CN219808247U - Assembled bridge pier - Google Patents
Assembled bridge pier Download PDFInfo
- Publication number
- CN219808247U CN219808247U CN202320299105.6U CN202320299105U CN219808247U CN 219808247 U CN219808247 U CN 219808247U CN 202320299105 U CN202320299105 U CN 202320299105U CN 219808247 U CN219808247 U CN 219808247U
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- pier
- prefabricated
- anchoring steel
- steel bar
- fabricated
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 34
- 238000004873 anchoring Methods 0.000 claims abstract description 34
- 239000010959 steel Substances 0.000 claims abstract description 34
- 238000011065 in-situ storage Methods 0.000 claims abstract description 10
- 230000002787 reinforcement Effects 0.000 claims description 10
- 239000002002 slurry Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 7
- 230000003014 reinforcing effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 238000007569 slipcasting Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model belongs to the technical field of rail transit construction, and particularly relates to an assembled bridge pier which comprises a bent cap, wherein the bent cap is prefabricated and formed; the cast-in-situ forming bearing platform is provided with a first anchoring steel bar at the top; the pier column is arranged between the capping beam and the bearing platform, a second anchoring steel bar is arranged at the top of the pier column, the first anchoring steel bar stretches into the pier column to anchor the pier column at the top surface of the bearing platform, and the second anchoring steel bar stretches into the capping beam and anchors the capping beam at the top of the pier column.
Description
Technical Field
The utility model belongs to the technical field of rail transit construction, and particularly relates to an assembled bridge pier.
Background
The bridge pier, namely the lower bearing used for bearing the upper structure in the track traffic engineering, has circular cross section and also has elliptic, square, curve, parabolic and other special-shaped pier columns, and is an important component in the engineering of highway bridges, railway bridges, sidewalks, overpasses, ramp bridges, overpasses and the like.
The traditional cast-in-situ pier construction method needs to occupy large field and space, has long construction period and great influence on surrounding environment and traffic, and the assembly construction technology provides a method for solving the problems, so that the engineering progress is greatly accelerated, and the construction period is shortened.
The applicant has studied the problem of the fabricated pier in early stage, submitted the patent application with the application number of CN202020363186.8, disclosed a double-limb thin-wall T-shaped pier, split the pier into a capping beam and two U-shaped columns, and perform prefabrication processing in a factory by adopting mechanized flow production, wherein the U-shaped columns can be prefabricated in a supine mode, are convenient to manufacture, store and transport, can be assembled into an integral double-limb thin-wall T-shaped pier in the factory before installation, temporarily fix the U-shaped column through a connecting piece, and then cast a fixing layer, and fill the lower end of the U-shaped column into a solid pier column in a certain range so as to improve the anti-collision capability of the double-limb thin-wall T-shaped pier.
However, as the applicant further researches, it is found that the connection reliability is insufficient due to the fact that the connection mode of the bridge pier and the bearing platform is only cast in a traditional mode in the application, the mode is not applicable to the prefabricated pier, the characteristic that the prefabricated pier is provided with the corrugated pipe is not considered, and the construction mode influences the safety of the bridge pier under the action of strong shock.
Disclosure of Invention
In order to solve the technical problems, the utility model adopts the following technical scheme:
an assembled bridge pier comprises a capping beam, wherein the capping beam is prefabricated and formed; the cast-in-place forming pile cap is characterized in that a first anchoring steel bar is arranged at the top of the pile cap; and the pier column is prefabricated and formed, the pier column is arranged between the capping beam and the bearing platform, and a second anchoring steel bar is arranged at the top of the pier column, wherein the first anchoring steel bar stretches into the pier column to anchor the pier column to the top surface of the bearing platform, and the second anchoring steel bar stretches into the capping beam to anchor the capping beam at the top of the pier column.
Further, the pier stud is hollow thin wall structure, the pier stud includes annular bracket, pier shaft, annular connection boss from top to bottom in proper order, be provided with a plurality of first bellows in the annular connection boss, annular connection boss bottom is equipped with first recess, first recess will all communicate in first bellows bottom forms the sealed thick liquids flow path of pipeline, the pier shaft is equipped with the secondary of inner chamber and pours the hole.
Further, the first anchor bar is mated with the first bellows.
Further, the upper part of the first anchoring steel bar extending out of the first corrugated pipe is connected with an anchoring nut, and the first anchoring steel bar is anchored by bolts after the first corrugated pipe is grouted.
Furthermore, the pier column is a hollow thin-wall structure formed by assembling two horizontal prefabricated U-shaped columns or a vertical prefabricated hollow thin-wall structure.
Further, the bent cap includes whole steel reinforcement cage, prefabricated thin wall shell and wave form mandrel.
Further, the prefabricated thin-wall shell is of a prefabricated thin-wall hollow structure, and a through hole corresponding to the second anchoring steel bar is formed in the bottom of the hollow structure.
Further, the bottom of the capping beam is provided with a tenon corresponding to the inner wall of the pier column and a buckle attached to the outer wall of the pier column.
Further, the bottom of the capping beam is provided with a second groove, and the second groove is a channel for paste slurry to flow on the joint surface of the pier stud and the capping beam.
Compared with the prior art, the utility model has the following beneficial effects:
adopt to set up a plurality of first bellows in prefabricated pier stud bottom, cooperate with its pre-buried first anchor reinforcing bar of cushion cap after hoist and mount, adopt reverse slip casting method through the first bellows in pier stud bottom, utilize anchor nut to anchor first anchor reinforcing bar, combined the structural advantage of prefabricated pier stud, pour the concrete through the secondary pouring hole, connect pier stud and cushion cap as an organic wholely, strengthened prefabricated pier stud's shock resistance and steadiness.
Drawings
FIG. 1 is a schematic view of an assembled pier according to the present utility model;
FIG. 2 is a schematic perspective view of a pier stud according to an embodiment of the present utility model (view I);
FIG. 3 is a schematic perspective view of a pier stud according to an embodiment of the present utility model (view II);
fig. 4 is a schematic perspective view of an overall cage of a reinforcement cage in an assembled pier embodiment of the present utility model (view one);
fig. 5 is a schematic perspective view of an overall reinforcement cage according to an embodiment of an assembled pier (view two);
FIG. 6 is a schematic perspective view of a capping beam (view I) of an assembled pier according to the present utility model;
fig. 7 is a schematic perspective view of a capping beam (view two) of an assembled pier according to an embodiment of the present utility model;
reference numerals in the drawings of the specification include:
the steel reinforcement structure comprises a capping beam 1, a bearing platform 2, a first anchoring steel bar 20, an anchoring nut 21, a pier stud 22, a second anchoring steel bar 23, an annular bracket 24, an annular connecting boss 30, a first corrugated pipe 31, a first groove 32, a secondary pouring hole 33, a through hole 34, an integral steel reinforcement cage 4, a prefabricated thin-wall shell 5, a waveform mandrel 6, a tenon 7, a buckle 8 and a second groove 9.
Detailed Description
In order that those skilled in the art will better understand the present utility model, the following technical scheme of the present utility model will be further described with reference to the accompanying drawings and examples.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the utility model, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted, and that like or similar reference numerals in the drawings correspond to like or similar components in the embodiments of the present utility model; in the description of the present utility model, it should be understood that, if the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present utility model and simplifying the description, rather than indicating or implying that the apparatus or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, so that the terms describing the positional relationships in the drawings are merely for exemplary illustration and should not be construed as limiting the present patent, and that the specific meaning of the terms described above may be understood by those of ordinary skill in the art according to specific circumstances.
Examples:
as shown in fig. 1 to 7, the assembled pier of the utility model comprises a prefabricated capping beam 1, a pier column 22 and a cast-in-situ formed bearing platform 2, wherein a first anchoring steel bar 20 is arranged at the top of the bearing platform 2, the pier column 22 is arranged between the capping beam 1 and the bearing platform 2, and a second anchoring steel bar 23 is arranged at the top of the pier column 22;
the first anchoring steel bars 20 extend into the pier studs 22 to anchor the pier studs 22 to the top surface of the bearing platform 2, and the second anchoring steel bars 23 extend into the bent cap 1 to anchor the bent cap 1 to the top of the pier studs 22.
As shown in fig. 2 and 3, the pier column 22 is of a hollow thin-wall structure, the pier column 22 sequentially comprises an annular bracket 24, a pier body and an annular connecting boss 30 from top to bottom, a plurality of first corrugated pipes 31 are arranged in the annular connecting boss 30, a first groove 32 is formed in the bottom of the annular connecting boss 30, the first groove 32 is used for completely communicating the bottoms of the first corrugated pipes 31 to form a pipeline sealing slurry flow channel, the pier body is provided with secondary pouring holes 33 of an inner cavity, specifically, the upper part of the first anchoring steel bars 20 extending out of the first corrugated pipes 31 is connected with anchoring nuts 21, the first anchoring steel bars 20 are anchored after grouting through the first corrugated pipes 31, after the pier column 22 is hoisted, the first corrugated pipes 31 are matched with the first anchoring steel bars 20, mortar is poured into the first corrugated pipes 31 to form an integral structure, and the first corrugated pipes 31 are grouted to play a role of sealing and reinforcing connectivity.
Adopt prefabricated fashioned pier stud 22, set up a plurality of first bellows 31 in its bottom, its first bellows 31 all communicates, cooperate with the pre-buried first anchor reinforcing bar 20 of its cushion cap 2 after hoist and mount, adopt reverse slip casting method through pier stud 22 bottom first bellows 31, select 1 to 2 pipelines to impress from the top in the middle part, remaining pipelines are upwards poured through the bottom communication pipeline, anchor nut 21 carries out the anchor to first anchor reinforcing bar 20, combine the structural advantage of prefabricated pier stud 22, pour concrete through secondary pouring hole 33, connect pier stud 22 and cushion cap 2 as an organic whole, the antidetonation and the steadiness that have strengthened its component connection.
The annular connecting boss 30 increases the area of the connecting surface of the pier column 22 and the bearing platform 2, so that the cooperation of the pier and the bearing platform 2 further enhances the shock resistance and stability of component connection;
in addition, the pier stud 22 is a hollow thin-wall structure formed by assembling two horizontal prefabricated U-shaped studs or a vertical prefabricated hollow thin-wall structure, as shown in fig. 4 and 5, the bent cap 1 comprises an integral reinforcement cage 4, a prefabricated thin-wall shell 5 and a waveform core mold 6, the existing waveform core mold 6 is a cast-in-situ core body, the integral reinforcement cage 4 is an integral framework structure formed by all required reinforcements in the using stage of the bent cap 1, the prefabricated thin-wall shell 5 is a factory embedded waveform core mold 6 and cast concrete to form an open-top hollow structure, the two parts form a prefabricated part of the bent cap 1, the open hollow part in the prefabricated thin-wall shell 5 is a cast-in-situ core body (not shown in the drawing), and the prefabricated part of the bent cap 1 is a support and mold structure in the implementation stage of the cast-in-situ core body, so that the influence of long-term operation such as a traditional cast-in-situ template and a support on the environment is avoided;
the prefabricated thin-wall shell 5 is of a prefabricated thin-wall hollow structure, a through hole 34 corresponding to the second anchoring steel bar 23 is arranged at the bottom of the hollow structure, and reserved steel bars at the top of the pier column 22 extend into the hollow structure and then are integrated with a cast-in-situ core body into a whole, so that reliable connection between the prefabricated capping beam 1 and the prefabricated pier column 22 is formed;
as shown in fig. 7, the bottom of the capping beam 1 is provided with a tenon 7 corresponding to the inner wall of the pier column 22 and a buckle 8 attached to the outer wall of the pier column 22, the bottom of the capping beam 1 is provided with a second groove 9, the second groove 9 is a channel for paste flow on the attaching surface of the pier column 22 and the capping beam 1, the design enhances the connectivity and stability of the pier column 22 and the capping beam 1, and the tenon 7 and the buckle 8 symmetrically arranged are used for resisting the transverse horizontal force of the connecting surface of the capping beam 1 and the pier column 22.
The pier can be a hollow thin-wall pier column, can be prefabricated and processed in a factory by adopting mechanized flow production, can be prefabricated in a vertical mode or in a vertical mode, is convenient to manufacture, store and transport, can be assembled and formed in the factory before being installed, can be assembled into a hollow component in a prefabricated mode, can be mechanically hoisted in site installation, and can greatly shorten site operation time compared with site operation time required by the cast-in-situ pier column 22, so that road traffic and urban environment influence are reduced.
The width of the secondary pouring hole 33 is not smaller than 150MM, the diameter of the first corrugated pipe 31 is 70MM, and the corrugated pipe and the first anchoring steel bars 20 connected with the corrugated pipe are poured together by mortar, so that the anti-seismic performance is enhanced, and the pier stud 22 and the bearing platform 2 are connected more reliably.
The foregoing is merely exemplary of the present utility model, and specific structures and features well known in the art will not be described in detail herein, so that those skilled in the art will be aware of all the prior art to which the present utility model pertains, and will be able to ascertain the general knowledge of the technical field in the application or prior art, and will not be able to ascertain the general knowledge of the technical field in the prior art, without using the prior art, to practice the present utility model, with the aid of the present utility model, to ascertain the general knowledge of the same general knowledge of the technical field in general purpose. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent.
Claims (9)
1. An assembled pier, comprising:
the cover beam is prefabricated and formed;
the bearing platform is formed in a cast-in-situ mode, and a first anchoring steel bar is arranged at the top of the bearing platform;
the pier column is prefabricated and formed, the pier column is arranged between the capping beam and the bearing platform, and a second anchoring steel bar is arranged at the top of the pier column;
the first anchoring steel bars extend into the pier columns to anchor the pier columns to the top surface of the bearing platform, and the second anchoring steel bars extend into the bent cap to anchor the bent cap to the top of the pier columns.
2. A fabricated pier according to claim 1, wherein: the pier stud is of a hollow thin-wall structure, the pier stud sequentially comprises an annular bracket, a pier body and an annular connecting boss from top to bottom, a plurality of first corrugated pipes are arranged in the annular connecting boss, a first groove is formed in the bottom of the annular connecting boss, the first groove is used for communicating the bottoms of the first corrugated pipes completely to form a pipeline sealing slurry flow channel, and a secondary pouring hole of an inner cavity is formed in the pier body.
3. A fabricated pier according to claim 2, wherein: the first anchoring reinforcement is mated with the first bellows.
4. A fabricated pier according to claim 2, wherein: the upper part of the first anchoring steel bar extending out of the first corrugated pipe is connected with an anchoring nut, and the first anchoring steel bar is anchored by bolts after the first corrugated pipe is grouted.
5. A fabricated pier according to claim 2, wherein: the pier column is a hollow thin-wall structure formed by assembling two horizontal prefabricated U-shaped columns or a vertical prefabricated hollow thin-wall structure.
6. A fabricated pier according to claim 1, wherein: the bent cap includes whole steel reinforcement cage, prefabricated thin wall shell and wave form mandrel.
7. A fabricated pier according to claim 6, wherein: the prefabricated thin-wall shell is of a prefabricated thin-wall hollow structure, and a through hole corresponding to the second anchoring steel bar is formed in the bottom of the hollow structure.
8. A fabricated pier according to claim 1, wherein: the bent cap bottom be equipped with the tenon that the pier column inner wall corresponds and with the buckle of pier column outer wall laminating.
9. A fabricated pier according to claim 1, wherein: the bottom of the capping beam is provided with a second groove, and the second groove is a channel for paste slurry to flow on the joint surface of the pier stud and the capping beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320299105.6U CN219808247U (en) | 2023-02-23 | 2023-02-23 | Assembled bridge pier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320299105.6U CN219808247U (en) | 2023-02-23 | 2023-02-23 | Assembled bridge pier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219808247U true CN219808247U (en) | 2023-10-10 |
Family
ID=88216719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320299105.6U Active CN219808247U (en) | 2023-02-23 | 2023-02-23 | Assembled bridge pier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219808247U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117661432A (en) * | 2024-01-30 | 2024-03-08 | 中建八局第二建设有限公司 | Pier structure anchored by high-strength steel bars |
-
2023
- 2023-02-23 CN CN202320299105.6U patent/CN219808247U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117661432A (en) * | 2024-01-30 | 2024-03-08 | 中建八局第二建设有限公司 | Pier structure anchored by high-strength steel bars |
| CN117661432B (en) * | 2024-01-30 | 2024-04-16 | 中建八局第二建设有限公司 | Pier structure anchored by high-strength steel bars |
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