CN220433381U - Passenger-cargo collinear railway simply-supported T-beam structure with sound barrier - Google Patents
Passenger-cargo collinear railway simply-supported T-beam structure with sound barrier Download PDFInfo
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- CN220433381U CN220433381U CN202322334819.9U CN202322334819U CN220433381U CN 220433381 U CN220433381 U CN 220433381U CN 202322334819 U CN202322334819 U CN 202322334819U CN 220433381 U CN220433381 U CN 220433381U
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- 230000004888 barrier function Effects 0.000 title claims abstract description 77
- 238000011065 in-situ storage Methods 0.000 claims abstract description 49
- 230000000903 blocking effect Effects 0.000 claims abstract description 12
- 230000005484 gravity Effects 0.000 claims description 4
- 239000004570 mortar (masonry) Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 15
- 238000007689 inspection Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model relates to a passenger-cargo collinear railway simply-supported T-beam structure with a sound barrier, wherein cast-in-situ sound barrier foundation beams are arranged at the ends of prefabricated side beams at two sides of a single-line beam body, the outer sides of the cast-in-situ sound barrier foundation beams are used for being connected with the sound barrier, cast-in-situ ballast blocking walls are arranged at the ends of the prefabricated side beams, the cast-in-situ sound barrier foundation beams are provided with groove structures, and cable grooves are formed in the groove structures; along the longitudinal direction of the beam body, the foundation cross beams of each cast-in-situ sound barrier are connected through longitudinal beams. The utility model has the advantages that: the sound barrier longitudinal beam and the cable trough bottom plate can be prefabricated, so that the cantilever plate and part of sound barrier foundation cast-in-situ operation is canceled, the construction difficulty and the construction risk can be remarkably reduced, and the working efficiency is improved; meanwhile, the total amount of the sound barrier and the bottom plate of the cable trough can be flexibly selected to be cast in situ according to the field conditions; the lengths of the sound barrier longitudinal beam and the cantilever at the bottom of the cable tank can be effectively shortened, the secondary constant load of the bridge deck is reduced on the premise of meeting the requirement of a bridge deck inspection channel, and the economy is good.
Description
Technical Field
The utility model relates to the technical field of bridge construction structures, in particular to a passenger-cargo collinear railway simply-supported T-beam structure with a sound barrier.
Background
Currently, a general reference diagram of a passenger-cargo collinear railway simply-supported T-beam (provided with a sound barrier) by a prefabricated post-tensioning method of passenger-cargo collinear railways at 160 km per hour (figure: through bridge (2012) 2109) issued by China railway head office company is provided, and when designing the bridge, technicians can perform structural design based on the general reference diagram to design the simply-supported T-beam which meets the requirements of construction projects.
However, the bridge (2012) 2019 beam type has the following drawbacks:
1) The cantilever plates, the sound barrier foundation and the blocking ballast wall of the overhaul channel are all subjected to site reinforcement binding and formwork erection pouring after the T beam is erected, transverse prestress steel beam tensioning is carried out after the concrete strength reaches the standard, the above are all in-site high-altitude operation, and the safety management and control risks are high and the implementation difficulty is high during construction.
2) The cable groove adopts SMC finished product cable groove to arrange on the maintenance passageway, has compressed the effective width of maintenance passageway, and with lead to bridge (2017) 2101 girder type prefabricated cable groove inconsistent, need adopt transitional measure to handle.
3) The width of the beam type overhaul channel of the through bridge (2017) 2101 is inconsistent, and the longitudinal alignment is uneven when adjacent, so that the appearance is affected.
4) The transverse width of the cantilever plate of the overhaul channel and the basic transverse bridge of the sound barrier reaches 1.35m, the constant load in the second period is heavier, and the economy is poor.
5) The through bridge (2012) 2109 is designed by adopting old version specifications, and according to requirements of ' concrete structural design specification of railway bridge and culvert ' (TB 10092-2017) and ' concrete engineering construction technical regulations of railway (Q/CR 9207-2017), the steel bar hooks are required to be lengthened, the live load is adjusted to be ZKH from the middle live load, and the through bridge (2012) 2109 is required to be modified according to the current specifications.
Disclosure of Invention
According to the defects of the prior art, the utility model provides the passenger-cargo collinear railway simply-supported T-beam structure with the sound barrier, and the structural optimization of the passenger-cargo collinear railway simply-supported T-beam is realized by designing the structure and the construction of the single-line beam body, so that the construction efficiency and the construction quality are improved.
The utility model is realized by the following technical scheme:
a passenger-cargo collinear railway simply supported T-beam structure with a sound barrier comprises a single-line beam body and is characterized in that: the side beam body is characterized in that cast-in-situ sound barrier foundation beams are arranged at the ends of the precast side beams at the two sides of the single-line beam body, the outer sides of the cast-in-situ sound barrier foundation beams are used for being connected with a sound barrier, cast-in-situ ballast blocking walls are arranged at the ends of the precast side beams, the cast-in-situ sound barrier foundation beams are of groove structures, and cable grooves are formed in the groove structures; and the foundation cross beams of the cast-in-situ sound barrier are connected through longitudinal beams along the longitudinal direction of the beam body.
The cable trough comprises a cable trough bottom plate and a cover plate, wherein the cable trough bottom plate is arranged at the bottom of the trough structure of the cast-in-situ sound barrier foundation beam, the cover plate is positioned above the cable trough bottom plate, one end of the cover plate is erected on the surface of the cast-in-situ sound barrier foundation beam or the longitudinal beam, and the other end of the cover plate is erected on a step arranged on the cast-in-situ ballast blocking wall.
The cable trough is internally divided by a dividing wall with a certain thickness.
The cover plate is fixedly connected with the cast-in-situ ballast blocking wall through a cover plate fixing device.
The cast-in-situ sound barrier foundation beam is embedded with a U-shaped embedded part, and is connected with the sound barrier through the U-shaped embedded part.
And gravity type flowing mortar is arranged at the connecting interface position between the U-shaped embedded part and the sound barrier.
The utility model has the advantages that:
1) The sound barrier longitudinal beam and the cable trough bottom plate can be prefabricated, so that the cantilever plate and part of sound barrier foundation cast-in-situ operation is canceled, the construction difficulty and the construction risk can be remarkably reduced, and the working efficiency is improved; meanwhile, the total amount of the sound barrier and the bottom plate of the cable trough can be flexibly selected to be cast in situ according to the field conditions;
2) The lengths of the sound barrier longitudinal beam and the cantilever at the bottom of the cable tank can be effectively shortened, the secondary constant load of the bridge deck is reduced on the premise of meeting the requirement of a bridge deck inspection channel, the engineering investment is reduced, and the economical efficiency is good;
3) The post-maintenance is convenient, the appearance is beautiful, and the device is suitable for popularization.
Drawings
FIG. 1 is a schematic view of a single-line beam transverse arrangement in accordance with the present utility model;
FIG. 2 is a plan view of a 1/2 sound barrier foundation beam configuration in accordance with the present utility model;
FIG. 3 is a cross-sectional view I-I of FIG. 2;
FIG. 4 is a section II-II of FIG. 2.
Description of the embodiments
The features of the utility model and other related features are described in further detail below by way of example in conjunction with the following figures to facilitate understanding by those skilled in the art:
as shown in fig. 1-4, the labels 1-12 are shown as: the concrete structure comprises a single-line beam body 1, a cast-in-situ sound barrier foundation beam 2, a prefabricated sound barrier foundation longitudinal beam 3, a cable trough bottom plate 4, prefabricated side beams 5, wet joints 6, a cast-in-situ ballast blocking wall 7, an RPC cover plate 8, a cover plate fixing device 9, a brick wall 10, gravity type flowing mortar 11 and a U-shaped embedded part 12.
Examples: as shown in fig. 1 to 4, the sound barrier-carrying passenger-cargo collinear railway simply-supported T-beam body of the present embodiment includes a single-line beam body 1, and the single-line beam body 1 is used for carrying passenger-cargo collinear railways. As shown in fig. 1, one side of the single-line beam body 1 is a sound barrier column side a, and the other side is a silence barrier column side B, which respectively represent a beam body structure having a sound barrier side and a silence barrier side.
Specifically, as shown in fig. 1, 2 and 3, the beam structure with the sound barrier upright post side a includes a cast-in-situ sound barrier foundation beam 2 arranged outside a prefabricated side beam 5 of the single-line beam body 1, and the cast-in-situ sound barrier foundation beam 2 can be constructed by adopting a bracket cast-in-situ. The cast-in-situ sound barrier foundation beam 2 is pre-buried with a U-shaped embedded part 12 during construction, and the U-shaped embedded part 12 is used for being connected with a sound barrier so as to fixedly connect the cast-in-situ sound barrier foundation beam 2 with the sound barrier and form an integral structure. Meanwhile, gravity type flowing mortar 11 is arranged at the butt joint interface position of the cast-in-situ sound barrier foundation beam 2 and the sound barrier so as to realize leveling, height adjustment and supporting functions.
As shown in fig. 3, the cast-in-situ sound barrier foundation beam 2 is formed with a groove structure to form a cable groove when cast-in-situ, and can be used for laying various cables for passenger-cargo collinear railways. The cable trough comprises a cable trough bottom plate 4 and an RPC cover plate 8, wherein the cable trough bottom plate 4 is paved at the bottom of a cast-in-situ sound barrier foundation beam 2, the RPC cover plate 8 is arranged above the cable trough bottom plate 4, one end of the RPC cover plate is erected on the surface of the cast-in-situ sound barrier foundation beam 2, and the other end of the RPC cover plate is erected on a step which is arranged on a cast-in-situ ballast blocking wall 7 poured at the end part of a precast side beam 7 and used for playing a role in separation.
In this embodiment, as shown in fig. 3, a brick wall 10 is provided between the cable trough bottom plate 4 and the RPC cover plate 8 to divide the cable trough into two areas, such as a strong current area and a weak current area, so as to facilitate the laying of the cables and further avoid the mutual influence between the cables. The RPC cover plate 8 can be fixedly connected with the cast-in-situ ballast blocking wall 7 through a cover plate fixing device 9 so as to ensure the structural stability of the RPC cover plate 8; when the cable in the cable trough is required to be subjected to inspection maintenance, the RPC cover plate 8 is opened.
As shown in fig. 1 and 2, the cast-in-situ sound barrier foundation beams 2 are arranged at intervals along the longitudinal direction of the beam body (longitudinal direction of the beam body) according to the installation requirement of the sound barrier, and the adjacent cast-in-situ sound barrier foundation beams 2 are connected by arranging the prefabricated sound barrier foundation longitudinal beams 3 to form an integral structure, so that the structural stability of the sound barrier foundation is ensured. When the prefabricated installation construction method is adopted, the position of the prefabricated sound barrier foundation longitudinal beam 3 is kept accurate, the reserved reinforcing steel bars at the end parts of the prefabricated sound barrier foundation longitudinal beam are mutually overlapped with the reserved reinforcing steel bars of the cast-in-situ sound barrier foundation transverse beam 2, and the wet joint 6 concrete is poured for fixing.
As shown in fig. 1, 2 and 4, the beam structure between adjacent foundation beams 2 of the cast-in-situ sound barrier is the beam structure at the upright side B of the sound barrier in fig. 1. The prefabricated side beams 7 and the prefabricated sound barrier foundation longitudinal beams 3 are directly connected through a cable duct formed by a cable duct bottom plate 4 and an RPC cover plate 8. At this time, one end of the RPC cover plate 8 is also erected on the step arranged on the cast-in-situ ballast blocking wall 7, and the other end is erected on the step preset by the prefabricated sound barrier foundation longitudinal beam 3, so that the structural stability is ensured.
The embodiment is implemented in specific manner: the prefabricated sound barrier foundation longitudinal beam 3 and the cable duct bottom plate 4 are preferably prefabricated, so that the cantilever plate and part of sound barrier foundation cast-in-situ operation is omitted, the construction difficulty and the construction risk can be remarkably reduced, and the working efficiency is improved. Meanwhile, through structural design, the cantilever lengths of the prefabricated sound barrier foundation longitudinal beam 3 and the cable duct bottom plate 4 are shortened, and the secondary constant load of the bridge deck is reduced on the premise of meeting the bridge deck inspection channel.
Although the foregoing embodiments have been described in some detail with reference to the accompanying drawings, it will be appreciated by those skilled in the art that various modifications and changes may be made thereto without departing from the scope of the utility model as defined in the appended claims, and thus are not repeated herein.
Claims (6)
1. A passenger-cargo collinear railway simply supported T-beam structure with a sound barrier comprises a single-line beam body and is characterized in that: the side beam body is characterized in that cast-in-situ sound barrier foundation beams are arranged at the ends of the precast side beams at the two sides of the single-line beam body, the outer sides of the cast-in-situ sound barrier foundation beams are used for being connected with a sound barrier, cast-in-situ ballast blocking walls are arranged at the ends of the precast side beams, the cast-in-situ sound barrier foundation beams are of groove structures, and cable grooves are formed in the groove structures; and the foundation cross beams of the cast-in-situ sound barrier are connected through longitudinal beams along the longitudinal direction of the beam body.
2. The sound barrier-equipped passenger-cargo collinear railway simply supported T-beam structure of claim 1, wherein: the cable trough comprises a cable trough bottom plate and a cover plate, wherein the cable trough bottom plate is arranged at the bottom of the trough structure of the cast-in-situ sound barrier foundation beam, the cover plate is positioned above the cable trough bottom plate, one end of the cover plate is erected on the surface of the cast-in-situ sound barrier foundation beam or the longitudinal beam, and the other end of the cover plate is erected on a step arranged on the cast-in-situ ballast blocking wall.
3. The sound barrier-equipped passenger-cargo collinear railway simply supported T-beam structure of claim 2, wherein: the cable trough is internally divided by a dividing wall with a certain thickness.
4. The sound barrier-equipped passenger-cargo collinear railway simply supported T-beam structure of claim 2, wherein: the cover plate is fixedly connected with the cast-in-situ ballast blocking wall through a cover plate fixing device.
5. The sound barrier-equipped passenger-cargo collinear railway simply supported T-beam structure of claim 1, wherein: the cast-in-situ sound barrier foundation beam is embedded with a U-shaped embedded part, and is connected with the sound barrier through the U-shaped embedded part.
6. The sound barrier-equipped passenger-cargo collinear railway simply supported T-beam structure of claim 5, wherein: and gravity type flowing mortar is arranged at the connecting interface position between the U-shaped embedded part and the sound barrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322334819.9U CN220433381U (en) | 2023-08-30 | 2023-08-30 | Passenger-cargo collinear railway simply-supported T-beam structure with sound barrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322334819.9U CN220433381U (en) | 2023-08-30 | 2023-08-30 | Passenger-cargo collinear railway simply-supported T-beam structure with sound barrier |
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| Publication Number | Publication Date |
|---|---|
| CN220433381U true CN220433381U (en) | 2024-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322334819.9U Active CN220433381U (en) | 2023-08-30 | 2023-08-30 | Passenger-cargo collinear railway simply-supported T-beam structure with sound barrier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220433381U (en) |
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2023
- 2023-08-30 CN CN202322334819.9U patent/CN220433381U/en active Active
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