CN106869409A - High-performance pre-buried steel anchor slab - Google Patents
High-performance pre-buried steel anchor slab Download PDFInfo
- Publication number
- CN106869409A CN106869409A CN201710056157.XA CN201710056157A CN106869409A CN 106869409 A CN106869409 A CN 106869409A CN 201710056157 A CN201710056157 A CN 201710056157A CN 106869409 A CN106869409 A CN 106869409A
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- China
- Prior art keywords
- web
- shaped plate
- anchor slab
- teeth
- dentation
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- 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
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- 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
Abstract
The invention discloses a kind of high-performance pre-buried steel anchor slab, including dentation T-shaped plate and dowel, the web of the dentation T-shaped plate is teeth shape, and the gap between two teeth can pass through stirrup, the width of monodentate tooth is less than stirrup clear spacing, and the dowel is welded on the side wing edge of web two of dentation T-shaped plate；The dentation T-shaped plate is formed by the web of the cutting i shaped steel that misplaces, it is ensured that the teeth web of dentation T-shaped plate and the edge of a wing form one；Anchor slab or bending web form L-shaped anchor slab under the end welding of T-shaped plate, strengthen its anchoring ability in concrete.T-shaped plate web of the invention is corresponding with node Board position, can more effectively power transmission；Misplace " being integrally formed " the mode technical maturity for cutting, and saves material, reduces cost, and can avoid welding, improves its performance；The spacing of cutting can be adjusted flexibly according to concrete component stirrup position, reduce difficulty of construction.
Description
Technical field
The invention belongs to field of civil engineering, it is related to a kind of high-performance for connecting reinforced concrete frame and bracing members
Pre-buried steel anchor slab.
Background technology
Reinforced concrete frame structure is the bearing system for being constituted that is connected in rigid connection form by Vierendeel girder and frame column, is had
The advantages of space flexible arrangement, lighter deadweight, in seismic fortification intensity, lower ground area is applied to multilayer and partial high-level is built.
But itself belong to flexible structure, anti-side rigidity is smaller, as the raising of region seismic fortification intensity and building are high
The increase of degree, the horizontal force with wind load and geological process as representative is dramatically increased, the lateral deformation of reinforced concrete frame
Increase, and then cause structure destruction to occur or even collapses, seriously threaten the life security of people.
Bracing members are set in reinforced concrete frame structure and form support-frame structure, on the one hand can improve reinforcing bar
The overall anti-side rigidity of concrete frame structure, prevents structure from larger deformation occurring under horizontal force, enhancing structure it is anti-
Collapse capacity, on the other hand also improves the maxi-mum height of reinforced concrete frame.Without acceptance of persons can be by support-framework by having
System is divided into center support frame and accentric support framework；Common support framework and power consumption branch can be classified as by support classification
Support frame frame.In support-frame system, support as first anti-vibration defense lines, carry larger horizontal shear；Support is lost
After effect, frame structure continues to play its performance as second anti-vibration defense lines.
It is general between concrete and bracing members to be connected with each other with pre-buried steel member, to ensure that bracing members give full play to its property
Can, the connecting node between concrete frame and bracing members can not be destroyed prior to support, therefore the good and bad meeting of performance of built-in fitting is big
The performance degree of big influence bracing members, and then affect the anti-seismic performance of total.Diagonally disposed support is typically passed
Oblique axle power is passed, correspondingly, pre-buried steel member cuts compound stress in drawing.
Traditional pre-buried steel member is welded by upper anchor slab and dowel, and its principle is resisted using the shearing strength of dowel
The shearing that support is transmitted, the pulling force transmitted using the bonding resistance support of dowel and concrete.But because gusset plate is directly passed
The reason for power, all dowels are not uniform stressed, and the force acting on reinforcement steel of anchorage in the middle part of anchor slab is maximum, the commissure of corresponding position
In curved scissors compound stress, often destroyed prior to dowel.
To improve the breakout capacity of the pre-buried steel member of dowel formula, someone welds one piece of plate shape of casting anchor again in the free end of dowel
Into clamping plate type built-in fitting, although the built-in fitting of this form improves its anchoring property and breakout capacity, cannot still change
The drawbacks of dowel is destroyed prior to both sides dowel in the middle of becoming.
The content of the invention
It is of the invention easily first to solve force acting on reinforcement steel of anchorage maximum, commissure in the middle of traditional dowel formula built-in fitting and clamping plate type built-in fitting
A kind of problem destroyed, it is proposed that high-performance pre-buried steel anchor slab.
The technical solution adopted by the present invention is：A kind of high-performance pre-buried steel anchor slab, including dentation T-shaped plate and dowel；
The dentation T-shaped plate is made up of teeth web and the edge of a wing, and teeth web is vertically positioned on the median surface on the edge of a wing；It is described
Dentation T-shaped plate is formed by the web of the cutting i shaped steel that misplaces so that the teeth web of dentation T-shaped plate and the edge of a wing form one
Body, it is to avoid welding；Gap between two described teeth webs can pass through the width of stirrup, teeth web to be less than beam column built from concrete
Stirrup clear spacing；The end portion width of the teeth web of the T-shaped plate is not less than the root width being connected with the edge of a wing, is casted anchor with increasing
Plate and the contact area of concrete, improve its anchoring ability；The dowel is welded in the side wing edge of teeth web two of dentation T-shaped plate
On.
Preferably, it is straight line that the teeth web of the T-shaped plate forms two sides long by the cutting that misplaces.
Preferably, the teeth web of the T-shaped plate cuts into two broken lines side long by dislocation, pawl shape is formed, increased
Add web to be accumulated with concrete surface while also increasing the snap-in force of web and concrete, improve its anchoring ability.
Preferably, the end vertical of the teeth web of the T-shaped plate welds lower anchor slab to strengthen teeth web in coagulation
Anchoring property in soil.The area of the lower anchor slab is no less than 5 times of teeth web plate section product.
Preferably, the end of the teeth web of the T-shaped plate increase not less than 90 degree of L-shaped anchor heads of bent
Strong anchoring property of the teeth web in concrete；The L-shaped anchor slab end bending side product is no less than teeth web plate section product
4 times.
Bracing members are connected by gusset plate with pre-buried steel member, for the clamping plate of traditional dowel formula built-in fitting and improvement type
For formula built-in fitting, the dowel in the middle of anchor slab is bigger than being arranged in the force acting on reinforcement steel of anchorage of anchor slab both sides, it should increase and node
Plate is in the dowel area of same position, therefore it is pre-buried for whole that the dowel in centre position is become into the bigger web of sectional area
The stress of part is advantageously.Cause the situation that it first destroys in view of weld defect simultaneously, it is I-shaped using dislocation cutting
The method of steel can avoid web with anchor slab junction as weak location.Additionally, the difference of cutting mode change web with
The contact area and snap-in force of concrete, strengthen the withdrawal resistance of embedded board.The cutting mode technical maturity of this " being integrally formed ",
The spacing of cutting can be adjusted flexibly according to concrete component stirrup position, reduce difficulty of construction, while material can also be saved,
Reduces cost, improves its performance.
Anchor slab or web is directly bent L-shaped anchor slab can improve the resistance to plucking energy of built-in fitting under web lower weld
Power, the latter can avoid welding portion as weak location.Wide web is become into board of variable section wide at the top and narrow at the bottom, can be abundant
Embody the up big and down small actual conditions of web stress, it is ensured that whole web is not in the case of the anchoring of web bottom is effective
Problem, it is also possible to further increase the contact area of lower anchor slab and concrete, and improve its anchoring property.Line of cut is changed into folding
It is linear, the snap-in force before web and concrete can be greatly increased, and then greatly increase embedded board anchoring ability.
The invention has the advantages that：
1., due to the force-transfer characteristic of gusset plate, the middle force acting on reinforcement steel of anchorage of traditional dowel formula built-in fitting is maximum, and high-performance is pre-buried
Steel anchor slab changes the dowel in the middle of traditional dowel formula built-in fitting into sectional area bigger tooth form web, to resist what gusset plate was transmitted
Load, power transmission is more reasonable.
2. traditional dowel formula built-in fitting dowel uses solder design with web, and high-performance pre-buried steel anchor slab is cut using dislocation
The method " being integrally formed " of i shaped steel is cut, material, reduces cost is saved, it is to avoid web turns into weak position with the junction of anchor slab
Put.The spacing of cutting can be adjusted flexibly according to concrete component stirrup position, reduce difficulty of construction.
3. anchor slab or by the L-shaped anchor slab of web bent under high-performance pre-buried steel anchor slab lower weld, by lower anchor slab
To the local compression of concrete to improve its anchoring property, and the latter need not be welded, the connection of lower anchor slab and web
Place will not turn into weak location.
4. the web of high-performance pre-buried steel anchor slab can be with wide, it would however also be possible to employ not wide section, such as tooth form section, to increase
Plus the squish area with concrete, improve anchoring property.
Brief description of the drawings
Fig. 1 is the plan view of the high-performance pre-buried steel anchor slab of the embodiment of the present invention 1；
Fig. 2 is the B-B sectional views of Fig. 1；
Fig. 3 is the A-A sectional views of Fig. 1；
Fig. 4 is the making schematic diagram of the dentation T-shaped plate of the embodiment of the present invention 1；
Fig. 5 is the side view of the high-performance pre-buried steel anchor slab of the embodiment of the present invention 2；
Fig. 6 is the making schematic diagram of the dentation T-shaped plate of the embodiment of the present invention 3；
Fig. 7 is the making schematic diagram of the dentation T-shaped plate of the embodiment of the present invention 4；
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and detailed description.
Embodiment 1
As shown in figures 1-4：A kind of high-performance pre-buried steel anchor slab, including dentation T-shaped plate 1 and dowel 2, dentation T-shaped plate 1
Web is wide teeth shape, and the gap between two teeth can pass through the width of stirrup, monodentate tooth to be less than stirrup clear spacing, the anchor
Muscle 2 is welded on the side wing edge of web two of dentation T-shaped plate 1；The dentation T-shaped plate 1 stitches 3 dislocation cuttings by using rectangle cutting
The web of i shaped steel is formed, it is ensured that the teeth web 1-1 and edge of a wing 1-2 of dentation T-shaped plate 1 form one, it is to avoid welding, dentation
The lower anchor slab 1-1-1 of end vertical welding of the teeth web 1-1 of T-shaped plate 1.
Embodiment 2
As shown in Figure 5：The present embodiment is identical with the remainder of embodiment 1, and difference is the end of teeth web 1-1
The L-shaped anchor head 1-1-2 of bent.
Embodiment 3
As shown in Figure 6：The present embodiment is identical with the remainder of embodiment 1, and difference is the dentation T-shaped plate 1
1-1 is not wide for teeth web, and cutting seam 3 is ladder track, using section form wide at the top and narrow at the bottom.
Embodiment 4
As shown in Figure 7：The present embodiment is identical with the remainder of embodiment 1, and difference is the dentation T-shaped plate 1
The line of cut 3 of teeth web 1-1 cuts for broken line.
It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention,
Some improvements and modifications can also be made, these improvements and modifications also should be regarded as protection scope of the present invention.In the present embodiment not
Clear and definite each part can use prior art to be realized.
Claims (7)
1. a kind of high-performance pre-buried steel anchor slab, it is characterised in that：Including dentation T-shaped plate (1) and dowel (2), the dentation T-shaped plate
(1) it is made up of teeth web (1-1) and the edge of a wing (1-2), teeth web (1-1) is vertically positioned on the median surface of the edge of a wing (1-2)；Institute
State dentation T-shaped plate (1) to be formed by the web of the cutting i shaped steel that misplaces so that the teeth web (1-1) of dentation T-shaped plate (1)
One is formed with the edge of a wing (1-2)；Gap between two described teeth webs (1-1) can pass through stirrup, teeth web (1-1)
Width is less than beams of concrete column tie-bar clear spacing；The end portion width of the teeth web (1-1) of the T-shaped plate (1) is not less than and the wing
The root width of edge (1-2) connection；The dowel (2) is welded on the side wing edge of teeth web (1-1) two of dentation T-shaped plate (1).
2. high-performance pre-buried steel anchor slab according to claim 1, it is characterised in that：The teeth web of the T-shaped plate (1)
It is straight line that (1-1) forms two sides long by the cutting that misplaces.
3. high-performance pre-buried steel anchor slab according to claim 1, it is characterised in that：The teeth web of the T-shaped plate (1)
(1-1's) cuts into two broken lines side long by dislocation, forms pawl shape.
4. high-performance pre-buried steel anchor slab according to claim 1, it is characterised in that：The teeth web of the T-shaped plate (1)
The lower anchor slab (1-1-1) of end vertical welding of (1-1).
5. high-performance pre-buried steel anchor slab according to claim 1, it is characterised in that：The teeth web of the T-shaped plate (1)
The end of (1-1) is carried out not less than the 90 degree of L-shaped anchor head of bents (1-1-2).
6. high-performance pre-buried steel anchor slab according to claim 4, it is characterised in that：The area of the lower anchor slab (1-1-1)
No less than 5 times of teeth web (1-1) sectional area.
7. high-performance pre-buried steel anchor slab according to claim 5, it is characterised in that：L-shaped anchor slab (1-1-2) end is curved
Folding area is no less than 4 times of teeth web (1-1) sectional area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710056157.XA CN106869409B (en) | 2017-01-25 | 2017-01-25 | High-performance pre-buried steel anchor slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710056157.XA CN106869409B (en) | 2017-01-25 | 2017-01-25 | High-performance pre-buried steel anchor slab |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106869409A true CN106869409A (en) | 2017-06-20 |
| CN106869409B CN106869409B (en) | 2018-12-28 |
Family
ID=59158276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710056157.XA Active CN106869409B (en) | 2017-01-25 | 2017-01-25 | High-performance pre-buried steel anchor slab |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3332651A1 (en) * | 1983-09-09 | 1985-03-28 | Gleit- Und Lagertechnik Nell Gmbh, 5620 Velbert | Shear reinforcing element |
| RU2194129C2 (en) * | 2000-09-06 | 2002-12-10 | Силаев Сергей Борисович | Unit if joint between vertical building member and horizontal cast-in-situ reinforced-concrete member |
| JP2009102909A (en) * | 2007-10-24 | 2009-05-14 | Tokyo Gas Co Ltd | Embedded hardware and method of mounting the same |
| CN102587495A (en) * | 2012-02-09 | 2012-07-18 | 北京建筑工程学院 | Steel beam and concrete wall semi-rigid full-bolted-connection joint |
| CN204456452U (en) * | 2015-01-13 | 2015-07-08 | 沈阳建筑大学 | A kind of buckling restrained brace and concrete frame beam connecting node |
| CN205171687U (en) * | 2015-11-11 | 2016-04-20 | 宁彦美 | Novel built -in fitting |
-
2017
- 2017-01-25 CN CN201710056157.XA patent/CN106869409B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3332651A1 (en) * | 1983-09-09 | 1985-03-28 | Gleit- Und Lagertechnik Nell Gmbh, 5620 Velbert | Shear reinforcing element |
| RU2194129C2 (en) * | 2000-09-06 | 2002-12-10 | Силаев Сергей Борисович | Unit if joint between vertical building member and horizontal cast-in-situ reinforced-concrete member |
| JP2009102909A (en) * | 2007-10-24 | 2009-05-14 | Tokyo Gas Co Ltd | Embedded hardware and method of mounting the same |
| CN102587495A (en) * | 2012-02-09 | 2012-07-18 | 北京建筑工程学院 | Steel beam and concrete wall semi-rigid full-bolted-connection joint |
| CN204456452U (en) * | 2015-01-13 | 2015-07-08 | 沈阳建筑大学 | A kind of buckling restrained brace and concrete frame beam connecting node |
| CN205171687U (en) * | 2015-11-11 | 2016-04-20 | 宁彦美 | Novel built -in fitting |
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| Publication number | Publication date |
|---|---|
| CN106869409B (en) | 2018-12-28 |
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Address after: 210093 Nanjing University Science Park, 22 Hankou Road, Gulou District, Nanjing City, Jiangsu Province Applicant after: Southeast University Address before: 211189 No. 2 Southeast University Road, Jiangning District, Nanjing, Jiangsu Applicant before: Southeast University |
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