CN211689906U - Bridge deck structure for laying ballastless tracks on steel bridge deck - Google Patents
Bridge deck structure for laying ballastless tracks on steel bridge deck Download PDFInfo
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- CN211689906U CN211689906U CN202020154652.1U CN202020154652U CN211689906U CN 211689906 U CN211689906 U CN 211689906U CN 202020154652 U CN202020154652 U CN 202020154652U CN 211689906 U CN211689906 U CN 211689906U
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Abstract
The utility model provides a bridge deck structure for laying ballastless tracks on a steel bridge deck, which belongs to the technical field of railway bridges and comprises a bridge deck plate, a base plate and a track plate which are arranged from bottom to top in sequence; a plurality of shear assemblies are arranged on the upper surface of the bridge deck at intervals; a steel bar framework used for being connected with the shear assembly is arranged inside the base plate; an accommodating groove for accommodating the steel bar framework is formed in the shear assembly; the upper surface of bed plate is equipped with the spacing groove, and the lower surface of track board is equipped with and carries out the spacing stopper of level with spacing groove phase-match, to the track board. The utility model provides a bridge deck structure for laying ballastless tracks on a steel bridge deck, when laying the ballastless tracks, a steel reinforcement framework inside a bed plate is placed into a holding tank arranged inside a shear nail arranged on the upper surface of a bridge deck plate; the upper surface of bed plate sets up the spacing groove, and the lower surface of track board is equipped with spacing groove assorted stopper, and track board, bed plate and decking all keep fixed, have improved the stability of bridge floor.
Description
Technical Field
The utility model belongs to the technical field of the railway bridge roof beam, more specifically say, relate to a bridge deck structure of laying ballastless track on steel bridge face.
Background
With the acceleration of the pace of high-speed railway construction, steel structure bridge forms are adopted in a large number. For large-span steel structure bridges, ballast track structures are mostly adopted, and ballastless tracks are only provided with a small number of laying examples on the steel truss bridges with small and medium spans.
The traditional method for laying the ballastless track on the steel structure bridge is to lay the ballastless track on a concrete bed plate, and the concrete bed plate is fixedly connected with the steel bridge deck through shear nails. In actual engineering, horizontal interaction force is generated between the concrete base plate and the steel bridge deck slab and between the ballastless track and the concrete base plate, the connection part of the concrete base plate and the shear nails is prone to being damaged due to stress for a long time, gaps are generated between the shear nails and the concrete, the eccentricity of the shear nails is increased, the fatigue damage of the shear nails is finally caused, the ballastless track and the concrete base are prone to being subjected to position deviation due to the long-time interaction force, and the structural stability of the bridge deck is influenced by the fatigue damage of the shear nails and the position deviation of the ballastless track.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a bridge floor structure of laying ballastless track on steel bridge face aims at solving the not enough technical problem of bridge floor structural stability who has the ballast track.
In order to achieve the above object, the utility model adopts the following technical scheme: the bridge deck structure for laying ballastless tracks on a steel bridge deck is provided, and comprises a bridge deck plate, a base plate and a track plate which are sequentially arranged from bottom to top; a plurality of shear assemblies are arranged on the upper surface of the bridge deck at intervals; a steel bar framework used for being connected with the shear assembly is arranged inside the base plate; an accommodating groove for accommodating the steel bar framework is formed in the shear assembly; the upper surface of bed plate is equipped with the spacing groove, the lower surface of track board be equipped with spacing groove phase-match, right the track board carries out horizontal spacing stopper.
As another embodiment of the present application, the steel bar framework includes a transverse steel bar and a longitudinal steel bar which are overlapped, and a joint of the transverse steel bar and the longitudinal steel bar is disposed in the accommodating groove and fixed by a binding wire; the lateral wall of holding tank is equipped with the confession horizontal reinforcing bar with the notch that vertical reinforcing bar passed.
As another embodiment of the present application, the shear assembly includes a base and a number of shear pins; the base is fixedly connected with the bridge deck; the plurality of shear nails are vertically arranged on the upper surface of the base; the surfaces of the transverse reinforcing steel bars and the longitudinal reinforcing steel bars are attached to the surfaces of the transverse reinforcing steel bars and the longitudinal reinforcing steel bars.
As another embodiment of the present application, the base includes a rectangular plate, and a lower surface is attached to an upper surface of the bridge deck; the shear nails are arranged at four corners of the rectangular plate.
As another embodiment of the application, the shear nails are angle irons, and two right-angle sides of the angle irons are respectively attached to the surfaces of the transverse steel bars and the surfaces of the longitudinal steel bars.
As another embodiment of the application, a plurality of layers are distributed on the upper portion and the lower portion of the steel reinforcement framework, and the steel reinforcement framework is connected with the shear assembly.
As another embodiment of the present application, the deck slab includes a base steel plate, a stainless steel composite plate, a rib plate, and a cross beam; the upper surface of the stainless steel composite plate is attached to the lower surface of the base steel plate; the rib plates are arranged on the lower surface of the stainless steel composite plate along the length direction of the bridge deck plate; the crossbeam follows the width direction of decking set up in stainless steel composite sheet's lower surface, and with the floor sets up in the cross.
As another embodiment of the present application, the rib plate includes a U-shaped longitudinal rib and a plate rib, the U-shaped longitudinal rib being disposed directly below the base plate; the plate ribs are arranged on two sides of the base plate.
As another embodiment of the present application, the shear assembly is disposed directly above the rib.
As another embodiment of the present application, the cross member includes a main cross member and a sub cross member; the main cross beam is arranged at a longitudinal beam hanger rod of the bridge deck; the secondary cross beam is arranged between two adjacent main cross beams.
The utility model provides a pair of bridge deck structure of ballastless track is laid on steel bridge face's beneficial effect lies in: compared with the prior art, the bridge deck structure for laying the ballastless track on the steel bridge deck has the advantages that when the ballastless track is laid, the steel reinforcement framework inside the base plate is placed into the accommodating groove formed in the shear assembly arranged on the upper surface of the bridge deck plate, the steel reinforcement framework is fixedly connected with the shear assembly, when the base plate and the bridge deck plate generate interaction force, the steel reinforcement framework is embedded into the accommodating groove of the shear assembly and fixedly connected, and dislocation cannot occur between the base plate and the bridge deck plate; the upper surface of bed plate sets up the spacing groove, the lower surface of track board be equipped with spacing groove assorted stopper, when track board and bed plate produced the interact power, because in the stopper embedding spacing groove, can not take place the dislocation between track board and the bed plate. The track plate, the base plate and the bridge deck plate are fixed, and the stability of the bridge deck is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic cross-sectional structure diagram of a bridge deck structure for laying ballastless tracks on a steel bridge deck according to an embodiment of the present invention;
fig. 2 is a schematic view of a matching structure of a shear assembly and a steel reinforcement framework according to an embodiment of the present invention;
fig. 3 is a schematic view of a fitting structure of a shear assembly and a steel reinforcement cage according to another embodiment of the present invention;
fig. 4 is a schematic view of a fitting structure of a shear assembly and a steel reinforcement cage according to still another embodiment of the present invention;
in the figure: 1. a track plate; 2. a base plate; 3. a bridge deck; 31. a base steel plate; 32. a stainless steel composite board; 4. a shear assembly; 41. accommodating grooves; 42. a base; 43. shear nails; 5. a steel reinforcement cage; 51. transverse reinforcing steel bars; 52. longitudinal reinforcing steel bars; 6. a limiting block; 7. a rib plate; 71. a U-shaped longitudinal rib; 72. a plate rib; 8. a cross member.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and fig. 2 together, a bridge deck structure for laying ballastless tracks on a steel bridge deck according to the present invention will now be described. A bridge deck structure for laying ballastless tracks on a steel bridge deck comprises a bridge deck 3, a base plate 2 and a track plate 1 which are sequentially arranged from bottom to top; a plurality of shear assemblies 4 are arranged on the upper surface of the bridge deck 3 at intervals; the inside of bed plate 2 is equipped with the framework of steel reinforcement 5 that is used for being connected with shear force subassembly 4, presets framework of steel reinforcement 5 back reuse concrete placement and becomes bed plate 2, and the inside of shear force subassembly 4 is equipped with the holding tank 41 that is used for holding framework of steel reinforcement 5, and framework of steel reinforcement 5 imbeds in the holding tank 41 and is fixed with 41 joints of holding tank. The upper surface of bed plate 2 is equipped with the spacing groove, and the lower surface of track board 1 is equipped with spacing groove assorted stopper 6, and stopper 6 carries out the level spacing to track board 1 in the embedding spacing groove.
Compared with the prior art, the bridge deck structure for laying the ballastless track on the steel bridge deck has the advantages that when the ballastless track is laid, the steel reinforcement framework 5 inside the base plate 2 is placed into the accommodating groove 41 formed in the shear component 4 arranged on the upper surface of the bridge deck 3, the steel reinforcement framework 5 is fixedly connected with the shear component 4, when the base plate 2 and the bridge deck 3 generate mutual acting force, the steel reinforcement framework 5 is embedded into the accommodating groove 41 of the shear component 4 and fixedly connected, and dislocation cannot occur between the base plate 2 and the bridge deck 3; the upper surface of bed plate 2 sets up the spacing groove, and the lower surface of track board 1 is equipped with spacing groove assorted stopper 6, and when track board 1 produced the interact power with bed plate 2, because stopper 6 imbeds the spacing groove in, can not take place the dislocation between track board 1 and the bed plate 2. The track plate 1, the base plate 2 and the bridge deck plate 3 are all kept fixed, and the stability of the bridge deck is improved.
As the utility model provides a pair of lay a concrete implementation way of ballastless track's bridge floor structure on steel bridge face please refer to fig. 1 and fig. 2, steel framework 5 includes horizontal reinforcing bar 51 and longitudinal reinforcement 52, and horizontal reinforcing bar 51 and longitudinal reinforcement 52 cross arrangement, and the junction of horizontal reinforcing bar 51 and longitudinal reinforcement 52 forms the cross, binds horizontal reinforcing bar 51 and longitudinal reinforcement 52 with the tie-wire in the junction, connects steel framework 5 as overall structure. The side wall of the receiving groove 41 is provided with a notch for the transverse steel bar 51 and the longitudinal steel bar 52 to pass through, the joint of the transverse steel bar 51 and the longitudinal steel bar 52 is embedded in the receiving groove 41, and the transverse steel bar 51 and the longitudinal steel bar 52 respectively penetrate out of the notch.
In this embodiment, holding tank 41 is cross groove to holding tank 41's width is the same with transverse reinforcement 51 and longitudinal reinforcement 52's diameter, and transverse reinforcement 51 and longitudinal reinforcement 52 imbed in holding tank 41, and holding tank 41's inner wall is laminated with transverse reinforcement 51's lateral wall and longitudinal reinforcement 52's lateral wall respectively, and holding tank 41 is with framework of steel reinforcement 5 chucking promptly. When the foundation plate 2 is subjected to longitudinal horizontal acting force, the whole steel reinforcement framework 5 tends to move longitudinally, the transverse steel reinforcements 51 and the shear assembly 4 generate interaction force, and the shear assembly 4 limits the movement of the steel reinforcement framework 5; when the foundation plate 2 is subjected to a horizontal acting force, the whole steel reinforcement framework 5 tends to move transversely, the longitudinal steel reinforcements 52 and the shear assembly 4 generate an interaction force, and the shear assembly 4 limits the movement of the steel reinforcement framework 5. The steel reinforcement framework 5 and the shear assembly 4 interact, and concrete of the base plate 2 is not stressed and cannot be loosened.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 3, the shear assembly 4 includes a base 42 and a plurality of shear pins 43; the base 42 is welded and fixed with the bridge deck 3; the plurality of shear pins 43 are vertically arranged on the upper surface of the base 42; the surfaces of the shear nails 43 are attached to the surfaces of the transverse steel bars 51 or the longitudinal steel bars 52, that is, a plurality of shear nails 43 enclose an accommodating cavity, and the transverse steel bars 51 or the longitudinal steel bars 52 are sandwiched between two adjacent shear nails 43 to limit the movement of the steel bar framework 5.
As a specific implementation of the embodiment of the utility model discloses referring to fig. 3, base 42 sets up to the rectangular plate, and the bottom surface of rectangular plate and decking 3's upper surface laminating, the border of rectangular plate and decking 3 are through the mode welded fastening of full weld, and shear force nail 43 welded fastening is in the four corners of rectangular plate, and four shear force nails 43 are the rectangle and distribute, and four shear force nails 43 enclose into the crisscross chamber that holds, and framework of steel reinforcement 5 imbeds and holds in the chamber.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 3, the shear nail 43 is set as an angle bar, the transverse steel bar 51 and the longitudinal steel bar 52 are crossed, four corners of the joint are right angles, the right angle of the angle bar is just right angle to the transverse steel bar 51 and the longitudinal steel bar 52, two right angle sides of the angle bar are respectively attached to the surfaces of the transverse steel bar 51 and the longitudinal steel bar 52, and four angle bars clamp the joint of the transverse steel bar 51 and the longitudinal steel bar 52.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 4, the upper and lower layers of the steel reinforcement frame 5 are distributed two-layer, and the intersection of the upper layer of the steel reinforcement frame 5 coincides with the intersection of the lower layer of the steel reinforcement frame 5, and the intersection of the upper layer of the steel reinforcement frame 5 and the lower layer of the steel reinforcement frame 5 are embedded in the holding tank 41 of the shear assembly 4, and the shear assembly 4 fixes the two layers of the steel reinforcement frames 5 at the same time. The two layers of steel reinforcement frameworks 5 can strengthen the structural strength of the base plate 2 and can also strengthen the connection stability of the base plate 2 and the bridge deck plate 3.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, the bridge deck 3 is made of orthotropic plates, including a base steel plate 31, a stainless steel composite plate 32, a rib plate 7 and a beam 8; the base steel plate 31 is located the topmost layer, and the upper surface of base steel plate 31 sets up shear assembly 4, and stainless steel composite sheet 32 upper surface and base steel plate 31's lower surface laminating, stainless steel composite sheet 32's lower surface expose in the environment, have stronger anticorrosive ability. The rib plate 7 is arranged on the lower surface of the stainless steel composite plate 32 along the length direction of the bridge deck 3; the cross beam 8 is arranged on the lower surface of the stainless steel composite plate 32 along the width direction of the bridge deck 3, the cross beam 8 and the rib plate 7 are arranged in a crossed mode, and an opening at the crossed position of the cross beam 8 and the rib plate 7 is used for the rib plate 7 to penetrate through.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, the rib plate 7 includes a U-shaped longitudinal rib 71 and a plate rib 72, the U-shaped longitudinal rib 71 is arranged in the base plate 2, the transverse distance between the U-shaped longitudinal ribs 71 is 600mm, the distance between the bridge deck center and the plate is 700mm due to the arrangement of the drainage holes, the plate thickness of the U-shaped longitudinal rib 71 is 8mm, the top width is 300mm, and the height is 280 mm. The plate ribs 72 are arranged outside the range of the base plate 2, and the plate ribs 72 are 16mm thick and 200mm high.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, the beam 8 includes a main beam and a sub beam, the main beam and the sub beam are both inverted T-shaped cross sections, and the end beam is a box-shaped cross section. Set up the main beam in longeron jib davit department, set up twice crossbeam between per two main beams, there is interval 2700mm between each crossbeam in jib district, and no jib regional end crossbeam is apart from 3750mm with first time crossbeam centre, and the interval is 3000mm between other crossbeams 8 in no jib district. The end beam has an outer width of 1600mm and an inner height of 3000 mm; the height of a web plate of the main beam is 3000mm, and the width of a flange plate is 700 mm; the height of the web of the secondary beam is 2200m, and the width of the flange plate is 500 mm.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a bridge deck structure of ballastless track is laid on steel bridge face, includes decking, bed plate and the track board that sets gradually from bottom to top, its characterized in that:
a plurality of shear assemblies are arranged on the upper surface of the bridge deck at intervals;
a steel bar framework used for being connected with the shear assembly is arranged inside the base plate; an accommodating groove for accommodating the steel bar framework is formed in the shear assembly;
the upper surface of bed plate is equipped with the spacing groove, the lower surface of track board be equipped with spacing groove phase-match, right the track board carries out horizontal spacing stopper.
2. The bridge deck structure for laying ballastless tracks on a steel bridge deck according to claim 1, wherein the steel reinforcement framework comprises overlapped transverse steel bars and longitudinal steel bars, and joints of the transverse steel bars and the longitudinal steel bars are arranged in the accommodating grooves and fixed through binding wires; the lateral wall of holding tank is equipped with the confession horizontal reinforcing bar with the notch that vertical reinforcing bar passed.
3. A deck structure for ballastless track laying on a steel deck according to claim 2, wherein said shear assembly comprises:
the base is fixedly connected with the bridge deck;
the plurality of shear nails are vertically arranged on the upper surface of the base; the surfaces of the transverse reinforcing steel bars and the longitudinal reinforcing steel bars are attached to the surfaces of the transverse reinforcing steel bars and the longitudinal reinforcing steel bars.
4. A deck structure for laying ballastless tracks on a steel deck according to claim 3, wherein said base comprises a rectangular plate, the lower surface of which is fitted to the upper surface of said deck slab; the shear nails are arranged at four corners of the rectangular plate.
5. The bridge deck structure for laying ballastless tracks on a steel bridge deck according to claim 3, wherein said shear nails are angle irons, two right-angle sides of said angle irons are respectively attached to the surfaces of said transverse steel bars and the surfaces of said longitudinal steel bars.
6. The bridge deck structure for laying ballastless tracks on a steel bridge deck according to claim 1, wherein the reinforcement cage is distributed in a plurality of layers from top to bottom, and the plurality of layers of reinforcement cages are connected with the shear assembly.
7. Bridge deck structure for ballastless track laying on a steel bridge deck according to any one of claims 1 to 6, wherein said deck slab comprises:
a base steel plate;
the upper surface of the stainless steel composite plate is attached to the lower surface of the base steel plate;
the rib plate is arranged on the lower surface of the stainless steel composite plate along the length direction of the bridge deck plate;
the crossbeam, follow the width direction of decking set up in stainless steel composite sheet's lower surface, and with the floor sets up in the cross.
8. A deck structure for ballastless track laying on a steel deck according to claim 7, wherein said ribs comprise:
the U-shaped longitudinal ribs are arranged right below the base plate;
and the plate ribs are arranged on two sides of the base plate.
9. A deck structure for ballastless track laying on a steel deck according to claim 7, wherein said shear assembly is disposed directly above said rib plate.
10. A deck structure for ballastless track laying on a steel deck according to claim 7, wherein said cross-beam comprises:
the main cross beam is arranged at a longitudinal beam hanger rod of the bridge deck;
and the secondary cross beams are arranged between two adjacent main cross beams.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020154652.1U CN211689906U (en) | 2020-02-06 | 2020-02-06 | Bridge deck structure for laying ballastless tracks on steel bridge deck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020154652.1U CN211689906U (en) | 2020-02-06 | 2020-02-06 | Bridge deck structure for laying ballastless tracks on steel bridge deck |
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| Publication Number | Publication Date |
|---|---|
| CN211689906U true CN211689906U (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020154652.1U Active CN211689906U (en) | 2020-02-06 | 2020-02-06 | Bridge deck structure for laying ballastless tracks on steel bridge deck |
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| CN (1) | CN211689906U (en) |
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- 2020-02-06 CN CN202020154652.1U patent/CN211689906U/en active Active
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