CN109914610B - Implementation system and method for improving continuous collapse resistance of space grid structure - Google Patents
Implementation system and method for improving continuous collapse resistance of space grid structure Download PDFInfo
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- CN109914610B CN109914610B CN201910214049.XA CN201910214049A CN109914610B CN 109914610 B CN109914610 B CN 109914610B CN 201910214049 A CN201910214049 A CN 201910214049A CN 109914610 B CN109914610 B CN 109914610B
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Abstract
The invention discloses a realization system and a realization method for improving the continuous collapse resistance of a space grid structure, wherein the realization system comprises a plurality of central nodes, a first connecting pipe is arranged between every two adjacent central nodes, a liner pipe is arranged on each central node, a first limiting block is arranged on each first connecting pipe, and a second limiting block is arranged on each liner pipe, wherein the first limiting block is matched with the second limiting block.
Description
Technical Field
The invention belongs to the field of space grid structures, and relates to a system and a method for improving the continuous collapse resistance of a space grid structure.
Background
The characteristics of light weight, firmness, large space and transparency of the space grid structure are increasingly applied under the continuous exploration and innovation of buildings and structural designers, however, the connection of each central node in the existing space grid structure adopts rigid connection, the deformation displacement is small, and the continuous collapse resistance of the space grid structure is greatly reduced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a system and a method for improving the continuous collapse resistance of a space grid structure, and the system and the method can effectively improve the continuous collapse resistance of the space grid structure.
In order to achieve the purpose, the implementation system for improving the continuous collapse resistance of the space grid structure comprises a plurality of central nodes, a first connecting pipe is arranged between every two adjacent central nodes, a liner pipe is arranged on each central node, a first limiting block is arranged on each first connecting pipe, a second limiting block is arranged on each liner pipe, and the first limiting blocks are matched with the second limiting blocks.
When the catenary resistance of the space grid structure needs to be improved, the first limiting block is fixed on the inner wall of the first connecting pipe, the second limiting block is fixed on the outer wall of the liner pipe, the first limiting block is located between the second limiting block and the central node, the liner pipe is inserted into the first connecting pipe, the end portion of the first connecting pipe is connected with the central node in an initial state, a gap is reserved between the first limiting block and the second limiting block, and the first limiting block is clamped with the second limiting block in a stretching process when the first connecting pipe is broken.
When the compression resistance and stability of the space grid structure need to be improved, the first limiting block is positioned on the outer wall of the first connecting pipe, the second limiting block is positioned on the inner wall of the liner pipe, the first limiting block is positioned between the second limiting block and the central node, the liner pipe is sleeved on the first connecting pipe, in an initial state, the end part of the first connecting pipe is separated from the central node, the first limiting block is clamped with the second limiting block, the first connecting pipe is sleeved with the second connecting pipe, and the end part of the second connecting pipe is connected with the central node; when the first connecting pipe is pressed or bent, the first limiting block is separated from the second limiting block, and the end part of the first connecting pipe is contacted with the central node.
The number of the first limiting blocks is more than or equal to 2, and the first limiting blocks are uniformly distributed along the circumferential direction.
The number of the first limiting blocks is more than or equal to 2, and the first limiting blocks are uniformly distributed along the circumferential direction.
The implementation method for improving the progressive collapse resistance of the space grid structure comprises the following steps:
when the first connecting pipe is in a stretching process, when the connecting position of the first connecting pipe and the central node is broken, the first limiting block slides to the second limiting block and is finally clamped with the second limiting block, so that the stretching force on the first connecting pipe is transmitted to the central node through the first limiting block, the second limiting block and the liner pipe, the deformation capacity between adjacent central nodes is improved, and finally the liner pipe is broken along with the increase of deformation.
The implementation method for improving the progressive collapse resistance of the space grid structure comprises the following steps:
in the compression deformation process of the second connecting pipe, the distance between the adjacent central nodes is reduced, so that the distance between the first connecting pipe and the central nodes is gradually reduced and is finally contacted with the central nodes, and the first connecting pipe and the second connecting pipe jointly participate in the compression deformation between the adjacent central nodes.
The invention has the following beneficial effects:
when the system and the method for improving the progressive collapse resistance of the space grid structure are operated specifically, a first connecting pipe is arranged between every two adjacent central nodes, a lining pipe is arranged on each central node, a first limiting block is arranged on each first connecting pipe, a second limiting block is arranged on each lining pipe, and the first limiting blocks are matched with the second limiting blocks, so that the lining pipes and the first connecting pipes participate in stress between the adjacent central nodes, the progressive collapse resistance of the space grid structure is improved, and the system and the method are simple in structure, convenient to operate and high in practicability.
Drawings
FIG. 1 is a schematic diagram of a modification process according to the first embodiment;
FIG. 2 is a graph comparing the performance of example one with the prior art;
FIG. 3 is a schematic diagram of a modification process in the second embodiment;
FIG. 4 is a graph comparing the performance of example two with that of the prior art.
Wherein, 1 is the first connecting pipe, 2 is the bushing pipe, 3 is first stopper, 4 is the second stopper, 5 is the second connecting pipe.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1, the system for improving the progressive collapse resistance of the spatial grid structure according to the present invention includes a plurality of central nodes, a first connecting pipe 1 is disposed between two adjacent central nodes, a liner pipe 2 is disposed on each central node, a first limiting block 3 is disposed on the first connecting pipe 1, and a second limiting block 4 is disposed on the liner pipe 2, wherein the first limiting block 3 is matched with the second limiting block 4.
Example one
Referring to fig. 1, in this embodiment, the catenary resistance of the space grid structure needs to be improved, wherein the first limiting block 3 is fixed on the inner wall of the first connecting pipe 1, the second limiting block 4 is fixed on the outer wall of the liner pipe 2, the first limiting block 3 is located between the second limiting block 4 and the central node, and the liner pipe 2 is inserted into the first connecting pipe 1, in an initial state, the end of the first connecting pipe 1 is connected with the central node, a gap is formed between the first limiting block 3 and the second limiting block 4, and in a stretching process, when the first connecting pipe 1 is broken, the first limiting block 3 is connected with the second limiting block 4 in a clamping manner, wherein the number of the first limiting blocks 3 is greater than or equal to 2, and the first limiting blocks 3 are uniformly distributed along the circumferential direction.
The implementation method for improving the progressive collapse resistance of the space grid structure comprises the following steps: in the stretching process of the first connecting pipe 1, when the connecting position of the first connecting pipe 1 and the central node is broken, the first limiting block 3 slides to the second limiting block 4 and is finally clamped with the second limiting block 4, so that the stretching force on the first connecting pipe 1 is transmitted to the central node through the first limiting block 3, the second limiting block 4 and the liner pipe 2, the deformation capacity between adjacent central nodes is improved, and finally the liner pipe 2 is broken along with the increase of deformation.
The prior art of fig. 2 is a rigid tube, and as can be seen in fig. 2, this embodiment is able to withstand greater deformation displacements and is able to withstand greater tensile loading forces, and therefore is able to absorb more of the energy released by rod failure.
Example two
Referring to fig. 3, in this embodiment, the compression stability of the space grid structure needs to be improved, the first limiting block 3 is located on the outer wall of the first connecting pipe 1, the second limiting block 4 is located on the inner wall of the liner pipe 2, the first limiting block 3 is located between the second limiting block 4 and the central node, and the liner pipe 2 is sleeved on the first connecting pipe 1, in an initial state, the end of the first connecting pipe 1 is separated from the central node, the first limiting block 3 is clamped with the second limiting block 4, the first connecting pipe 1 is sleeved with the second connecting pipe 5, wherein the end of the second connecting pipe 5 is connected with the central node; when the first connecting pipe 1 is pressed or flexed, the first limiting blocks 3 are separated from the second limiting blocks 4, the end part of the first connecting pipe 1 is in contact with the central node, wherein the number of the first limiting blocks 3 is more than or equal to 2, and the first limiting blocks 3 are uniformly distributed along the circumferential direction.
The implementation method for improving the progressive collapse resistance of the space grid structure comprises the following steps:
in the compression deformation process of the second connection pipe 5, the distance between adjacent center nodes is reduced, so that the distance between the first connection pipe 1 and the center node is gradually reduced and finally contacts with the center node, and the first connection pipe 1 and the second connection pipe 5 jointly participate in the compression deformation between the adjacent center nodes.
The prior art in fig. 4 is a rigid pipe, and it can be seen from fig. 4 that, due to the existence of the first connecting pipe 1, the rod destabilization process is greatly changed, the peak load is increased, and the corresponding peak position is also significantly improved, so that sudden destabilization damage can be controlled in advance.
Claims (4)
1. A realization system for improving the continuous collapse resistance of a space grid structure is characterized by comprising a plurality of central nodes, wherein a first connecting pipe (1) is arranged between every two adjacent central nodes, each central node is provided with a liner pipe (2), a first limiting block (3) is arranged on each first connecting pipe (1), a second limiting block (4) is arranged on each liner pipe (2), and the first limiting blocks (3) are matched with the second limiting blocks (4);
when the catenary resistance of the space grid structure needs to be improved, a first limiting block (3) is fixed on the inner wall of a first connecting pipe (1), a second limiting block (4) is fixed on the outer wall of a liner pipe (2), the first limiting block (3) is located between the second limiting block (4) and a central node, the liner pipe (2) is inserted into the first connecting pipe (1), the end part of the first connecting pipe (1) is connected with the central node in an initial state, a gap is reserved between the first limiting block (3) and the second limiting block (4), and the first limiting block (3) is clamped with the second limiting block (4) when the first connecting pipe (1) is broken in a stretching process;
when the compression resistance stability of the space grid structure needs to be improved, the first limiting block (3) is located on the outer wall of the first connecting pipe (1), the second limiting block (4) is located on the inner wall of the liner pipe (2), the first limiting block (3) is located between the second limiting block (4) and the central node, the liner pipe (2) is sleeved on the first connecting pipe (1), in an initial state, the end portion of the first connecting pipe (1) is separated from the central node, the first limiting block (3) is clamped with the second limiting block (4), the second connecting pipe (5) is sleeved in the first connecting pipe (1), and the end portion of the second connecting pipe (5) is connected with the central node; when the first connecting pipe (1) is pressed or bent, the first limiting block (3) is separated from the second limiting block (4), and the end part of the first connecting pipe (1) is in contact with the central node.
2. The system for improving the progressive collapse resistance of the spatial grid structure according to claim 1, wherein the number of the first limiting blocks (3) is greater than or equal to 2, and the first limiting blocks (3) are uniformly distributed along the circumferential direction.
3. An implementation method for improving the progressive collapse resistance of a spatial grid structure is characterized in that the catenary resistance of the spatial grid structure needs to be improved, and the implementation system for improving the progressive collapse resistance of the spatial grid structure based on the claim 1 comprises the following steps:
in the stretching process of the first connecting pipe (1), when the connecting position of the first connecting pipe (1) and the central node is broken, the first limiting block (3) slides towards the second limiting block (4) and is finally clamped with the second limiting block (4), so that the stretching force on the first connecting pipe (1) is transmitted to the central node through the first limiting block (3), the second limiting block (4) and the liner pipe (2), the deformation capacity between adjacent central nodes is improved, and finally the liner pipe (2) is broken along with the increase of deformation.
4. An implementation method for improving the progressive collapse resistance of a spatial grid structure is characterized in that the compression stability of the spatial grid structure needs to be improved, and the implementation system for improving the progressive collapse resistance of the spatial grid structure based on the claim 1 comprises the following steps:
in the compression deformation process of the second connecting pipe (5), the distance between the adjacent central nodes is reduced, so that the distance between the first connecting pipe (1) and the central nodes is gradually reduced and finally the first connecting pipe (1) and the second connecting pipe (5) are in contact with the central nodes, and the first connecting pipe (1) and the second connecting pipe (5) jointly participate in the compression deformation between the adjacent central nodes.
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| CN201910214049.XA CN109914610B (en) | 2019-03-20 | 2019-03-20 | Implementation system and method for improving continuous collapse resistance of space grid structure |
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| CN201910214049.XA CN109914610B (en) | 2019-03-20 | 2019-03-20 | Implementation system and method for improving continuous collapse resistance of space grid structure |
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| CN109914610A CN109914610A (en) | 2019-06-21 |
| CN109914610B true CN109914610B (en) | 2020-05-19 |
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| RU2466243C1 (en) * | 2011-04-14 | 2012-11-10 | Государственное образовательное учреждение высшего профессионального образования "Брянская государственная инженерно-технологическая академия" | Multispan two-storied transverse frame of building frame |
| CN102979179A (en) * | 2012-11-28 | 2013-03-20 | 清华大学 | Steel pipe-reinforced concrete laminated framework structural system |
| JP3190033U (en) * | 2014-01-30 | 2014-04-10 | 株式会社巴コーポレーション | Joint structure of truss beam and main column |
| 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 |
| WO2016108164A1 (en) * | 2014-12-30 | 2016-07-07 | Universidad Ces | Deformable rigid structure |
| CN106930590A (en) * | 2016-09-21 | 2017-07-07 | 中国地震局工程力学研究所 | New spatial network ball node device with damping function |
| CN108756282A (en) * | 2018-05-04 | 2018-11-06 | 河海大学 | A kind of bracing means and its installation method improving progressive collapse-resisting frame structure ability |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7896016B2 (en) * | 2008-10-17 | 2011-03-01 | Golden Season Pte Ltd | Hub assembly |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2466243C1 (en) * | 2011-04-14 | 2012-11-10 | Государственное образовательное учреждение высшего профессионального образования "Брянская государственная инженерно-технологическая академия" | Multispan two-storied transverse frame of building frame |
| CN102979179A (en) * | 2012-11-28 | 2013-03-20 | 清华大学 | Steel pipe-reinforced concrete laminated framework structural system |
| JP3190033U (en) * | 2014-01-30 | 2014-04-10 | 株式会社巴コーポレーション | Joint structure of truss beam and main column |
| 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 |
| WO2016108164A1 (en) * | 2014-12-30 | 2016-07-07 | Universidad Ces | Deformable rigid structure |
| CN106930590A (en) * | 2016-09-21 | 2017-07-07 | 中国地震局工程力学研究所 | New spatial network ball node device with damping function |
| CN108756282A (en) * | 2018-05-04 | 2018-11-06 | 河海大学 | A kind of bracing means and its installation method improving progressive collapse-resisting frame structure ability |
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Effective date of registration: 20210708 Address after: 710043 No. 5 happy South Road, Xincheng District, Shaanxi, Xi'an Patentee after: Xi'an Huaqing science and education industry (Group) Co.,Ltd. Address before: 710055 Yanta Road 13, Xi'an City, Shaanxi Province Patentee before: XIAN University OF ARCHITECTURE AND TECHNOLOG |
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