CN110670425A - Plate end connecting device and rail structure - Google Patents
Plate end connecting device and rail structure Download PDFInfo
- Publication number
- CN110670425A CN110670425A CN201910915943.XA CN201910915943A CN110670425A CN 110670425 A CN110670425 A CN 110670425A CN 201910915943 A CN201910915943 A CN 201910915943A CN 110670425 A CN110670425 A CN 110670425A
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- Prior art keywords
- plate
- shear
- cast
- slab
- hole
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
- E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
Abstract
The invention relates to the technical field of rail transit, in particular to a slab end connecting device for connecting a cast-in-place slab and a precast slab and a rail structure comprising the slab end connecting device for connecting the cast-in-place slab and the precast slab. The prefabricated slab connecting structure comprises a first connecting assembly connected with the prefabricated slab and a second connecting assembly connected with the cast-in-place slab, wherein the first connecting assembly and the second connecting assembly are connected through a shear bar. The plate end connecting structure can realize reliable connection of two different plate types.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a slab end connecting device for connecting a cast-in-place slab and a precast slab and a rail structure comprising the slab end connecting device for connecting the cast-in-place slab and the precast slab.
Background
In recent years, rail transit in large and medium-sized cities is rapidly developed, and particularly, with the improvement of train running speed and the increase of train running density, environmental problems such as vibration, noise and the like brought to the surrounding environment are becoming serious. At present, in the vibration reduction and noise reduction means of urban rail transit, a steel spring floating plate is undoubtedly the most ideal vibration isolation measure, and particularly, the steel spring floating plate has good effects in schools, hospitals, residential areas and other places with high requirements on vibration isolation.
At present, there are two construction methods for steel spring floating slabs (hereinafter referred to as floating slabs), which are a cast-in-place method and a prefabrication method. The cast-in-place method is a traditional method, namely reinforcement cage binding and concrete pouring procedures are carried out on a construction site, but the method has the defects of complex procedures, poor maintenance conditions, long construction period and the like. The prefabrication method, namely prefabricating and forming in a factory and mechanically assembling on a construction site, not only improves the quality of the plate, but also shortens the site construction time, and is widely applied to various major cities in recent years. However, the prefabricated method also has a limiting factor, because once the prefabricated slab is formed, the appearance size cannot be adjusted, the adaptability to the tunnel is poor, and the geometric dimension of the slab cannot be flexibly adjusted like a cast-in-place slab. In some special areas such as fire control cross rail, waste water pump house, civil air defense door etc. the civil engineering specialty can be constructed in advance of the track specialty usually, therefore itself just has construction error, and the accumulative error that the prefabricated plate was laid often causes the prefabricated plate board to meet and does not coincide with the reservation position (can set up these special positions into the board and meet usually, be convenient for observe and adjust).
Disclosure of Invention
An object of the present invention is to solve at least one of the above problems and disadvantages in the prior art.
According to one aspect of the present invention, there is provided a slab end connecting apparatus for connecting a cast-in-place slab with a precast slab, comprising a first connecting member connected with the precast slab, and a second connecting member connected with the cast-in-place slab, the first and second connecting members being connected by a shear bar.
In some embodiments, the first connection assembly includes an inclined plate and a vertical plate connected to the inclined plate, the inclined plate and the vertical plate having a V-shaped structure, the inclined plate being connected to the prefabricated plate, the vertical plate having a first mounting hole formed therein, and a first shear cylinder into which the first end of the shear bar is inserted, the first shear cylinder being mounted at the first mounting hole and extending perpendicular to the vertical plate toward the inclined plate.
In some embodiments, the first connection assembly further comprises a rib plate connected to the inclined plate and the vertical plate, respectively.
In some embodiments, the second connection assembly includes a fixed plate disposed parallel to and spaced apart from the vertical plate, the fixed plate defining a second mounting hole, the second connection assembly further including a second shear cylinder into which a second end of the shear bar opposite the first end is inserted, the second shear cylinder being mounted in the second mounting hole and extending away from the vertical plate perpendicular to the fixed plate, the axes of the first and second shear cylinders being collinear, the second shear cylinder being cast with the cast-in-place plate.
In some embodiments, the second connection assembly further comprises a cover plate for closing an end of the second shear cylinder remote from the fixed plate.
In some embodiments, the second connection assembly further comprises at least one shear bar extending from the fixed plate and parallel to the axis of the first shear cylinder and cast in place with the cast in place plate.
In some embodiments, the first end of the shear rod is provided with a positioning hole, and the wall of the first shear cylinder is provided with a positioning through hole, so as to fix the first shear cylinder and the shear rod by positioning pins sequentially inserted into the positioning through hole and the positioning hole.
In some embodiments, the first end of the shear bar extends from an end of the first shear cylinder remote from the vertical plate and is provided with an indicator for indicating the position of the locating hole.
In some embodiments, the indicator is a blind hole, and a line connecting the blind hole and the positioning hole is parallel to the axial direction of the shear bar.
According to another aspect of the present disclosure there is provided a track structure comprising precast panels, and cast in place panels, and a panel end connection means as described above.
The slab end connecting device and the track structure for connecting the cast-in-place slab and the precast slab according to the various embodiments of the present invention adopt the first connecting assembly connected with the precast slab and the second connecting assembly connected with the cast-in-place slab, wherein the first connecting assembly and the second connecting assembly are connected by the shear bar, so that the slab end connecting structure can realize reliable connection of two different slab types.
Drawings
Fig. 1 is a schematic structural view illustrating a track structure according to an exemplary embodiment of the present invention.
Fig. 2 is a schematic cross-sectional view a-a of the track structure of fig. 1.
Fig. 3 is a schematic view showing a structure of a board end connection device according to an exemplary embodiment of the present invention.
Fig. 4 is a schematic sectional view showing a board end connection device of the board end connection device in fig. 3.
Fig. 5 is a schematic view showing a structure of a first connection member of the board end connection device in fig. 3.
FIG. 6 is a schematic bottom view of the first connection assembly of the board end connection device of FIG. 5
Fig. 7 is a schematic view showing a structure of a second connection assembly of the board end connection device in fig. 3.
Fig. 8 is a side view schematic diagram illustrating a second connection assembly of the board end connection device of fig. 7.
Detailed Description
While the present invention will be fully described with reference to the accompanying drawings, which contain preferred embodiments of the invention, it is to be understood that, prior to the description herein, one of ordinary skill in the art can modify the invention described herein while obtaining the technical effects of the invention. Therefore, it should be understood that the foregoing description is a broad disclosure of those skilled in the art, and is not intended to limit the exemplary embodiments of the invention described herein.
Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in schematic form in order to simplify the drawing.
According to the present general inventive concept, there is provided a slab end connecting apparatus for connecting a cast-in-place slab 300 with a prefabricated slab 200, which includes a first connecting member connected with the prefabricated slab 200, and a second connecting member connected with the cast-in-place slab 300, the first and second connecting members being connected by a shear bar.
Fig. 1 is a schematic structural view illustrating a track structure according to an exemplary embodiment of the present invention. Fig. 2 is a schematic cross-sectional view a-a of the track structure of fig. 1. Fig. 3 is a schematic view showing a structure of a board end connection device according to an exemplary embodiment of the present invention. Fig. 4 is a schematic sectional view showing a board end connection device of the board end connection device in fig. 3. Fig. 5 is a schematic view showing a structure of a first connection member of the board end connection device in fig. 3. Fig. 6 is a schematic top view illustrating a first connection assembly of the board end connection device of fig. 5. Fig. 7 is a schematic view showing a structure of a second connection assembly of the board end connection device in fig. 3. Fig. 8 is a side view schematic diagram illustrating a second connection assembly of the board end connection device of fig. 7.
In an exemplary embodiment, as shown in fig. 1 to 8, the slab end connecting apparatus 100 includes a first connecting member 10 connected to a precast slab 200, and a second connecting member 20 connected to a cast-in-place slab 300, wherein the first connecting member 10 and the second connecting member 20 are movably connected by a shear bar 30.
In an exemplary embodiment, as shown in fig. 3 to 6, the first connection assembly 10 includes an inclined plate 11 and a vertical plate 12 connected to the inclined plate 11, the inclined plate 11 and the vertical plate 12 forming a V-shaped structure. The inclined plate 11 is attached to the groove structure 201 of the prefabricated plate 200, at least one bolt hole 16 is formed in the inclined plate 11, a sleeve 202 is pre-embedded in the groove structure 201 of the corresponding prefabricated plate 200, and the first connecting assembly 10 is connected to the prefabricated plate 200 by, for example, high-strength bolts respectively inserted through the bolt hole 16 of the inclined plate 11 and the pre-embedded sleeve 202 of the prefabricated plate 200. A first mounting hole 13 is formed at the center of the vertical plate 12, and the first connection assembly 10 further includes a first shear cylinder 14 into which the first end of the shear bar 30 is inserted, the first shear cylinder 14 being mounted at the first mounting hole 13 and extending perpendicular to the vertical plate 12 toward the inclined plate 11.
In an exemplary embodiment, as shown in fig. 3 and 5, the first connection assembly 10 further includes a rib plate 15, and the rib plate 15 is connected to the inclined plate 11 and the vertical plate 12, respectively, for enhancing the connection reliability between the inclined plate 11 and the vertical plate 12 of the first connection assembly 10.
In an exemplary embodiment, as shown in fig. 3, 4, 7 and 8, the second connecting assembly 20 includes a fixing plate 21 disposed parallel to and spaced apart from the vertical plate 12, a second mounting hole 25 is formed at the center of the fixing plate 21, the second connecting assembly 20 further includes a second shear cylinder 22 for inserting a second end of the shear bar 30 opposite to the first end, the second shear cylinder 22 is mounted in the second mounting hole 25 and extends away from the vertical plate 12 perpendicular to the fixing plate 21, wherein the axes of the first shear cylinder 14 and the second shear cylinder 22 are collinear, so that two ends of the shear bar 30 are respectively inserted into the first shear cylinder 14 and the second shear cylinder 22, and the second shear cylinder 22 is further cast with the cast-in-situ plate 300, so as to connect the second shear cylinder 22 to the cast-in-situ plate 300.
In an exemplary embodiment, as shown in fig. 4 and 7, the second connecting assembly 20 further includes a cover plate 24, and the cover plate 24 is used for closing one end of the second shear cylinder 22 away from the fixing plate 21 to ensure that the cast-in-place plate 300 does not leak slurry when pouring concrete, so as to ensure that the shear rods 303 move smoothly in the shear sleeves 14.
In an exemplary embodiment, as shown in fig. 3, 4, 7 and 8, the second connecting assembly 20 further includes four shear bars 23, the four shear bars 23 are distributed at four corners of the fixing plate 21, each shear bar 23 extends from the fixing plate 21 and parallel to the axis of the first shear cylinder 14, and is connected with a steel bar poured into the cast-in-situ plate 300 to enhance the connection reliability of the second connecting assembly 20 and the cast-in-situ plate 300.
However, it should be noted that although four shear ribs 23 are shown in this embodiment, it should be understood by those skilled in the art that in some other embodiments of the present invention, one, two, three or more shear ribs 23 may be provided, and the distribution of the shear ribs 23 on the fixing plate 21 may also be in other manners.
In one exemplary embodiment, as shown in fig. 3, the first end of the shear bar 30 is provided with a locating hole, and the wall of the first shear cylinder 14 is provided with a locating through hole (not shown) to secure the first shear cylinder 14 and the shear bar 30 by a locating pin (e.g., cotter pin) 40 inserted into the locating through hole and the locating hole in sequence. It should be noted that the positioning hole in the shear bar 30 is preferably in the form of a through hole, so that the positioning pin 40 passes through the positioning through hole in the wall of the first shear cylinder 14, the positioning hole, and out of the other side of the first shear cylinder 14 in this order. It should be understood by those skilled in the art that in other embodiments of the present disclosure, the positioning hole may be a blind hole, as long as the shear bar 30 and the first shear cylinder 14 can be kept fixed.
In an exemplary embodiment, as shown in fig. 3, the first end of the shear bar 30 protrudes from the end of the first shear cylinder 14 remote from the vertical plate 12, and is provided with an indication mark 31, and the indication mark 31 is used for indicating the position of the positioning hole, so that the position of the shear bar 30 provided with the positioning hole is always upward, thereby easily installing the positioning pin 40.
In an exemplary embodiment, as shown in fig. 3, the indicator 31 is a blind hole, and a line connecting the blind hole and the positioning hole 32 is parallel to the axial direction of the shear bar 30.
According to another aspect of the present disclosure, there is also provided a track structure including a precast slab 200, and a cast-in-place slab 300, and a slab end connection device 100 as above. In addition, the track structure may also include other panel end connection means, for example in other embodiments of the present disclosure, the prefabricated panels 200 and the cast-in-place panels 300 are connected by 2 sets of over-positioned shear panels and 2 sets of panel end connection means 100 according to the present invention.
When the prefabricated slab is installed, the second connecting component 20 and the reinforcement cage of the cast-in-place slab 300 are bound into a whole, concrete is poured into a formwork, after maintenance is carried out until the designed strength is achieved, the prefabricated slab 200 is hoisted in place, the geometric positions of the two slabs are adjusted to ensure that the first shear cylinder 14 of the first connecting component 10 and the second shear cylinder 22 (the hole position for installing the shear rod 30) of the second connecting component 20 are aligned, the shear rod 30 is inserted to enable the positioning hole on the shear rod 30 to face upwards, the positioning pin 40 sequentially penetrates through the positioning through hole of the first shear cylinder 14 and the positioning hole of the shear rod 30 and then is reliably fixed, then the jacking process of the cast-in-place slab 300 and the prefabricated slab 200 is carried out, and the geometric positions of the.
The slab end connecting device and the track structure for connecting the cast-in-place slab and the precast slab according to the various embodiments of the present invention adopt the first connecting assembly connected with the precast slab and the second connecting assembly connected with the cast-in-place slab, wherein the first connecting assembly and the second connecting assembly are connected by the shear bar, so that the slab end connecting structure can realize reliable connection of two different slab types. The slab end connecting structure can flexibly adjust slab joints only by arranging the cast-in-place slabs at special sections such as fire-fighting cross rails, civil air defense doors and the like under the condition that the construction efficiency is improved by using the prefabricated slabs on the whole line, can realize reliable connection of the cast-in-place slabs and the prefabricated slabs, and also realizes reliable connection of two different slab types while shortening the construction period.
It will be appreciated by those skilled in the art that the embodiments described above are exemplary and can be modified by those skilled in the art, and that the structures described in the various embodiments can be freely combined without conflict in structure or principle.
Having described preferred embodiments of the present invention in detail, it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the scope and spirit of the appended claims, and the invention is not to be limited to the exemplary embodiments set forth herein.
Claims (10)
1. A slab end connecting device for connecting a cast-in-place slab and a precast slab is characterized by comprising a first connecting assembly connected with the precast slab and a second connecting assembly connected with the cast-in-place slab, wherein the first connecting assembly and the second connecting assembly are connected through a shear bar.
2. The board end connection device according to claim 1, wherein the first connection assembly includes an inclined plate and a vertical plate connected to the inclined plate, the inclined plate and the vertical plate having a V-shaped structure, the inclined plate being connected to the prefabricated plate, the vertical plate having a first mounting hole formed therein, the first connection assembly further including a first shear cylinder into which the first end of the shear bar is inserted, the first shear cylinder being mounted at the first mounting hole and extending perpendicular to the vertical plate toward the inclined plate.
3. The plate end connection according to claim 2, wherein the first connection assembly further comprises a rib plate connected to the inclined plate and the vertical plate, respectively.
4. The board end connection device of claim 2, wherein the second connection assembly includes a fixed plate disposed parallel to and spaced apart from the vertical plate, the fixed plate defining a second mounting hole, the second connection assembly further including a second shear cylinder into which a second end of the shear bar opposite the first end is inserted, the second shear cylinder being mounted in the second mounting hole and extending away from the vertical plate perpendicular to the fixed plate, the axes of the first and second shear cylinders being collinear, the second shear cylinder being cast with the cast-in-place plate.
5. The plate end connection device of claim 4, wherein the second connection assembly further comprises a cover plate for closing an end of the second shear cylinder remote from the fixed plate.
6. The plate end connection of claim 4, wherein the second connection assembly further comprises at least one shear bar extending from the fixing plate parallel to the axis of the first shear cylinder and cast in place with the cast in place plate.
7. The plate end connection device according to any one of claims 2 to 6, wherein the first end of the shear bar is provided with a positioning hole, and a wall of the first shear cylinder is provided with a positioning through hole, so as to fix the first shear cylinder and the shear bar by a positioning pin inserted into the positioning through hole and the positioning hole in sequence.
8. The plate end connection device of claim 7, wherein the first end of the shear bar extends from an end of the first shear cylinder remote from the vertical plate and is provided with an indicator for indicating the position of the locating hole.
9. The board end connection according to claim 8, wherein the indicator is a blind hole, and a line connecting the blind hole and the positioning hole is parallel to an axial direction of the shear bar.
10. A track structure comprising prefabricated panels, and cast-in-place panels, and a panel end connection means according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910915943.XA CN110670425A (en) | 2019-09-25 | 2019-09-25 | Plate end connecting device and rail structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910915943.XA CN110670425A (en) | 2019-09-25 | 2019-09-25 | Plate end connecting device and rail structure |
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| CN110670425A true CN110670425A (en) | 2020-01-10 |
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| CN201910915943.XA Pending CN110670425A (en) | 2019-09-25 | 2019-09-25 | Plate end connecting device and rail structure |
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| CN205223741U (en) * | 2015-11-21 | 2016-05-11 | 隔而固(青岛)振动控制有限公司 | Strenghthened type shear hinge |
| CN206553830U (en) * | 2017-02-27 | 2017-10-13 | 江苏振华轨道交通设备有限公司 | A kind of floating plate overhead shear hinge structure |
| CN109024914A (en) * | 2018-07-31 | 2018-12-18 | 中国二十二冶集团有限公司 | Girder steel and the cast-in-place position connecting elements of precast shear wall and construction method |
| CN109183522A (en) * | 2018-10-12 | 2019-01-11 | 株洲时代新材料科技股份有限公司 | A kind of floating board connecting equipment of prefabricated and its construction method |
| CN109778595A (en) * | 2017-11-14 | 2019-05-21 | 北京九州一轨隔振技术有限公司 | A kind of shear hinge for floating plate |
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2019
- 2019-09-25 CN CN201910915943.XA patent/CN110670425A/en active Pending
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