CN214089465U - Invisible track structure of large-span bridge maintenance car - Google Patents
Invisible track structure of large-span bridge maintenance car Download PDFInfo
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- CN214089465U CN214089465U CN202022230831.1U CN202022230831U CN214089465U CN 214089465 U CN214089465 U CN 214089465U CN 202022230831 U CN202022230831 U CN 202022230831U CN 214089465 U CN214089465 U CN 214089465U
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Abstract
The utility model discloses a large-span bridge maintenance car invisible track structure, which comprises a steel box girder, wherein a plurality of cross clapboards are arranged inside the steel box girder, two longitudinal through-length groove-shaped openings are arranged at the transverse interval of a bottom plate, and an inner groove cavity which is formed by longitudinal ribs and is longitudinally through-length is arranged in the steel box girder above the groove-shaped openings; the upper flange of the track beam of the maintenance vehicle is detachably connected with the lower part of the diaphragm plate in the main beam of the steel box beam; and the maintenance vehicle is arranged below the main beam of the steel box girder, and a running mechanism of the maintenance vehicle is supported on the lower flange of the track beam, so that the track beam of the maintenance vehicle is used as a running surface of the maintenance vehicle. The utility model discloses avoided exposing in the influence of the maintenance car track of the breast to large-span bridge girder aerodynamic characteristic and stability, be favorable to the large-span bridge to realize bigger strideing across, make things convenient for constructor to debug, detect, repair, secondary coating or change maintenance car track roof beam simultaneously.
Description
Technical Field
The utility model relates to a bridge engineering technical field, in particular to stealthy track structure of large-span bridge tool car.
Background
Common main beam forms of the large-span bridge are a steel truss beam and a steel box girder. The steel box girder has the advantages of small height, light weight, large bearing capacity and small wind load, and has great competitiveness in the construction of super large span bridges. The flat steel box girder originally has a good pneumatic appearance, but the inspection and maintenance of the bottom of the girder needs to be carried out by an inspection vehicle, and the inspection vehicle needs to move in the longitudinal bridge direction of the rail beam of the inspection vehicle arranged at the bottom of the girder by a longitudinal bridge. The longitudinal bridge direction inspection vehicle track beam exposed at the bottom of the beam (the cross section is I-shaped generally) changes the aerodynamic shape of the main beam, so that the transverse wind load of the beam is increased, the wind resistance stability of the main beam can be reduced, particularly the vortex vibration resistance of the beam. If the maintenance car track can be hidden or partially hidden in the main beam, the adverse effects are obviously reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an invisible track structure of large-span bridge tool car to solve one or more technical problem that exist among the prior art, provide a profitable selection or create the condition at least.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides an invisible track structure of large-span bridge tool car, includes:
the steel box girder comprises a top plate, transverse partition plates, a web plate and a bottom plate, wherein the transverse partition plates are arranged in the steel box girder at intervals, two longitudinal through groove-shaped inner groove cavities are transversely arranged on the bottom plate, and the groove-shaped openings are formed by longitudinal ribs welded on the bottom plate;
the maintenance vehicle track beam is partially or completely hidden in the inner groove cavity, and an upper flange of the maintenance vehicle track beam is detachably connected with the diaphragm plate through a T-shaped connecting plate;
and the maintenance vehicle is arranged below the main beam of the steel box girder, and a running mechanism of the maintenance vehicle is supported on a lower flange of the track beam of the maintenance vehicle, so that the track beam of the maintenance vehicle is used as a running surface of the maintenance vehicle.
The track beam of the inspection vehicle exposed at the bottom of the beam is partially or completely hidden in the inner groove cavity at the bottom of the steel box girder, so that the influence of the track of the inspection vehicle exposed at the bottom of the beam on the pneumatic characteristic and stability of the girder of the long-span bridge is avoided, and the large span of the long-span bridge is realized. Because the bottom of the maintenance vehicle track beam and the bottom of the steel box girder main beam are detachably connected, the maintenance vehicle track beam can be conveniently debugged, detected, repaired, coated again or replaced by constructors.
As a further improvement of the technical scheme, the maintenance vehicle track beam and the diaphragm plate are connected by a T-shaped connecting plate, a notch is formed in one side, close to the diaphragm plate, of the upper portion of the inner groove cavity, a web plate of the T-shaped connecting plate penetrates through the notch and is detachably connected with the diaphragm plate, and a flange of the T-shaped connecting plate is detachably connected with an upper flange of the maintenance vehicle track beam. The track beam of the maintenance vehicle is connected to the diaphragm plate through the T-shaped connecting plate, so that the load on the maintenance vehicle is directly transmitted to the diaphragm plate, and the bearing capacity and the stability are improved. The reliable connection of tool car track roof beam and cross slab plays the horizontal bridge to the positioning action to the tool car, can not take place the card dead and vibrate during tool car lateral shifting, removes more smoothly steadily.
As a further improvement of the above technical scheme, the web and the flange of the T-shaped connecting plate are respectively provided with a plurality of first bolt holes and third bolt holes, the diaphragm plate is provided with second bolt holes corresponding to the first bolt holes, and the web of the T-shaped connecting plate penetrates through the notch and is connected with the second bolt holes on the diaphragm plate through high-strength bolts. The T-shaped connecting plate is convenient to mount and replace by adopting bolt connection, and the fatigue grade of the T-shaped connecting plate is obviously higher than that of welding connection.
As a further improvement of the above technical scheme, a fourth bolt hole corresponding to the third bolt hole is formed in the upper flange of the maintenance vehicle track beam, and the third bolt hole in the upper flange of the maintenance vehicle track beam is connected with the fourth bolt hole in the flange of the T-shaped connecting plate through a bolt. The installation and the replacement of the track beam are convenient by adopting bolt connection, the fatigue grade obviously higher than that of welding connection is achieved, and the high stress amplitude generated when the maintenance vehicle walks at the position adjacent to a welding seam and generates fatigue cracking to endanger the safety of the maintenance vehicle and personnel can be avoided. Meanwhile, the carrying and the transportation are convenient.
As a further improvement of the technical scheme, four first bolt holes and four third bolt holes are respectively formed in the flange and the web plate of the T-shaped connecting plate. The number of the first bolt holes and the number of the third bolt holes are four, so that better connection stability can be achieved, and trouble in installation or disassembly caused by too many bolts can be avoided.
As a further improvement of the technical scheme, the track beam of the maintenance vehicle is an I-shaped track beam of the maintenance vehicle. The I-shaped maintenance vehicle track beam is an existing profile steel product, can be matched with an existing maintenance vehicle for use, and is wide in application range.
As a further improvement of the technical scheme, the web plate comprises an upper inclined web plate and a lower inclined web plate, one end of the upper inclined web plate is connected with the top plate, the other end of the upper inclined web plate is connected with the lower inclined web plate, and the other end of the lower inclined web plate is connected with the bottom plate.
As a further improvement of the technical scheme, the groove-shaped openings are arranged on the two lateral sides of the bottom plate. The specific position and the design of the steel box girder are flexibly determined.
Drawings
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is a cross-sectional view of the present invention;
FIG. 2 is an enlarged schematic view of a portion A of FIG. 1;
fig. 3 is a schematic cross-sectional view taken along line B-B of fig. 2.
In the figure, 100-steel box girder, 110-top plate, 120-web plate, 121-upper inclined web plate, 122-lower inclined web plate, 130-bottom plate, 140-diaphragm plate, 141-second bolt hole, 150-groove-shaped opening, 160-longitudinal rib, 170-inner groove cavity, 200-maintenance car track beam, 210-fourth bolt hole, 300-maintenance car, 400-T-shaped connecting plate, 410-first bolt hole, 420-third bolt hole and 500-notch.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element 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 invention.
In the description of the present invention, if words such as "a plurality" are used, the meaning is one or more, the meaning of a plurality of words is two or more, and the meaning of more than, less than, more than, etc. is understood as not including the number, and the meaning of more than, less than, more than, etc. is understood as including the number.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1 to 3, in an embodiment of the present invention, a large-span invisible track structure of a bridge maintenance car includes a steel box girder 100, the steel box girder 100 includes a top plate 110, a diaphragm plate 140, a web 120 and a bottom plate 130, the diaphragm plate 140 is disposed inside the steel box girder 100 at regular intervals, the bottom plate 130 is transversely provided with two groove-shaped inner groove cavities 170 which are longitudinally through long, and the groove-shaped opening 150 is formed by longitudinal ribs welded on the bottom plate;
the maintenance vehicle track beam 200 is characterized in that part or all of the maintenance vehicle track beam 200 is arranged in the inner groove cavity 170, and the upper flange of the maintenance vehicle track beam 200 is detachably connected with the diaphragm 140 through a T-shaped connecting plate 400;
and an inspection vehicle 300 arranged below the steel box girder 100, wherein a running mechanism of the inspection vehicle 300 is supported on the upper flange of the inspection vehicle track beam 200, and the inspection vehicle track beam 200 is used as a running surface of the inspection vehicle 300.
In some embodiments, the connection between the maintenance vehicle track beam and the diaphragm is implemented by using a T-shaped connection plate 400, a notch 500 is formed above the inner groove cavity 170 and on one side close to the diaphragm 140, a web of the T-shaped connection plate 400 penetrates through the notch 500 and is detachably connected with the diaphragm 140, and a flange of the T-shaped connection plate 400 is detachably connected with an upper flange of the maintenance vehicle track beam 200. The T-shaped connecting plate 400 may also be a connecting plate of other shapes, such as a double angle steel, and the T-shaped connecting plate 400 is used in consideration of the large force-bearing area of the flange of the T-shaped connecting plate 400 and the capability of splicing two different objects at the same time.
In some embodiments, the flange and the web of the T-shaped connection plate 400 are respectively provided with a plurality of first bolt holes 410 and a plurality of third bolt holes 420, the diaphragm plate 140 is provided with a second bolt hole 141 corresponding to the first bolt hole 410 of the web of the T-shaped connection plate 400, and the web of the T-shaped connection plate 400 penetrates through the notch 500 and is connected with the bolt of the web of the diaphragm plate 140. The connection of the T-shaped connection plate 400 to the diaphragm 140 may be by other means, such as welding, clamping, etc., and the use of bolted connections facilitates the installation and replacement of the T-shaped connection plate 400, and has a fatigue rating significantly higher than that of welded connections.
In some embodiments, the upper flange of the access car track beam 200 is provided with a fourth bolt hole 210 corresponding to the third bolt hole 420 on the flange of the T-shaped connection plate 400, and the upper flange of the access car track beam 200 is bolted to the flange of the T-shaped connection plate 400. The connection between the maintenance vehicle track beam 200 and the T-shaped connecting plate 400 can be connected in other modes, the maintenance vehicle track beam 200 can be conveniently installed and replaced by adopting bolt connection, the fatigue grade obviously higher than that of welding connection is achieved, and the phenomenon that the maintenance vehicle 300 walks to generate high stress amplitude at the position close to a welding seam to generate fatigue cracking to endanger the safety of the maintenance vehicle 300 and personnel can be avoided.
In some embodiments, the web and the flange of the T-shaped connecting plate 400 are respectively provided with four first bolt holes 410 and four fourth bolt holes 210. The quantity of bolt hole also can be designed into two, three, four or more, but the convenience and the connection stability of installation and dismantlement are taken into comprehensive consideration, adopt four holes to be rectangle four corners and arrange, can reach the connection stability of preferred, also can not spend a lot of time when construction bolt or dismantlement simultaneously.
In some embodiments, the maintenance vehicle rail beam 200 is an i-shaped maintenance vehicle rail beam 200. Of course, other shapes of the maintenance vehicle track beam 200 may be used, and the i-shaped track beam is selected in consideration of the fact that the existing maintenance vehicle 300 is usually used together with the i-shaped track beam.
In some embodiments, the web 120 includes an upper diagonal web 121 and a lower diagonal web 122, the upper diagonal web 121 is connected to the top plate 110 at one end, the lower diagonal web 122 at the other end, and the lower diagonal web 122 is connected to the bottom plate 130 at the other end.
In some embodiments, the slot-shaped openings 150 are disposed on both lateral sides of the bottom plate 130, but the specific locations may be determined according to the actual conditions of the box girder.
The utility model discloses an installation method: manufacturing the steel box girder 100 in a factory according to the existing method, and reserving a notch 500 above the inner groove cavity 170 at the bottom of the steel box girder 100 and on one side close to the diaphragm 140; prefabricating a T-shaped connecting plate and the maintenance vehicle track beam 200, aligning a third bolt hole 420 of a flange of the T-shaped connecting plate with a fourth bolt hole 210 on the maintenance vehicle track beam 200, and locking and fixing by using bolts; after the steel box girder main beam 100 is installed in a bridge, the maintenance vehicle track beam 200 is hung to the bottom of the steel box girder main beam 100, a T-shaped connecting plate web plate connected with the maintenance vehicle track beam 200 penetrates through the notch 500, the first bolt hole 410 of the T-shaped connecting plate web plate is aligned to the second bolt hole 141 reserved on the web plate of the diaphragm plate 140 and is locked by bolts, and the notch 500 is sealed by sealing materials.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.
Claims (8)
1. The utility model provides an invisible track structure of large-span bridge tool car which characterized in that includes:
the steel box girder comprises a top plate, transverse partition plates, a web plate and a bottom plate, wherein the transverse partition plates are arranged in the steel box girder at intervals, two longitudinal through groove-shaped inner groove cavities are transversely arranged on the bottom plate, and groove-shaped openings are formed by longitudinal ribs welded on the bottom plate;
the maintenance vehicle track beam is partially or completely hidden in the inner groove cavity, and an upper flange of the maintenance vehicle track beam is detachably connected with the diaphragm plate through a T-shaped connecting plate;
and the maintenance vehicle is arranged below the main beam of the steel box girder, and a running mechanism of the maintenance vehicle is supported on a lower flange of the track beam of the maintenance vehicle, so that the track beam of the maintenance vehicle is used as a running surface of the maintenance vehicle.
2. The invisible track structure of the large-span bridge maintenance vehicle of claim 1, wherein the maintenance vehicle track beam is connected with the diaphragm plate by a T-shaped connecting plate, a notch is formed above the inner groove cavity and on one side close to the diaphragm plate, a web of the T-shaped connecting plate penetrates through the notch and is detachably connected with the diaphragm plate, and a flange of the T-shaped connecting plate is detachably connected with an upper flange of the maintenance vehicle track beam.
3. The invisible track structure of the large-span bridge maintenance vehicle of claim 2, wherein a web plate and a flange of the T-shaped connecting plate are respectively provided with a plurality of first bolt holes and third bolt holes, the diaphragm plate is provided with second bolt holes corresponding to the first bolt holes, and the web plate of the T-shaped connecting plate penetrates through the notch and is connected with the second bolt holes of the diaphragm plate through high-strength bolts.
4. The invisible rail structure of the large-span bridge maintenance vehicle of claim 3, wherein a fourth bolt hole corresponding to the third bolt hole is formed in the upper flange of the maintenance vehicle rail beam, and the fourth bolt hole in the upper flange of the maintenance vehicle rail beam is in bolt connection with the third bolt hole in the flange of the T-shaped connecting plate.
5. The invisible track structure of the large-span bridge maintenance vehicle of claim 3, wherein four first bolt holes and four third bolt holes are respectively formed in a web plate and a flange of the T-shaped connecting plate.
6. The invisible track structure of the large-span bridge inspection vehicle of claim 1, wherein the inspection vehicle track beam is an I-shaped inspection vehicle track beam.
7. The invisible track structure of the large-span bridge maintenance vehicle of claim 1, wherein the web comprises an upper inclined web and a lower inclined web, one end of the upper inclined web is connected with the top plate, the other end of the upper inclined web is connected with the lower inclined web, and the other end of the lower inclined web is connected with the bottom plate.
8. The invisible track structure of the large-span bridge inspection vehicle of claim 7, wherein the slot-shaped openings are disposed on both lateral sides of the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022230831.1U CN214089465U (en) | 2020-10-09 | 2020-10-09 | Invisible track structure of large-span bridge maintenance car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022230831.1U CN214089465U (en) | 2020-10-09 | 2020-10-09 | Invisible track structure of large-span bridge maintenance car |
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| Publication Number | Publication Date |
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| CN214089465U true CN214089465U (en) | 2021-08-31 |
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| CN202022230831.1U Active CN214089465U (en) | 2020-10-09 | 2020-10-09 | Invisible track structure of large-span bridge maintenance car |
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- 2020-10-09 CN CN202022230831.1U patent/CN214089465U/en active Active
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