CN205421003U - Precast concrete decking and girder steel shear connector - Google Patents
Precast concrete decking and girder steel shear connector Download PDFInfo
- Publication number
- CN205421003U CN205421003U CN201620108593.8U CN201620108593U CN205421003U CN 205421003 U CN205421003 U CN 205421003U CN 201620108593 U CN201620108593 U CN 201620108593U CN 205421003 U CN205421003 U CN 205421003U
- Authority
- CN
- China
- Prior art keywords
- girder steel
- sleeve
- precast concrete
- shear connector
- peg
- 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.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 48
- 239000010959 steel Substances 0.000 title claims abstract description 48
- 239000011178 precast concrete Substances 0.000 title claims abstract description 21
- 238000009408 flooring Methods 0.000 claims description 20
- 239000013536 elastomeric material Substances 0.000 claims description 4
- 239000004567 concrete Substances 0.000 abstract description 19
- 238000010276 construction Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a precast concrete decking and girder steel shear connector, including cant chisei and sleeve, the surface of cant chisei is provided with the sleeve, and the cant chisei root passes through screw thread and girder steel roof connection, the sleeve is frustum type structure, telescopic frustum type structure comprises the semi -circular frustum that two symmetry of each other set up, and it is fixed mutually that modes such as buckle or screw are passed through to two balanced semi -circular frustum structure of each other. Compare the cant chisei connecting piece, the utility model discloses the initial rigidity of joint construction is less, can effectively improve the stress of cant chisei, and under horizontal action of shear force, the stress of cant chisei is followed the direction of height and is tend to evenly distributed, avoids near cant chisei compressive region concrete to be crushed simultaneously, increases substantially the bearing capacity that shears of cant chisei connecting piece.
Description
Technical field
This utility model relates to a kind of bridge force transfer structure, particularly relates to a kind of precast concrete floorings and girder steel shear connector.
Background technology
Steel-mixed combined bridge is the version being formed by connecting by shear connector by girder steel and concrete slab.As the crucial force transfer structure of steel-mixed combined bridge, shear connector not only undertakes the horizontal shear between girder steel and concrete slab, limits the most slidably, resist simultaneously between the two start effect.The kind of shear connector is a lot, and wherein because having, isotropism, shear resistant capacity are high, anti-to be started the advantages such as ability is good, it is quick and convenient to construct, welding quality is easily guaranteed that and be widely adopted Welded-Stud Conectors.But, under horizontal shear effect, easily there is the deformation along load direction in Welded-Stud Conectors, and stress presents uneven distribution along the short transverse of peg, the concrete being positioned at peg compressive region is the most crushed so that the Joint failure between girder steel and concrete slab.
Because the defect that above-mentioned existing connecting structure exists, the design people, the most in addition research and innovation, to founding a kind of novel precast concrete floorings and girder steel shear connector so that it is have more practicality.
Utility model content
Main purpose of the present utility model is, overcomes the defect that existing connecting structure exists, and provides a kind of novel precast concrete floorings and girder steel shear connector, improves shear resistance, thus be more applicable for Practical Project, and have the value in industry.
The purpose of this utility model and solve it and technical problem is that and realize by the following technical solutions.According to the precast concrete floorings that the utility model proposes and girder steel shear connector, include peg and sleeve, the root of described peg is connected with girder steel top board by screw thread, the outer surface of described peg is provided with sleeve, described sleeve is frustum type structure, the frustum type structure of described sleeve is made up of the semicircle frustum of two mutually symmetrical with settings, and two mutually symmetrical with semicircle frustum structures are fastened to each other by the mode such as buckle or screw.
Aforesaid precast concrete floorings and girder steel shear connector, described girder steel cover top surface is provided with bolt hole.
Aforesaid precast concrete floorings and girder steel shear connector, the root of described peg is provided with screw thread, and described peg is connected with girder steel top board by screw thread；Described girder steel top board is provided with bolt hole, and the degree of depth of described bolt hole is less than the thickness of described girder steel top board, and the degree of depth of bolt hole is the 1/2～2/3 of girder steel top plate thickness.
Aforesaid precast concrete floorings and girder steel shear connector, the height of described peg is higher than the height of described sleeve.
Aforesaid precast concrete floorings and girder steel shear connector, described sleeve is the frustum type structure of rubber elastomeric material, and its elastic modelling quantity is the 1/5～1/10 of concrete material elastic modelling quantity.
Aforesaid precast concrete floorings and girder steel shear connector, be used for connecting girder steel and concrete slab.
By technique scheme, precast concrete floorings of the present utility model at least have the advantage that with girder steel shear connector
(1) for comparing Welded-Stud Conectors, this utility model connecting structure initial stiffness is less, it is possible to be effectively improved the stress of peg, under horizontal shear effect, peg stress tends to being uniformly distributed along short transverse, can increase substantially the shear-carrying capacity of Welded-Stud Conectors.
(2) peg root compressive region concrete can be prevented effectively from crushed, increase the service life.
(3) peg is threaded connection with girder steel top board, can eliminate the welding stress of the conventional fabrication method generations such as peg welds with girder steel.
(4) this connecting structure makes simple, and sleeve installs in factory in advance, and on-the-spot construction is identical with existing Welded-Stud Conectors, constructs convenient, the industrialization construction of appropriate criteria and industrialized production, beneficially bridge.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be practiced according to the content of description, below with preferred embodiment of the present utility model and coordinate accompanying drawing describe in detail as after.
Accompanying drawing explanation
Fig. 1 is the sectional view that girder steel is connected with concrete slab；
Fig. 2 is the axonometric chart of precast concrete floorings and girder steel shear connector；
Fig. 3 is the detail structure figure that peg is connected with girder steel top board；
Fig. 4 is this utility model peg stress envelope；
Fig. 5 is existing structure stress envelope；
Labelling connotation in figure: 1. base plate, 2. web, 3. girder steel top board, 4. concrete slab, 5. connecting structure, 31. bolts hole, 51. pegs, 52. sleeves, 511. screw threads.
Detailed description of the invention
By further illustrating the technological means and effect that this utility model taked by reaching predetermined utility model purpose, below in conjunction with accompanying drawing and preferred embodiment, detailed description of the invention of the present utility model is described in detail as after.
The precast concrete floorings that the utility model proposes are with girder steel shear connector axonometric chart as shown in Figure 2, sectional view during specifically used is as it is shown in figure 1, include base plate 1, web 2, girder steel top board 3, concrete slab 4, connecting structure 5, peg 51, sleeve 52, bolt hole 31 and screw thread 511 in application process.
Connecting structure 5 itself is made up of peg 51 and the sleeve 52 being set in peg 51 outer surface, for the ease of site operation, sleeve 52 has been prefabricated in the factory, sleeve 52 is frustum type structure, each sleeve 52 is made up of the semicircle frustum of two mutually symmetrical with settings respectively, between two semicircle frustums by buckle and or the mode such as screw interconnect fixing.Wherein the height of peg 51 is higher than the height of sleeve 52.The root of peg 51 is provided with screw thread 511, is connected by bolt hole 31 with girder steel top board 3.
In order to reach the purpose of dispersed concrete active force, sleeve 52 uses rubber elastomeric material to prepare, it is desirable to the elastic modelling quantity of the elastomeric material of use is the 1/5～1/10 of modulus of elasticity of concrete.
In concrete application process, peg 51 is fixed on girder steel top board 3, and peg 51 outer surface is arranged with sleeve 52, and it is internal that connecting structure 5 is arranged on concrete slab 4, is used for connecting girder steel and concrete slab 4.
Concrete operation method: the semicircular platforms structure of the most prefabricated girder steel 6, peg 51 and sleeve 52, and peg 51 is screwed (work of this part also can complete at the construction field (site)) with girder steel top board 3 by screw thread；Then, Prefabricated steel construction overall (including girder steel and peg 51) is transported to job site, and installs；Then the outer surface prefabricated sleeve 52 semicircular platforms structure being set in peg 51 two-by-two is fixed；Then assembling reinforcement, casting concrete floorings 4, complete construction.
Comparison diagram 4 and Fig. 5 this utility model structure can be seen that with the distribution of forces of traditional structure, this utility model structure can be by stress distribution at each several part of peg 51, it is more uniformly stressed, contrast traditional structure, root at peg 51 stress concentration is less likely to occur and causes damage, the shearing that various piece produces effectively is disperseed, advantageously the service life extending unitary construction.This utility model connecting structure initial stiffness is less, can be effectively improved the stress of peg, under horizontal shear effect, the stress of peg tends to being uniformly distributed along short transverse, avoid compressive region concrete near peg crushed simultaneously, increase substantially the shear-carrying capacity of Welded-Stud Conectors.
The above, it it is only preferred embodiment of the present utility model, not this utility model is made any pro forma restriction, although this utility model is disclosed above with preferred embodiment, but it is not limited to this utility model, any those skilled in the art, in the range of without departing from technical solutions of the utility model, when the technology contents of available the disclosure above makes a little change or is modified to the Equivalent embodiments of equivalent variations, in every case it is the content without departing from technical solutions of the utility model, any simple modification above example made according to technical spirit of the present utility model, equivalent variations and modification, all still fall within the range of technical solutions of the utility model.
Claims (6)
1. precast concrete floorings and girder steel shear connector, it is characterized in that: include peg (51) and sleeve (52), the root of described peg (51) is connected with girder steel top board (3) by screw thread, the outer surface of described peg (51) is provided with sleeve (52), described sleeve (52) is frustum type structure, and the frustum type structure of described sleeve (52) is made up of the semicircle frustum of two mutually symmetrical with settings.
Precast concrete floorings the most according to claim 1 and girder steel shear connector, it is characterised in that: described girder steel top board (3) upper surface is provided with bolt hole (31).
Precast concrete floorings the most according to claim 1 and 2 and girder steel shear connector, it is characterised in that: the root of described peg (51) is provided with screw thread.
Precast concrete floorings the most according to claim 2 and girder steel shear connector, it is characterised in that: the degree of depth of described bolt hole (31) is less than the thickness of described girder steel top board (3).
Precast concrete floorings the most according to claim 1 and girder steel shear connector, it is characterised in that: the height of described peg (51) is higher than the height of described sleeve (52).
6. according to the precast concrete floorings described in any one of claim 1,2,4 or 5 and girder steel shear connector, it is characterised in that: described sleeve (52) is elastomeric material frustum type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620108593.8U CN205421003U (en) | 2016-02-02 | 2016-02-02 | Precast concrete decking and girder steel shear connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620108593.8U CN205421003U (en) | 2016-02-02 | 2016-02-02 | Precast concrete decking and girder steel shear connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205421003U true CN205421003U (en) | 2016-08-03 |
Family
ID=56540813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620108593.8U Active CN205421003U (en) | 2016-02-02 | 2016-02-02 | Precast concrete decking and girder steel shear connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205421003U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366360A (en) * | 2017-07-31 | 2017-11-21 | 湖南大学 | A kind of compound shear connector of steel pipe ultra-high performance concrete |
| CN108625276A (en) * | 2018-07-24 | 2018-10-09 | 中铁七局集团第二工程有限公司 | A kind of assembled steel and concrete combination beam trestle and construction method |
| CN109972736A (en) * | 2019-05-07 | 2019-07-05 | 南京林业大学 | A kind of bamboo-the concrete combined structure and manufacturing method of adhesive type connection |
-
2016
- 2016-02-02 CN CN201620108593.8U patent/CN205421003U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366360A (en) * | 2017-07-31 | 2017-11-21 | 湖南大学 | A kind of compound shear connector of steel pipe ultra-high performance concrete |
| CN107366360B (en) * | 2017-07-31 | 2019-04-05 | 湖南大学 | A kind of compound shear connector of steel pipe-ultra-high performance concrete |
| CN108625276A (en) * | 2018-07-24 | 2018-10-09 | 中铁七局集团第二工程有限公司 | A kind of assembled steel and concrete combination beam trestle and construction method |
| CN109972736A (en) * | 2019-05-07 | 2019-07-05 | 南京林业大学 | A kind of bamboo-the concrete combined structure and manufacturing method of adhesive type connection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105672116B (en) | Prefabricated assembled steel reinforced concrete combines beam construction | |
| CN205024907U (en) | Vary joint construction of wide flange I -beam roof beam of prestressing force hollow floor and edge of a wing | |
| CN203603029U (en) | Shearing force connecting piece and composite beam with same | |
| CN205421003U (en) | Precast concrete decking and girder steel shear connector | |
| CN103590322A (en) | Shear force connecting part, combination beam comprising same and construction method of combination beam | |
| CN201411822Y (en) | Novel pre-tensioned steel-concrete composite beam | |
| CN105064511A (en) | Connecting structure of prestress hollow floor slab and H-shaped steel beam and construction method thereof | |
| CN110055893B (en) | Corrugated steel-rubber concrete combined bridge deck | |
| CN208455444U (en) | A kind of insert fenestration Lamb wave shape steel web combination beam connector | |
| CN111058543A (en) | Connecting structure and mounting method of concrete slab and steel beam | |
| CN104631318A (en) | Bridge deck slab transverse unequal-strength steel-concrete combined bridge deck system and construction method thereof | |
| CN204571092U (en) | Prefabricated composite girder segment syndeton and the compound beam containing syndeton | |
| CN205024843U (en) | Joint construction of prestressing force hollow floor and H shaped steel roof beam | |
| Abass | Effect of construction joints on performance of reinforced concrete beams | |
| CN204703055U (en) | Based on the steel-ultra-high performance concrete combined beam structure of fin-plate type bridge floor | |
| CN207419848U (en) | A kind of corrugated sheet steel-concrete combined box beam | |
| CN113417371B (en) | Detachable cushion block reinforced high-strength bolt shear connector | |
| Su et al. | Structural behaviour of perforated shear connectors with flange heads in composite girders: an experimental approach | |
| CN104695339B (en) | Wavelike steel webplate is used to carry out the construction method of concrete box girder Shear Strengthening | |
| CN212223608U (en) | Corrugated channel steel-concrete combined bridge deck | |
| CN204530474U (en) | Be applied to the combined bridge deck in Large Span Bridges and Urban Bridge | |
| CN209907580U (en) | Bamboo-concrete composite structure that gluing formula is connected | |
| CN208844443U (en) | A kind of box beam ruggedized construction based on arch | |
| CN207974555U (en) | A kind of building structure strengthening device | |
| Abbas et al. | The Effect of Adding Shear Connectors to the Composite Slabs with Different Geometry of Profile Steel Sheet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |