CN218026928U - Plate end connecting structure for large-pipe-diameter passing rail of floating plate track bed - Google Patents
Plate end connecting structure for large-pipe-diameter passing rail of floating plate track bed Download PDFInfo
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- CN218026928U CN218026928U CN202222500390.1U CN202222500390U CN218026928U CN 218026928 U CN218026928 U CN 218026928U CN 202222500390 U CN202222500390 U CN 202222500390U CN 218026928 U CN218026928 U CN 218026928U
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Abstract
The utility model relates to a board end connection structure that is used for big pipe diameter of floating plate way bed to cross rail, include: the device comprises a main body structure (10), an arc-shaped base (20), a pre-buried sleeve (30), a connecting piece (40) and a filling layer (50); the main body structure (10) is in a concave shape as a whole, is provided with a bottom surface, a left side wall and a right side wall, and is provided with a plurality of through holes (11); the arc-shaped base is arranged on the bottom surface of the main body structure, the upper end surface of the arc-shaped base is arc-shaped and matched with the shape of the outer surface of the rail passing pipe (1); the embedded sleeves are arranged at the end parts of the two adjacent floating plates (2) and correspond to the through holes of the main body structure; the filling layer is arranged between two side walls of the main body structure and the end part of the floating plate, and is provided with an opening corresponding to the through hole of the main body structure; and the connecting piece penetrates through the through hole and the open hole and is connected with the embedded sleeve, so that the main body structure is fixedly connected with the two adjacent floating plates (2).
Description
Technical Field
The utility model relates to a rail engineering technical field, more specifically relate to a board end connection structure that is used for big pipe diameter of floating plate way bed to cross rail.
Background
The floating slab track bed becomes the first choice measure for vibration and noise reduction of the newly-built track traffic at present with the advantages of excellent vibration reduction performance, stable structure, almost no maintenance and the like. Especially when the urban core district is crossed, the damping mileage is long, usually the damping mileage spans at least one interval (including stations at both ends), and a large amount of track passing pipelines are arranged near each station. Pipelines with smaller pipe diameters generally pass through a underpass track foundation or are laid on the top of a tunnel, but pipelines with larger pipe diameters, such as fire fighting pipes, generally need to pass through rails from plate seams of floating plates.
The adjacent floating slabs are usually provided with 30-50mm slab gaps and connected through slab end connecting structures. The pipe diameter of a conventional fire fighting pipe applied to rail transit is larger than 100mm, and a 150-200mm plate seam needs to be reserved by adding structures such as an outer protective pipe, a hoop and the like. Therefore, a plate end connection structure is generally required for connection. The conventional plate end connecting structure of the floating plate is a uniform overhead type or built-in type shear hinge (plate) or a combination thereof. The built-in shear hinge has strong bearing capacity, but needs to be poured in the floating slab track bed in advance, is difficult to overhaul and replace, conflicts with the position of the over-rail pipeline, and cannot be normally installed. The overhead shear plate is arranged on the upper surface of the road bed, so that the capacity of bearing bending moment and transferring shear force is poor, the bearing capacity is further poor due to the increase of plate seams, and even the situations of connection bolt fracture and shear resistant core rod fracture occur, so that potential safety hazards are brought to traffic safety; and the protrusion leads to the unevenness of the ballast bed surface in the ballast bed surface, and is not favorable for the patrol personnel to walk.
That is, the following disadvantages exist in the prior art: (1) the pipeline cannot be normally overhauled and replaced. Because a part of the arc frame body is pre-buried in the ballast bed. (2) The left and right stressed parts (frame bodies) are not a whole, and the load transfer capacity is poor.
To sum up, the urgent need is to provide a board end connection structure that atress is reasonable, it is convenient to maintain that is applied to big pipe diameter through rail pipeline specially.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that exists among the prior art at least partially, the utility model aims to provide a board end connection structure that is used for the big pipe diameter of floating plate way bed to cross the rail, a serial communication port, include:
the device comprises a main body structure (10), an arc-shaped base (20), a pre-buried sleeve (30), a connecting piece (40) and a filling layer (50);
the main body structure (10) is concave, and is provided with a bottom surface, a left side wall and a right side wall, and a plurality of through holes (11) are formed on the left side wall and the right side wall;
the arc base (20) is arranged on the bottom surface of the main body structure (10), the upper end surface of the arc base is arc-shaped and matched with the shape of the outer surface of the rail passing pipe (1);
the embedded sleeves (30) are arranged at the end parts of the two adjacent floating plates (2) and correspond to the through holes (11) of the main body structure (10);
the filling layer (50) is arranged between two side walls of the main body structure (10) and the end part of the floating plate (2), and is provided with an opening corresponding to the through hole (11) of the main body structure (10);
and the connecting piece (40) penetrates through the through hole (11) and the open hole and is connected with the embedded sleeve (30), so that the main body structure (10) is fixedly connected with the two adjacent floating plates (2).
According to the utility model discloses an embodiment, wherein the board end connection structure that is used for the big pipe diameter of floating plate way bed to cross the rail still includes apron (60), sets up in the top of "concave" style of calligraphy major structure (10) to cover board seam (3) between double-phase adjacent floating plate (2).
According to the utility model discloses an embodiment, wherein the both sides wall top of major structure (10) is to the inside side bend extension, and the distance between two extension is greater than the diameter of crossing rail pipe (1), guarantees under the condition that does not demolish major structure, and the line of crossing the rail can normally be installed and removed.
According to an embodiment of the invention, wherein the connection (40) is a spike or a bolt.
According to an embodiment of the invention, wherein the through hole (11) is a circular hole or an elliptical hole.
According to the utility model discloses an embodiment, wherein filling layer and arc base are made by elastic material, are the elastic component.
According to an embodiment of the invention, wherein the bottom surface of the main body structure (10) is thickened or provided with reinforcing ribs to increase the bending strength.
According to the utility model discloses a board end connection structure (4) that is used for the big pipe diameter of floating plate way bed to cross the rail can realize a great deal of profitable technological effect:
the main body part of the plate end connecting structure can be detached and can be replaced in time when being damaged, and the advantage that other built-in shear hinges (plates) cannot meet the requirement is achieved.
The main structure with the bearing function is a whole, has stronger bearing capacity than a split structure, and is arranged on the neutral surface of the plate, so that the stress is more reasonable.
The upper surface of the main structure is reserved with an opening, so that the normal maintenance and replacement of the over-rail pipeline are possible. The upper cover plate is transparent, and the inspection personnel can conveniently check the working state of the over-rail pipeline.
The floating plate can be installed under any line condition, normal installation can be guaranteed even in a small-radius curve section, and the situation that installation cannot be achieved due to the fact that the plate gaps between two adjacent floating plates are different in size is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic top view of a plate end connection structure for a floating slab track bed large-diameter track according to an embodiment of the present invention, which is disposed on a track slab track bed;
FIG. 2 isbase:Sub>A cross-sectional view of the structure shown in FIG. 1 taken along line A-A;
FIG. 3 is a cross-sectional view of the structure shown in FIG. 1 taken along line B-B;
fig. 4 is a schematic front view of a main structure of a plate end connection structure for large-diameter passing rail of a floating plate track bed and an arc-shaped base according to an embodiment of the present invention; and
fig. 5 is a left perspective view of the main structure and the arc-shaped base of the plate end connecting structure for the large pipe diameter passing rail of the floating plate track bed according to the embodiment of the present invention.
Description of the reference numerals: 1-a rail-passing pipe; 2-floating plate; 3-plate sewing; 4-plate end connection structure; 10-a body structure; 11-a through hole; 20-an arc-shaped base; 30-embedding a sleeve; 40-a connector; 50-a filler layer; 60-cover plate
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, which are not intended to limit the scope of the invention.
Fig. 1 is a schematic top view of a plate end connection structure for a floating slab track bed large-diameter track according to an embodiment of the present invention, which is disposed on a track slab track bed; FIG. 2 isbase:Sub>A cross-sectional view of the structure shown in FIG. 1 taken along line A-A; FIG. 3 is a cross-sectional view of the structure shown in FIG. 1 taken along line B-B; fig. 4 is a schematic front view of a main structure of a plate end connection structure for large-diameter passing rail of a floating plate track bed and an arc-shaped base according to an embodiment of the present invention; fig. 5 is a left perspective view of the main structure and the arc-shaped base of the plate end connecting structure for the large pipe diameter passing rail of the floating plate track bed according to the embodiment of the present invention. Referring to fig. 1 and 3, the plate end connecting structure 4 of the present application may be disposed between the plate slits 3 of two adjacent floating plates 2, and both ends of the plate end connecting structure are respectively connected with the floating plates on both sides. A plurality of slab end connections 4 may be distributed across the width of the floating slab, for example, at least 4 sets (a, b, c, d) are shown, wherein two rails are arranged symmetrically with respect to the line centerline, inside 2 sets and outside 2 sets, and are distributed at the center of the slab in the thickness direction, i.e., the neutral plane (the slab end connections are arranged on the slab at the center plane to bear the best transverse shear and bending moments).
Referring to fig. 2,4 and 5, the plate end connection structure 4 of the embodiment may include a main body structure 10, an arc base 20, an embedded sleeve 30, a connection member 40, a filling layer 50, and a cover plate 60.
The main body structure 10 is in a concave shape as a whole. In addition, the top surface can extend inwards from the outermost edges of the structures on the two sides, and the width L1 formed by the extending surface is larger than the maximum diameter D of the over-rail pipe 1 (including the outer protecting pipe), so that the over-rail pipeline can be normally assembled and disassembled without disassembling the main structure. And the formation of the extension face is beneficial for the placement of the subsequent cover plate 60. The two sides of the main structure 10 are symmetrical structures, each side is provided with a plurality of through holes, generally 2-4 through holes, and the arrangement of the hole sites is to reliably connect the main structure and the floating plate and transfer load. The shape of the holes may be, for example, circular holes or elliptical holes, provided as required. For example, when the floating plate 2 is in a straight line, the 4 openings on the side of the main structure 10 and the filling layer 50 may be circular holes; when the floating slab 2 was located the curve circuit, 4 trompils on major structure side and the filling layer can be the elliptical aperture, and the trompil direction of homonymy is unanimous, and 2 are upper and lower directions, and 2 are left and right directions in addition. The distribution can ensure that the adjustment amount is in the direction vertical to the plate ends of the floating plate. To eliminate the gap between the oblong holes and the connectors 40, steel sleeves may be added to the oblong holes to strengthen the position-adjusted fastening of the connectors 40 (e.g., spikes, bolts).
The bottom surface of the main structure 1 may be formed of a thick steel plate or an external rib plate, and the bottom surface has sufficient bending strength.
An arc base 20 is arranged between the inner wall of the bottom of the main structure and the outer surface of the over-rail pipe 1, the bottom surface of the arc base is a plane and is matched with the inner wall of the bottom of the main structure, the top surface of the arc base is arc-shaped, and the outline of the arc base is the same as that of the over-rail pipe. The curved base 20 may be made of a material with high elasticity, such as polyurethane, rubber, etc., and functions to prevent the cross rail pipe from being affected by the plate end connection structure. Because the floating plate is always in a vibration state during working, the main body structure can synchronously vibrate along with the floating plate due to the rigid connection with the floating plate, and the cross rail pipe is static. The width d of the arc-shaped base is not more than the minimum distance L2 between two adjacent openings on the side surface of the main body structure, and an operation space is reserved for assembling and disassembling the spike. The thickness of the arc-shaped base at least needs to ensure that the arc-shaped base is not compressed when the floating plate (plate end connecting structure) is in a static state.
The embedded sleeve 30 may be disposed at an end of the floating slab, corresponding to the through hole 11 of the main structure, and the outer portion of the embedded sleeve is firmly fixed to the steel bar of the floating slab, and the inner portion of the embedded sleeve may have threads. An elastic filling layer 50 is provided between the side wall of the body structure 10 and the end of the floating plate 2, and the filling layer is shaped like the side of the body structure and is also perforated at the corresponding position. The filling layer 50 may be made of a layer of polyurethane, rubber material, for example. Connecting members 40, such as spikes or bolts, can be sequentially inserted through the side surfaces of the main body structure and the openings of the filling layer to be tightly fitted with the embedded sleeves, thereby fixedly connecting the main body structure 10 with the two adjacent floating plates 2.
The main body structure 10 may be covered with a transparent and visible cover plate 60 (which may be made of a high-strength and transparent material such as glass fiber reinforced plastic) for observing the operation state of the pipeline. The upper surface should be flushed with the floating plate surface, and normal passing of daily inspection personnel is guaranteed. The cover plate may be secured to the body structure by bolts or the like.
The floating slab needs to determine the position of the embedded sleeve 30 in advance before concrete pouring and is reliably fixed with the steel bars of the floating slab, so that displacement during concrete pouring is prevented, and smooth installation of a main body structure is ensured.
The installation sequence is as follows: when concrete is poured on the floating slab, the embedded sleeves are connected with the floating slab; after the maintenance of two adjacent floating plates is finished, mounting the filling layer and the main body structure, connecting the filling layer and the main body structure with the floating plates through connecting pieces (spikes), and sequentially finishing the mounting of the connecting structure at the end of the 4-set plate (the spikes are not screwed down); jacking the floating plate, floating the floating plate to a designed elevation, installing rail structures such as steel rails and the like, and screwing down the spikes according to a designed torque value; installing and fixing a rail passing pipeline; installing an arc-shaped base; and installing an upper transparent cover plate.
The technical solutions provided by the embodiments of the present invention are introduced in detail, and the principles and embodiments of the present invention are explained by using specific examples, and the explanations of the above embodiments are only applicable to help understanding the principles of the embodiments of the present invention; meanwhile, a person skilled in the art can change the embodiments and the application ranges according to the embodiments of the present invention, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (7)
1. A board end connection structure that is used for big pipe diameter of floating plate way bed to cross rail, its characterized in that includes: the device comprises a main body structure (10), an arc-shaped base (20), a pre-buried sleeve (30), a connecting piece (40) and a filling layer (50);
the main body structure (10) is concave, and is provided with a bottom surface, a left side wall and a right side wall, and a plurality of through holes (11) are formed on the left side wall and the right side wall;
the arc base (20) is arranged on the bottom surface of the main body structure (10), the upper end surface of the arc base is arc-shaped and matched with the shape of the outer surface of the rail passing pipe (1);
the embedded sleeves (30) are arranged at the end parts of the two adjacent floating plates (2) and correspond to the through holes (11) of the main body structure (10);
the filling layer (50) is arranged between two side walls of the main body structure (10) and the end part of the floating plate (2), and is provided with an opening corresponding to the through hole (11) of the main body structure (10);
and the connecting piece (40) penetrates through the through hole (11) and the open hole and is connected with the embedded sleeve (30), so that the main body structure (10) is fixedly connected with the two adjacent floating plates (2).
2. The plate end connection structure for large-pipe cross rails of floating plate track bed according to claim 1, characterized by further comprising a cover plate (60) arranged above the main body structure (10) in a shape of Chinese character 'ao' to cover the plate gap (3) between two adjacent floating plates (2).
3. The slab end connection structure for large-diameter overrails of floating slab track bed according to claim 1, wherein the top of the two side walls of the main structure (10) extends in an inward bending way, and the distance between the two extending parts is larger than the diameter D of the overrail pipe (1), so that the overrail pipe can be normally assembled and disassembled without dismantling the main structure.
4. The plate end connection for floating plate track bed large pipe diameter passage rail of claim 1, characterized in that the connecting piece (40) is a spike or bolt.
5. The plate end connection structure for large pipe diameter rails of floating plate track bed according to claim 1, characterized in that the through holes (11) are circular holes or elliptical holes.
6. The slab end connection structure for floating slab track bed large pipe diameter rails as claimed in claim 1, wherein said filling layer and said arc-shaped base are made of elastic material and are elastic members.
7. Plate end connection for floating plate track bed large pipe diameter rails, according to claim 1, characterized in that the bottom surface of the body structure (10) is thickened or provided with reinforcing ribs to increase the bending strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222500390.1U CN218026928U (en) | 2022-09-21 | 2022-09-21 | Plate end connecting structure for large-pipe-diameter passing rail of floating plate track bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222500390.1U CN218026928U (en) | 2022-09-21 | 2022-09-21 | Plate end connecting structure for large-pipe-diameter passing rail of floating plate track bed |
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| Publication Number | Publication Date |
|---|---|
| CN218026928U true CN218026928U (en) | 2022-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222500390.1U Active CN218026928U (en) | 2022-09-21 | 2022-09-21 | Plate end connecting structure for large-pipe-diameter passing rail of floating plate track bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218026928U (en) |
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- 2022-09-21 CN CN202222500390.1U patent/CN218026928U/en active Active
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