CN111042318A - Single-layer aluminum alloy latticed shell box type modular assembly joint and construction process thereof - Google Patents
Single-layer aluminum alloy latticed shell box type modular assembly joint and construction process thereof Download PDFInfo
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- CN111042318A CN111042318A CN201911318150.6A CN201911318150A CN111042318A CN 111042318 A CN111042318 A CN 111042318A CN 201911318150 A CN201911318150 A CN 201911318150A CN 111042318 A CN111042318 A CN 111042318A
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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
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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
- E04B1/1906—Connecting nodes specially adapted therefor with central spherical, semispherical or polyhedral connecting element
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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
- E04B2001/1918—Connecting nodes specially adapted therefor with connecting nodes having flat radial connecting surfaces
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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
- E04B2001/1924—Struts specially adapted therefor
- E04B2001/1936—Winged profiles, e.g. with a L-, T-, U- or X-shaped cross section
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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
- E04B2001/1957—Details of connections between nodes and struts
- E04B2001/1963—Screw connections with axis at an angle, e.g. perpendicular, to the main axis of the strut
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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
- E04B2001/1978—Frameworks assembled from preformed subframes, e.g. pyramids
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a single-layer aluminum alloy reticulated shell box type modular assembly node which comprises six pentahedral semi-closed box structures and a central reinforcing ring, wherein each pentahedral semi-closed box structure comprises a top plate, a bottom plate, a left side plate, a right side plate and a back plate; the upper panel and the lower panel are fan-shaped, the central reinforcing ring is a hexagonal hollow prism, connecting holes are formed in each of the six pentahedron semi-closed box structures and the central reinforcing ring, and the back plates of the six pentahedron semi-closed box structures are connected with the six side plates of the central reinforcing ring respectively. The invention obviously enhances the bending resistance and shearing resistance bearing capacity of the node, improves the rigidity of the node and the integral stability of the reticulated shell, thereby being applicable to a single-layer aluminum alloy reticulated shell structure with larger span. Meanwhile, the connecting nodes are designed into a plurality of integral box-type modular nodes, and the modular nodes have high universality and are convenient to install.
Description
Technical Field
The invention belongs to the field of civil engineering, relates to a space grid structure node, and particularly relates to a box type modular assembly node of a single-layer aluminum alloy latticed shell and a construction process thereof.
Background
Compared with a steel latticed shell structure, the aluminum alloy latticed shell has the characteristics of light dead weight, corrosion resistance and the like, and is widely applied to buildings with higher corrosion resistance requirements, such as natatoriums and the like. The connecting node of the single-layer aluminum alloy latticed shell is a key part of the structure.
Because the existing traditional aluminum alloy plate type node is usually connected with flanges of an H-shaped aluminum alloy beam by only using an upper circular cover plate and a lower circular cover plate, and a web plate is discontinuous in a node area, the traditional node only depends on the upper cover plate and the lower cover plate to transfer bending moment and limited shearing force born by the node, and cannot provide enough bearing capacity and integral rigidity for a structure, so that the structural span of a reticulated shell is limited.
Disclosure of Invention
In order to solve the problems, the invention discloses a single-layer aluminum alloy latticed shell box type modular assembly joint and a construction process thereof, wherein the single-layer aluminum alloy latticed shell box type modular assembly joint is higher in bearing capacity, more convenient to install and more diverse in combination mode.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a single-layer aluminum alloy reticulated shell box type modular assembly node comprises six pentahedral semi-closed box body structures and a central reinforcing ring, wherein each pentahedral semi-closed box body structure comprises a top plate, a bottom plate, a left side plate, a right side plate and a back plate; the upper panel and the lower panel are fan-shaped, the central reinforcing ring is a hexagonal hollow prism, connecting holes are formed in each of the six pentahedron semi-closed box structures and the central reinforcing ring, and the back plates of the six pentahedron semi-closed box structures are connected with the six side plates of the central reinforcing ring respectively.
A construction process of a single-layer aluminum alloy latticed shell box type modular assembly joint comprises the following steps:
(1) firstly, 3 aluminum alloy I-shaped beams and 3 pentahedral semi-closed box structures form a closed triangular unit in a factory, connecting holes of an upper panel and a lower panel are respectively connected with upper flange holes and lower flange holes of the aluminum alloy I-shaped beams through bolts, connecting holes on a left side plate and a right side plate are connected with web plate holes of the aluminum alloy I-shaped beams through bolts, and then the triangular units are transported to a construction site;
(2) 3 triangular units are connected with the central reinforcing ring by 3 nodes on the ground, and 3 channel beams are connected into a hexagonal unit by 3 nodes on the periphery;
(3) connecting the trough beams among the hexagonal units with each other to form enlarged modular units, hoisting the enlarged modular units on site, connecting the webs among the trough beams of the corresponding enlarged modular units by bolts in the hoisting process, forming an adjusting area after every 6 hexagonal units are connected,
(4) in the adjusting area, the fixed ends of six I-shaped adjusting beams are connected with the nodes to form a bolt of a web plate and a flange, the adjustable end web plate and the flange of the I-shaped adjusting beam are connected with the 12 nodes by bolts, and the flange and the web plate of the I-shaped beam in 6 hexagonal units around are fixed at the same time. After finishing, embedding 7 central reinforcing rings into 7 central node areas formed in the adjusting area, and respectively connecting the central reinforcing rings with 6 surrounding nodes through bolts so as to enhance the integral rigidity of the latticed shell structure;
(5) and repeating the steps, gradually enlarging the assembling range, and finally completing the construction process of the whole reticulated shell, wherein different boundary support forms can be met through different forms of enlarged module units.
As an improvement of the invention, the pentahedral semi-closed box body structure and the central reinforcing ring are made of aluminum alloy and are formed by machining or casting.
As an improvement of the invention, the central reinforcing ring is a hexagonal hollow prism, the six side plates are provided with holes, and the connecting holes on the back plate are connected with the holes on the central reinforcing ring through bolts.
As an improvement of the invention, the height of the pentahedron semi-closed box body structure is equal to that of the central reinforcing ring and also equal to that of the web plate of the aluminum alloy beam.
As an improvement of the invention, the left end and the right end of the aluminum alloy I-shaped beam are provided with the fixed open ends, and the other end is provided with the adjustable open end.
As an improvement of the invention, the I-shaped beam has the same shape and size as the I-shaped adjusting beam, and the sizes of the openings at the two ends of the I-shaped adjusting beam are larger than those of the openings at the two ends of the I-shaped beam, so that the manufacturing error of the component is eliminated during installation.
As an improvement of the invention, the upper and lower flanges of the aluminum alloy I-shaped beam and the trough beam need to be subjected to corner cutting so as to prevent the beams from colliding with each other at the joint.
The invention has the beneficial effects that:
(1) the flange and the web of the aluminum alloy beam are effectively connected at the same time, so that the overall rigidity and the bearing capacity of the modular assembled joint are greatly improved compared with those of the traditional plate type joint, and the amplitude of the modular assembled joint is increased by more than 30 percent as shown by finite element calculation analysis and a loading test of the joint, so that the span of a latticed shell structure is correspondingly improved.
(2) The modular node has simple structure and convenient and quick assembly; a large amount of assembly work is carried out on the ground of a factory or a site, and the work load of site and especially high-altitude installation is greatly reduced.
(3) The assembly process provided by the invention can adapt to different boundary conditions of the latticed shell.
Drawings
FIG. 1 is a schematic structural view of a pentahedral semi-closed box.
FIG. 2 is a schematic view of an I-beam or I-beam adjuster.
Fig. 3 is a schematic view of the beam end of an i-beam.
Figure 4 is a schematic view of a trough beam.
Fig. 5 is a schematic view of a central stiffening ring.
Fig. 6 is a schematic view of a modular unit 1 (i.e., a triangular unit).
Fig. 7 is a schematic view of modular unit 2 (i.e., hexagonal unit).
Fig. 8 is a schematic view of the adjustment region assembly sequence.
Fig. 9 is a schematic view of a circular boundary splicing.
Fig. 10 is a schematic view of triangle boundary splicing.
Fig. 11 is a schematic diagram of parallelogram or rhombus boundary packing.
Fig. 12 is a schematic diagram of rectangular or square boundary packing.
List of reference numerals:
1. the structure comprises an upper panel, 2, a lower panel, 3, a left side plate, 4, a right side plate, 5, a back panel, 6, an I-shaped beam, 7, an I-shaped adjusting beam, 8, a channel beam, 9 and a central reinforcing ring.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention.
Example 1
(1) In order to realize rapid construction, the invention designs a modular aluminum alloy assembling node and a construction process thereof. The upper circular cover plate and the lower circular cover plate in the existing traditional plate type node are eliminated, the connecting node is designed into a plurality of integral modular nodes, and the modular nodes have high universality. The modularized node comprises a whole body formed by 6 pentahedron semi-closed box structures and a middle reinforcing ring 9 (the I-shaped beam 6 is not included, six I-shaped beams are connected structures, every six beams are intersected at a node, namely, each node is connected with six beams), the pentahedron semi-closed box structure is in a pentahedron semi-closed box structure in appearance, and the plane projection is in a fan shape (see fig. 1). The cast aluminum node is formed by machining in a factory and can also be cast into an integrated cast aluminum node by a die.
Firstly, 3I-shaped beams 6 are connected into a triangular 'module unit 1' (see figure 6) by using 3 pentahedral semi-closed box structures through stainless steel bolts. The specific process is as follows: holes are arranged on each panel of the pentahedron semi-closed box body structure and are respectively connected with the I-shaped beam 6 through stainless steel bolts. Holes of the upper panel 1 and the lower panel 2 are respectively connected with upper and lower flange holes of the beam 6 by bolts and mainly bear bending moment; holes in the left side plate 3 and the right side plate 4 are in bolted connection with web plate holes of the I-shaped beam 6, and mainly bear shearing force.
Then 3 triangular 'module units 1' are connected with the central reinforcing ring 9 by 3 nodes, and 3 channel beams 8 are connected into a hexagonal 'module unit 2' by 3 nodes at the periphery (see figure 7).
6 hexagonal "module units 2" are connected through web bolts between the nodes and the trough beams to form "enlarged module units 1" (see fig. 8).
The first expanded modular unit 1 is hoisted to the central area of the latticed shell structure, the assembling range is expanded according to the arrow direction in fig. 9, in the assembling process, an adjusting area is continuously formed, and the circular boundary condition of the latticed shell can be met after the adjusting area is expanded to the boundary. And installing corresponding I-beams and nodes in the adjusting area to complete the adjustment of the integral rigidity.
Example 2
Unlike embodiment 1, as shown in fig. 10, 4 hexagonal "module units 2" are connected to form a large triangular "enlarged module unit 2" by a gutter beam. Similarly, an enlarged modular unit 2 is hoisted to the central area of the latticed shell structure and expands along three sides in the arrow direction of the drawing, and an adjusting area is continuously formed in the assembling process. The triangle boundary condition of the reticulated shell can be met after the reticulated shell is expanded to the boundary. And installing corresponding I-shaped beams and nodes in the adjusting area to complete the adjustment of the integral rigidity.
Example 3
In a similar manner, 3 hexagonal "module elements 2" are interconnected by webs of the outer channel beams to form a parallelogram "enlarged module element 3", as shown in fig. 11. Expanding according to the arrow direction of the figure, the parallelogram or rhombus boundary condition of the reticulated shell can be met.
Example 4
Similarly, the "enlarged modular unit 3" is expanded to a rectangular or square boundary condition in the manner shown in fig. 12.
The foregoing are exemplary embodiments of the present invention, and the implementation of the present invention is not limited thereto, and several simple deductions or substitutions can be made without departing from the spirit of the present invention, which should be considered to fall within the protection scope of the present invention.
Claims (8)
1. The utility model provides a node is assembled to individual layer aluminum alloy latticed shell box modularization which characterized in that: the pentahedron semi-closed box structure comprises six pentahedron semi-closed box structures and a central reinforcing ring, wherein each pentahedron semi-closed box structure comprises a top plate, a bottom plate, a left side plate, a right side plate and a back plate; the upper panel and the lower panel are fan-shaped, the central reinforcing ring is a hexagonal hollow prism, connecting holes are formed in each of the six pentahedron semi-closed box structures and the central reinforcing ring, and the back plates of the six pentahedron semi-closed box structures are connected with the six side plates of the central reinforcing ring respectively.
2. The construction process of the box-type modular assembly joint of the single-layer aluminum alloy latticed shell as claimed in claim 1, wherein the construction process comprises the following steps: the method comprises the following steps:
(1) firstly, forming a closed triangular unit by using 3I-shaped beams and 3 pentahedral semi-closed box structures in a factory, respectively connecting holes of an upper panel and a lower panel with upper and lower flange holes of the I-shaped beams through stainless steel bolts, respectively connecting holes on a left side plate and a right side plate with web plate holes of the I-shaped beams through stainless steel bolts, and then transporting the triangular units to a construction site;
(2) 3 triangular units are connected with the central reinforcing ring by 3 nodes on the ground, and 3 channel beams are connected into a hexagonal unit by 3 nodes on the periphery;
(3) connecting the trough beams among the hexagonal units with each other to form enlarged modular units, hoisting the enlarged modular units on site, connecting the webs among the trough beams of the corresponding enlarged modular units through stainless steel bolts in the hoisting process, forming an adjusting area after every 6 hexagonal units are connected,
(4) in the adjusting area, the fixed ends of six I-shaped adjusting beams are connected with the bolts of web plates and flange formed by nodes, the adjustable end web plates and flange of the I-shaped adjusting beams are connected by bolts by 12 nodes, and the flange plates of the I-shaped beams in 6 hexagonal units around are fixed;
after finishing, embedding 7 central reinforcing rings into 7 central node areas formed in the adjusting area, and respectively connecting the central reinforcing rings with 6 surrounding nodes through stainless steel bolts so as to enhance the integral rigidity of the latticed shell structure;
(5) and repeating the steps, gradually enlarging the assembling range, and finally completing the construction process of the whole reticulated shell, wherein different boundary support forms can be met through different forms of enlarged module units.
3. The construction process of the box-type modular assembly joint of the single-layer aluminum alloy latticed shell as claimed in claim 2, wherein the construction process comprises the following steps: the pentahedron semi-closed box body structure and the central reinforcing ring are made of aluminum alloy and are formed by machining or casting.
4. The construction process of the box-type modular assembly joint of the single-layer aluminum alloy latticed shell as claimed in claim 2, wherein the construction process comprises the following steps: the central reinforcing ring is a hexagonal hollow prism, the six side plates are provided with holes, and the connecting holes in the back plate are connected with the holes in the central reinforcing ring through stainless steel bolts.
5. The construction process of the box-type modular assembly joint of the single-layer aluminum alloy latticed shell as claimed in claim 2, wherein the construction process comprises the following steps: the height of the pentahedron semi-closed box body structure is equal to that of the central reinforcing ring and also equal to that of the web plate of the aluminum alloy beam.
6. The construction process of the box-type modular assembly joint of the single-layer aluminum alloy latticed shell as claimed in claim 2, wherein the construction process comprises the following steps: the left end and the right end of the I-shaped beam are provided with openings, wherein one end of each opening is a fixed opening end, and the other end of each opening is an adjustable opening end.
7. The construction process of the box-type modular assembly joint of the single-layer aluminum alloy latticed shell as claimed in claim 2, wherein the construction process comprises the following steps: the I-shaped beam and the I-shaped adjusting beam are the same in overall dimension, and the sizes of the openings at the two ends of the I-shaped adjusting beam are larger than those of the openings at the two ends of the I-shaped beam.
8. The construction process of the box-type modular assembly joint of the single-layer aluminum alloy latticed shell as claimed in claim 2, wherein the construction process comprises the following steps: and the upper and lower flanges of the I-shaped beam and the channel beam are provided with cut angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911318150.6A CN111042318B (en) | 2019-12-19 | 2019-12-19 | Single-layer aluminum alloy latticed shell box type modular assembly joint and construction process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911318150.6A CN111042318B (en) | 2019-12-19 | 2019-12-19 | Single-layer aluminum alloy latticed shell box type modular assembly joint and construction process thereof |
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| Publication Number | Publication Date |
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| CN111042318A true CN111042318A (en) | 2020-04-21 |
| CN111042318B CN111042318B (en) | 2021-03-23 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622359A (en) * | 2020-05-09 | 2020-09-04 | 东南大学 | Box modularization aluminum alloy combination node |
| CN111877557A (en) * | 2020-06-02 | 2020-11-03 | 东南大学 | Basalt fiber bionic honeycomb plate single-layer aluminum alloy combined latticed shell and construction method thereof |
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| US8820025B1 (en) * | 2011-06-30 | 2014-09-02 | Alexis Rochas | Universal node for space frame structures |
| CN203834690U (en) * | 2014-04-21 | 2014-09-17 | 天津大学 | Double-plate curved scissor type single-layer aluminum alloy reticulated shell node |
| CN104196129A (en) * | 2014-09-24 | 2014-12-10 | 上海建筑设计研究院有限公司 | Novel structural node for space grid |
| CN104847015A (en) * | 2015-05-29 | 2015-08-19 | 东南大学 | Assembled joint applicable to monolayer triangular space grid structure |
| CN205822456U (en) * | 2016-06-27 | 2016-12-21 | 浙江中南建设集团钢结构有限公司 | A kind of steel structure node |
| CN206538865U (en) * | 2017-01-25 | 2017-10-03 | 哈尔滨工业大学 | Space configuration formula bolt Column border node |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102004022879A1 (en) * | 2004-05-06 | 2005-12-01 | Stev Bringmann | Grid shell used as a building structure comprises identical base elements surrounding an inner volume containing hardened concrete |
| US8820025B1 (en) * | 2011-06-30 | 2014-09-02 | Alexis Rochas | Universal node for space frame structures |
| CN203834690U (en) * | 2014-04-21 | 2014-09-17 | 天津大学 | Double-plate curved scissor type single-layer aluminum alloy reticulated shell node |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111622359A (en) * | 2020-05-09 | 2020-09-04 | 东南大学 | Box modularization aluminum alloy combination node |
| CN111877557A (en) * | 2020-06-02 | 2020-11-03 | 东南大学 | Basalt fiber bionic honeycomb plate single-layer aluminum alloy combined latticed shell and construction method thereof |
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| CN111042318B (en) | 2021-03-23 |
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