Ring cable fork tube arch supporting reticulated shell structure

Abstract

The utility model discloses an endless cable forked tube arch support reticulated shell structure, which comprises a main structure and subunits, the main structure comprises a plurality of arc radial arches which are radially arranged from the center to the periphery, the lower ends of the radial arches are fixed on a support column pier, the middle lower parts of the adjacent radial arches are tied through a prestressed stay cable to form endless cables, and the endless cables are connected with the subunits. The lower part is welded and connected through an outer ring rod piece to form an outer ring component; the subunits are fork-barrel-shaped net shell subunits and are arranged between the adjacent radial arches respectively. In the prior art, a single-layer latticed shell structure is prone to instability damage, instability of any point can cause damage and failure of the whole structure, a main structure is added, the whole structure cannot be damaged and failed even if the subunits fail, and the reliability of the structure is improved. The forked cylindrical net shell subunits generate arched stress which is better than spherical stress, so that the same bearing capacity can be achieved by using less steel. The ring rope enables the structure to be self-balanced and can adapt to certain changes of the outside, and structural safety is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically to a ring cable fork tube arch support shell structure. Background Technology

[0002] A reticulated shell structure is a spatial truss structure in which members are arranged in a grid according to a certain pattern. This grid forms the spatial framework of the shell, combining the characteristics of both a truss system and a shell. Its force transmission characteristic is mainly achieved by transmitting tension, compression, or shear forces node by node through the members, making it suitable for large-span buildings. However, traditional reticulated shell structures have relatively weak out-of-plane stability, making it difficult to balance structural reliability with feasible economic requirements.

[0003] To address this, Chinese invention patent CN101906815A provides a cable-stayed arch shell structure, comprising a grid shell, an arch, struts, radial tie rods, and circumferential cables. Some members of the grid shell structure are replaced with the arch, and vertical struts, radial tie rods, and circumferential cables are installed at the lower part of the grid shell structure to form a cable-stayed arch shell structure. The grid shell, employing a single-layer spherical grid shell, a single-layer elliptical spherical shell, a double-layer spherical grid shell, or a double-layer elliptical spherical shell, improves the stability of the grid shell structure to a certain extent.

[0004] However, in the above scheme, the reticulated shell structure is prone to instability and failure, which is not conducive to the overall stability of the reticulated shell structure.

[0005] Therefore, it is necessary to improve the existing arch-supported reticulated shell structure system to enhance the reliability of the structure and ensure its safety. Utility Model Content

[0006] The technical problem to be solved by this utility model is that existing arched reticulated shell structures are prone to instability and damage.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A ring-cable fork-tube arch-supported reticulated shell structure, comprising:

[0009] The main structure includes multiple arc-shaped radial arches arranged radially from the center outwards. The lower ends of the radial arches are fixed to the support columns. The middle and lower parts of adjacent radial arches are connected by prestressed cables to form a ring cable. The lower parts of adjacent radial arches are welded together by outer ring members to form an outer ring component.

[0010] The fork-shaped reticulated shell sub-units are respectively disposed between each adjacent radial arch.

[0011] In the above technical solution, preferably, the loop is configured as one or more loops.

[0012] In the above technical solution, preferably, the upper ends of the multiple radial arches converge at a single point.

[0013] In the above technical solution, preferably, it also includes an inner ring component, which is formed by welding multiple inner ring rods into a ring, and the upper end of each radial arch is welded and fixed to the inner ring component.

[0014] In the above technical solution, preferably, the inner ring component and the outer ring component are in the form of regular polygons, and the radial arch is welded and fixed to the vertices of the polygons of the inner ring component and the outer ring component respectively.

[0015] In traditional technology, single-layer reticulated shell structures are prone to instability and failure. Instability at any point can lead to the failure of the entire structure. This utility model adds a main structure, which is stronger than the members of conventional reticulated shell structures, ensuring higher load-bearing capacity than the sub-units. Even if the sub-units fail, the entire structure will not fail, thus improving the reliability of the structure.

[0016] The forked cylindrical shell unit generates an arched force. In this state, the steel pipe component is more advantageous than the spherical one, and the same load-bearing capacity can be achieved with less steel.

[0017] The ring cables enable the structure to self-balance. Even if external changes occur, such as temperature changes causing changes in the distance between supports, or uneven settlement of supports, the reticulated shell structure of this utility model can adapt and ensure structural safety. Attached Figure Description

[0018] Figure 1 This is a perspective view of the ring cable fork tube arch support shell structure of this utility model;

[0019] Figure 2 This is a top view of the ring cable fork tube arch support shell structure of this utility model;

[0020] Figure 3 This is a side view of the ring cable fork tube arch support shell structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the mesh shell unit of this utility model.

[0022] in, Figures 1 to 4 The correspondence between the names of the components and the reference numerals in the attached drawings is as follows:

[0023] Inner ring component 1, radial arch 2, outer ring component 3, support column pier 4, fork-shaped grid shell sub-unit 5, ring cable 6, cross rod 51, edge sealing rod 52, support node 31. Detailed Implementation

[0024] This invention provides a ring-cable fork-tube arch-supported reticulated shell structure, which improves the stiffness of the reticulated shell sub-units, reduces the structural sensitivity, delays the buckling of the sub-units, and improves the overall stability and safety of the structure with a small increase in material usage. The invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1 , Figure 2 , Figure 3 As shown, the ring cable fork-shaped arch support shell structure provided by this utility model includes a main structure composed of a radial arch 2 and a ring cable 6, as well as a fork-shaped shell sub-unit 5.

[0026] Specifically, the main structure includes multiple arc-shaped radial arches 2 arranged radially from the center outwards. Each radial arch 2 uses enlarged reinforced steel pipes with a diameter and wall thickness greater than the intersecting members 51 in the forked cylindrical reticulated shell subunit 5. Each radial arch 2 divides the reticulated shell structure into several identical subunits. The lower ends of the radial arches 2 are fixed to the support column piers 4. The middle and lower parts of adjacent radial arches are connected by prestressed cables to form a ring cable 6. The lower parts of adjacent radial arches are welded together by outer ring members to form an outer ring member 3.

[0027] Forked cylindrical shell sub-units 5 are respectively set between each adjacent radial arch 2.

[0028] In this invention, the upper ends of multiple radial arches 2 can converge at a single point to form a closed mesh shell structure. Alternatively, an inner ring component 1 can be set at the center of the mesh shell structure. The inner ring component 1 is formed by welding multiple inner ring rods into a ring shape, and the upper ends of each radial arch 2 are welded and fixed to the inner ring component 1, thereby forming a mesh shell structure with a central opening at the top.

[0029] Both the inner ring component 1 and the outer ring component 3 are welded from multiple rectangular steel pipes. The outer ring component 3 is arranged around the inner ring component 1 and is located below the inner ring component 1 in the vertical direction.

[0030] The fork-shaped reticulated shell sub-units 5 are arranged between each adjacent radial arch 2, and the reticulated shell sub-units 5 together form a spherical reticulated shell shape, with a circular planar projection.

[0031] In this invention, the inner ring member 1 and the outer ring member 3 can be in the form of regular polygons, and the radial arch 2 is welded to the vertices of the polygons of the inner ring member 1 and the outer ring member 3. The ring cable 6 can be set in one or more loops, located in the middle or lower part of the radial arch 2.

[0032] like Figure 4 As shown, the fork-shaped mesh shell sub-unit 5 is formed by welding intersecting rods 51 to form a three-dimensional mesh structure, and the bottom edge of the fork-shaped mesh shell sub-unit 5 is closed by sealing rods 52 to form a closed structure. The intersecting rods 51 are made of steel pipe components.

[0033] Specifically, a support node 31 is fixedly fitted onto the radial arch 2, and the outer ring member 3 and the ring cable 6 are fixed to the support node 31.

[0034] Compared with the prior art, the ring cable fork tube arch support shell structure provided by this utility model has the following advantages:

[0035] First, in traditional technology, single-layer reticulated shell structures are prone to instability and failure. Instability at any point can lead to the failure of the entire structure. This utility model adds a main structure, which is stronger than the members of conventional reticulated shell structures, ensuring higher load-bearing capacity than the sub-units. Even if the sub-units fail, the entire structure will not fail, thus improving the reliability of the structure.

[0036] Secondly, the forked cylindrical shell unit in this utility model generates an arched force. In this state, the steel pipe component is more advantageous than the spherical force, and the same load-bearing capacity can be achieved with less steel.

[0037] Third, the present invention employs ring cables to enable the structure to self-balance. That is, even if certain external changes occur, such as temperature changes causing changes in the distance between the supports, or uneven settlement of the supports, the reticulated shell structure of the present invention can adapt to ensure structural safety.

[0038] This utility model is not limited to the above-described preferred embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model.

Claims

1. A ring-cable fork-tube arch-supported reticulated shell structure, characterized in that, include: The main structure includes multiple arc-shaped radial arches arranged radially from the center outwards. The lower ends of the radial arches are fixed to the support columns. The middle and lower parts of adjacent radial arches are connected by prestressed cables to form a ring cable. The lower parts of adjacent radial arches are welded together by outer ring members to form an outer ring component. The fork-shaped reticulated shell sub-units are respectively disposed between each adjacent radial arch.

2. The ring-cable fork-tube arch-supported reticulated shell structure according to claim 1, characterized in that, The loop cable is configured to have one or more loops.

3. The ring-cable fork-tube arch-supported reticulated shell structure according to claim 1, characterized in that, The upper ends of the multiple radial arches converge at a single point.

4. The ring-cable fork-tube arch-supported reticulated shell structure according to claim 1, characterized in that, It also includes an inner ring component, which is formed by welding multiple inner ring rods into a ring, and the upper end of each of the radial arches is welded and fixed to the inner ring component.

5. The ring-cable fork-tube arch-supported reticulated shell structure according to claim 4, characterized in that, The inner ring component and the outer ring component are in the form of regular polygons, and the radial arches are welded and fixed to the vertices of the polygons of the inner ring component and the outer ring component, respectively.

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