CN212452270U - Bearing-socket type prefabricated bridge pier connecting structure - Google Patents
Bearing-socket type prefabricated bridge pier connecting structure Download PDFInfo
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- CN212452270U CN212452270U CN202021684048.6U CN202021684048U CN212452270U CN 212452270 U CN212452270 U CN 212452270U CN 202021684048 U CN202021684048 U CN 202021684048U CN 212452270 U CN212452270 U CN 212452270U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 58
- 239000010959 steel Substances 0.000 claims abstract description 58
- 239000000463 material Substances 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims description 24
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000011440 grout Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 19
- 230000007547 defect Effects 0.000 abstract description 5
- 238000004873 anchoring Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
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Abstract
The utility model discloses a bearing-socket type prefabricated pier connection structure, which comprises a prefabricated pier body and a bearing platform, wherein a bearing platform groove is arranged on the bearing platform, a plurality of bearing platform reserved steel bars arranged along the vertical direction are pre-embedded in the bearing platform, the prefabricated pier body comprises an exposed end, a bearing and an embedded end, the bearing is provided with a plurality of steel bar slots matched with the bearing platform reserved steel bars along the circumferential direction, the free ends of the plurality of bearing platform reserved steel bars are respectively inserted into the steel bar slots, the outer wall of the embedded end is provided with a plurality of annular raised upright column shear keys, the embedded end is embedded into the bearing platform groove, the lower surface of the bearing is placed on the upper surface of the bearing platform, grouting materials are both poured in the steel bar slots and the bearing platform groove, the utility model can adopt the volume to calculate the pouring amount of the grouting materials, the gap between the bearing platform and the prefabricated pier body is larger, the phenomenon of incomplete phenomenon is avoided, the assembly, the construction fault tolerance rate is high, and the defects that potential safety hazards exist and the grouting fullness degree is not easy to check in the prior art can be overcome.
Description
Technical Field
The utility model relates to a bridge construction technical field especially relates to a bearing-prefabricated pier connection structure of socket joint formula.
Background
The traditional construction of bridge substructure in China mainly comprises manual binding and on-site pouring, while prefabricated assembly type construction is a great change of construction mode and is an important measure for promoting supply side structural reform and novel traffic infrastructure construction. The method is favorable for saving labor force, reducing construction pollution and improving engineering quality and construction efficiency, thereby developing green construction.
In the prior art, for the assembly of an upright post and a bearing platform of a bridge structure prefabricated bridge pier, a grouting sleeve and a metal corrugated pipe are embedded in the upright post or the bearing platform, and a prestressed steel strand is adopted; because the splicing modes of the three commonly used embedded parts all need to embed a large number of embedded parts such as sleeves, corrugated pipes or prestressed pipelines in the upright posts or the bearing platforms; and the traditional socket joint type connection has the defects that the grouting fullness is difficult to check, and when the steel bar anchoring is insufficient, the larger potential safety hazard exists.
In addition, there are conventional socket joints where the upper and lower structures are joined by pouring fine concrete into the cup gap, which weakens the integrity of the platform. In order to ensure the reliability of the components, the socket depth is greatly increased, and the height of the bearing platform is generally increased, so that the construction cost is greatly increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a bearing-prefabricated pier connection structure of socket joint formula adopts the volume to calculate the volume of pouring of grout material, and the clearance is bigger between cushion cap and the prefabricated pier shaft, does not have not full phenomenon. The assembly construction is simple, the construction fault tolerance rate is high, and the defects of potential safety hazards, difficulty in checking the filling degree of grouting and the like in the prior art can be overcome.
In order to solve the above problem, the technical scheme of the utility model is that:
a bearing-socket type prefabricated pier connecting structure comprises a prefabricated pier body and a bearing platform arranged below the prefabricated pier body;
the bearing platform is provided with a bearing platform groove with an upward opening, a plurality of bearing platform reserved steel bars arranged in the vertical direction are pre-embedded in the bearing platform, the plurality of bearing platform reserved steel bars are distributed on the outer side of the bearing platform groove along the circumference, and the bearing platform reserved steel bars extend out of the upper surface of the bearing platform to form free ends with certain lengths;
prefabricated pier shaft is from last to including exposing end, bearing and embedded end down in proper order, the bearing along the circumferencial direction seted up with a plurality of reinforcing bar slots of cushion cap reservation reinforcing bar assorted, it is a plurality of the free end of cushion cap reservation reinforcing bar inserts a plurality of respectively in the reinforcing bar slot, the outer wall of embedded end sets up the bellied stand shear force key of a plurality of annular, the cross sectional shape, the size of embedded end with the cross sectional shape, the size of cushion cap recess are matched with so the embedded end can imbed in the cushion cap recess, the lower surface of bearing is shelved in on the upper surface of cushion cap, in the reinforcing bar slot and all pour the grout material in the cushion cap recess.
Preferably, the upper surface of the bearing platform is provided with a water stop ring with a coaxial bearing platform groove on the outer side of the bearing.
Preferably, a hollow first metal corrugated pipe arranged in the vertical direction is pre-buried in the bearing platform, and the first metal corrugated pipe is used as the inner wall of the bearing platform groove.
Preferably, a plurality of second metal corrugated pipes matched with the reserved steel bars of the bearing platform are pre-embedded in the bearing along the circumferential direction, and the second metal corrugated pipes are used as the inner walls of the steel bar slots.
Preferably, the reserved steel bars of the bearing platform are vertical steel bars with 90-degree hooks at the bottoms.
Preferably, the ratio of the embedding depth of the embedding end to the diameter of the embedding end is greater than or equal to 0.7.
Preferably, a plurality of gaskets are arranged between the lower surface of the bearing and the upper surface of the bearing platform, and the gaskets are used for adjusting the bearing platform to be vertically connected with the embedded end.
The utility model discloses owing to adopt above technical scheme, make it compare with prior art and have following advantage and positive effect:
1) the utility model provides a bearing-socket type prefabricated pier connecting structure, which comprises a prefabricated pier body and a bearing platform arranged below the prefabricated pier body, wherein the bearing platform is provided with a bearing platform groove with an upward opening, a plurality of bearing platform reserved steel bars arranged along the vertical direction are pre-embedded in the bearing platform, the prefabricated pier body sequentially comprises an exposed end, a bearing and an embedded end from top to bottom, the bearing is provided with a plurality of steel bar slots matched with the bearing platform reserved steel bars along the circumferential direction, the free ends of the plurality of bearing platform reserved steel bars are respectively inserted into the steel bar slots, the outer wall of the embedded end is provided with a plurality of annular raised upright post shear keys, the embedded end is embedded into the bearing platform groove, the lower surface of the bearing is placed on the upper surface of the bearing platform, grouting materials are respectively poured in the steel bar slots and the bearing platform groove, the utility model can adopt the volume to calculate the pouring amount of the grouting materials, and the gap between the bearing platform and the prefabricated, the method has the advantages of no incomplete phenomenon, simple assembly construction, high construction fault tolerance rate and capability of overcoming the defects of potential safety hazard and difficulty in checking the grouting fullness degree in the prior art.
2) The utility model provides a bearing-socket type prefabricated pier connection structure, the connection stress of the lower structure is reliable, and the durability of the system can be increased; the stress performance of the structure in the vertical direction and the horizontal direction can be the same as that of a cast-in-place pier; the performance of the connecting part is enhanced, and the damage does not occur at the connecting part; the installation of no template on site saves the material expenditure; the prefabricated parts are firm and regular, and are convenient to hoist, mount and construct; the structure positioning is accurate enough, and the construction tolerance is large; the field construction time is short, the labor cost is reduced, and the construction period can be shortened.
Drawings
Fig. 1 is a schematic view of a bearing-socket type prefabricated bridge pier connection structure provided by an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;
FIG. 3 is a schematic structural view of the platform of FIG. 1;
FIG. 4 is a schematic view illustrating pouring of grouting material in the groove of the bearing platform according to an embodiment of the present invention;
fig. 5 is a schematic view of the installation and leveling of the prefabricated pier body in the embodiment of the present invention;
fig. 6 is a schematic view illustrating socket installation of a prefabricated pier and a bearing platform according to an embodiment of the present invention;
fig. 7 is the embodiment of the utility model provides an in the steel bar slot interior pouring grout material's schematic diagram.
Description of reference numerals:
1: prefabricating a pier body; 11: an exposed end; 12: supporting; 121: inserting a steel bar into the slot; 1211: a second metal bellows; 13: an embedded end; 131: column shear keys; 2: a bearing platform; 21: a bearing platform groove; 211: a first metal bellows; 22: reserving reinforcing steel bars on the bearing platform; 23: a water stop ring; 3: a gasket; 4: bridge pile foundation.
Detailed Description
The present invention provides a bearing-socket type prefabricated bridge pier connection structure, which is described in further detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims.
Example one
Referring to fig. 1 to 3, the utility model provides a bearing-socket type prefabricated pier connection structure, which comprises a prefabricated pier body 1 and a bearing platform 2 arranged below the prefabricated pier body 1;
a bearing platform groove 21 with an upward opening is formed in the middle of the bearing platform 2 along the vertical direction, as shown in fig. 1, a plurality of bearing platform reserved steel bars 22 arranged along the vertical direction are pre-embedded in the bearing platform 2, as shown in fig. 2, in the present embodiment, twelve bearing platform reserved steel bars 22 are totally arranged, the twelve bearing platform reserved steel bars 22 are circumferentially distributed on the outer side of the bearing platform groove 21, and the bearing platform reserved steel bars 22 extend out of a free end with a certain length from the upper surface of the bearing platform 2;
in this embodiment, referring to fig. 1, a hollow first metal corrugated pipe 211 arranged along a vertical direction is embedded in the bearing platform 1, the first metal corrugated pipe 211 is used as an inner wall of the bearing platform groove 21, a water stop ring 23 coaxial with the bearing platform groove 21 is arranged on the outer side of the support 12 on the upper surface of the bearing platform 2, and the water stop ring 23 is used for stopping leakage of the grouting material injected later.
The prefabricated pier body 1 sequentially comprises an exposed end 11, a bearing 12 and an embedded end 13 from top to bottom, the bearing 12 is provided with a plurality of steel bar slots 121 matched with the reserved steel bars 22 of the bearing platform along the circumferential direction, the free ends of the reserved steel bars 22 of the bearing platform are respectively inserted into the plurality of steel bar slots 121, in the embodiment, a plurality of second metal corrugated pipes 1211 matched with the reserved steel bars 22 of the bearing platform are embedded in the bearing 12 along the circumferential direction, and the second metal corrugated pipes 1211 are used as the inner walls of the steel bar slots 121;
the embedded end 13 is used for being embedded into the bearing platform groove 21, the outer wall of the embedded end 13 is provided with a plurality of annular raised column shear keys 131, the first metal corrugated pipe 211 and the column shear keys 131 can provide anchoring strength between the prefabricated pier body 1 and the bearing platform 2, and if the first metal corrugated pipe 211 and the column shear keys 131 are not adopted, the insertion depth between the embedded end 13 and the bearing platform 2 and the thickness of a bottom plate of the bearing platform 2 need to be correspondingly increased; the section shape and size of the embedded end 13 are matched with those of the bearing platform groove 21 so that the embedded end 13 can be embedded into the bearing platform groove 21, when the prefabricated pier body 1 is assembled with the bearing platform 2, the lower surface of the bearing 12 is placed on the upper surface of the bearing platform 2, and high-strength grouting materials are poured in the steel bar slots 121 and the bearing platform groove 21 and are used for connecting the prefabricated pier body 1 and the bearing platform 2 into a whole;
the cross-sectional size and the reinforcing bars of the embedded end 14 are required to satisfy various technical requirements for keeping the bridge structure firm under normal use and bridge earthquake action, in the embodiment, the ratio of the embedded depth of the embedded end to the diameter of the embedded end is more than or equal to 0.7,
as a preferred example, a plurality of gaskets 3 are arranged between the lower surface of the support 13 and the upper surface of the bearing platform 2, and the gaskets 3 are used for adjusting the vertical connection between the bearing platform 2 and the embedded end 13.
The utility model provides a bearing-socket type prefabricated bridge pier connecting structure, a bearing platform groove 21 with an upward opening is arranged on a bearing platform 2, a plurality of bearing platform reserved steel bars 22 arranged along the vertical direction are pre-embedded in the bearing platform 2, a prefabricated pier body 1 sequentially comprises an exposed end 11, a bearing 12 and an embedded end 13 from top to bottom, the bearing 12 is provided with a plurality of steel bar slots 121 matched with the bearing platform reserved steel bars 22 along the circumferential direction, the free ends of the plurality of bearing platform reserved steel bars 22 are respectively inserted into the steel bar slots 121, the outer wall of the embedded end 13 is provided with a plurality of annular raised upright column shear keys 131, the embedded end 13 is embedded into the bearing platform groove 21, the lower surface of the bearing 12 is placed on the upper surface of the bearing platform 2, grouting materials are respectively poured in the steel bar slots 121 and in the bearing platform groove 21, the utility model can adopt the volume to calculate the pouring amount of the grouting materials, and the gap between the bearing platform and the prefabricated pier body is, the method has the advantages of no incomplete phenomenon, simple assembly construction, high construction fault tolerance rate and capability of overcoming the defects of potential safety hazard and difficulty in checking the grouting fullness degree in the prior art.
Referring to fig. 4 to 7, the utility model provides a construction method of bearing-socket type prefabricated pier connection structure, including the following steps:
fixing a bearing platform 2 on a bridge pile foundation 4, wherein a bearing platform groove 21 with an upward opening is formed in the bearing platform 2, a plurality of bearing platform reserved steel bars 22 arranged in the vertical direction are pre-embedded in the bearing platform 2, the plurality of bearing platform reserved steel bars 22 are distributed on the outer side of the bearing platform groove 21 along the circumference, and free ends of a certain length extend out of the upper surface of the bearing platform 2 through the bearing platform reserved steel bars 22;
referring to fig. 4, a proper amount of high-strength grouting material is poured into the bearing platform groove 21;
referring to fig. 5, a prefabricated pier body 1 is hung on a bearing platform 2, a gasket 3 is arranged on the bearing platform 2 for adjusting the prefabricated pier body 1 to be vertically connected with the bearing platform 2, the prefabricated pier body 1 sequentially comprises an exposed end 11, a bearing 12 and an embedded end 13 from top to bottom, the bearing 12 is provided with a plurality of steel bar slots 121 matched with reserved steel bars 22 of the bearing platform along the circumferential direction, free ends of the reserved steel bars 22 of the bearing platform are respectively inserted into the steel bar slots 121, the outer wall of the embedded end 13 is provided with a plurality of annular raised column shear keys 131, referring to fig. 6, the embedded end 13 is embedded into the bearing platform groove 21 along the vertical direction and extrudes grouting material, the gap between the bearing platform groove 21 and the embedded end 13 is filled with the grouting material until the grouting material is extruded to the top surface of the bearing platform 2 and is blocked by a water stop ring 23, in the embodiment, a pre-buried hollow first metal corrugated pipe 211 arranged along the vertical direction is arranged in the bearing platform 1, the first metal corrugated pipe 211 is used as the inner wall of the bearing platform groove 21, the position of the embedded end 13 is adjusted, the upright column shear key 131 and the first metal corrugated pipe 211 are opposite to each other, a gap between the upright column shear key 131 and the first metal corrugated pipe 211 is filled with high-strength grouting material, the force transmission performance of the oppositely arranged shear keys is better than that of a male-female embedded type, and the anchoring strength between the bearing platform 2 and the prefabricated pier body 1 is higher;
referring to fig. 7, after the grouting material in the groove 21 of the bearing platform is initially set, the grouting material is poured into the steel bar slot 121, in this embodiment, a plurality of second metal corrugated pipes 1211 matched with the reserved steel bars 22 of the bearing platform are pre-embedded in the bearing 12 along the circumferential direction, the second metal corrugated pipes 1211 are used as the inner wall of the steel bar slot 121, a high-strength grouting material is poured into the second metal corrugated pipes 1211 reserved in the bearing 12 to anchor the reserved steel bars 22 of the bearing platform, and the prefabricated pier body 1 and the bearing 2 are connected into a whole after the high-strength grouting material is completely hardened.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, the changes are still within the scope of the present invention if they fall within the scope of the claims and their equivalents.
Claims (7)
1. A bearing-socket type prefabricated bridge pier connecting structure is characterized by comprising a prefabricated pier body and a bearing platform arranged below the prefabricated pier body;
the bearing platform is provided with a bearing platform groove with an upward opening, a plurality of bearing platform reserved steel bars arranged in the vertical direction are pre-embedded in the bearing platform, the plurality of bearing platform reserved steel bars are distributed on the outer side of the bearing platform groove along the circumference, and the bearing platform reserved steel bars extend out of the upper surface of the bearing platform to form free ends with certain lengths;
prefabricated pier shaft is from last to including exposing end, bearing and embedded end down in proper order, the bearing along the circumferencial direction seted up with a plurality of reinforcing bar slots of cushion cap reservation reinforcing bar assorted, it is a plurality of the free end of cushion cap reservation reinforcing bar inserts a plurality of respectively in the reinforcing bar slot, the outer wall of embedded end sets up the bellied stand shear force key of a plurality of annular, the cross sectional shape, the size of embedded end with the cross sectional shape, the size of cushion cap recess are matched with so the embedded end can imbed in the cushion cap recess, the lower surface of bearing is shelved in on the upper surface of cushion cap, in the reinforcing bar slot and all pour the grout material in the cushion cap recess.
2. The bearing-socket type prefabricated bridge pier connection structure of claim 1, wherein a water stop ring coaxial with the bearing platform groove is arranged on the upper surface of the bearing platform on the outer side of the bearing.
3. The bearing-socket type prefabricated bridge pier connection structure of claim 1, wherein a first metal corrugated pipe which is hollow and arranged in a vertical direction is embedded in the bearing platform, and the first metal corrugated pipe is used as an inner wall of a groove of the bearing platform.
4. The bearing-socket type prefabricated bridge pier connecting structure of claim 1, wherein a plurality of second metal corrugated pipes matched with reserved steel bars of the bearing platform are pre-embedded in the bearing along the circumferential direction, and the second metal corrugated pipes are used as inner walls of the steel bar inserting grooves.
5. The bearing-socket type prefabricated bridge pier connection structure of claim 1, wherein the reserved steel bars of the bearing platform are vertical steel bars with 90-degree hooks at the bottom.
6. The bearing-socket prefabricated pier connection structure of claim 1, wherein the ratio of the embedding depth of the embedded end to the diameter of the embedded end is 0.7 or more.
7. The bearing-socket type prefabricated bridge pier connection structure of claim 1, wherein a plurality of gaskets are arranged between the lower surface of the bearing and the upper surface of the bearing platform, and the gaskets are used for adjusting the vertical connection between the bearing platform and the embedded end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021684048.6U CN212452270U (en) | 2020-08-13 | 2020-08-13 | Bearing-socket type prefabricated bridge pier connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021684048.6U CN212452270U (en) | 2020-08-13 | 2020-08-13 | Bearing-socket type prefabricated bridge pier connecting structure |
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| Publication Number | Publication Date |
|---|---|
| CN212452270U true CN212452270U (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021684048.6U Expired - Fee Related CN212452270U (en) | 2020-08-13 | 2020-08-13 | Bearing-socket type prefabricated bridge pier connecting structure |
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| Country | Link |
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| CN (1) | CN212452270U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585318A (en) * | 2021-08-12 | 2021-11-02 | 上海应用技术大学 | Prefabricated assembled hollow formwork connecting structure and construction method thereof |
| CN115492153A (en) * | 2022-10-24 | 2022-12-20 | 广西电网有限责任公司崇左扶绥供电局 | Prepackage type pole rim of a cup basis |
-
2020
- 2020-08-13 CN CN202021684048.6U patent/CN212452270U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585318A (en) * | 2021-08-12 | 2021-11-02 | 上海应用技术大学 | Prefabricated assembled hollow formwork connecting structure and construction method thereof |
| CN115492153A (en) * | 2022-10-24 | 2022-12-20 | 广西电网有限责任公司崇左扶绥供电局 | Prepackage type pole rim of a cup basis |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210202 |