CN111877544A - Bolt ball and hub combined node for multilayer grid structure - Google Patents
Bolt ball and hub combined node for multilayer grid structure Download PDFInfo
- Publication number
- CN111877544A CN111877544A CN202010922945.4A CN202010922945A CN111877544A CN 111877544 A CN111877544 A CN 111877544A CN 202010922945 A CN202010922945 A CN 202010922945A CN 111877544 A CN111877544 A CN 111877544A
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- Prior art keywords
- hub
- bolt
- bolt ball
- node
- grid structure
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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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
- E04B1/1903—Connecting nodes specially adapted therefor
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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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention relates to a bolt ball and hub combined node for a multilayer grid structure. The method comprises the following steps: the hub body, the chord member and the diagonal web member; a plurality of chord members are uniformly fixed on the peripheral side wall of the hub body at intervals, and a plurality of inclined web members are fixed at the end part according to a certain space angle. The structure of the invention is simple and diversified; the node performance is superior; the assembled type building block is high in assembly degree (not limited by included angles of rod pieces and restriction of a bolt ball fitting warehouse), excellent in building effect and capable of being widely applied to a multi-layer space grid structure system.
Description
Technical Field
The invention relates to the technical field of building structure engineering, in particular to a bolt ball and hub combined node for a multi-layer grid structure.
Background
Single-layer and multi-layer space grid structure systems are widely concerned and applied in large-span buildings due to excellent structural performance and superior building effect. In order to popularize the assembling degree of the node, various node forms such as an insertion type hub node, a bolt ball node and a node plate type bolt node are available at present, wherein the hub node and the bolt ball node are widely applied.
The hub node is widely applied to a single-layer grid structure due to simple structure, attractive appearance, excellent mechanical property and high assembly degree, but for a multi-layer space grid structure, the traditional hub node is not applicable any more due to the fact that the space inclined web members have multiple inclined angle types and the relative angle relation with the node is complex.
The bolt ball joint is widely applied to a multi-layer grid structure due to simple processing technology, convenient installation and high assembly degree. However, the size of the bolt ball is limited by the rod piece specification, the space included angle and the bolt specification, so that the bolt ball is large in size and poor in economical efficiency and aesthetic property, and in addition, the span of the bolt ball grid structure is limited due to the fitting system of the domestic bolt ball node (the span is large to a certain degree, the bolt ball node is not applicable any more, and other forms are suitable), so that the assembly depth and the width of the multilayer grid structure system are limited.
Therefore, it is necessary to provide a novel node with high economic value, good building effect and excellent mechanical property, and the assembled degree of the (multi-layer grid structure system) is maximized.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a bolt ball and hub combined node for a multilayer grid structure.
The technical scheme for realizing the purpose of the invention is as follows: a bolt ball and hub combined node for a multilayer grid structure comprises a hub body, chords and oblique web members, wherein the chords are uniformly fixed on the peripheral side wall of the hub body at intervals, and the oblique web members are fixed at the end parts according to a certain space angle.
Furthermore, a plurality of embedded grooves are uniformly arranged on the side wall around the hub body at intervals, a plurality of bolt holes are arranged at the end part according to a certain space angle, and the embedded grooves are communicated with the outside.
Furthermore, a bolt hole is formed in one end of the hub body, a gland is arranged at the opposite end of the hub body, and the chord is fixed in the embedded groove through the central bolt by the gland.
Further, the end part of the chord is provided with an embedded key which is arranged in the embedded groove in a matching way with the embedded groove.
Furthermore, the end part of the oblique web member is provided with a web member bolt and a sleeve, and the oblique web member is fixed on the bolt hole through the matching of the web member bolt and the sleeve.
A multi-layer grid structure is composed of a plurality of bolt balls and hub combination nodes, a plurality of hub bodies and chord members are connected with each other to form a planar structure, and a plurality of inclined web members are connected through two ends of each bolt ball to form a space grid structure system.
After the technical scheme is adopted, the invention has the following positive effects:
(1) the invention has simple and diversified structure installation, excellent node performance, high assembly degree (not limited by the included angle of the rod piece and the restriction of a bolt ball fitting warehouse), and excellent building effect.
(2) The invention has reasonable structure stress, combines the traditional hub node and the bolt ball connection mode, and can be widely applied to a multilayer space grid structure system.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings, in which
FIG. 1 is a schematic axial view of example 1;
FIG. 2 is a top view of embodiment 1;
FIG. 3 is a bottom view of embodiment 1;
FIG. 4 is a sectional view of embodiment 1;
FIG. 5 is a schematic structural view of the diagonal web member of the present invention;
FIG. 6 is a schematic axial view of example 2;
FIG. 7 is a sectional view of embodiment 2;
FIG. 8 is a schematic structural view of example 3;
FIG. 9 is a schematic structural diagram of example 4.
Detailed Description
(example 1)
Referring to fig. 1 to 5, the present invention includes a hub 1, chords 2 and diagonal web members 3, wherein 4 chords 2 are fixed on the peripheral side wall of the hub 1 at intervals of 90 °, and 4 diagonal web members 3 are fixed at the top end thereof at a certain spatial angle. The 4 oblique web members 3 are the regular quadrangle system of coning, and the planar contained angle that oblique web members 3 and 4 chord member 2 constitute is 66, 90 evenly are provided with 4 embedded grooves 11 on the lateral wall around the hub body 1 at interval, and the top is provided with 4 bolt holes 12 that correspond according to oblique web member 3's space angle, 11 bottoms of embedded groove and outside intercommunication. The bottom end of the hub body 1 is provided with a gland 13 which fixes the chord 2 in the embedded groove 11 through a central bolt 14. The top end of the chord 2 is provided with an embedded key 21, and the embedded key 21 is installed in the embedded groove 11 in a matching way with the embedded groove 11. The top end of the diagonal web member 3 is provided with a web member bolt 31 and a sleeve 32, and the diagonal web member 3 is fixed on the bolt hole 12 through the matching of the web member bolt 31 and the sleeve 32.
(example 2)
Referring to fig. 6 to 7, this embodiment is substantially the same as embodiment 1, and its distinctive features are: 6 chord members 2 are fixed on the peripheral side wall of the hub body 1 at intervals of 60 degrees, and 3 inclined web members 3 are fixed at the top end according to a certain space angle. 3 oblique web members 3 are the regular triangle system of tapering, and the planar contained angle that oblique web members 3 and 6 chord member 2 constitute is 63, the interval 60 evenly is provided with 6 embedded groove 11 on the lateral wall around the hub body 1, and the top is provided with 6 bolt holes 12 that correspond according to oblique web member 3's space angle, 11 bottoms of embedded groove and outside intercommunication.
(example 3)
Referring to fig. 8, the invention is built by combining a plurality of embodiments 1. The hub bodies 1 and the chord members 2 are connected with each other to form a planar structure, and the diagonal web members 3 form a three-dimensional double-layer grid space structure through the hub bodies 1 connected with two ends.
(example 4)
Referring to fig. 9, the present invention is built by combining several embodiments 2. The hub bodies 1 and the chord members 2 are connected with each other to form a planar structure, and the diagonal web members 3 form a three-dimensional double-layer grid space structure through the hub bodies 1 connected with two ends.
The working principle of the invention is as follows: by using the high-strength bolt connection mode of the bolt-ball node for reference on the diagonal web member 3, the defects of the existing hub node and bolt-ball node system can be avoided well: due to the fact that the inclination angle of the web member is large, the relative angle relation between the web member and the hub body is complex, the precision requirement is high, the implementation difficulty is high, the machining cost is extremely high, the economy is poor, and the problems that a bolt ball joint fitting library in the existing market is single, and the size of a bolt ball is limited by the included angle of a space member and the size of a bolt can be avoided. Only the bolt hole 12 is machined at the top end or the bottom end of the hub body 1 according to the space angle of the diagonal web member 3, the accuracy of the ball hole is easy to achieve, the stress of the diagonal web member 3 is reasonable, and the tangential degree of the diagonal web member 3 and a design model is high. The chord 2 is fixed in the hub body 1 by a gland 13 on the end face of the hub body 1 opposite to the bolt hole 12. The included angle of the plane formed by the diagonal web members 3 and the plurality of the chords 2 can be adjusted between 25 degrees and 75 degrees according to the actual requirements of different projects.
The installation process of the combined node structure is as follows: firstly, the chord member 2 is installed, the embedding key 21 is inserted into the embedding groove 11 from bottom to top, after the installation of the chord member 2 is finished, the pressing cover 13 is pressed by the central bolt 14 in time to prevent the chord member 2 from loosening, the inclined web members 3 adopt the special spanner to screw the sleeve 32 to screw the web member bolts 31 into the hub body 1, then the chord member 2 is installed, and the net rack is regularly pushed in the direction of X, Y to finally form a net rack whole body. Generally, a high-altitude bulk loading method, a jacking method and a lifting method can be used in the structure.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A bolt ball and hub combination node for multilayer grid structure which characterized in that: the novel hub comprises a hub body (1), chords (2) and oblique web members (3), wherein the chords (2) are uniformly fixed on the peripheral side wall of the hub body (1) at intervals, and the oblique web members (3) are fixed at the end parts according to a certain space angle.
2. A bolt ball and hub combination node for a multi-layer lattice structure as claimed in claim 1, wherein: the novel hub is characterized in that a plurality of embedded grooves (11) are uniformly formed in the peripheral side wall of the hub body (1) at intervals, a plurality of bolt holes (12) are formed in one end of the hub body (1) according to a certain space angle, and the embedded grooves (11) are communicated with the outside.
3. A bolt ball and hub combination node for a multi-layer lattice structure as claimed in claim 2, wherein: the hub body (1) is provided with a gland (13) at one end opposite to the bolt hole (12), and the gland (13) fixes the chord (2) in the embedded groove (11) through a central bolt (14).
4. A bolt ball and hub combination node for a multi-layer lattice structure as claimed in claim 2, wherein: the two ends of the chord (2) are provided with embedded keys (21), and the embedded keys (21) are installed in the embedded grooves (11) in a matched mode with the embedded grooves (11).
5. A bolt ball and hub combination node for a multi-layer lattice structure as claimed in claim 2, wherein: oblique web member (3) tip is provided with web member bolt (31) and sleeve (32), oblique web member (3) are fixed on bolt hole (12) through the cooperation of web member bolt (31) and sleeve (32).
6. A multi-layer lattice structure comprising a plurality of bolt ball and hub composite nodes as claimed in any one of claims 1 to 5, wherein: the hub bodies (1) and the chord members (2) are connected with each other to form a planar structure, and the diagonal web members (3) form a multi-layer space grid structure system through the hub bodies (1) connected with two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010922945.4A CN111877544A (en) | 2020-09-04 | 2020-09-04 | Bolt ball and hub combined node for multilayer grid structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010922945.4A CN111877544A (en) | 2020-09-04 | 2020-09-04 | Bolt ball and hub combined node for multilayer grid structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111877544A true CN111877544A (en) | 2020-11-03 |
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ID=73198603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010922945.4A Pending CN111877544A (en) | 2020-09-04 | 2020-09-04 | Bolt ball and hub combined node for multilayer grid structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111877544A (en) |
-
2020
- 2020-09-04 CN CN202010922945.4A patent/CN111877544A/en active Pending
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