CN114277938A - Assembled space latticed shell structure based on space four-bar mechanism and preparation method thereof - Google Patents
Assembled space latticed shell structure based on space four-bar mechanism and preparation method thereof Download PDFInfo
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- CN114277938A CN114277938A CN202210000890.0A CN202210000890A CN114277938A CN 114277938 A CN114277938 A CN 114277938A CN 202210000890 A CN202210000890 A CN 202210000890A CN 114277938 A CN114277938 A CN 114277938A
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Abstract
The invention relates to an assembled space reticulated shell structure based on a space four-bar mechanism and a preparation method thereof, belonging to the technical field of buildings and comprising a plurality of reticulated shell structure units which are annularly connected, wherein each reticulated shell structure unit comprises a plurality of square steel tubes and a rod piece II, a support pull rod is arranged between the lower end of the rod piece II and the middle part of each square steel tube, annular pull rods in the horizontal direction are arranged below the corresponding square steel tubes, and a combined pin joint is arranged between each annular pull rod and each square steel tube. The method has the characteristics of simple structure, short construction period and low cost. The problem of site operation work load is solved. The standardized size of the latticed shell structural member is realized, and the storage, the transportation, the loading and the unloading and the installation are convenient.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to an assembled space reticulated shell structure based on a space four-bar mechanism and a preparation method thereof.
Background
The latticed shell structure is one of the most widely applied space structure forms of engineering, has good adaptability and superior technical and economic indexes, has advantages in the aspects of industrial production and construction, and is in accordance with the development trend of the current novel building industrialization in China. However, the existing space latticed shell structure has more rigid nodes, more node intersection rod pieces, large field welding workload, low construction speed and difficult guarantee of quality and precision.
In order to improve the engineering construction efficiency and reduce the resource consumption, a novel industrialized building system suitable for standardized design, industrialized production and assembled construction is researched and developed, and the novel industrialized building system becomes the inevitable direction for the development of the building industry in China. The support of national industrial policy and wide market demand are necessary conditions for developing building industrialization, but the first task for promoting building industrialization is to develop a building structure system suitable for industrial production and construction modes.
The utility model provides an assembled space latticed shell structure based on space four-bar linkage, this system is convenient for standardized design, batch production and assembly construction, is applicable to the room lid system of buildings such as various public buildings (like stadiums, exhibition hall, station room etc.) and industrial factory building, warehouse, fully accords with the demand and the trend of building industrialization of china.
Disclosure of Invention
The invention mainly solves the defects of complex structure, long construction period and high cost in the prior art, and provides an assembled space reticulated shell structure based on a space four-bar mechanism and a preparation method thereof. The problem of site operation work load is solved. The standardized size of the latticed shell structural member is realized, and the storage, the transportation, the loading and the unloading and the installation are convenient.
The technical problem of the invention is mainly solved by the following technical scheme:
the utility model provides an assembled space reticulated shell structure based on space four-bar linkage, is the hoop including a plurality of reticulated shell constitutional units and connects and form, the reticulated shell constitutional unit include a plurality of square steel pipes and member II, II lower extremes of member and square steel pipe middle part between be equipped with the support pull rod, square steel pipe below all be equipped with the annular pull rod that is the horizontal direction, annular pull rod and square steel pipe between be equipped with the combination pin joint. The support pull rod plays an arc-shaped supporting role of the assembled space reticulated shell structure of the space four-bar mechanism.
Preferably, a rod piece I is arranged between the middle part of the square steel pipe and the combined pin joint, and a shear hinge is arranged between the rod piece I and the square steel pipe.
Preferably, the combined pin joint is formed by combining a rotating pair, a connecting plate and a ball pin pair.
Preferably, the square steel tube, the rod piece I and the rod piece II can adopt rod pieces with the same specification, the square steel tube and the rod piece II are applied to different annular positions, and the square steel tube and the rod piece I are symmetrically distributed in a left-right mirror image mode.
A preparation method of an assembled space latticed shell structure based on a space four-bar mechanism comprises the following operation steps:
the first step is as follows: the combined pin joint is arranged on the square steel pipe, the rod piece I and the rod piece II on the ground, and the shear hinge is arranged between the square steel pipe and the rod piece I.
The second step is that: sliding and hoisting the structure assembled on site by using a crane, and installing a support pull rod between the lower end of the rod piece II and the middle part of the square steel pipe after the square steel pipe and the rod piece I deform to a specified angle;
the third step: and installing the annular pull rod after the installation of the support pull rod is completed.
The fourth step: and sequentially repeating the processes from the first step to the third step while gradually hoisting the latticed shell structure units.
The fifth step: and connecting and fixing the adjacent latticed shell structure units through connecting plates reserved by the combined pin joints, and finally forming an assembled spatial latticed shell structure of the spatial four-bar mechanism.
Preferably, the square steel pipe, the rod piece I and the rod piece II can adopt different section specifications at different parts of the latticed shell according to the vertical load, the wind load and the horizontal load of the latticed shell.
Preferably, the support pull rod, the rod piece I and the rod piece II form an in-plane triangular truss, and the annular pull rod, the square steel pipe and the rod piece I form the in-plane triangular truss. Although each node is hinged, the latticed shell structure adopts the stability of a triangle and has higher rigidity and bearing capacity.
The invention can achieve the following effects:
compared with the prior art, the assembled space reticulated shell structure based on the space four-bar mechanism and the preparation method thereof have the characteristics of simple structure, short construction period and low cost. The problem of site operation work load is solved. The standardized size of the latticed shell structural member is realized, and the storage, the transportation, the loading and the unloading and the installation are convenient.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of a reticulated shell structural unit of the present invention.
Fig. 3 is a schematic view of the assembled latticed shell structural units in the collapsed state of the present invention.
Fig. 4 is a schematic view of the assembled latticed shell structural units in an unfolded state of the present invention.
In the figure: the device comprises a latticed shell structure unit 1, a square steel pipe 2, a rod piece I3, an annular pull rod 4, a rod piece II 5, a combined pin joint 6, a supporting pull rod 7, a scissor hinge 8 and a crane 9.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example (b): as shown in fig. 1-4, an assembled space reticulated shell structure based on a space four-bar mechanism comprises 34 reticulated shell structure units 1 which are formed by circumferential connection, wherein each reticulated shell structure unit 1 comprises 7 square steel pipes 2 and a rod piece II 5, a support pull rod 7 is arranged between the lower end of each rod piece II 5 and the middle of each square steel pipe 2, annular pull rods 4 in the horizontal direction are arranged below the square steel pipes 2, and a combined pin joint 6 is arranged between each annular pull rod 4 and each square steel pipe 2. The combined pin joint 6 is formed by combining a revolute pair, a connecting plate and a ball pin pair. A rod piece I3 is arranged between the middle part of the square steel pipe 2 and the combined pin joint 6, and a shear hinge 8 is arranged between the rod piece I3 and the square steel pipe 2.
Square steel pipe 2, member I3, member II 5 all can adopt the member of the same specification, and square steel pipe 2 and II 5 application of member are in different hoop positions, and square steel pipe 2 and member I3 are mirror symmetry about and distribute.
A preparation method of an assembled space latticed shell structure based on a space four-bar mechanism comprises the following operation steps:
the first step is as follows: a combined pin joint 6 is arranged on the square steel pipe 2, the rod piece I3 and the rod piece II 5 on the ground, and a shear hinge 8 is arranged between the square steel pipe 2 and the rod piece I3.
According to the vertical load, the wind load and the horizontal load of the latticed shell, the square steel pipe 2, the rod piece I3 and the rod piece II 5 can adopt different section specifications at different parts of the latticed shell.
The second step is that: and (3) sliding and hoisting the structure assembled on site by using a crane 9, and installing a support pull rod 7 between the lower end of the rod piece II 5 and the middle part of the square steel pipe 2 after the square steel pipe 2 and the rod piece I3 deform to a specified angle. The support pull rods 7, the rod pieces I3 and the rod pieces II 5 form an in-plane triangular truss. The combined pin joint 6 between the rod I3 and the rod II 5 can change from a contraction state to an expansion state by adopting a ball pin pair.
The third step: and after the supporting pull rod 7 is installed, the annular pull rod 4 is installed. The annular pull rod 4, the square steel pipe 2 and the rod piece I3 form an in-plane triangular truss.
The fourth step: the first to third steps are repeated in sequence while gradually lifting the latticed shell structural unit 1.
The fifth step: and connecting and fixing the adjacent reticulated shell structure units 1 through connecting plates reserved by the combined pin joint 6, and finally forming an assembled spatial reticulated shell structure of the spatial four-bar mechanism.
In summary, the fabricated space latticed shell structure based on the space four-bar mechanism and the preparation method thereof have the characteristics of simple structure, short construction period and low cost. The problem of site operation work load is solved. The standardized size of the latticed shell structural member is realized, and the storage, the transportation, the loading and the unloading and the installation are convenient.
The above description is only an embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any changes or modifications within the scope of the present invention by those skilled in the art are covered by the present invention.
Claims (7)
1. The utility model provides an assembled space latticed shell structure based on space four-bar linkage which characterized in that: be the hoop including a plurality of latticed shell constitutional unit (1) and connect and constitute, latticed shell constitutional unit (1) include a plurality of square steel pipe (2) and member II (5), member II (5) lower extreme and square steel pipe (2) middle part between be equipped with support pull rod (7), square steel pipe (2) below all be equipped with annular pull rod (4) that are the horizontal direction, annular pull rod (4) and square steel pipe (2) between be equipped with combination pin joint (6).
2. The assembled spatial reticulated shell structure based on a spatial four-bar mechanism of claim 1, wherein: a rod piece I (3) is arranged between the middle of the square steel pipe (2) and the combined pin joint (6), and a shear hinge (8) is arranged between the rod piece I (3) and the square steel pipe (2).
3. The assembled spatial reticulated shell structure based on a spatial four-bar mechanism of claim 2, wherein: square steel pipe (2), member I (3), member II (5) all can adopt the member of the same specification, square steel pipe (2) and member II (5) application are in different hoop positions, and mirror image formula symmetric distribution about square steel pipe (2) and member I (3) are.
4. The spatial latticed shell structure assembled based on spatial four-bar mechanism according to claim 1 or 2, wherein: the combined pin joint (6) is formed by combining a revolute pair, a connecting plate and a ball pin pair.
5. A preparation method of an assembled space reticulated shell structure based on a space four-bar mechanism is characterized by comprising the following operation steps:
the first step is as follows: the combined pin joint (6) is arranged on the square steel pipe (2), the rod piece I (3) and the rod piece II (5) on the ground, and the shear type hinge (8) is arranged between the square steel pipe (2) and the rod piece I (3);
the second step is that: sliding and hoisting the structure assembled on site by using a crane (9), and installing a support pull rod (7) between the lower end of a rod piece II (5) and the middle part of the square steel pipe (2) after the square steel pipe (2) and the rod piece I (3) deform to a specified angle;
the third step: after the supporting pull rod (7) is installed, the annular pull rod (4) is installed;
the fourth step: the processes from the first step to the third step are sequentially repeated while gradually hoisting the latticed shell structure unit (1);
the fifth step: and connecting and fixing the adjacent reticulated shell structure units (1) through a connecting plate reserved by the combined pin joint (6), and finally forming an assembled spatial reticulated shell structure of the spatial four-bar mechanism.
6. The method for preparing the fabricated spatial latticed shell structure based on the spatial four-bar mechanism according to claim 5, wherein: according to the vertical load, the wind load and the horizontal load of the latticed shell, the square steel pipe (2), the rod piece I (3) and the rod piece II (5) can adopt different section specifications at different parts of the latticed shell.
7. The method for preparing the fabricated spatial latticed shell structure based on the spatial four-bar mechanism according to claim 5, wherein: the supporting pull rod (7), the rod piece I (3) and the rod piece II (5) form an in-plane triangular truss, and the annular pull rod (4), the square steel pipe (2) and the rod piece I (3) form the in-plane triangular truss.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210000890.0A CN114277938B (en) | 2022-01-04 | 2022-01-04 | Assembled space reticulated shell structure based on space four-bar mechanism and preparation method thereof |
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| CN202210000890.0A CN114277938B (en) | 2022-01-04 | 2022-01-04 | Assembled space reticulated shell structure based on space four-bar mechanism and preparation method thereof |
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| CN114277938A true CN114277938A (en) | 2022-04-05 |
| CN114277938B CN114277938B (en) | 2023-05-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115853125A (en) * | 2023-02-24 | 2023-03-28 | 山西建筑工程集团有限公司 | Circular conical dome steel structure with upper opening and mounting method thereof |
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| CN201172903Y (en) * | 2008-04-11 | 2008-12-31 | 晟元集团有限公司 | Partial double-layer string sphere net casing |
| CN101718115A (en) * | 2009-11-20 | 2010-06-02 | 徐玉平 | Method for mounting wide-span cylindrical reticulated shell |
| CN204590245U (en) * | 2015-05-07 | 2015-08-26 | 云南建工安装股份有限公司 | The double-deck bolt sphere latticed shell structure of column |
| CN105756192A (en) * | 2016-03-17 | 2016-07-13 | 东南大学 | Foldable cylindrical latticed shell structure |
| CN106437170A (en) * | 2016-04-17 | 2017-02-22 | 北京工业大学 | Installation method for annular cross cable system supporting dome structure |
| CN107386513A (en) * | 2017-07-19 | 2017-11-24 | 天津大学 | A kind of big opening type super-span suspended-dome structure |
| CN214219966U (en) * | 2020-04-08 | 2021-09-17 | 浙江省建筑设计研究院 | Oval-like inner-opening large-span outer four-trimming double-roof laminated latticed shell system |
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2022
- 2022-01-04 CN CN202210000890.0A patent/CN114277938B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201172903Y (en) * | 2008-04-11 | 2008-12-31 | 晟元集团有限公司 | Partial double-layer string sphere net casing |
| CN101718115A (en) * | 2009-11-20 | 2010-06-02 | 徐玉平 | Method for mounting wide-span cylindrical reticulated shell |
| CN204590245U (en) * | 2015-05-07 | 2015-08-26 | 云南建工安装股份有限公司 | The double-deck bolt sphere latticed shell structure of column |
| CN105756192A (en) * | 2016-03-17 | 2016-07-13 | 东南大学 | Foldable cylindrical latticed shell structure |
| CN106437170A (en) * | 2016-04-17 | 2017-02-22 | 北京工业大学 | Installation method for annular cross cable system supporting dome structure |
| CN107386513A (en) * | 2017-07-19 | 2017-11-24 | 天津大学 | A kind of big opening type super-span suspended-dome structure |
| CN214219966U (en) * | 2020-04-08 | 2021-09-17 | 浙江省建筑设计研究院 | Oval-like inner-opening large-span outer four-trimming double-roof laminated latticed shell system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115853125A (en) * | 2023-02-24 | 2023-03-28 | 山西建筑工程集团有限公司 | Circular conical dome steel structure with upper opening and mounting method thereof |
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