below the ground.

[0008] Furthermore, the internal support system includes: A second connecting column, one end of which is fixedly connected to the corresponding connecting hole and does not contact the first node axis; A second node shaft is fixedly connected to the other end of the second connecting column; The first support column has an upper end fixedly connected to the second node axis and a lower end inserted below the ground; and does not contact the third node axis.

[0009] Furthermore, two first connecting columns are provided.

[0010] Furthermore, the shape of the arch ring beam body is annular, and there are 8 connection holes in total, and the connection holes are arranged in an array along the circumference of the arch ring beam body.

[0011] The above technical solutions can achieve the following beneficial effects: This solution designs an external support system and directly connects it to the cable assembly. Under seismic loads, shear and tensile forces are transmitted through the external support system, thereby utilizing the external support system to reduce seismic loads. As the first line of defense, the internal support system bears static loads and does not directly participate in the dynamic force transmission of seismic motion. It is indirectly transmitted through the overall vibration of the structure, so the force amplitude is much smaller than that of the external system. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the entire structure; Figure 2 It is a structural diagram of the side beam support assembly when assembled; Figure 3 This is an exploded view of the edge beam support assembly.

[0013] 1. Arch ring beam assembly; 11. Arch ring beam body; 12. Connection hole; 2. Cable assembly; 21. Connector; 22. Anchor load-bearing member; 3. Side beam support assembly; 31. First connecting column; 32. First node axis; 33. Second connecting column; 34. Second node axis; 35. Third connecting column; 36. Third node axis; 37. First support column; 38. Second support column. DETAILED DESCRIPTION

[0014] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0015] like Figure 1 As shown, an arch-beam-cable dome structure suitable for roof covering includes an arch ring beam assembly 1, a plurality of cable assemblies 2 and a plurality of side beam support assemblies 3.

[0016] The structure of the arch ring beam assembly 1 is as follows: The arch ring beam body 11 is a circular member, and its axis is arranged vertically.

[0017] The arch ring beam body 11 is provided with N connection holes 12, which pass through the inner and outer side surfaces of the arch ring beam body 11. In this embodiment, the axes of the connection holes 12 are arranged radially along the arch ring beam body 11. The N connection holes 12 are distributed in a circular array along the axis of the arch ring beam body 11. In this embodiment, the number of connection holes 12 is 8.

[0018] A steel cable (not shown) is fixedly connected to a connector 21 at one end and to a corresponding anchor member 22 in the roof structure at the other end. Under gravity load, it is tensioned. The upper surface of the connection hole 12 forms a supporting contact surface with the connector 21. The load-bearing system formed by the connector 21 and the steel cable supports the arch ring beam 11.

[0019] The side beam support assembly 3 includes: One end of the first connecting column 31 is embedded in the connecting hole 12. In order to enhance the structural support rigidity, two first connecting columns 31 are set in the same connecting hole 12. The same end of the two first connecting columns 31 is inserted in the same connecting hole 12, and the end is rigidly connected to the connecting piece 21 by welding, and is not welded to the connecting hole 12.

[0020] The first node shaft 32 is welded to the other ends of the two first connecting columns 31 to form a rigid node; The second connecting column 33 has one end embedded in the connecting hole 12 together with the two first connecting columns 31, with the two first connecting columns 31 on top and arranged side by side, and the second connecting column 33 on the bottom; and is welded and fixed to the arch ring beam body 11; at the position of the first node axis 32 in space, the first node axis 32 is located above the second connecting column 33 and does not contact the second connecting column 33.

[0021] The second node shaft 34 is welded to the other end of the second connecting column 33 to form a rigid node; The two third connecting columns 35 have one end welded to the first nodal axis 32 and the other end welded to the third nodal axis 36. At the position of the second nodal axis 34 in space, the second nodal axis 34 is located above the third connecting columns 35 and does not contact the third connecting columns 35.

[0022] The third node shaft 36 is welded to the other ends of the two third connecting columns 35 to form a rigid node; First support column 37 is located between the two third connecting columns 35. Its upper end is welded to second nodal axis 34, and its lower end is buried approximately 1.5 meters deep. At the spatial location of third nodal axis 36, third nodal axis 36 is located above first support column 37 and does not contact it.

[0023] The upper ends of the two second support columns 38 are welded to the third node axis 36, and the lower ends are buried at a depth of about 1.5 meters.

[0024] Among them, the two first connecting columns 31, the first node axis 32, the two third connecting columns 35, the third node axis 36, and the two second support columns 38 constitute an external support system; the second connecting column 33, the second node axis 34, and the first support column 37 constitute an internal support system.

[0025] During an earthquake, the cable assembly 2 will be disturbed by the seismic waves. Since the steel cable is a flexible structure, the cable assembly 2 will produce large vibrations and shaking, which will be transmitted to the connector. Since the connector is directly connected to the external support system, the external support system becomes the transmission path of the seismic load. The external support system bears complex seismic loads. During an earthquake, the horizontal inertial force is transmitted to the connector 21 through the change in the steel cable tension, and a complete force transmission chain is formed through the first connecting column 31, the first node axis 32, the third connecting column 35, the third node axis 36, and the second support column 38, so that the external support system bears alternating tensile and compressive loads and node shear forces. The earthquake energy dissipation is achieved through the elastic-plastic deformation of the external support system (the material of the external support system is ductile steel such as Q235B), effectively reducing the seismic response of the main structure.

[0026] The internal support system is rigidly connected to the main arch ring beam via second connecting columns 33, primarily bearing the constant compressive load generated by the structure's own weight. Under seismic loads, the internal support system is primarily transmitted through the vibration of the entire structure, which exerts minimal force on the internal support system and limits its destructive potential.

[0027] This solution uses an external support system to bear the shear force, tension force, etc. of the earthquake load, thereby protecting the arch ring beam body 11 and the internal support system, and ensuring the safety and stability of the arch beam cable dome structure.

[0028] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. An arch beam cable dome structure suitable for roof, characterized in that: It includes an arch ring beam assembly, a plurality of cable assemblies and a plurality of edge beam support assemblies; The arch ring beam assembly includes: Arch ring beam body; A plurality of connection holes are provided on the main body of the arch ring beam and are arranged in one-to-one correspondence with the plurality of cable assemblies or the plurality of side beam support assemblies; The cable components include: A connecting piece, one end of which is located in the connecting hole; A steel cable, one end of which is fixedly connected to the connecting piece, and the other end of which is fixedly connected to the anchor load-bearing member on the roof; The side beam support assembly includes: an external support system and an internal support system; one end of the external support system is fixedly connected to the connecting piece and the other end is connected to the ground; one end of the internal support system is fixedly connected to the connecting hole and is not fixedly connected to the connecting piece, and the other end is connected to the ground.

2. The arch-beam-cable dome structure suitable for roof according to claim 1, characterized in that: The external support system includes: A first connecting column, one end of which is located in the connecting hole and is fixedly connected to the connecting piece; A first node shaft, fixedly connected to the other end of the first connecting column; Two third connecting columns, one end of which is fixedly connected to the first node axis; A third node shaft is fixedly connected to the other end of the third connecting column; The upper ends of the two second support columns are fixedly connected to the third node axis, and the lower ends are inserted below the ground.

3. The arch-beam-cable dome structure suitable for roof according to claim 1, characterized in that: The internal support system includes: A second connecting column, one end of which is fixedly connected to the corresponding connecting hole and does not contact the first node axis; A second node shaft is fixedly connected to the other end of the second connecting column; The first support column has an upper end fixedly connected to the second node axis and a lower end inserted below the ground; and does not contact the third node axis.

4. The arch-beam-cable dome structure suitable for roof according to claim 2, characterized in that: There are two first connecting columns.

5. The arch-beam-cable dome structure suitable for roof according to claim 2, characterized in that: The shape of the arch ring beam body is annular, and there are 8 connection holes in total, and each connection hole is arranged in an array along the circumference of the arch ring beam body.

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