CN106677384A - Cross-shaped prefabricated shear connector, forming method thereof and loam wall - Google Patents
Cross-shaped prefabricated shear connector, forming method thereof and loam wall Download PDFInfo
- Publication number
- CN106677384A CN106677384A CN201611207167.0A CN201611207167A CN106677384A CN 106677384 A CN106677384 A CN 106677384A CN 201611207167 A CN201611207167 A CN 201611207167A CN 106677384 A CN106677384 A CN 106677384A
- Authority
- CN
- China
- Prior art keywords
- cross
- prefabricated shear
- shear connector
- loam wall
- prefabricated
- 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
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- 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
- E04B2/84—Walls made by casting, pouring, or tamping in situ
Abstract
The invention provides a cross-shaped prefabricated shear connector, a forming method thereof and a loam wall. The cross-shaped prefabricated shear connector is of a prefabricated reinforced concrete structure and is composed of an externally poured concrete part and an internally arranged steel bar framework. The contour of the externally poured concrete part is in a cross shape, and every two adjacent side faces forming the contour are in transitional connection through an arc-shaped surface. The internally arranged steel bar framework is of a cross-shaped steel bar framework structure. The forming method comprises the steps that S1, the cross-shaped steel bar framework is bound; S2, formwork supporting is conducted with wooden formworks, and the cross-shaped steel bar framework is placed in a formwork cavity and positioned; S3, the formwork is fixed and checked; S4, concrete is poured; and S5, water is sprayed for maintenance, and the formwork is removed 28 days later. As for the loam wall, the multiple cross-shaped prefabricated shear connectors are embedded in all layered components of the loam wall at intervals. The cross-shaped prefabricated shear connectors are embedded in the loam wall, so that the shearing property of joints of the loam wall can be improved, the lateral stiffness of the loam wall is improved, and the integrity is good.
Description
Technical field
The invention belongs to construction wall construction applications, prefabricated shear connector more particularly to suitable for loam wall, this resists
Cut the molding construction method and the rammed earth wall construction using the shear connector of connector.
Background technology
Loam wall is the important component for constituting rammed earth class building, the rammed earth material that it is used be it is a kind of have energy-saving and environmental protection,
The green traditional material of the advantages of reusable edible.With the enhancing of people's environmental consciousness, rammed earth wall construction is increasingly subject to people
Concern.At present, loam wall class building is mainly distributed on China's western area, but because China belongs to what natural calamity took place frequently
Country, especially geological process, often cause the destruction of rammed earth wall body construction more serious, so as to cause substantial amounts of personnel to hinder
Die and property loss.Under horizontal earthquake action, the destruction of loam wall often concentrates on the seam crossing of adjacent rammed earth layer, illustrates to ram
Seam crossing in cob wall between layers is the weak part in wall.How the horizontal shear energy of in loam wall seam crossing is improved
Power, the globality for improving wall is a problem demanding prompt solution.
Currently in order to improving the shear behavior of rammed earth wall member, it will usually inserted in adjacent rammed earth layer in work progress
Round log rod or bamboo chip as shear connector, to improve shear behavior.By in rammed earth wall member reasonable Arrangement shear connector,
Overall performance, anti-side rigidity and the shear strength of enhancing cob wall component can preferably be added, but these shear connectors are past
Toward there are problems that shear strength is small, durability.
The content of the invention
The present invention for solve known technology present in technical problem and provide a kind of prefabricated shear connector of cross, its
Forming method and loam wall.The prefabricated shear connector of the cross has shearing strength and good durability higher, can increase
Strong rammer cob wall seam crossing shear behavior；Loam wall has shear behavior higher, anti-side rigidity higher and with preferably whole
Body.
The present invention is adopted the technical scheme that to solve technical problem present in known technology：
The prefabricated shear connector of cross, it is characterised in that：The prefabricated shear connector of cross is prefabricated reinforced concrete
Structure, it is made up of outer casting concrete part and the framework of steel reinforcement being built in outer casting concrete part；Pour coagulation outward
The outline of native part is in be connected by arc surface transition between cross column, and the adjacent side of composition outline；The steel
Muscles and bones frame is that two plane wire nettings intersect vertically the cross framework of steel reinforcement structure of composition.
Preferably：The planar metal net uses the matrix pattern reinforcing bar web frame being made up of crisscross reinforcing bar.
The forming method of the prefabricated shear connector of cross, it is characterised in that including following forming step：
S1 colligation cross frameworks of steel reinforcement；
S2 carries out formwork with plank sheathing customized：Model is spliced to form by the two points of moulds in left and right, energy after two points of mould splicings
The die cavity consistent with the lateral profiles of the prefabricated shear connector of cross is formed, before two points of mould splicings, first in two points of moulds
Brush releasing agent treatment is carried out on the side for constituting die cavity；After two points of moulds are spliced to form die cavity, the first lower orientation in die cavity
Placement location bottom spacer, the good cross framework of steel reinforcement of colligation then be placed into the center of die cavity and be supported on
On the spacer of bottom, and one layer or the multilayer sidepiece spacer arranged up and down are set on the periphery of cross framework of steel reinforcement,
Cross framework of steel reinforcement is carried out spacing, wherein the bottom of the thickness of bottom spacer and the prefabricated shear connector of cross is mixed
Coagulate the consistency of thickness of soil；
S3 is fixed using the bolt supporting with model to model, and checks the sidepiece spacer being arranged in die cavity
Whether cross framework of steel reinforcement is fixed；
S4 above-mentioned steps complete casting concrete in the die cavity of backward model, fully to be vibrated in casting process, it is to avoid leakage
Shake phenomenon；
S5 pours watering maintenance daily after finishing, and maintenance reaches form removal after 28 days, the prefabricated shear connector shaping of cross.
Loam wall, loam wall is made up of multilayer rammed earth setting up and down, it is characterised in that：In each layering portion of loam wall
Position be embedded with by spacing arrange the prefabricated shear connector of multiple above-mentioned cross, and upper and lower two adjacent layering positions ten
The prefabricated shear connector of font is arranged according to mode successively staggeredly；The prefabricated shear connector of each cross is in vertical
State, and the prefabricated shear connector of each cross enters with internal two planar metals net and loam wall metope in the direction of 45 ° of angles
Row is set；In the top half embedment upper strata rammed earth of prefabricated shear connector, the latter half embedment lower floor of prefabricated connector rams
In soil.
Preferably：It is in vertical that medium position in every layer of rammed earth of loam wall along the vertical direction is also uniformly buried multiple
The prefabricated shear connector of above-mentioned cross of state, and the prefabricated shear connector of each cross is with internal two planar metals net and rammer
Cob wall metope is configured in the direction of 45 ° of angles.
The present invention has the advantages and positive effects that：
The prefabricated shear connector of this cross, inside can be carried by a relatively large margin using the framework of steel reinforcement of criss-cross fashion
Rise prefabricated shear connector shear-carrying capacity；Framework of steel reinforcement outside uses outer casting concrete, while shearing strength is improved,
Can also effectively protect reinforcing bar not by corrosion, so, can reach good endurance quality；By the prefabricated shear connections of the cross
Part is embedded in the layering position of loam wall, and four positions constituted between side of the prefabricated shear connector of cross are formed with rammed earth
Occlusion, is greatly improved the shear behavior of loam wall seam crossing.The forming method of the prefabricated shear connector of this cross, it is ensured that
The Forming Quality of shear connector.This loam wall is by the adjacent layering cross prefabricated shear connector of interlaced arrangement, making
Loam wall has reached shear behavior higher, improves the anti-side rigidity and globality of loam wall, and then improve the anti-of loam wall
Fragility and shock resistance.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the prefabricated shear connector of cross of the present invention；
Fig. 2 is the dimensional structure diagram of the prefabricated shear connector inside framework of steel reinforcement of cross of the present invention；
Fig. 3 is the cross-sectional view of the prefabricated shear connector of cross of the present invention；
Fig. 4 is the A-A sectional views of Fig. 3；
Fig. 5 is the planar structure schematic diagram of loam wall of the present invention；
Fig. 6 is the dimensional structure diagram of loam wall of the present invention.
In figure：1st, the prefabricated shear connector of cross；1-1, outer casting concrete part；1-2, framework of steel reinforcement part；1-
2-1, planar metal net；1, loam wall.
Specific embodiment
For the content of the invention of the invention, feature and effect can be further appreciated that, following examples are hereby enumerated, and coordinate accompanying drawing
Describe in detail as follows：
The prefabricated shear connector of cross, refers to Fig. 1-4, and the prefabricated shear connector 1 of cross is precast reinforced coagulation
Soil structure, it is made up of outer casting concrete part 1-1 and the framework of steel reinforcement 1-2 being built in outer casting concrete part.Outward
The outline of casting concrete part is in be connected by arc surface transition between cross column, and the adjacent side of composition outline
Connect.The framework of steel reinforcement is that two plane wire netting 1-2-1 intersect vertically the cross framework of steel reinforcement knot of composition.Poured outside above-mentioned
Connected using arc surface transition between the adjacent side of the outline of concrete parts, so, buried by shear connector
In loam wall body, stress concentration can be prevented effectively from and cause wall part cleavage fracture, while shearing resistance company can also be effectively improved
The work compound performance of fitting and loam wall.
In said structure, the planar metal network optimization choosing is using the matrix pattern bar-mat reinforcement knot being made up of crisscross reinforcing bar
Structure.
The forming method of the prefabricated shear connector of cross, including following forming step：
S1 colligation cross frameworks of steel reinforcement；
S2 carries out formwork with plank sheathing customized：Model is spliced to form by the two points of moulds in left and right, can shape after two points of mould splicings
Into the die cavity consistent with the lateral profiles of the prefabricated shear connector of cross, before two points of mould splicings, first in two points of mould structures
Brush releasing agent treatment is carried out on into the side of die cavity, the purpose of brush releasing agent treatment is：Demoulding is carried out after being easy to subsequent forming, than
Such as brush used oil, concrete parting agent MK-CR, composite releasing agent；After two points of moulds are spliced to form die cavity, first in mould
Lower position in chamber places bottom spacer, and then the good cross framework of steel reinforcement of colligation is placed into the centre bit of die cavity
Put and be supported on the spacer of bottom, and one layer or the multilayer side arranged up and down are set on the periphery of cross framework of steel reinforcement
Portion's spacer, carries out spacing to cross framework of steel reinforcement, and the wherein prefabricated shearing resistance of the thickness of bottom spacer and cross connects
The consistency of thickness of the lower concrete of fitting；
S3 is fixed using the bolt supporting with model to model, and checks the sidepiece spacer being arranged in die cavity
Whether cross framework of steel reinforcement is fixed；
S4 above-mentioned steps complete casting concrete in the die cavity of backward model, fully to be vibrated in casting process, it is to avoid leakage
Shake phenomenon；
S5 pours watering maintenance daily after finishing, and maintenance reaches form removal after 28 days, the prefabricated shear connector shaping of cross.
Loam wall, refers to Fig. 5 and 6, and loam wall 1 is made up of multilayer rammed earth setting up and down, in each point of loam wall
Layer position is embedded with multiple prefabricated shear connectors of above-mentioned cross, and multiple prefabricated shear connectors of cross are according between certain
Away from setting.Two prefabricated shear connectors of cross at adjacent layering position up and down of loam wall are according to mode cloth successively staggeredly
Put.The prefabricated shear connector of each cross is in erectility, and the prefabricated shear connector of each cross is flat with internal two
Face wire netting is configured with loam wall metope in the direction of 45 ° of angles.The top half embedment upper strata of prefabricated shear connector
In rammed earth, in the latter half embedment lower floor rammed earth of prefabricated connector.
In said structure, the medium position in every layer of rammed earth of loam wall along the vertical direction is also uniformly buried multiple in straight
The prefabricated shear connector of above-mentioned cross of vertical state, and the prefabricated shear connector of each cross is with internal two planar metals net
It is configured in the direction of 45 ° of angles with loam wall metope.Connected by setting shearing resistance in the medium position of every layer of rammed earth of loam wall
Fitting, further increases the shearing strength of loam wall and the globality of loam wall.
The prefabricated shear connector of this cross compared to existing use round log rod or bamboo chip as shear connector structure,
Due to using reinforced concrete structure, its shearing strength is increased substantially, and can prolonged application be not destroyed in loam wall, reach
Good durability is arrived.The prefabricated shear connector of this cross is applied in loam wall, can overcome loam wall shear-carrying capacity
Low and easy to crack defect, effectively improves the load-carrying properties of loam wall globality and entirety.
Claims (5)
1. the prefabricated shear connector of cross, it is characterised in that：The prefabricated shear connector of cross is prefabricated reinforced concrete knot
Structure, it is made up of outer casting concrete part and the framework of steel reinforcement being built in outer casting concrete part；Outer casting concrete
Partial outline is in be connected by arc surface transition between cross column, and the adjacent side of composition outline；The reinforcing bar
Skeleton is that two plane wire nettings intersect vertically the cross framework of steel reinforcement structure of composition.
2. the prefabricated shear connector of cross according to claim 1, it is characterised in that：The planar metal net use by
The matrix pattern reinforcing bar web frame that crisscross reinforcing bar is constituted.
3. the forming method of the prefabricated shear connector of cross, it is characterised in that including following forming step：
S1 colligation cross frameworks of steel reinforcement；
S2 carries out formwork with plank sheathing customized：Model is spliced to form by the two points of moulds in left and right, can be formed after two points of mould splicings
The die cavity consistent with the lateral profiles of the prefabricated shear connector of cross, before two points of mould splicings, is first constituted in two points of moulds
Brush releasing agent treatment is carried out on the side of die cavity；After two points of moulds are spliced to form die cavity, first the lower position in die cavity is put
Bottom set portion spacer, is then placed into the good cross framework of steel reinforcement of colligation the center of die cavity and is supported on bottom
On spacer, and one layer or the multilayer sidepiece spacer arranged up and down are set on the periphery of cross framework of steel reinforcement, to ten
Font framework of steel reinforcement carries out spacing, the wherein lower concrete of the thickness of bottom spacer and the prefabricated shear connector of cross
Consistency of thickness；
Whether S3 is fixed using the bolt supporting with model to model, and checks be arranged on sidepiece spacer in die cavity
Cross framework of steel reinforcement is fixed；
S4 above-mentioned steps complete casting concrete in the die cavity of backward model, fully to be vibrated in casting process, it is to avoid leakage is shaken is existing
As；
S5 pours watering maintenance daily after finishing, and maintenance reaches form removal after 28 days, the prefabricated shear connector shaping of cross.
4. loam wall, loam wall is made up of multilayer rammed earth setting up and down, it is characterised in that：At each layering position of loam wall
The prefabricated shear connector of the cross suitable for loam wall described in the multiple claims 1 or 2 arranged as spacing is embedded with,
And the prefabricated shear connector of cross at upper and lower two adjacent layering positions is arranged according to mode successively staggeredly；Each cross
Prefabricated shear connector is in erectility, and the prefabricated shear connector of each cross is with internal two planar metals net and rammed earth
Wall metope is configured in the direction of 45 ° of angles；In the top half embedment upper strata rammed earth of prefabricated shear connector, prefabricated connection
In the latter half embedment lower floor rammed earth of part.
5. loam wall according to claim 4, it is characterised in that：In every layer of rammed earth of loam wall along the vertical direction in
Also uniformly bury multiple prefabricated shear connectors of cross in erectility, and the prefabricated shear connections of each cross in portion position
Part is configured with loam wall metope with internal two planar metals net in the direction of 45 ° of angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611207167.0A CN106677384A (en) | 2016-12-23 | 2016-12-23 | Cross-shaped prefabricated shear connector, forming method thereof and loam wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611207167.0A CN106677384A (en) | 2016-12-23 | 2016-12-23 | Cross-shaped prefabricated shear connector, forming method thereof and loam wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106677384A true CN106677384A (en) | 2017-05-17 |
Family
ID=58871448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611207167.0A Pending CN106677384A (en) | 2016-12-23 | 2016-12-23 | Cross-shaped prefabricated shear connector, forming method thereof and loam wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106677384A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113998967A (en) * | 2021-02-05 | 2022-02-01 | 四川永存建筑工程有限公司 | Rammed earth material for lightweight rammed earth wall and preparation method and application thereof |
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|---|---|---|---|---|
| CN2491518Y (en) * | 2000-06-16 | 2002-05-15 | 何伟国 | Wall connection member |
| JP2006009394A (en) * | 2004-06-25 | 2006-01-12 | Traverse:Kk | Joining structure for steel pipe |
| CN102561546A (en) * | 2011-12-20 | 2012-07-11 | 北京万科企业有限公司 | Shear connector for prefabricated thermal-insulating sandwich walls and production method thereof |
| CN203654563U (en) * | 2013-11-25 | 2014-06-18 | 辽宁工业大学 | Bidirectional composite floor slab with cross-shaped ribs |
| CN203878772U (en) * | 2014-04-27 | 2014-10-15 | 绍兴精工绿筑集成建筑系统工业有限公司 | Fixedly-connected joint of rectangular component |
| CN105822023A (en) * | 2016-05-09 | 2016-08-03 | 天津城建大学 | Prefabricated shear-resistant connecting part for rammed-earth wall, molding method of prefabricated shear-resistant connecting part and rammed-earth wall |
| CN205742548U (en) * | 2016-05-22 | 2016-11-30 | 中交第一航务工程局有限公司 | A kind of pre-shear stud being embedded in concrete |
| CN206346341U (en) * | 2016-12-23 | 2017-07-21 | 天津城建大学 | Suitable for the prefabricated shear connector of cross and loam wall of loam wall |
-
2016
- 2016-12-23 CN CN201611207167.0A patent/CN106677384A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2491518Y (en) * | 2000-06-16 | 2002-05-15 | 何伟国 | Wall connection member |
| JP2006009394A (en) * | 2004-06-25 | 2006-01-12 | Traverse:Kk | Joining structure for steel pipe |
| CN102561546A (en) * | 2011-12-20 | 2012-07-11 | 北京万科企业有限公司 | Shear connector for prefabricated thermal-insulating sandwich walls and production method thereof |
| CN203654563U (en) * | 2013-11-25 | 2014-06-18 | 辽宁工业大学 | Bidirectional composite floor slab with cross-shaped ribs |
| CN203878772U (en) * | 2014-04-27 | 2014-10-15 | 绍兴精工绿筑集成建筑系统工业有限公司 | Fixedly-connected joint of rectangular component |
| CN105822023A (en) * | 2016-05-09 | 2016-08-03 | 天津城建大学 | Prefabricated shear-resistant connecting part for rammed-earth wall, molding method of prefabricated shear-resistant connecting part and rammed-earth wall |
| CN205742548U (en) * | 2016-05-22 | 2016-11-30 | 中交第一航务工程局有限公司 | A kind of pre-shear stud being embedded in concrete |
| CN206346341U (en) * | 2016-12-23 | 2017-07-21 | 天津城建大学 | Suitable for the prefabricated shear connector of cross and loam wall of loam wall |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113998967A (en) * | 2021-02-05 | 2022-02-01 | 四川永存建筑工程有限公司 | Rammed earth material for lightweight rammed earth wall and preparation method and application thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |