CN215561899U - Pre-compression elastic structure for railway bridge - Google Patents
Pre-compression elastic structure for railway bridge Download PDFInfo
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- CN215561899U CN215561899U CN202121442572.7U CN202121442572U CN215561899U CN 215561899 U CN215561899 U CN 215561899U CN 202121442572 U CN202121442572 U CN 202121442572U CN 215561899 U CN215561899 U CN 215561899U
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Abstract
The utility model relates to a pre-compression elastic structure for a railway bridge, which comprises beam bodies, an expansion joint arranged between the two beam bodies and elastic supporting pieces arranged in the expansion joint and with two ends respectively contacted with the two beam bodies, wherein the elastic supporting pieces are arranged on the two beam bodies; the utility model adds the pre-compression elastic supporting piece in the expansion joint, when the gap of the expansion joint is enlarged, the elastic supporting piece is always in a compression state and keeps a close contact state with the end surface of the beam, thereby achieving the sealing effect.
Description
Technical Field
The utility model relates to a pre-compression elastic structure for a railway bridge.
Background
In the bridge work progress, the expansion joint between two roof beam bodies mostly need fill the elastomer, but receives expend with heat and contract with cold's influence, when the width grow of expansion joint, the condition of declutching probably appears between roof beam body and elastomer, influences the normal use of expansion joint.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a pre-compression elastic structure for a railway bridge, which can always keep a connection state with beam bodies at two ends when the distance between expansion joints changes.
The utility model provides a railway bridge is with elasticity structure of precompression, its includes the roof beam body, sets up the expansion joint between two roof beam bodies and sets up in the expansion joint and both ends respectively with two roof beam body contact's elastic support spare.
Furthermore, the elastic supporting part is a compression elastic part consisting of an elastic plate or a plurality of compression elastic rings connected in sequence.
Furthermore, the elastic plate is a single or continuous energy storage compression folded plate, or an energy storage compression fan-shaped plate, or an energy storage compression waist-shaped plate, and the elastic plate is in a compression state and keeps the trend of expanding towards two sides.
Further, the width of the elastic supporting piece after being completely stretched is larger than that of the expansion joint.
Furthermore, the elastic plate comprises a plurality of single plates, a hinge and an elastic resetting device, wherein the end parts of the single plates are sequentially connected with each other;
the elastic reset device comprises mounting grooves formed in the end portions of two adjacent single plates and springs with two ends respectively and correspondingly mounted in the two mounting grooves.
Furthermore, the elastic reset device further comprises an elastic sleeve, the elastic sleeve is sleeved on the spring, and two ends of the elastic sleeve respectively extend into the two adjacent mounting grooves.
Furthermore, the end part of the single plate is in arc transition.
Furthermore, connecting plates are arranged at two ends of the elastic plate or the compression elastic piece and are connected with the beam body.
Furthermore, the horizontal outer contour of the elastic supporting piece is wholly trapezoidal.
Furthermore, the connecting plate is bonded with the beam body.
The utility model has the positive effects that:
the utility model adds the pre-compression elastic supporting piece in the expansion joint, when the gap of the expansion joint is enlarged, the elastic supporting piece is always in a compression state and keeps a close contact state with the end surface of the beam, thereby achieving the sealing effect.
Drawings
FIG. 1 is a schematic structural view of example 1 of the present invention;
FIG. 2 is a schematic structural diagram of embodiment 2 of the present invention;
FIG. 3 is a schematic structural diagram according to embodiment 3 of the present invention;
FIG. 4 is a schematic structural diagram according to embodiment 4 of the present invention;
FIG. 5 is a schematic diagram of an elastic plate structure according to embodiment 1 of the present invention;
FIG. 6 is an enlarged view taken at A of FIG. 5 in accordance with the present invention;
FIG. 7 is a schematic view of the elastic sleeve and the spring according to the present invention.
Detailed Description
Example 1
As shown in fig. 1, the present invention includes a beam body 1, an expansion joint 2 disposed between the two beam bodies 1, and an elastic supporting member disposed in the expansion joint and having two ends respectively contacting the two beam bodies 1.
The width of elastic support member after the complete extension is greater than the width at expansion joint 2, after it was installed at the expansion joint, was in compression state, had the trend of outside extension all the time, and its both ends continuously exert pressure to the tip of roof beam body 1, and when the width at expansion joint changed, elastic support member also can be along with changing under the effect of elastic force, guaranteed elastic support member and roof beam body 1's contact.
In the present embodiment, the elastic support is an elastic plate 4, consisting of a single or continuous energy-accumulating compression flap.
Example 2
As shown in fig. 2, in the present embodiment, the structure of the elastic plate 4 is changed into an energy storage compression sector plate form, and after the elastic plate is installed in place, the energy storage compression sector plate is compressed to store energy, and always keeps the trend of extending outwards, so as to ensure that the elastic plate is connected with the two beam bodies 1.
Example 3
As shown in fig. 3, in this embodiment, the structural energy storage compression waist-shaped plate of the elastic plate 4 is in a compression waist-shaped plate form, and after the installation in place, the energy storage compression waist-shaped plate is compressed and stored, and always keeps the outward extension trend, so as to ensure that the connection with the two beam bodies 1 is formed.
Example 4
As shown in fig. 4, in the present embodiment, the elastic supporting member is a compression elastic member 5 composed of a plurality of compression elastic rings connected in sequence, and the compression elastic rings are in a compression state after being installed in place, and have a tendency to return to their original state (i.e. a tendency to move outward).
Example 5
As shown in fig. 5-7, the elastic plate 4 includes a single or several single plates 6 with their ends connected in sequence, and a hinge 7 and an elastic return device disposed between two adjacent single plates 6.
The elastic reset device comprises mounting grooves 10 arranged at the end parts of two adjacent single plates 6 and springs 8 with two ends respectively and correspondingly mounted in the two mounting grooves 10, elastic sleeves 9 are sleeved outside the springs 8, and the two ends of each elastic sleeve 9 are respectively positioned in the two adjacent mounting grooves 10.
During transportation, the elastic plate 4 is in a flat plate shape under the action of the spring 8. When the installation, a plurality of veneer 6 is the V-arrangement for elastic plate 4 wholly is the form of buckling, and spring 8 is buckled and is in the tensile state all the time this moment, makes spring 8 have the pulling force, makes elastic plate 4 have the trend of resumeing the flat board state all the time (also make whole elastic plate 4 have the trend of outside extension all the time), and when the width at expansion joint changed, the width of elastic plate 4 also can change thereupon.
Preferably, in order to facilitate the plurality of single plates 6 to form a continuous V-shape, one side of the end of the single plate 6 located inside the V-row is in arc transition, and the other side is in a right angle. The hinge 7 is also arranged at the inner side of the V-shape, so that the elastic plate 4 can be conveniently formed into a continuous bending shape during installation. The elastic plate 4 is flat when not installed, so that the transportation is convenient, and the space required during the transportation is saved. If the torsion spring is arranged between the two single plates 6 to realize the elasticity, the function of the elastic resetting device of the embodiment is difficult to realize due to the structural limitation of the torsion spring.
Meanwhile, in order to ensure that the elastic plate 4 is watertight, a waterproof layer 11 is arranged on the upper surface of the elastic plate 4, a groove is formed in the position, corresponding to the hinge 7, of the single plate 6, and the hinge is installed in the groove.
As a further improvement of the utility model, the horizontal outer contour of the elastic supporting element can be entirely trapezoidal. And connecting plates 3 are respectively and fixedly installed at both ends of the elastic plate 4 or the compression elastic member 5, and are connected with the beam body 3 through the connecting plates 3.
According to the utility model, the elastic support piece with elasticity is arranged in the expansion joint 2, after the elastic support piece is arranged in place, the elastic support piece is in a compressed state, and the width after the elastic support piece is completely extended is larger than the width of the expansion joint 2, when the width of the expansion joint 2 is changed, the elastic support piece can be changed along with the expansion joint, so that two ends of the elastic support piece are always in contact with the beam body 1.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a railway bridge is with elasticity structure of precompression which characterized in that it includes the roof beam body (1), sets up expansion joint (2) between two roof beam bodies (1) and sets up in the expansion joint and both ends respectively with the elastic support piece of two roof beam body (1) contacts.
2. A pre-compressed elastic structure for railroad bridges according to claim 1, wherein said elastic supporting member is an elastic plate (4) or a compression elastic member (5) consisting of several compression elastic rings connected in series.
3. The pre-compressed elastic structure for railroad bridges of claim 2, wherein the elastic plate (4) is a single or continuous energy-storing compression flap plate, or an energy-storing compression sector plate, or an energy-storing compression waist plate, and the elastic plate (4) is in a compressed state and maintains a tendency of expanding towards both sides.
4. A pre-compressed elastic structure for railroad bridges, according to claim 2, characterized in that the width of said elastic supports after being fully extended is greater than the width of the expansion joints (2).
5. The pre-compressed elastic structure for the railroad bridge according to claim 2, wherein the elastic plate (4) comprises a plurality of single plates (6) whose ends are connected in sequence, and a hinge (7) and an elastic resetting device which are arranged between the two single plates (6);
the elastic reset device comprises mounting grooves (10) formed in the end portions of two adjacent single plates (6) and springs (8) with two ends respectively and correspondingly mounted in the two mounting grooves (10).
6. The pre-compressed elastic structure for the railroad bridge according to claim 5, wherein the elastic restoring device further comprises an elastic sleeve (9), the elastic sleeve (9) is sleeved on the spring (8) and two ends of the elastic sleeve respectively extend into two adjacent mounting grooves (10).
7. A pre-compressed elastic structure for railroad bridges according to claim 5 or 6, characterized in that the ends of said single plates (6) are in the form of circular arc transitions.
8. The pre-compressed elastic structure for the railroad bridge according to claim 2, wherein the elastic plate (4) or the compression elastic member (5) is provided at both ends thereof with connecting plates (3), and the connecting plates (3) are connected to the beam body (1).
9. The pre-compressed elastic structure for railroad bridges of claim 1, wherein the horizontal outer contour of the elastic support member is entirely trapezoidal.
10. A pre-compressed resilient structure for railroad bridges according to claim 8, wherein said connecting plates (3) are bonded to the beam body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121442572.7U CN215561899U (en) | 2021-06-28 | 2021-06-28 | Pre-compression elastic structure for railway bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121442572.7U CN215561899U (en) | 2021-06-28 | 2021-06-28 | Pre-compression elastic structure for railway bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215561899U true CN215561899U (en) | 2022-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121442572.7U Active CN215561899U (en) | 2021-06-28 | 2021-06-28 | Pre-compression elastic structure for railway bridge |
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| Country | Link |
|---|---|
| CN (1) | CN215561899U (en) |
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2021
- 2021-06-28 CN CN202121442572.7U patent/CN215561899U/en active Active
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