CN107974930B - Segment-assembled balance swivel gate-shaped pier and construction method thereof - Google Patents
Segment-assembled balance swivel gate-shaped pier and construction method thereof Download PDFInfo
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- CN107974930B CN107974930B CN201711078532.7A CN201711078532A CN107974930B CN 107974930 B CN107974930 B CN 107974930B CN 201711078532 A CN201711078532 A CN 201711078532A CN 107974930 B CN107974930 B CN 107974930B
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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
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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
- E01D19/04—Bearings; Hinges
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/08—Methods or apparatus specially adapted for erecting or assembling bridges by rotational movement of the bridge or bridge sections
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The invention relates to a segment-assembled balanced swivel gate-shaped pier and a construction method thereof, wherein the segment-assembled balanced swivel gate-shaped pier comprises a swivel pier stud and a non-swivel pier stud; a swivel spherical hinge is arranged between the swivel pier stud and the pier stud foundation; a movable support is arranged at the top of the non-swivel pier column; a prefabricated section assembling cover beam is arranged between the pier tops of the swivel pier stud and the non-swivel pier stud, and a counterweight beam section balanced with the swivel pier stud is arranged on the other side of the swivel pier stud and the non-swivel pier stud; the swivel ball hinge is utilized to implement a balance structure consisting of swivel pier columns, prefabricated section assembling cover beams and counterweight beam sections in a swivel manner, and the swivel is performed to non-swivel pier columns along the line direction of the crossing gate-shaped piers, so that construction is completed. The invention adopts the segmental assembling balanced swivel concrete structure, so the design and construction are simple and convenient, the influence on the operation of crossing lines is minimum, the construction period of the project is saved in the prefabrication and assembly construction, the maintenance and maintenance work and difficulty in the later period are greatly reduced, and the invention is more economic and reasonable.
Description
Technical Field
The invention relates to the technical field of bridge engineering, in particular to a section-assembled balanced swivel gate-shaped pier and a construction method thereof.
Background
In recent years, the construction of the national traffic infrastructure is developed rapidly, particularly, the development of high-speed railways represented by passenger special lines and high-speed highways in highway engineering is prominent, the lines are inevitably and repeatedly intersected with the existing busy trunk railways and the existing busy trunk highways, when the included angle between the lines and the existing busy trunk highways is small, the gate-shaped piers become an economical and reasonable choice, the span of crossing the existing road and bridge can be greatly reduced, the engineering investment is saved, the economic benefit is very obvious, and the method is widely applied to the actual engineering.
The existing gate pier design mostly adopts the connection form of in-situ support cast-in-place concrete (cover) beams or steel (cover) beams. The in-situ cast concrete (cover) beam needs to set up a bracket and cast concrete above the existing road, so that the construction period is long, the operation of the existing road is greatly influenced, the influence on the existing busy trunk line is particularly prominent, and particularly when the existing railway is crossed, the implementation scheme of the in-situ cast concrete (cover) beam is difficult to be approved by the existing line management party; in order to reduce the operation interference on the existing road, another door-shaped pier-steel (cover) beam scheme is developed, the scheme adopts a steel structure, has light dead weight and generally adopts hoisting construction, but the scheme has the defects of high engineering cost, large later maintenance workload, difficult inspection and maintenance on the existing road (on the existing railway in a high-pressure contact net), and the like.
Disclosure of Invention
The invention aims to provide a segment-assembled balanced swivel gate-shaped pier and a construction method thereof, which avoid the defects of in-situ support cast-in-place concrete (cover) beams or steel (cover) beams, save the construction period and reduce the construction cost under the condition of reducing the operation interference on crossing lines.
The technical scheme adopted by the invention is as follows:
section assembly balance gate type mound of turning, its characterized in that:
comprises a swivel pier stud and a non-swivel pier stud;
the bottom of the turning pier column is a pier column foundation, and a turning spherical hinge is arranged between the turning pier column and the pier column foundation;
the bottom of the non-swivel pier column is a pier column foundation, and the top of the non-swivel pier column is provided with a movable support;
and a prefabricated section assembling cover beam is arranged between the pier tops of the swivel pier columns and the non-swivel pier columns.
The pier top of the swivel pier column is symmetrically provided with counterweight beam sections in the prefabricated section assembling cover beam, and the prefabricated section assembling cover beam and the counterweight beam sections form a balance structure relative to the swivel pier column in front of a swivel.
The prefabricated section assembling capping beam is formed by assembling sections prefabricated in sections.
The counterweight beam section is formed by assembling subsection prefabricated sections.
And steel bundle channels are reserved in the precast segment assembled capping beams and are provided with steel bundles, and the steel bundles comprise permanent steel bundles and temporary steel bundles.
And a steel bundle pore channel is reserved in the counterweight beam section and is provided with a steel bundle, and the steel bundle is a temporary steel bundle.
The top end of the non-swivel pier stud is connected with the bottom surface of the end part of the prefabricated section assembling bent cap through a movable support.
The construction method of the segment assembled balanced swivel gate pier is characterized in that:
the method comprises the following steps:
the method comprises the following steps: constructing pier column foundations of rotating pier columns and non-rotating pier columns on the left side and the right side of the existing line; then, constructing a non-swivel pier stud, and installing a swivel spherical hinge between the swivel pier stud and a pier stud foundation along the crossing line direction of the gate-shaped pier; constructing a rotating pier stud;
step two: prefabricating a counterweight beam section and each prefabricated section of the prefabricated section assembly cover beam on a construction site, and reserving a steel bundle pore channel; after the maintenance reaches the strength, symmetrically installing prefabricated section assembling cover beams and counterweight beam sections on two sides of the swivel pier column section by section along the crossing line direction of the gate-shaped pier, and tensioning temporary steel bundles in the prefabricated section assembling cover beams and the counterweight beam sections to enable the prefabricated section assembling cover beams and the counterweight beam sections to form a balance structure relative to the swivel pier column;
step three: reserving a movable support hole at the top end of the non-swivel pier stud, removing a temporary fixing measure at a swivel spherical hinge, and implementing a balance structure consisting of the swivel pier stud, the prefabricated section assembling cover beam and the counterweight beam section by the swivel by using the swivel spherical hinge, wherein the swivel pier is swiveled to the non-swivel pier stud along the line crossing direction of the gate-shaped pier;
step four: tensioning permanent steel bundles in the prefabricated segmental assembled capping beam, dismantling the counterweight beam segments and all temporary steel bundles segment by segment, and installing a movable support at the top of the non-swivel pier stud to form connection between the prefabricated segmental assembled capping beam and the non-swivel pier stud;
step five: and then, performing consolidation measures of the swivel spherical hinge and grouting of the prestressed duct to complete construction of assembling the section assembly balance swivel gate-shaped pier.
The invention has the following advantages:
1. the prefabricated section assembling capping beam is installed along the crossing line direction of the gate-shaped pier, so that balanced swivel construction is realized, the construction period above the existing road is greatly saved, the interference on the operation of the existing road is minimized, the construction quality can be ensured due to the prefabricated section assembling construction, and meanwhile, the prefabricated section assembling capping beam can be constructed in parallel with the pier stud, so that the construction period is further saved;
2. the cast-in-place concrete support and the protective shed frame above the existing road are eliminated, so that the building height can be reduced, and the height of the line is effectively reduced;
3. compared with steel (cover) beam, the concrete structure is adopted, so that the maintenance and maintenance work and difficulty in later period are greatly reduced, and the engineering investment is saved obviously.
Because the invention adopts the segment-assembled balanced swivel concrete structure, the construction period above the existing road is greatly saved, the influence on the operation interference of the crossing line is minimum, the quality of the beam segments is ensured by prefabrication and assembly, the construction period can be saved by parallel construction, the elevation of the line is effectively reduced, the engineering investment is saved, and meanwhile, the later maintenance and maintenance work and difficulty are greatly reduced, and the invention is more economic and reasonable.
Drawings
FIG. 1 is a block diagram of the present invention.
Fig. 2 is a structural view before turning.
Fig. 3 is a structural diagram of the swivel after the counterweight segment is removed.
In the figure, 1-pier column foundation, 2-swivel ball hinge, 3-swivel pier column, 4-prefabricated section assembled capping beam, 5-counterweight beam section, 6-first tensioning permanent steel bundle, 7-other permanent steel bundle, 8-temporary steel bundle, 9-non-swivel pier column and 10-movable support.
Detailed Description
The present invention will be described in detail with reference to specific embodiments.
The invention relates to a segment-assembled balanced swivel gate-shaped pier which comprises swivel piers 3 and non-swivel piers 9, wherein the swivel piers and the non-swivel piers are respectively positioned on two sides of an existing line. The bottom of the turning pier stud 3 is a pier stud foundation 1, and a turning spherical hinge 2 is arranged between the turning pier stud 3 and the pier stud foundation 1. The bottom of the non-swivel pier stud 9 is a pier stud foundation 1, the top of the non-swivel pier stud 9 is provided with a movable support 10, and the top end of the non-swivel pier stud 9 is connected with the bottom surface of the end part of the prefabricated section assembling bent cap 4 through the movable support 10. And a prefabricated section assembling bent cap 4 is arranged between the pier tops of the swivel pier stud 3 and the non-swivel pier stud 9.
The pier top of the swivel pier stud 3 is symmetrically provided with a counterweight beam section 5 in the prefabricated section assembling cover beam 4, and the prefabricated section assembling cover beam 4 and the counterweight beam section 5 form a balance structure relative to the swivel pier stud 3 in front of a swivel.
The prefabricated section assembling bent cap 4 is formed by assembling sections prefabricated in sections. And steel bundle channels are reserved in the precast segment assembling bent cap 4 and are provided with steel bundles, and the steel bundles comprise permanent steel bundles and temporary steel bundles.
The counterweight beam section 5 is also composed of segmental assembling of segmental prefabrication. The counterweight beam section 5 is reserved with steel bundle pore channels and arranged with steel bundles, and the steel bundles are temporary steel bundles.
The construction method of the segment-assembled balanced swivel gate pier comprises the following steps:
the method comprises the following steps: constructing pier column bases 1 of rotating pier columns 3 and non-rotating pier columns 9 on the left side and the right side of the existing line; then, constructing a non-swivel pier stud 9, and installing a swivel spherical hinge 2 between the swivel pier stud 3 and the pier stud foundation 1 along the crossing line direction of the gate-shaped pier; then constructing a swivel pier stud 3;
step two: prefabricating the counterweight beam section 5 and each section of the prefabricated section assembling cover beam 4 on a construction site, and reserving a steel bundle pore channel; after the maintenance reaches the strength, symmetrically installing prefabricated section assembling cover beams 4 and counterweight beam sections 5 section by section on two sides of the swivel pier stud 3 along the crossing line direction of the gate-shaped pier, and tensioning temporary steel bundles 8 in the prefabricated section assembling cover beams 4 and the counterweight beam sections 5 to enable the prefabricated section assembling cover beams 4 and the counterweight beam sections 5 to form a balance structure relative to the swivel pier stud 3;
step three: reserving a hole of a movable support 10 at the top end of the non-swivel pier stud 9, removing a temporary fixing measure at a swivel spherical hinge 2, and using the swivel spherical hinge 2 to swivel a balance structure consisting of a swivel pier stud 3, a prefabricated section assembling cover beam 4 and a counterweight beam section 5, and swivel the balance structure onto the non-swivel pier stud 9 along the crossing line direction of a gate-shaped pier;
step four: tensioning permanent steel bundles 6 in the prefabricated section assembling bent cap 4, dismantling the counterweight beam sections 5 and all temporary steel bundles 8 section by section, and installing a movable support 10 at the top of a non-swivel pier stud 9 to ensure that the prefabricated section assembling bent cap 4 is connected with the non-swivel pier stud 9;
step five: and then, solidifying measures of the swivel spherical hinge 2 and prestressed duct grouting are carried out, and construction of the segment assembled balance swivel gate-shaped pier is completed.
The counterweight beam section 5 can be repeatedly used on other gate-shaped piers, and can also be flexibly processed to form a balance structure by adopting a counterweight mode of placing a counterweight sandbag or a water tank by using an angle steel bracket according to the construction site condition. Because the concrete construction of the part is carried out outside the limit of the existing road, the operation of the existing road is not influenced. The prefabricated segment can be constructed in parallel with the pier stud, and the construction period is further saved.
The invention is not limited to the examples, and any equivalent changes to the technical solution of the invention by a person skilled in the art after reading the description of the invention are covered by the claims of the invention.
Claims (6)
1. Section assembly balance turning gate type mound, its characterized in that:
comprises a rotating pier column (3) and a non-rotating pier column (9);
the bottom of the rotating pier column (3) is provided with a pier column foundation (1), and a rotating spherical hinge (2) is arranged between the rotating pier column (3) and the pier column foundation (1);
the bottom of the non-swivel pier stud (9) is provided with a pier stud foundation (1), and the top of the non-swivel pier stud (9) is provided with a movable support (10);
a prefabricated section assembling bent cap (4) is arranged between the pier top of the swivel pier column (3) and the non-swivel pier column (9);
the pier top of the swivel pier column (3) is provided with counterweight beam sections (5) symmetrically to the prefabricated section assembling cover beam (4), and the prefabricated section assembling cover beam (4) and the counterweight beam sections (5) form a balance structure relative to the swivel pier column (3) before swiveling;
the prefabricated section assembling capping beam (4) is formed by assembling sections prefabricated in sections.
2. The segment assembled balanced swivel gate pier of claim 1, wherein:
the counterweight beam section (5) is formed by assembling subsection prefabricated sections.
3. The segment assembled balanced swivel gate pier of claim 1, wherein:
and steel bundle channels are reserved in the precast segment assembling bent cap (4) and steel bundles are arranged in the precast segment assembling bent cap, and the steel bundles comprise permanent steel bundles and temporary steel bundles.
4. The segment assembled balanced swivel gate pier of claim 1, wherein:
the counterweight beam section (5) is reserved with steel bundle pore channels and arranged with steel bundles, and the steel bundles are temporary steel bundles.
5. The segment assembled balanced swivel gate pier of claim 1, wherein:
the top end of the non-swivel pier stud (9) is connected with the bottom surface of the end part of the prefabricated section assembling bent cap (4) through a movable support (10).
6. The construction method of the segment assembled balanced swivel gate pier is characterized in that:
the method comprises the following steps:
the method comprises the following steps: constructing pier column bases (1) of rotating pier columns (3) and non-rotating pier columns (9) on the left side and the right side of the existing line; then, constructing a non-swivel pier stud (9), installing a swivel spherical hinge (2) between the swivel pier stud (3) and the pier stud foundation (1) along the direction of the crossing line of the gate-shaped pier; then constructing a rotating pier column (3);
step two: prefabricating each section of the counterweight beam section (5) and the prefabricated sections to assemble the capping beam (4) on a construction site, and reserving a steel bundle pore channel; after the maintenance reaches the strength, symmetrically installing prefabricated section assembling cover beams (4) and counterweight beam sections (5) on two sides of the swivel pier column (3) section by section along the crossing line direction of the gate-shaped pier, and tensioning temporary steel bundles (8) in the prefabricated section assembling cover beams (4) and the counterweight beam sections (5) to enable the prefabricated section assembling cover beams (4) and the counterweight beam sections (5) to form a balance structure relative to the swivel pier column (3);
step three: reserving a movable support (10) hole at the top end of a non-swivel pier (9), removing a temporary fixing measure at a swivel spherical hinge (2), and implementing a balance structure consisting of a swivel pier (3), a prefabricated section assembling cover beam (4) and a counterweight beam section (5) by a swivel by using the swivel spherical hinge (2), wherein the swivel is arranged on the non-swivel pier (9) along the crossing line direction of a portal pier;
step four: tensioning permanent steel bundles (6) in the prefabricated segmental assembled capping beam (4), dismantling the counterweight beam sections (5) and all temporary steel bundles (8) section by section, and installing a movable support (10) at the top of the non-swivel pier stud (9) to form connection between the prefabricated segmental assembled capping beam (4) and the non-swivel pier stud (9);
step five: and then, performing consolidation measures of the swivel spherical hinge (2) and grouting of the prestressed duct to finish construction of assembling the balanced swivel gate-shaped pier by the segments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711078532.7A CN107974930B (en) | 2017-11-06 | 2017-11-06 | Segment-assembled balance swivel gate-shaped pier and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711078532.7A CN107974930B (en) | 2017-11-06 | 2017-11-06 | Segment-assembled balance swivel gate-shaped pier and construction method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN107974930A CN107974930A (en) | 2018-05-01 |
| CN107974930B true CN107974930B (en) | 2023-04-11 |
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| CN113026542A (en) * | 2021-03-22 | 2021-06-25 | 中国铁路设计集团有限公司 | Frame pier structure with one end fixedly connected and one end movable and construction method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200241295Y1 (en) * | 2001-01-11 | 2001-09-26 | 한국토지공사 | Pier revolution apparatus and T-type pier construction structure using the same |
| CN102154984B (en) * | 2011-01-24 | 2012-02-15 | 中国土木工程集团有限公司 | Method for constructing overpass gate-type pier spanning over electrified railway |
| CN103981803B (en) * | 2014-05-30 | 2016-04-13 | 中铁第一勘察设计院集团有限公司 | The combined gate pier of precast assembly and construction method thereof |
| CN203878459U (en) * | 2014-05-30 | 2014-10-15 | 中铁第一勘察设计院集团有限公司 | Box type prestressed concrete cap beam structure applied to gate-type pier |
| CN107100087A (en) * | 2017-06-26 | 2017-08-29 | 中铁西南科学研究院有限公司 | Simply supported beam rotator construction technique |
| CN207452687U (en) * | 2017-11-06 | 2018-06-05 | 中铁第一勘察设计院集团有限公司 | A kind of section assembling balance swivel gate pier |
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