CN211256632U - Sleeper plate type track structure with isolation cushion pad on steel truss girder - Google Patents

Abstract

The utility model provides a sleeper plate type track structure with an isolation cushion pad on a steel truss girder, which is arranged on the steel truss girder (1), comprises a sleeper plate (3) and an isolation cushion plate (2) arranged between the sleeper plate (3) and a main longitudinal beam of the steel truss girder (1); a plurality of welding limiting parts (12) are arranged on the steel truss girder (1), a sleeve (6) is arranged in front of the welding limiting parts (12) and a sleeper plate limiting hole (31), the sleeve (6) is directly and fixedly connected with the welding limiting parts (12) through T-shaped bolts (4), and the top of the sleeve (6) is pressed on the sleeper plate (3); the isolation buffer base plate (2) absorbs the energy of vibration of a part of the vehicle track system under the fixation of the sleeve (6) and the T-shaped bolt (4), so that the isolation buffer function between the sleeper plate (3) and the steel truss beam (1) is realized, and the stability and the safety of a track structure are ensured.

Description

Sleeper plate type track structure with isolation cushion pad on steel truss girder

Technical Field

The embodiment of the utility model belongs to the technical field of the railway track structure, more specifically, a steel longeron upper band keeps apart the board-like track structure of sleeper of blotter.

Background

The steel truss structure is a main structure type commonly adopted by modern railway bridges, has the outstanding advantages of simple structure, convenient construction, strong bearing capacity and the like, and is widely applied to construction of ordinary speed railways, high-speed railways and intercity railways. At present, common rail structures of railway steel trusses at home and abroad comprise a wooden sleeper open deck rail, a ballast rail, a synthetic resin sleeper rail and a sleeper plate type rail. In the traditional open-deck railway steel truss girder bridge, a bridge deck system adopts a longitudinal and transverse girder system, steel rails are connected with sleepers through fastener spikes, and the sleepers are connected with steel girders through bolts, so that the bridge has the advantage of smaller structural dead weight, but the buckling pressure of the wooden sleeper spikes is relatively smaller, so that the bridge is generally only suitable for railways with the speed of not higher than 120km/h, and wooden sleepers are easy to decay, wear and crack, so that the structural service life is shorter; there is the tiny fragments of stone, coal, etc. track, to high-speed railway steel purlin cable-stay bridge, often adopt concrete combination beam bridge floor or orthotropic slab steel bridge floor, set up reinforced concrete on the bridge floor and hold tiny fragments of stone, coal, etc. track, nevertheless because the bridge floor is covered by holding tiny fragments of stone, coal, etc. groove, the bridge floor system is difficult for inspection and maintenance. In addition, the self weight of the ballast track is large; the synthetic resin sleeper track adopts the resin synthetic sleeper with better corrosion resistance, weather resistance and fatigue resistance to replace a wooden sleeper, so that the problem of the service life of the wooden sleeper is better solved, but the synthetic resin sleeper has overhigh manufacturing cost and is not suitable for large-scale laying application.

Compared with the prior art, the sleeper plate type track can improve the stability and durability of the track structure, reduce the workload of maintenance and repair, reduce the upper building height of the track and the second-stage dead load of the bridge, and reduce the construction cost of the main bridge.

However, on the one hand, the existing track slab is isolated from the steel truss bridge deck by a concrete cushion, and as disclosed in patent ZL2018200516339, a slab ballastless track for a track-sleeving line on the steel truss bridge is provided. Steel truss girder upper plate formula ballastless track structure in the above-mentioned patent, keep apart through the concrete bed course between track board and the steel truss girder bridge floor, when the train load passes through, there is not better isolation buffer measure between track board and the steel truss girder, be unfavorable for the mutual adaptation that track board and steel truss girder warp, the steel truss girder vibration is great, there is the possibility of vibration fracture in the concrete bed course between track board and the steel truss girder, thereby to the security of train operation, the stationarity and the structural stability of steel truss girder bridge cause the influence.

On the other hand, in a common bridge, the bridge is of a full-support structure, and the compression of each layer of structure can be realized by the dead weight of the part above the steel truss buffer layer, but in a track with sleeper plates laid on the steel truss, high-strength bolts are needed to connect the track structure and the bridge together, so that in a plate-type track structure, the compression function is realized by the arrangement of the high-strength bolts, which is a great problem.

SUMMERY OF THE UTILITY MODEL

To the above defect or the improvement demand of prior art, the utility model provides a steel longeron upper band keeps apart the sleeper plate formula track structure of blotter adopts the energy of keeping apart the vibration of cushion plate absorption part vehicle track system, under sleeve pipe and T type bolt fastening, realizes keeping apart the function of buffering between sleeper plate and the steel longeron.

In order to achieve the purpose, the sleeper plate type track structure with the isolation cushion pads on the steel truss girder is arranged on the steel truss girder and comprises a sleeper plate and an isolation cushion pad plate arranged between the sleeper plate and the main longitudinal beam of the steel truss girder; and the number of the first and second electrodes,

the steel truss is provided with a plurality of welding limiting parts, sleeves are arranged in front of the welding limiting parts and the rail sleeper plate limiting holes, the sleeves and the welding limiting parts are directly and fixedly connected through T-shaped bolts, and the tops of the sleeves are pressed on the rail sleeper plate; the isolation buffer base plate is fixed by the sleeve and the T-shaped bolt, so that the function of isolation and buffering between the sleeper plate and the steel truss girder is realized.

Furthermore, the welding limiting parts correspond to the through holes of the isolation buffer base plate and the limiting holes of the sleeper plate respectively.

Further, the bushing includes a bushing cover, a bushing bolt hole, and a bushing locating boss.

Furthermore, a T-shaped bolt hole and a limiting clamping groove are arranged in the welding limiting part.

Further, the sleeve positioning boss is arranged at the bottom of the sleeve cover and matched with the limiting clamping groove.

Further, the sleeve bolt hole is matched with the T-shaped bolt.

Furthermore, a prefabricated external member is arranged between the sleeve and the rail pillow plate limiting hole.

Further, the top of the T-shaped bolt is sequentially provided with a high-strength washer, a nut and a cap from bottom to top.

Furthermore, the sleeper plate is also provided with an embedded sleeve for installing a steel rail and a fastener system.

Further, the transverse span of the isolation buffer base plate is the same as the transverse width of the main longitudinal beam of the steel truss girder; the longitudinal span of the isolation buffer base plate is consistent with the longitudinal length of the sleeper plate.

Generally, through the utility model discloses above technical scheme who conceives compares with prior art, can gain following beneficial effect:

(1) the sleeper plate type track structure with the isolation buffer cushion on the steel truss girder realizes better isolation buffer between the sleeper plate and the steel truss girder through the isolation buffer cushion plate arranged between the sleeper plate and the steel truss girder; under the limiting action of the sleeve and the T-shaped bolt, the isolation buffer base plate absorbs part of energy of vibration of the vehicle track system, the isolation buffer function between the sleeper slab and the steel truss beam is realized, and the stability and the safety of the track structure are ensured.

(2) The utility model discloses a steel longeron upper band keeps apart sleeper plate formula track structure of blotter adopts the mode that sets up the welding locating part on steel longeron, makes high strength bolt and welding locating part direct contact, has avoided high strength bolt and has kept apart blotter direct contact and cause high strength bolt to screw up the existing problem, and can guarantee to keep apart the elasticity of blotter, has further strengthened the stability of track and bridge structures.

(3) The utility model discloses a steel longeron upper band keeps apart sleeper plate formula track structure of blotter, the sleeper plate passes through the spacing hole of sleeper plate and the matching of welding locating part, can fix a position fast the position of sleeper plate. Meanwhile, the vertical position of the fixed sleeper plate can be provided, the structure of the traditional sleeper plate is simplified, and the strength of the sleeper plate is improved.

(4) The utility model discloses a steel longeron upper band keeps apart sleeper plate formula track structure of blotter still is equipped with prefabricated external member between the spacing hole of sleeve pipe and sleeper plate, and prefabricated external member is elastic construction for the gap that exists between the spacing hole of packing sleeve pipe and sleeper plate also compensates the defect that materials such as elastic resin can't be filled in the middle of the gap simultaneously, makes whole bridge structures have the effect of buffering on horizontal.

(5) The utility model discloses a board-like track structure of sleeper of blotter is kept apart in steel longeron upper band, welding locating part lug weld on steel longeron for track structure's installation and fixed. The scheme that the traditional sleeper plate type track structure punches on the steel truss girder is avoided, the flexibility of sleeper plate construction is improved, and the requirement of strength design of the steel truss girder bridge is reduced.

Drawings

Fig. 1 is an overall structural view of a sleeper slab track structure with an isolation buffer cushion on a steel truss girder according to an embodiment of the invention;

fig. 2 is a transverse cross-sectional view of a sleeper slab track structure with an isolation buffer cushion on a steel truss girder according to an embodiment of the invention;

fig. 3 is a front view of a sleeper slab track structure with an isolation buffer cushion on a steel truss girder according to an embodiment of the present invention;

fig. 4 is an exploded view of a sleeper slab track structure with an isolation buffer cushion on a steel truss girder according to an embodiment of the present invention;

fig. 5 is an exploded side view of a sleeper slab track structure with an isolation buffer cushion on a steel truss girder according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a steel truss according to an embodiment of the present invention;

fig. 7 is a perspective view of a sleeve according to an embodiment of the present invention;

fig. 8 is a top view of a sleeve according to an embodiment of the present invention;

fig. 9 is a schematic view of a T-bolt according to an embodiment of the present invention;

fig. 10 is a schematic view of an isolation cushion according to an embodiment of the present invention;

fig. 11 is a schematic structural view of a rail sleeper plate according to an embodiment of the present invention.

In all the figures, the same reference numerals denote the same features, in particular:

in the figure: 1-steel truss, 2-isolation buffer base plate, 3-sleeper plate, 4-T-shaped bolt, 5-prefabricated external member, 6-sleeve, 7-high-strength washer, 8-nut, 9-cap, 10-steel rail, 11-fastener system, 12-welding limiting part, 13-T-shaped bolt hole and 14-welding limiting part clamping groove; 31-sleeper plate limiting holes and 32-embedded sleeves; 41-T bolt bar; 61-sleeve cover, 62-sleeve bolt hole, 63-sleeve positioning boss.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

Combine fig. 1 ~ 5, the utility model discloses a what lay on the steel longeron has the sleeper board formula track structure who keeps apart the blotter, this sleeper board formula track structure sets up on steel longeron 1, including keeping apart 2, sleeper slab 3, T type bolt 4, prefabricated external member 5, sleeve pipe 6, high strength packing ring 7, nut 8, block 9, rail 10, fastener system 11, welding locating part 12, T type bolt hole 13, welding locating part draw-in groove 14.

Specifically, be equipped with between sleeper plate 3 and the steel longeron 1 and keep apart buffer board 2, fig. 6 is the embodiment of the utility model relates to a steel longeron structure sketch map combines fig. 6, and the welding has a plurality of welding locating part 12 on the steel longeron 1, corresponds with the spacing hole 31 of sleeper plate that sets up on through-hole and the sleeper plate 3 of keeping apart buffer board 2 respectively for welding locating part 12 passes through. Still be equipped with sleeve pipe 6 between sleeper board spacing hole 31 and the welding locating part 12, the welding locating part 12 outside is located to hollow sleeve pipe 6 cover, and isolation cushion plate 2 is passed through to its bottom, and the sleeve pipe lid 61 at its top is pressed on sleeper board 3. The sleeper plate 3 can be matched with the welding limiting part 12 through the sleeper plate limiting hole 31, and the position of the sleeper plate 3 can be quickly positioned.

Further, fig. 6 is a schematic structural view of the steel truss according to an embodiment of the present invention, and as shown in fig. 6, a T-shaped bolt hole 13 and a limiting clamping groove 14 are disposed in the welding limiting part 12; wherein, T type bolt hole 13 is corresponding with T type bolt hole 13, and spacing draw-in groove 14 avoids the setting with T type bolt hole 13, preferably, is the right angle between spacing draw-in groove 14 and the T type bolt hole 13.

Fig. 7 is a perspective view of a bushing according to an embodiment of the present invention, and fig. 8 is a plan view of a bushing according to an embodiment of the present invention. Referring to fig. 6, 7 and 8, the socket 6 includes a socket cover 61, a socket bolt hole 62 and a socket positioning boss 63. The sleeve bolt hole 62 corresponds to the T-bolt 4 and is used for the T-bolt 4 to pass through; the sleeve positioning boss 63 is arranged at the bottom of the sleeve cover 61 and is matched with the limiting clamping groove 14, namely the sleeve positioning boss 63 and the limiting clamping groove 14 are the same in shape and size. The sleeve bolt holes 62 and the sleeve positioning bosses 63 are arranged in a staggered manner. Preferably, the bushing bolt hole 62 is provided at the center of the bushing cover 61. The sleeve cover 61 is pressed on the top of the sleeper plate 3, and the sectional area of the sleeve cover 61 is larger than that of the tank body of the sleeve 6.

The sleeve 6 is fixedly connected with the steel truss girder (i.e. the welding limiting piece 12) through the T-shaped bolt 4 arranged in the T-shaped bolt hole 13. Through the perpendicular limiting action of sleeve cover 61 and steel truss 1, can fix the vertical position of sleeper slab, simplified the structure of traditional sleeper slab, improved the intensity of sleeper slab.

In addition, a prefabricated kit 5 is further arranged between the sleeve 6 and the sleeper plate limiting hole 31, the prefabricated kit 5 is sleeved on the outer side of the sleeve 6, and the size and the model of the prefabricated kit 5 are determined according to the sleeve 6 and the space between the sleeve 6 and the sleeper plate limiting hole 31. The prefabricated part 5 is of an elastic structure and is used for filling gaps between the sleeve 6 and the rail pillow plate limiting holes 31 and making up the defect that materials such as elastic resin cannot be filled in the gaps, so that the whole bridge structure has a buffering effect in the transverse direction.

The T-bolt rod 41 of the T-bolt 4 is rotatably mounted in the welding limiting member 12 along the T-bolt hole 14, and the high-strength washer 7, the nut 8 and the cap 9 are sequentially arranged on the top of the T-bolt rod 41 from bottom to top. The installation sequence is as follows: rotatably installing a T-shaped bolt rod 41 into the welding limiting part 13, continuously installing the prefabricated suite 5, and then installing the sleeve 6; the T-shaped bolt rod 41 penetrates through the sleeve bolt hole 62, and the sleeve positioning boss 63 is matched and positioned with the clamping groove 15; finally, the high-strength washer 7, the nut 8 and the cap 9 are sequentially mounted on the T-shaped bolt rod 41, and the T-shaped bolt is tightened to fix the sleeve 6 and the welding stopper 13.

In addition, fig. 11 is a schematic structural diagram of the rail tie plate according to an embodiment of the present invention, as shown in fig. 11, a pre-buried sleeve 32 is further disposed on the rail tie plate 3, and the pre-buried sleeve 32 is used for installing the steel rail 10 and the fastener system 11.

Preferably, the transverse span of the isolation buffer base plate 2 is the same as the transverse width of the main longitudinal beam of the steel truss girder 1; the longitudinal span of the isolation buffer cushion plate 2 is consistent with the longitudinal length of the prefabricated sleeper plate 3.

Preferably, the sleeve 6 and the welding position limiting part 12 are both prefabricated parts and have a good matching relation.

The utility model discloses a track structure, the isolation cushion plate 2 that sets up between sleeper slab 3 and the steel longeron 1 is provided with certain precompression volume when the installation for fixed isolation cushion plate 2 realizes better isolation buffering between sleeper slab and steel longeron, adapts to the deformation between sleeper slab and the steel longeron simultaneously, ensures vehicle-track-bridge system's security and stability. The vertical limiting effect on the sleeper plate is realized through a fixing structure between the sleeve and the steel truss girder, the sleeve and the truss girder jointly restrain the position of the sleeper plate, when a train passes through a track structure, due to the effect of train load, the sleeper plate 3 downwards compresses the isolation buffer base plate 2, the isolation buffer base plate absorbs part of the energy of vibration of a vehicle track system, the isolation buffer function between the sleeper plate and the steel truss girder is realized, and meanwhile, the deformation between the sleeper plate and the steel truss girder is adapted; after the train passes through the track structure, the sleeper plate 3 upwards restores to the initial position, and simultaneously, the geometric position of the sleeper plate 3 can be kept due to the limiting effect of the sleeve 6, so that the safety and the stability of the line are improved. The utility model discloses still optimize steel truss bridge and track structure's operational environment, improve steel truss and track structure's whole durability.

Current plate-type track structure adopts the bolt to pass sleeper slab, concrete layer and steel longeron in proper order, but adopts the mode of keeping apart the blotter and replacing concrete layer, if adopt traditional mode, when the bolt passes the isolation blotter, because the bolt of metal and the material difference of keeping apart the blotter, can have the compactness problem, the bolt is screwed up, can lead to keeping apart the blotter and die and can not exert the elastic action, screws up too loosely, the bolt plays not the fixed action who makes sleeper slab and steel longeron. The utility model discloses a sleeper plate formula track structure of blotter is kept apart in area of laying on steel longeron adopts the mode that sets up the welding locating part on steel longeron, makes bolt and welding locating part direct contact, has avoided bolt and isolation blotter direct contact and has caused the bolt to screw up the existing problem, and can guarantee to keep apart the elasticity of blotter, has further strengthened the stability of track and bridge structures.

The utility model discloses a sleeper plate formula track structure of blotter is kept apart in area of laying on the steel longeron, under the limiting displacement of sleeve pipe and welding locating part on the steel longeron, the sleeper plate can compress downwards under the train load effect and keep apart the cushion pad board, does not possess the space of upwards action, has guaranteed track structure's stability and security. Meanwhile, the transverse displacement and the longitudinal displacement of the sleeper plate are limited by the prefabricated external member, and the buffer effect of the track structure in the vertical direction and the horizontal direction is realized.

The utility model discloses welding locating part beading is on the steel longeron for track structure's installation is with fixed. The scheme that the traditional sleeper plate type track structure punches on the steel truss girder is avoided, the flexibility of sleeper plate construction is improved, and the requirement of strength design of the steel truss girder bridge is reduced.

The utility model provides a steel longeron upper band keeps apart board-like track structure of sleeper of blotter can lay the board-like track of sleeper on the steel longeron bridge floor safely, fast, accurately, possesses effectual isolation buffering effect simultaneously, adapts to the deformation between sleeper board and the steel longeron.

It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the scope of the present invention.

Claims (10)

1. A sleeper plate type track structure with an isolation cushion pad on a steel truss girder is arranged on the steel truss girder (1), comprises a sleeper plate (3) and is characterized by also comprising an isolation cushion pad plate (2) arranged between the sleeper plate (3) and a main longitudinal girder of the steel truss girder (1); and the number of the first and second electrodes,

a plurality of welding limiting parts (12) are arranged on the steel truss girder (1), a sleeve (6) is arranged in front of the welding limiting parts (12) and a sleeper plate limiting hole (31), the sleeve (6) is directly and fixedly connected with the welding limiting parts (12) through T-shaped bolts (4), and the top of the sleeve (6) is pressed on the sleeper plate (3); the isolation buffer base plate (2) is fixed by the sleeve (6) and the T-shaped bolt (4), and then the isolation buffer function between the sleeper plate (3) and the steel truss beam (1) is achieved.

2. The sleeper slab track structure with an isolation cushion on a steel truss girder according to claim 1, wherein the welding position limiters (12) correspond to the through holes of the isolation cushion plate (2) and the sleeper plate limiting holes (31), respectively.

3. A sleeper slab track structure with isolation and cushioning pad on steel truss girder according to claim 1 or 2, characterized in that the bushing (6) comprises a bushing cover (61), a bushing bolt hole (62) and a bushing positioning boss (63).

4. The sleeper slab type rail structure with the isolation cushion on the steel truss girder according to claim 3, wherein the welding limiting part (12) is provided with a T-shaped bolt hole (13) and a limiting clamping groove (14).

5. The sleeper slab track structure with the isolation cushion on the steel truss girder according to claim 4, wherein the sleeve positioning boss (63) is arranged at the bottom of the sleeve cover (61) and matched with the limiting clamping groove (14).

6. A sleeper slab track structure with isolation buffer on steel truss girder according to claim 4, characterized in that the sleeve bolt hole (62) is matched with the T bolt (4).

7. The sleeper slab track structure with the isolation and buffer cushion on the steel truss girder according to claim 1 or 6, characterized in that a prefabricated kit (5) is further arranged between the sleeve (6) and the sleeper slab limiting hole (31).

8. The sleeper slab track structure with the isolation cushion on the steel truss girder according to claim 7, wherein a high-strength washer (7), a nut (8) and a cap (9) are sequentially arranged on the top of the T-shaped bolt (4) from bottom to top.

9. A sleeper slab track structure with isolation and cushioning pad on steel truss girder according to claim 1 or 8, characterized in that the sleeper slab (3) is further provided with pre-embedded sleeves (32) for installing the rail (10) and the fastener system (11).

10. The sleeper slab track structure with the isolation cushion pad on the steel truss girder according to claim 9, characterized in that the lateral span of the isolation cushion pad plate (2) is the same as the lateral width of the main longitudinal girder of the steel truss girder (1); the longitudinal span of the isolation buffer base plate (2) is consistent with the longitudinal length of the sleeper plate (3).

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