CN212152954U - Double-block type steel bar truss sleeper - Google Patents
Double-block type steel bar truss sleeper Download PDFInfo
- Publication number
- CN212152954U CN212152954U CN202020368266.2U CN202020368266U CN212152954U CN 212152954 U CN212152954 U CN 212152954U CN 202020368266 U CN202020368266 U CN 202020368266U CN 212152954 U CN212152954 U CN 212152954U
- Authority
- CN
- China
- Prior art keywords
- longitudinal main
- layer
- rib
- steel bar
- bar truss
- 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
Images
Landscapes
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The utility model discloses a double-block type steel bar truss sleeper, which comprises two pillow blocks and a steel bar truss connected between the two pillow blocks, wherein the cross section of the steel bar truss is rectangular, the longitudinal two ends of the upper-layer longitudinal main rib are respectively embedded and run through the inside of the pillow blocks, and the longitudinal two ends of the lower-layer longitudinal main rib are not intersected with the two pillow blocks; a vertical oblique web corrugated connecting rib is connected between the upper layer longitudinal main rib and the lower layer longitudinal main rib which are adjacent on the same side, the vertical oblique web corrugated connecting rib is provided with ten wave crests and eleven wave troughs, and four wave crests are positioned between two pillow blocks; four upper-layer transverse connecting ribs are connected between the two upper-layer longitudinal main ribs and are respectively arranged at four wave crests between the two pillow blocks; eleven lower-layer transverse connecting ribs are connected between the two lower-layer longitudinal main ribs and are respectively arranged at eleven wave troughs. The utility model is suitable for an integral ballast bed, it is low to have manufacturing process requirement, and the construction is high-efficient, and is economical and reasonable, and the atress is even, advantages such as safe and reliable.
Description
Technical Field
The utility model relates to a track traffic field especially relates to a two formula steel bar truss sleepers.
Background
Under the drive of the rapid development of high-speed railways in China, urban rail transit is in a rapid development forward rail in succession. Along with the continuous densification of urban population, the traffic jam problem is continuously aggravated, and urban traffic pressure can be effectively alleviated to intercity railway and subway, makes things convenient for people's daily trip. However, various problems still exist with the prior subway sleeper structures. The traditional short sleeper is difficult to ensure an accurate rail bottom slope in the construction process, so that a bad wheel-rail relation is caused, the abrasion rate of the steel rail is accelerated, the safety and the stability of a travelling crane are influenced, and the workload of line maintenance personnel is increased. Meanwhile, in the embedded ballastless track structure of the long sleeper of the urban track traffic, the long sleeper is a prefabricated structure, the track bed plate is a cast-in-place structure, the junction of the two kinds of new and old concrete can generate larger shrinkage stress, and a large amount of cracks are often generated around the sleeper under the coupling action of dynamic loads of trains. The long sleeper and the track bed plate are not combined completely due to new and old concrete, so that the integrity is reduced, other types of diseases are easy to occur to the line, and the maintenance workload is further increased.
The double-block type sleeper of the high-speed railway has the advantages of a short sleeper and a long sleeper at the same time, but the design load of the double-block type sleeper is larger due to the fact that the running speed of a high-speed rail is higher, so that the double-block type sleeper of the subway cannot completely follow the design standard of the high-speed railway, and otherwise, unnecessary waste is caused. Therefore, the development of the double-block sleeper which has better economical efficiency and reliability and is suitable for intercity railways and subways has very important engineering significance.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the double-block type steel bar truss sleeper can be suitable for the integral type ballast beds of intercity railways and subways, and has the advantages of low manufacturing process requirement, high construction efficiency, economy, reasonability, uniform stress, safety, reliability and the like.
In order to solve the technical problem, the utility model provides a double-block type steel bar truss sleeper, it includes two pillow blocks and the steel bar truss who connects between two pillow blocks, each inside of pillow block pre-buries respectively two spiral sleeves, the cross section of steel bar truss is the rectangle, the steel bar truss includes upper longitudinal main muscle, lower floor longitudinal main muscle, upper horizontal connecting muscle, lower floor horizontal connecting muscle and vertical oblique abdomen ripple connecting muscle; the upper-layer longitudinal main ribs and the lower-layer longitudinal main ribs are parallel to each other in pairs and are equal in length, the longitudinal two ends of the upper-layer longitudinal main ribs are embedded into and penetrate through the pillow blocks respectively, and the longitudinal two ends of the lower-layer longitudinal main ribs are not intersected with the two pillow blocks; the vertical inclined-web corrugated connecting rib is connected between the upper-layer longitudinal main rib and the lower-layer longitudinal main rib which are adjacent to each other on the same side, the vertical inclined-web corrugated connecting rib is in a simple wave shape, the vertical inclined-web corrugated connecting rib is provided with ten wave crests and eleven wave troughs, and four wave crests are located between the two pillow blocks; four upper-layer transverse connecting ribs are connected between two upper-layer longitudinal main ribs positioned between the two pillow blocks, and are respectively arranged at four wave crests of the vertical inclined-web corrugated connecting rib; eleven transverse connecting ribs of the lower layer are connected between the two longitudinal main ribs of the lower layer, and the eleven transverse connecting ribs of the lower layer are respectively arranged at eleven wave troughs of the vertical inclined-web corrugated connecting rib.
As the utility model discloses an optimal scheme, the connected mode between vertical main muscle in upper strata, the vertical main muscle of lower floor, upper strata transverse connection muscle, the transverse connection muscle of lower floor and the vertical oblique abdomen ripple splice bar is the welding.
As the utility model discloses a preferred scheme, the vertical main muscle of upper strata be diameter 10mm ~ 15mm, the diameter of the vertical main muscle of lower floor is 8mm ~ 14mm, the diameter of upper strata transverse connection muscle is 6mm ~ 10mm, the diameter of the transverse connection muscle of lower floor is 6mm ~ 10mm, the diameter of the oblique abdomen ripple splice muscle of vertical direction is 6mm ~ 10 mm.
As the utility model discloses an optimal scheme, two horizontal interval between the vertical main muscle of upper strata is 160mm ~ 240mm, two horizontal interval between the vertical main muscle of lower floor is 160mm ~ 240mm, and the homonymy is adjacent vertical interval between vertical main muscle of upper strata and the vertical main muscle of lower floor is 80mm ~ 120 mm.
As the preferred scheme of the utility model, the wavelength of vertical oblique abdomen ripple splice bar is 200mm ~ 240 mm.
As the utility model discloses a preferred scheme, the pillow is the concrete block, and used concrete intensity is C60, and its cross section is isosceles trapezoid, the length of pillow is 500mm ~ 650mm, and the top is wide for 200mm ~ 300mm, and end is wide 250mm ~ 350mm, highly is 100mm ~ 250 mm.
As a preferable aspect of the present invention, the upper surface of the pillow block is horizontal or inclined.
As the preferred scheme of the utility model, two the spiral sleeve pipe is the dislocation arrangement, spiral sleeve pipe's upper end with the upper surface of pillow flushes, spiral sleeve pipe's lower extreme is in the inside of pillow.
As the preferred scheme of the utility model, the edge chamfer of pillow is the radius angle, and the radius of radius angle is 20mm ~ 50 mm.
Implement the utility model provides a pair of two formula steel bar truss sleepers compares with prior art, and its beneficial effect lies in:
(1) the utility model discloses a steel bar truss imbeds the short rail sleeper piece under two rail of track traffic every track in the cast-in-place bed board for sleeper and bed board link into an integrated entity, have improved the wholeness of bed board on the one hand, have reduced sleeper and bed board handing-over area, thus has inhibited the emergence of shrinkage crack, on the other hand can be through the high-accuracy prefabrication of batch production, satisfy the requirement to the track base slope on the sleeper in the operation, effectively reach good wheel rail relation;
(2) the utility model can form a plurality of triangular supports in the vertical direction inside the steel bar truss by arranging the vertical inclined web corrugated connecting bars, thereby improving the load bearing and deformation control capacity of the truss structure and meeting the requirement of urban rail transit on the strength of the sleeper;
(3) because the both ends position of steel bar truss is not buried inside the pillow totally, if: the upper layer longitudinal main ribs penetrate through the sleeper blocks, and the lower layer longitudinal main ribs are not intersected with the sleeper blocks, so that the connecting surfaces of the sleepers and the track bed plate are connected by reinforcing steel bars, the connecting effect of the sleepers and the track bed plate is enhanced, and the problem that cracks are prone to occurring on the connecting surfaces of the sleepers and the track bed plate is effectively solved;
(4) because the cross section of the steel bar truss is rectangular, compared with the cross section of the steel bar truss which is isosceles trapezoid, the structure has better pressure resistance;
(5) the utility model also has the advantages of low manufacturing process requirement, high construction efficiency, economy, reasonability, even stress, safety, reliability and the like.
Drawings
Fig. 1 is a front view of a double-block steel bar truss sleeper provided by the present invention;
fig. 2 is a top view of a double-block steel bar truss sleeper provided by the present invention;
fig. 3 is a side view of a double-block steel bar truss sleeper provided by the present invention;
FIG. 4 is a top view of a steel bar truss;
in the figure, 1, a pillow block; 2. a spiral sleeve; 3. an upper layer of longitudinal main ribs; 4. a lower layer of longitudinal main ribs; 5. the upper layer is transversely connected with the ribs; 6. the lower layer is transversely connected with the ribs; 7. and the vertical oblique abdomen ripple connecting rib.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, which indicate the orientation or positional relationship, are used in the present invention as being based on the orientation or positional relationship shown in the drawings, and are used only for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be understood that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are used in a generic sense, e.g., fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 4, the utility model discloses a preferred embodiment, a two formula steel bar truss sleepers, it includes two pillow blocks 1 and connects the steel bar truss between two pillow blocks 1, every 1 inside pre-buried two screw sleeves 2 that have respectively of pillow block, steel bar truss's cross section is the rectangle, steel bar truss includes the vertical main muscle 3 of upper strata, the vertical main muscle 4 of lower floor, upper strata transverse connection muscle 5, the transverse connection muscle 6 of lower floor, vertical oblique abdomen ripple splice bar 7.
In specific implementation, every two of the upper-layer longitudinal main ribs 3 and the lower-layer longitudinal main ribs 4 are parallel and equal in length, the longitudinal two ends of the upper-layer longitudinal main ribs 3 are respectively embedded into and penetrate through the pillow blocks 1, and the longitudinal two ends of the lower-layer longitudinal main ribs 4 are not intersected with the two pillow blocks 1; the vertical inclined web corrugated connecting rib 7 is connected between the upper-layer longitudinal main rib 3 and the lower-layer longitudinal main rib 4 which are adjacent to each other on the same side, the vertical inclined web corrugated connecting rib 7 is in a simple wave shape, the vertical inclined web corrugated connecting rib 7 is provided with ten wave crests and eleven wave troughs, and four wave crests are located between the two pillow blocks 1; four upper-layer transverse connecting ribs 5 are connected between two upper-layer longitudinal main ribs 3 positioned between the two pillow blocks 1, and the four upper-layer transverse connecting ribs 5 are respectively arranged at four wave crests of the vertical inclined-web corrugated connecting rib 7; eleven lower-layer transverse connecting ribs 6 are connected between the two lower-layer longitudinal main ribs 4, and the eleven lower-layer transverse connecting ribs 6 are respectively arranged at eleven wave troughs of the vertical inclined-web corrugated connecting rib 7.
Preferably, the connection mode among the upper longitudinal main rib 3, the lower longitudinal main rib 4, the upper transverse connecting rib 5, the lower transverse connecting rib 6 and the vertical inclined web corrugated connecting rib 7 is a firm and safe welding mode. The welded integral steel bar truss structure can ensure that the bearing capacity and the deformation resistance of the structure are strong under the influence of external force in the manufacturing and construction of the sleeper.
Implement the utility model provides a pair of two formula steel bar truss sleepers, its key lies in: firstly, embedding short sleeper blocks 1 below two steel rails of each track of the rail transit into a cast-in-place track bed plate through a steel bar truss, so that sleepers and the track bed plate are connected into a whole, on one hand, the integrity of the track bed plate is improved, and the joint area of the sleepers and the track bed plate is reduced, so that shrinkage cracks are inhibited, on the other hand, the requirements on a track base slope on the sleepers in operation can be met through factory high-precision prefabrication, and a good wheel-track relationship is effectively achieved; secondly, through the arrangement of the vertical inclined-web corrugated connecting ribs 7, a plurality of triangular supports can be formed in the steel bar truss in the vertical direction, so that the load bearing capacity and deformation control capacity of the truss structure are improved, and the requirement of urban rail transit on the strength of the sleeper is met; thirdly, because the two ends of the steel bar truss are not completely embedded into the pillow block 1, if: the upper-layer longitudinal main ribs 3 penetrate through the sleeper block 1, and the lower-layer longitudinal main ribs 4 are not intersected with the sleeper block 1, so that the connecting surfaces of the sleeper and the track bed plate are connected by reinforcing steel bars, the connecting effect of the sleeper and the track bed plate is enhanced, and the problem that cracks are easy to appear on the connecting surfaces of the sleeper and the track bed plate is effectively solved; fourthly, as the cross section of the steel bar truss is rectangular, compared with the cross section of the steel bar truss which is isosceles trapezoid, the structure has better pressure resistance; fifthly, the method also has the advantages of low manufacturing process requirement, high construction efficiency, economy, reasonability, uniform stress, safety, reliability and the like.
In the following, to further ensure the load bearing and deformation resistance of the steel bar truss, the steel bar truss of this embodiment may be designed according to the following requirements:
the diameter of the upper-layer longitudinal main rib 3 is 10-15 mm, the diameter of the lower-layer longitudinal main rib 4 is 8-14 mm, the diameter of the upper-layer transverse connecting rib 5 is 6-10 mm, the diameter of the lower-layer transverse connecting rib 6 is 6-10 mm, and the diameter of the vertical oblique abdomen corrugated connecting rib 7 is 6-10 mm. The transverse distance between the two upper-layer longitudinal main ribs 3 is 160-240 mm, the transverse distance between the two lower-layer longitudinal main ribs 4 is 160-240 mm, and the vertical distance between the upper-layer longitudinal main rib 3 and the lower-layer longitudinal main rib 4 which are adjacent on the same side is 80-120 mm. The wave length of the vertical inclined-web corrugated connecting ribs 7 is 200 mm-240 mm, that is, the distance between two adjacent upper-layer transverse connecting ribs 5 is 200 mm-240 mm, and the distance between two adjacent lower-layer transverse connecting ribs 6 is 200 mm-240 mm. The pillow block 1 is a concrete block, the strength of the concrete is C60, the cross section of the concrete is an isosceles trapezoid, the length of the pillow block 1 is 500-650 mm, the top width is 200-300 mm, the bottom width is 250-350 mm, and the height is 100-250 mm.
Illustratively, the upper surface of the pillow block 1 is horizontal or inclined. If the fastener backing plate is not provided with the rail bottom slope, the inclination of the upper surface of the sleeper block 1 is the rail bottom slope, and if the fastener backing plate is provided with the rail bottom slope, the upper surface of the sleeper block 1 is a plane.
Illustratively, two spiral sleeves 2 are arranged in a staggered manner, the upper ends of the spiral sleeves 2 are flush with the upper surface of the pillow block 1, and the lower ends of the spiral sleeves 2 are arranged inside the pillow block 1.
Illustratively, the edge chamfer of pillow block 1 is the fillet, and the radius of fillet is 20mm ~ 50mm, sets up the drawing of patterns of the prefabricated sleeper of being convenient for as the purpose of fillet, can also reduce the stress concentration effect of sleeper and railway roadbed board junction effectively simultaneously.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (9)
1. A double-block type steel bar truss sleeper is characterized by comprising two sleeper blocks and a steel bar truss connected between the two sleeper blocks, wherein two spiral sleeves are pre-embedded in each sleeper block respectively, the cross section of the steel bar truss is rectangular, and the steel bar truss comprises an upper-layer longitudinal main rib, a lower-layer longitudinal main rib, an upper-layer transverse connecting rib, a lower-layer transverse connecting rib and a vertical inclined web corrugated connecting rib;
the upper-layer longitudinal main ribs and the lower-layer longitudinal main ribs are parallel to each other in pairs and are equal in length, the longitudinal two ends of the upper-layer longitudinal main ribs are embedded into and penetrate through the pillow blocks respectively, and the longitudinal two ends of the lower-layer longitudinal main ribs are not intersected with the two pillow blocks;
the vertical inclined-web corrugated connecting rib is connected between the upper-layer longitudinal main rib and the lower-layer longitudinal main rib which are adjacent to each other on the same side, the vertical inclined-web corrugated connecting rib is in a simple wave shape, the vertical inclined-web corrugated connecting rib is provided with ten wave crests and eleven wave troughs, and four wave crests are located between the two pillow blocks;
four upper-layer transverse connecting ribs are connected between two upper-layer longitudinal main ribs positioned between the two pillow blocks, and are respectively arranged at four wave crests of the vertical inclined-web corrugated connecting rib;
eleven transverse connecting ribs of the lower layer are connected between the two longitudinal main ribs of the lower layer, and the eleven transverse connecting ribs of the lower layer are respectively arranged at eleven wave troughs of the vertical inclined-web corrugated connecting rib.
2. The dual block steel bar truss tie as claimed in claim 1 wherein the upper longitudinal main tendon, the lower longitudinal main tendon, the upper cross tie tendon, the lower cross tie tendon and the vertical inclined web corrugated tie tendon are connected by welding.
3. The dual-block steel bar truss sleeper as claimed in claim 1, wherein the diameter of the upper longitudinal main rib is 10mm to 15mm, the diameter of the lower longitudinal main rib is 8mm to 14mm, the diameter of the upper transverse connecting rib is 6mm to 10mm, the diameter of the lower transverse connecting rib is 6mm to 10mm, and the diameter of the vertical inclined web corrugated connecting rib is 6mm to 10 mm.
4. The double-block steel bar truss sleeper as claimed in claim 1, wherein the transverse distance between two upper longitudinal main ribs is 160mm to 240mm, the transverse distance between two lower longitudinal main ribs is 160mm to 240mm, and the vertical distance between the upper longitudinal main rib and the lower longitudinal main rib adjacent to the same side is 80mm to 120 mm.
5. A dual block steel truss tie as claimed in claim 1 wherein the vertical inclined web corrugated tie bar has a wavelength of 200mm to 240 mm.
6. The double block steel bar truss sleeper as claimed in claim 1, wherein the pillow block is a concrete block having a strength of C60 and a cross section of isosceles trapezoid, the length of the pillow block is 500mm to 650mm, the top width is 200mm to 300mm, the bottom width is 250mm to 350mm, and the height is 100mm to 250 mm.
7. A dual block steel truss tie as claimed in claim 1 wherein the upper surface of said tie blocks is horizontal or inclined.
8. A dual block steel truss tie as claimed in claim 1 wherein the two said helical sleeves are offset with the upper ends of the helical sleeves flush with the upper surface of the pillow blocks and the lower ends of the helical sleeves within the pillow blocks.
9. The dual block steel bar truss tie as claimed in claim 1 wherein the edge chamfers of the tie blocks are rounded with a radius of 20mm to 50 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020368266.2U CN212152954U (en) | 2020-03-20 | 2020-03-20 | Double-block type steel bar truss sleeper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020368266.2U CN212152954U (en) | 2020-03-20 | 2020-03-20 | Double-block type steel bar truss sleeper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212152954U true CN212152954U (en) | 2020-12-15 |
Family
ID=73716077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020368266.2U Active CN212152954U (en) | 2020-03-20 | 2020-03-20 | Double-block type steel bar truss sleeper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212152954U (en) |
-
2020
- 2020-03-20 CN CN202020368266.2U patent/CN212152954U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BR112021011841A2 (en) | LOWERING TYPE CONNECTION REINFORCEMENT STRUCTURE BETWEEN A SLEEPER BLOCK AND A RAIL BED, AND CONSTRUCTION METHOD FOR THE LOWERING TYPE CONNECTION REINFORCEMENT STRUCTURE BETWEEN A SLEEPER BLOCK AND RAIL BED | |
| CN209798444U (en) | Truss sleeper type ballastless track for ultra-large-gradient toothed rail railway | |
| WO2017185917A1 (en) | Inter-segment limiting structure having clawed ends for track-bearing beam in single track section of low-set line of mid-to-low speed magnetic levitation transportation project | |
| CN212152954U (en) | Double-block type steel bar truss sleeper | |
| CN212152953U (en) | Novel steel bar truss sleeper | |
| WO2007032701A1 (en) | Reinforced concrete cross-tie | |
| AP2004003128A0 (en) | Rail sleeper and ballast-free track structure | |
| CN110055835A (en) | Subway is laid a railway track by-pass temporary transition device and construction method | |
| KR200390690Y1 (en) | An iron frame structure of a concrete ballast track | |
| CN114059399B (en) | Seamless rack track structure | |
| CN210341507U (en) | Temporary overhead device for ballastless track line of high-speed rail suitable for high-speed traveling | |
| CN103835190A (en) | Double-block concrete sleeper for installing auxiliary steel rails | |
| CN110029531B (en) | Temporary high-speed rail ballastless track line overhead device and method suitable for high-speed traveling | |
| CN113605154A (en) | Double-track-pitch railway concrete sleeper | |
| CN106702822B (en) | The ballastless track structure of sleeper side balanced transversal dynamic load | |
| CN218232968U (en) | Connecting rod type sleeper | |
| CN106544934B (en) | A kind of railway shunting hump line reinforced construction method | |
| RU2638877C1 (en) | Built-up reinforced concrete ballast blanket layer and holder for it | |
| CN216514886U (en) | Line reinforcing device for existing railway | |
| CN212128691U (en) | Steel buttress for replacing and temporarily supporting subway sleeper | |
| CN211498288U (en) | Double-block sleeper system for urban rail transit steel spring floating slab section | |
| CN210684338U (en) | Railway line sleeper transverse resistance reinforcing structure | |
| CN220413895U (en) | Double sleeper structure for rail joint | |
| CN210946302U (en) | Rigid short roadbed section double-block type ballastless track structure | |
| CN218666933U (en) | Seamless rack toothed rail long sleeper buried ballastless track |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |