CN211815552U - Automatic pavement expansion joint device that adapts to difference in height and shifts - Google Patents
Automatic pavement expansion joint device that adapts to difference in height and shifts Download PDFInfo
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- CN211815552U CN211815552U CN201922020451.2U CN201922020451U CN211815552U CN 211815552 U CN211815552 U CN 211815552U CN 201922020451 U CN201922020451 U CN 201922020451U CN 211815552 U CN211815552 U CN 211815552U
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- expansion joint
- sliding cover
- cover plate
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Abstract
The utility model discloses an automatic adapt to pavement expansion joint device that discrepancy in elevation shifted, including anchor coupling assembling, anchor coupling assembling is connected with the slip apron subassembly, slip apron subassembly below is equipped with the supporting steel plate subassembly, anchor coupling assembling, supporting steel plate subassembly respectively with the concrete fixed connection of expansion joint both sides, the slip apron subassembly is located the top at supporting steel plate subassembly, expansion joint. The device provides a larger horizontal displacement by adopting an aging-resistant all-metal component; through the adoption anchor coupling assembling that has the spring, vertical displacement and rotation displacement have been realized to vertical displacement difference and the longitudinal rotation that can adapt to expansion joint both sides structure automatically, and then guarantee the smooth-going linking of expansion joint both sides difference in height.
Description
Technical Field
The utility model relates to a bridge building technical field particularly, relates to an automatic adapt to pavement expansion joint device that discrepancy in elevation shifted.
Background
The footpath expansion joint device is a part of a bridge footpath member and is arranged for adapting to the deformation of a bridge caused by temperature, vibration and the like and ensuring the safety, comfort and durability of the bridge in the walking process of pedestrians. Although the bridge auxiliary member is the bridge auxiliary member, the importance of the bridge auxiliary member is not negligible.
In recent years, the damage of bridge, especially bridge deck system, is the most serious damage of expansion joint. After the concrete member is damaged, rainwater permeates into the beam body, so that the reinforcing steel bars are rusted, and the concrete member is frequently damaged. The reason for this is that current footpath expansion joint can only satisfy in the same direction as the horizontal displacement of bridge because simple structure, in case take place the poor or certain rotational displacement of both sides vertical displacement, just can not satisfy the deformation requirement, leads to the expansion joint damage. Such as bridge head subsidence, and seismic damage to the bridge structure.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned technical problem among the correlation technique, the utility model provides an automatic adapt to pavement expansion joint device that discrepancy in elevation shifted can overcome the above-mentioned not enough of prior art.
In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows:
a footpath expansion joint device capable of automatically adapting to altitude difference deflection comprises an anchoring connection assembly, wherein the anchoring connection assembly is connected with a sliding cover plate assembly, a supporting steel plate assembly is arranged below the sliding cover plate assembly, the anchoring connection assembly and the supporting steel plate assembly are respectively and fixedly connected with concrete on two sides of an expansion joint, and the sliding cover plate assembly is positioned above the supporting steel plate assembly and the expansion joint;
the anchoring connection assembly comprises a U-shaped channel steel, the upper part of the U-shaped channel steel is connected with the sliding cover plate assembly through a bolt, the bottom of the U-shaped channel steel and one side of the U-shaped channel steel are respectively connected with a second shear nail in a welding mode, and the U-shaped channel steel is connected with a first concrete area on one side of the expansion joint through the second shear nail;
the sliding cover plate assembly comprises a sliding cover plate, and a rubber cushion layer and silane sealant are sequentially arranged between the sliding cover plate and the U-shaped channel steel;
the supporting steel plate assembly comprises a supporting steel plate, the bottom of the supporting steel plate is connected with the first shear nail in a welding mode, and the supporting steel plate is connected with the second concrete area on the other side of the expansion joint through the first shear nail.
Furthermore, the upper part of the sliding cover plate is provided with an anti-skid groove.
Furthermore, the bolt sequentially penetrates through the sliding cover plate assembly, the upper part of the U-shaped channel steel, the spring, the gasket and the nut from top to bottom, and the bolt is in threaded connection with the nut.
Furthermore, a water chute is arranged in the expansion joint and is installed on the side face of the concrete area II.
Further, a gap is formed between the sliding cover plate and the supporting steel plate.
The utility model has the advantages that: by adopting the aging-resistant all-metal component, a larger horizontal displacement amount is provided; through the adoption anchor coupling assembling that has the spring, vertical displacement and rotation displacement have been realized to vertical displacement difference and the longitudinal rotation that can adapt to expansion joint both sides structure automatically, and then guarantee the smooth-going linking of expansion joint both sides difference in height.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic cross-sectional view of a device for expansion joint of footpath according to an embodiment of the present invention, which is capable of automatically adapting to height difference displacement;
fig. 2 is a schematic view of an anchor connection assembly according to an embodiment of the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
fig. 4 is a cross sectional view of the device for expansion joint of footpath according to the embodiment of the present invention;
fig. 5 is a top view of a device for expansion joint of footpath according to an embodiment of the present invention, which can automatically adapt to height difference displacement;
in the figure: 1. anchor coupling assembling, 2, sliding cover board subassembly, 3, supporting steel plate subassembly, 4, supporting steel plate, 5, shear force nail one, 6, sliding cover board, 7, antiskid groove, 8, U-shaped channel-section steel, 9, shear force nail two, 10, silane sealant, 11, rubber cushion, 12, bolt, 13, nut, 14, spring, 15, gasket, 16, guiding gutter, 17, concrete region two, 18, concrete region one, 19, expansion joint, 20, space.
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 in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
As shown in fig. 1-5, the device for automatically adapting to the step expansion joint of the walking path according to the embodiment of the present invention comprises an anchoring connection assembly 1, wherein the anchoring connection assembly 1 is connected with a sliding cover plate assembly 2, a supporting steel plate assembly 3 is arranged below the sliding cover plate assembly 2, and the sliding cover plate assembly 2 is located above the supporting steel plate assembly 3 and the expansion joint 19;
the anchoring connection assembly 1 comprises a U-shaped channel steel 8, the upper part of the U-shaped channel steel 8 is connected with the sliding cover plate assembly 2 through a bolt 12, the bottom of the U-shaped channel steel 8 and one side of the U-shaped channel steel 8 are respectively connected with a second shear nail 9 in a welding mode, and the U-shaped channel steel 8 is fixed in a first concrete area 18 on one side of the expansion joint 19 through the second shear nail 9;
the sliding cover plate assembly 2 comprises a sliding cover plate 6, and a rubber cushion layer 11 and a silane sealant 10 are sequentially arranged between the sliding cover plate 6 and the U-shaped channel steel 8;
the supporting steel plate assembly 3 comprises a supporting steel plate 4, the bottom of the supporting steel plate 4 is connected with a first shear nail 5 in a welded mode, the supporting steel plate 4 is fixed in a second concrete area 17 on the other side of the expansion joint 19 through the first shear nail 5, the thickness of the supporting steel plate 4 is changed on the side of the sliding cover plate 6, and a gap 20 is formed between the sliding cover plate 6 and the supporting steel plate 4.
Anchor coupling assembling 1 and supporting steel plate subassembly 3 are pre-buried respectively in the concrete region two 17 of expansion joint 19 both sides in advance, concrete region 18, reserve certain angle of inclination before the concrete pouring prerequisite, the incline direction of anchor coupling assembling 1 and supporting steel plate subassembly 3 is to the inboard slope of expansion joint 19, have certain space (see figure 1) between the roof of guaranteeing to slide cover 6 installation back and backup pad 4 and U-shaped channel-section steel 8, later be connected slide cover subassembly 2 and anchor coupling assembling 1 through bolt 12.
Before the sliding cover plate 6 is installed, the water chute 16 needs to be installed on the side surface of the second concrete area 17 in the expansion joint 19, and the water chute is obliquely arranged so as to collect rainwater leaked from the space between the supporting steel plate 4 and the sliding cover plate 6 into the water chute 16 and guide the rainwater to the outer side of the bridge. The rubber cushion layer 11 is arranged on the U-shaped channel steel 8, the sliding cover plate 6 is installed and the bolt 12 is screwed, the sliding cover plate 6 is freely lapped on the supporting steel plate 4, horizontal displacement of two sides of a bridge along the bridge direction can be met, and meanwhile, due to the fact that a certain gap is formed between the sliding cover plate 6 and the top plates of the supporting steel plate 4 and the U-shaped channel steel 8 and the constraint effect of the pre-tightening spring 14, the expansion joint 19 can automatically adapt to vertical deformation and rotation of two sides of the expansion joint. The gap between the sliding cover plate 6 and the concrete area 18 is filled with silane sealant 10 to prevent rainwater from leaking into the anchoring connection assembly 1 or the bridge structural member.
The upper portion of sliding cover 6 is carved with anti-skidding groove 7, U-shaped channel-section steel 8 is welded into whole by the roof that is located upper portion, the curb plate that is located the middle part and the bottom plate that is located the bottom (roof, curb plate, bottom plate are the steel sheet), U-shaped channel-section steel 8 still is equipped with stiffening rib, reserves certain inclination to the seam inboard when U-shaped channel-section steel is pre-buried in order to guarantee to have certain clearance in order to adapt to the rotation of sliding cover 6 with sliding cover 6 within a definite time.
The bolt 12 sequentially penetrates through the sliding cover plate assembly 2, a top plate of the U-shaped channel steel 8, a spring 14, a gasket 15 and a nut 13 from top to bottom, and the bolt 12 is in threaded connection with the nut 13. The anchoring connection assembly 1 needs to weld the spring 14, the gasket 15 and the nut 13 below the top plate of the U-shaped channel steel 8 in advance, so that the bolt 12 is not slid when being screwed down.
The deformation of the two ends of the expansion joint of the bridge pedestrian path mainly comprises displacement along the bridge direction, displacement along the transverse bridge direction, displacement in the vertical direction and corner displacement of the beam end, such as front-back movement or left-right movement of one end of the expansion joint, and the conventional expansion joint can also adapt. Once one end of the expansion joint sinks, the sliding cover plate of the common expansion joint and the support steel plate 4 generate dislocation and gaps; if one end of the expansion joint moves upwards, the sliding cover plate of the common expansion joint can be broken by being stuck up; the same damage can be caused by the rotation of one end of the expansion joint.
The utility model can avoid the occurrence of such diseases, when one end of the expansion joint sinks, the sliding cover plate can sink along with the expansion joint near one end side due to the restraining tension of the spring in the anchoring connection component; if one end of the expansion joint moves upwards, the sliding cover plate can rotate around the anchoring connection assembly side; no matter any one end in the expansion joint both ends takes place the displacement of vertical direction and the corner displacement of beam-ends equally, sliding cover all can adapt to its deformation through rotating around anchor coupling assembling side, guarantees the smooth-going connection of both sides beam-ends, provides safety guarantee and travelling comfort for the pedestrian.
An included angle gap or a rubber cushion layer is arranged between the sliding cover plate and the supporting steel plate as well as between the sliding cover plate and the U-shaped channel steel, so that a condition is provided for the sliding cover plate to adapt to displacement deflection in the vertical direction at two ends of the expansion joint; meanwhile, the sliding cover plate is connected with the anchoring connection assembly through the spring and the bolt, and due to the constraint force of the spring, the sliding cover plate can be in close contact with the bridge beam end under the condition that the expansion joint is vertically staggered, so that the safety and the comfort of pedestrians are guaranteed.
Therefore, the utility model discloses a pavement expansion joint device except having the characteristics in the past expansion joint, adapt to the horizontal migration in the same direction as the bridge of bridge beam end promptly (extension and the shortening of expansion joint 9 in fig. 1), the horizontal migration in the horizontal bridge direction of bridge beam end (as the horizontal dislocation between bridge beam both ends concrete region two 17, the concrete region 18 in fig. 1), can also adapt to the displacement of the vertical direction at bridge both ends (as the vertical displacement difference between bridge beam both ends concrete region two 17, the concrete region 18 in fig. 1).
To sum up, with the aid of the above technical scheme of the utility model, the utility model discloses a footpath expansion joint device can enough adapt to the horizontal displacement of bridge both sides, can also adapt to the vertical displacement and the rotation of bridge both sides simultaneously to reach often along with vertical and rotation displacement and change. When the structure receives unfavorable operating modes such as temperature effect and earthquake vibrations, can satisfy its demand that shifts, guarantee that the expansion joint is wrong platform, damaged. Therefore, the safety and comfort of pedestrians are guaranteed, and the maintenance cost of the expansion joint structure of the footpath and the durability of the main stress member for years is reduced.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The device is characterized by comprising an anchoring connection assembly (1), wherein the anchoring connection assembly (1) is connected with a sliding cover plate assembly (2), a supporting steel plate assembly (3) is arranged below the sliding cover plate assembly (2), the anchoring connection assembly (1) and the supporting steel plate assembly (3) are respectively and fixedly connected with concrete on two sides of an expansion joint (19), and the sliding cover plate assembly (2) is positioned above the supporting steel plate assembly (3) and the expansion joint (19);
the anchoring connection assembly (1) comprises a U-shaped channel steel (8), the upper part of the U-shaped channel steel (8) is connected with the sliding cover plate assembly (2) through a bolt (12), the bottom of the U-shaped channel steel (8) and one side of the U-shaped channel steel (8) are respectively connected with a second shear nail (9) in a welding mode, and the U-shaped channel steel (8) is connected with a first concrete area (18) on one side of the expansion joint (19) through the second shear nail (9);
the sliding cover plate assembly (2) comprises a sliding cover plate (6), and a rubber cushion layer (11) and a silane sealant (10) are sequentially arranged between the sliding cover plate (6) and the U-shaped channel steel (8);
the supporting steel plate assembly (3) comprises a supporting steel plate (4), the bottom of the supporting steel plate (4) is connected with the first shear nail (5) in a welding mode, and the supporting steel plate (4) is connected with the second concrete area (17) on the other side of the expansion joint (19) through the first shear nail (5).
2. The device for expansion joint of footpath capable of automatically adapting to height difference displacement according to claim 1, wherein the upper part of the sliding cover plate (6) is provided with an anti-skid groove (7).
3. The device for expanding seam of footpath with automatic adapting to height difference displacement as claimed in claim 1, wherein the bolt (12) passes through the sliding cover plate component (2), the upper part of the U-shaped channel steel (8), the spring (14), the gasket (15) and the nut (13) from top to bottom in sequence, and the bolt (12) is in threaded connection with the nut (13).
4. The device for expansion joint of footpath capable of automatically adapting to height difference displacement as claimed in claim 1, wherein a water chute (16) is arranged in the expansion joint (19), and the water chute (16) is installed on the side surface of the second concrete area (17).
5. The device for expansion joint of footpath capable of automatically adapting to height difference displacement according to claim 1, wherein a gap (20) is arranged between the sliding cover plate (6) and the supporting steel plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922020451.2U CN211815552U (en) | 2019-11-21 | 2019-11-21 | Automatic pavement expansion joint device that adapts to difference in height and shifts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922020451.2U CN211815552U (en) | 2019-11-21 | 2019-11-21 | Automatic pavement expansion joint device that adapts to difference in height and shifts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211815552U true CN211815552U (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922020451.2U Active CN211815552U (en) | 2019-11-21 | 2019-11-21 | Automatic pavement expansion joint device that adapts to difference in height and shifts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211815552U (en) |
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- 2019-11-21 CN CN201922020451.2U patent/CN211815552U/en active Active
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