CN105804277B - Steel bushing constrains the steel reinforced concrete shear walls of both ends root area - Google Patents
Steel bushing constrains the steel reinforced concrete shear walls of both ends root area Download PDFInfo
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- CN105804277B CN105804277B CN201610308358.XA CN201610308358A CN105804277B CN 105804277 B CN105804277 B CN 105804277B CN 201610308358 A CN201610308358 A CN 201610308358A CN 105804277 B CN105804277 B CN 105804277B
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- steel
- wall
- steel bushing
- shear
- reinforced concrete
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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
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
-
- 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
- E04B2/58—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal
Abstract
The present invention provides a kind of steel reinforced concrete shear walls of steel bushing constraint both ends root area, it is close to shaped steel root at shear wall both ends and is provided with steel bushing, steel bushing forms confining region to the concrete of wall both ends bottom, shaped steel root is located in concrete in restraint area, sidewise restraint effect improves the compressive ultimate strength and compressive ultimate strain of concrete, so as to improve the overall crooked deformability of shear wall.Wall basis is stretched into steel bushing bottom, and built-in length is the half of thickness of wall body, so as to improve the shear resistance of wall, avoids wall root that insertion failure by shear occurs.Steel bushing, which stretches into foundation, to be isolated with oilpaper etc. with periphery concrete, avoids sleeve from participating in tension, and the deformability for influenceing tension side shaped steel plays.This steel reinforced concrete shear walls have the characteristics of easy for construction, shock resistance is strong, low cost, especially suitable for being configured with the steel reinforced concrete mid-rise shear wall of vertical shaped steel using yi word pattern section, Qiang Duan sleeper area.
Description
Technical field
The present invention relates to steel reinforced concrete shear walls, belong to technical field of structural engineering.
Background technology
Shear wall is to be used to bear vertical load and the wall of lateral load in building structure, and wall end does not allow to set the edge of a wing
Or during bright post generally use yi word pattern wall section pattern.The ordinary reinforced concrete mid-rise shear wall in yi word pattern section is perpendicular
Diagonal crack, the pressure of the neighbouring concrete of Cyclic Loading bottom web diagonal crack are easily produced first to pressure and horizontal loading bottom web area
Broken and peeling causes brittle break, and shear fails pattern causes such wall to show poor anti-seismic performance.It is general in order to improve
The anti-seismic performance of logical reinforced concrete wall, steel reinforced concrete sleeper or concrete filled steel tube cylindricality are set in shear wall both sides of the edge
Into constraint frame.For middle high and low-rise shear wall of the shear span ratio less than 2, constraint frame and failure of the wall web under earthquake
Order is to determine the principal element of wall damage pattern and anti-seismic performance.
Use of the steel reinforced concrete shear walls of vertical shaped steel in current architectural engineering built in the component of both sides of the edge is more
To be extensive.When the final failure mode of the steel reinforced concrete mid-rise shear wall in yi word pattern section is curved scissors type, shear wall root is mixed
The conquassation and peeling of continuation occur under drawing-pressure cyclic load for solidifying soil, cause member bottom section to bear axle pressure-moment of flexure-shearing
Coefficient effective cross-sectional area gradually weakens, wall because the compression shear of compressive region act on and occurred level crack suddenly insertion cut
Cut through bad, show poor ductile deformation's ability.
Concrete filled steel tube in steel casing pack concrete, the steel bushing pipe concrete in concrete component encased steel plate
Structure has been obtained for substantial amounts of research and application in civil engineering.Concrete filled steel tube and steel sleeve concrete structure are equal
It is using the lateral expansion deformation of its inner concrete of steel tube confinement, so as to provide the concrete component side of compression appropriate enclose
Pressure, by making concrete be in three axle pressured states, so as to improve the peak value compression of concrete and compressive ultimate strain.Steel bushing
Pipe concrete structure and the difference of concrete filled steel tube be, the concrete parts one that steel sleeve itself is not constrained with it
Act the pressure undertaken along component axis direction, the only transversely deforming to concrete is reliably constrained.
The content of the invention
It is an object of the invention to provide a kind of steel reinforced concrete shear walls of steel bushing constraint both ends root area, this type
Steel concrete shear wall has the characteristics of strong easy for construction, shock resistance, low cost, especially suitable for using yi word pattern section,
Qiang Duan sleeper area is configured with the steel reinforced concrete mid-rise shear wall of vertical shaped steel.
The steel reinforced concrete shear walls of steel bushing constraint both ends root area proposed by the present invention, are tight at shear wall both ends
Patch shaped steel root is provided with steel bushing, and steel bushing forms confining region to the concrete of wall both ends bottom, and shaped steel root is positioned at constraint
In area's concrete, sidewise restraint effect improves the compressive ultimate strength and compressive ultimate strain of concrete, so as to improve shear wall
Overall crooked deformability.Wall basis is stretched into steel bushing bottom, and built-in length is the half of thickness of wall body, so as to carry
The shear resistance of high wall, avoid wall root that insertion failure by shear occurs；Steel bushing stretch into foundation can with oilpaper etc. with
Periphery concrete isolation, avoids sleeve from participating in tension, and the deformability for influenceing tension side shaped steel plays.The transverse direction of distribution in wall
Reinforcing bar and sleeper area vertical reinforcement can be penetrated in steel bushing, and wall and steel bushing concrete in restraint area pour to be formed simultaneously.Steel
The thickness of sleeve is identical with thickness of wall body, highly according to detailing requiments or calculates determination with width.
The thickness of the steel bushing is identical with the thickness of wall, highly with width according to following principle by detailing requiments or based on
Calculate and determine：Avoid wall root from occurring concentrating insertion failure by shear, avoid moving at the top of steel bushing in concentration insertion failure by shear
Position.
The steel bushing is by the steel batten plate of embedment wall medial surface, the leading flank and trailing flank steel in vertical thickness of wall body direction
Plate and positioned at two lateral surfaces of wall left or right steel plate by welding or bolt connection form.Steel bushing is embedded to wall medial surface
Steel batten plate genesis analysis have polylith, space is left between them, forms the perforate passed through for horizontal reinforcement.Steel bushing will have foot
Enough rigidity, ensure that sleeve inner concrete is constrained well.
The present invention using yi word pattern section, Qiang Duan sleeper area suitable for being configured with height the steel reinforced concrete of vertical shaped steel and being cut
Power wall, failure mode of the wall under lateral action are that flexure type destroys or curved scissors type destroys.The present invention, which is not suitable for cutting, to be crushed
Low-rise shear wall based on bad.
The method have the advantages that：
1st, while holding yi word pattern section steel reinforced concrete shear walls original advantage, using steel bushing to wall both ends
Root area enters row constraint, so as to prevent that the phenomenon of conquassation peeling occurs in wall root area under lateral load, improves wall and exists
Ductile deformation's ability under earthquake.
2nd, steel bushing provides Confinement effect for the restrained area's concrete in wall root, improves the peak of restrained area's concrete
It is worth compressive strain and compressive ultimate strain, so that the concrete of shear wall web and frame columnar region can more preferable compatible deformation；
Transversely distributed steelbar and sleeper area vertical reinforcement or shaped steel can be penetrated in steel pipe in wall, so that the globality of wall is increased
By force.
3rd, steel bushing stretches into foundation and can isolated with oilpaper etc. with periphery concrete, avoids sleeve from participating in tension, influences
The deformability of tension side shaped steel plays.In the buried foundation of steel bushing bottom, steel bushing section participates in shearing resistance effect, can improve
The shear resistance of wall, postpone or avoid wall that failure by shear occurs.
4th, the volume of steel bushing constraint wall both ends root area is smaller compared with wall volume, extra increased steel number
Measure relatively fewer, economy is notable compared with other engineering measures of enhanced type steel concrete shear force wall shock resistance, is easy to
Popularization and application in engineering.
Brief description of the drawings
Fig. 1 is that the steel bushing of the present invention constrains the steel reinforced concrete shear walls elevation of both ends root area
Fig. 2 is the enlarged drawing of steel bushing.
Fig. 3 is that the steel bushing of the present invention constrains illustrating with steel mode for the steel reinforced concrete shear walls of both ends root area
Figure；
Fig. 4 A, Fig. 4 B and A-A, B-B, C-C profile that Fig. 4 C are Fig. 3；
In figure, 1 is steel reinforced concrete shear walls wall, and 2 be wall basis, and 3 be steel bushing, and 4 be the perpendicular of Qiang Duan sleeper area
To shaped steel, 55 be the steel batten plate that steel bushing is embedded to wall medial surface, and 6 be wall leading flank and trailing flank steel plate, 7 be a wall left side,
The steel plate of right two lateral surfaces, 8 be the longitudinal reinforcement in sleeper area, and 9 be the transverse steel of distribution in wall, and 10 be two layers of steel of wall body
Lacing wire between muscle mesh sheet, 11 be sleeper stirrup, and 12 be the genesis analysis reinforcing bar in the middle part of web.
Embodiment
The present invention is described in detail below in conjunction with the accompanying drawings：
As shown in Fig. 1, Fig. 3 and Fig. 4 A, Fig. 4 B and Fig. 4 C, steel bushing of the invention constrains the shaped steel of both ends root area
Concrete shear force wall by concrete wall 1, wall basis 2, steel bushing 3, the vertical shaped steel 4 in Qiang Duan sleeper area, sleeper area it is vertical
Formed to reinforcing bar 8 and stirrup 11, web distribution transverse steel 9 and longitudinal reinforcement 12.
The root that shaped steel 4 is close at steel reinforced concrete shear walls both ends is provided with steel bushing 3, to the mixed of the both ends bottom of wall 1
Solidifying soil forms confining region；Wall basis 2 is stretched into the bottom of steel bushing 3, and built-in length is the half of thickness of wall body.Steel bushing 3
Stretch into the part on wall basis 2 separation layer etc. can be made of oilpaper and isolate with periphery concrete.The He of transverse steel 9 of distribution in wall
Sleeper area longitudinal reinforcement 8 can be penetrated in steel bushing 3, and wall and steel bushing concrete in restraint area pour to be formed simultaneously.
As shown in Fig. 2 steel bushing 3 is by the steel batten plate 5 in embedment wall, the leading flank and rear side in vertical thickness of wall body direction
Face steel plate 6 and lateral surface steel plate 7 are formed by welding or bolt connection, and steel batten plate genesis analysis has polylith, are left between them
Space, form the perforate passed through for horizontal reinforcement.
As shown in shown in Fig. 4 A, Fig. 4 B and Fig. 4 C, the thickness of steel bushing 3 is identical with the thickness of wall 1, highly with width root
Principle is descended according to this by detailing requiments or calculates determination：Avoid wall root from occurring concentrating insertion failure by shear, avoid concentrating insertion
Steel bushing tip position is moved in failure by shear.
Claims (5)
- A kind of 1. steel reinforced concrete shear walls of steel bushing constraint both ends root area, it is characterised in that：The steel reinforced concrete Shear wall（1）It is close to shaped steel in both ends（4）Root is provided with steel bushing（3）, steel bushing（3）The concrete of wall both ends bottom is formed Confining region, shaped steel（4）Root is located in concrete in restraint area；Wall basis is stretched into the steel bushing bottom（2）, built-in length is The half of thickness of wall body；Steel bushing, which stretches into be provided between wall foundation and periphery concrete, avoids sleeve from participating in tension Separation layer；The concrete of wall and the steel bushing confining region pours to be formed simultaneously；Steel bushing（3）Thickness it is identical with the thickness of wall, highly by detailing requiments or calculated true according to following principle with width It is fixed：Avoid wall root from occurring concentrating insertion failure by shear, avoid moving to steel bushing tip position in failure by shear.
- 2. the steel reinforced concrete shear walls of steel bushing constraint both ends root area according to claim 1, it is characterised in that： The steel bushing（3）By the steel batten plate of embedment wall medial surface（5）, leading flank and trailing flank steel perpendicular to thickness of wall body direction Plate（6）With the steel plate positioned at two lateral surfaces of wall left or right（7）By being welded, steel bushing is embedded to the steel of wall medial surface Batten plate leaves space in genesis analysis polylith, between them, forms the perforate passed through for horizontal reinforcement.
- 3. the steel reinforced concrete shear walls of steel bushing constraint both ends root area according to claim 1, it is characterised in that： The separation layer is isolated using oilpaper or foam paper.
- 4. the steel reinforced concrete shear walls of steel bushing constraint both ends root area according to claim 1, it is characterised in that： The transverse steel of distribution in the steel reinforced concrete shear walls wall（9）And longitudinal reinforcement（8）Penetrate in steel bushing.
- 5. the steel reinforced concrete shear walls of steel bushing constraint both ends root area according to claim 1, it is characterised in that： Steel reinforced concrete shear walls are the steel reinforced concrete mid-rise shear wall that square-section yi word pattern both ends configure vertical shaped steel, in described High-rise shear wall is exactly the shear wall that failure mode of the wall under lateral action destroys for flexure type or curved scissors type destroys.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610308358.XA CN105804277B (en) | 2016-05-11 | 2016-05-11 | Steel bushing constrains the steel reinforced concrete shear walls of both ends root area |
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| CN201610308358.XA CN105804277B (en) | 2016-05-11 | 2016-05-11 | Steel bushing constrains the steel reinforced concrete shear walls of both ends root area |
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| CN105804277A CN105804277A (en) | 2016-07-27 |
| CN105804277B true CN105804277B (en) | 2018-01-02 |
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| CN106760054B (en) * | 2017-03-01 | 2023-01-31 | 同济大学 | Prefabricated reinforced concrete shear wall |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH04108937A (en) * | 1990-08-29 | 1992-04-09 | Taisei Corp | Joining method for precast concrete wall plate |
| DE29612004U1 (en) * | 1996-07-10 | 1996-09-12 | Voskamp Hein Douwinus | Tubular wall positioning profile |
| CN2775170Y (en) * | 2005-03-07 | 2006-04-26 | 北京工业大学 | Built-in lattice type steel bar hidden support shear wall |
| JP2008025096A (en) * | 2006-07-18 | 2008-02-07 | Daiei Probis Kk | Framework-furring strip integrated structure of steel-frame building |
| CN203684454U (en) * | 2014-01-01 | 2014-07-02 | 广州大学 | Concrete-filled steel tube frame combined shear wall |
| CN104947831A (en) * | 2015-07-07 | 2015-09-30 | 华北理工大学 | Prefabricated assembly type profile steel concrete shear wall and construction method thereof |
| CN205712588U (en) * | 2016-05-11 | 2016-11-23 | 重庆大学 | A kind of steel reinforced concrete shear walls entering row constraint to body of wall two ends root area |
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