CN213896739U - Expansion joint device - Google Patents
Expansion joint device Download PDFInfo
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- CN213896739U CN213896739U CN202022065807.7U CN202022065807U CN213896739U CN 213896739 U CN213896739 U CN 213896739U CN 202022065807 U CN202022065807 U CN 202022065807U CN 213896739 U CN213896739 U CN 213896739U
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Abstract
The utility model relates to an expansion joint device, it includes boundary beam shaped steel, rubber tape, anchor reinforcing bar, buffer, spring, and buffer is located between the boundary beam shaped steel of both sides, and buffer includes well roof beam shaped steel, erects a supporting beam, a horizontal supporting beam, cylinder pole, links to each other with the spring through the rubber tape between buffer and the boundary beam shaped steel. This application has the effect that reduces the damaged probability of rubber tape when the bridge floor takes place great deformation among the flexible seam device.
Description
Technical Field
The application relates to the technical field of bridges, in particular to an expansion joint device.
Background
The bridge expansion joint is a device arranged between two beam ends, between a beam end and a bridge abutment or at the hinged position of a bridge in order to meet the requirement of bridge deck deformation caused by vehicle load and self building materials or temperature change of the bridge.
At present, the expansion joint applied in practice is simple in structure and generally only comprises the boundary beam section steels on two sides of the expansion joint, the rubber belt connected between the two boundary beam section steels and the anchoring reinforcing steel bars on the boundary beam section steels, and the expansion joint with the simple structure is easy to cause the breakage of the rubber belt when the deformation of the bridge deck is large.
SUMMERY OF THE UTILITY MODEL
In order to reduce the damaged probability of expansion joint device when the great deformation takes place at the bridge floor, this application provides an expansion joint device.
The application provides a pair of expansion joint device adopts following technical scheme:
an expansion joint device comprises boundary beam section steel, a rubber belt and anchoring steel bars, wherein the boundary beam section steel comprises two boundary beam section steel arranged at two sides of an expansion joint, and the anchoring steel bars are connected to one side of the boundary beam section steel, which is far away from the expansion joint; the buffer device is positioned between the two side beam section steels; the buffer device is connected with each edge beam section steel through the rubber belt; the buffer device comprises a middle beam section steel, a vertical supporting beam, a transverse supporting beam, a cylindrical rod and a spring, wherein the vertical supporting beam is connected below the middle beam section steel, the length direction of the cylindrical rod is consistent with the length direction of the expansion joint, the cylindrical rod abuts against the lower part of the vertical supporting beam, and the transverse supporting beam is connected below the cylindrical rod; the cross support beam is connected with the two side beam section steels through the springs.
Through adopting above-mentioned technical scheme, buffer can cushion the power that the bridge floor received through its inside structure, reduces the deformation volume of bridge floor and the displacement volume of bridge floor to reduce the deformation volume of rubber tape, thereby reduce the damaged probability of rubber tape.
Preferably, the side beam section steel comprises an upper side beam section steel and a lower side beam section steel, and a groove is formed in the side surface, close to the expansion joint, of the lower side beam section steel; two side edges of the transverse supporting beam extend into the grooves of the lower edge beam section steel positioned at two sides of the expansion joint; and a plurality of springs are arranged between the cross support beam and the lower side beam profile steel.
Through adopting above-mentioned technical scheme, a plurality of spring between cross support roof beam and the boundary beam shaped steel is connected buffer and the boundary beam shaped steel of expansion joint both sides, constitutes expansion joint device whole.
Preferably, a plurality of the springs are respectively arranged between the upper surface of the cross support beam and the upper wall of the groove, and between the lower surface of the cross support beam and the lower wall of the groove
Through adopting above-mentioned technical scheme, when the bridge floor received the ascending load of vertical side of perpendicular to bridge floor, can play the cushioning effect as the spring that sets up as above, reduce the bridge floor at the ascending vibration range of vertical side to reduce the deformation volume of rubber band among the flexible seam device.
Preferably, a clamping groove is formed in the side face, close to the expansion joint, of each upper side beam section steel; all be equipped with No. two joint groove on the both sides face of center sill shaped steel, every all being connected one between No. two joint groove and a relative joint groove the rubber tape, the both sides of rubber tape are equipped with rubber connector, one of them one side rubber connector joint of rubber tape is in No. one joint inslot, the opposite side rubber connector joint of rubber tape is in No. two joint inslots.
By adopting the technical scheme, the rubber belt connects the buffer device with the boundary beam section steel on two sides of the expansion joint to form an integral expansion joint device; the rubber belt has the functions of preventing water and dust and preventing sundries from entering the expansion joint.
Preferably, the lower surface of well roof beam shaped steel is equipped with the joint slider, it is equipped with the joint spout to erect the upper surface of a supporting beam, joint slider slidable ground joint is in the joint spout.
Through adopting above-mentioned technical scheme, relative slip can take place for well beam shaped steel and perpendicular supporting beam on bridge floor width direction, and can not break away from each other, and when the bridge floor at expansion joint both ends produced the displacement along expansion joint length direction, well beam shaped steel followed the slip, can reduce the deformation volume of connecting the rubber tape between the two.
Preferably, the surface of joint slider is equipped with the steel sheet, the inner wall of joint spout is equipped with the lubricant film, it is equipped with the lubricant film to erect a supporting beam's upper surface, the lower surface of centre sill shaped steel is equipped with the steel sheet.
By adopting the technical scheme, the lubricating layer and the steel plate arranged on the contact surface between the middle beam section steel and the vertical supporting beam reduce the friction force of a friction pair formed by the middle beam section steel and the vertical supporting beam.
Preferably, a lubricating layer is arranged on the side wall of the cylindrical rod; the lower surface of the vertical support beam is provided with a minor arc column type upper groove, the inner wall of the minor arc column type upper groove is provided with a layer of steel plate, and part of the side wall of the cylindrical rod is abutted against the minor arc column type upper groove; the upper surface of the cross supporting beam is provided with a minor arc column type lower groove, and the cylindrical rod is fixedly connected to the minor arc column type lower groove.
By adopting the technical scheme, the vertical supporting beam can be tightly attached to the side wall of the cylindrical rod and rotate in a small angle around the central axis in the length direction of the cylindrical rod, and when the vertical supporting beam rotates, the middle beam profile steel clamped on the vertical supporting beam is driven, so that the deformation amount of a rubber belt in the telescopic seam device can be reduced; and the steel plate and the lubricating layer arranged on the contact surface of the cylindrical rod and the vertical supporting beam reduce the friction force of a friction pair formed by the cylindrical rod and the vertical supporting beam.
Preferably, a plurality of second springs are arranged between the lower surface of the vertical support beam and the upper surface of the transverse support beam.
Through adopting above-mentioned technical scheme, No. two springs will erect supporting beam and cross support roof beam and be connected, and can cushion the power between the two.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the buffer device can buffer the force borne by the bridge deck, and reduce the deformation quantity of the bridge deck and the displacement quantity of the bridge deck so as to reduce the deformation quantity of the rubber belt, thereby reducing the probability of damage of the expansion joint device;
2. the spring arranged between the groove of the transverse supporting beam and the groove of the edge beam section steel can reduce the deformation amount of the rubber belt in the vertical direction, the friction pair formed by the middle beam section steel and the vertical supporting beam can reduce the deformation amount of the rubber belt in the length direction of the expansion joint, and the friction pair formed by the vertical supporting beam and the cylindrical rod fixed on the transverse supporting beam can reduce the deformation amount of the rubber belt in the width direction of the expansion joint;
3. the contact surface of the friction pair is respectively provided with a steel plate and a lubricating layer, so that the friction force of the friction pair is reduced.
Drawings
Fig. 1 is an overall schematic view of an expansion joint device according to the present application;
fig. 2 is a side view of an expansion joint device according to the present invention taken along the width direction of a bridge;
fig. 3 is an enlarged schematic view of a part of the structure of an expansion joint device according to the present application.
Description of reference numerals: 1. edge beam profile steel; 11. a roof side rail profile steel; 12. lower boundary beam section steel; 2. a rubber belt; 3. anchoring the reinforcing steel bars; 4. center sill section steel; 5. erecting a support beam; 6. a cross support beam; 7. a cylindrical rod; 8. a spring; 9. a groove; 10. a first clamping groove; 13. a second clamping groove; 14. clamping the sliding block; 15. clamping the sliding chute; 16. a lubricating layer; 17. a minor arc column type upper groove; 18. a minor arc column type lower groove; 19. a second spring; 20. and (3) a steel plate.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses an expansion joint device. Referring to fig. 1 or fig. 2, an expansion joint device includes two boundary beam section steels 1, two rubber belts 2, an anchoring reinforcing steel bar 3, and a buffer device, which are disposed at two sides of the expansion joint. Boundary beam shaped steel 1 includes boundary beam shaped steel 11 and boundary beam shaped steel 12, and anchor reinforcing bar 3 is established on the lateral wall at expansion joint is kept away from to boundary beam shaped steel 1, and buffer is located between two boundary beam shaped steel 1, and buffer all is connected through rubber tape 2 with every boundary beam shaped steel 1, and buffer links to each other with a plurality of springs 8 through two rubber tape 2 with boundary beam shaped steel 1.
Buffer can cushion the power that the bridge floor received, reduces the deformation volume of bridge floor and the displacement volume of bridge floor to reduce the deformation volume of rubber tape 2, thereby reduce the damaged probability of rubber tape 2.
The buffer device comprises a centre sill section steel 4, a vertical supporting beam 5, a cylindrical rod 7, a transverse supporting beam 6 and a plurality of springs 8 from top to bottom in sequence. All be equipped with No. two joint groove 13 on the both sides face of center sill shaped steel 4, the side that roof side beam shaped steel 11 is close to the expansion joint is equipped with a joint groove 10, all is being connected a rubber tape 2 between every No. two joint groove 13 and its relative a joint groove 10, and the both sides of rubber tape 2 are equipped with rubber joint 21, and wherein one side rubber joint 21 joint of rubber tape 2 is in a joint groove 10, and the opposite side rubber joint 21 joint of rubber tape 2 is in No. two joint grooves 13.
The lower surface of centre sill shaped steel 4 is equipped with joint slider 14, and the upper surface of erecting a supporting beam 5 is equipped with joint spout 15, and joint slider 14 slidable ground joint is in joint spout 15, and both can not break away from each other. When the bridge floor at the two ends of the expansion joint produces displacement along the length direction of the expansion joint, the middle beam section steel 4 and the vertical supporting beam 5 slide, so that the relative displacement between the boundary beam section steel connected at the two ends of the rubber belt 2 and the middle beam section steel 4 is reduced, and the effect of reducing the deformation of the rubber belt 2 is achieved.
The lower surface of the vertical supporting beam 5 is provided with a minor arc column type upper groove 17, the upper surface of the transverse supporting beam 6 is provided with a minor arc column type lower groove 18, and the cylindrical rod 7 is connected between the lower surface of the vertical supporting beam 5 and the upper surface of the transverse supporting beam 6. The length direction of the cylindrical rod 7 is consistent with that of the expansion joint, part of the side wall of the cylindrical rod 7 is tightly attached to the inferior arc column type upper groove 17, and part of the side wall is tightly attached to the inferior arc column type lower groove 18. The cylindrical rod 7 is fixedly connected with the inferior arc column type lower groove 18 through a pin.
The lower surface of the vertical supporting beam 5 is connected with the upper surface of the transverse supporting beam 6 through a plurality of second springs 19.
When the bridge floor at both ends of expansion joint takes place along the relative displacement of expansion joint width direction, erect supporting beam 5 and can hug closely the lateral wall of cylinder pole 7 and do the small-angle rotation around the center pin of cylinder pole 7 length direction, and can not drive horizontal supporting beam 6. Because well roof beam shaped steel 4 and the mutual joint of a vertical supporting beam 5, can drive well roof beam shaped steel 4 when a vertical supporting beam 5 is rotatory and rotate to reduce the relative displacement between the well roof beam shaped steel 4 and the boundary beam shaped steel 1 of connecting at 2 both ends of rubber tape, reduce the deformation volume of rubber tape 2. Because the second spring 19 is connected between the vertical support beam 5 and the transverse support beam 6, when the vertical support beam 5 rotates, the second spring 19 can provide a reaction force for the vertical support beam 5 to accelerate the reset of the vertical support beam 5; in addition, the second spring 19 can also buffer the acting force of the vertical support beam 5 on the transverse support beam 6.
The side of the lower boundary beam section steel 12 close to the expansion joint is provided with a groove 9, the two ends of the cross support beam 6 extend into the groove 9, and a plurality of springs 8 are connected between the upper surface of the cross support beam 6 and the upper wall of the groove 9 and between the lower surface of the cross support beam 6 and the lower wall of the groove 9.
When the bridge floor at both ends of expansion joint takes place along vertical direction's relative displacement, establish the buffer between two boundary beam shaped steel 1 and also can reciprocate to reduce the relative displacement between well roof beam shaped steel 4 and the boundary beam shaped steel 1, thereby reduce the deformation volume of rubber band 2.
Referring to fig. 3, a lubricating layer 16 and a steel plate 20 are arranged between the contact surfaces of the middle beam section steel 4 and the vertical supporting beam 5, the lubricating layer 16 and the steel plate 20 are also arranged between the contact surfaces of the vertical supporting beam 5 and the cylindrical rod 7, and the material of the lubricating layer 16 can be polyethylene tetrafluoro plate. The lubricating layer 16 and the steel plate 20 reduce the friction force between the center sill-shaped steel 4 and the vertical supporting beam 5 and reduce the friction force between the vertical supporting beam 5 and the cylindrical rod 7.
The application embodiment of the utility model provides an implementation principle is: through setting up buffer, the power that the buffering bridge floor received reduces the deformation volume of bridge floor and the displacement volume of bridge floor to reduce the deformation volume of rubber tape 2, thereby reduce the damaged probability of rubber tape 2 among the flexible seam device. Specifically, the vertical force borne by the bridge deck is buffered through the springs 8 between the cross support beams 6 and the grooves 9 of the side beam profile steel 1, and the deformation amount of the rubber belt 2 in the vertical direction is reduced; through the middle beam section steel 4 and the vertical supporting beam 5 which are connected in a sliding way, the relative displacement between the edge beam section steel 1 and the middle beam section steel 4 which are connected at the two ends of the rubber belt 2 is reduced, and the deformation amount of the rubber belt 2 in the length direction of the expansion joint is reduced; through the vertical supporting beam 5, the transverse supporting beam 6 and the cylindrical rod 7 fixed on the transverse supporting beam 6 which are rotatably connected, the relative displacement between the center sill section steel 4 and the edge sill section steel 1 connected to the two ends of the rubber belt 2 is reduced, and the deformation amount of the rubber belt 2 in the width direction of the expansion joint is reduced.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides an expansion joint device, includes boundary beam shaped steel (1), rubber tape (2), anchor reinforcing bar (3), boundary beam shaped steel (1) is including establishing two boundary beam shaped steel (1) in the expansion joint both sides, anchor reinforcing bar (3) are connected one side at the expansion joint is kept away from in boundary beam shaped steel (1), its characterized in that: the device also comprises a buffer device, wherein the buffer device is positioned between the two side beam section steels (1); the buffer device is connected with each edge beam section steel (1) through the rubber belt (2); the buffer device comprises a center sill section steel (4), a vertical supporting beam (5), a transverse supporting beam (6), a cylindrical rod (7) and a spring (8), wherein the vertical supporting beam (5) is connected below the center sill section steel (4), the length direction of the cylindrical rod (7) is consistent with the length direction of an expansion joint, the cylindrical rod (7) abuts against the lower part of the vertical supporting beam (5), and the transverse supporting beam (6) is connected below the cylindrical rod (7); the cross support beam (6) is connected with the two side beam section steels (1) through springs (8).
2. An expansion joint installation according to claim 1, wherein: the side beam section steel (1) comprises an upper side beam section steel (11) and a lower side beam section steel (12), and a groove (9) is formed in the side surface, close to the expansion joint, of the lower side beam section steel (12); two side edges of the transverse supporting beam (6) extend into the grooves (9) of the lower edge beam section steel (12) positioned at two sides of the expansion joint; and a plurality of springs (8) are arranged between the cross support beam (6) and the lower side beam section steel (12).
3. An expansion joint installation according to claim 2, wherein: the springs (8) are respectively arranged between the upper surface of the cross supporting beam (6) and the upper wall of the groove (9), and between the lower surface of the cross supporting beam (6) and the lower wall of the groove (9).
4. An expansion joint installation according to claim 2, wherein: the side surface of each upper edge beam section steel (11) close to the expansion joint is provided with a clamping groove (10); all be equipped with No. two joint groove (13) on the both sides face of center sill shaped steel (4), every all being connected one between No. two joint groove (13) and a relative joint groove (10) rubber tape (2), the both sides of rubber tape (2) are equipped with rubber joint (21), wherein one side rubber joint (21) joint of rubber tape (2) is in a joint groove (10), opposite side rubber joint (21) joint of rubber tape (2) is in No. two joint groove (13).
5. An expansion joint installation according to claim 1, wherein: the lower surface of well roof beam shaped steel (4) is equipped with joint slider (14), the upper surface of erecting a supporting beam (5) is equipped with joint spout (15), joint slider (14) slidable ground joint is in joint spout (15).
6. An expansion joint installation according to claim 5, wherein: the surface of joint slider (14) is equipped with steel sheet (20), the inner wall of joint spout (15) is equipped with lubricating layer (16), the upper surface of erecting supporting beam (5) is equipped with lubricating layer (16), the lower surface of centre sill shaped steel (4) is equipped with steel sheet (20).
7. An expansion joint installation according to claim 1, wherein: a lubricating layer (16) is arranged on the side wall of the cylindrical rod (7); a minor arc column type upper groove (17) is formed in the lower surface of the vertical support beam (5), a layer of steel plate (20) is arranged on the inner wall of the minor arc column type upper groove (17), and part of the side wall of the cylindrical rod (7) is abutted to the minor arc column type upper groove (17); the upper surface of the cross support beam (6) is provided with a minor arc column type lower groove (18), and the cylindrical rod (7) is fixedly connected to the minor arc column type lower groove (18).
8. An expansion joint installation according to claim 1, wherein: a plurality of second springs (19) are arranged between the lower surface of the vertical supporting beam (5) and the upper surface of the transverse supporting beam (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022065807.7U CN213896739U (en) | 2020-09-18 | 2020-09-18 | Expansion joint device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022065807.7U CN213896739U (en) | 2020-09-18 | 2020-09-18 | Expansion joint device |
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| Publication Number | Publication Date |
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| CN213896739U true CN213896739U (en) | 2021-08-06 |
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| CN202022065807.7U Active CN213896739U (en) | 2020-09-18 | 2020-09-18 | Expansion joint device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114991000A (en) * | 2022-05-05 | 2022-09-02 | 广西交科集团有限公司 | Expansion joint structure of simply supported beam bridge and design method thereof |
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2020
- 2020-09-18 CN CN202022065807.7U patent/CN213896739U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114991000A (en) * | 2022-05-05 | 2022-09-02 | 广西交科集团有限公司 | Expansion joint structure of simply supported beam bridge and design method thereof |
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