CN219690289U - Telescopic bridge beam falling prevention device - Google Patents
Telescopic bridge beam falling prevention device Download PDFInfo
- Publication number
- CN219690289U CN219690289U CN202320521170.9U CN202320521170U CN219690289U CN 219690289 U CN219690289 U CN 219690289U CN 202320521170 U CN202320521170 U CN 202320521170U CN 219690289 U CN219690289 U CN 219690289U
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- plate
- stiffening rib
- rib plates
- plates
- web
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- 230000002265 prevention Effects 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 238000012946 outsourcing Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to a telescopic bridge beam falling prevention device. The existing beam falling prevention means only have the problems of buffer effect, no support of vertical load when the bridge falls, and the like. The device is positioned at the beam ends of two adjacent hole beam bodies and is arranged between the flange and the web plate at one side of the beam body; the device comprises a plurality of stiffening rib plates and a plurality of connecting rods; the plurality of stiffening rib plates are respectively positioned at two sides of the expansion joint of the two hole beam bodies, and the top and the inner side of the stiffening rib plates are respectively fixed at the bottom surface of the flange and the outer side of the web plate; the connecting rod holes are arranged on the stiffening rib plates, and the connecting rods penetrate through the connecting rod holes of the stiffening rib plates to connect the stiffening rib plates into a whole. The utility model has reasonable structural design, can bear the vertical load of the bridge when the bridge falls through the mode that the connecting rod passes through the stiffening rib plate, can effectively avoid the risk of the bridge falling, can meet the telescopic requirement of the bridge at the beam end, and has flexible arrangement.
Description
Technical Field
The utility model relates to the technical field of bridge reinforcement and emergency rescue, in particular to a telescopic bridge beam falling prevention device.
Background
The bridge drop beam is the condition that the beam structure in the bridge structure breaks or deforms in the using process, so that the bridge is invalid or partially invalid. The bridge falls for a variety of reasons, the most common of which is excessive displacement of the bridge superstructure. In addition, the bridge has overlong service life and improper maintenance, and the bridge can fall down. In order to avoid bridge beam falling accidents, the design, construction and maintenance management of the bridge are required to be enhanced, and the safety and reliability of the bridge are ensured.
The bridge falls the roof beam and is one of the factors that the bridge collapses, in order to effectively avoid the bridge to fall the roof beam accident, has adopted numerous anti-falling roof beam designs and measures at present, mainly includes: (1) keeping a certain distance from the bridge end to the pier cap or the capping beam during bridge design; (2) when designing a bridge, a limiting device is arranged between the beam body and the pier cap or the capping beam, for example, an anchor rod or a pin is arranged to limit the longitudinal deflection of the beam body; (3) the connecting rod mode is arranged in bridge operation to limit the longitudinal deflection of the beam body. Therefore, the traditional measures for preventing the bridge from falling off mainly adopt a mode of arranging a connecting rod to limit the longitudinal deflection of the bridge body, including a mode of arranging a steel plate limiting device, a mode of preventing the bridge from falling off a buffer chain and the like, and the measures have a plurality of problems in the implementation process, such as only playing a role in buffering the bridge falling off the bridge, not supporting the vertical load when the bridge falls off the bridge, and more effective measures for preventing the bridge from falling off are required to be proposed to overcome the defects.
Disclosure of Invention
The utility model aims to provide a telescopic bridge girder falling prevention device, which solves the problems that the existing girder falling prevention means only can play a role in buffering and cannot support the vertical load when a bridge falls.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the telescopic bridge beam falling prevention device is positioned at the beam ends of two adjacent hole beam bodies and is arranged between a flange and a web plate at one side of the beam bodies;
the device comprises a plurality of stiffening rib plates and a plurality of connecting rods; the plurality of stiffening rib plates are respectively positioned at two sides of the expansion joint of the beam body with two holes, and the top and the inner side of the stiffening rib plates are respectively fixed at the bottom surface of the flange and the outer side of the web plate; the connecting rod holes are formed in the stiffening rib plates, and the connecting rods penetrate through the connecting rod holes of the stiffening rib plates to connect the stiffening rib plates into a whole.
Further, the stiffening rib plate comprises a vertical plate, an outer wrapping rib plate, a flange connecting rib plate and a web connecting rib plate;
the vertical plate is vertically arranged with the flange and the web, the outer wrapping rib plate is arranged on the outer side and the bottom of the vertical plate and is vertical to the vertical plate, the flange connecting rib plate is arranged on the top of the vertical plate and is vertical to the vertical plate, and the web connecting rib plate is arranged on the inner side of the vertical plate and is vertical to the vertical plate.
Further, bolt holes are formed in the flange connection rib plates and the web connection rib plates, and the flange connection rib plates and the web connection rib plates are respectively fixed on the flange and the web through installing bolts at the bolt holes.
Further, a fixing nut is arranged at one end of the connecting rod and is fixed at one side of one stiffening rib plate;
the other end of the connecting rod is provided with a check bolt which is fixed on the other side of the stiffening rib plate, and the distance between the two stiffening rib plates is adjusted by adjusting the position of the check bolt on the connecting rod, so that the change of the width of the expansion joint is adapted.
Further, the stiffening rib plates are of steel structures, and the vertical plates, the outer wrapping rib plates, the flange connection rib plates and the web connection rib plates are all steel plates and are mutually welded and connected.
Further, the top of the flange connection rib and the inner side of the web connection rib are coated with an adhesive.
Or, the stiffening rib plate is of a concrete prefabricated structure, and the vertical plate, the outer rib plate, the flange connection rib plate and the web connection rib plate are integrally cast and prefabricated in a vertical mold.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model has reasonable structural design, definite stress, easy installation, light dead weight of the steel structure and small influence on the dead weight of the upper structure beam body. The connecting rod passes through the stiffening rib plates, so that the vertical load of the bridge during girder falling can be borne, and the risk of girder falling of the bridge can be effectively avoided. The stiffening rib plates and the connecting rods bear vertical loads of the upper structure, and the upper structure is close to a cantilever beam structure with one fixed end and one free end.
In addition, the utility model can bear the vertical load of the girder body during girder falling, can meet the telescopic requirement of the bridge at the girder end, has flexible arrangement, and can adjust the number of bolts, the size of stiffening rib plates, the thickness of the steel plate and the size of the connecting rod according to different upper structure vertical loads.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other embodiments of the drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a link structure diagram of the present utility model.
Fig. 2 is a structural view of a stiffening rib of the present utility model.
Fig. 3 is a schematic view of the installation of the present utility model on a beam.
The marks in the figure are as follows:
the steel plate comprises a 1-connecting rod, a 2-fixing nut, a 3-lockbolt, a 4-vertical plate, a 5-wrapping rib plate, a 6-flange connecting rib plate, a 7-connecting rod hole, an 8-gasket, a 9-bolt, a 10-beam body and a 11-web connecting rib plate.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
In the description of this patent, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "longitudinal," "transverse," "top," "bottom," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely for convenience in describing the patent and simplifying the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the patent.
In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "disposed," and the like are to be construed broadly and may be fixedly connected, disposed, detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.
In the specific embodiment, the method comprises the following steps: defining one side of the stiffening rib plate, which is close to the beam body, as an inner side, and defining one side of the stiffening rib plate, which is far from the beam body, as an outer side; the direction of the beam length is defined as the longitudinal direction, and the direction perpendicular to the beam length is defined as the transverse direction.
As shown in fig. 1 and 2, the utility model provides a telescopic bridge girder falling prevention device, which comprises a plurality of stiffening rib plates and a plurality of connecting rods 1, wherein the stiffening rib plates are longitudinally parallel to each other and are longitudinally connected in series through the connecting rods 1. As shown in fig. 3, the device is located at the beam ends of two adjacent hole beams 10 and is disposed between the flanges and webs on one lateral side of the beam 10. The plurality of stiffening rib plates are respectively positioned at two sides of the expansion joint of the two hole beam bodies 10, and the top and the inner side of the stiffening rib plates are respectively fixed at the bottom surface of the flange and the outer side of the web plate. The connecting rod holes 7 are arranged on the stiffening rib plates, and the connecting rods 1 penetrate through the connecting rod holes 7 of the stiffening rib plates to connect the stiffening rib plates into a whole.
As shown in fig. 2, the stiffening rib plate comprises a vertical plate 4, an outer wrapping rib plate 5, a flange connection rib plate 6 and a web connection rib plate 11, wherein the outer wrapping rib plate 5, the flange connection rib plate 6 and the web connection rib plate 11 form the stiffening rib of the vertical plate 4 at the periphery of the vertical plate 4, and the stability of the whole structure of the stiffening rib plate is improved. The vertical plates 4 are vertically arranged with the flanges and the web plates, so that a stiffening rib structure on the side face of the beam body 10 is formed, and the stability of the whole structure of the beam body 10 is improved. The outsourcing floor 5 sets up in the outside and the bottom of vertical board 4 and with vertical board 4 vertically, and flange connection floor 6 sets up at the top of vertical board 4 and with vertical board 4 vertically, and web connection floor 11 sets up in the inboard of vertical board 4 and with vertical board 4 vertically.
The flange connection rib plate 6 and the web connection rib plate 11 are connection members where the stiffening rib plate is connected to the beam body 10, and are both provided with bolt holes, and the flange connection rib plate 6 and the web connection rib plate 11 are respectively fixed on the flange and the web by installing bolts 9 at the bolt holes.
As shown in fig. 1, a fixing nut 2 is installed at one end of a connecting rod 1 and is fixed at one side of one stiffening rib plate, a locking bolt 3 is installed at the other end of the connecting rod 1 and is fixed at the other side of the other stiffening rib plate, and the distance between the two stiffening rib plates is adjusted by adjusting the position of the locking bolt 3 on the connecting rod 1 so as to adapt to the change of the width of an expansion joint.
The stiffening rib plate can adopt a steel structure or a concrete structure:
1. when the stiffening rib plate is of a steel structure, the dead weight is lighter, and the vertical plate 4, the outer rib plate 5, the flange connection rib plate 6 and the web connection rib plate 11 are all steel plates and are mutually welded and connected. The top of the flange connection rib 6 and the inner side of the web connection rib 11 can be coated with an adhesive, and the adhesive is adhered to the side surface of the beam body 10 to play a fixing role together with the bolts 9.
2. If the vertical load of the upper structure is too large, the stiffening rib plate can be replaced by a concrete rib plate under the condition that the stress and deformation of the stiffening rib plate cannot be met. When the stiffening rib plate is of a concrete prefabricated structure, the vertical plate 4, the outer rib plate 5, the flange connection rib plate 6 and the web connection rib plate 11 are integrally cast and prefabricated in a vertical mold. The side face of the beam body 10 can be preset with a connecting steel plate and a bolt hole, and the stiffening rib plate is connected to the preset connecting steel plate and the preset bolt hole on the side face of the beam body 10 through a bolt 9, so that fixation is realized.
In one embodiment, two ends of two adjacent hole beam bodies 10 are respectively provided with a stiffening rib plate, four connecting rod holes are uniformly arranged on the stiffening rib plates from top to bottom, the stiffening rib plates positioned at two sides of the expansion joint are mutually connected through four connecting rods 1, and a fixing nut 2 at one end and a check bolt 3 at the other end are arranged. When the width of the expansion joint changes, the change of the width of the expansion joint can be adapted by changing the position of the lockbolt 3 on the connecting rod 1.
In other embodiments, the number of stiffening ribs on two sides of the expansion joint can be multiple, and the number of the connecting rods 1 can be adjusted according to actual requirements.
The device is a beam falling preventing device arranged at the expansion joint of two adjacent beam bodies 10 with two holes, a plurality of longitudinal stiffening rib plates parallel to each other are longitudinally connected in series through a plurality of connecting rods 1, can bear the vertical load of a bridge during beam falling, can prevent the two beam bodies 10 with two holes from transversely shifting, and plays a role in preventing the beam falling while reinforcing. In addition, through adjusting locknut for the distance between the stiffening rib plate of device can be vertically adjusted, makes whole structure have flexible function, sets up flexible volume according to bridge superstructure longitudinal deformation value, has adapted to the change of expansion joint width.
The foregoing description of the utility model has been presented for purposes of illustration and description, and is not intended to be limiting. Several simple deductions, modifications or substitutions may also be made by a person skilled in the art to which the utility model pertains, based on the idea of the utility model.
Claims (7)
1. The utility model provides a roof beam device falls in telescopic bridge which characterized in that:
the device is positioned at the beam ends of two adjacent hole beam bodies (10) and is arranged between the flange and the web plate at one side of the beam body (10);
the device comprises a plurality of stiffening rib plates and a plurality of connecting rods (1); the stiffening rib plates are respectively positioned at two sides of the expansion joint of the beam body (10) with two holes, and the top and the inner side of the stiffening rib plates are respectively fixed at the bottom surface of the flange and the outer side of the web plate; the stiffening rib plates are provided with connecting rod holes (7), and the connecting rods (1) penetrate through the connecting rod holes (7) of the stiffening rib plates to connect the stiffening rib plates into a whole.
2. The telescopic bridge beam drop prevention device according to claim 1, wherein:
the stiffening rib plates comprise vertical plates (4), outer rib plates (5), flange connection rib plates (6) and web connection rib plates (11);
the vertical plate (4) with the edge of a wing with the web is all arranged perpendicularly, outsourcing floor (5) set up the outside and the bottom of vertical plate (4) and with vertical plate (4) are perpendicular, edge of a wing connection floor (6) set up the top of vertical plate (4) and with vertical plate (4) are perpendicular, web connection floor (11) set up the inboard of vertical plate (4) and with vertical plate (4) are perpendicular.
3. The telescopic bridge beam drop prevention device according to claim 2, wherein:
the flange connection rib plate (6) and the web connection rib plate (11) are respectively provided with bolt holes, and the flange connection rib plate (6) and the web connection rib plate (11) are respectively fixed on the flange and the web through installing bolts (9) at the bolt holes.
4. A telescopic bridge girder anti-drop device according to claim 3, wherein:
one end of the connecting rod (1) is provided with a fixing nut (2) which is fixed on one side of one stiffening rib plate;
the locking bolt (3) is installed at the other end of the connecting rod (1), and is fixed on the other side of the other stiffening rib plate, and the distance between the two stiffening rib plates is adjusted by adjusting the position of the locking bolt (3) on the connecting rod (1), so that the locking bolt is suitable for the change of the width of an expansion joint.
5. The telescopic bridge beam drop prevention device according to claim 4, wherein:
the stiffening rib plates are of steel structures, and the vertical plates (4), the outer wrapping rib plates (5), the flange connection rib plates (6) and the web connection rib plates (11) are all steel plates and are mutually welded and connected.
6. The telescopic bridge beam drop prevention device according to claim 5, wherein:
the top of the flange connection rib plate (6) and the inner side of the web connection rib plate (11) are coated with adhesive.
7. The telescopic bridge beam drop prevention device according to claim 4, wherein:
the stiffening rib plate is of a concrete prefabricated structure, and the vertical plate (4), the outer rib plate (5), the flange connection rib plate (6) and the web connection rib plate (11) are integrally cast and prefabricated in a vertical mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320521170.9U CN219690289U (en) | 2023-03-17 | 2023-03-17 | Telescopic bridge beam falling prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320521170.9U CN219690289U (en) | 2023-03-17 | 2023-03-17 | Telescopic bridge beam falling prevention device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219690289U true CN219690289U (en) | 2023-09-15 |
Family
ID=87969129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320521170.9U Active CN219690289U (en) | 2023-03-17 | 2023-03-17 | Telescopic bridge beam falling prevention device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219690289U (en) |
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2023
- 2023-03-17 CN CN202320521170.9U patent/CN219690289U/en active Active
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