CN215887892U - Gradable limiting bridge supporting and blocking structure - Google Patents
Gradable limiting bridge supporting and blocking structure Download PDFInfo
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- CN215887892U CN215887892U CN202122328470.9U CN202122328470U CN215887892U CN 215887892 U CN215887892 U CN 215887892U CN 202122328470 U CN202122328470 U CN 202122328470U CN 215887892 U CN215887892 U CN 215887892U
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Abstract
The utility model discloses a graded limiting bridge retaining structure which comprises retaining components arranged on two sides of a main beam, wherein the lower end of each retaining component is connected to the upper end of a cover beam; the supporting and blocking assembly comprises a supporting and blocking inner side steel plate and a supporting and blocking outer side steel plate, the supporting and blocking inner side steel plate is sequentially provided with a first vertical surface, an inner concave curved surface and a second vertical surface from bottom to top, and a limiting chain is arranged between the supporting and blocking outer side steel plate and the flange of the main beam. In the utility model, the first vertical surface carries out transverse limit on the main beam in small or middle earthquakes; the concave curved surface enables the kinetic energy of the main beam to be converted into potential energy, and energy consumption is achieved; the second vertical surface and the limiting chain limit the allowable limit displacement of the main beam; the steel plate has good ductility, and can be recovered after elastic deformation, so that the retaining structure is not damaged, and the recovery work of the retaining structure is reduced.
Description
Technical Field
The utility model relates to the field of bridges, in particular to a graded limiting bridge retaining structure.
Background
In high-intensity earthquake areas in China, bridges are influenced by earthquakes to generate transverse displacement, and in order to control the transverse displacement of the bridges, designers often set stop blocks on two sides of a main beam. At present, the working principle of the stop block is as follows: under the condition of small or medium earthquake, the stop block effectively restrains the main beam and keeps elasticity; under the condition of large earthquake, the beam body and the stop block are obviously collided, and energy consumption is realized through the damage of the stop block. However, when the block is damaged, a large repair workload and repair cost are generated, and the traffic opening time is delayed.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides a graded limiting bridge retaining structure for improving the stress of a retaining block.
In order to achieve the purpose of the utility model, the technical scheme adopted by the utility model is as follows:
the graded limiting bridge retaining structure comprises retaining components arranged on two sides of a main beam, wherein the lower end of each retaining component is connected to the upper end of a cover beam; the supporting and blocking assembly comprises a supporting and blocking inner side steel plate and a supporting and blocking outer side steel plate, the supporting and blocking inner side steel plate is sequentially provided with a first vertical surface, an inner concave curved surface and a second vertical surface from bottom to top, and a limiting chain is arranged between the supporting and blocking outer side steel plate and the flange of the main beam.
The beneficial effects of adopting the above technical scheme are: when a small earthquake or a medium earthquake occurs, the first vertical surface carries out transverse limiting on the main beam, namely primary limiting is carried out; when a large earthquake occurs, the first vertical surface is influenced by the main beam to be transversely bent, and the beam body gradually moves upwards along the concave curved surface along with the increase of deformation, so that the kinetic energy of the beam body is converted into potential energy, namely, the energy consumption is realized through the concave curved surface, and the safety of the retaining structure is ensured; the second vertical surface limits the main beam to move upwards further, namely secondary limiting is carried out; the limiting chain is used for controlling the transverse displacement of the main beam, and when the main beam displacement reaches the allowed limit displacement, the limiting chain is tightened.
Furthermore, the two ends of the supporting and blocking inner steel plate and the supporting and blocking outer steel plate are connected through supporting and blocking side webs, and supporting and blocking top plates and embedded steel plates are connected above and below the supporting and blocking inner steel plate, the supporting and blocking outer steel plate and the supporting and blocking side webs respectively.
The beneficial effects of adopting the above technical scheme are: the supporting and blocking inner side steel plate and the supporting and blocking outer side steel plate are connected with the supporting and blocking side web plate, the supporting and blocking top plate and the embedded steel plate, so that a closed space is formed, and parts in the closed space are prevented from rusting.
Furthermore, the side surface of the steel plate at the inner side of the supporting baffle is connected with a plurality of supporting baffle stiffening plates, the plurality of supporting baffle stiffening plates are connected with a transverse stiffening plate and a vertical stiffening plate, and the lower parts of the supporting baffle stiffening plates and the vertical stiffening plates are in contact with the embedded steel plate.
The beneficial effects of adopting the above technical scheme are: the supporting and blocking stiffening plates, the transverse stiffening plates and the vertical stiffening plates provide enough rigidity for the supporting and blocking inner steel plates, so that the horizontal acting force transmitted by the main beam is resisted, and the acting force can be transmitted to the embedded steel plates.
Furthermore, a supporting and retaining stiffening plate is welded on the steel plate on the inner side of the supporting and retaining plate, and a transverse stiffening plate and a vertical stiffening plate are welded on the supporting and retaining stiffening plate.
The beneficial effects of adopting the above technical scheme are: the welded structure has good rigidity, and is favorable for resisting the horizontal acting force transmitted by the main beam.
Furthermore, the embedded anchor bars are connected to the lower portions of the embedded steel plates, the embedded steel plates and the embedded anchor bars are arranged in the cover beam, and the upper end faces of the embedded steel plates are parallel to or higher than the upper end faces of the cover beam.
The beneficial effects of adopting the above technical scheme are: the embedded steel plate and the embedded anchor bars are arranged in the bent cap, so that the horizontal acting force can be effectively transmitted to the bent cap by the retaining structure and finally transmitted to the bridge pier; the upper end face of the embedded steel plate is parallel to or higher than the upper end face of the cover beam, and the supporting and blocking inner side steel plate, the supporting and blocking outer side steel plate and the supporting and blocking side web plate are conveniently connected.
Furthermore, a supporting and blocking side web is welded on the supporting and blocking inner side steel plate and the supporting and blocking outer side steel plate, and a supporting and blocking top plate and an embedded steel plate are welded on the supporting and blocking inner side steel plate, the supporting and blocking outer side steel plate and the supporting and blocking side web.
The beneficial effects of adopting the above technical scheme are: the welding tightness is good, and a closed space with good tightness can be formed by the supporting and retaining inner steel plate, the supporting and retaining outer steel plate, the supporting and retaining side web plate, the supporting and retaining top plate and the embedded steel plate; the welded structure has good rigidity, and is favorable for resisting the horizontal acting force transmitted by the main beam.
The utility model has the beneficial effects that: the first vertical surface carries out transverse limit on the main beam in small or medium earthquakes; the concave curved surface enables the kinetic energy of the main beam to be converted into potential energy, and energy consumption is achieved; the second vertical surface and the limiting chain limit the allowable limit displacement of the main beam; the steel plate has good ductility, and can be recovered after elastic deformation, so that the retaining structure is not damaged, and the recovery work of the retaining structure is reduced.
Drawings
FIG. 1 is a schematic view of the installation of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;
FIG. 4 is a schematic structural view of an inner steel plate of the retaining member of the present invention;
the main beam comprises a main beam flange 1, a main beam flange 2, a limiting chain 3, a supporting and blocking outer side steel plate 4, a cover beam 5, a pier 6, reinforced section steel 7, a supporting and blocking inner side steel plate 701, a first vertical surface 702, an inner concave curved surface 703, a second vertical surface 8, a main beam 9, a supporting and blocking top plate 10, a transverse stiffening plate 11, a pre-embedded steel plate 12, a pre-embedded anchor bar 13, a vertical stiffening plate 14, a supporting and blocking stiffening plate 15 and a supporting and blocking side web plate.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the utility model as defined and defined in the appended claims, and all changes that come within the meaning and range of equivalency of the claims are to be embraced therein.
As shown in fig. 1-4, a bridge retaining structure capable of being limited in a grading manner comprises retaining components arranged on two sides of a main beam 8, wherein the lower ends of the retaining components are connected to the upper ends of cover beams 4; the supporting and blocking assembly comprises an inner supporting and blocking steel plate 7 and an outer supporting and blocking steel plate 3, the inner supporting and blocking steel plate 7 is sequentially provided with a first vertical surface 701, an inner concave curved surface 702 and a second vertical surface 703 from bottom to top, and a limiting chain 2 is arranged between the outer supporting and blocking steel plate 3 and a main beam flange 1.
When a small earthquake or a medium earthquake occurs, the first vertical surface 701 performs transverse limiting on the main beam 8, namely primary limiting; when a large earthquake occurs, the first vertical surface 701 is influenced by the main beam 8 to be transversely bent, and the beam body gradually moves upwards along the concave curved surface 702 along with the increase of deformation, so that the kinetic energy of the beam body is converted into potential energy, namely, the energy consumption is realized through the concave curved surface 702, and the safety of the retaining structure is ensured; the second vertical surface 703 limits the main beam 8 from moving further upwards, namely, secondary limiting is carried out; the limiting chain 2 is used for controlling the transverse displacement of the main beam 8, and when the displacement of the main beam 8 reaches the allowable limit displacement, the limiting chain 2 is tightened; reinforcing steel 6 can be arranged on two sides of the main beam 8 to reduce damage to the main beam 8 during earthquake.
As an optional embodiment, two ends of the supporting and retaining inner steel plate 7 and the supporting and retaining outer steel plate 3 are connected through a supporting and retaining side web 15, and a supporting and retaining top plate 9 and an embedded steel plate 11 are respectively connected above and below the supporting and retaining inner steel plate 7, the supporting and retaining outer steel plate 3 and the supporting and retaining side web 15. The supporting baffle inner side steel plate 7 and the supporting baffle outer side steel plate 3 are connected with the supporting baffle side web 15, the supporting baffle top plate 9 and the embedded steel plate 11, so that a closed space is formed, and parts in the closed space are prevented from rusting; the supporting and retaining side web 15 and the supporting and retaining top plate 9 are also steel plates which are ductile and can still recover after elastic deformation.
As an optional implementation mode, the side surface of the inner steel plate 7 of the supporting baffle is connected with a plurality of supporting baffle stiffening plates 14, the plurality of supporting baffle stiffening plates 14 are connected with a transverse stiffening plate 10 and a vertical stiffening plate 13, and the lower parts of the supporting baffle stiffening plates 14 and the vertical stiffening plates 13 are in contact with the embedded steel plate 11; the supporting and retaining stiffening plates 14, the transverse stiffening plates 10 and the vertical stiffening plates 13 provide enough rigidity for the supporting and retaining inner steel plates 7, so that the horizontal acting force transmitted by the main beam 8 is resisted, and the acting force can be transmitted to the embedded steel plates 11.
As an optional implementation mode, the supporting and retaining stiffening plates 14 are welded on the supporting and retaining inner steel plates 7, and the transverse stiffening plates 10 and the vertical stiffening plates 13 are welded on the supporting and retaining stiffening plates 14; the welded structure has good rigidity, and is favorable for resisting the horizontal acting force transmitted by the main beam 8.
As an optional implementation manner, the lower part of the embedded steel plate 11 is connected with the embedded anchor bars 12, the embedded steel plate 11 and the embedded anchor bars 12 are both arranged in the bent cap 4, and the upper end surface of the embedded steel plate 11 is parallel to or higher than the upper end surface of the bent cap 4; the embedded steel plates 11 and the embedded anchor bars 12 are arranged in the bent cap 4, so that the horizontal acting force can be effectively transmitted to the bent cap 4 by the retaining structure and finally transmitted to the bridge pier 5; the upper end face of the embedded steel plate 11 is parallel to or higher than the upper end face of the bent cap 4, and the supporting and blocking inner side steel plate 7, the supporting and blocking outer side steel plate 3 and the supporting and blocking side web 15 are conveniently connected.
As an optional embodiment, the supporting and retaining side web 15 is welded on the supporting and retaining inner steel plate 7 and the supporting and retaining outer steel plate 3, and the supporting and retaining top plate 9 and the embedded steel plate 11 are welded on the supporting and retaining inner steel plate 7, the supporting and retaining outer steel plate 3 and the supporting and retaining side web 15; the welding tightness is good, and a closed space with good tightness can be formed by the supporting and retaining inner steel plate 7, the supporting and retaining outer steel plate 3, the supporting and retaining side web plate 15, the supporting and retaining top plate 9 and the embedded steel plate 11; the welded structure has good rigidity, and is favorable for resisting the horizontal acting force transmitted by the main beam 8.
As an optional implementation manner, before construction, the supporting and retaining inner steel plate 7, the supporting and retaining outer steel plate 3, the supporting and retaining side web 15, the supporting and retaining top plate 9, the supporting and retaining stiffening plate 14, the vertical stiffening plate 13 and the horizontal stiffening plate 10 are welded into an integrated shaped product, on-site construction only needs to pre-embed the pre-embedded steel plates 11 and the pre-embedded anchor bars 12 in advance when the cover beam 4 is poured, and the shaped product is welded on the pre-embedded steel plates 11 after the cover beam 4 is constructed, so that the construction efficiency is improved.
Claims (6)
1. The graded limiting bridge supporting and blocking structure is characterized by comprising supporting and blocking components arranged on two sides of a main beam (8), wherein the lower ends of the supporting and blocking components are connected to the upper end of a cover beam (4); the supporting and blocking assembly comprises a supporting and blocking inner side steel plate (7) and a supporting and blocking outer side steel plate (3), the supporting and blocking inner side steel plate (7) is sequentially provided with a first vertical surface (701), an inner concave curved surface (702) and a second vertical surface (703) from bottom to top, and a limiting chain (2) is arranged between the supporting and blocking outer side steel plate (3) and a main beam flange (1).
2. The graded limiting bridge supporting and blocking structure according to claim 1, wherein two ends of the supporting and blocking inner steel plate (7) and the supporting and blocking outer steel plate (3) are connected through supporting and blocking side webs (15), and supporting and blocking top plates (9) and embedded steel plates (11) are connected above and below the supporting and blocking inner steel plate (7), the supporting and blocking outer steel plate (3) and the supporting and blocking side webs (15) respectively.
3. The graded limiting bridge supporting and blocking structure according to claim 2, characterized in that the side surface of the supporting and blocking inner steel plate (7) is connected with a plurality of supporting and blocking stiffening plates (14), the plurality of supporting and blocking stiffening plates (14) are connected with a transverse stiffening plate (10) and a vertical stiffening plate (13), and the lower parts of the supporting and blocking stiffening plates (14) and the vertical stiffening plate (13) are in contact with the embedded steel plate (11).
4. The scalable limited bridge supporting structure according to claim 3, characterized in that the supporting inner steel plate (7) is welded with supporting stiffening plates (14), and the supporting stiffening plates (14) are welded with transverse stiffening plates (10) and vertical stiffening plates (13).
5. The scalable spacing bridge retaining structure of claim 2, characterized in that pre-buried anchor bars (12) are connected to the below of pre-buried steel plate (11), pre-buried steel plate (11) and pre-buried anchor bars (12) all set up in bent cap (4), and the up end of pre-buried steel plate (11) is parallel to or is higher than the up end of bent cap (4).
6. The scalable spacing bridge supporting structure of claim 2, characterized in that the supporting inner steel plate (7) and the supporting outer steel plate (3) are welded with supporting side webs (15), and the supporting inner steel plate (7), the supporting outer steel plate (3) and the supporting side webs (15) are welded with supporting top plates (9) and embedded steel plates (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122328470.9U CN215887892U (en) | 2021-09-26 | 2021-09-26 | Gradable limiting bridge supporting and blocking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122328470.9U CN215887892U (en) | 2021-09-26 | 2021-09-26 | Gradable limiting bridge supporting and blocking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215887892U true CN215887892U (en) | 2022-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122328470.9U Active CN215887892U (en) | 2021-09-26 | 2021-09-26 | Gradable limiting bridge supporting and blocking structure |
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| CN (1) | CN215887892U (en) |
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2021
- 2021-09-26 CN CN202122328470.9U patent/CN215887892U/en active Active
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