CN209779432U - Shockproof type bridge bearing structure - Google Patents
Shockproof type bridge bearing structure Download PDFInfo
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- CN209779432U CN209779432U CN201920225800.1U CN201920225800U CN209779432U CN 209779432 U CN209779432 U CN 209779432U CN 201920225800 U CN201920225800 U CN 201920225800U CN 209779432 U CN209779432 U CN 209779432U
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- supporting part
- buffer
- reinforcement cage
- steel reinforcement
- type bridge
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Abstract
The utility model discloses a type bridge bearing structure takes precautions against earthquakes, including first supporting part and second supporting part, the second supporting part is located the below of first supporting part, the outside protrusion of lower surface of first supporting part forms extrados, it is equipped with the intrados to the indent, its characterized in that to correspond extrados position on the second supporting part: be equipped with the ball that a plurality of arrays were arranged between intrados and the extrados, the both sides of second supporting part upwards extend there is the stopper, be equipped with horizontal buffer block between stopper and the first supporting part, horizontal buffer block includes joint portion and buffering portion, buffering portion has first surface and second surface, joint portion fixes on the second surface of buffering portion. The utility model discloses a bridge bearing structure is applicable in the shock attenuation of arch bridge and supports, can reduce the possibility that the crack appears in the bridge floor.
Description
Technical Field
The utility model discloses a type bridge bearing structure takes precautions against earthquakes belongs to bridge technical field.
Background
In a bridge structure, a bridge supporting structure has a function of transmitting a load of a bridge body to a lower structure, and simultaneously has a function of bearing displacement and rotation generated by the bridge body, and particularly, when the bridge body is subjected to large external force impact and the bridge body generates large-amplitude displacement and rotation, in order to avoid causing serious consequences, the bridge supporting structure must be capable of generating certain relative displacement and rotation relative to the bridge body to absorb the impact so as to reduce the destructiveness of the external force.
However, the existing displacement structure between the bridge body and the supporting structure cannot completely absorb large external force impact, when necessary relative displacement is generated to protect the bridge body from being damaged, the shear internal stress generated by the rotation of the residual part still acts on the supporting structure, especially the horizontal direction and the vertical direction of acting force of the arch bridge on the supporting device, and if the forces in multiple directions cannot be buffered, the bridge body is easy to crack and the supporting device is easy to damage.
SUMMERY OF THE UTILITY MODEL
To solve the above problems, an object of the present invention is to provide a quakeproof bridge supporting structure to solve the above problems in the background art.
In order to achieve the above object, the present invention provides the following technical solutions:
A shock-proof bridge supporting structure comprises a first supporting part and a second supporting part, wherein the second supporting part is positioned below the first supporting part, the lower surface of the first supporting part protrudes outwards to form an outer arc surface, an inner arc surface which is inwards concave is arranged on the second supporting part corresponding to the outer arc surface, a plurality of balls which are arranged in an array are arranged between the inner arc surface and the outer arc surface, limiting blocks extend upwards from two sides of the second supporting part, a transverse buffer block is arranged between each limiting block and the first supporting part and comprises a clamping part and a buffer part, the buffer part is provided with a first surface and a second surface, the clamping part is fixed on the second surface of the buffer part, the first surface is used for contacting with the limiting blocks when collision occurs, and the clamping part and the second surface are used for forming interference fit with the first supporting part to fix the transverse buffer block, the lower extreme of second supporting part is equipped with the spliced pole, the lower extreme of spliced pole is connected with vertical buffer pole, the bottom fixedly connected with base of vertical buffer pole.
As a further improvement of the utility model: the base is round platform form, be equipped with inner circle steel reinforcement cage and outer lane steel reinforcement cage in the base, the inner circle steel reinforcement cage is located the outer lane steel reinforcement cage, it has concrete layer all to fill in inner circle steel reinforcement cage and the outer lane steel reinforcement cage, be equipped with first buffer spring on the outer wall of outer lane steel reinforcement cage, and the outer lane steel reinforcement cage is through first buffer spring fixedly connected with steel ring.
As a further improvement of the utility model: the lower extreme of spliced pole is equipped with the dashpot, the internal connection of dashpot has second buffer spring, the upper end and the second buffer spring of vertical buffer pole are connected, and the lower extreme of vertical buffer pole wears out the dashpot and is connected with the base.
As a further improvement of the utility model: and a rubber cushion block is arranged at the contact position of the vertical buffer rod and the bottom of the buffer groove.
as a further improvement of the utility model: the bottom of second supporting part is equipped with the spacing groove, the spacing inslot is equipped with the damping pad.
As a further improvement of the utility model: the vertical buffer rod is T-shaped.
As a further improvement of the utility model: the second surface is provided with a flange, and the distance between the top of the flange and the root of the clamping part is smaller than the thickness of the corresponding part of the first supporting part.
The utility model has the advantages that: when the bridge body is impacted by external force, the first supporting part and the second supporting part generate relative displacement to absorb the impact through rolling of the balls, the two arc surfaces are in rolling connection through a plurality of balls which are arranged in parallel at intervals along the longitudinal direction of the bridge body, the impact force born by the first supporting part can be better and uniformly transmitted by adopting the matched arc surfaces, so that the contact parts of the first supporting part and the second supporting part are uniformly stressed, in addition, the two arc surfaces are in rolling connection through a plurality of balls which are arranged in parallel at intervals along the longitudinal direction of the bridge body, the displacement is generated and then acts on the balls to enable the balls to roll in the intervals, most of the impact force is absorbed under the condition that the first supporting part and the second supporting part do not generate large relative displacement, the residual impact force is further absorbed through the vertical buffer rods, and under the action of gravity, the first supporting part can return to the original position along the arc surfaces, because the power of arch bridge effect on bearing structure includes transverse acting force and vertical effort, first supporting part is when receiving transverse acting force's promotion, and first supporting part makes horizontal buffer block and stopper contact on the first supporting part along ball lateral motion, and the first surface is used for contacting with the stopper when bumping and takes place deformation for the transverse acting force of buffering effect on first supporting part has reduced the cracked probability of bridge floor like this.
Drawings
Fig. 1 is a schematic structural view of a shockproof bridge supporting structure of the present invention;
FIG. 2 is a schematic structural diagram of a lateral buffer block;
Fig. 3 is a schematic structural diagram of the base.
Reference numerals: 1. a limiting block; 2. a first support section; 3. a ball bearing; 4. a transverse buffer block; 5. a second support portion; 6. connecting columns; 7. a buffer tank; 8. a rubber cushion block; 9. a base; 10. a buffer rod; 11. a second buffer spring; 12. a first surface; 13. a second surface; 14. a clamping part; 15. a concrete layer; 16. an outer ring reinforcement cage; 17. an inner ring reinforcement cage; 18. steel rings; 19. a first buffer spring.
Detailed Description
In order to make the technical solutions of the present invention better understood, the following detailed description of the present invention is provided with reference to the accompanying drawings and specific embodiments, and it should be noted that the embodiments and features of the embodiments of the present invention can be combined with each other without conflict.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases by those skilled in the art
Referring to fig. 1-3, a shock-proof bridge supporting structure comprises a first supporting portion 2 and a second supporting portion 5, wherein the second supporting portion 5 is located below the first supporting portion 2, the lower surface of the first supporting portion 2 protrudes outwards to form an outer arc surface, an inward-concave inner arc surface is arranged on the second supporting portion 5 corresponding to the outer arc surface, a plurality of balls 3 arranged in an array are arranged between the inner arc surface and the outer arc surface, limiting blocks 1 extend upwards from two sides of the second supporting portion 5, a transverse buffer block 4 is arranged between the limiting block 1 and the first supporting portion 2, the transverse buffer block 4 comprises a clamping portion 14 and a buffer portion, the buffer portion is provided with a first surface 12 and a second surface 13, the clamping portion 14 is fixed on the second surface 13 of the buffer portion, the first surface 12 is used for contacting with the limiting block 1 when collision occurs, the clamping portion 14 and the second surface 13 are used for forming interference fit with the first supporting portion 2 to fix the transverse buffer block 4, the lower extreme of second supporting part 5 is equipped with spliced pole 6, and the lower extreme of spliced pole 6 is connected with vertical buffer pole 10, the bottom fixedly connected with base 9 of vertical buffer pole 10.
By adopting the technical scheme, when the bridge body is impacted by external force, the first supporting part 2 and the second supporting part 5 generate relative displacement to absorb the impact through the rolling of the balls 3, the two arc surfaces are in rolling connection through the balls 3 arranged along the longitudinal parallel gap of the bridge body, the impact force born by the first supporting part 2 can be better and uniformly transmitted by adopting the matched arc surfaces, so that the contact part of the first supporting part 2 and the second supporting part 5 is uniformly stressed, in addition, the two arc surfaces are in rolling connection through the balls 3 arranged along the longitudinal parallel gap of the bridge body, after the displacement is generated, the balls 3 roll in the gap, most of the impact force is absorbed under the condition that the first supporting part 2 and the second supporting part 5 do not generate large relative displacement, and the rest impact force is further absorbed through the vertical buffer rod 10, under the effect of gravity, original position can be got back to along the arcwall face to first supporting part 2, because the power of arch bridge effect on bearing structure includes transverse acting force and longitudinal force, first supporting part 2 is when receiving transverse acting force's promotion, first supporting part 2 makes transverse buffer block 4 and stopper 1 contact on the first supporting part 2 along 3 lateral motion of ball, first surface 12 is used for taking place deformation with stopper 1 contact when bumping for the transverse acting force of buffering effect on first supporting part 2, the cracked probability of bridge floor has been reduced like this.
As a specific embodiment of the improvement: the base 9 is the round platform form, is equipped with inner circle steel reinforcement cage 17 and outer lane steel reinforcement cage 16 in the base 9, and inner circle steel reinforcement cage 17 is located outer lane steel reinforcement cage 16, and it has concrete layer 15 all to pack in inner circle steel reinforcement cage 17 and the outer lane steel reinforcement cage 16, is equipped with first buffer spring 19 on the outer wall of outer lane steel reinforcement cage 16, and outer lane steel reinforcement cage 16 is through first buffer spring 19 fixedly connected with steel ring 18.
through adopting above-mentioned technical scheme, all pack in inner circle steel reinforcement cage 17 and outer lane steel reinforcement cage 16 and have concrete layer 15, adopt inner circle steel reinforcement cage 17 and outer lane steel reinforcement cage 16 technique that combines together, promoted the intensity of base 9 greatly, bearing capacity is stronger, adds first buffer spring 19 and steel ring 18 to even covering has rubber protective structure on the outer lane of steel ring 18, has fine crashproof effect.
As a specific embodiment of the improvement: the lower extreme of spliced pole 6 is equipped with dashpot 7, and the internal connection of dashpot 7 has second buffer spring 11, and the upper end and the second buffer spring 11 of vertical buffer pole 10 are connected, and the lower extreme of vertical buffer pole 10 is worn out dashpot 7 and is connected with base 9.
Through adopting above-mentioned technical scheme, the upper end and the second buffer spring 11 of vertical buffer pole 10 are connected, and when second supporting part 5 received decurrent pressure, second buffer spring 11 can carry out further buffering to vertical pressure, and the shock attenuation effect is good.
As a specific embodiment of the improvement: the contact position of the vertical buffer rod 10 and the bottom of the buffer groove 7 is provided with a rubber cushion block 8, and the vertical buffer rod 10 is T-shaped.
Through adopting above-mentioned technical scheme, avoid the inner wall friction of vertical buffer pole 10 and buffer tank 7 for vertical buffer pole 10's surface wear is serious.
As a specific embodiment of the improvement: the bottom of second supporting part 5 is equipped with the spacing groove, and the spacing inslot is equipped with the damping pad.
By adopting the above technical scheme, the damping pad on the second supporting part 5 can additionally absorb a part of impact force and make the ball 3 roll better, thus bearing the whole bridge displacement.
as a specific embodiment of the improvement: the second surface 13 is provided with a flange, and the distance between the top of the flange and the root of the clamping part 14 is smaller than the thickness of the corresponding part of the first supporting part 2.
Through adopting above-mentioned technical scheme, because the top of flange is less than the thickness of the corresponding part of first supporting part 2 with the distance of the root of joint portion 14, when forming interference fit between flange and first supporting part 2, elastic deformation can take place for the flange to the cooperation portion that flange and the root of joint portion 14 formed is cliied first supporting part 2, has realized the interference fit between horizontal buffer block 4 and the first supporting part 2.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a type bridge bearing structure takes precautions against earthquakes, includes first supporting part (2) and second supporting part (5), second supporting part (5) are located the below of first supporting part (2), the outside protrusion of lower surface of first supporting part (2) forms extrados, correspond extrados position on second supporting part (5) and be equipped with the intrados of inside recess, its characterized in that: the buffer structure is characterized in that a plurality of balls (3) arranged in an array are arranged between the inner arc surface and the outer arc surface, a limiting block (1) extends upwards from two sides of the second supporting part (5), a transverse buffer block (4) is arranged between the limiting block (1) and the first supporting part (2), the transverse buffer block (4) comprises a clamping part (14) and a buffer part, the buffer part is provided with a first surface (12) and a second surface (13), the clamping part (14) is fixed on the second surface (13) of the buffer part, the first surface (12) is used for being in contact with the limiting block (1) when collision occurs, the clamping part (14) and the second surface (13) are used for forming interference fit with the first supporting part (2) so as to fix the transverse buffer block (4), a connecting column (6) is arranged at the lower end of the second supporting part (5), and a vertical buffer rod (10) is connected with the lower end of the connecting column (6), the bottom end of the vertical buffer rod (10) is fixedly connected with a base (9).
2. A shock-resistant type bridge support structure according to claim 1, wherein: base (9) are the round platform form, be equipped with inner circle steel reinforcement cage (17) and outer lane steel reinforcement cage (16) in base (9), inner circle steel reinforcement cage (17) are located outer lane steel reinforcement cage (16), it has concrete layer (15) all to fill in inner circle steel reinforcement cage (17) and outer lane steel reinforcement cage (16), be equipped with first buffer spring (19) on the outer wall of outer lane steel reinforcement cage (16), and outer lane steel reinforcement cage (16) are through first buffer spring (19) fixedly connected with steel ring (18).
3. A shock-resistant type bridge support structure according to claim 2, wherein: the lower extreme of spliced pole (6) is equipped with dashpot (7), the internal connection of dashpot (7) has second buffer spring (11), the upper end and the second buffer spring (11) of vertical buffer pole (10) are connected, and the lower extreme of vertical buffer pole (10) is worn out dashpot (7) and is connected with base (9).
4. A shock-resistant type bridge support structure according to claim 3, wherein: and a rubber cushion block (8) is arranged at the contact position of the vertical buffer rod (10) and the bottom of the buffer groove (7).
5. A shock-resistant type bridge support structure according to claim 1, wherein: the bottom of second supporting part (5) is equipped with the spacing groove, the spacing inslot is equipped with the damping pad.
6. A shock-resistant type bridge support structure according to claim 2, wherein: the vertical buffer rod (10) is T-shaped.
7. A shock-resistant type bridge support structure according to claim 1, wherein: the second surface (13) is provided with a flange, and the distance between the top of the flange and the root of the clamping part (14) is smaller than the thickness of the corresponding part of the first supporting part (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920225800.1U CN209779432U (en) | 2019-02-23 | 2019-02-23 | Shockproof type bridge bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920225800.1U CN209779432U (en) | 2019-02-23 | 2019-02-23 | Shockproof type bridge bearing structure |
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| Publication Number | Publication Date |
|---|---|
| CN209779432U true CN209779432U (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920225800.1U Active CN209779432U (en) | 2019-02-23 | 2019-02-23 | Shockproof type bridge bearing structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576217A (en) * | 2020-04-23 | 2020-08-25 | 中铁十六局集团有限公司 | Positioning device for erecting segment beam |
| CN112342898A (en) * | 2020-10-30 | 2021-02-09 | 重庆交通大学 | Bridge anti-seismic and anti-beam-falling device |
-
2019
- 2019-02-23 CN CN201920225800.1U patent/CN209779432U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576217A (en) * | 2020-04-23 | 2020-08-25 | 中铁十六局集团有限公司 | Positioning device for erecting segment beam |
| CN112342898A (en) * | 2020-10-30 | 2021-02-09 | 重庆交通大学 | Bridge anti-seismic and anti-beam-falling device |
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