CN207176941U - A kind of casing bit reinforced for axial compression steel pipe stability - Google Patents
A kind of casing bit reinforced for axial compression steel pipe stability Download PDFInfo
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- CN207176941U CN207176941U CN201721134954.7U CN201721134954U CN207176941U CN 207176941 U CN207176941 U CN 207176941U CN 201721134954 U CN201721134954 U CN 201721134954U CN 207176941 U CN207176941 U CN 207176941U
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- pipe
- sleeve
- sleeve pipe
- otic placode
- casing bit
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 33
- 239000010959 steel Substances 0.000 title claims abstract description 33
- 230000006835 compression Effects 0.000 title claims abstract description 22
- 238000007906 compression Methods 0.000 title claims abstract description 22
- 239000003351 stiffener Substances 0.000 claims abstract description 32
- 238000012946 outsourcing Methods 0.000 claims abstract description 4
- 229910010272 inorganic material Inorganic materials 0.000 claims description 7
- 239000011147 inorganic material Substances 0.000 claims description 7
- 238000010276 construction Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 238000005728 strengthening Methods 0.000 abstract description 4
- 238000009417 prefabrication Methods 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 description 10
- 230000035882 stress Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 238000007596 consolidation process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The utility model provides a kind of casing bit reinforced for axial compression steel pipe stability, and casing bit outsourcing is used to reinforce pipe fitting on a pipe fitting, including：Sleeve body, multiple longitudinal stiffeners and multiple transverse stiffeners, sleeve body include relative button with the first sleeve being coated on outside pipe fitting and the second sleeve pipe, and the both ends of sleeve body are respectively stretched out at the both ends of pipe fitting；Multiple longitudinal stiffeners are fixedly installed on the outer wall of sleeve body along the length direction of sleeve body, and the axis of sleeve body is located at longitudinally in each in the plane where ribbed stiffener；Multiple transverse stiffeners are annular, and are sequentially sleeved at along the axial direction of sleeve body on the outer wall of sleeve body, and the plane where each transverse stiffener is vertical with the axis of sleeve body.Prefabrication, site-assembled mode can be used, its is simple in construction, materials are extensive, cheap, can be widely used for large span steel structure strengthening and rebuilding engineering.
Description
Technical field
It the utility model is related to a kind of large span steel structure reinforcing combined member applied in building structure, particularly one
Kind is used for the casing bit reinforced to the axial compression steel pipe stability in large span steel structure.
Background technology
With social activities and production activity become increasingly abundant, it is necessary to large span space come meet people activity various need
Ask.Large span steel structure is widely used with its reasonable stress, beautiful design, short construction period in Practical Project.Both
There is large span steel structure within the whole service life phase, on the one hand in use, because the change using function can cause to tie
The increase of structure bearing load；On the other hand, structure except for a long time by the effect of the dead loads such as own wt in addition to, it is also possible to hold
By environmental attack, blast, shock and vibration load, geological process, wind load etc., structural elements is set degradation resistance, material occur
Aging equivalent damage.Round steel pipe rod member in large span steel structure is more sensitive to buckle in compression with more, due to compression member
The characteristics of brittle break is presented in flexing, main rod member buckle in compression, overall structure may be caused local buckling and overall mistake occur
Surely, cause structure that brittle, successional collapse occurs, the ability for finally making overall structure lose resistance external load.Go out
The existing large span steel structure of these existing problems need to carry out necessary reinforcing, to increase the security of structure.
Axial compression round steel pipe bar stability reinforced construction method mainly has load reinforcing, unloading consolidation and replaces component
Reinforce.Unloading consolidation is not only uneconomical but also influences normal use, and replacing member is reinforced and generally requires to restructure configuration simultaneously
Cause Internal Force Redistribution, security risk is larger.Strengthening reconstruction often requires that the influence reduced as far as possible to using function, therefore loads
Under the conditions of reinforce turn into large span steel structure reinforcing engineering in important need.Under loading condition weld or bolt strengthening construction be compared with
To be dangerous, when carrying out reinforcement operation to structure using welding technique, welding position by high temperature action, microstructure and
Mechanical property changes, and is easy to irreversible additional deformation and the additional stress for causing large-span structure.When being connected by screw bolts
When, the sectional dimension of mother metal can be made to diminish, and new area of stress concentration is generated near perforate, consolidation effect is generated
Detrimental effect.Stability is carried out under large span steel structure axial compression round steel pipe rod member loading condition, ductility is reinforced and reduction of trying one's best
Job site weld or fasten connect operation turn into it is anxious to be resolved the problem of.
Utility model content
In view of the above-mentioned problems in the prior art, the utility model provides a kind of to round steel pipe in large span steel structure
The casing bit that the stability of rod member is reinforced.
To solve the above problems, the utility model provides a kind of sleeve pipe dress reinforced for axial compression steel pipe stability
Put, the outsourcing of described sleeve pipe device is used to reinforce the pipe fitting on a pipe fitting, and described sleeve pipe device includes：
Sleeve body, it includes relative button with the first sleeve being coated on outside the pipe fitting and the second sleeve pipe, the pipe fitting
Both ends respectively stretch out the both ends of described sleeve pipe body；
Multiple longitudinal stiffeners, its length direction along described sleeve pipe body are fixedly installed on the outer wall of described sleeve pipe body
On, and the axis of described sleeve pipe body is located at each in the plane where the longitudinal stiffener；
Multiple transverse stiffeners, the transverse stiffener are annular, and are arranged successively along the axial direction of described sleeve pipe body
On the outer wall of described sleeve pipe body, axis of the plane with described sleeve pipe body where each transverse stiffener hangs down
Directly.
Preferably, be provided with an inorganic material bed course on the inwall of described sleeve pipe body, the inorganic material bed course with
The pipe fitting fitting.
Preferably, the first sleeve be installed with the outward flange for the end face being connected with second sleeve pipe it is more
Individual one-to-one connection otic placode, the corresponding connection otic placode are connected by connector.
Preferably, the connection otic placode positioned at the first sleeve and the both ends of second sleeve pipe is the first otic placode, position
The connection otic placode between first otic placode at both ends is the second otic placode, two institutes positioned at described sleeve pipe body one end
State transverse stiffener to be fixedly connected by first otic placode, positioned at two lateral stiffenings of the described sleeve pipe body other end
Rib is fixedly connected by first otic placode；Described second is fixedly installed in two plate faces of remaining transverse stiffener
Otic placode, and uniformly arrangement.
Preferably, each first otic placode is provided with least two connecting holes, and at least two connecting holes are along institute
The length direction for stating pipe fitting is arranged successively.
Preferably, the axle that the plane where the contact surface of the first sleeve and second sleeve pipe passes through the pipe fitting
Line.
Preferably, the pipe fitting is pipe, the cross section of the first sleeve and second sleeve pipe is semicircle.
Compared with prior art, the beneficial effects of the utility model are：It is provided by the utility model to be used for axial compression
The casing bit that steel pipe stability is reinforced does not change the Stiffness Distribution pattern and force modes of pipe fitting to be reinforced, and also not changing it should
Power is horizontal, will not cause serious stress concentration, residual stress, and internal force redistribution, and it is smaller to reinforce risk.This reinforcing
Technology can improve the stability bearing capacity and energy dissipation capacity of structure axis compression pipe fitting, improve the brittle break mechanism of pipe fitting, make
It has stronger ductile ability, improves the overall performance of large span steel structure.The casing bit is prefabricated in the factory production, factory's life
The performance indications of production process in which materials can be controlled at any time, and strict industrial production can ensure quality.Applied after transporting scene
Work is convenient, removes Site Welding connection from, realizes wet-less operation, reinforcing does not need extra device to be fixed initial stage, and reinforcing changes
Making can be carried out under conditions of function is not stopped using, and maintenance cost is low.In addition, the apparatus structure it is simple, it is easy for construction, can
It is preferable by property, stability deficiency axial compression pipe fitting can rapidly and effectively be reinforced, be had a good application prospect.
Brief description of the drawings
Fig. 1 is the overall structure signal of the casing bit of the present utility model reinforced for axial compression steel pipe stability
Figure；
Fig. 2 be Fig. 1 1-1 to sectional view；
Fig. 3 be Fig. 1 2-2 to sectional view；
Fig. 4 be Fig. 1 3-3 to sectional view；
Fig. 5 be Fig. 1 4-4 to sectional view.
Reference：
1st, pipe fitting；2nd, sleeve body；3rd, longitudinal stiffener；4th, transverse stiffener；5th, inorganic material bed course；6th, engaging lug
Plate；7th, connector；21st, first sleeve；22nd, the second sleeve pipe；61st, the first otic placode；62nd, the second otic placode；63rd, connecting hole.
Embodiment
It is below in conjunction with the accompanying drawings and specific real to make those skilled in the art be better understood from the technical solution of the utility model
Mode is applied to elaborate to the utility model.
The utility model provides a kind of casing bit reinforced for axial compression steel pipe stability, such as Fig. 1 to Fig. 3 institutes
Show, casing bit outsourcing is used to reinforce pipe fitting 1 on a pipe fitting 1, and casing bit includes：Sleeve body 2, multiple longitudinal directions
Ribbed stiffener 3 and multiple transverse stiffeners 4, sleeve body 2 include relative button to be coated on the first sleeve 21 and second outside pipe fitting 1
The both ends of sleeve body 2 are respectively stretched out at sleeve pipe 22, the both ends of pipe fitting 1, to ensure that casing bit is not subject to axial pressure；
Length direction of multiple longitudinal stiffeners 3 along sleeve body 2 is fixedly installed on the outer wall of sleeve body 2, and sleeve body 2
Axis is in the plane where ribbed stiffener 3 longitudinally in each, to the intensity of reinforcing sleeve device, and then improves holding for pipe fitting 1
Loading capability；Multiple transverse stiffeners 4 are annular, and the outer wall of sleeve body 2 is sequentially sleeved at along the axial direction of sleeve body 2
On, the plane where each transverse stiffener 4 is vertical with the axis of sleeve body 2, and to the strong of reinforcing sleeve device
Degree, and then improve the bearing capacity of pipe fitting 1.During actual use, casing bit of the present utility model is applied being transported to
After work scene, the sleeve pipe 22 of first sleeve 21 and second is arranged on to the outside of pipe fitting 1 to be reinforced, and by the He of first sleeve 21
Second sleeve pipe 22 is fixedly connected, and now, casing bit is just assembled into the component of common stress with pipe fitting 1 to be reinforced.In pipe fitting 1
When the axial compressive force born reaches critical load, unstable phenomenon will occur, just mutually squeezed with casing bit after producing lateral deformation
Pressure, casing bit produce bending stress, and sidewise restraint, when the rigidity of casing bit is sufficiently large, casing bit are provided for pipe fitting 1
When middle maximum stress in bend is no more than the yield stress of steel, the mistake under high-order buckling mode occurs for the pipe fitting 1 of energy restrained reinforcement
It is steady to destroy, just solve the problems, such as stability, the ductility deficiency of the pipe fitting 1 of reinforcing, by the failure mechanism of pipe fitting 1 by brittle break
It is converted into ductile fracture.Casing bit of the present utility model can use prefabrication, site-assembled mode, and the letter of its structure
List, draw materials extensive (steel), be cheap, being processed suitable for streamline, can be widely used for large span steel structure strengthening reconstruction work
Journey.
In an optional embodiment, referring to shown in Fig. 2 and Fig. 3, being provided with an inorganic material on the inwall of sleeve body 2
Sarking 5, inorganic material bed course 5 are bonded with pipe fitting 1, straight to ensure to produce between sleeve body 2 and pipe fitting 1 to be reinforced
Contact, and pipe fitting 1 can also facing sleeve body 2 slide.
Shown in Figure 1 in an optional embodiment, first sleeve 21 is with the second sleeve pipe 22 in the end face being connected
Outward flange on be installed with multiple one-to-one connection otic placodes 6, corresponding connection otic placodes 6 are connected by connector 7, even
Fitting 7 can be bolt.So that the connection of the sleeve pipe 22 of first sleeve 21 and second becomes more to facilitate, and first set can be ensured
The bonding strength of the sleeve pipe 22 of pipe 21 and second.
Further, shown in Figure 1, the connection otic placode 6 positioned at the both ends of the sleeve pipe 22 of first sleeve 21 and second is the
One otic placode 61, the connection otic placode 6 between first otic placode 61 at both ends is the second otic placode 62, positioned at the one end of sleeve body 2
Two transverse stiffeners 4 are fixedly connected by the first otic placode 61, and two transverse stiffeners 4 positioned at the other end of sleeve body 2 are logical
Cross the first otic placode 61 to be fixedly connected, the both ends of casing bit are further reinforced, ensure that the connection at casing bit both ends is strong
Degree；The second otic placode 62, and uniformly arrangement are fixedly installed in two plate faces of remaining transverse stiffener 4, strengthens whole sleeve pipe
The bearing capacity of device.
In addition, referring to shown in Fig. 1 and Fig. 4, each first otic placode 61 is provided with least two connecting holes 63, and at least two
Length direction of the connecting hole 63 along pipe fitting 1 is arranged successively, when connecting the first corresponding otic placode 61 by connector 7, makes it
It is more uniformly stressed, improves its stress intensity, makes the connection of the sleeve pipe 22 of first sleeve 21 and second more firm.
In a preferred embodiment, the plane where the contact surface of the sleeve pipe 22 of first sleeve 21 and second passes through pipe fitting
1 axis, make being more uniformly stressed for the sleeve pipe 22 of first sleeve 21 and second, to increase the bearing capacity of whole casing bit.
When pipe fitting 1 is pipe, the cross section of the sleeve pipe 22 of first sleeve 21 and second is semicircle, and makes first
The sleeve pipe 22 of sleeve pipe 21 and second is more uniformly stressed, to increase the bearing capacity of whole casing bit.
Above example is only exemplary embodiment of the present utility model, is not used in limitation the utility model, and this practicality is new
The protection domain of type is defined by the claims.Those skilled in the art can be in essence of the present utility model and protection domain
It is interior, various modifications or equivalent substitution are made to the utility model, this modification or equivalent substitution also should be regarded as new in this practicality
In the protection domain of type.
Claims (7)
1. a kind of casing bit reinforced for axial compression steel pipe stability, it is characterised in that described sleeve pipe device outsourcing exists
It is used to reinforce the pipe fitting on one pipe fitting, described sleeve pipe device includes：
Sleeve body, it includes relative button with the first sleeve being coated on outside the pipe fitting and the second sleeve pipe, and the two of the pipe fitting
The both ends of described sleeve pipe body are respectively stretched out at end；
Multiple longitudinal stiffeners, its length direction along described sleeve pipe body are fixedly installed on the outer wall of described sleeve pipe body,
And the axis of described sleeve pipe body is located at each in the plane where the longitudinal stiffener；
Multiple transverse stiffeners, the transverse stiffener are annular, and are sequentially sleeved at institute along the axial direction of described sleeve pipe body
State on the outer wall of sleeve body, the plane where each transverse stiffener is vertical with the axis of described sleeve pipe body.
A kind of 2. casing bit reinforced for axial compression steel pipe stability according to claim 1, it is characterised in that
An inorganic material bed course is provided with the inwall of described sleeve pipe body, the inorganic material bed course is bonded with the pipe fitting.
A kind of 3. casing bit reinforced for axial compression steel pipe stability according to claim 1, it is characterised in that
The first sleeve is installed with multiple one-to-one connections with second sleeve pipe on the outward flange for the end face being connected
Otic placode, the corresponding connection otic placode are connected by connector.
A kind of 4. casing bit reinforced for axial compression steel pipe stability according to claim 3, it is characterised in that
Connection otic placode positioned at the first sleeve and the both ends of second sleeve pipe is the first otic placode, first ear positioned at both ends
The connection otic placode between plate is the second otic placode, and two transverse stiffeners positioned at described sleeve pipe body one end pass through institute
State the first otic placode to be fixedly connected, two transverse stiffeners positioned at the described sleeve pipe body other end pass through first otic placode
It is fixedly connected；Second otic placode, and uniformly arrangement are fixedly installed in two plate faces of remaining transverse stiffener.
A kind of 5. casing bit reinforced for axial compression steel pipe stability according to claim 4, it is characterised in that
Each first otic placode is provided with least two connecting holes, and length direction of at least two connecting holes along the pipe fitting according to
Secondary arrangement.
A kind of 6. casing bit reinforced for axial compression steel pipe stability according to claim 1, it is characterised in that
The axis that plane where the contact surface of the first sleeve and second sleeve pipe passes through the pipe fitting.
A kind of 7. casing bit reinforced for axial compression steel pipe stability according to claim 1, it is characterised in that
The pipe fitting is pipe, and the cross section of the first sleeve and second sleeve pipe is semicircle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721134954.7U CN207176941U (en) | 2017-09-05 | 2017-09-05 | A kind of casing bit reinforced for axial compression steel pipe stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721134954.7U CN207176941U (en) | 2017-09-05 | 2017-09-05 | A kind of casing bit reinforced for axial compression steel pipe stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207176941U true CN207176941U (en) | 2018-04-03 |
Family
ID=61742889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721134954.7U Active CN207176941U (en) | 2017-09-05 | 2017-09-05 | A kind of casing bit reinforced for axial compression steel pipe stability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207176941U (en) |
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2017
- 2017-09-05 CN CN201721134954.7U patent/CN207176941U/en active Active
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