CN206468032U - Spatial mesh structure bolted spherical node reinforcement of weld device - Google Patents
Spatial mesh structure bolted spherical node reinforcement of weld device Download PDFInfo
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- CN206468032U CN206468032U CN201621262272.XU CN201621262272U CN206468032U CN 206468032 U CN206468032 U CN 206468032U CN 201621262272 U CN201621262272 U CN 201621262272U CN 206468032 U CN206468032 U CN 206468032U
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- bolt
- node
- bolted spherical
- steel
- outsourcing
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Abstract
The utility model discloses a kind of spatial mesh structure bolted spherical node reinforcement of weld device, it is related to spatial mesh structure bolted spherical node reinforcement of weld technical field.The utility model includes the bolted spherical node that is made up of bolt sphere, high-strength bolt, sleeve and steel pipe, and sleeve is not tightened or when node bearing capacity is not enough at node, and outsourcing component is symmetrically welded with node；Outsourcing component is evenly arranged between bolt sphere and steel pipe；One end of each outsourcing component and bolt ball bonding, the other end and steel-pipe welding.Advantage：Outsourcing component and the purpose of the common stress of former high-strength bolt are realized, rack bolt ball node strengthening quality is improved, node bearing capacity is improved；This method is simple to operate, in-site installation, applied widely, saves material, workable.
Description
Technical field
The utility model is related to spatial mesh structure bolted spherical node reinforcement of weld technical field, is specifically a kind of empty
Between network bolted spherical node reinforcement of weld method.
Background technology
The parts such as bolted spherical node Ying Youqiu, high-strength bolt, sleeve, trip bolt, conehead or shrouding are constituted, and are used for
Connect the space structure steel tube member bar such as rack and Double-level Reticulated Shell.Should be true by tension member internal force from the diameter of high-strength bolt
Fixed, the high-strength bolt diameter of compression member can be tried to achieve after the diameter of bolt by internal force design load absolute value, subtracted by diameter of bolt series
Few 1-3 differential.It can be seen from bolted spherical node connects loading characteristic, the axial compressive force of compression member mainly passes through socket end
Face pressure-bearing transmission, bolt mainly plays connection function；Tension member mainly transmits pulling force by bolt, and bolt is main stress zero
Part.Therefore, the quality of connection of high-strength bolt has critically important influence to the bearing capacity of rod member for grid.
《Code for acceptance of construction quality of steel structures》（GB50205）Middle regulation：After the completion of grid structure with bolt-sphere joints is always spelled,
High-strength bolt should be fastenedly connected with ball node, and the reach that high-strength bolt is screwed into bolt sphere is no less than 1.0d, and (d is
The diameter of bolt), junction should not have gap, loosening etc. and not tighten situation.But in actually detected middle discovery, bolted spherical node
It is commonplace that place's bolt does not tighten situation.Bolt is not tightened, and when rod member tension, ultimate bearing capacity of joints does not reach design requirement, together
When influence rack installation quality, cause malformation to increase.
Further, since the reason such as construction quality reason or working load increase, causes node bearing capacity to be unsatisfactory for design
It is required that, it is also often to occur.
The content of the invention
The utility model provides a kind of spatial mesh structure bolted spherical node reinforcement of weld device, improves rack bolt ball-joint
Point bearing capacity.
The utility model is realized with following technical scheme：A kind of spatial mesh structure bolted spherical node reinforcement of weld dress
Put, outsourcing component is symmetrically welded with the bolted spherical node being made up of bolt sphere, high-strength bolt, sleeve and steel pipe；Outsourcing
Component is evenly arranged between bolt sphere and steel pipe；One end of each outsourcing component and bolt ball bonding, the other end and steel pipe
Welding.
The beneficial effects of the utility model：Outsourcing component and the purpose of the common stress of former high-strength bolt are realized, rack is improved
Bolted spherical node bearing capacity, it is possible to calculate the node bearing capacity after reinforcing；This method is simple to operate, scene peace
Dress, it is applied widely, material is saved, it is workable.
Brief description of the drawings
Fig. 1 is structural representation when being tightened at bolted spherical node；
Fig. 2 is structural representation when being tightened when not tightened at bolted spherical node；
Fig. 3 is the utility model joint reinforcing schematic diagram；
Fig. 4 is Fig. 3 A-A sectional views；
Fig. 5 is Fig. 3 B-B sectional views；
Fig. 6 is Fig. 5 C-C sectional views；
Fig. 7 is outsourcing element structure schematic diagram；
In figure：1st, bolt sphere, 2, high-strength bolt, 3, sleeve, 4, steel pipe, 5, outsourcing component.
Embodiment
Bolted spherical node should be made up of parts such as bolt sphere 1, high-strength bolt 2, sleeve 3, steel pipes 4, for connecting rack
With the space structure steel tube member bar such as Double-level Reticulated Shell.Sleeve 3 is fixed on the end of steel pipe 4, and high-strength bolt 2 sequentially passes through steel pipe 4, set
Cylinder is connected with the screw in bolt sphere 1.Sleeve 3 is Hexagonal jacket, to enable the high-strength bolt 2 on steel pipe head to be closely screwed in
Designed in the screw of bolt sphere 1.
See when bolted spherical node is normally fastened and see Fig. 2 when bolt is not tightened at Fig. 1, bolted spherical node.When high-strength bolt not
When tightening, sleeve is in bearing capacity reduction at loosening state, node.
As shown in figure 3, the bolted spherical node being made up of bolt sphere 1, high-strength bolt 2, sleeve 3 and steel pipe 4, at node
When sleeve is not tightened or node bearing capacity is not enough, outsourcing component 5 is symmetrically welded with node；Outsourcing component 5 is evenly arranged
Between bolt sphere and steel pipe；One end of each outsourcing component 5 and bolt ball bonding, the other end and steel-pipe welding.
As shown in fig. 7, outsourcing component is steel plate, steel plate one end is processed into flat segments, along node at steel pipe axis direction
With steel-pipe welding；Bolt sphere is brought into close contact and then welded at the other end processing camber, with node.Using the steel plate of the shape,
Steel plate and the bolt sphere at node and the accurate connection of rod member can be realized, is easy to reinforce the calculating of posterior nodal point bearing capacity.
Between outsourcing component and bolt sphere, three face weld all arounds are used between outsourcing component and steel pipe, as Figure 4-Figure 6.
Outsourcing component can have 2 in the present embodiment, it is possibility to have 4, it is ensured that node uniaxial force.
The component do not tightened to bolt, should first be fastened before reinforcing, and code requirement is not met still after such as can not fastening or fasten,
Consider further that carry out Design of Reinforcement.
1）Bearing capacity calculation when high-strength bolt is not tightened
When bolt is not tightened, high-strength bolt actual carrying capacity≤
In formula,The net sectional area of-high-strength bolt, by table 5.3.4 values in JGJ7-2010
The tensile strength design load of-high-strength bolt after heat treatment, to 10.9 grades, takes 430N/mm2, to 9.8 grades,
Take 385 N/mm2
Bearing capacity reduces coefficient ,≤1 when-high-strength bolt is not tightened
2）Outsourcing element bearing capacity is calculated
Outsourcing component is connected with steel-pipe welding at node and bolt sphere using angle welding, and the Size of welds of angle welding should be accorded with
Close following regulation：
1）As thickness of steel pipe tcDuring≤4mm, tc≤hf≤1.5tc
2) t is worked asc＞ 4mm, tc＜ hf≤1.2tc
Then, outsourcing component and steel-pipe welding section bearing capacity are N21=
In formula, n- outsourcing number of components is preferably arranged symmetrically
- angle welding shearing strength
- angle welding computational length,=cos
- angle welding computational length, takes physical length to subtract 2h every angle weldingf
- outsourcing component and steel pipe angle
Outsourcing component and bolt sphere welding section bearing capacity N22=
In formula, n- outsourcing number of components, suitable logarithm arrangement
- angle welding shearing strength
- angle welding computational length,=cos
- angle welding computational length, takes physical length to subtract 2h every angle weldingf
Angle between-outsourcing component and bolt sphere
- angle welding strength failure criterion enhancement coefficient, to bearing static load and bearing the structure of dynamic load indirectly, takes
1.22；1.0 are taken to the structure for directly bearing dynamic load.
Outside steel pipe bearing capacity N itself23=
In formula,- outsourcing component tensile strength
A- outsourcings member section is accumulated
In summary, outsourcing component load-bearing ability N2=min ﹛ N21, N22, N23﹜
3）Reinforce posterior nodal point bearing capacity calculation
After reinforcing, ultimate bearing capacity of joints calculation formula is：
≥
In formula,- strenthening member strength reduction factor, 0.85 is taken to I, II class welded unit, and III, IV takes 0.9.
The steel plate at four pieces of certain thick bottoms is taken, in factory process into Fig. 7 shape, is symmetrically welded at and treats on the outside of reinforcing joint,
Steel plate one end and bolt ball bonding, the other end and steel-pipe welding, reach steel plate and the purpose of the common stress of former high-strength bolt.According to
Result of calculation, it would however also be possible to employ two blocks of steel plates, is preferably symmetrically welded, it is ensured that node uniaxial force.
Claims (4)
1. a kind of spatial mesh structure bolted spherical node reinforcement of weld device, it is characterised in that：By bolt sphere, high-strength bolt,
Outsourcing component is symmetrically welded with the bolted spherical node that sleeve and steel pipe are constituted；Outsourcing component is evenly arranged in bolt sphere and steel
Between pipe；One end of each outsourcing component and bolt ball bonding, the other end and steel-pipe welding.
2. spatial mesh structure bolted spherical node reinforcement of weld device according to claim 1, it is characterised in that：Outsourcing
Component is steel plate, and flat segments are processed into steel plate one end, along node at steel pipe axis direction and steel-pipe welding；The other end is processed into
Bolt sphere is brought into close contact and then welded at arc, with node.
3. spatial mesh structure bolted spherical node reinforcement of weld device according to claim 1 or 2, it is characterised in that：Institute
The outsourcing component stated has 2 or 4, is arranged symmetrically.
4. spatial mesh structure bolted spherical node reinforcement of weld device according to claim 1 or 2, it is characterised in that：Outside
Between bag component and bolt sphere, three face weld all arounds are used between outsourcing component and steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621262272.XU CN206468032U (en) | 2016-11-24 | 2016-11-24 | Spatial mesh structure bolted spherical node reinforcement of weld device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621262272.XU CN206468032U (en) | 2016-11-24 | 2016-11-24 | Spatial mesh structure bolted spherical node reinforcement of weld device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206468032U true CN206468032U (en) | 2017-09-05 |
Family
ID=59710308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621262272.XU Expired - Fee Related CN206468032U (en) | 2016-11-24 | 2016-11-24 | Spatial mesh structure bolted spherical node reinforcement of weld device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206468032U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952204A (en) * | 2018-08-30 | 2018-12-07 | 安徽省建筑科学研究设计院 | Connection structure is used in a kind of reinforcing of rack |
| CN108951846A (en) * | 2018-07-30 | 2018-12-07 | 上海同派建筑科技有限公司 | A kind of reinforcing construction and installation method of single-layer lattice shell node |
| CN109779061A (en) * | 2019-02-25 | 2019-05-21 | 辽宁工程技术大学 | A new type of energy-consuming node applied to large-span grid structure |
| CN110512738A (en) * | 2019-08-29 | 2019-11-29 | 同济大学 | A prestressed polyurethane-aluminum alloy composite member |
| CN113235731A (en) * | 2021-05-11 | 2021-08-10 | 太原理工大学 | Floor position adjustable assembled welding clean shot node reinforcing apparatus |
-
2016
- 2016-11-24 CN CN201621262272.XU patent/CN206468032U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108951846A (en) * | 2018-07-30 | 2018-12-07 | 上海同派建筑科技有限公司 | A kind of reinforcing construction and installation method of single-layer lattice shell node |
| CN108952204A (en) * | 2018-08-30 | 2018-12-07 | 安徽省建筑科学研究设计院 | Connection structure is used in a kind of reinforcing of rack |
| CN108952204B (en) * | 2018-08-30 | 2024-04-19 | 安徽省建筑科学研究设计院 | Connection structure for reinforcing net rack |
| CN109779061A (en) * | 2019-02-25 | 2019-05-21 | 辽宁工程技术大学 | A new type of energy-consuming node applied to large-span grid structure |
| CN110512738A (en) * | 2019-08-29 | 2019-11-29 | 同济大学 | A prestressed polyurethane-aluminum alloy composite member |
| CN113235731A (en) * | 2021-05-11 | 2021-08-10 | 太原理工大学 | Floor position adjustable assembled welding clean shot node reinforcing apparatus |
| CN113235731B (en) * | 2021-05-11 | 2022-07-29 | 太原理工大学 | Rib plate position adjustable assembled welding clean shot node reinforcing apparatus |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170905 Termination date: 20181124 |