CN104499626B - Spatial quadrilateral mesh structure of monolayer latticed shell - Google Patents
Spatial quadrilateral mesh structure of monolayer latticed shell Download PDFInfo
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- CN104499626B CN104499626B CN201410792452.8A CN201410792452A CN104499626B CN 104499626 B CN104499626 B CN 104499626B CN 201410792452 A CN201410792452 A CN 201410792452A CN 104499626 B CN104499626 B CN 104499626B
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Abstract
The invention discloses a novel spatial quadrilateral mesh structure of a monolayer latticed shell. The novel spatial quadrilateral mesh structure is characterized in that the monolayer latticed shell is a quadrilateral network, and nodes of the network include flexible connection nodes and rigid connection nodes. The mesh structure can gain better structural response with combination of 'resistance' and 'release' under the action of earthquake in comparison to a conventional triangular mesh or fully-rigid-connection quadrilateral mesh and is better in control effect of deformation and stress. Meanwhile, processing is simple due to the small number of nodes and rods; the appended structure is higher in applicability due to the small number of supports; the novel spatial quadrilateral mesh structure is good in response to earthquakes and temperature and is reasonable in structural stress; residual stress of the rods due to deformation is low, and the novel spatial quadrilateral mesh structure conforms to the standard requirements and is safe and reliable.
Description
Technical field
The present invention relates to the design field of wide span single layer reticulated shell stress and strain model.
Background technology
At present, complicated Long Span Roof Structures get more and more in China, and wherein single-layer latticed shell is because of the conjunction of its stress
Reason, rigidity are big, can cross over larger span, are applied widely the advantages of architectural image grace simultaneously.For monolayer
The stress and strain model form of reticulated shell, traditional is all network of triangle using more Kai Weite type, geodesic, three-way type etc.
Lattice or entirely just connect quadrilateral mesh.It is mainly characterized by, and flat in-plane stiffness is big, but the rod member quantity connecting at node is more, plus
Work is more complicated, high cost, simultaneously because its rigidity is larger, therefore also poor to the adaptability of earthquake, comprehensive the above, when across
Degree is larger, and geological process starts to control the making used time, using triangular mesh or entirely just to have connect quadrilateral mesh reasonable from structure stress
Unsatisfactory from the point of view of property, economy point.
Content of the invention
In order to overcome defect under some specific force environments for the above-mentioned triangular mesh, simultaneously ensure structure safe,
Rationally, economical, the present invention adopts a kind of Anomalistic space network of quadrilaterals of new stress and strain model form " coupling hardness with softness "
Lattice structure.This network has connect full quadrilateral mesh, under geological process, " resist " compared to traditional triangular mesh or just
" putting " combination can obtain more preferable structural response, more preferable to the control effect of deformation and stress, simultaneously because node and bar
Part negligible amounts, can obtain more preferable economic benefits.
The technical solution adopted for the present invention to solve the technical problems is：According to the arrangement form of structure, in rational area
Domain setting unit flexible connection（Hinged）Node, node is ensureing outside plane（With respect to reticulated shell plane）While rigidity, weaken
In-plane stiffness, has more preferable deformability under geological process.
A kind of single-layer lattice shell new spatial quadrilateral mesh structure, is characterized in that, single-layer lattice shell is tetragon network, constitutes
The node of network includes being flexibly connected node and rigid connection node.
Described flexible connection Node distribution is around described rigid connection node.
Set up flexible connection node in side laterally or longitudinally, and be flexibly connected Node distribution in rigid connection node
Outside.
Described flexible connection node is veneer hinged joint, welds one piece of connecting single board between rigid joint and rod member,
By veneer, rigid joint is linked together with rod member.
Described flexible connection node is bolted splice node, is connected by high-strength bolt between rigid joint and rod member, high
One end of strength bolt is connected with the side plate of rigid joint, and the other end of high-strength bolt is connected with the inner panel of Rod end.
The present invention compared with prior art, has advantages below：
（1）Number of nodes is few, and processing is simple；
（2）The rod member quantity that node connects is few, and rod member is short；
（3）Bearing is less, to accessory structure（As glass curtain wall, BAIYE etc.）The suitability higher；
（4）To the response of earthquake and temperature action well, structure stress is more reasonable；
（5）Rod member is little due to deforming the residual stress causing；
（6）Compliant requires, safe and reliable.
Brief description
Fig. 1 is the plane graph of the present invention；
Fig. 2 is flexible connection node one embodiment：Veneer hinged joint；
Fig. 3 is flexible connection another embodiment of node：Bolted splice node.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following examples are only used for clearly illustrating the present invention
Technical scheme, and can not be limited the scope of the invention with this.
As shown in figure 1, the single-layer lattice shell new spatial quadrilateral mesh structure of the present invention is tetragon network, constitute network
Node include being flexibly connected node and rigid connection node.Flexible connection Node distribution is around rigid connection node.
In other embodiments, only can set up flexible connection node in side laterally or longitudinally, and flexibility is even
Connect Node distribution outside rigid connection node.
The scope of flexible connection inserting knot can consider the impact to deformation and stress, geological process, makes node
Ensureing outside plane（With respect to reticulated shell plane）While rigidity, weaken in-plane stiffness so as to have under geological process preferably
Deformability.
Grid configuration adopts Anomalistic space quadrilateral mesh, and the arrangement form according to structure simultaneously, under geological process
Structural response and deformation characteristicses, arrange flexible connection point in rational region, " resisting " " putting " combines, thus significantly more efficient control
Deformation under earthquake and temperature action for the structure and stress.
The form of flexible connection node can include multiple, the such as veneer hinged joint of Fig. 2, is constituting the firm of roof system grid
Property weld one piece of connecting single board 13 between node 11 and rod member 12, by veneer 13, rigid joint 11 and rod member 12 are connected to one
Rise.By the flexible connection mode of this form, while ensureing in-plane stiffness, weaken Out-of Plane Stiffness, make to have outside face certain
Turning power, optimizing load transfer path.
As shown in figure 3, flexible connection node can also adopt bolted splice node, in the rigid joint constituting roof system grid
It is connected by high-strength bolt 14 between 11 with rod member 12, one end of high-strength bolt 14 is connected with the side of rigid joint 11, high-strength spiral shell
The other end of bolt 14 is connected with the inner panel 15 of rod member 12 end.During installation, threaded rod one end of high-strength bolt 14 is saved with rigidity
Point 11 is threaded, and the threaded rod other end of high-strength bolt 14 is threadeded with the inner panel 15 of rod member 12 end, and passes through nut
Threaded fixation with high-strength bolt 14.Pad can also be increased when nut is installed, carry out locking and reduce inner panel 15 surface
Abrasion.
The above is only the preferred embodiment of the present invention it is noted that ordinary skill people for the art
For member, on the premise of without departing from the technology of the present invention principle, some improvement can also be made and deform, these improve and deform
Also should be regarded as protection scope of the present invention.
Claims (4)
1. a kind of single-layer lattice shell quadrilateral space network, is characterized in that, single-layer lattice shell is tetragon network, constitutes network
Node includes being flexibly connected node and rigid connection node；
Set up flexible connection node in side laterally or longitudinally, and be flexibly connected Node distribution outside rigid connection node
Side.
2. single-layer lattice shell quadrilateral space network according to claim 1, is characterized in that, described flexible connection node
It is distributed in around described rigid connection node.
3. single-layer lattice shell quadrilateral space network according to claim 1, is characterized in that, described flexible connection node
For veneer hinged joint, weld one piece of connecting single board between rigid joint and rod member, by veneer by rigid joint with rod member even
It is connected together.
4. single-layer lattice shell quadrilateral space network according to claim 1, is characterized in that, described flexible connection node
For bolted splice node, it is connected by high-strength bolt between rigid joint and rod member, one end of high-strength bolt and rigid joint
Side plate connects, and the other end of high-strength bolt is connected with the inner panel of Rod end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410792452.8A CN104499626B (en) | 2014-12-19 | 2014-12-19 | Spatial quadrilateral mesh structure of monolayer latticed shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410792452.8A CN104499626B (en) | 2014-12-19 | 2014-12-19 | Spatial quadrilateral mesh structure of monolayer latticed shell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104499626A CN104499626A (en) | 2015-04-08 |
| CN104499626B true CN104499626B (en) | 2017-02-22 |
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| CN201410792452.8A Active CN104499626B (en) | 2014-12-19 | 2014-12-19 | Spatial quadrilateral mesh structure of monolayer latticed shell |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106592762A (en) * | 2017-01-25 | 2017-04-26 | 哈尔滨工业大学 | Space assembling type bolt-column joint |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2556424A1 (en) * | 1983-12-09 | 1985-06-14 | Legrand Pierre | Prefabricated multi-function element for a dismantleable braced structure |
| CN101302833B (en) * | 2008-07-02 | 2010-07-21 | 天津大学 | Chord branch barrel shell structure system |
| CN202248457U (en) * | 2011-10-13 | 2012-05-30 | 中国民航大学 | Wooden-structured, rib-ring patterned and single-layer spherical reticulated shell |
| CN203559492U (en) * | 2013-11-25 | 2014-04-23 | 哈尔滨工业大学 | CP-type node of assembly type spatial structure |
| CN204356969U (en) * | 2014-12-19 | 2015-05-27 | 苏州工业园区设计研究院股份有限公司 | Single-layer lattice shell new spatial network of quadrilaterals lattice structure |
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Address after: Suzhou Industrial Park Suzhou City, Jiangsu province 215126 Sheng Pu Zhen Jin Sheng Lu No. 12 Applicant after: ARTS GROUP CO., LTD. Address before: Suzhou Industrial Park Suzhou City, Jiangsu province 215126 Sheng Pu Zhen Jin Sheng Lu No. 12 Applicant before: Suzhou Industrial Park Design & Research Institute Co., Ltd. |
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