CN223358085U - High-speed railway large-span bridge transition plate renovation structure - Google Patents
High-speed railway large-span bridge transition plate renovation structureInfo
- Publication number
- CN223358085U CN223358085U CN202422789847.4U CN202422789847U CN223358085U CN 223358085 U CN223358085 U CN 223358085U CN 202422789847 U CN202422789847 U CN 202422789847U CN 223358085 U CN223358085 U CN 223358085U
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- transition plate
- plate unit
- transition
- speed railway
- span bridge
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Abstract
The utility model discloses a high-speed railway large-span bridge transition plate repairing structure which comprises a first transition plate unit and a second transition plate unit, wherein the first transition plate unit and the second transition plate unit are respectively connected with a beam body structure in an anchoring manner through a plurality of vertical anchor bars, and the first transition plate unit and the second transition plate unit are respectively connected with a limiting plate in an anchoring manner through a plurality of transverse anchor bars at a boss structure. This high-speed railway large-span bridge transition plate renovation structure cancels current "transition plate+rubber support" and strides beam seam structure, reforms transform the regional novel beam-end track structure of transition plate, divide into mutually independent two parts with the transition plate promptly in girder seam department, directly be connected two parts transition plate unit and roof beam body structure and limiting plate, can reduce through this kind of structure and will cause the increase of rail support interval on the beam-end transition plate because of girder seam, phenomenon such as rail and fastener atress are unusual, is favorable to promoting driving safety.
Description
Technical Field
The utility model relates to the technical field of railway construction, in particular to a high-speed railway large-span bridge transition plate repairing structure.
Background
The girder seams of the high-speed railway long-span bridges such as tie bars, basket arches and the like can cause the increase of the supporting distance of the girder end steel rail, increase the stress of the steel rail and the fastener, possibly cause rail breakage and derailment of a train when the stress exceeds a certain range, endanger the driving safety, and solve the design problem of crossing the girder seams of ballastless tracks on the long-span bridges by arranging the transition plate structure at the girder end.
The existing transition plate structure is placed on a bridge structure through a support structure, a transition plate support rubber block is made of a viscoelastic material and has creep characteristics, the surface of the support rubber block bears pressure under the combined action of train impact, temperature load and the like, the support rubber block is gradually aged along with the increase of service time, residual deformation is increased, and further a series of diseases are caused to the transition plate, such as the damage and the falling of a pad stone under the transition plate support, the ageing deformation and the cracking of the rubber support, the deterioration of a transverse limiter of the transition plate and the like, and the diseases cause uneven sinking and deflection of the transition plate, and further cause a series of secondary diseases such as the widening of a rail tread of a beam end wheel, the running-out of a rubber pad under the rail, the empty hanging of a rail and a rail lower pad and the like.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provides a high-speed railway long-span bridge transition plate repairing structure.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
The utility model provides a high-speed railway large-span bridge transition board renovation structure, includes the transition board of setting on the roof beam body structure, and sets up the limiting plate at transition board both ends, the transition board includes first transition board unit and second transition board unit, first transition board unit with be equipped with the roof beam seam between the second transition board unit, first transition board unit with the second transition board unit is kept away from the one end of roof beam seam is equipped with boss structure respectively, the limiting plate orientation one side of transition board is equipped with respectively and holds boss structure's groove structure, first transition board unit with the second transition board unit respectively through a plurality of vertical anchor bars with roof beam body structure anchor is connected, first transition board unit with the second transition board unit respectively be in boss structure department through a plurality of horizontal anchor bars with limiting plate anchor is connected.
This high-speed railway large-span bridge transition plate renovation structure cancels current "transition plate+rubber support" and strides beam seam structure, reforms transform the regional novel beam-end track structure of transition plate, divide into two parts mutually independent with the transition plate in girder seam department promptly, directly be connected two parts transition plate unit and roof beam body structure and limiting plate, can reduce through this kind of structure and will cause the rail to support the interval increase on the beam-end transition plate because of girder seam, phenomenon such as rail and fastener atress are unusual, be favorable to promoting driving safety, this kind of structure also is convenient for the independent change of every transition plate unit simultaneously, be favorable to later maintenance.
The boss structure with groove structure's setting can play location, spacing and the effect of being connected in advance, can be fine let transition board and limiting plate connect, when setting up horizontal anchor bar, horizontal anchor bar can pass boss structure and let the transition board with limiting plate fixed connection is in the same place, and stability is higher, can not rock and displacement relatively easily between the two.
The first transition plate unit and the second transition plate unit are directly connected with the beam body structure by utilizing a plurality of vertical anchor bars, the anchoring stability is higher, the relative movement between the first transition plate unit and the second transition plate unit is reduced, and the abnormal increase of the distance between the support rails is avoided.
Further, the four corners and the center of the first transition plate unit and the second transition plate unit are respectively provided with a plurality of grouting holes, and the grouting holes extend downwards to the area between the transition plate and the beam body structure so as to facilitate grouting operation.
Further, the boss structure is arranged in the middle of the end face of the transition plate, the cross section of the boss structure is rectangular, trapezoidal or semicircular, and the dimension of the boss structure in the length direction is 700-750 mm.
Further, the first transition plate unit and the second transition plate unit are respectively provided with vertical anchor holes which are transversely and/or longitudinally arranged at intervals, the vertical anchor holes respectively extend into the beam body structure, the vertical anchor bars are connected with the vertical anchor holes, the overall depth of the vertical anchor holes is 735-950 mm, and the length of the vertical anchor bars is 685-900 mm.
Further, the limiting plate is provided with a transverse anchor hole which penetrates transversely, the transverse anchor hole penetrates through the boss structure, the transverse anchor bar is connected to the transverse anchor hole, and the length of the transverse anchor bar is shorter than that of the transverse anchor hole.
Further, the transverse anchor bars are of a two-section structure and are connected through a straight thread sleeve.
Further, the vertical anchor bars and the transverse anchor bars are thread reinforcing bars of HRB400, the diameters of the vertical anchor bars are 25-30 mm, and the diameters of the transverse anchor bars are 30-35 mm.
Further, a mortar adjusting layer is respectively arranged between the gap between the first transition plate unit and the limiting plate, between the transition plate and the beam structure.
Further, a plurality of detachable BWG fastener systems are respectively arranged on the limiting plate and the transition plate, and the BWG fastener systems are used for connecting steel rails.
Compared with the prior art, the bridge transition plate repairing structure for the high-speed railway has the beneficial effects that 1, the bridge transition plate repairing structure for the high-speed railway has the advantages that an existing bridge seam crossing structure of a transition plate and a rubber support is eliminated, a transition plate area is modified into a novel girder end track structure, namely, a girder seam is divided into two mutually independent parts, two parts of transition plate units are directly connected with a girder body structure and a limiting plate, the phenomena that the supporting distance of a steel rail on the girder end transition plate is increased, the stress of the steel rail and a fastener is abnormal and the like due to the girder seam can be reduced, the driving safety is improved, and meanwhile, the structure is convenient for independent replacement of each transition plate unit and the later maintenance; the transverse anchor bar can penetrate through the boss structure to fixedly connect the transition plate with the limiting plate, the stability is high, relative shaking and displacement cannot be easily caused between the two transition plate units, 4, the first transition plate unit and the second transition plate unit are directly connected with the beam body structure by utilizing a plurality of vertical anchor bars, the anchoring stability is higher, the relative movement between the two anchor bars is reduced, and the abnormal increase of the distance of a support rail is avoided.
Drawings
FIG. 1 is a schematic top view of a high-speed railway long-span bridge transition plate renovation structure;
FIG. 2 is a schematic diagram showing the distribution of grouting holes on a high-speed railway long-span bridge transition plate repairing structure;
FIG. 3 is a schematic view of a transverse tendon arrangement of the present utility model;
FIG. 4 is a schematic cross-sectional view of the transverse tendon arrangement of the present utility model;
In the figure, 1, a first transition plate unit; 2, a second transition plate unit, 3, beam joints, 4, a limiting plate, 5, a boss structure, 6, a groove structure, 7, a BWG fastener system, 8, a vertical anchor bar, 9, a transverse anchor bar, 10, a grouting hole, 11 and a mortar adjusting layer.
Detailed Description
The following description of the embodiments of the present utility model will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by one of ordinary skill in the art without undue burden on the person of ordinary skill in the art based on embodiments of the present utility model, are within the scope of the present utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1-4, the high-speed railway long-span bridge transition plate renovation structure comprises transition plates arranged on a beam body structure and limiting plates 4 arranged at two ends of the transition plates, wherein the transition plates comprise a first transition plate unit 1 and a second transition plate unit 2, beam gaps 3 are arranged between the first transition plate unit 1 and the second transition plate unit 2, boss structures 5 are respectively arranged at one ends, away from the beam gaps 3, of the first transition plate unit 1 and the second transition plate unit 2, groove structures 6 for accommodating the boss structures 5 are respectively arranged at one sides, facing the transition plates, of the limiting plates 4, the first transition plate unit 1 and the second transition plate unit 2 are respectively connected with the beam body structure in an anchoring manner through a plurality of vertical anchor bars 8, and the first transition plate unit 1 and the second transition plate unit 2 are respectively connected with the limiting plates 4 in an anchoring manner through a plurality of transverse anchor bars 9 at the boss structures 5.
This high-speed railway large-span bridge transition plate renovation structure cancels current "transition plate+rubber support" and strides beam seam structure, reforms transform the regional novel beam-end track structure of transition plate, divide into two parts mutually independent with the transition plate in girder seam department promptly, directly be connected two parts transition plate unit and roof beam body structure and limiting plate, can reduce through this kind of structure and will cause the rail to support the interval increase on the beam-end transition plate because of girder seam, phenomenon such as rail and fastener atress are unusual, be favorable to promoting driving safety, this kind of structure also is convenient for the independent change of every transition plate unit simultaneously, be favorable to later maintenance.
The beam seam between the first transition plate unit 1 and the second transition plate unit 2 is arranged corresponding to the girder seam on the girder structure, so that the transverse cutting is conveniently carried out at the original complete transition plate during construction, and the original transition plate is conveniently lifted and removed from the original support. The width of the beam seam is 15-20mm, and the beam seam can be left or can be closed by filling mortar or plates at a later stage.
The boss structure 5 with the setting of groove structure 6 can play location, spacing and the effect of being connected in advance, can be fine let transition board and limiting plate connect, when setting up horizontal anchor 9, horizontal anchor 9 can pass boss structure 5 lets the transition board with limiting plate fixed connection is in the same place, and stability is higher, can not rock and displacement relatively easily between the two.
The first transition plate unit 1 and the second transition plate unit 2 are directly connected with the beam body structure by utilizing a plurality of vertical anchor bars 8, the anchoring stability is higher, the relative movement between the two is reduced, and the abnormal increase of the distance between the support rails is avoided.
Further, the four corners and the center of the first transition plate unit 1 and the second transition plate unit 2 are respectively provided with a plurality of grouting holes 10, and the grouting holes 10 extend downwards to the area between the transition plate and the beam body structure.
The grouting holes 10 can be used as grouting channels in the repairing process, cement mortar is poured between the first transition plate unit 1 and the second transition plate unit 2 and the beam structure below, a mortar adjusting layer 11 is finally formed, and the supporting heights of the first transition plate unit 1 and the second transition plate unit 2 can be adjusted in the pouring process, so that the two transition plate units can be well supported.
In the construction process, after the support is dismantled, mortar bags are filled at the original positions of the support of the transition plate and at the two ends of the beam seam to serve as temporary support transition measures, the size of each mortar bag is 500mm multiplied by 500mm, the mortar bags are filled by a mortar pump, and the filling pressure is not more than 0.3MPa.
Further, the boss structure 5 is arranged in the middle of the end face of the transition plate, the cross section of the boss structure 5 is rectangular, trapezoid or semicircular, the cross section of the groove structure 6 corresponds to the cross section of the boss structure, and the dimension of the boss structure 5 in the length direction is 700-750 mm, preferably 730mm.
Further, vertical anchor holes which are arranged transversely and/or longitudinally at intervals are respectively arranged on the first transition plate unit 1 and the second transition plate unit 2, the vertical anchor holes extend into the beam body structure respectively, the vertical anchor bars 8 are connected with the vertical anchor holes, the overall depth of the vertical anchor holes is 735-950 mm, and the length of the vertical anchor bars is 685-900 mm.
And (3) after the cement mortar material poured below the transition plate reaches the strength, the transition plate and the beam body structure are subjected to bar planting anchoring in a bar planting mode, vertical anchor hole drilling is performed by adopting a water drill, the aperture is 35mm, the drilling depth is about 735-950 mm, the drilling is performed perpendicular to the surface of the transition plate, the allowable deviation is 1 degree, and the connection strength and the stability of the transition plate and the beam body structure can be greatly improved by implanting the vertical anchor bars in the mode. The length of the vertical anchor bar is smaller than the depth of the vertical anchor hole, so that more bar planting materials can be contained, the vertical anchor bar is prevented from being exposed, and the upper surface of the transition plate is ensured to have no protruding rib body.
Further, a transverse anchor hole penetrating transversely is formed in the limiting plate 4, the transverse anchor hole penetrates through the boss structure 5, the transverse anchor rib 9 is connected to the transverse anchor hole, and the length of the transverse anchor rib 9 is shorter than that of the transverse anchor hole.
The boss structure 5 is anchored and connected with the limiting plate 4 in a transverse bar planting mode, namely the transition plate and the limiting plate are anchored into a whole, and stability of two transition plate units after cutting can be enhanced.
The anchor holes are drilled by adopting a water drill, the aperture is 40mm, the drilling depth is 2800mm (transverse drilling through the limiting plate), the drilling is horizontally carried out perpendicular to the side surface of the limiting plate, and the tolerance is 1 degree. The implanted steel bar is 2600mm in length and 32mm in diameter. The same length of the transverse anchor bars is shorter than that of the transverse anchor holes, so that the transverse anchor bars can be prevented from extending out of two sides of the limiting plate.
Further, the transverse anchor bar 9 is of a two-section structure, and the length of a single section is 1300mm and is connected through a straight thread sleeve.
Further, the vertical anchor bars 8 and the horizontal anchor bars 9 are screw-thread steel bars of HRB400, the diameter of the vertical anchor bars 8 is 25-30 mm, preferably 28mm, and the diameter of the horizontal anchor bars 9 is 30-35 mm, preferably 32mm.
Furthermore, the gaps between the first transition plate unit 1 and the second transition plate unit 2 and the limiting plate 4, and the gaps between the transition plates and the beam structure are respectively provided with a mortar adjusting layer 11, so that the gaps can be filled, and the adjusting effect can be achieved.
Further, the limiting plate 4 and the transition plate are respectively provided with a plurality of detachable BWG fastener systems 7, and the BWG fastener systems 7 are used for connecting steel rails.
The BWG fastener system 7 comprises an elastic base plate arranged on a transition plate or a limiting plate, a base plate is arranged below the elastic base plate, a pair of gauge baffles are arranged on the elastic base plate, elastic strips are arranged on the gauge baffles and connected with the gauge baffles and the elastic base plate through sleeper bolts, anchor bolts are arranged on two sides of the elastic base plate, located on the pair of gauge baffles, and penetrate through the elastic base plate to be connected with embedded parts in anchoring of the transition plate or the limiting plate below.
In the construction of dismantling original support, can dismantle the existing fastener of roof beam seam top, only remain the built-in fitting to fill the built-in fitting hole with the anchor mortar, after the solidification of anchor mortar, polish the correction to the surface. Cleaning and drying the embedded holes of the fasteners, ensuring the clean and dry inside the holes, positioning the embedded parts by using a positioning die and an anchor bolt, enabling the top surfaces of the embedded parts to be flush with or slightly lower than the top surface of the transition plate, pouring anchor mortar into the mounting holes, removing the positioning die after the anchor mortar is solidified and reaches a certain strength, and subsequently mounting a BWG fastener system.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The bridge transition plate repairing structure for the high-speed railway large span comprises transition plates arranged on a beam body structure and limiting plates arranged at two ends of the transition plates, and is characterized in that the transition plates comprise a first transition plate unit and a second transition plate unit, beam gaps are formed between the first transition plate unit and the second transition plate unit, boss structures are respectively arranged at one ends, far away from the beam gaps, of the first transition plate unit and the second transition plate unit, groove structures for accommodating the boss structures are respectively arranged at one sides, facing the transition plates, of the limiting plates, the first transition plate unit and the second transition plate unit are respectively connected with the beam body structure in an anchoring mode through a plurality of vertical anchor bars, and the first transition plate unit and the second transition plate unit are respectively connected with the limiting plates in an anchoring mode through a plurality of transverse anchor bars.
2. The high-speed railway large-span bridge transition plate renovation structure of claim 1, wherein the four corners and the center of the first transition plate unit and the second transition plate unit are further provided with a plurality of grouting holes, respectively, which extend downward to the area between the transition plate and the beam structure.
3. The high-speed railway large-span bridge transition plate renovation structure of claim 1, wherein the boss structure is arranged in the middle of the end face of the transition plate, the cross section of the boss structure is rectangular, trapezoid or semicircular, and the dimension of the boss structure in the length direction is 700-750 mm.
4. The high-speed railway large-span bridge transition plate renovation structure of claim 1, wherein the first transition plate unit and the second transition plate unit are respectively provided with vertical anchor holes which are arranged transversely and/or longitudinally at intervals, the vertical anchor holes respectively extend into the girder body structure, the vertical anchor bars are connected with the vertical anchor holes, the overall depth of the vertical anchor holes is 735-950 mm, and the length of the vertical anchor bars is 685-900 mm.
5. The high-speed railway large-span bridge transition plate renovation structure of claim 1, wherein the limiting plate is provided with a transverse anchor hole which penetrates transversely, the transverse anchor hole penetrates through the boss structure, the transverse anchor bar is connected with the transverse anchor hole, and the length of the transverse anchor bar is shorter than that of the transverse anchor hole.
6. The high-speed railway large-span bridge transition plate renovation structure of claim 5, wherein the transverse anchor bar is of a two-section structure and is connected through a straight thread sleeve.
7. The high-speed railway large-span bridge transition plate renovation structure of claim 1, wherein the vertical anchor bars and the transverse anchor bars are all thread steel bars of HRB400, the diameter of the vertical anchor bars is 25-30 mm, and the diameter of the transverse anchor bars is 30-35 mm.
8. The high-speed railway large-span bridge transition plate renovation structure of claim 1, wherein the gaps between the first transition plate unit and the second transition plate unit and the limiting plate, and the gaps between the transition plate and the beam structure are respectively provided with a mortar adjustment layer.
9. The high-speed railway large-span bridge transition plate renovation structure of claim 1, wherein the limiting plate and the transition plate are respectively provided with a plurality of detachable BWG fastener systems, and the BWG fastener systems are used for connecting steel rails.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422789847.4U CN223358085U (en) | 2024-11-15 | 2024-11-15 | High-speed railway large-span bridge transition plate renovation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422789847.4U CN223358085U (en) | 2024-11-15 | 2024-11-15 | High-speed railway large-span bridge transition plate renovation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223358085U true CN223358085U (en) | 2025-09-19 |
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ID=97032887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422789847.4U Active CN223358085U (en) | 2024-11-15 | 2024-11-15 | High-speed railway large-span bridge transition plate renovation structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN223358085U (en) |
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2024
- 2024-11-15 CN CN202422789847.4U patent/CN223358085U/en active Active
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