CN111535182A - Tubular bridge girder erection method - Google Patents
Tubular bridge girder erection method Download PDFInfo
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- CN111535182A CN111535182A CN202010242721.9A CN202010242721A CN111535182A CN 111535182 A CN111535182 A CN 111535182A CN 202010242721 A CN202010242721 A CN 202010242721A CN 111535182 A CN111535182 A CN 111535182A
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- construction
- pipe section
- section
- gantry crane
- bridge girder
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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
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a tubular bridge girder erection method, which comprises the following specific steps: prefabricating pipe sections, namely dividing each section into a plurality of construction units, dividing each construction unit into a lower pipe section, an upper pipe section and a folded pipe section, prefabricating in a factory and transporting to a construction site; constructing a foundation; constructing a construction unit, and sequentially hoisting a lower pipe section, an upper pipe section and a folded pipe section; and (5) constructing the whole section, repeating the step three until all construction units of the section are constructed, dismantling the temporary support columns and the support frames on the beams, and finishing construction of the section. The construction method has the advantages that each pipe section is convenient to process and transport, compared with field assembly, an assembly process is not needed, the construction requirement of the tubular bridge girder can be met, the method makes full use of the upper space of the constructed part for construction, the construction floor area is small, the construction speed is high, the method is suitable for the construction of the bridge girder with a closed structure with similar characteristics, and the popularization value is high.
Description
Technical Field
The invention relates to the technical field of bridge construction methods, in particular to a tubular bridge girder erection method.
Background
At present, bridge structures exist more as urban landmarks, so that the requirements on the appearance of bridge designs are higher and higher in consideration of the novelty and originality of the structures. The design of various special-shaped bridges enables the bridge construction process to be adaptively changed according to different bridge configurations.
For a bridge with a tubular structure, the whole bearing main beam structure of the bridge is designed into a tubular shape, and due to the large diameter of the bearing main beam structure, the bearing main beam structure is difficult to process and transport by adopting a prefabrication method, but the field assembly method is lack of the existing process for reference construction, so that the existing process method is difficult to meet the construction requirement of the tubular bridge main beam.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides a tubular bridge girder erection method.
In order to achieve the purpose, the invention adopts the following technical scheme:
a tubular bridge girder erection method comprises the following specific steps:
step one, prefabricating a pipe section,
dividing the tubular bridge girder of each section into a plurality of construction units along the axial direction, then dividing each construction unit into a lower pipe section, an upper pipe section and a folded pipe section from bottom to top in sequence, prefabricating the three pipe sections in a factory and transporting the three pipe sections to a construction site;
step two, constructing a foundation,
constructing bridge substructure, constructing concrete upright column foundations between two adjacent bridge substructure, building temporary support upright columns on the concrete upright column foundations, constructing gantry crane foundations along the full length of the bridge extension, and installing a gantry crane on the gantry crane foundations;
step three, constructing a construction unit,
hoisting a lower pipe section to a pier column and/or a temporary support column of a bridge lower part structure by using a gantry crane, arranging cranes on the lower pipe section after hoisting is finished, erecting upper beam support frames for supporting upper pipe sections on two sides of the lower pipe section by using the cranes, matching the upper parts of the upper beam support frames with the inner side lines of the upper pipe sections, hoisting the upper pipe sections by using the upper beam support frames, and hoisting the folded pipe sections by using the gantry crane after installation;
step four, constructing the whole section,
and repeating the third step from one end of the section until all the construction units of the section are completely constructed, dismantling the temporary support columns and the support frames on the beams, and finishing the construction of the section.
Furthermore, the upper pipe sections on two sides of the construction unit are four equal-length ones.
Furthermore, the gantry crane comprises a first gantry crane and a second gantry crane, the first gantry crane is used for hoisting the lower pipe section, and the second gantry crane is used for hoisting the upper pipe section and the closed pipe section.
Furthermore, when the upper support frame of the beam is erected in the third step, the gantry crane can hoist the lower pipe section of the next construction unit.
Further, the temporary support columns are arranged at intervals or continuously according to the length of the construction unit.
Furthermore, the supporting points at the top of the support frame on the beam are matched with the number and the shape of the upper pipe sections.
Furthermore, the temporary support columns and the support frames on the beams are of truss structures.
The invention has the beneficial effects that: the construction method has the advantages that each pipe section is convenient to process and transport, compared with field assembly, an assembly process is not needed, the construction requirement of the tubular bridge girder can be met, the method makes full use of the upper space of the constructed part for construction, the construction floor area is small, the construction speed is high, the method is suitable for the construction of the bridge girder with a closed structure with similar characteristics, and the popularization value is high.
Drawings
FIG. 1 is a schematic view of a tubular bridge segment division;
FIG. 2 is a schematic view of the construction of a lower pipe section;
FIG. 3 is a schematic view of the construction of the support frame on the beam;
FIG. 4 is a schematic representation of upper pipe section construction;
FIG. 5 is a schematic view of a closed pipe section construction;
FIG. 6 is a schematic view showing the distribution of the cranes and the gantry cranes;
in the figure: 1-lower structure; 2-concrete column foundation; 3-temporary support columns; 4-gantry crane foundation; 5, a first gantry crane; 6-gantry crane II; 7-lower pipe section; 8-upper pipe section; 9-folding the pipe section; 10-a crane; 11-beam upper support frame;
the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.
Detailed Description
The invention is further illustrated by the following examples:
as shown in the figure, the tubular bridge girder erection method comprises the following specific steps:
step one, prefabricating a pipe section,
dividing the tubular bridge girder of each section into a plurality of construction units along the axial direction, then dividing each construction unit into a lower pipe section 7, an upper pipe section 8 and a folding pipe section 9 from bottom to top in sequence, prefabricating the three pipe sections in a factory and transporting the three pipe sections to a construction site;
step two, constructing a foundation,
constructing bridge substructure 1, constructing concrete upright column foundations 2 between two adjacent bridge substructure 1, erecting temporary support upright columns 3 on the concrete upright column foundations 2, constructing a gantry crane foundation 4 along the full length of the bridge in the extending direction, and installing a gantry crane on the gantry crane foundation 4;
step three, constructing a construction unit,
hoisting a lower pipe section 7 to a pier stud and/or a temporary support column 3 of a bridge substructure 1 by using a gantry crane, arranging cranes 10 on the lower pipe section 7 after hoisting is finished, erecting upper beam support frames 11 for supporting an upper pipe section 8 on two sides of the lower pipe section 7 by using the cranes 10, matching the upper parts of the upper beam support frames 11 with the inner side line shape of the upper pipe section 8, hoisting the upper pipe section 8 by using the upper beam support frames 11, and hoisting a folded pipe section 9 by using the gantry crane after installation;
step four, constructing the whole section,
and (5) repeating the third step from one end of the section until all construction units of the section are constructed, dismantling the temporary support upright posts 3 and the support frames 11 on the beams, and finishing construction of the section.
Furthermore, the upper pipe sections 8 on both sides of the construction unit are four equal-length ones.
Further, the gantry crane comprises a first gantry crane 5 and a second gantry crane 6, wherein the first gantry crane 5 is used for hoisting a lower pipe section 7, and the second gantry crane 6 is used for hoisting an upper pipe section 8 and a folded pipe section 9.
Further, when the upper support frame 11 of the beam is erected in the third step, the first gantry crane 5 can hoist the lower pipe section 7 of the next construction unit.
Further, the temporary support columns 3 are arranged at intervals or continuously according to the length of the construction unit.
Furthermore, the pivot of the top of the beam upper support frame 11 is matched with the number and shape of the upper pipe section 8.
Further, the temporary support columns 3 and the beam upper support frames 11 are all truss structures.
The construction method has the advantages that each pipe section is convenient to process and transport, compared with field assembly, an assembly process is not needed, the construction requirement of the tubular bridge girder can be met, the method makes full use of the upper space of the constructed part for construction, the construction floor area is small, the construction speed is high, the method is suitable for the construction of the bridge girder with a closed structure with similar characteristics, and certain popularization value is realized.
The present invention has been described in connection with the specific embodiments, and it is obvious that the specific implementation of the present invention is not limited by the above-mentioned manner, and it is within the protection scope of the present invention as long as various modifications are made by using the method concept and technical solution of the present invention, or the present invention is directly applied to other occasions without modification.
Claims (7)
1. A tubular bridge girder erection method is characterized by comprising the following specific steps:
step one, prefabricating a pipe section,
dividing the tubular bridge girder of each section into a plurality of construction units along the axial direction, then dividing each construction unit into a lower pipe section (7), an upper pipe section (8) and a folding pipe section (9) from bottom to top in sequence, prefabricating the three pipe sections in a factory and transporting the three pipe sections to a construction site;
step two, constructing a foundation,
constructing bridge lower structures (1), constructing concrete upright post foundations (2) between two adjacent bridge lower structures (1), erecting temporary support upright posts (3) on the concrete upright post foundations (2), constructing a gantry crane foundation (4) along the whole length of the bridge in the extending direction, and installing a gantry crane on the gantry crane foundation (4);
step three, constructing a construction unit,
hoisting a lower pipe section (7) to a pier column and/or a temporary support column (3) of a bridge lower part structure (1) by using a gantry crane, arranging cranes (10) on the lower pipe section (7) after hoisting is finished, erecting upper beam support frames (11) for supporting upper pipe sections (8) on two sides of the lower pipe section (7) by using the cranes (10), matching the upper parts of the upper beam support frames (11) with the inner side lines of the upper pipe sections (8), hoisting the upper pipe sections (8) by using the upper beam support frames (11), and hoisting closed pipe sections (9) by using the gantry crane after installation;
step four, constructing the whole section,
and (5) repeating the third step from one end of the section until all construction units of the section are completely constructed, dismantling the temporary support columns (3) and the support frames (11) on the beams, and completing construction of the section.
2. Method for erecting a tubular bridge girder according to claim 1, wherein the upper pipe sections (8) on both sides of the construction unit are four equal-length ones.
3. The tubular bridge girder erection method according to claim 1, wherein the gantry crane comprises a first gantry crane (5) and a second gantry crane (6), the first gantry crane (5) is used for hoisting the lower pipe section (7), and the second gantry crane (6) is used for hoisting the upper pipe section (8) and the folded pipe section (9).
4. The tubular bridge girder erection method according to claim 3, wherein the hoisting of the lower pipe section (7) of the next construction unit is performed by one gantry crane (5) when the upper support frame (11) of the girder is erected in the third step.
5. The tubular bridge girder erection method according to claim 1, wherein the temporary support columns (3) are arranged at intervals or continuously according to the length of the construction unit.
6. Method for tubular bridge girder erection according to claim 1, characterized in that the fulcrums at the top of the upper support frame (11) of the girder are arranged in a number and shape fit with the upper pipe sections (8).
7. The tubular bridge girder erection method according to claim 1, wherein the temporary support columns (3) and the beam upper support frames (11) are of a truss structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010242721.9A CN111535182A (en) | 2020-03-31 | 2020-03-31 | Tubular bridge girder erection method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010242721.9A CN111535182A (en) | 2020-03-31 | 2020-03-31 | Tubular bridge girder erection method |
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| CN111535182A true CN111535182A (en) | 2020-08-14 |
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| CN202010242721.9A Pending CN111535182A (en) | 2020-03-31 | 2020-03-31 | Tubular bridge girder erection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113481856A (en) * | 2021-07-08 | 2021-10-08 | 中国建筑第六工程局有限公司 | Annular bridge tower jacking construction method |
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| KR101001063B1 (en) * | 2010-05-06 | 2010-12-14 | 주식회사 유신 | The gurder to use steel pipe for bridge |
| CN102146660A (en) * | 2011-02-25 | 2011-08-10 | 中交四航局第一工程有限公司 | Installation methods of cross-arch-rib gantry crane and butterfly arch bridge space structure system |
| CN104404862A (en) * | 2014-11-28 | 2015-03-11 | 林同棪国际工程咨询（中国）有限公司 | Steel pipe net frame pedestrian pipeline bridge |
| CN106592406A (en) * | 2016-12-30 | 2017-04-26 | 河南省交通规划设计研究院股份有限公司 | Through tied arch bridge and construction method thereof |
| CN107130509A (en) * | 2017-06-26 | 2017-09-05 | 厦门中平公路勘察设计院有限公司 | A kind of different formed steel construction overpass |
| CN108867391A (en) * | 2018-07-20 | 2018-11-23 | 中国水利水电第七工程局有限公司 | A kind of construction of tubular arch and paving frame parallel operations construction method |
| CN110820517A (en) * | 2019-11-25 | 2020-02-21 | 西南交通大学 | Assembled railway tubular beam |
| CN110847053A (en) * | 2019-11-29 | 2020-02-28 | 中铁二院工程集团有限责任公司 | Construction method of vacuum magnetic suspension prefabricated assembly type pipeline beam |
-
2020
- 2020-03-31 CN CN202010242721.9A patent/CN111535182A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101001063B1 (en) * | 2010-05-06 | 2010-12-14 | 주식회사 유신 | The gurder to use steel pipe for bridge |
| CN102146660A (en) * | 2011-02-25 | 2011-08-10 | 中交四航局第一工程有限公司 | Installation methods of cross-arch-rib gantry crane and butterfly arch bridge space structure system |
| CN104404862A (en) * | 2014-11-28 | 2015-03-11 | 林同棪国际工程咨询（中国）有限公司 | Steel pipe net frame pedestrian pipeline bridge |
| CN106592406A (en) * | 2016-12-30 | 2017-04-26 | 河南省交通规划设计研究院股份有限公司 | Through tied arch bridge and construction method thereof |
| CN107130509A (en) * | 2017-06-26 | 2017-09-05 | 厦门中平公路勘察设计院有限公司 | A kind of different formed steel construction overpass |
| CN108867391A (en) * | 2018-07-20 | 2018-11-23 | 中国水利水电第七工程局有限公司 | A kind of construction of tubular arch and paving frame parallel operations construction method |
| CN110820517A (en) * | 2019-11-25 | 2020-02-21 | 西南交通大学 | Assembled railway tubular beam |
| CN110847053A (en) * | 2019-11-29 | 2020-02-28 | 中铁二院工程集团有限责任公司 | Construction method of vacuum magnetic suspension prefabricated assembly type pipeline beam |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113481856A (en) * | 2021-07-08 | 2021-10-08 | 中国建筑第六工程局有限公司 | Annular bridge tower jacking construction method |
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Application publication date: 20200814 |