CN107190915A - A kind of butt welding stirrup and method for improving Vierendeel girder ductility - Google Patents
A kind of butt welding stirrup and method for improving Vierendeel girder ductility Download PDFInfo
- Publication number
- CN107190915A CN107190915A CN201710507802.5A CN201710507802A CN107190915A CN 107190915 A CN107190915 A CN 107190915A CN 201710507802 A CN201710507802 A CN 201710507802A CN 107190915 A CN107190915 A CN 107190915A
- Authority
- CN
- China
- Prior art keywords
- stirrup
- butt welding
- vierendeel girder
- ductility
- girder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/04—Flash butt welding
Abstract
The invention discloses a kind of butt welding stirrup and method for improving Vierendeel girder ductility.Including frame column, Vierendeel girder, to be distributed in the encrypted area stirrup on Vierendeel girder；In encrypted area, stirrup is located at the junction end to end of first stirrup of this side of frame column, and the connection of flash butt welding structure is respectively adopted；Flash butt welding structure makes first stirrup formation butt welding closed stirrup structure on Vierendeel girder；The position of butt welding closed stirrup structure, respectively apart from end of frame girder 45mm~50mm, is used as first stirrup of encrypted area stirrup.First stirrup of end of frame girder is replaced with into butt welding stirrup, form of construction work is simple, but first stirrup of end of frame girder can be efficiently solved because crotch is disengaged and constrains the problem of failing, the effect of closed stirrup is given full play to, the ductility and anti-seismic performance of Vierendeel girder is improved.
Description
Technical field
The present invention relates to the Vierendeel girder of building structure, more particularly to a kind of butt welding stirrup for improving Vierendeel girder ductility and side
Method.
Background technology
Frame structure horizontal layout is flexible, it is possible to provide large space, be widely used in market, house, factory building etc. industry and
In civil buildings.Vierendeel girder is the crucial primary structure member of frame structure, can bear vertical gravity laod, also common with frame column
Bear wind load and geological process.Under load action, end of frame girder is total to by larger moment of flexure, shearing and axle power simultaneously
Same-action, stressing conditions are complicated.Traditional rc-frame-beam end arrangement encrypts closed stirrup to bear to shear, and with
Stress indulges muscle formation framework of steel reinforcement confined concrete.In order to ensure the useful effect of stirrup, current specifications requires that closed stirrup exists
Junction will set crotch, and crotch will also have certain length.But found in Practical Project and experiment, even if full
Sufficient current specifications requirement, is also easy to the disengagement of generation crotch in first stirrup of load action underframe beam end and loses closing ring
The effect of muscle.Now, not only the shear resistance capacity of Vierendeel girder declines, and because the operative constraint for losing stirrup is acted on, by
Power is indulged muscle and is easier by lateral deflection into lantern-shaped, and concrete is easier to be crushed, and causes the bearing capacity of Vierendeel girder to decline rapidly.Framework
The constraint failure of first closed stirrup of beam end, the depression of bearing force of Vierendeel girder is not only resulted in and is easy to destruction, and up to not
To expected Aseismic Design target.
The content of the invention
In order to which first stirrup of solution framework beam end is because crotch is disengaged and constrains the problem of failing, the present invention provides one
Plant the butt welding stirrup and method for improving Vierendeel girder ductility.First stirrup of end of frame girder is replaced with into butt welding stirrup, constructed
Mode is simple, but can efficiently solve first stirrup of end of frame girder because crotch is disengaged and constrains asking for failure
Topic, gives full play to the effect of closed stirrup, improves the ductility and anti-seismic performance of Vierendeel girder.
The present invention is achieved through the following technical solutions：
A kind of butt welding stirrup for improving Vierendeel girder ductility, including frame column 1, Vierendeel girder 2, to be distributed on Vierendeel girder 2
Encrypted area stirrup 6；In encrypted area, stirrup 6 is located at the junction end to end of first stirrup 7 of this side of frame column 1, is respectively adopted
Flash butt welding structure 8 is connected；Flash butt welding structure 8 makes first stirrup 7 formation butt welding closed stirrup structure on Vierendeel girder 2.
The position of the butt welding closed stirrup structure, respectively apart from the end 45mm of Vierendeel girder 2~50mm, binds round as encrypted area
First stirrup 7 of muscle 6.
The flash butt welding structure 8 is located at the middle part of butt welding closed stirrup structure.
A kind of method for improving Vierendeel girder ductility, it comprises the following steps：
By the junction end to end of first stirrup 7, the mode that flash butt welding is respectively adopted is welded, and forms it into flash of light
Butt welding structure 8；
The position of the junction end to end, i.e. the bond pad locations of flash butt welding are selected in the middle part of first stirrup 7, and are located at
The small side of stress；
Then first stirrup 7 is placed at the end 50mm of Vierendeel girder 2, is used as first of encrypted area stirrup 6
Stirrup 7.
The present invention has the following advantages and effect relative to prior art：
Construction technology is only needs to replace with first stirrup of end of frame girder into the stirrup of flash butt welding structure, work of constructing
Skill is simple and convenient.First stirrup of end of frame girder becomes after butt welding stirrup, under load action, end of frame girder stress
First maximum butt welding stirrup crotch will not be disengaged as conventional stirrup, give full play to closed stirrup to vertical muscle and coagulation
The lateral confinement effect of soil, improves the ductility and anti-seismic performance of Vierendeel girder.
Brief description of the drawings
Fig. 1 improves the butt welding stirrup schematic diagram of Vierendeel girder ductility for the present invention.
Fig. 2 is the A-A diagrammatic cross-sections along Fig. 1.
Fig. 3 is first stirrup 7 and its schematic diagram of flash butt welding structure 8.
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；First stirrup 7；Flash butt welding structure 8.
Embodiment
The present invention is more specifically described in detail with reference to specific embodiment.
Embodiment
As shown in Figures 1 to 3.The invention discloses a kind of butt welding stirrup for improving Vierendeel girder ductility, including frame column 1, frame
2 are set a roof beam in place, to be distributed in the encrypted area stirrup 6 on Vierendeel girder 2；In encrypted area, stirrup 6 is located at first hoop of this side of frame column 1
The junction end to end of muscle 7, is respectively adopted flash butt welding structure 8 and connects；Flash butt welding structure 8 makes first on Vierendeel girder 2 to bind round
The formation butt welding closed stirrup structure of muscle 7.
The position of the butt welding closed stirrup structure, respectively apart from the end 45mm of Vierendeel girder 2~50mm, binds round as encrypted area
First stirrup 7 of muscle 6.
The flash butt welding structure 8 is located at the middle part of butt welding closed stirrup structure.
Specifically, can by the position of butt welding closed stirrup structure, respectively apart from the end 48mm of Vierendeel girder 2,49mm,
51mm, 52mm, 53mm as encrypted area stirrup 6 first stirrup 7.Certainly depending on specific distance can be according to actual conditions.
The method that the present invention improves Vierendeel girder ductility, can be achieved by the steps of：
By the junction end to end of first stirrup 7, the mode that flash butt welding is respectively adopted is welded, and forms it into flash of light
Butt welding structure 8；
The position of the junction end to end, i.e. the bond pad locations of flash butt welding are selected in the middle part of first stirrup 7, and are located at
The small side of stress；
Then first stirrup 7 is placed at the end 50mm of Vierendeel girder 2, is used as first of encrypted area stirrup 6
Stirrup 7.Then proceed to according to design drawing requirement assembling reinforcement.
As described above, the present invention can be better realized.
Embodiments of the present invention are simultaneously not restricted to the described embodiments, other any Spirit Essences without departing from the present invention
With the change made under principle, modification, replacement, combine, simplify, should be equivalent substitute mode, be included in the present invention
Within protection domain.
Claims (5)
1. a kind of butt welding stirrup for improving Vierendeel girder ductility, including frame column (1), Vierendeel girder (2), to be distributed in Vierendeel girder (2)
On encrypted area stirrup (6)；It is characterized in that：In encrypted area, stirrup (6) is located at first stirrup of frame column (1) this side
(7) junction end to end, is respectively adopted flash butt welding structure (8) connection；Flash butt welding structure (8) makes on Vierendeel girder (2)
One stirrup (7) forms butt welding closed stirrup structure.
2. the butt welding stirrup of Vierendeel girder ductility is improved according to claim 1, it is characterised in that：The butt welding closed stirrup knot
The position of structure, respectively apart from Vierendeel girder (2) end 45mm~50mm, is used as first stirrup (7) of encrypted area stirrup (6).
3. the butt welding stirrup of Vierendeel girder ductility is improved according to claim 3, it is characterised in that：The flash butt welding structure
(8) it is located at the middle part of butt welding closed stirrup structure.
4. the butt welding stirrup of Vierendeel girder ductility is improved according to claim 1, it is characterised in that：The butt welding closed stirrup knot
The position of structure, respectively apart from Vierendeel girder (2) end 51mm, is used as first stirrup (7) of encrypted area stirrup (6).
5. a kind of method for improving Vierendeel girder ductility, it is characterised in that using pair that Vierendeel girder ductility is improved described in claim 4
Weld stirrup and realize that it comprises the following steps：
By the junction end to end of first stirrup (7), the mode that flash butt welding is respectively adopted is welded, and forms it into flash of light pair
Welding structure (8)；
The position of the junction end to end, the i.e. bond pad locations of flash butt welding are selected in the middle part of first stirrup (7), and positioned at by
The small side of power；
Then first stirrup (7) is placed at Vierendeel girder (2) end 50mm, is used as the first of encrypted area stirrup (6)
Individual stirrup (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710507802.5A CN107190915A (en) | 2017-06-28 | 2017-06-28 | A kind of butt welding stirrup and method for improving Vierendeel girder ductility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710507802.5A CN107190915A (en) | 2017-06-28 | 2017-06-28 | A kind of butt welding stirrup and method for improving Vierendeel girder ductility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107190915A true CN107190915A (en) | 2017-09-22 |
Family
ID=59880834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710507802.5A Pending CN107190915A (en) | 2017-06-28 | 2017-06-28 | A kind of butt welding stirrup and method for improving Vierendeel girder ductility |
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| Country | Link |
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| CN (1) | CN107190915A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201794220U (en) * | 2010-09-06 | 2011-04-13 | 郭幸福 | Closed-loop type stirrup |
| CN202073238U (en) * | 2011-04-20 | 2011-12-14 | 中国三冶集团有限公司第一建筑工程公司 | Hooping cage at crossing part of frame beam column |
| CN103216035A (en) * | 2013-04-15 | 2013-07-24 | 北京交通大学 | Ductility structure of reinforced concrete frame beam and construction method thereof |
| CN104452962A (en) * | 2014-12-04 | 2015-03-25 | 陕西省电力设计院 | Built-in inverted-corbel type concrete structure frame beam-column joint |
| CN104594558A (en) * | 2015-01-28 | 2015-05-06 | 清华大学 | Reinforced concrete frame beam structure |
-
2017
- 2017-06-28 CN CN201710507802.5A patent/CN107190915A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201794220U (en) * | 2010-09-06 | 2011-04-13 | 郭幸福 | Closed-loop type stirrup |
| CN202073238U (en) * | 2011-04-20 | 2011-12-14 | 中国三冶集团有限公司第一建筑工程公司 | Hooping cage at crossing part of frame beam column |
| CN103216035A (en) * | 2013-04-15 | 2013-07-24 | 北京交通大学 | Ductility structure of reinforced concrete frame beam and construction method thereof |
| CN104452962A (en) * | 2014-12-04 | 2015-03-25 | 陕西省电力设计院 | Built-in inverted-corbel type concrete structure frame beam-column joint |
| CN104594558A (en) * | 2015-01-28 | 2015-05-06 | 清华大学 | Reinforced concrete frame beam structure |
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Application publication date: 20170922 |