CN204097872U - A kind of Longspan Bridge expanded joint structure - Google Patents
A kind of Longspan Bridge expanded joint structure Download PDFInfo
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- CN204097872U CN204097872U CN201420602382.0U CN201420602382U CN204097872U CN 204097872 U CN204097872 U CN 204097872U CN 201420602382 U CN201420602382 U CN 201420602382U CN 204097872 U CN204097872 U CN 204097872U
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- joint structure
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Abstract
The utility model discloses a kind of Longspan Bridge expanded joint structure, comprise two adjacent beam columns, each beam column is provided with bridge floor body, expanded joint structure is provided with between two beam columns, described expanded joint structure comprises the fixed block be fixed on beam column, be connected by the first rubber layer between two fixed blocks, the coupling part of two fixed blocks is provided with oblong cavity, rubber tube is provided with in oblong cavity, the both sides of rubber tube are closely fitted with two arc contact surfaces respectively, arc contact surface is fixed on the inwall of oblong cavity, the end face of fixed block and bottom surface are symmetrically arranged with curved support arm respectively, the curved support arm being positioned at the homonymy on different fixed block fits tightly mutually, the end face of fixed block and bottom surface are fixed with the second rubber layer respectively, in two of homonymy curved support arms are wrapped in by the second rubber layer.The utility model can improve the deficiencies in the prior art, improves the buffer capacity of expanded joint structure at vertical direction.
Description
Technical field
The utility model relates to a kind of bridge construction structure, especially a kind of Longspan Bridge expanded joint structure.
Background technology
Shrinkage joint is the structure that bridge designs in order to the change of conform temperature and load, can realize the free deformation of bridge.Chinese utility model patent CN 203768806 U discloses a kind of bridge expanssion joint, rubber tube can being made stressed on four direction when there is deformation, extending the life-span of rubber tube.But, this structure adopts horizontally disposed Y shaped bracket as the transmission of active force and buffer structure, this structure has good cushioning effect for the active force of horizontal direction, but, for the active force of vertical direction, the Y shaped bracket of this horizontally set just cannot well cushion, and when active force is excessive, may occur the situations such as expanded joint structure dislocation.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of Longspan Bridge expanded joint structure, can solve the deficiencies in the prior art, improves the buffer capacity of expanded joint structure at vertical direction.
For solving the problems of the technologies described above, technical solution adopted in the utility model is as follows.
A kind of Longspan Bridge expanded joint structure, comprise two adjacent beam columns, each beam column is provided with bridge floor body, expanded joint structure is provided with between two beam columns, Stone crushing bomb plastic body LIFT is provided with above expanded joint structure, described expanded joint structure comprises the fixed block be fixed on beam column, be connected by the first rubber layer between two fixed blocks, the coupling part of two fixed blocks is provided with oblong cavity, the longer axis parallel of oblong cavity is in horizontal plane, rubber tube is provided with in oblong cavity, the external diameter of rubber tube is equal with the minor axis of holder spherical hollow space, the both sides of rubber tube are closely fitted with two arc contact surfaces respectively, arc contact surface is fixed on the inwall of oblong cavity, the center line of arc contact surface and the angle of horizontal plane are 10 ° ~ 20 °, the end face of fixed block and bottom surface are symmetrically arranged with curved support arm respectively, the curved support arm being positioned at the homonymy on different fixed block fits tightly mutually, the end face of fixed block and bottom surface are fixed with the second rubber layer respectively, in two of homonymy curved support arms are wrapped in by the second rubber layer.
As preferably, described Stone crushing bomb plastic body LIFT is provided with trapezoidal groove, and the end face width of trapezoidal groove is less than bottom width.
As preferably, the both sides of described second rubber layer are provided with steel plate.
The beneficial effect adopting technique scheme to bring is: the utility model changes Y shaped bracket structure of the prior art, use oblong cavity and arc contact surface to support rubber tube, whole expanded joint structure buffering effect in the horizontal direction can be kept.Further, by designing curved support arm bonded to each other, when expanded joint structure is subject to the active force of vertical direction, curved support arm is along arcwall face generation relative displacement.Illustrate with downward active force, the curved support arm end at top produces closed trend, thus drive the curved support arm end of bottom to produce the trend opened, there is the curved support arm of the trend of opening and then this trend opened is acted on the second rubber layer, form the active force of a horizontal direction, meanwhile, oblong cavity and arc contact surface can carry out corresponding deformation according to the relative displacement of fixed block and rubber tube and extrude, and relative to the linear contact lay of Y shaped bracket, oblong cavity and the linear contact lay of ball add that arc contact surface contacts with the face of rubber tube, a more comprehensively distribution of forces effect can be formed.Which achieves the process active force of vertical direction being converted into horizontal direction active force and then carrying out again cushioning, thus the Y shaped bracket structure changing lateral arrangement in prior art is for the not good present situation of vertical direction active force cushioning effect.Trapezoidal groove can realize the drain function on expanded joint structure surface, and the bottom surface that trapezoidal groove is roomy can prevent the stuck inside at trapezoidal groove of introduced contaminants particle.When the generation relative displacement of curved support arm, curved support arm can produce to stretch to the second rubber layer and draw effect, and steel plate can keep the global shape of the second rubber layer, and more effectively stretches this active force drawing effect to be converted into horizontal direction.
Accompanying drawing explanation
Fig. 1 is the structure chart of vacuum test tube in the utility model detailed description of the invention.
In figure: 1, beam column; 2, bridge floor body; 3, Stone crushing bomb plastic body LIFT; 4, fixed block; 5, the first rubber layer; 6, oblong cavity; 7, rubber tube; 8, arc contact surface; 9, curved support arm; 10, the second rubber layer; 11, trapezoidal groove; 12, steel plate; 13, reinforcing bar; 14, wire rope.
Detailed description of the invention
The standardized element used in the utility model all can be commercially, shaped piece all can carry out customized according to manual with the record of accompanying drawing, the concrete connected mode of each part all adopts the conventional means such as bolt, rivet, welding, stickup ripe in prior art, is not described in detail in this.
With reference to Fig. 1, the utility model detailed description of the invention comprises two adjacent beam columns 1, each beam column 1 is provided with bridge floor body 2, expanded joint structure is provided with between two beam columns 1, Stone crushing bomb plastic body LIFT 3 is provided with above expanded joint structure, described expanded joint structure comprises the fixed block 4 be fixed on beam column 1, be connected by the first rubber layer 5 between two fixed blocks 4, the coupling part of two fixed blocks 4 is provided with oblong cavity 6, the longer axis parallel of oblong cavity 6 is in horizontal plane, rubber tube 7 is provided with in oblong cavity 6, the external diameter of rubber tube 7 is equal with the minor axis of holder spherical hollow space 6, the both sides of rubber tube 7 are closely fitted with two arc contact surfaces 8 respectively, arc contact surface 8 is fixed on the inwall of oblong cavity 6, the center line of arc contact surface 8 and the angle of horizontal plane are 15 °, the end face of fixed block 4 and bottom surface are symmetrically arranged with curved support arm 9 respectively, the curved support arm 9 being positioned at the homonymy on different fixed block fits tightly mutually, the end face of fixed block 4 and bottom surface are fixed with the second rubber layer 10 respectively, in two of homonymy curved support arms 9 are wrapped in by the second rubber layer 10.Use oblong cavity and arc contact surface to support rubber tube, whole expanded joint structure buffering effect in the horizontal direction can be kept.Further, by designing curved support arm bonded to each other, when expanded joint structure is subject to the active force of vertical direction, curved support arm is along arcwall face generation relative displacement, the curved support arm with the trend of opening acts on the second rubber layer, form the active force of a horizontal direction, achieve the process active force of vertical direction being converted into horizontal direction active force and then carrying out again cushioning.Oblong cavity and arc contact surface can carry out corresponding deformation according to the relative displacement of fixed block and rubber tube and extrude, and relative to the linear contact lay of Y shaped bracket, oblong cavity and the linear contact lay of ball add that arc contact surface contacts with the face of rubber tube, can form a more comprehensively distribution of forces effect.Stone crushing bomb plastic body LIFT 3 is provided with trapezoidal groove 11, the end face width of trapezoidal groove 11 is less than bottom width, trapezoidal groove 11 can realize the drain function on expanded joint structure surface, and the bottom surface that trapezoidal groove 11 is roomy can prevent the stuck inside at trapezoidal groove 11 of introduced contaminants particle.The both sides of the second rubber layer 10 are provided with steel plate 12, when there is relative displacement in curved support arm 9, curved support arm 9 can produce to stretch to the second rubber layer 10 and draw effect, steel plate 12 can keep the global shape of the second rubber layer 10, and more effectively stretches this active force drawing effect to be converted into horizontal direction.
In addition, at the center of rubber tube 7, be provided with reinforcing bar 13, this can improve the globality of the rubber tube 7 be fixed in whole shrinkage joint, between reinforcing bar 13 and the arc contact surface 8 in outside, be provided with wire rope 14 in addition, the synchronous interaction of arc contact surface 8 and rubber tube 7 can be realized.Thus improve the ability of expanded joint structure buffering external forces.
Wherein, be similar to the existing expansion joint structures such as Stone crushing bomb plastic body LIFT 3, belong to prior art, fully open in the patent document that background technology is quoted, the application carries out improving on this basis, so be not described in detail in this.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and manual just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. a Longspan Bridge expanded joint structure, comprise two adjacent beam columns (1), each beam column (1) is provided with bridge floor body (2), expanded joint structure is provided with between two beam columns (1), Stone crushing bomb plastic body LIFT (3) is provided with above expanded joint structure, it is characterized in that: described expanded joint structure comprises the fixed block (4) be fixed on beam column (1), be connected by the first rubber layer (5) between two fixed blocks (4), the coupling part of two fixed blocks (4) is provided with oblong cavity (6), the longer axis parallel of oblong cavity (6) is in horizontal plane, rubber tube (7) is provided with in oblong cavity (6), the external diameter of rubber tube (7) is equal with the minor axis of holder spherical hollow space (6), the both sides of rubber tube (7) are closely fitted with two arc contact surfaces (8) respectively, arc contact surface (8) is fixed on the inwall of oblong cavity (6), the center line of arc contact surface (8) and the angle of horizontal plane are 10 ° ~ 20 °, the end face of fixed block (4) and bottom surface are symmetrically arranged with curved support arm (9) respectively, the curved support arm (9) being positioned at the homonymy on different fixed block fits tightly mutually, the end face of fixed block (4) and bottom surface are fixed with the second rubber layer (10) respectively, in two of homonymy curved support arms (9) are wrapped in by the second rubber layer (10).
2. Longspan Bridge expanded joint structure according to claim 1, it is characterized in that: described Stone crushing bomb plastic body LIFT (3) is provided with trapezoidal groove (11), and the end face width of trapezoidal groove (11) is less than bottom width.
3. Longspan Bridge expanded joint structure according to claim 1, is characterized in that: the both sides of described second rubber layer (10) are provided with steel plate (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420602382.0U CN204097872U (en) | 2014-09-30 | 2014-09-30 | A kind of Longspan Bridge expanded joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420602382.0U CN204097872U (en) | 2014-09-30 | 2014-09-30 | A kind of Longspan Bridge expanded joint structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204097872U true CN204097872U (en) | 2015-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420602382.0U Expired - Fee Related CN204097872U (en) | 2014-09-30 | 2014-09-30 | A kind of Longspan Bridge expanded joint structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204097872U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105648903A (en) * | 2016-04-15 | 2016-06-08 | 汪金荣 | Bridge expansion joint covering device capable of increasing service performance of bridge |
| CN105887671A (en) * | 2016-04-15 | 2016-08-24 | 厦门市新岚五金工具有限公司 | Cover component for covering bridge expansion joint |
-
2014
- 2014-09-30 CN CN201420602382.0U patent/CN204097872U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105648903A (en) * | 2016-04-15 | 2016-06-08 | 汪金荣 | Bridge expansion joint covering device capable of increasing service performance of bridge |
| CN105887671A (en) * | 2016-04-15 | 2016-08-24 | 厦门市新岚五金工具有限公司 | Cover component for covering bridge expansion joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20150930 |
|
| EXPY | Termination of patent right or utility model |