Pentagonal sequence multi-strut hybrid cable dome structure

Abstract

The application discloses a pentagon sequence multi-strut hybrid cable dome structure. The prior art has the problems of great construction difficulty and complex node structure. The application comprises two types of pentagon space basic units, inner ring cables and outer ring beams. The space basic units are divided into two types of space three-dimensional pentagons, i.e. normal pentagons and upside-down pentagons. The normal pentagons have three struts and two diagonal cables, and the upside-down pentagons have four struts and one diagonal cable. In addition, the two types of pentagons both have four upper chord ridge cables, one upper chord ring member and one lower chord ring cable segment. In the space basic unit, one end of the struts and the diagonal cables is connected to the upper chord ridge cable node, and the other end is connected to the same lower chord node. The same type of space basic units are extended along the ring direction to form two types of ring directional substructures, and the same circle lower chord ring cable segments are connected to form the lower chord ring cable. The two types of ring directional substructures are alternately extended along the radial direction, the bottom ring directional substructure is supported on the outer ring beam, and the top is provided with the inner ring cable. The application has the advantages of stable structure, simple and beautiful building shape and strong space effect.

Description

Technical Field

[0001] This invention belongs to the field of architectural technology, specifically relating to a pentagonal sequence multi-strut hybrid cable dome structure. Background Technology

[0002] Cable dome structures possess excellent load-bearing performance, beautiful structural design, and outstanding economic indicators. Current research and practice are based on the Fuller concept of "an ocean of cables and an island of compression members," meaning that each upper and lower chord node within the cable dome has only one vertical compression member to form a pressure "island" in the tension field. Since the horizontal projection of the compression member is a point, the projections of the same ring of compression members form a point loop; that is, the compression members are perpendicular to the horizontal plane and not connected to each other, resulting in poor stability. Especially in rib-ring cable dome structures, the upper chord nodes lack circumferential members for restraint, leading to significant deficiencies in both torsional stiffness and stability. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention proposes a pentagonal sequence multi-strut hybrid cable dome structure based on the unconventional Fuller concept of "an ocean of cables and an island of struts".

[0004] The cable dome structure of the present invention is composed of 2 to 5 concentric circumferential substructures, including an inner ring cable, an outer ring beam, and at least one upright pentagonal circumferential substructure and one inverted pentagonal circumferential substructure.

[0005] The aforementioned regular pentagonal circumferential substructure is a ring shape, composed of multiple regular pentagonal spatial basic units with the same structure and specifications connected in series. The regular pentagonal spatial basic unit includes a regular ridge cable top node, two regular ridge cable side nodes, two regular ridge cable bottom nodes, and a three-strut lower chord node, as well as four regular upper chord ridge cables, one regular upper chord circumferential member, three regular unit struts, and a pair of bifurcated diagonal cables.

[0006] One upright ridge cable top node and two upright ridge cable side nodes are located in the first plane. The upright ridge cable top node is connected to the two upright ridge cable side nodes respectively through two upright ridge cable top chords of the same length. The two upright ridge cable side nodes and two upright ridge cable bottom nodes are located in the second plane. The two upright ridge cable side nodes are connected to the two upright ridge cable bottom nodes respectively through two upright ridge cable top chords of the same length. The two upright ridge cable bottom nodes are connected by upright ridge cable top chord circumferential members. The first plane and the second plane form a folded surface with a horizontal projection of a pentagon. The three-strut lower chord node is located below this folded surface and within the pentagonal projection range. The three-strut lower chord node is connected to the two upright ridge cable side nodes respectively through two upright unit struts of the same length, connected to the two upright ridge cable bottom nodes respectively through two bifurcated diagonal cables of the same length, and connected to the upright ridge cable top node through another upright unit strut.

[0007] The lower chord nodes of the three struts of multiple regular pentagonal spatial basic units are connected sequentially through the regular unit ring cable segments. Two adjacent regular pentagonal spatial basic units share a regular ridge cable side node. The nodes corresponding to the multiple regular pentagonal spatial basic units that form a regular pentagonal circumferential substructure are located on the same circumference.

[0008] The inverted pentagonal circumferential substructure is a ring-shaped structure composed of multiple inverted pentagonal spatial basic units of the same structure and specifications connected in series. It includes an inverted ridge cable top node, two inverted ridge cable side nodes, two inverted ridge cable bottom nodes, and a four-strut lower chord node, as well as four inverted upper chord ridge cables, one inverted upper chord circumferential cable, four inverted unit struts, and one independent inclined cable.

[0009] Two inverted ridge cable side nodes and two inverted ridge cable bottom nodes are located in the third plane. The two inverted ridge cable side nodes are connected to the two inverted ridge cable bottom nodes through two inverted ridge cable bottom nodes of the same length. The two inverted ridge cable bottom nodes are connected through inverted ridge cable bottom circumferential cables. One inverted ridge cable top node and two inverted ridge cable side nodes are located in the fourth plane. The inverted ridge cable top node is connected to the two inverted ridge cable side nodes through two inverted ridge cable bottom chords of the same length. The third plane and the fourth plane form a folded surface with a horizontal projection of a pentagon. The four-strut lower chord node is located below this folded surface and within the pentagonal projection range. The four-strut lower chord node is connected to the two inverted ridge cable side nodes through two inverted unit struts of the same length, and to the two inverted ridge cable bottom nodes through two inverted unit struts of the same length. It is also connected to the inverted ridge cable top node through an independent inclined cable.

[0010] The four-strut lower chord nodes of multiple inverted pentagonal spatial basic units are connected sequentially through inverted unit ring cable segments, and two adjacent inverted pentagonal spatial basic units share one inverted ridge cable side node; the nodes corresponding to multiple inverted pentagonal spatial basic units that constitute an inverted pentagonal circumferential substructure are located on the same circumference.

[0011] The upright pentagonal toroidal substructures and the inverted pentagonal toroidal substructures are arranged alternately along the radial direction of the cable dome structure as a whole.

[0012] Furthermore, multiple upright unit ring cable segments are integrated into one piece, and / or multiple inverted unit ring cable segments are integrated into one piece, forming a complete ring-shaped lower chord ring cable.

[0013] Furthermore, for upright and inverted pentagonal toroidal substructures in the same radial direction, if the upright pentagonal toroidal substructure is located in the inner ring and the inverted pentagonal toroidal substructure is located in the outer ring, then adjacent upright and inverted pentagonal toroidal substructures share two spine bottom nodes and one upper chord toroidal cable. That is, the upright spine bottom node of the upright pentagonal toroidal substructure and the inverted spine bottom node of the corresponding inverted pentagonal toroidal substructure are the same node. The upright upper chord toroidal component of the upright pentagonal toroidal substructure uses an upright upper chord toroidal cable, which is the same toroidal cable as the inverted upper chord toroidal cable of the inverted pentagonal toroidal substructure.

[0014] Furthermore, for upright and inverted pentagonal toroidal substructures in the same radial direction, if the inverted pentagonal toroidal substructure is located in the inner ring and the upright pentagonal toroidal substructure is located in the outer ring, then adjacent inverted pentagonal toroidal substructures and upright pentagonal toroidal substructures share a spine top node, that is, the upright spine top node of the upright pentagonal toroidal substructure and the inverted spine top node of the inverted pentagonal toroidal substructure are the same node.

[0015] Furthermore, if the innermost ring of the cable dome structure is a regular pentagonal ring substructure, then the top nodes of the regular ridge cables of the adjacent regular pentagonal spatial basic units constituting the regular pentagonal ring substructure are connected through the inner ring cable segments, and the inner ring cable segments are connected end to end to form the inner ring cable.

[0016] Furthermore, if the innermost ring of the cable dome structure is an inverted pentagonal circumferential substructure, then the bottom nodes of the inverted ridge cables of the adjacent inverted pentagonal spatial basic units constituting the inverted pentagonal circumferential substructure are connected through the inner ring cable segments. The inner ring cable segments are alternately connected end to end with the inverted upper chord circumferential cables to form the inner ring cable.

[0017] Furthermore, the inner ring cable is a single unit, meaning that the entire ring-shaped inner ring cable connects the top node of the upright spine cable or the bottom node of the inverted spine cable.

[0018] Furthermore, if the outermost ring of the cable dome structure is a regular pentagonal ring substructure, then the bottom nodes of the regular ridge cables of the adjacent regular pentagonal spatial basic units constituting the regular pentagonal ring substructure are connected by the outer ring beam segments. The regular upper chord ring members of the regular pentagonal ring substructure adopt regular upper chord ring beams, which are alternately connected end to end with the outer ring beam segments to form the outer ring beams.

[0019] Furthermore, if the outermost ring of the cable dome structure is an inverted pentagonal ring substructure, then the top nodes of the inverted ridge cables of the adjacent inverted pentagonal spatial basic units constituting the inverted pentagonal ring substructure are connected through the outer ring beam segments, and the outer ring beam segments are connected end to end to form the outer ring beam.

[0020] Furthermore, the outer ring beam is a single unit, meaning that the entire ring-shaped outer ring beam connects the upright bottom node of the ridge cable or the inverted top node of the ridge cable.

[0021] The beneficial effects of this invention include:

[0022] 1. The building of this invention has a simple and beautiful shape and a strong spatial effect;

[0023] 2. Compared with the traditional conventional tensioned monolithic cable dome structure, the number of ring cables and inclined cables of this invention can be reduced by half, which reduces the amount of cable material used, effectively reduces the project cost, and facilitates construction and tensioning.

[0024] 3. This invention is equipped with multiple support rods, which effectively improves the stability of the support rods and the entire structure;

[0025] 4. The present invention provides a new solution for the architectural selection of cable dome structures. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the overall structure of another embodiment of the present invention;

[0028] Figure 3 A schematic diagram of a regular pentagonal toroidal substructure;

[0029] Figure 4 This is a structural diagram of a regular pentagonal spatial basic unit;

[0030] Figure 5 This is a schematic diagram of an inverted pentagonal toroidal substructure.

[0031] Figure 6 This is a structural diagram of an inverted pentagonal spatial basic unit;

[0032] Figure 7 A schematic diagram illustrating one connection method between a regular pentagonal spatial basic unit and an inverted pentagonal spatial basic unit;

[0033] Figure 8 for Figure 7 Side view;

[0034] Figure 9 This is a schematic diagram illustrating another connection method between a regular pentagonal spatial basic unit and an inverted pentagonal spatial basic unit;

[0035] Figure 10 for Figure 9 Side view;

[0036] Figure 11 This is a schematic diagram showing the positions of the planes that form the pentagonal projection fold in the basic spatial unit of a pentagon, both upright and upside down. Detailed Implementation

[0037] like Figure 1 and 2 As shown, a pentagonal sequence multi-strut hybrid cable dome structure is composed of 2 to 5 concentric circumferential substructures, including an inner ring cable 1, an outer ring beam 2, and at least one upright pentagonal circumferential substructure and one inverted pentagonal circumferential substructure. The embodiment employs one upright pentagonal circumferential substructure and one inverted pentagonal circumferential substructure.

[0038] like Figure 1 , 2 As shown in Figures 3 and 4, the regular pentagonal circumferential substructure is a ring-shaped structure composed of multiple regular pentagonal spatial basic units 3 with the same structure and specifications connected in series. The regular pentagonal spatial basic unit 3 includes a regular ridge top node 31, two regular ridge side nodes 32, two regular ridge bottom nodes 33, and a three-strut lower chord node 34, as well as four regular upper chord ridge cables 301, one regular upper chord circumferential member 302, three regular unit struts 303, and a pair of bifurcated diagonal cables 304.

[0039] A apex node 31 and two lateral nodes 32 of an orthogonal chord are located in a first plane I. The apex node 31 is connected to the two lateral nodes 32 via two orthogonal upper chords 301 of equal length. The two lateral nodes 32 and two bottom nodes 33 of an orthogonal chord are located in a second plane II. The two lateral nodes 32 are connected to the two bottom nodes 33 via two orthogonal upper chords 301 of equal length. The two bottom nodes 33 are connected via orthogonal upper chords 301. The circumferential member 302 is connected; the first plane I and the second plane II form a folded surface with a horizontal projection of a pentagon, and the lower chord node 34 of the three struts is located below the folded surface and within the pentagonal projection range; the lower chord node 34 of the three struts is connected to two side nodes 32 of the upright ridge cable respectively through two upright unit struts 303 of the same length, and is connected to two bottom nodes 33 of the upright ridge cable respectively through two bifurcated diagonal cables 304 of the same length, and is connected to the top node 31 of the upright ridge cable through another upright unit strut 303.

[0040] The three-strut lower chord nodes 34 of multiple regular pentagonal spatial basic units 3 are connected sequentially through regular unit ring cable segments 305. These multiple ring cable segments 305 can be integrated into a single, continuous ring-shaped lower chord cable. Two adjacent regular pentagonal spatial basic units 3 share a single regular ridge cable side node 32. The nodes corresponding to the multiple regular pentagonal spatial basic units 3 constituting a regular pentagonal circumferential substructure are located on the same circumference.

[0041] like Figure 1 , 2As shown in Figures 5 and 6, the inverted pentagonal circumferential substructure is a ring-shaped structure composed of multiple inverted pentagonal spatial basic units 4 with the same structure and specifications connected in series. The inverted pentagonal spatial basic unit includes an inverted spine top node 41, two inverted spine side nodes 42, two inverted spine bottom nodes 43, and a four-strut lower chord node 44, as well as four inverted upper chord spines 401, one inverted upper chord circumferential cable 402, four inverted unit struts 403, and one independent inclined cable 404.

[0042] Two inverted vertebral lateral nodes 42 and two inverted vertebral lateral nodes 43 are located in the third plane III. The two inverted vertebral lateral nodes 42 are connected to the two inverted vertebral lateral nodes 43 via two inverted upper chord vertebral cables 401 of the same length. The two inverted vertebral lateral nodes 43 are connected via inverted upper chord circumferential cables 402. One inverted vertebral apex node 41 and two inverted vertebral lateral nodes 42 are located in the fourth plane IV. The inverted vertebral apex node 41 is connected to the two inverted vertebral lateral nodes 43 via two inverted upper chord vertebral cables 401 of the same length. The ridge cable side node 42 is connected; the third plane III and the fourth plane IV form a folded surface with a horizontal projection of a pentagon, and the lower chord node 44 of the four struts is located below the folded surface and within the pentagonal projection range; the lower chord node 44 of the four struts is connected to the two inverted ridge cable side nodes 42 respectively through two inverted unit struts 403 of the same length, and is connected to the two inverted ridge cable bottom nodes 43 respectively through two inverted unit struts 403 of the same length, and is connected to the inverted ridge cable top node 41 through an independent inclined cable 404.

[0043] The four-strut lower chord nodes 44 of multiple inverted pentagonal spatial basic units 4 are connected sequentially through inverted unit ring cable segments 405. These multiple inverted unit ring cable segments 405 can be integrated into a single, continuous ring-shaped lower chord. Two adjacent inverted pentagonal spatial basic units 4 share an inverted ridge cable side node 42. The nodes corresponding to the multiple inverted pentagonal spatial basic units 4 constituting an inverted pentagonal circumferential substructure are located on the same circumference.

[0044] The upright pentagonal toroidal substructures and the inverted pentagonal toroidal substructures are arranged alternately along the radial direction of the cable dome structure as a whole. The connection method of the upright and inverted pentagonal toroidal substructures in the same radial direction is as follows:

[0045] like Figure 1 , 7As shown in Figure 8, if the upright pentagonal toroidal substructure is located in the inner ring and the inverted pentagonal toroidal substructure is located in the outer ring, then the adjacent upright pentagonal toroidal substructure and inverted pentagonal toroidal substructure share two spine bottom nodes and one upper chord toroidal cable. That is, the upright spine bottom node 33 of the upright pentagonal toroidal substructure and the corresponding inverted spine bottom node 43 of the inverted pentagonal toroidal substructure are the same node. The upright upper chord toroidal member 302 of the upright pentagonal toroidal substructure adopts an upright upper chord toroidal cable, which is the same toroidal cable as the inverted upper chord toroidal cable 402 of the inverted pentagonal toroidal substructure.

[0046] like Figure 2 , 9 As shown in Figure 10, if the inverted pentagonal toroidal substructure is located in the inner ring and the upright pentagonal toroidal substructure is located in the outer ring, then the adjacent inverted pentagonal toroidal substructure and upright pentagonal toroidal substructure share a spine top node, that is, the upright spine top node 31 of the upright pentagonal toroidal substructure and the inverted spine top node 41 of the inverted pentagonal toroidal substructure are the same node.

[0047] like Figure 1 As shown, if the innermost ring of the cable dome structure is a regular pentagonal ring substructure, then the top nodes 31 of the regular pentagonal spatial basic units constituting this regular pentagonal ring substructure are connected by inner ring cable segments, with the inner ring cable segments connected end to end to form inner ring cable 1. Inner ring cable 1 can be a single unit, that is, the entire ring-shaped inner ring cable connects the top nodes 31 of the regular pentagonal cable.

[0048] like Figure 2 As shown, if the innermost ring of the cable dome structure is an inverted pentagonal circumferential substructure, then the inverted spine cable bottom nodes 43 of the adjacent inverted pentagonal spatial basic units constituting this inverted pentagonal circumferential substructure are connected by inner ring cable segments. The inner ring cable segments are alternately connected end-to-end with the inverted upper chord circumferential cable 402 to form inner ring cable 1. Inner ring cable 1 can be a single unit, that is, the entire ring-shaped inner ring cable connects the inverted spine cable bottom nodes 43 in series.

[0049] like Figure 2 As shown, if the outermost ring of the cable dome structure is a regular pentagonal circumferential substructure, then the regular ridge cable bottom nodes 33 of the adjacent regular pentagonal spatial basic units constituting this regular pentagonal circumferential substructure are connected by outer ring beam segments. The regular upper chord circumferential member 302 of the regular pentagonal circumferential substructure adopts a regular upper chord circumferential beam, which is alternately connected end-to-end with the outer ring beam segments to form an outer ring beam 2. The outer ring beam 2 can be a single piece, that is, the entire annular outer ring beam connects the regular ridge cable bottom nodes 33 in series.

[0050] like Figure 1As shown, if the outermost ring of the cable dome structure is an inverted pentagonal ring substructure, then the inverted ridge cable top nodes 41 of the adjacent inverted pentagonal spatial basic units constituting this inverted pentagonal ring substructure are connected by outer ring beam segments. The outer ring beam segments are connected end to end to form outer ring beam 2. The outer ring beam 2 can be a single piece, that is, the entire ring-shaped outer ring beam connects the inverted ridge cable top nodes 41 in series.

[0051] like Figure 11 As shown, the first plane I and the second plane II that form the pentagonal projection surface in the upright pentagonal spatial basic unit, and the third plane III and the fourth plane IV that form the pentagonal projection surface in the inverted pentagonal spatial basic unit, and the angles between each plane and the horizontal plane. Where f is the structural sag and L is the structural span; in the upright and inverted pentagonal circumferential substructures in the same radial direction, a node on the inner ring cable is taken as the starting ridge cable node, and a node on the outer ring beam is taken as the ending ridge cable node. A node is selected as the ridge cable node in the same circumference, n is the number of ridge cable nodes, and r i denoted as , which is the horizontal distance between the i-th chord node and the central axis of the overall structure.

[0052] The specific embodiments described in this invention are preferred embodiments and are not intended to limit the scope of this invention. That is, all equivalent changes and modifications made within the scope of the claims of this invention should be considered within the technical scope of this invention.

Claims

1. A pentagonal sequence multi-strut hybrid cable dome structure, composed of 2 to 5 concentric circumferential substructures, including an inner ring cable, an outer ring beam, and at least one upright pentagonal circumferential substructure and one inverted pentagonal circumferential substructure; characterized in that: The aforementioned regular pentagonal circumferential substructure is a ring shape, composed of multiple regular pentagonal spatial basic units with the same structure and specifications connected in series. The regular pentagonal spatial basic unit includes a regular ridge cable top node, two regular ridge cable side nodes, two regular ridge cable bottom nodes, and a three-strut lower chord node, as well as four regular upper chord ridge cables, one regular upper chord circumferential member, three regular unit struts, and a pair of bifurcated diagonal cables. One upright ridge cable top node and two upright ridge cable side nodes are located in the first plane. The upright ridge cable top node is connected to the two upright ridge cable side nodes respectively through two upright ridge cable top chords of the same length. The two upright ridge cable side nodes and two upright ridge cable bottom nodes are located in the second plane. The two upright ridge cable side nodes are connected to the two upright ridge cable bottom nodes respectively through two upright ridge cable top chords of the same length. The two upright ridge cable bottom nodes are connected by upright ridge cable top chord circumferential members. The first plane and the second plane form a folded surface with a horizontal projection of a pentagon. The three-strut lower chord node is located below this folded surface and within the pentagonal projection range. The three-strut lower chord node is connected to the two upright ridge cable side nodes respectively through two upright unit struts of the same length, connected to the two upright ridge cable bottom nodes respectively through two bifurcated diagonal cables of the same length, and connected to the upright ridge cable top node through another upright unit strut. The three-strut lower chord nodes of multiple regular pentagonal spatial basic units are connected sequentially through regular unit ring cable segments. Two adjacent regular pentagonal spatial basic units share a regular ridge cable side node. The nodes corresponding to multiple regular pentagonal spatial basic units that form a regular pentagonal circumferential substructure are located on the same circumference. The inverted pentagonal circumferential substructure is a ring-shaped structure composed of multiple inverted pentagonal spatial basic units with the same structure and specifications connected in series. It includes an inverted ridge cable top node, two inverted ridge cable side nodes, two inverted ridge cable bottom nodes, and a four-strut lower chord node, as well as four inverted upper chord ridge cables, one inverted upper chord circumferential cable, four inverted unit struts, and one independent inclined cable. Two inverted ridge cable side nodes and two inverted ridge cable bottom nodes are located in the third plane. The two inverted ridge cable side nodes are connected to the two inverted ridge cable bottom nodes through two inverted ridge cable bottom nodes of the same length. The two inverted ridge cable bottom nodes are connected by inverted ridge cable bottom circumferential cables. One inverted ridge cable top node and two inverted ridge cable side nodes are located in the fourth plane. The inverted ridge cable top node is connected to the two inverted ridge cable side nodes through two inverted ridge cable bottom chords of the same length. The third plane and the fourth plane form a folded surface with a horizontal projection of a pentagon. The four-strut lower chord node is located below this folded surface and within the pentagonal projection range. The four-strut lower chord node is connected to the two inverted ridge cable side nodes through two inverted unit struts of the same length, and to the two inverted ridge cable bottom nodes through two inverted unit struts of the same length. It is also connected to the inverted ridge cable top node through an independent diagonal cable. The four-strut lower chord nodes of multiple inverted pentagonal spatial basic units are connected sequentially through inverted unit ring cable segments, and two adjacent inverted pentagonal spatial basic units share one inverted spine cable side node; the nodes corresponding to multiple inverted pentagonal spatial basic units that constitute an inverted pentagonal circumferential substructure are located on the same circumference; The upright pentagonal toroidal substructures and the inverted pentagonal toroidal substructures are arranged alternately along the radial direction of the cable dome structure as a whole.

2. The pentagonal sequence multi-strut hybrid cable dome structure as described in claim 1, characterized in that: For upright and inverted pentagonal toroidal substructures in the same radial direction, if the upright pentagonal toroidal substructure is located in the inner ring and the inverted pentagonal toroidal substructure is located in the outer ring, then adjacent upright and inverted pentagonal toroidal substructures share two spine bottom nodes and one upper chord toroidal cable. That is, the upright spine bottom node of the upright pentagonal toroidal substructure and the inverted spine bottom node of the corresponding inverted pentagonal toroidal substructure are the same node. The upright upper chord toroidal component of the upright pentagonal toroidal substructure uses an upright upper chord toroidal cable, which is the same toroidal cable as the inverted upper chord toroidal cable of the inverted pentagonal toroidal substructure.

3. The pentagonal sequence multi-strut hybrid cable dome structure as described in claim 1, characterized in that: For upright and inverted pentagonal toroidal substructures in the same radial direction, if the inverted pentagonal toroidal substructure is located in the inner ring and the upright pentagonal toroidal substructure is located in the outer ring, then adjacent inverted pentagonal toroidal substructures and upright pentagonal toroidal substructures share a spine top node. That is, the upright spine top node of the upright pentagonal toroidal substructure and the inverted spine top node of the inverted pentagonal toroidal substructure are the same node.

4. The pentagonal sequence multi-strut hybrid cable dome structure as described in claim 1, characterized in that: If the innermost ring of the cable dome structure is a regular pentagonal ring substructure, then the top nodes of the regular ridge cables of the adjacent regular pentagonal spatial basic units constituting the regular pentagonal ring substructure are connected through the inner ring cable segments. The inner ring cable segments are connected end to end to form the inner ring cable.

5. The pentagonal sequence multi-strut hybrid cable dome structure as described in claim 1, characterized in that: If the innermost ring of the cable dome structure is an inverted pentagonal ring substructure, then the bottom nodes of the inverted ridge cables of the adjacent inverted pentagonal spatial basic units constituting the inverted pentagonal ring substructure are connected through the inner ring cable segments. The inner ring cable segments are alternately connected end to end with the inverted upper chord ring cables to form the inner ring cables.

6. The pentagonal sequence multi-strut hybrid cable dome structure as described in claim 4 or 5, characterized in that: The inner ring cable is a single unit, meaning that the entire ring-shaped inner ring cable connects the top node of the upright ridge cable or the bottom node of the inverted ridge cable.

7. The pentagonal sequence multi-strut hybrid cable dome structure as described in claim 1, characterized in that: If the outermost ring of the cable dome structure is a regular pentagonal ring substructure, then the bottom nodes of the regular ridge cables of the adjacent regular pentagonal spatial basic units constituting the regular pentagonal ring substructure are connected by the outer ring beam segments. The regular upper chord ring members of the regular pentagonal ring substructure adopt regular upper chord ring beams, which are alternately connected end to end with the outer ring beam segments to form the outer ring beams.

8. The pentagonal sequence multi-strut hybrid cable dome structure as described in claim 1, characterized in that: If the outermost ring of the cable dome structure is an inverted pentagonal ring substructure, then the top nodes of the inverted ridge cables of the adjacent inverted pentagonal spatial basic units constituting the inverted pentagonal ring substructure are connected by the outer ring beam segments. The outer ring beam segments are connected end to end to form the outer ring beam.

9. The pentagonal sequence multi-strut hybrid cable dome structure as described in claim 7 or 8, characterized in that: The outer ring beam is a single unit, meaning that the entire ring-shaped outer ring beam connects the upright bottom node of the ridge cable or the inverted top node of the ridge cable.

10. The pentagonal sequence multi-strut hybrid cable dome structure as described in claim 1, characterized in that: Multiple upright unit ring cable segments are integrated into a single unit, forming a complete circular lower chord ring cable; and / or multiple inverted unit ring cable segments are integrated into a single unit, forming a complete circular lower chord ring cable.

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