CN114134802A - Slot type connection method for prefabricated bridge pier and bearing platform - Google Patents
Slot type connection method for prefabricated bridge pier and bearing platform Download PDFInfo
- Publication number
- CN114134802A CN114134802A CN202010918497.0A CN202010918497A CN114134802A CN 114134802 A CN114134802 A CN 114134802A CN 202010918497 A CN202010918497 A CN 202010918497A CN 114134802 A CN114134802 A CN 114134802A
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- bearing platform
- prefabricated
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- hole
- reserved
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 38
- 239000010959 steel Substances 0.000 claims abstract description 38
- 239000011083 cement mortar Substances 0.000 claims abstract description 10
- 238000010276 construction Methods 0.000 claims description 17
- 238000009417 prefabrication Methods 0.000 claims description 4
- 239000004570 mortar (masonry) Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009439 industrial construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Abstract
The invention relates to a slot-in type connection method of a prefabricated bridge pier and a bearing platform, which comprises the bearing platform (2) and the prefabricated bridge pier (1). A groove is formed in the center of the top of the bearing platform (2) by enclosing of a steel plate (3), and meanwhile a longitudinal preformed hole (6) and a transverse preformed hole (5) are formed in the steel plate (3); when prefabricating the pier body, be equipped with on prefabricated pier (1) and reserve hole (4), just reserve hole (4) and vertical reservation hole (6), horizontal reservation hole (5) is corresponding for insert superstrong bolt (7) and make it link into whole. After the prefabricated bridge pier (1) is inserted into a groove formed by surrounding steel plates (3) at the top of the bearing platform (2), super-strong bolts (7) are inserted into the reserved holes, and then high-strength cement mortar (8) is filled into gaps for fixation. The invention realizes the quick connection of the prefabricated pier (1) and the bearing platform (2).
Description
Technical Field
The invention relates to the technical field of bridges, in particular to a slot-in type connecting method of a prefabricated bridge pier and a bearing platform.
Background
Along with the rapid development of the Chinese economic society, the urban traffic is increasingly heavy, and along with the development of bridge engineering, the role and the value of the prefabricated assembly technology in the bridge construction are increased day by day. The prefabrication and assembly technology is that pier bodies of piers are manufactured in a factory and are transported to a construction site to be assembled into a whole through a crane, and the rapid construction of a bridge substructure is realized. Compared with the traditional construction method, the method has the advantages that the steel plates are used for fixing the prefabricated bridge piers, so that the construction time and the occupied area are reduced, and the influence on surrounding traffic and environment is reduced.
Nowadays, the prefabrication and assembly technology of domestic bridge superstructure tends to be mature, and the prefabrication and assembly technology of bridge substructure, especially pier, is less and is only applied to some urban viaducts. In China, the construction of urban rail transit, high-speed rails, cross-sea bridges and the like requires bridge construction, which is an application field of prefabricated assembly technology, so that technical personnel in the field should actively research the prefabricated assembly technology to reduce the construction time and various resources.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: a slot-in type connecting method of a prefabricated pier and a bearing platform enables the prefabricated pier and the bearing platform to be quickly connected, quick assembly of a bridge lower structure is achieved, the structure can meet the requirement of industrial construction, and the construction speed is high and the efficiency is high.
In order to achieve the purpose, the invention adopts the following technical scheme: the invention relates to a slot-in type connection method of a prefabricated bridge pier and a bearing platform. A groove is formed in the center of the top of the bearing platform in a surrounding mode through a steel plate, and meanwhile a longitudinal reserved hole and a transverse reserved hole are formed in the steel plate; when prefabricating the pier body, be equipped with the reservation hole on the prefabricated pier, just the reservation hole is corresponding with vertical reservation hole, horizontal reservation hole for insert superstrong bolt and make it become whole even. After the prefabricated bridge pier is inserted into a groove formed by surrounding steel plates at the top of the bearing platform, super-strong bolts are inserted into the reserved holes, and then high-strength cement mortar is filled into the gaps for fixation. The invention realizes the quick connection of the prefabricated pier and the bearing platform.
The cross section of the prefabricated bridge pier is in a rectangular shape, a circular shape or a square shape (in the figure, the square shape is mainly used, but not limited). And a reserved hole is reserved at the bottom of the prefabricated pier and used for inserting the super-strong bolt.
The groove is surrounded by steel plates, roughening treatment is carried out on the bottom of the groove, the total height of the steel plates is 80-100 cm, and the lower portion of each steel plate is prefabricated in the bearing platform by 30-50 cm.
After the prefabricated bridge pier is inserted into the bearing platform, the prefabricated bridge pier is inserted into the longitudinal reserved hole through the super-strong bolt, high-strength cement mortar is filled in the gap in the transverse reserved hole, the gap is filled with the cement mortar, and the whole structure is reinforced.
The groove surrounded by the steel plate is located in the center of the top of the bearing platform, the length of the steel plate is 10-15 cm longer than the diameter of the bottom face of the prefabricated pier, a plurality of longitudinal reserved holes are arranged on each of two sides, the sizes and the intervals of the transverse reserved holes are equal, the diameter of each longitudinal reserved hole is 5-8 cm, the interval between the centers of the longitudinal reserved holes is 15-20 cm, the distance between each longitudinal reserved hole and the center is 4-5 cm, the distance between each transverse reserved hole and the center is 4-5 cm, and the distance between each transverse reserved hole and the center is 15-20 cm.
A slot-in type connecting method of a prefabricated pier and a bearing platform mainly comprises the following steps:
A. casting a steel plate on the upper surface of a bearing platform in a construction site in a cast-in-place manner, and enclosing the steel plate into a groove, wherein the steel plate is provided with a longitudinal reserved hole and a transverse reserved hole;
B. prefabricating a pier in advance in a factory, wherein the prefabricated pier is provided with a reserved hole, and transporting the prefabricated pier to a construction site for waiting for splicing the slots after prefabricating and forming;
C. lifting the prefabricated bridge pier to be right above the bearing platform by adopting a crane, adjusting the direction of the prefabricated bridge pier, and enabling the reserved hole of the prefabricated bridge pier to correspond to the reserved hole of the bearing platform in the descending process so as to finish the slot between the bearing platform and the prefabricated bridge pier;
D. inserting the super-strong bolts into the reserved holes which are in one-to-one correspondence;
E. and (4) pouring high-strength mortar into the reserved holes of the bridge pier by using a grouting machine to anchor and form the bridge pier.
The invention has the beneficial effects that:
the invention creates a slot-in type connecting method of the prefabricated bridge pier and the bearing platform, realizes the factory, standardization, assembly and rapidness of bridge construction, enhances the connecting strength of the prefabricated bridge pier and the bearing platform, reduces the complexity of field construction and improves the construction efficiency. The groove that its main steel sheet enclosed, simple manufacture, after prefabricated pier inserts the cushion cap, with superstrong bolt fastening, intensity is high and stable, has both lacked the engineering time, also can guarantee intensity.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a prefabricated bridge pier and a bearing platform which are assembled and inserted with super-strong bolts;
FIG. 3 is a cross-sectional view taken from the center of the grouting apparatus of the present invention;
in the attached drawings, 1 is a prefabricated bridge pier; 2 is a bearing platform; 3 is a steel plate; 4, reserving holes for the prefabricated bridge piers; 5, transverse reserved holes; 6 is a longitudinal reserved hole; 7 is an ultra-strong bolt; 8 is high-strength cement mortar.
Detailed Description
For a more complete understanding of the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings. Please refer to fig. 1 to fig. 3.
In the embodiment of the invention, the slot-in type connecting method of the prefabricated bridge pier and the bearing platform comprises a prefabricated bridge pier 1; a bearing platform 2; a steel plate 3; prefabricating a reserved hole 4 of the bridge pier; transversely reserving holes 5; longitudinally reserving a hole 6; an ultra-strong bolt 7; high-strength cement mortar 8.
In an embodiment of the present invention, a slot-in type connection method for a prefabricated bridge pier and a bearing platform is provided, including:
the bridge pier comprises a bearing platform 2 and a prefabricated bridge pier 1. A groove is formed in the center of the top of the bearing platform 2 by enclosing a steel plate 3, and meanwhile, a longitudinal reserved hole 6 and a transverse reserved hole 5 are formed in the steel plate 3; when prefabricating the pier body, be equipped with on the prefabricated pier 1 and reserve hole 4, just reserve hole and vertical reservation hole 6, horizontal reservation hole 5 is corresponding for inserting superstrong bolt 7 and make it become whole even. After the prefabricated pier 1 is inserted into a groove formed by surrounding a steel plate 3 at the top of a bearing platform 2, super-strong bolts 7 are inserted into the reserved holes, and then high-strength cement mortar 8 is filled in gaps for fixation. The invention realizes the quick connection of the prefabricated pier 1 and the bearing platform 2.
The cross section of the prefabricated pier 1 is rectangular, circular or square (in the figure, the square is mainly used, but not limited thereto). And a reserved hole 4 is reserved at the bottom of the prefabricated pier 1 for inserting an ultra-strong bolt 7.
The groove is surrounded by a steel plate 3, roughening treatment is carried out on the bottom of the groove, the total height of the steel plate 3 is 80-100 cm, and 30-50 cm of the lower portion of the steel plate 3 is prefabricated in the bearing platform 2.
After the prefabricated bridge pier 1 is inserted into the bearing platform 2, the prefabricated bridge pier is inserted into the longitudinal reserved hole 6 and the transverse reserved hole 5 through the super-strong bolt 7, and high-strength cement mortar 8 is filled in the gap to fill the gap and reinforce the whole structure.
The groove surrounded by the steel plate 3 is located in the center of the top of the bearing platform 2, the length of the steel plate 3 is 10-15 cm longer than the diameter of the bottom of the prefabricated pier 1, a plurality of longitudinal preformed holes 6 and transverse preformed holes 5 are arranged on two sides of the groove, the sizes and the intervals of the longitudinal preformed holes 6 and the transverse preformed holes 5 are equal, the diameter of each longitudinal preformed hole 6 is 5-8 cm, the interval between the centers of the longitudinal preformed holes 6 is 15-20 cm, the distance between each longitudinal preformed hole 6 and the center is 4-5 cm above the center, the distance between each transverse preformed hole 5 and the center is 4-5 cm below the center, and the distance between each transverse preformed hole 5 and the outer edge of the steel plate 3 is 15-20 cm.
The present invention is not limited to the above specific embodiments. Any equivalent modifications or substitutions to the present invention would be considered within the scope of the present invention by those skilled in the bridge arts. Therefore, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be included in the scope of the present invention.
Claims (7)
1. A slot-in type connection method of a prefabricated bridge pier and a bearing platform is characterized by comprising the bearing platform (2) and the prefabricated bridge pier (1); a groove is formed in the center of the top of the bearing platform (2) by enclosing of a steel plate (3), and meanwhile a longitudinal preformed hole (6) and a transverse preformed hole (5) are formed in the steel plate (3); when the pier body is prefabricated, the prefabricated pier body (1) is provided with a reserved hole (4), the reserved hole (4) corresponds to the longitudinal reserved hole (6) and the transverse reserved hole (5) and is used for inserting the super-strong bolt (7) to enable the super-strong bolt to be connected into a whole; after the prefabricated bridge pier (1) is inserted into a groove formed by surrounding steel plates (3) at the top of the bearing platform (2), super-strong bolts (7) are inserted into the reserved holes, and then high-strength cement mortar (8) is filled into gaps for fixation.
2. The slot-in type connection method of the prefabricated bridge pier and the bearing platform as claimed in claim 1, wherein the cross-sectional form of the prefabricated bridge pier (1) is one of rectangle, circle and square.
3. The slot-in type connection method of the prefabricated pier and the bearing platform according to claim 1, wherein the groove is defined by steel plates (3), the bottom of the groove is roughened, the total height of the steel plates (3) is 80-100 cm, and the lower portion of the steel plates (30-50 cm) is prefabricated in the bearing platform (2).
4. The slot-in type connection method of the prefabricated pier and the bearing platform as claimed in claim 1, wherein the prefabricated pier (1) is inserted into the bearing platform (2) and then inserted into the longitudinal preformed hole (6) and the transverse preformed hole (5) by using the super-strong bolt (7).
5. The slot-in type connection method of the prefabricated pier and the bearing platform according to claim 1, wherein a groove surrounded by the steel plate (3) is located at the center of the top of the bearing platform (2), the length of the steel plate (3) is 10-15 cm longer than the diameter of the bottom of the prefabricated pier (1), a plurality of longitudinal reserved holes (6) are arranged on each of two sides, the sizes and the intervals of the longitudinal reserved holes (5) are equal, the diameter of each longitudinal reserved hole (6) is 5-8 cm, the interval between the circle centers of the longitudinal reserved holes (6) is 15-20 cm, the distance between each longitudinal reserved hole (6) and the center is 4-5 cm, the distance between each transverse reserved hole (5) and the center is 4-5 cm, and the distance between each transverse reserved hole (5) and the outer edge of the steel plate is 15-20 cm.
6. The slot-in type connection method of a precast pier and a cap according to claim 1, wherein after the super-strong bolt (7) is inserted into the longitudinal preformed hole (6) and the transverse preformed hole (5), high-strength cement mortar (8) is filled in the surrounding gap.
7. A construction method of a prefabricated pier is characterized by comprising the following steps:
A. a steel plate (3) is cast on the upper surface of a bearing platform (2) in a construction site in a cast-in-place mode and is surrounded into a groove, and longitudinal reserved holes (6) and transverse reserved holes (5) are formed in the steel plate (3);
B. prefabricating a pier (1) in advance in a factory, wherein the prefabricated pier (1) is provided with a reserved hole (4), and transporting the prefabricated pier to a construction site for waiting for splicing slots after prefabrication and forming;
C. lifting the prefabricated pier (1) to be right above the bearing platform (2) by adopting a crane, adjusting the direction of the prefabricated pier (1), and enabling the reserved hole of the prefabricated pier (1) to correspond to the reserved hole of the bearing platform (2) in the descending process so as to finish the slot of the bearing platform (2) and the prefabricated pier (1);
D. inserting the super-strong bolts (7) into the reserved holes which are in one-to-one correspondence;
E. and (3) pouring high-strength mortar (8) into the reserved holes (6) of the bridge pier by using a grouting machine to anchor and form the bridge pier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010918497.0A CN114134802A (en) | 2020-09-03 | 2020-09-03 | Slot type connection method for prefabricated bridge pier and bearing platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010918497.0A CN114134802A (en) | 2020-09-03 | 2020-09-03 | Slot type connection method for prefabricated bridge pier and bearing platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114134802A true CN114134802A (en) | 2022-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010918497.0A Pending CN114134802A (en) | 2020-09-03 | 2020-09-03 | Slot type connection method for prefabricated bridge pier and bearing platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114134802A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09158127A (en) * | 1995-12-07 | 1997-06-17 | Mitsubishi Heavy Ind Ltd | Fixing structure of pier reinforcing part and footing |
| KR100642332B1 (en) * | 2006-08-04 | 2006-11-10 | 주식회사 도화종합기술공사 | A fabric for preventing fall of a road bridge |
| CN101413250A (en) * | 2008-11-20 | 2009-04-22 | 中铁大桥勘测设计院有限公司 | Rabbet type connecting method of cross-sea bridge prefabricated bridge pier and platform |
| CN107905092A (en) * | 2017-11-02 | 2018-04-13 | 东南大学 | A kind of prefabricated assembled bridge pier and its assembling and construction method |
| CN111335154A (en) * | 2020-04-15 | 2020-06-26 | 中铁四局集团第二工程有限公司 | Bridge pier column with prefabricated and assembled segments and construction method thereof |
| CN111501526A (en) * | 2020-03-26 | 2020-08-07 | 上海市政工程设计研究总院（集团）有限公司 | Socket type connecting structure of prefabricated bridge pier column and bearing platform and construction method |
-
2020
- 2020-09-03 CN CN202010918497.0A patent/CN114134802A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09158127A (en) * | 1995-12-07 | 1997-06-17 | Mitsubishi Heavy Ind Ltd | Fixing structure of pier reinforcing part and footing |
| KR100642332B1 (en) * | 2006-08-04 | 2006-11-10 | 주식회사 도화종합기술공사 | A fabric for preventing fall of a road bridge |
| CN101413250A (en) * | 2008-11-20 | 2009-04-22 | 中铁大桥勘测设计院有限公司 | Rabbet type connecting method of cross-sea bridge prefabricated bridge pier and platform |
| CN107905092A (en) * | 2017-11-02 | 2018-04-13 | 东南大学 | A kind of prefabricated assembled bridge pier and its assembling and construction method |
| CN111501526A (en) * | 2020-03-26 | 2020-08-07 | 上海市政工程设计研究总院（集团）有限公司 | Socket type connecting structure of prefabricated bridge pier column and bearing platform and construction method |
| CN111335154A (en) * | 2020-04-15 | 2020-06-26 | 中铁四局集团第二工程有限公司 | Bridge pier column with prefabricated and assembled segments and construction method thereof |
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Application publication date: 20220304 |
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