CN113216398A - T-shaped three-stay-rod cable dome structure and implementation method thereof - Google Patents
T-shaped three-stay-rod cable dome structure and implementation method thereof Download PDFInfo
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/32—Arched structures; Vaulted structures; Folded structures
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/342—Structures covering a large free area, whether open-sided or not, e.g. hangars, halls
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- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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- E—FIXED CONSTRUCTIONS
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- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
- E04B7/08—Vaulted roofs
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- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
- E04B7/08—Vaulted roofs
- E04B7/10—Shell structures, e.g. of hyperbolic-parabolic shape; Grid-like formations acting as shell structures; Folded structures
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- E—FIXED CONSTRUCTIONS
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- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
- E04B7/08—Vaulted roofs
- E04B7/10—Shell structures, e.g. of hyperbolic-parabolic shape; Grid-like formations acting as shell structures; Folded structures
- E04B7/102—Shell structures
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- E—FIXED CONSTRUCTIONS
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- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
- E04B7/14—Suspended roofs
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/32—Arched structures; Vaulted structures; Folded structures
- E04B2001/3294—Arched structures; Vaulted structures; Folded structures with a faceted surface
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Abstract
The invention belongs to the technical field of building structures, and particularly relates to a T-shaped three-stay-rod cable dome structure, wherein a supporting assembly comprises a central stay rod, an inner ring stay rod ring and an outer ring stay rod ring, the central stay rod, the inner ring stay rod ring and the outer ring stay rod ring are all composed of stay rods, the inner ring stay rod ring is composed of six T-shaped three stay rods, and the outer ring stay rod ring is composed of six T-shaped three stay rods and six connecting rods; the implementation method of the T-shaped three-stay-rod cable dome structure comprises the following steps: step one, selecting a stay bar with a proper length according to the building size of a cable dome; manufacturing twelve T-shaped three-stay bars and six connecting rods according to the dome; through the supporting component consisting of the central stay bar, the inner ring stay bar ring and the outer ring stay bar ring, and meanwhile, the central stay bar, the inner ring stay bar ring and the outer ring stay bar ring are all formed by the stay bars, the convenience of the cable dome in construction is improved, the selection of materials in construction of the cable dome is reduced, and therefore the production cost of the cable dome is reduced.
Description
Technical Field
The invention belongs to the technical field of building structures, and particularly relates to a T-shaped three-brace cable dome structure and an implementation method thereof.
Background
Cable dome structures in the 20 th century, 40 s, proposed a tensioned monolithic system, which conceived to reduce as much as possible the compression members in the structure, thus putting the structure in continuous tension and in intermittent compression, making "compression" an island in the tension sea. Scholars at home and abroad propose various cable dome structures, and the structure forms are mostly the copy of a single figure. The cable dome structure is uniform in mesh division, but a force transmission path is complex, a theoretical calculation formula considering the three-dimensional direction is lacked in analysis of initial prestress of a cable and a rod of the cable dome structure, the problem of lacked in engineering application consideration of the cable dome structure is also existed, Chinese scholars successively put forward novel cable dome structure systems such as Kiewitt type cable domes, bird nest type cable domes and honeycomb four-strut type cable domes, and a simple calculation method for determining initial prestress distribution is put forward. The method is characterized in that a plurality of practical exploration and construction technology innovations are carried out in the aspect of engineering practice application, a first self-designed and constructed tin-free technology-free alternating-current central cable dome with a span of 24m is successfully built in 2009, and then the cable dome of the Chinese coal transaction center and the cable dome of the inner Mongolia Gonghulo flag sports center are successively completed, so that the rapid progress of the combination of the research and calculation theory and the actual engineering of the cable dome in China is marked. Therefore, innovative research and performance research on the cable dome structure are important subjects in the field of modern large-span space steel structures, not only meet the development trend of disciplines at the front, but also meet the national major engineering requirements, and have wide application prospects.
Based on the structure that present cable dome structure exists is inconvenient, the relatively poor problem of hoop rigidity simultaneously.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides a T-shaped three-stay-rod cable dome structure which has the characteristics of convenient and fast construction and better annular rigidity.
In order to achieve the above purpose, the present invention provides a technical solution: the utility model provides a three vaulting pole cable dome structure of T type, including supporting component, cable subassembly and rigidity ring roof beam, cable subassembly connection supporting component and rigidity ring roof beam, supporting component includes central vaulting pole, inner circle vaulting pole ring sum outer lane vaulting pole ring, and central vaulting pole, inner circle vaulting pole ring sum outer lane vaulting pole ring comprises the vaulting pole, inner circle vaulting pole ring comprises six three vaulting poles of T type, outer lane vaulting pole ring comprises six three vaulting poles of T type and six connecting rods, the connecting rod is "V" font structure, the connecting rod comprises two vaulting poles, the node of three vaulting poles of T type is provided with first connection angle, the head and the tail junction of three vaulting poles of T type and the junction of three vaulting poles of T type and connecting rod all are provided with the second connection angle.
According to the preferable technical scheme of the T-shaped three-stay-rod cable dome structure, external threads are arranged at two ends of each stay rod, external hexagonal rings are welded on the side surfaces of the two ends of each stay rod, internal thread sleeves are welded on the surfaces of the first connecting angle and the second connecting angle, the external threads are screwed in the internal thread sleeves, hand screws are screwed in screw holes formed in the surfaces of the first connecting angle and the second connecting angle, connecting holes are formed in the surfaces of the first connecting angle and the second connecting angle, and the end portions of the hand screws are inserted into the connecting holes.
As a preferred technical scheme of the T-shaped three-stay-rod cable dome structure, the end part of the hand screw is of a hemispherical structure, the cable assembly is installed inside the connecting hole, and the hemispherical structure at the end part of the hand screw is in contact with the cable assembly.
As the preferable technical scheme of the T-shaped three-stay-rod cable dome structure, a steel needle is welded on the inner surface of the connecting hole and is inserted into the cable assembly.
As a preferred technical scheme of the T-shaped three-stay-rod cable dome structure, a cable assembly comprises a ridge cable, an inclined cable and a ring cable, wherein the ridge cable is connected with the highest point of an inner ring stay rod ring at two sides and the highest point of an outer ring stay rod ring and a rigid ring beam from the highest point of a central stay rod, the inclined cable is connected with the lowest point of the inner ring stay rod ring at two sides and the lowest point of the inner ring stay rod ring and the rigid ring beam from the lower end of the central stay rod, the ring cable is respectively connected with the lowest point of the inner ring stay rod ring and the lowest point of the outer ring stay rod ring, and the ring cable is annular.
As a preferred technical scheme of the T-shaped three-stay cable dome structure, the highest point of an inner ring stay ring is a node of the T-shaped three-stay, the lowest point of the inner ring stay ring is a free end and an end-to-end connecting end of the T-shaped three-stay, the highest point of an outer ring stay ring is a node of the T-shaped three-stay and an inflection point of a connecting rod, and the lowest point of the outer ring stay ring is a free end of the T-shaped three-stay and a connecting end of the T-shaped three-stay and the connecting rod.
In order to achieve the purpose, the invention provides another technical scheme: a method for implementing a T-shaped three-stay cable dome structure comprises the following steps:
step one, selecting a stay bar with a proper length according to the building size of a cable dome;
manufacturing twelve T-shaped three-stay bars and six connecting rods according to the dome;
selecting six T-shaped three-stay bars to be connected end to form an inner-ring stay bar ring;
selecting six T-shaped three-stay rods and six connecting rods, and connecting the T-shaped three-stay rods and the connecting rods to form an outer ring stay rod ring;
fourthly, placing the central support rod, the inner ring support rod ring, the outer ring support rod ring and the rigid ring beam from inside to outside;
fixing the middle part of the ridge cable on the highest point of the inner ring stay bar ring and the highest point of the outer ring stay bar ring at the upper end of the central stay bar towards two sides, and connecting the highest points of the inner ring stay bar ring and the outer ring stay bar ring with the rigid ring beam;
step six, fixing the middle part of the inclined cable at the lowest point of the inner ring stay bar ring and the lowest point of the outer ring stay bar ring at the lower end of the central stay bar towards two sides, and connecting the lowest points with the rigid ring beam;
and step seven, respectively connecting the ring cable with the lowest point of the inner ring and the lowest point of the outer ring.
In the preferred embodiment of the implementation method of the T-shaped three-stay cable dome structure, when the stay is manufactured, external threads are arranged at two ends of the stay, the outer hexagonal ring is welded on the side surface of the stay end, when the first connecting angle is manufactured, three internal thread sleeves are welded on the surface of the first connecting angle, and a hand screw is screwed in a screw hole formed in the surface of the first connecting angle, when the second connecting angle is manufactured, two internal thread sleeves are welded on the surface of the second connecting angle, and the hand screw is screwed in a screw hole formed in the surface of the second connecting angle.
As a preferred technical solution of the implementation method of the T-shaped three-brace cable dome structure of the present invention, when the T-shaped three-brace is manufactured, the external threads provided at the ends of the three braces are screwed into the internal thread sleeve welded to the surface of the first connecting corner, and when the connecting rod is manufactured, the external threads provided at the ends of the two braces are screwed into the internal thread sleeve welded to the surface of the second connecting corner.
As a preferable technical scheme of the implementation method of the T-shaped three-stay-rod cable dome structure, when the cable assembly is connected with the first connecting angle or the cable assembly is connected with the second connecting angle, the cable assembly is installed in the connecting hole, and the hand screw is rotated, so that the hemisphere at the end part of the hand screw extrudes the cable assembly, and the steel needle penetrates into the cable assembly.
Compared with the prior art, the invention has the beneficial effects that:
1. through the supporting component that comprises central vaulting pole, inner circle vaulting pole ring and outer lane vaulting pole ring, central vaulting pole simultaneously, inner circle vaulting pole ring and outer lane vaulting pole ring are constituteed by the vaulting pole, the convenience when having increased cable dome structure has reduced the selection to the material when cable dome structure, thereby the cost of cable dome production has been reduced, inner circle vaulting pole ring comprises six T type three vaulting poles simultaneously, outer lane vaulting pole ring comprises six T type three vaulting poles and six connecting rods, the stability of cable dome structure has been increased, the first connection angle that the node of T type three vaulting pole set up simultaneously, and the second connection angle that T type three vaulting pole head and tail junction and T type three vaulting pole and connecting rod set up, assemble through the accessory when making cable dome assemble, the convenience of cable dome component connection has been improved, the degree of difficulty of installation of cable dome has been reduced.
2. The T-shaped three-stay rod changes the vertical stay rod 1 into the three inclined stay rods 1, the gravity center of a tetrahedral unit formed by the three inclined stay rods 1 is close to the inner side of the cable dome, the T-shaped three-stay rod is arranged from the center of the cable dome to the outer ring, the structural stability is improved, the T-shaped three-stay rod is tightly connected, an inner ring stay rod ring is formed in the circumferential direction, the T-shaped three-stay rod and a connecting rod are arranged in the inner ring stay rod ring, the T-shaped three-stay rod is connected with the connecting rod and connected with the inner ring stay rod ring through a cable assembly, the circumferential rigidity and the radial rigidity of the structure are improved, the capability of the structure for resisting non-uniform load is improved, the structural grid is uniformly divided and can be divided into six units, the structural integrity is good, compared with the traditional cable dome structure, the T-shaped three-stay rod cable dome is tightly connected in.
3. The external threads arranged at the two ends of the stay bar and the internal thread sleeves welded on the surfaces of the first connecting angle and the second connecting angle are used, the external threads arranged at the end parts of the stay bar are screwed in the internal thread sleeves, the connection stability of the stay bar and the first connecting angle and the connection stability of the stay bar and the second connecting angle are improved, the external hexagonal rings welded on the side surfaces of the two ends of the stay bar are used for rotating the stay bar through a spanner, the convenience of screwing the end parts of the stay bar in the internal thread sleeves is improved, the cable assembly is convenient to install in the connecting holes through the connecting holes formed on the surfaces of the first connecting angle and the second connecting angle, hand screws are screwed in the screw holes formed on the surfaces of the first connecting angle and the second connecting angle, the hemispheres arranged at the end parts of the hand screws are inserted into the connecting holes and contacted with the cable assembly, and steel needles welded on the surfaces of the connecting holes penetrate into the cable assembly, so that the positioning firmness of the cable assembly is improved, thereby increasing the stability of the cable dome construction.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic top view of the present invention;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is a schematic perspective view of the present invention;
FIG. 4 is a schematic view of the construction of the stay, the spinal cord, the stay cord, the ring cord and the rigid ring beam according to the present invention;
FIG. 5 is a schematic view of the connection structure of the stay bar and the first connecting angle in the present invention;
FIG. 6 is a schematic view of the connection structure of the stay bar and the second connecting angle in the present invention;
FIG. 7 is an enlarged view of the connection between the stay bar and the second connecting angle of the present invention;
FIG. 8 is a schematic view of the first connection angle, the thumb screw, the connection hole and the steel needle according to the present invention;
in the figure: 1. a stay bar; 11. an external thread; 12. an outer hexagonal ring; 2. a spinal cord; 3. a stay cable; 4. a ring cable; 5. a rigid ring beam; 6. a first connection angle; 61. an internally threaded sleeve; 62. screwing the screw by hand; 63. connecting holes; 64. a steel needle; 7. a second connecting angle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-8, the present invention provides a technical solution: the utility model provides a three vaulting pole cable dome structure of T type, including supporting component, cable subassembly and rigidity ring roof beam 5, cable subassembly connection supporting component and rigidity ring roof beam 5, supporting component includes central vaulting pole, inner circle vaulting pole ring and outer lane vaulting pole ring, and central vaulting pole, inner circle vaulting pole ring and outer lane vaulting pole ring are constituteed by vaulting pole 1, inner circle vaulting pole ring comprises six three vaulting poles of T type, outer lane vaulting pole ring comprises six three vaulting poles of T type and six connecting rods, the connecting rod is "V" font structure, the connecting rod comprises two vaulting poles 1, the node of three vaulting poles of T type is provided with first connection angle 6, the first tail junction of three vaulting poles of T type and the junction of three vaulting poles of T type and connecting rod all are provided with second connection angle 7.
In the embodiment, through the supporting component consisting of the central stay bar, the inner ring stay bar ring and the outer ring stay bar ring, meanwhile, the central stay bar, the inner ring stay bar ring and the outer ring stay bar ring are all composed of the stay bars 1, the convenience of the cable dome in construction is improved, the selection of materials in the construction of the cable dome is reduced, thereby reducing the production cost of the cable dome, simultaneously, the inner ring stay bar ring consists of six T-shaped three stay bars, the outer ring stay bar ring consists of six T-shaped three stay bars and six connecting rods, the stability of the cable dome during construction is increased, meanwhile, a first connecting angle 6 is arranged at the node of the T-shaped three-stay bar, and a second connecting angle 7 is arranged at the head-tail connecting position of the T-shaped three-stay bar and the connecting bar, the cable dome is assembled through the accessories during assembly, the convenience of connection of the cable dome is improved, and the difficulty of installation of the cable dome is reduced.
Specifically, both ends of vaulting pole 1 all are provided with external screw thread 11, the side surface welding at vaulting pole 1 both ends has outer hexagonal ring 12, internal thread sleeve 61 has all been welded on the surface of first connection angle 6 and second connection angle 7, and the inside of internal thread sleeve 61 is closed soon to external screw thread 11, first connection angle 6 and second connection angle 7 surface are seted up the screw hole internal thread and are closed hand screw 62, connecting hole 63 has been seted up on the surface of first connection angle 6 and second connection angle 7, and the inside of connecting hole 63 is inserted to the tip of hand screw 62, the tip of hand screw 62 is hemispherical structure, the internally mounted of connecting hole 63 has the cable subassembly, and the hemispherical structure and the cable subassembly contact of hand screw 62 tip, the internal surface welding of connecting hole 63 has steel needle 64, and steel needle 64 pierces in the cable subassembly.
In the embodiment, through the external threads 11 arranged at the two ends of the stay bar 1 and the internal thread sleeves 61 welded on the surfaces of the first connecting angle 6 and the second connecting angle 7, and simultaneously the external threads 11 arranged at the end part of the stay bar 1 are screwed in the internal thread sleeves 61, the stability of the connection between the stay bar 1 and the first connecting angle 6 and the connection between the stay bar 1 and the second connecting angle 7 are increased, meanwhile, the external hexagonal rings 12 welded on the side surfaces of the two ends of the stay bar 1 are convenient for rotating the stay bar 1 through a spanner, the convenience of screwing the end part of the stay bar 1 in the internal thread sleeves 61 is increased, through the connecting holes 63 formed on the surfaces of the first connecting angle 6 and the second connecting angle 7, the cable assembly is convenient to be installed in the connecting holes 63, and the hand screws 62 are screwed in the screw holes formed on the surfaces of the first connecting angle 6 and the second connecting angle 7, and simultaneously, the hemispheres arranged at the end parts of the hand screws 62 are inserted in the connecting holes 63 and contacted with the cable assembly, and the steel needle 64 welded on the surface of the connecting hole 63 penetrates into the cable assembly, so that the reliability of positioning the cable assembly is improved, and the stability of constructing the cable dome is improved.
The cable assembly comprises a ridge cable 2, an inclined cable 3 and a ring cable 4, wherein the ridge cable 2 is connected with the highest point of the inner ring strut ring and the highest point of the outer ring strut ring from the highest point of the central strut to the highest point of the inner ring strut ring on two sides and a rigid ring beam 5, the inclined cable 3 is connected with the lowest point of the inner ring strut ring and the lowest point of the inner ring strut ring from the lower end of the central strut to two sides and the rigid ring beam 5, the ring cable 4 is respectively connected with the lowest point of the inner ring strut ring and the lowest point of the outer ring strut ring and is in a ring shape, the highest point of the inner ring strut ring is a node of a T-shaped three strut, the lowest points of the inner ring strut ring are a free end and a head-tail highest point of the T-shaped three strut, the node of the outer ring strut ring is an inflection point of the T-shaped three strut and a connecting end of the T-shaped three struts and a connecting rod.
The invention provides another technical scheme: an implementation method of a T-shaped three-stay-rod cable dome structure is characterized by comprising the following steps: the method comprises the following steps: step one, selecting a stay bar 1 with a proper length according to the building size of a cable dome; manufacturing twelve T-shaped three-stay bars and six connecting rods according to the dome; selecting six T-shaped three-stay bars to be connected end to form an inner-ring stay bar ring; selecting six T-shaped three-stay rods and six connecting rods, and connecting the T-shaped three-stay rods and the connecting rods to form an outer ring stay rod ring; fourthly, the central support rod, the inner ring support rod ring, the outer ring support rod ring and the rigid ring beam 5 are placed from inside to outside; fixing the middle part of a ridge cable 2 at the highest point of the inner ring stay rod ring and the highest point of the outer ring stay rod ring at the upper end of the central stay rod towards two sides, and connecting the highest points of the inner ring stay rod ring and the outer ring stay rod ring with a rigid ring beam 5; sixthly, fixing the middle part of the inclined cable 3 at the lowest point of the inner ring stay bar ring and the lowest point of the outer ring stay bar ring at the lower end of the central stay bar towards two sides, and connecting the lowest points with the rigid ring beam 5; seventhly, the ring cable 4 is respectively connected with the lowest point of the inner ring and the lowest point of the outer ring, when the support rod 1 is manufactured, external threads 11 are arranged at two ends of the support rod 1, an outer hexagonal ring 12 is welded on the side surface of the end part of the support rod 1, when the first connecting angle 6 is manufactured, three internal thread sleeves 61 are welded on the surface of the first connecting angle 6, and a handle screw 62 is screwed in a screw hole formed in the surface of the first connecting angle 6, when the second connecting angle 7 is manufactured, two internal thread sleeves 61 are welded on the surface of the second connecting angle 7, and the handle screw 62 is screwed in a screw hole formed in the surface of the second connecting angle 7, when the T-shaped three support rod is manufactured, the external threads 11 arranged at the end part of the three support rods 1 are screwed in the internal thread sleeves 61 welded on the surface of the first connecting angle 6, when the connecting rod is manufactured, the external threads 11 arranged at the end part of the two support rods 1 are screwed in the internal thread sleeves 61 welded on the surface of the second connecting angle 7, when the cable assembly is connected to the first connecting angle 6 or the second connecting angle 7, the cable assembly is mounted inside the connecting hole 63, and the thumb screw 62 is rotated so that the hemisphere of the end of the thumb screw 62 presses the cable assembly while the steel needle 64 penetrates into the cable assembly.
The T-shaped three-support rod changes a vertical support rod 1 into three inclined support rods 1, the gravity center of a tetrahedral unit consisting of the three inclined support rods 1 is close to the inner side of a cable dome, the T-shaped three-support rods are arranged from the center of the cable dome to the outer ring, the structural stability is improved, the T-shaped three-support rods are tightly connected, an inner ring support rod ring is formed in the circumferential direction, the T-shaped three-support rods and a connecting rod are arranged in the inner ring support rod ring, the T-shaped three-support rods are connected with the connecting rod and are connected with the inner ring support rod ring through a cable assembly, the circumferential rigidity and the radial rigidity of the structure are improved, the capability of the structure for resisting non-uniform load is improved, the structural grid is uniformly divided into six units, the structural integrity is good, compared with the traditional cable dome structure, the circumferential rigidity of the T-shaped three-support rod cable dome is tightly connected, the structural circumferential rigidity is large, the structural grid is uniformly divided, the construction difficulty is small, and the condition that the circumferential rigidity of a Geiger-type cable dome is insufficient is avoided, meanwhile, the problems of large quantity of structural members, high construction tensioning difficulty and difficult node design of the Levy cable dome are solved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A three vaulting pole cable dome structure of T type includes supporting component, cable subassembly and rigid ring roof beam (5), and the cable subassembly is connected supporting component and rigid ring roof beam (5), its characterized in that: the supporting component comprises a central supporting rod, an inner ring supporting rod ring and an outer ring supporting rod ring, the central supporting rod, the inner ring supporting rod ring and the outer ring supporting rod ring are composed of supporting rods (1), the inner ring supporting rod ring is composed of six T-shaped three supporting rods, the outer ring supporting rod ring is composed of six T-shaped three supporting rods and six connecting rods, the connecting rods are of a V-shaped structure, the connecting rods are composed of two supporting rods (1), a first connecting angle (6) is arranged at the node of the T-shaped three supporting rods, and second connecting angles (7) are arranged at the head-tail connecting positions of the T-shaped three supporting rods and the connecting rods.
2. A T-shaped triple strut cable dome structure as claimed in claim 1, wherein: the both ends of vaulting pole (1) all are provided with external screw thread (11), the side surface welding at vaulting pole (1) both ends has outer hexagonal ring (12), the surface of first connection angle (6) and second connection angle (7) all has welded internal thread sleeve (61), and the inside of internal thread sleeve (61) is closed soon in external screw thread (11), screw hole internal screw closed has hand screw (62) is seted up on first connection angle (6) and second connection angle (7) surface, connecting hole (63) have been seted up on the surface of first connection angle (6) and second connection angle (7), and the inside of connecting hole (63) is inserted to the tip of hand screw (62).
3. A T-shaped triple strut cable dome structure as claimed in claim 2, wherein: the end part of the hand screw (62) is of a hemispherical structure, a cable assembly is arranged in the connecting hole (63), and the hemispherical structure at the end part of the hand screw (62) is in contact with the cable assembly.
4. A T-shaped triple strut cable dome structure as claimed in claim 3, wherein: the inner surface of the connecting hole (63) is welded with a steel needle (64), and the steel needle (64) is inserted into the cable assembly.
5. A T-shaped triple strut cable dome structure as claimed in claim 1, wherein: the cable component comprises a ridge cable (2), an inclined cable (3) and a ring cable (4), wherein the ridge cable (2) is connected with the rigid ring beam (5) from the highest point of the central support rod to the highest point of the inner ring support rod rings on the two sides and the highest point of the outer ring support rod rings, the inclined cable (3) is connected with the rigid ring beam (5) from the lower end of the central support rod to the lowest point of the inner ring support rod rings on the two sides and the lowest point of the inner ring support rod rings, the ring cable (4) is respectively connected with the lowest point of the inner ring support rod rings and the lowest point of the outer ring support rod rings and is in ring shape, and the ring cable (4) is in ring shape.
6. A T-shaped triple strut cable dome structure as claimed in claim 5, wherein: the highest point of the inner ring stay bar ring is a node of the T-shaped three stay bars, the lowest point of the inner ring stay bar ring is a free end and an end-to-end connecting end of the T-shaped three stay bars, the highest point of the outer ring stay bar ring is an inflection point of the node of the T-shaped three stay bars and the connecting rod, and the lowest point of the outer ring stay bar ring is a free end of the T-shaped three stay bars and a connecting end of the T-shaped three stay bars and the connecting rod.
7. A method for implementing a T-shaped three-stay cable dome structure, which is used for implementing the T-shaped three-stay cable dome structure as claimed in any one of claims 1 to 6, and is characterized by comprising the following steps:
step one, selecting a stay bar (1) with a proper length according to the building size of a cable dome;
manufacturing twelve T-shaped three-stay bars and six connecting rods according to the dome;
selecting six T-shaped three-stay bars to be connected end to form an inner-ring stay bar ring;
selecting six T-shaped three-stay rods and six connecting rods, and connecting the T-shaped three-stay rods and the connecting rods to form an outer ring stay rod ring;
fourthly, the central support rod, the inner ring support rod ring, the outer ring support rod ring and the rigid ring beam (5) are placed from inside to outside;
fixing the middle part of the ridge cable (2) at the highest point of the inner ring strut ring and the highest point of the outer ring strut ring which are arranged at the upper end of the central strut rod towards two sides, and connecting the highest points of the outer ring strut rings with the rigid ring beam (5);
sixthly, fixing the middle part of the inclined cable (3) at the lowest point of the inner ring stay bar ring and the lowest point of the outer ring stay bar ring at the lower end of the central stay bar towards two sides, and connecting the lowest points with the rigid ring beam (5);
and step seven, respectively connecting the ring cable (4) with the lowest point of the inner ring and the lowest point of the outer ring.
8. The method of claim 7, wherein the method comprises the steps of: during vaulting pole (1) preparation, the both ends of vaulting pole (1) set up external screw thread (11), at outer hexagonal ring (12) of vaulting pole (1) tip side surface welding, during first connection angle (6) preparation, weld the surface at first connection angle (6) three internal thread sleeve (61), and twist screw (62) spiral closure in the screw hole that first connection angle (6) surface was seted up, during second connection angle (7) preparation, weld the surface at second connection angle (7) two internal thread sleeve (61), and twist screw (62) spiral closure is in the screw hole that second connection angle (7) surface was seted up.
9. The method of claim 8, wherein the method further comprises the steps of: during the preparation of the T-shaped three supporting rods, the external threads (11) arranged at the end parts of the three supporting rods (1) are screwed inside the internal thread sleeve (61) welded on the surface of the first connecting angle (6), and during the preparation of the connecting rod, the external threads (11) arranged at the end parts of the two supporting rods (1) are screwed inside the internal thread sleeve (61) welded on the surface of the second connecting angle (7).
10. The method of claim 8, wherein the method further comprises the steps of: when the cable assembly is connected with the first connecting angle (6) or the cable assembly is connected with the second connecting angle (7), the cable assembly is installed inside the connecting hole (63), and the hand screw (62) is rotated, so that the hemisphere at the end of the hand screw (62) extrudes the cable assembly, and the steel needle (64) penetrates into the cable assembly.
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| CN110424610A (en) * | 2019-07-08 | 2019-11-08 | 北京建筑大学 | A kind of cable dome structure |
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