CN106760054A - Precast reinforced concrete shear wall - Google Patents
Precast reinforced concrete shear wall Download PDFInfo
- Publication number
- CN106760054A CN106760054A CN201710116546.7A CN201710116546A CN106760054A CN 106760054 A CN106760054 A CN 106760054A CN 201710116546 A CN201710116546 A CN 201710116546A CN 106760054 A CN106760054 A CN 106760054A
- Authority
- CN
- China
- Prior art keywords
- shear wall
- coupling
- reinforced concrete
- precast reinforced
- bar
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
- E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
- E04C5/165—Coaxial connection by means of sleeves
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/18—Spacers of metal or substantially of metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention provides a kind of precast reinforced concrete shear wall, including upper section shear wall and lower section shear wall, Coupling is embedded with the upper section shear wall, it is embedded with the lower section shear wall and is revealed in outer section bar, the section bar adaptation is penetrated in the Coupling and in grouting in the Coupling and then the upper section shear wall is connected with each other with lower section shear wall." concentration connected mode " by the way that " the dispersion connected mode " of reinforcing bar to be improved to shaped steel of the invention, to solve the problems, such as the difficult insertion of reinforcing bar and difficult centering, and further provides for construction joint efficiency.
Description
Technical field
The invention belongs to construction engineering technical field, and in particular to a kind of precast reinforced concrete shear wall.
Background technology
Compared to cast-in-place concrete structure, prefabricated assembled concrete structure have low in resources consumption, ambient influnence it is low, work
The characteristics of productivity ratio is high, is the developing direction of the current building industrialization construction of China with significant economic and social benefit.With
As Frame-Shear Wall, precast shear wall structure is suitable for high residential building to cast-in-place shear wall structure, and precast frame-cut
Power wall is suitable for office and market room., it is necessary to solve two key technologies for precast shear wall horizontal integration portion
Problem：Vertical bar connection and horizontal joint are connected.
The horizontal integration portion interconnection technique of the main flow of the current prefabricated assembled concrete shear wall of China includes：Reinforced bar sleeve
Grouting connection, reinforcing bar metal bellows slurry anchor overlap joint, tie hoop constraint reinforcing bar slurry anchor overlap joint, Bar Anchorage are in overlaid plate type wall
Body etc..
In view of current construction technology level and China's practitioner's quality, there is reinforcing bar insertion and centering in construction always
Difficult problem.Typically, then frequently with " the short wall limb of wall limb → segmentation long, fine steel rib → bar reinforcement, double muscle → mono- in practice
The improvement way of row's muscle ".However, such way inevitably brings the cast-in-place perps of increase, reduces efficiency of construction, loss
A series of technological deficiencies such as the outer rigidity of wall plane.Also, even for common 3 meters or so and without the wall of end sleeper
Limb, vertical reinforcement still has 8 or so.End sleeper is such as included, then number of steel bars is more.Reinforcing bar insertion and centering exist suitable
Difficulty.At a puss, then its position is corrected using heating reinforcing bar.What is more, then direct sawed-off reinforcing bar, to house safety belt
Carry out huge hidden danger.
Thus, research and development reasonable stress, easily Vertical bar connection technology of constructing are prefabricated assembling type reinforced to accelerating China
The development of concrete structure, has great importance.
The content of the invention
To overcome the defect existing for prior art, a kind of precast reinforced concrete shear wall is now provided, by by reinforcing bar
" dispersion connected mode " be improved to " the concentration connected mode " of shaped steel, to solve the problems, such as the difficult insertion of reinforcing bar and difficult centering, and
Further improve construction joint efficiency.
To achieve the above object, solution of the invention is：A kind of precast reinforced concrete shear wall is provided, including it is upper
Section shear wall and lower section shear wall, are embedded with Coupling in the upper section shear wall, be embedded with the lower section shear wall aobvious
Outer section bar is exposed to, the section bar adaptation is penetrated in the Coupling and in grouting in the Coupling and then epimere shearing
Wall is connected with each other with lower section shear wall.
Preferably, seam is left between the upper section shear wall and the lower section shear wall, by the grout filling institute
State seam.
Preferably, the slurry that the grouting and the filled therewith are used, is high-strength, fast hard, microdilatancy, high flowability
Cement-based material.And then the filled therewith of be in the milk by described shaped steel sleeve connection and horizontal joint, realize that the epimere is cut
Power wall is transmitted with the stress of the lower section shear wall.
Preferably, the seam is horizontal joint, and anti-shear steel plate is had additional in the middle part of the seam crossing.
Preferably, the two ends of the Coupling offer grout hole respectively.
Preferably, be equipped with embedded bar in the upper section shear wall and the lower section shear wall, the Coupling with
The embedded bar overlap joint of the upper section shear wall, the section bar is overlapped with the embedded bar of the lower section shear wall.
Preferably, the embedded bar includes the vertical reinforcement and horizontal reinforcement arranged along shear wall profile, the set
Fitting and the section bar are overlapped with the vertical reinforcement in respective shear wall respectively.
Preferably, the Coupling and the section bar are added with the range of vertical reinforcement overlap joint by stirrup respectively
It is solidly connected.The effect of enhancing overlap joint connection is encrypted with this.
Preferably, the surface soldered of the Coupling and the section bar has shearing-resistant member to increase the shearing resistance of respective component
Property.
Preferably, there are some annular friction ribs on the Coupling surface.
Preferably, the section bar is revealed in the baffle plate that outer end is provided with circle.
Preferably, the Coupling is sleeve, and the section bar is shaped steel.
The beneficial effect of precast reinforced concrete shear wall of the present invention includes：
1) construction convenient and efficient.Vertical bar connection method proposed by the present invention only needs for two shaped steel to insert right respectively
In the sleeve answered, then it is in the milk in two sleeves, its insertion and centering difficulty are low, and grouting efficiency is high.And it is existing at present
The rule of doing having is during many reinforcing bars of shear wall upper-lower section are disposably inserted into respective sleeve respectively, to be then in the milk one by one, its
The difficulty of insertion and centering is big, and grouting efficiency is low；
2) reasonable stress.Compared to reinforced bar sleeve grouting and slurry anchor connection, shear wall receives force efficiency under Moment of the present invention
It is higher, and do not influence to receive tiltedly to cut and staight scissors ability.By the way that shaped steel is instead of reinforcing bar and concentration is arranged in shear wall two ends, work as generation
During Moment, the shaped steel of tension apart from neutral axis farther out, compared to reinforcing bar along shear wall length the way that is evenly arranged, stress is more
Rationally.And tiltedly cut with staight scissors drag because force-mechanism is constant, therefore do not reduce bearing capacity；
3) effect of sleeve makes full use of.Sleeve has two effects, and one is conventional effect, will sleeve as grouting connect
A part, when shaped steel tension, grouting material and shaped steel to its inside play strong constraint.Two are received when grouting connection is in
During pressure condition, sleeve can constrain internal grouting material, improve its compressive capacity.By contrast, existing reinforcing bar grouting at present
In connection or the slurry connection of reinforcing bar anchor, because part reinforcing bar grouting connection or the slurry connection of reinforcing bar anchor are located in the middle part of shear wall cross section, because
And second effect that above-mentioned the application has does not give full play to.
Brief description of the drawings
Fig. 1 is the overall decomposition texture schematic diagram of precast reinforced concrete shear wall of the present invention；
Fig. 2 is the cross-sectional view at upper section shear wall A-A in corresponding diagram 1；
Fig. 3 is the cross-sectional view at lower section shear wall B-B in corresponding diagram 1；
Fig. 4 is the structural representation of the middle sleeve inwall of corresponding diagram 1.
Wherein：1-lower section shear wall, 2-upper section shear wall, vertical reinforcement in 3-lower section shear wall, 4-shaped steel, 5-
Sleeve, 6-upper section shear wall vertical reinforcement, the stirrup of 7-binding type steel and vertical reinforcement in lower section shear wall, 8-about collar
Cylinder and the stirrup of vertical reinforcement in upper section shear wall, the 9-lower flat reinforcing bar of section shear wall reclaimed water, the 10-upper section shear wall flat steel of reclaimed water
Muscle, 11-baffle plate, 12-annular friction rib.
Specific embodiment
The present invention is further illustrated below in conjunction with accompanying drawing illustrated embodiment.
As shown in figure 1, present invention firstly provides a kind of precast reinforced concrete shear wall, including upper section shear wall 2 with
And lower section shear wall 1, connected by three sections and realize that the reliability of wall vertical reinforcement stress is continuous, that is, descend vertical in section shear wall
Reinforcing bar is overlapped with shaped steel, the grouting of shaped steel sleeve is connected and sleeve is overlapped with vertical reinforcement in upper section shear wall.Wherein, shaped steel 4
Two ends are embedded in lower section shear wall and are located at, sleeve 5 is embedded in section shear wall and is located at two ends.Shaped steel 4
Position with sleeve 5 is corresponding.
Specifically, the two ends pre-buried shaped steel 4 of difference of lower section shear wall 1.Shaped steel 4 exposes a section of shear wall surface
Anchorage length, the end sets baffle plate 11, to increase the resistance to plucking output capacity between shaped steel 4 and sleeve 5.The two of upper section shear wall 2
The end pre-buried sleeve 5 of difference.During assembling, upper section shear wall 2 is slowly put down, in the insertion sleeve 5 of shaped steel 4.Upper and lower shear wall
Horizontal joint is kept at a distance 20mm.Surrounded using enclosing part around seam.Then grouting material is injected into sleeve 5.Part fills
Slurry can automatically be deposited in section shear wall bottom and fill level seam, form laitance, be used to resist level after consolidation and sclerosis
Shearing.
As shown in Fig. 2 sleeve 5 is overlapped with vertical reinforcement 6 in upper section shear wall 2, constrained using stirrup 8 in the range of overlap joint.
There is horizontal reinforcement 10 in upper section shear wall 2.
As shown in figure 3, shaped steel 4 is constrained in the range of the overlap joint of vertical reinforcement 3 with lower section shear wall 1 using stirrup 7.Hypomere is cut
There is horizontal reinforcement 9 in power wall 1.
As shown in figure 4, there are some annular friction ribs 12, the annular friction being distributed by multiple tracks uniform intervals in the surface of sleeve
Rib structure helps to increase viscous between the outer surface of outer concrete and sleeve 5 and internal grouting material and the inner surface of sleeve 5
Knot is acted on, and then increases the reliability of stress.
More preferably, the cross sectional shape of shaped steel 4 can be H types or T-shaped, or other opening thin shapes.Type
Steel 4 can also be closed thin wall component, such as steel pipe.Sleeve 5 is made up through Surface Machining of industrial seamless steel pipe into many ribs.Sleeve
5 open up two apertures in the wall surface at the position of upper and lower side, are easy to grouting and pulp.The grouting and the filled therewith
The slurry of use, is high-strength, fast hard, microdilatancy, the cement-based material of high flowability.And then be in the milk by described shaped steel sleeve
Connection and the filled therewith of horizontal joint, realize that the upper section shear wall is transmitted with the stress of the lower section shear wall.Further
The all surface of ground, shaped steel 4 and steel pipe sleeve 5 welds U-shaped shearing-resistant member to increase the shear resistance of respective component.Shaped steel 4 and reinforcing bar
Overlap joint, and when sleeve 5 and bar splicing, the length of use meets lapped length of steel bar requirement.Set up in the range of the lap of splice
Stirrup, stirrup spacing is smaller (such as using 50mm), to ensure overlap joint stress reliability, and encrypts the effect of enhancing overlap joint connection.
In actual applications, with reference to shown in following table, the H sections shaped steel in Fig. 1 could alternatively be T sections shaped steel (such as in table
Extension form 1), or be substituted for steel pipe (the extension form 2 such as in table).Additionally, when horizontal joint resistance horizontal shear
During scarce capacity, an anti-shear steel plate (the extension form 3 such as in table) can be increased in the middle part of shear wall cross section.Meanwhile, when cutting
When power wall bending resistance is not enough, two shaped steel and relevant sleeve (the extension shape such as in table can be set in each end of shear wall
Formula 4).Certainly, extension form is not limited to the form 1 to 4 in table.
After completing above-mentioned implementation process, following characteristics of the invention should be able to be embodied：
1) the shear wall connected mode of existing reinforcing bar insertion sleeve is improved so that insertion and centering difficulty in construction
It is low, and grouting efficiency is high；
2) the attachment structure form between sleeve of the present invention and section bar causes that stress is more reasonable and utilization ratio is higher；
3) present invention component used is that construction is commonly used, and can be gathered materials on the spot.
The above-mentioned description to embodiment is to be understood that and apply this hair for ease of those skilled in the art
It is bright.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein
General Principle is applied in other embodiment without by performing creative labour.Therefore, the invention is not restricted to above-described embodiment,
Those skilled in the art's announcement of the invention, does not depart from improvement that scope made and modification all should be in this hair
Within bright protection domain.
Claims (10)
1. a kind of precast reinforced concrete shear wall, it is characterised in that：Including upper section shear wall and lower section shear wall, it is described on
Coupling is embedded with section shear wall, is embedded with the lower section shear wall and is revealed in outer section bar, the section bar adaptation is penetrated
In the Coupling and in grouting in the Coupling and then the upper section shear wall is connected with each other with lower section shear wall.
2. precast reinforced concrete shear wall according to claim 1, it is characterised in that：The upper section shear wall with it is described
Seam is left between lower section shear wall, by seam described in the grout filling.
3. precast reinforced concrete shear wall according to claim 2, it is characterised in that：The seam is horizontal joint,
Anti-shear steel plate is had additional in the middle part of the seam crossing.
4. precast reinforced concrete shear wall according to claim 2, it is characterised in that：The end of the Coupling opens up
There is grout hole.
5. precast reinforced concrete shear wall according to claim 1, it is characterised in that：The upper section shear wall and institute
State and embedded bar is equipped with lower section shear wall, the Coupling is overlapped with the embedded bar of the upper section shear wall, institute
Section bar is stated to be overlapped with the embedded bar of the lower section shear wall.
6. precast reinforced concrete shear wall according to claim 5, it is characterised in that：The embedded bar includes that edge is cut
The vertical reinforcement and horizontal reinforcement of power wall profile arrangement, the Coupling and the section bar respectively with respective shear wall in
The vertical reinforcement overlap joint.
7. precast reinforced concrete shear wall according to claim 6, it is characterised in that：The Coupling and the type
Material is connected with the range of vertical reinforcement overlap joint by stirrup reinforcing respectively.
8. according to any described precast reinforced concrete shear wall of claim 1 to 7, it is characterised in that：The Coupling with
And the surface soldered of the section bar has shearing-resistant member, the Coupling is sleeve, and the section bar is shaped steel.
9. according to any described precast reinforced concrete shear wall of claim 1 to 7, it is characterised in that：The Coupling
Inwall is provided with some annular friction ribs.
10. according to any described precast reinforced concrete shear wall of claim 1 to 7, it is characterised in that：The section bar appears
Baffle plate is provided with outer end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710116546.7A CN106760054B (en) | 2017-03-01 | 2017-03-01 | Prefabricated reinforced concrete shear wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710116546.7A CN106760054B (en) | 2017-03-01 | 2017-03-01 | Prefabricated reinforced concrete shear wall |
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| CN106760054A true CN106760054A (en) | 2017-05-31 |
| CN106760054B CN106760054B (en) | 2023-01-31 |
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Cited By (7)
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| CN107201792A (en) * | 2017-07-17 | 2017-09-26 | 广东省建科建筑设计院有限公司 | High-rise assembled single row of holes precast shear wall and its assembling structure and construction method |
| CN107355010A (en) * | 2017-08-21 | 2017-11-17 | 南京工业大学 | A kind of precast concrete shear wall profile steel joint attachment structure |
| CN107882052A (en) * | 2017-10-31 | 2018-04-06 | 万勇 | A kind of prefabricated assembled sinking basis of additional building elevator |
| CN108193801A (en) * | 2017-12-29 | 2018-06-22 | 常州工程职业技术学院 | A kind of prefabricated steel tube shear connection structure of service-strong and method |
| CN108343174A (en) * | 2018-02-08 | 2018-07-31 | 天津大学建筑设计研究院 | Fabricated shear wall dry and wet mixed connection method |
| CN109441016A (en) * | 2018-12-20 | 2019-03-08 | 深圳大学 | Prefabricated concrete structure column steel pipe socket shell ring point and preparation method thereof |
| CN110984430A (en) * | 2019-12-31 | 2020-04-10 | 浙江工业大学 | Assembled concrete shear wall and connecting method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107201792A (en) * | 2017-07-17 | 2017-09-26 | 广东省建科建筑设计院有限公司 | High-rise assembled single row of holes precast shear wall and its assembling structure and construction method |
| CN107355010A (en) * | 2017-08-21 | 2017-11-17 | 南京工业大学 | A kind of precast concrete shear wall profile steel joint attachment structure |
| CN107882052A (en) * | 2017-10-31 | 2018-04-06 | 万勇 | A kind of prefabricated assembled sinking basis of additional building elevator |
| CN107882052B (en) * | 2017-10-31 | 2020-07-14 | 万勇 | Prefabricated assembled foundation that sinks of plus building elevator |
| CN108193801A (en) * | 2017-12-29 | 2018-06-22 | 常州工程职业技术学院 | A kind of prefabricated steel tube shear connection structure of service-strong and method |
| CN108343174A (en) * | 2018-02-08 | 2018-07-31 | 天津大学建筑设计研究院 | Fabricated shear wall dry and wet mixed connection method |
| CN109441016A (en) * | 2018-12-20 | 2019-03-08 | 深圳大学 | Prefabricated concrete structure column steel pipe socket shell ring point and preparation method thereof |
| CN109441016B (en) * | 2018-12-20 | 2024-03-22 | 深圳大学 | Assembled concrete structure column steel tube sleeve joint and manufacturing method thereof |
| CN110984430A (en) * | 2019-12-31 | 2020-04-10 | 浙江工业大学 | Assembled concrete shear wall and connecting method thereof |
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