A hyperbolic circular arc wooden dome system

Abstract

The utility model belongs to building structure technical field discloses a kind of hyperbolic circular arc wooden dome system, and the dome system is hemispherical structure, and the dome system includes weft beam and warp beam, node connecting device, flange and foundation ring beam;The weft beam is by multiple weft circular arc rods and is combined into annular structure with tail end joint, and the warp beam is by multiple warp circular arc rods and is combined into arc structure with tail end joint, and the end of adjacent weft circular arc rod and the end of adjacent warp circular arc rod are all spliced by node connecting device, and the weft beam and warp beam are crossed and connected by node connecting device to form multiple independent squares.This scheme's hyperbolic circular arc wooden dome system, the flexible assembly of warp beam and weft beam is realized by central spherical hinge node connecting device, allow rod piece to rotate moderately in construction and stress process, release local stress, improve structural seismic performance.

Description

Technical Field

[0001] This utility model relates to the field of building structure technology, specifically to a hyperbolic arc wooden dome system. Background Technology

[0002] In recent years, with the development of green building and sustainable structures, large-span wooden spatial structures have attracted much attention due to their environmental friendliness, lightweight yet high strength, and excellent aesthetic appeal. Wooden domes, as a classic spatial structure, are widely used in stadiums, exhibition centers, and ecological buildings.

[0003] However, traditional wooden dome structures often employ rigid joints or simple mortise and tenon connections. Rigid joints can lead to cracking of the wood due to restricted deformation, reducing structural durability. Furthermore, rigid joints struggle to balance the bending moment and shear force transfer requirements of the dome under load, easily causing localized stress concentration and affecting overall stability. Additionally, existing wooden dome connections largely rely on custom-made metal components, requiring strict control of angles and positions during on-site assembly, resulting in significant construction difficulties and long construction periods. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a hyperbolic arc wooden dome system.

[0005] To address the problems in the background technology, this utility model adopts the following technical solution: A hyperbolic arc wooden dome system, the dome system being a hemispherical structure, the dome system comprising latitudinal beams and longitudinal beams, node connection devices, flanges and foundation ring beams; The weft beam is a ring structure composed of multiple weft arc rods connected end to end, and the warp beam is an arc structure composed of multiple warp arc rods connected end to end. The ends of adjacent weft arc rods and adjacent warp arc rods are spliced ​​together by a node connection device. The weft beam and the warp beam are cross-connected by the node connection device to form multiple independent squares. The top end of the warp beam is fixedly connected to the flange by high-strength bolts, and the bottom end of the warp beam is fixed to the foundation ring beam. The node connection device includes a central ball joint, on which a latitudinal connecting arm and a radial connecting arm are hinged. The latitudinal connecting arm is assembled with a latitudinal arc rod, and the radial connecting arm is assembled with a longitudinal arc rod.

[0006] As a further description of the above technical solution: the curvature of the latitudinal connecting arm matches the latitudinal beam, and the curvature of the radial connecting arm matches the warp beam.

[0007] As a further description of the above technical solution: the latitudinal connecting arm and the radial connecting arm have the same structure, and the ends of the latitudinal connecting arm and the radial connecting arm are provided with matching slots. The ends of the latitudinal arc rod and the longitudinal arc rod are embedded in the slots. Fastening bolts are provided on the latitudinal connecting arm and the radial connecting arm, and the latitudinal arc rod and the longitudinal arc rod are fastened to the latitudinal connecting arm and the radial connecting arm by fastening bolts.

[0008] As a further description of the above technical solution: an elastic damping layer is adhered to the inner wall of the card slot, and the elastic damping layer is made of rubber or polyurethane.

[0009] As a further description of the above technical solution: the flange is an annular steel plate, and the outer side of the flange is provided with an arc-shaped groove that matches the top of the warp beam. The top of the warp beam is inserted into the arc-shaped groove and radially fixed by high-strength bolts.

[0010] As a further description of the above technical solution: the foundation ring beam is a prestressed concrete structure, the top surface of the foundation ring beam is pre-embedded with pull-out anchor bolts, and the bottom end of the meridian beam is provided with anchoring holes corresponding to the pull-out anchor bolts.

[0011] Compared with existing technologies, the advantages of this utility model are: I. The hyperbolic arc wooden dome system in this scheme achieves flexible assembly of the warp and weft beams through a central ball joint connection device, allowing the members to rotate moderately during construction and under stress, releasing local stress and improving the seismic performance of the structure.

[0012] Second, this solution significantly reduces construction difficulty and improves installation efficiency by using standardized weft and warp arc rod units combined with reusable node components.

[0013] Third, by using hyperbolic arc members to form a spatial grid structure, the load is evenly distributed to the foundation ring beam, reducing timber waste and improving material utilization. Attached Figure Description

[0014] Figure 1 This is one of the structural schematic diagrams of this utility model; Figure 2 This is the second structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the node connection device of this utility model.

[0015] Explanation of the labels in the diagram: 1. Weft beam; 11. Weft circular arc bar; 2. Warp beam; 21. Warp circular arc bar; 3. Node connection device; 31. Central ball joint; 32. Weft connecting arm; 33. Radial connecting arm; 34. Slot; 35. Fastening bolt; 36. Elastic damping layer; 4. Flange; 41. Arc groove; 5. Foundation ring beam; 51. Pull-out anchor bolt. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-3 A hyperbolic arc wooden dome system is described. The dome system has a hemispherical structure, and its hemispherical geometry optimizes the utilization of internal space. The dome system includes longitudinal beams 1 and longitudinal beams 2, node connection devices 3, flanges 4, and a foundation ring beam 5. The top of the longitudinal beams 2 is fixedly connected to the flanges 4 with high-strength bolts, and the bottom of the longitudinal beams 2 is fixed to the foundation ring beam 5 with pull-out anchors. The weft beam 1 is a ring structure composed of multiple weft circular arc rods 11 connected end to end, and the warp beam 2 is an arc structure composed of multiple warp circular arc rods 21 connected end to end. The ends of adjacent weft circular arc rods 11 and adjacent warp circular arc rods 21 are spliced ​​together by node connection device 3. The weft beam 1 and the warp beam 2 are cross-connected by node connection device 3 to form multiple independent squares.

[0018] In this embodiment, the hyperbolic grid structure composed of the meridian beam 2 and the parallel beam 1 can evenly distribute the load through independent square units, forming a spatially coordinated force-bearing system, significantly improving the overall stiffness and stability of the dome. Specifically, the parallel beam 1 and the meridian beam 2 adopt a standardized member design with their ends connected, and in conjunction with the prefabricated node connection device 3, the on-site assembly process is greatly simplified, the construction period is shortened, and construction errors are reduced. Specifically, the node connection device 3 includes a central ball joint 31, on which a lateral connecting arm 32 and a radial connecting arm 33 are hinged. The ball joint node allows for ±5° rotational adjustment. The lateral connecting arm 32 is assembled with the lateral arc rod 11, and the radial connecting arm 33 is assembled with the longitudinal arc rod 21.

[0019] In this embodiment, the hinged design of the central ball joint 31 and the multi-directional connecting arm realizes three-dimensional degree of freedom displacement compensation, effectively releases stress concentration between members, avoids the stress concentration problem that is easy to occur in traditional rigid nodes, and enhances the seismic resistance of the structure.

[0020] The curvature of the latitudinal connecting arm 32 matches that of the latitudinal beam 1, and the curvature of the radial connecting arm 33 matches that of the longitudinal beam 2. The latitudinal / radial connecting arms adopt a curvature design that matches the corresponding beams, achieving a precise geometric fit, effectively eliminating assembly gaps, making the load transfer path more reasonable, avoiding stress concentration, and improving the overall structural load-bearing capacity.

[0021] The weft connecting arm 32 and the radial connecting arm 33 have the same structure. Both arms have matching slots 34 at their ends. The ends of the weft arc rod 11 and the warp arc rod 21 are embedded in the slots 34. Fastening bolts 35 are provided on both arms, and the weft arc rod 11 and the warp arc rod 21 are fastened to them by the fastening bolts 35. The embedded installation method using the slots 34 shortens the construction cycle compared to traditional welding processes. The design of the fastening bolts 35 enables reversible connection, supporting quick disassembly and maintenance. Furthermore, an elastic damping layer 36, made of rubber or polyurethane, is adhered to the inner wall of the slots 34, providing excellent thermal deformation compensation capabilities.

[0022] Specifically, flange 4 is a ring-shaped steel plate. An arc-shaped groove 41, matching the top of the meridian beam 2, is provided on the outer side of flange 4. The top of the meridian beam 2 is inserted into the arc-shaped groove 41 and radially fixed using high-strength bolts. Foundation ring beam 5 is a prestressed concrete structure. Pull-out anchors 51 are pre-embedded on the top surface of foundation ring beam 5, and anchoring holes corresponding to the pull-out anchors 51 are provided at the bottom of the meridian beam 2. The high-strength anchoring system of flange 4 and foundation ring beam 5 ensures the stability of the boundary conditions at the bottom of the dome, and the design of the pull-out anchors 51 further strengthens the vertical load transfer path.

[0023] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A hyperbolic arc wooden dome system, characterized in that: The dome system is a hemispherical structure, and the dome system includes a parallel beam (1) and a longitude beam (2), a node connection device (3), a flange (4) and a foundation ring beam (5). The latitude beam (1) is a ring structure composed of multiple latitude arc rods (11) connected end to end. The longitude beam (2) is an arc structure composed of multiple longitude arc rods (21) connected end to end. The ends of adjacent latitude arc rods (11) and adjacent longitude arc rods (21) are spliced ​​together by a node connection device (3). The latitude beam (1) and the longitude beam (2) are cross-connected by the node connection device (3) to form multiple independent squares. The top end of the warp beam (2) is fixedly connected to the flange (4) by high-strength bolts, and the bottom end of the warp beam (2) is fixed to the foundation ring beam (5); The node connection device (3) includes a central ball joint (31), on which a latitudinal connecting arm (32) and a radial connecting arm (33) are hinged. The latitudinal connecting arm (32) is assembled with a latitudinal arc rod (11), and the radial connecting arm (33) is assembled with a longitudinal arc rod (21).

2. The hyperbolic arc wooden dome system according to claim 1, characterized in that: The curvature of the latitudinal connecting arm (32) matches that of the latitudinal beam (1), and the curvature of the radial connecting arm (33) matches that of the longitudinal beam (2).

3. The hyperbolic arc wooden dome system according to claim 2, characterized in that: The latitudinal connecting arm (32) and the radial connecting arm (33) have the same structure. The ends of the latitudinal connecting arm (32) and the radial connecting arm (33) are provided with matching slots (34). The ends of the latitudinal arc rod (11) and the longitudinal arc rod (21) are embedded in the slots (34). Fastening bolts (35) are provided on the latitudinal connecting arm (32) and the radial connecting arm (33). The latitudinal arc rod (11) and the longitudinal arc rod (21) are fastened to the latitudinal connecting arm (32) and the radial connecting arm (33) by means of the fastening bolts (35).

4. The hyperbolic arc wooden dome system according to claim 3, characterized in that: The inner wall of the slot (34) is covered with an elastic damping layer (36), which is made of rubber or polyurethane.

5. A hyperbolic arc wooden dome system according to claim 1, characterized in that: The flange (4) is an annular steel plate. The outer side of the flange (4) is provided with an arc-shaped groove (41) that matches the top of the warp beam (2). The top of the warp beam (2) is inserted into the arc-shaped groove (41) and radially fixed by high-strength bolts.

6. The hyperbolic arc wooden dome system according to claim 1, characterized in that: The foundation ring beam (5) is a prestressed concrete structure. The top surface of the foundation ring beam (5) is pre-embedded with pull-out anchor bolts (51), and the bottom end of the meridian beam (2) is provided with anchoring holes corresponding to the pull-out anchor bolts (51).

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