CN209854537U - Inverted steel truss beam spherical support - Google Patents
Inverted steel truss beam spherical support Download PDFInfo
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- CN209854537U CN209854537U CN201920191871.4U CN201920191871U CN209854537U CN 209854537 U CN209854537 U CN 209854537U CN 201920191871 U CN201920191871 U CN 201920191871U CN 209854537 U CN209854537 U CN 209854537U
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- seat plate
- spherical
- plate
- upper seat
- steel truss
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Abstract
The utility model discloses an inverted steel truss girder spherical support, which comprises an upper seat plate, a spherical crown lining plate and a lower seat plate; the lower surface of the upper seat plate is an inwards concave spherical surface, the side of the lower surface of the upper seat plate is provided with an upper seat plate limiting block, and the curved surface sliding plate is embedded and fixed on the lower surface of the upper seat plate through a first embedding groove; the upper surface of the spherical crown lining plate is a convex spherical surface, curved surface stainless steel is fixed on the upper surface of the spherical crown lining plate, and the other surface of the curved surface stainless steel is abutted with the curved surface sliding plate and the sealing ring; the peripheral outer wall of the lower seat plate is provided with a lower seat plate flange, and the peripheral outer wall of the lower seat plate flange is abutted against the peripheral inner wall of the upper seat plate basin ring, so that the upper seat plate basin is wrapped by the lower seat plate flange. The utility model avoids the deviation of the support to the steel truss girder supporting reaction point caused by the rotation or horizontal sliding of the support, and ensures the reliability of the steel truss girder stress; the upper seat plate is adopted to wrap the lower seat plate, so that the waterproof and dustproof effects are achieved, and the problem that the support is rusted due to the fact that condensed water or rainwater cannot be discharged is particularly avoided.
Description
Technical Field
The utility model belongs to the technical field of the bridge annex, specifically, relate to an inversion formula steel longeron ball-type support.
Background
With the rapid development of bridge engineering such as passenger dedicated line railways, high-speed railways, expressways, urban overpasses and the like in China, the spherical bearing serving as a novel bridge bearing is gradually widely applied to railway bridges and highway bridges in a large scale due to the excellent performances of large bearing capacity, large turning angle and long service life. The steel truss bridge is a common bridge type of a railway bridge, a girder body bearing structure is formed by a truss, loads such as the self weight of the girder body, the weight of a vehicle and the like are transmitted to a truss node by a truss connecting rod, and then are transmitted to a bridge abutment through a support at the node. Because the girder part load of steel truss bridge passes through the node and transmits the pier, need guarantee that bridge during operation girder part node coincides with lower part back reaction line all the time, if use ordinary support, then when the roof beam body takes place horizontal displacement or vertical corner, steel truss passes power node and support bearing reaction line and can appear deviating, makes steel truss bridge girder body atress situation unfavorable. In order to ensure that the steel truss bridge is reliable in bearing and stable in stress of the truss connecting rods, a hinged shaft support is usually adopted as a support type, and a common ball seat is also used as the support type. In order to ensure that the spherical support and the abutment concrete are uniformly stressed and the spherical surface of the support is uniformly deformed, a large-scale force transmission cushion block is required to be added on the top surface of the support to ensure that the load action is uniform, so that a combined support form is formed; the two support types have the defects of high building height, large plane size, easy abrasion of a hinge shaft force transmission surface due to linear contact, high requirement on horizontal parallel installation of a hinge shaft axis and a beam body, low reliability and the like in use.
Chinese patent CN205259054U discloses a spherical support for a steel truss girder bridge, which comprises an upper seat plate, a middle seat plate and a lower seat plate; the lower surface of the upper seat plate is a concave spherical surface; the upper surface of the middle seat plate is a convex spherical surface matched with the lower surface of the upper seat plate; the spherical non-metal sliding plate embedded on the concave spherical surface of the upper seat plate and the spherical stainless steel sliding plate attached on the convex spherical surface of the middle seat plate form a spherical vertical rotation friction pair for the rotation of the spherical support; the lower surface of the middle seat plate is a plane; the plane sliding plate embedded on the lower surface of the middle seat plate and the plane stainless steel sliding plate attached on the upper surface of the lower seat plate form a plane sliding friction pair for realizing the horizontal sliding of the spherical support. The support can solve the defects that the two support types have high building height and large plane size in use, the force transmission surface of the hinge shaft is in linear contact and is easy to wear, the requirement on the horizontal parallel installation of the axis of the hinge shaft and a beam body is high, the reliability is low and the like. But among its structural design, belong to bedplate on the lower seat parcel, very easily appear the support because of comdenstion water or rainwater can't get rid of and the corrosion problem appears, influence the operation and the life of support.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an inversion formula steel longeron ball-type support.
The purpose of the utility model can be realized by the following technical scheme:
an inverted steel truss girder spherical support comprises an upper seat plate, a spherical crown lining plate and a lower seat plate;
the upper surface of the upper seat plate is a plane fixedly connected with the steel truss girder bridge, and the upper seat plate is connected with the steel truss girder by bolts; the lower surface of the upper seat plate is an inwards concave spherical surface, an upper seat plate limiting block is arranged on the side of the lower surface of the upper seat plate, a first embedding groove for fixing a curved surface sliding plate is formed in the concave spherical surface of the upper seat plate, and the curved surface sliding plate is embedded and fixed on the lower surface of the upper seat plate through the first embedding groove; the concave spherical surface of the upper seat plate is also provided with a first caulking groove for fixing a first sealing ring, and the first sealing ring is fixedly embedded on the lower surface of the upper seat plate through the first caulking groove;
the upper surface of the spherical crown lining plate is a convex spherical surface, curved surface stainless steel is fixed on the upper surface of the spherical crown lining plate, and the other surface of the curved surface stainless steel is abutted to the curved surface sliding plate and the sealing ring; the lower surface of the spherical cap lining plate is a plane, a second embedding groove for fixing a plane sliding plate is formed in the lower surface of the spherical cap lining plate, the plane sliding plate is embedded in the lower surface of the spherical cap lining plate through the second embedding groove, a second embedding groove for fixing a second sealing ring is further formed in the lower surface of the spherical cap lining plate, and the second sealing ring is embedded in the lower surface of the spherical cap lining plate through the second embedding groove;
the peripheral outer wall of the lower seat plate is provided with a lower seat plate flange, the upper surface of the lower seat plate flange is flush with the upper surface of the lower seat plate, and the peripheral outer wall of the lower seat plate flange is abutted against the peripheral inner wall of the upper seat plate limiting block, so that the upper seat plate basin is wrapped by the lower seat plate flange; the upper surface of the lower seat plate is fixed with plane stainless steel, and the upper surface of the plane stainless steel is abutted to the lower surface of the plane sliding plate.
Further, the first caulking groove is in an integral type or a multi-piece distributed type, and the first caulking groove is positioned on the outer side of the first caulking groove.
Further, the curved surface stainless steel is fixed on the upper surface of the spherical cap lining plate through welding.
Further, the second caulking groove is in an integral type or a multi-piece distributed type, and the second caulking groove is positioned on the outer side of the second caulking groove.
Further, the planar stainless steel is fixed to the upper surface of the lower seat plate by welding.
Further, the lower surface of the lower seat plate is connected with the pier top through an anchor bolt.
Furthermore, the lower seat plate limiting block is of a circular ring structure, a square structure or four strip-shaped structures which are parallel in pairs, so that a fixed inverted steel truss girder spherical support is formed.
Furthermore, the lower seat plate limiting blocks are of two parallel strip structures, and a one-way inverted steel truss girder spherical support is formed.
The utility model has the advantages that:
(1) the utility model avoids the deviation of the support to the steel truss girder supporting reaction point caused by the rotation or horizontal sliding of the support, and ensures the reliability of the steel truss girder stress;
(2) the upper seat plate is adopted to wrap the lower seat plate, so that the waterproof and dustproof effects are achieved, and particularly, the problem that the support is rusted due to the fact that condensed water or rainwater cannot be drained is avoided;
(3) the depth of the upper seat extending out of the circular ring is small, and under the action of a certain horizontal force, the bottom stress bending moment is small, so that the horizontal bearing capacity of the support is improved.
Drawings
The present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of an inverted steel truss beam spherical support of the present invention;
the figure is as follows: 1. the upper seat plate comprises an upper seat plate, 11, an upper seat plate limiting block, 2, a curved surface sliding plate, 3, curved surface stainless steel, 4, a spherical crown lining plate, 51, a first sealing ring, 52, a second sealing ring, 6, a lower seat plate, 61, a lower seat plate flange, 7, a plane sliding plate and 8, plane stainless steel.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
An inverted steel truss girder spherical support is shown in figure 1 and comprises an upper seat plate 1, a spherical crown lining plate 4 and a lower seat plate 6;
the upper surface of the upper seat plate 1 is a plane fixedly connected with the steel truss girder bridge, and the upper seat plate 1 is connected with the steel truss girder bridge by bolts; the lower surface of the upper seat plate 1 is an inwards concave spherical surface, the lower surface end side of the upper seat plate 1 is provided with an upper seat plate limiting block 11, the concave spherical surface of the upper seat plate 1 is provided with a first embedding groove for fixing the curved surface sliding plate 2, the first embedding groove is in an integral type or a multi-piece distributed type, and the curved surface sliding plate 2 is embedded and fixed on the lower surface of the upper seat plate 1 through the first embedding groove; the concave spherical surface of the upper seat plate 1 is also provided with a first caulking groove for fixing a first sealing ring 51, the first caulking groove is positioned at the outer side of the first caulking groove, and the first sealing ring 51 is embedded and fixed on the lower surface of the upper seat plate 1 through the first caulking groove;
the upper surface of the spherical crown lining plate 4 is a convex spherical surface, the upper surface of the spherical crown lining plate 4 is fixed with curved surface stainless steel 3, the curved surface stainless steel 3 is fixed on the upper surface of the spherical crown lining plate 4 through welding, and the other surface of the curved surface stainless steel 3 is abutted against the curved surface sliding plate 2 and the sealing ring 5; the lower surface of the spherical cap lining plate 4 is a plane, a second embedding groove for fixing the planar sliding plate 7 is formed in the lower surface of the spherical cap lining plate 4, the second embedding groove is integral or distributed, the planar sliding plate 7 is embedded in the lower surface of the spherical cap lining plate 4 through the second embedding groove, a second embedding groove for fixing a second sealing ring 52 is further formed in the lower surface of the spherical cap lining plate 4, the second embedding groove is located on the outer side of the second embedding groove, and the second sealing ring 52 is embedded and fixed in the lower surface of the spherical cap lining plate 4 through the second embedding groove;
the peripheral outer wall of the lower seat plate 6 is provided with a lower seat plate flange 61, the upper surface of the lower seat plate flange 61 is flush with the upper surface of the lower seat plate 6, and the peripheral outer wall of the lower seat plate flange 61 is abutted with the peripheral inner wall of the upper seat plate limiting block 11, so that the upper seat plate basin 11 is wrapped by the lower seat plate flange 61 to play a role in waterproof sealing; the upper surface of the lower seat plate 6 is fixedly provided with a plane stainless steel 8, the plane stainless steel 8 is fixed on the upper surface of the lower seat plate 6 through welding, and the upper surface of the plane stainless steel 8 is abutted against the lower surface of the plane sliding plate 7; the lower surface of the lower seat plate 6 is connected with the pier top through an anchor bolt; the upper seat plate limiting block 11 is of a circular ring structure, a square structure or four strip structures which are parallel in pairs, so that a fixed inverted steel truss girder spherical support is formed; the upper seat plate limiting blocks 11 are of two parallel strip structures, and form a one-way inverted steel truss girder spherical support.
The utility model discloses a theory of operation and mode:
the curved stainless steel 3 embedded on the spherical crown lining plate 4 and the curved sliding plate 2 attached on the upper seat plate 1 form a spherical vertical rotation friction pair for the rotation of the spherical support;
a plane sliding friction pair is formed by a plane sliding plate 7 embedded on the lower surface of the spherical crown lining plate 4 and plane stainless steel 8 attached to the upper surface of the lower seat plate 6, so that the horizontal sliding of the spherical support is realized;
the peripheral outer wall of the lower seat plate flange 61 is abutted against the peripheral inner wall of the upper seat plate limiting block 11, so that the lower seat plate flange 61 is wrapped outside the upper seat plate limiting block 11 to play a role in waterproof sealing, and particularly the problem that a support is rusted due to the fact that condensed water or rainwater cannot be discharged is avoided;
the utility model avoids the deviation of the support to the steel truss girder supporting reaction point caused by the rotation and the sliding of the support, and ensures the reliability of the steel truss girder stress;
the upper seat plate is adopted to wrap the lower seat plate, so that the waterproof and dustproof effects are achieved, and particularly, the problem that the support is rusted due to the fact that condensed water or rainwater cannot be drained is avoided;
the depth of the upper seat extending out of the circular ring is small, and under the action of a certain horizontal force, the bottom stress bending moment is small, so that the horizontal bearing capacity of the support is improved.
The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.
Claims (8)
1. An inverted steel truss girder spherical support is characterized by comprising an upper seat plate (1), a spherical crown lining plate (4) and a lower seat plate (6);
the upper surface of the upper seat plate (1) is a plane fixedly connected with the steel truss girder bridge, and the upper seat plate (1) is connected with the steel truss girder bridge by bolts; the lower surface of the upper seat plate (1) is an inwards concave spherical surface, an upper seat plate limiting block (11) is arranged on the lower surface end side of the upper seat plate (1), a first embedding groove for fixing the curved surface sliding plate (2) is formed in the concave spherical surface of the upper seat plate (1), and the curved surface sliding plate (2) is embedded and fixed on the lower surface of the upper seat plate (1) through the first embedding groove; the concave spherical surface of the upper seat plate (1) is also provided with a first caulking groove for fixing a first sealing ring (51), and the first sealing ring (51) is embedded and fixed on the lower surface of the upper seat plate (1) through the first caulking groove;
the upper surface of the spherical crown lining plate (4) is a convex spherical surface, curved surface stainless steel (3) is fixed on the upper surface of the spherical crown lining plate (4), and the other surface of the curved surface stainless steel (3) is abutted to the curved surface sliding plate (2) and the sealing ring (5); the lower surface of the spherical cap lining plate (4) is a plane, a second embedding groove for fixing a plane sliding plate (7) is formed in the lower surface of the spherical cap lining plate (4), the plane sliding plate (7) is embedded in the lower surface of the spherical cap lining plate (4) through the second embedding groove, a second embedding groove for fixing a second sealing ring (52) is further formed in the lower surface of the spherical cap lining plate (4), and the second sealing ring (52) is embedded in the lower surface of the spherical cap lining plate (4) through the second embedding groove;
a lower seat plate flange (61) is arranged on the peripheral outer wall of the lower seat plate (6), the upper surface of the lower seat plate flange (61) is flush with the upper surface of the lower seat plate (6), and the peripheral outer wall of the lower seat plate flange (61) is abutted against the peripheral inner wall of the upper seat plate limiting block (11), so that the lower seat plate flange (61) is wrapped outside the upper seat plate limiting block (11); the upper surface of bedplate (6) is fixed with plane stainless steel (8), the upper surface of plane stainless steel (8) and the lower surface butt of plane slide (7).
2. The inverted steel truss ball-type pedestal of claim 1, wherein the first caulking groove is integral or multi-piece distributed, and the first caulking groove is positioned at the outer side of the first caulking groove.
3. The inverted steel truss spherical bearing according to claim 1, wherein the curved stainless steel (3) is fixed to the upper surface of the spherical cap liner (4) by welding.
4. The inverted steel truss ball-type pedestal of claim 1, wherein the second caulking groove is integral or multi-piece distributed, and the second caulking groove is positioned at the outer side of the second caulking groove.
5. An inverted steel truss ball-type pedestal as claimed in claim 1, wherein the planar stainless steel (8) is fixed to the upper surface of the bedplate (6) by welding.
6. The inverted steel truss ball-type pedestal of claim 1, wherein the lower surface of the lower seat plate (6) is connected with the pier top by an anchor bolt.
7. The inverted steel truss spherical support as claimed in claim 1, wherein the upper seat plate stopper (11) is of a circular ring structure, a square structure or four strip structures parallel in pairs to form a fixed inverted steel truss spherical support.
8. The inverted steel truss spherical bearing according to claim 1, wherein the upper seat plate stopper (11) has two parallel strip structures to form a one-way inverted steel truss spherical bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920191871.4U CN209854537U (en) | 2019-02-12 | 2019-02-12 | Inverted steel truss beam spherical support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920191871.4U CN209854537U (en) | 2019-02-12 | 2019-02-12 | Inverted steel truss beam spherical support |
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| Publication Number | Publication Date |
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| CN209854537U true CN209854537U (en) | 2019-12-27 |
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| CN201920191871.4U Active CN209854537U (en) | 2019-02-12 | 2019-02-12 | Inverted steel truss beam spherical support |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736187A (en) * | 2019-02-12 | 2019-05-10 | 安徽尚德科技有限公司 | A kind of inversion type steel truss girder spherical bearing |
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2019
- 2019-02-12 CN CN201920191871.4U patent/CN209854537U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736187A (en) * | 2019-02-12 | 2019-05-10 | 安徽尚德科技有限公司 | A kind of inversion type steel truss girder spherical bearing |
| CN109736187B (en) * | 2019-02-12 | 2024-04-05 | 尚德科技(安徽)有限公司 | Inverted steel truss girder spherical support |
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