CN110409288A - The shear connector and construction method of unidirectional slip - Google Patents
The shear connector and construction method of unidirectional slip Download PDFInfo
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- CN110409288A CN110409288A CN201910593666.5A CN201910593666A CN110409288A CN 110409288 A CN110409288 A CN 110409288A CN 201910593666 A CN201910593666 A CN 201910593666A CN 110409288 A CN110409288 A CN 110409288A
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- 238000010276 construction Methods 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 155
- 239000010959 steel Substances 0.000 claims abstract description 155
- 239000000463 material Substances 0.000 claims abstract description 54
- 238000003466 welding Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 16
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 238000005266 casting Methods 0.000 claims description 4
- 239000006260 foam Substances 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 14
- 230000009466 transformation Effects 0.000 abstract description 10
- 238000000926 separation method Methods 0.000 abstract description 5
- 230000009471 action Effects 0.000 description 16
- 150000001875 compounds Chemical class 0.000 description 13
- 238000007665 sagging Methods 0.000 description 13
- 230000008901 benefit Effects 0.000 description 9
- 239000002131 composite material Substances 0.000 description 8
- 210000001364 upper extremity Anatomy 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000005336 cracking Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 210000001015 abdomen Anatomy 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
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- 238000012916 structural analysis Methods 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses the shear connectors and construction method of a kind of unidirectional slip, wherein, the shear connector includes: the horizontal wing plate of T-steel, the vertical web of T-steel and low elastic modulus material, for connecting girder steel and concrete slab, wherein, one end of the vertical web of T-steel and the horizontal wing plate vertical welding of the T-steel, the horizontal wing plate of T-steel stays in the girder steel anchor in the concrete slab, the other end and the girder steel of the vertical web of T-steel weld, and fill low elastic modulus material between the vertical web of the T-steel and the girder steel.The shear connector can be by unidirectionally sliding the constraint between release concrete slab and girder steel, it avoids concrete slab and girder steel cooperative transformation and generates biggish tensile stress, improve the durability of structure, and there is uplift effect, it can prevent the separation of concrete slab and girder steel, connecting piece structure is simple, and materials are convenient, lower cost for material.
Description
Technical field
The present invention relates to technical field of structural engineering, in particular to a kind of the shear connector and construction party of unidirectional slip
Method.
Background technique
If Fig. 1 is traditional steel-concrete combined structure bridge, mainly it is made of girder steel and concrete slab, the two is usual
It is connected by shear connector.The effect of shear connector mainly includes two parts, and first, it transmits between girder steel and concrete slab
Shearing, relative deformation of both limitations between contact interface, thus guarantee girder steel and concrete in interface cooperative transformation, altogether
With work, the compound action of storeroom, the rigidity and bearing capacity of lift structure component are played；Second, pass through shear connector
Wing plate by girder steel upper limb, live by the anchor in concrete slab, prevents the separation between girder steel upper limb and concrete, and it is horizontal to resist concrete slab
To by it is curved when generate start power, guarantee that two kinds of materials work together.
Fig. 2 is the internal force diagram of traditional steel-concrete combined structure bridge, under common load work, bridge pad
It is nearby typically subjected to biggish hogging moment effect, and biggish sagging moment effect is then born in span centre part.For sagging moment area
Combination beam, after traditional shear connector, concrete and girder steel can form compound action so that concrete slab be in by
Pressure condition, and girder steel is mostly in pressured state, meets the loading characteristic of concrete and the big material of steel two, can sufficiently send out
The mechanical property of two class materials is waved, therefore, for the combination beam in sagging moment area, by shear connector, guarantees steel
The co-operation of beam and concrete, is advantageous structure and composite bridge is maximum compared to other forms bridge
Advantage.
However, in the hogging moment area near support, group cooperation that girder steel and concrete slab are formed by shear connector
With for structure, be instead it is extremely disadvantageous, this is also that composite bridge design one of is the biggest problem, that is, is born curved
Due to passing through shear connector and girder steel cooperative transformation occurs for the concrete slab in square area, and concrete slab is caused to be in tension state,
This material this for concrete be it is extremely disadvantageous, under long-term action of pulling stress concrete slab cracking will lead to it is serious
Endurance issues.This is undesirable in engineering.In traditional design, often apply centainly pre- in hogging moment area
Stress, to resist the cracking of concrete slab, but the concrete slab due to hogging moment and girder steel are in complete combination state, answer in advance
Power also has very big a part as the transmitting of shear connector is imported into girder steel during importing concrete slab,
Prestressed importing degree is reduced, so, it generally requires to configure many prestressing tendons just and can guarantee that concrete slab can have
Certain compression deposit, to resist cracking.But prestressed construction increases construction cost, and difficulty of construction is also increased and applied
The work duration.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, an object of the present invention is to provide a kind of shear connectors of unidirectional slip.
It is another object of the present invention to a kind of construction methods for the shear connector for proposing unidirectional slip.
In order to achieve the above objectives, one aspect of the present invention proposes the shear connector of unidirectional slip, comprising: T-steel water
The vertical web of flat wing plate, T-steel and low elastic modulus material, for connecting girder steel and concrete slab, wherein the vertical abdomen of T-steel
The girder steel anchor is stayed in the coagulation by one end of plate and the horizontal wing plate vertical welding of the T-steel, the horizontal wing plate of T-steel
In native plate, the other end and the girder steel of the vertical web of T-steel are welded, and in the vertical web of the T-steel and the steel
Low elastic modulus material is filled between beam.
The shear connector of the unidirectional slip of the embodiment of the present invention is discharged between girder steel and concrete slab by one direction
Constraint so that girder steel and concrete slab under sagging moment effect can cooperative transformation, work together, give full play to composite structure
Advantage, but hogging moment effect under when, the constraint between girder steel and concrete can be released by the sliding of shear connector
It puts, so that concrete slab will not be deformed with the deformation of girder steel, that is, is not at tension state, avoids the generation in crack.
On the other hand, when needing to import certain prestressing force, since girder steel and concrete slab are complete in the constraint of prestressing force importing direction
Full release, concrete slab prestressed importing direction be can unidirectional slip through the embodiment of the present invention Shear connection
What part slided, whole prestressing force can be imported into concrete slab completely, with greatly increasing concrete slab pre- to answer
Power importing degree, reduces the project amount of pre-stress construction.
In addition, the shear connector of unidirectional slip according to the above embodiment of the present invention can also have it is following additional
Technical characteristic:
Further, in one embodiment of the invention, the vertical web of the T-steel and the horizontal wing plate of the T-steel
It is vertically connected using welding manner.
Further, in one embodiment of the invention, the girder steel includes top flange plate, web and bottom plate, described
Concrete slab includes reinforcing bar and concrete.
Further, in one embodiment of the invention, the top flange plate of the girder steel and the vertical web of the T-steel
Welding.
Further, in one embodiment of the invention, the horizontal wing plate of the T-steel is by the top flange plate of the girder steel
Anchor stays in the concrete slab.
Optionally, in one embodiment of the invention, the low elastic modulus material is the material of regular-type foam or sponge etc
Material.
Further, in one embodiment of the invention, only unilateral to fill the low elastic modulus material, and pass through organic gel
Water bonds the low elastic modulus material and the vertical web of the T-steel.
In order to achieve the above objectives, another aspect of the present invention proposes a kind of construction party of the shear connector of unidirectional slip
Method, the implementation method is the following steps are included: the vertical web of vertical welding T-steel and the horizontal wing plate of T-steel；T-steel is vertical
Web is welded on the top flange plate of girder steel；Low elastic modulus material is clogged in the vertical web of the T-steel and the top flange plate
Between gap in, and only clog side, filling lateral root is determined according to design；It is bound after the girder steel is transported to construction site mixed
Concrete board reinforcing bar, casting concrete.
The construction method of the shear connector of the unidirectional slip of the embodiment of the present invention discharges girder steel by one direction and mixes
Constraint between concrete board so that girder steel and concrete slab under sagging moment effect can cooperative transformation, work together, sufficiently send out
The advantage of composite structure is waved, but when under hogging moment acts on, the constraint between girder steel and concrete can pass through Shear connection
The sliding of part discharges, so that concrete slab will not be deformed with the deformation of girder steel, that is, is not at tension state, avoids and split
The generation of seam.On the other hand, when needing to import certain prestressing force, since girder steel and concrete slab are in prestressing force importing direction
Constraint discharge completely, concrete slab is in prestressed importing direction can unidirectional slip through the embodiment of the present invention
What shear connector slided, whole prestressing force can be imported into concrete slab completely, greatly increase concrete
Plate ground prestressing force importing degree, reduces the project amount of pre-stress construction.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, in which:
Fig. 1 is steel-concrete combined structure bridge common form；
Fig. 2 is the common internal force diagram of steel-concrete combined structure bridge；
Fig. 3 is the shear connector structure schematic diagram of the unidirectional slip of one embodiment of the invention；
Fig. 4 is the layout drawing of the shear connector of the unidirectional slip of the present invention in composite beam bridge；
Fig. 5 is the shear connector implementation method flow figure of the unidirectional slip of one embodiment of the invention.
Description of symbols: shear connector, the horizontal wing plate of 1-T fashioned iron, the vertical abdomen of 2-T fashioned iron of the unidirectional slip of 100-
Plate, 3- low elastic modulus material, 4- girder steel, 41- top flange plate, 42- web, 43- bottom plate, 5- concrete slab, 51- reinforcing bar and 52- are mixed
Solidifying soil.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Shear connector and the embodiment party of the unidirectional slip proposed according to embodiments of the present invention are described with reference to the accompanying drawings
Method describes the shear connector of the unidirectional slip proposed according to embodiments of the present invention with reference to the accompanying drawings first.
Fig. 3 is the shear connector structure schematic diagram of the unidirectional slip of one embodiment of the invention.
As shown in figure 3, the shear connector 100 of the unidirectional slip includes: the horizontal wing plate 1 of T-steel, the vertical abdomen of T-steel
Plate 2 and low elastic modulus material 3.
The shear connector of unidirectional slip is for connecting girder steel 4 and concrete slab 5, wherein the vertical web 2 of T-steel
One end and horizontal 1 vertical welding of wing plate of T-steel, the horizontal wing plate 1 of T-steel stay in 4 anchor of girder steel in concrete slab 5, and T-steel is vertical
The other end and girder steel 4 of web 2 weld, and low elastic modulus material 3 is filled between the vertical web 2 of T-steel and girder steel 4.
It should be noted that the size of the vertical web 2 of T-steel and the horizontal wing plate 1 of T-steel is all in accordance with structural stress analysis meter
It calculates and determines, and vertically connected using welding manner.
Further, in one embodiment of the invention, girder steel 4 includes top flange plate 41, web 42 and bottom plate 43, is mixed
Concrete board 5 includes reinforcing bar 51 and concrete 52.
Specifically, the top flange plate 41 of girder steel 4 and the vertical web 2 of T-steel weld, and the horizontal wing plate 1 of T-steel is by girder steel 4
Top flange plate anchor stays in concrete slab 5.
Optionally, in one embodiment of the invention, low elastic modulus material 3 can be the material of regular-type foam or sponge etc
Material, thickness should be determined according to calculating, and the low elastic modulus material 3 is generally bonded by organic glue with the vertical web 2 of T-steel,
Prevent the displacement of padding in work progress.
Further, in one embodiment of the invention, the embodiment of the present invention is only unilateral fills low elastic modulus material, and leads to
Organic glue is crossed to bond low elastic modulus material 3 and the vertical web 2 of T-steel.
That is, low elastic modulus material 3 is packed between the vertical web 2 of T-steel and the horizontal wing plate 1 of T-steel, only in list
Side filling.
Specifically, as shown in figure 4, being cut for the unidirectional slip of the present invention in typical steel-concrete combined structure bridge
The arrangement schematic diagram of power connector, firstly, the internal force diagram (Fig. 2) according to bridge structure under typical condition, available combination
The positive hogging moment subregion of beam bridge.
Secondly, using moment maximum point as line of demarcation, being arranged symmetrically novel unidirectional slip shearing in sagging moment subregion
Connector, the glide direction of connector is backwards to moment maximum point, towards the lesser side of moment.Make in this way, just curved
Under the action of square, can not be slid between the girder steel and concrete in sagging moment area, by shear connector constraint and cooperate with
Deformation forms compound action, promotes the rigidity and bearing capacity of sagging moment area component.
In hogging moment subregion, using moment maximum point as line of demarcation, it is arranged symmetrically novel unidirectional slip Shear connection
Part, the glide direction of connector is backwards to moment maximum point, towards the lesser side of moment.Make in this way, makees in hogging moment
It under, can sufficiently be slid between the girder steel and concrete slab of hogging moment area, the deformation of girder steel upper limb will not cause top
The cooperative transformation of concrete slab, to release compound action, concrete slab be not involved in hogging moment area structure by curved, tensile stress
It greatly reduces, prevents the cracking of itself, improve the durability of structure.
As shown in figure 3, the shear connector for doing the unidirectional slip of inventive embodiments has been determined according to Fig. 4, in the structure
Position and glide direction after, can be in factory process novel connector, and girder steel upper limb is welded on before appearance.
In the process of the shear connector of unidirectional slip, connector wing plate is welded on web first, so
Connector web and girder steel upper limb are welded afterwards, the width of connector wing plate should be according to Concrete Bridge Structures plate transverse direction drawing
The size of power determines that the height and width of web should be true according to the design method of shear connector in combined bridge according to calculating
It is fixed.
After girder steel upper limb processes connector, according to the glide direction that Fig. 4 is determined, low-carbon mould is clogged in different subregions
Material, low elastic modulus material can usually be cut into rectangular block in advance, and thickness can slide according to required for release compound action
Amount is determined by structural analysis.Low elastic modulus material should be arranged in glide direction side, meanwhile, in order to prevent in transport and prefabrication process
In, the displacement and loss of low elastic modulus material can fill organic glue in the side that low elastic modulus material is contacted with web, guarantee two
Effective bonding is formed between person.
Unidirectional slip shear connector after processing is completed, girder steel is transported to scene, the reinforcing bar of floorings is bound,
It has poured concrete and has combined the construction for completing composite bridge.
It is understood that the shear connector of unidirectional slip is suitable for all types of steel-concrete combined structure bridges
Interface between, especially between the interface of the hogging moment area of steel-concrete combined structure bridge.
To sum up, the shear connector of the embodiment of the present invention is mainly made of T-steel and low-elasticity-modulus padding, wherein T-steel
It is welded by two pieces of mutually perpendicular steel plates (wing plate and web), is connected with the T-type in conventional steel-concrete combined structure bridge
Fitting is similar.Low-elasticity-modulus padding can be foam or sponge material, will after the web of T-steel is welded on girder steel upper limb
Low elastic modulus material is filled between the web and wing plate of T-steel side, prevents the contact of concrete with T-steel web, to make
After obtaining concreting, in the side for having filler, relative to girder steel Relative sliding can occur for concrete, thus two kinds of release
Interstructural compound action, but in the side of non-filler, with girder steel Relative sliding cannot occur for concrete again, to be formed
Interstructural compound action.At the same time, the anchor for passing through T-steel horizontal flange in the side of non-filler, girder steel and concrete
Gu the separation between concrete and girder steel can be prevented in the vertical direction.
In addition, the compound action of the release steel-concrete combined structure of the property of can choose of the embodiment of the present invention, commensurate structure
Work characteristics under different force modes.For example, near the span centre support of steel-concrete combined structure Continuous Bridge, In
It is self-possessed and under the vehicular load of support two sides, combination beam bears hogging moment effect at support, it can be by the region cloth
Shear connector of the invention is set, by the compound action at the sliding release support of connector, so that concrete is not with girder steel
It deforms, to prevent concrete slab from cracking, improves the durability of structure；Span centre support is nearby in certain vehicular loads simultaneously
Deployment scenarios under (such as from the farther away end bay of support), at support combination beam bear sagging moment effect, at this point, due to the region
The shear connector of the invention of arrangement is unidirectional slip, and acting on lower girder steel and concrete slab in sagging moment can become together
Shape forms compound action, increases the rigidity of structure, give full play to the mechanical property of composite bridge.
Therefore, the embodiment of the present invention has the advantages that compared with the existing technology
(1) novel connector of the invention is used in composite beam bridge, may be implemented to guarantee girder steel when sagging moment acts on
Cooperative transformation between concrete forms compound action, gives full play to the advantage of material, the rigidity and carrying of lift structure
Power, meanwhile, hogging moment effect when, can guarantee that the constraint between girder steel and concrete is released, prevent concrete slab because
Cooperative transformation and generate biggish tensile stress；
(2) when hogging moment area applies prestressing force, due to being released in the connector of prestressed importing direction through the invention
The constraint between concrete slab and girder steel has been put, so that prestressed importing degree greatly increases, has reduced the work of pre-stress construction
Cheng Liang；
(3) shear connector of the unidirectional slip of the embodiment of the present invention is easy for construction, and materials are simple, compared to traditional
T-type plate shear connector, it is only necessary to certain thickness low elastic modulus material, technique letter are additionally clogged between web and wing plate
Single, speed of application is fast.
The shear connector of the unidirectional slip proposed according to embodiments of the present invention, can with and can only occur unidirectionally to slide,
When it is for when connecting girder steel and concrete slab, it is ensured that concrete slab and girder steel do not occur relatively under the action of sagging moment
Sliding cooperates, and forms compound action, gives full play to the advantage of material, the rigidity and bearing capacity of lift structure, still, In
Under hogging moment effect, which can avoid concrete by unidirectionally sliding the constraint between release concrete slab and girder steel
Plate and girder steel cooperative transformation and generate biggish tensile stress, improve the durability of structure.Meanwhile the connector equally has resistance to plucking
Effect, can prevent the separation of concrete slab and girder steel, and connecting piece structure is simple, and materials are convenient, lower cost for material.
Referring next to the shear connector implementation method for the unidirectional slip that attached drawing description proposes according to embodiments of the present invention.
Fig. 5 is the shear connector implementation method flow figure of the unidirectional slip of one embodiment of the invention.
As shown in figure 5, the shear connector implementation method of the unidirectional slip the following steps are included:
In step s101, the vertical web of vertical welding T-steel and the horizontal wing plate of T-steel.
In step s 102, the vertical web of T-steel is welded on the top flange plate of girder steel.
In step s 103, in the gap by low elastic modulus material filling between the vertical web of T-steel and top flange plate.
Wherein, low elastic modulus material only clogs side, and filling lateral root is determined according to design.
In step S104, concrete slab reinforcing bar, casting concrete are bound after girder steel is transported to construction site.
For example, the concrete construction method of the shear connector of the unidirectional slip of the embodiment of the present invention are as follows:
A. in factory by the wing plate of T-steel and web vertical welding；
B. on the top flange plate that the web lower edge of T-steel is welded on girder steel by factory；
C. low elastic modulus material is clogged inside T-steel web and the edge of a wing in factory, and only clogs side, clog lateral root evidence
Design determines；
D. concrete slab reinforcing bar is bound after girder steel being transported to scene；
E. casting concrete.
It should be noted that the explanation of the aforementioned shear connector embodiment to unidirectional slip is also applied for the list
To the construction method of the shear connector of slip, details are not described herein again.
The construction method of the shear connector of the unidirectional slip proposed according to embodiments of the present invention, can with and can only occur
Unidirectional sliding, when it is for when connecting girder steel and concrete slab, it is ensured that concrete slab and girder steel are under the action of sagging moment
Do not occur to slide relatively, cooperate, forms compound action, give full play to the advantage of material, the rigidity and carrying of lift structure
Power, still, hogging moment effect under, the connector can by unidirectionally slide release concrete slab and girder steel between constraint,
It avoids concrete slab and girder steel cooperative transformation and generates biggish tensile stress, improve the durability of structure.Meanwhile the connector is same
Sample has uplift effect, can prevent the separation of concrete slab and girder steel, and connecting piece structure is simple, and materials are convenient, material at
This is cheap.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (8)
1. a kind of shear connector of unidirectional slip, which is characterized in that the shear connector include: the horizontal wing plate of T-steel,
The vertical web of T-steel and low elastic modulus material, for connecting girder steel and concrete slab, wherein one end of the vertical web of T-steel
With the horizontal wing plate vertical welding of the T-steel, the horizontal wing plate of T-steel stays in the girder steel anchor in the concrete slab,
The other end and the girder steel of the vertical web of T-steel weld, and fill out between the vertical web of the T-steel and the girder steel
Fill low elastic modulus material.
2. shear connector according to claim 1, which is characterized in that the vertical web of T-steel and the T-steel water
Flat wing plate is vertically connected using welding manner.
3. shear connector according to claim 1, which is characterized in that the girder steel includes top flange plate, web and bottom
Plate, the concrete slab include reinforcing bar and concrete.
4. shear connector according to claim 3, which is characterized in that the top flange plate of the girder steel and the T-steel
Vertical web welding.
5. shear connector according to claim 4, which is characterized in that the horizontal wing plate of T-steel is by the girder steel
Top flange plate anchor stays in the concrete slab.
6. shear connector according to claim 1, which is characterized in that the low elastic modulus material is regular-type foam or sponge
Etc material.
7. shear connector according to claim 1, which is characterized in that it is only unilateral to fill the low elastic modulus material, and lead to
Organic glue is crossed to bond the low elastic modulus material and the vertical web of the T-steel.
8. a kind of construction method of the shear connector of unidirectional slip, which is characterized in that using any one of claim 1-7 institute
The shear connector for the unidirectional slip stated, wherein the implementation method the following steps are included:
The vertical web of vertical welding T-steel and the horizontal wing plate of T-steel；
The vertical web of T-steel is welded on the top flange plate of girder steel；
By low elastic modulus material filling in the gap between the vertical web of the T-steel and the top flange plate；
Concrete slab reinforcing bar, casting concrete are bound after the girder steel is transported to construction site.
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| CN201910593666.5A CN110409288A (en) | 2019-07-03 | 2019-07-03 | The shear connector and construction method of unidirectional slip |
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| CN201910593666.5A CN110409288A (en) | 2019-07-03 | 2019-07-03 | The shear connector and construction method of unidirectional slip |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110777668A (en) * | 2019-11-13 | 2020-02-11 | 中铁二院工程集团有限责任公司 | Incremental launching construction method for precast concrete bridge deck slab of steel-concrete composite beam |
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| CN110777848A (en) * | 2019-11-12 | 2020-02-11 | 广东省工程勘察院 | Movable support based on underground space development above subway and construction method thereof |
| CN110777668A (en) * | 2019-11-13 | 2020-02-11 | 中铁二院工程集团有限责任公司 | Incremental launching construction method for precast concrete bridge deck slab of steel-concrete composite beam |
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