CN207277685U - A kind of overlap welding stirrup for improving Vierendeel girder ductility - Google Patents
A kind of overlap welding stirrup for improving Vierendeel girder ductility Download PDFInfo
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- CN207277685U CN207277685U CN201720764490.1U CN201720764490U CN207277685U CN 207277685 U CN207277685 U CN 207277685U CN 201720764490 U CN201720764490 U CN 201720764490U CN 207277685 U CN207277685 U CN 207277685U
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- CN
- China
- Prior art keywords
- stirrup
- overlap welding
- vierendeel girder
- ductility
- girder
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Abstract
The utility model discloses a kind of overlap welding stirrup for improving Vierendeel girder ductility, including the encrypted area stirrup on frame column, Vierendeel girder, and Vierendeel girder；First stirrup of the encrypted area stirrup of the Vierendeel girder uses overlap welding closed stirrup；The length of the bridging arrangement of overlap welding closed stirrup, for 4~6 times either 4~8 times or 4~0 times of bar diameter used in the overlap welding closed stirrup；The overlap welding closed stirrup is placed at end of frame girder 45mm~50mm.First stirrup of end of frame girder is replaced with into overlap welding stirrup, form of construction work is simple, but first stirrup of end of frame girder can be efficiently solved and constrain the problem of failing since crotch disengages, the effect of closed stirrup is given full play to, improves the ductility and anti-seismic performance of Vierendeel girder.
Description
Technical field
It the utility model is related to the Vierendeel girder of building structure, more particularly to a kind of overlap welding hoop for improving Vierendeel girder ductility
Muscle.
Background technology
Frame structure horizontal layout is flexible, it is possible to provide large space, be widely used in market, house, workshop etc. industry and
In civil buildings.Vierendeel girder is the primary structure member of frame structure key, can bear vertical gravity laod, also common with frame column
Bear wind load and geological process.Under load action, end of frame girder is subject to being total to for larger moment of flexure, shearing and axle power at the same time
Same-action, stressing conditions are complicated.Traditional rc-frame-beam end arrangement encrypts closed stirrup to bear to shear, and with
Stress indulges muscle and forms framework of steel reinforcement confined concrete.In order to ensure the useful effect of stirrup, current specifications requires closed stirrup to exist
Junction will set 135 ° of crotches, and crotch will also have certain length.But found in Practical Project and experiment, i.e.,
Make to meet current specifications requirement, be also easy to the disengagement of generation crotch in first stirrup of load action underframe beam end and lose envelope
Close the effect of stirrup.At this time, not only the shear resistance capacity of Vierendeel girder declines, but also since the operative constraint for losing stirrup is made
With stress is indulged muscle and is easier by lateral deflection into lantern-shaped, and concrete is easier to be crushed, under causing the bearing capacity of Vierendeel girder rapid
Drop.The constraint failure of first closed stirrup of end of frame girder, does not only result in the depression of bearing force of Vierendeel girder and is easy to destroy, and
And expected Aseismic Design target is not reached.
The content of the invention
In order to which first stirrup of solution framework beam end constrains the problem of failing since crotch disengages, the utility model carries
For a kind of overlap welding stirrup for improving Vierendeel girder ductility.First stirrup of end of frame girder is replaced with into overlap welding stirrup, is applied
Work mode is simple, but can efficiently solve first stirrup of end of frame girder and constrain asking for failure since crotch disengages
Topic, gives full play to the effect of closed stirrup, improves the ductility and anti-seismic performance of Vierendeel girder.
The utility model is achieved through the following technical solutions：
A kind of overlap welding stirrup for improving Vierendeel girder ductility, including adding on frame column 1, Vierendeel girder 3, and Vierendeel girder 3
Close area's stirrup 6；First stirrup of the encrypted area stirrup 6 of the Vierendeel girder 3 uses overlap welding closed stirrup 7；
The length of the bridging arrangement 8 of overlap welding closed stirrup 7, for bar diameter used in the overlap welding closed stirrup 7 4~
6 times either 4~8 times or 4~10 times.
The overlap welding closed stirrup 7 is placed at 3 end 45mm~50mm of Vierendeel girder.
The overlap welding closed stirrup 7 is placed at end of frame girder 52mm.
8 position of bridging arrangement of the overlap welding closed stirrup 7, in the small side of the stress of overlap welding closed stirrup 7
Portion.
The spot area of the bridging arrangement 8 uses welding by both sides or single welding.
A kind of method for the overlap welding stirrup for improving Vierendeel girder ductility, it includes the following steps：
Place Vierendeel girder 3 first stirrup when, place Vierendeel girder 3 encrypted area stirrup 6 first stirrup when, by this
The binding site end to end of first stirrup is used as encrypted area stirrup 6 using the welding structure of overlap joint using overlap welding closed stirrup 7
First stirrup；
And the overlap welding closed stirrup 7 is placed at 3 end 45mm~50mm of Vierendeel girder；
The ovelapping spot weld position of the overlap welding closed stirrup 7, the small side of the stress in the overlap welding closed stirrup 7
Middle part.
The overlap joint angle is 15 °~20 °
The utility model is had the following advantages and effect relative to the prior art：
For construction technology only to need first stirrup of end of frame girder replacing with overlap welding stirrup, construction technology is simply square
Just.After first stirrup of end of frame girder becomes overlap welding stirrup, under load action, end of frame girder stress maximum
First overlap welding stirrup crotch will not be disengaged as conventional stirrup, give full play to closed stirrup to indulging muscle and concrete
Lateral confinement acts on, and improves the ductility and anti-seismic performance of Vierendeel girder.
Brief description of the drawings
Fig. 1 is the overlap welding stirrup schematic diagram that the utility model improves Vierendeel girder ductility.
Fig. 2 is A-A cross-sectional views in Fig. 1.
Fig. 3 is the structure diagram using overlap welding closed stirrup 7.
In figure：Frame column 1；Vierendeel girder 2；Floor 3；Vierendeel girder indulges muscle 4；Vierendeel girder non-encrypted area stirrup 5；Encrypted area stirrup
6；Overlap welding closed stirrup 7；Bridging arrangement 8.
Embodiment
The utility model is more specifically described in detail with reference to specific embodiment.
Embodiment
As shown in Figures 1 to 3.The utility model discloses a kind of overlap welding stirrup for improving Vierendeel girder ductility, including frame
Encrypted area stirrup 6 on column 1, Vierendeel girder 3, and Vierendeel girder 3；First stirrup of the encrypted area stirrup 6 of the Vierendeel girder 3 is adopted
With overlap welding closed stirrup 7；
The length of the bridging arrangement 8 of overlap welding closed stirrup 7, for bar diameter used in the overlap welding closed stirrup 7 4~
6 times either 4~8 times or 4~10 times.
The overlap welding closed stirrup 7 is placed at 3 end 45mm~50mm of Vierendeel girder.
The overlap welding closed stirrup 7 is placed at end of frame girder 52mm.
8 position of bridging arrangement of the overlap welding closed stirrup 7, in the small side of the stress of overlap welding closed stirrup 7
Portion.
The spot area of the bridging arrangement 8 uses welding by both sides or single welding.
Specifically, overlap joint welding manner preferentially uses welding by both sides, and the lap of splice of reinforcing bar trade mark HPB300 is is used
4 times of bar diameter, the lap of splice of remaining reinforcing bar trade mark is 5 times.
When two-sided welding cannot be carried out, single welding can be used, the lap of splice of reinforcing bar trade mark HPB300 is is used steel
8 times of muscle diameter, the lap of splice of remaining reinforcing bar trade mark is 10 times.
A kind of method for the overlap welding stirrup for improving Vierendeel girder ductility, it includes the following steps：
Place Vierendeel girder 3 first stirrup when, place Vierendeel girder 3 encrypted area stirrup 6 first stirrup when, by this
The binding site end to end of first stirrup is used as encrypted area stirrup 6 using the welding structure of overlap joint using overlap welding closed stirrup 7
First stirrup；The overlap joint angle is 15 °~20 °
And the overlap welding closed stirrup 7 is placed at 3 end 45mm~50mm of Vierendeel girder；Then proceed to according to setting
Count drawing requirement assembling reinforcement.
The ovelapping spot weld position of the overlap welding closed stirrup 7, the small side of the stress in the overlap welding closed stirrup 7
Middle part.
As described above, it can preferably realize the utility model.
The embodiment of the utility model is simultaneously not restricted to the described embodiments, other are any without departing from the utility model
Spirit Essence with made under principle change, modification, replacement, combine, simplification, should be equivalent substitute mode, be included in
Within the scope of protection of the utility model.
Claims (5)
1. a kind of overlap welding stirrup for improving Vierendeel girder ductility, including on frame column (1), Vierendeel girder (3), and Vierendeel girder (3)
Encrypted area stirrup (6)；It is characterized in that：First stirrup of the encrypted area stirrup (6) of the Vierendeel girder (3) uses overlap welding
Closed stirrup (7)；
The length of the bridging arrangement (8) of overlap welding closed stirrup (7), for 4 of bar diameter used in the overlap welding closed stirrup (7)
~6 times either 4~8 times or 4~10 times.
2. the overlap welding stirrup of Vierendeel girder ductility is improved according to claim 1, it is characterised in that：The overlap welding closed stirrup
(7) it is placed at Vierendeel girder (3) end 45mm~50mm.
3. the overlap welding stirrup of Vierendeel girder ductility is improved according to claim 1, it is characterised in that：The overlap welding closed stirrup
(7) it is placed at end of frame girder 52mm.
4. according to any one of claims 1 to 3 overlap welding stirrup for improving Vierendeel girder ductility, it is characterised in that：The overlap joint
Bridging arrangement (8) position of closed stirrup (7) is welded, at the middle part of the small side of the stress of overlap welding closed stirrup (7).
5. the overlap welding stirrup of Vierendeel girder ductility is improved according to claim 4, it is characterised in that：The bridging arrangement (8)
Spot area uses welding by both sides or single welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720764490.1U CN207277685U (en) | 2017-06-28 | 2017-06-28 | A kind of overlap welding stirrup for improving Vierendeel girder ductility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720764490.1U CN207277685U (en) | 2017-06-28 | 2017-06-28 | A kind of overlap welding stirrup for improving Vierendeel girder ductility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207277685U true CN207277685U (en) | 2018-04-27 |
Family
ID=61992779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720764490.1U Expired - Fee Related CN207277685U (en) | 2017-06-28 | 2017-06-28 | A kind of overlap welding stirrup for improving Vierendeel girder ductility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207277685U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178181A (en) * | 2017-06-28 | 2017-09-19 | 华南理工大学 | A kind of overlap welding stirrup and method for improving Vierendeel girder ductility |
-
2017
- 2017-06-28 CN CN201720764490.1U patent/CN207277685U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178181A (en) * | 2017-06-28 | 2017-09-19 | 华南理工大学 | A kind of overlap welding stirrup and method for improving Vierendeel girder ductility |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180427 Termination date: 20190628 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |