CN114045740B - Upright post applied to upper bearing arch bridge and construction method thereof - Google Patents
Upright post applied to upper bearing arch bridge and construction method thereof Download PDFInfo
- Publication number
- CN114045740B CN114045740B CN202111385143.5A CN202111385143A CN114045740B CN 114045740 B CN114045740 B CN 114045740B CN 202111385143 A CN202111385143 A CN 202111385143A CN 114045740 B CN114045740 B CN 114045740B
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- upright post
- arch
- main
- plate
- column
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- 238000010276 construction Methods 0.000 title abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 description 6
- 238000005452 bending Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 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
- 230000003313 weakening effect Effects 0.000 description 1
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
- E01D4/00—Arch-type bridges
-
- 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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
Abstract
The invention discloses a stand column applied to an upper-bearing arch bridge, wherein the upper end and the lower end of the stand column are connected with a main girder and a main arch in a hinged mode. The invention also discloses a construction method of the upright post of the upper bearing arch bridge, which comprises the steps of firstly, pouring the abutment and the arch seat; step two, erecting a main arch; step three, installing an upright post; step four, installing a main beam; and fifthly, installing an upright post sealing plate. The invention can eliminate stress concentration at the end part of the upright post, simplify the structure of the upright post, save the manufacturing cost, make the stress system of the structure more definite, have more beautiful appearance and have better durability of the node.
Description
Technical Field
The invention relates to a column structure and a construction method thereof, in particular to a column applied to an upper bearing arch bridge and a construction method thereof, and belongs to the technical field of bridge construction.
Background
The upper bearing arch bridge has the advantages of beautiful shape, high structural rigidity, strong bearing capacity, low building height and the like, and is particularly suitable for river-crossing and ditch-crossing bridges in some small and medium-sized cities. For the upper bearing arch bridge, the upper bearing arch bridge mainly comprises four parts of bridge decks on two sides, a main girder, a main arch and a vertical upright post. Because the main arch is constrained by the bridge abutment, the main girder can generate horizontal displacement relative to the main arch under the temperature load, so that larger bending moment and shearing force are generated on the upright post, and the safety and the service life of the bridge are affected.
In order to avoid bending or shearing damage of the vertical upright post, the traditional solution is to increase the section size or wall thickness of the upright post. Because the longitudinal displacement of the main beam is basically unchanged under the action of temperature and the bending rigidity of the upright post is far smaller than the axial rigidity of the main beam, the method for reducing the stress of the end part of the upright post by increasing the bending rigidity of the upright post has poor effect.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a stand column applied to an upper-bearing arch bridge and a construction method thereof.
The invention is realized in particular as follows:
the upper end and the lower end of the upright post are connected with the main girder and the main arch in a hinged mode.
The further scheme is as follows:
The stand includes the stand cylinder, and stand cylinder upper and lower both ends all are provided with the articulated joint, and the articulated joint outside is provided with the shrouding.
The further scheme is as follows:
The upright post column comprises four side plates and vertical reinforcement ribs positioned inside the side plates.
The further scheme is as follows:
The hinged joint consists of a rectangular diaphragm plate and a plurality of stiffening plates.
The further scheme is as follows:
The stiffening plate is of a structure with wide bottom and narrow top, and the shape of the stiffening plate can be divided into three sections from bottom to top: the lower part is wider, the upper part is narrower and the middle part is trapezoidal, and a chamfer joint with the diameter of 2-4 cm is arranged between every two adjacent sections.
The further scheme is as follows:
the lower part of the stiffening plate is connected with a vertical stiffening rib inside the column body of the column.
The further scheme is as follows:
The sealing plate is a frame-shaped structure consisting of two longitudinal sealing plates and two transverse sealing plates.
The further scheme is as follows:
symmetrical open type cuts are formed in two sides of the longitudinal sealing plate; the cross section of the transverse sealing plate is consistent with the shape of the outer edge line of the side edge of the longitudinal sealing plate.
The invention also provides a construction method of the upright post of the upper bearing arch bridge, which comprises the following steps:
Pouring bridge abutment and arch abutment;
step two, erecting a main arch;
step three, installing an upright post;
step four, installing a main beam;
and fifthly, installing an upright post sealing plate.
The further scheme is as follows:
When the upright post is installed, the transverse partition plate of the hinged joint is aligned with the stiffening plate inside the main arch and the main girder.
The further scheme is as follows:
when the upright post is installed, only the diaphragm plate of the hinged joint is welded with the main arch and the main girder.
In the invention, the abutment in the first step can be a gravity type or pile foundation abutment; the arch seat can be a steel structure hinged or fixedly connected arch seat; the main arch is of a steel structure. In actual construction, the main arch can be prefabricated in a factory, and then is hoisted and welded on site.
According to the conventional mode, in the second step, the main arch is fixed on the bridge abutment through the steel arch base, and the main arch can be provided with a column base at a column mounting position in advance in the factory prefabrication production process; the main arch and the upright post base are internally provided with vertical reinforcement ribs.
In the third step, the lower part of the upright post is arranged on an upright post base, and the base is fixed on the main arch; the upper surface of the upright post base is a horizontal plane; the end of the upright post can be hinged and rotated in the longitudinal bridge direction; the upper end and the lower end of the upright post are designed by adopting a hinged structure. Generally, the ends of the columns can undergo free relative rotation or have a rotational stiffness less than 1/10 of the stiffness of the column body of the column.
More specifically, the end head of the upright post realizes the articulation of the upright post by a method of weakening the cross section of the end part, and the moment of inertia of the longitudinal bridge of the upright post is smaller than 1/10 of the moment of inertia of the middle part of the upright post at the weakest part of the cross section.
In the fourth step, the girder prefabricated section is hoisted and welded, so that the girder, the upright post and the main arch form a stressed whole.
In the fifth step, the sealing plates at the end parts of the vertical columns are sealed and welded.
The invention has at least the following beneficial effects:
1. Eliminating stress concentration at the end part of the upright post: because of adopting the upright post hinge structure, the phenomenon of stress concentration at the end part of the upright post due to the relative displacement of the girder and the longitudinal bridge of the main arch under the temperature load is eliminated, and the stress of the whole structure of the arch bridge is optimized.
2. The upright post structure is simplified, and the manufacturing cost is saved: after the upright posts are hinged, the end parts of the upright posts are not subjected to bending shear loads, and the upright posts can be designed to be lighter and thinner, so that the structural design of the upright posts can be simplified, and the use of materials and the construction cost are reduced.
3. The structural stress system is more definite: after the upright posts are hinged, the stress system of the upper bearing arch bridge of the hinged upright posts is more definite, the upper main girder structure is similar to a continuous girder structure, the hinged upright posts are similar to supports only bearing vertical loads, and the main arch only bears upper loads transferred from the upright posts;
4. the appearance is more beautiful: compared with the traditional upright post adopting the fixedly connection, the hinged upright post is relatively slim in structural section and relatively attractive and coordinated in structural whole as the hinged upright post only needs to bear axial load.
5. The node durability is better: because only the hinged joint diaphragm plate is connected with the main beam and the main arch, the stress at the joint is smaller under the temperature load, and meanwhile, the durability of the joint of the hinged upright post is better in consideration of the totally-enclosed protection effect of the sealing plate.
Drawings
FIG. 1 is a schematic view of a hinged column.
Fig. 2 is a schematic view of a portion of an articulated column of embodiment 1.
Fig. 3 is a view showing the structure of the hinge terminal of embodiment 1.
Fig. 4a view of the hinge head of example 1.
FIG. 5 example 1 end support core schematic.
Fig. 6 is a schematic view of the connection of the upper end of embodiment 1 to the main beam.
FIG. 7 is a schematic view showing the connection of the lower head of embodiment 1 to the main arch.
Fig. 8 is a schematic structural view of a seal plate of embodiment 1.
Fig. 9 is a construction flow chart.
Wherein: 1-bridge abutment and arch abutment, 2-girder, 21-girder stiffening rib, 3-main arch, 31-column base, 32-main arch stiffening plate, 33-column base stiffening plate, 4-hinged column, 41-shrouding, 411-longitudinal shrouding, 412-transverse shrouding, 42-column, 421-side plate, 422-vertical stiffening rib, 43-hinged joint, 431-diaphragm, 432-stiffening rib.
Detailed Description
For a better understanding of the present invention, the present invention will be further described with reference to the drawings and specific examples.
Fig. 1 is a floor plan view of an articulated column overhead arch bridge, wherein the upper and lower ends of the column 4 are in an articulated configuration with the main beams 2 and the main arch 3.
The hinged upright post upper bearing arch bridge and the construction method thereof are further described below in connection with a certain engineering case.
The hinged upright post upper bearing arch bridge and the construction method thereof, as shown in fig. 2-9, specifically comprises the following construction steps:
step one, pouring bridge abutment and arch abutment
Pouring bridge abutment and arch abutment 1 according to the conventional mode;
step two, erecting a main arch
1) When the main arch is erected, the main arch is prefabricated in a factory section and then transported to the site for hoisting and welding;
2) When the main arch is prefabricated in a factory, a column base 31 is installed in advance at a column installation position;
Step three, installing a hinged upright post
1) As shown in fig. 3, the pillar hinge ends mainly consist of end closure plates 41, pillar columns 42, and hinge joints 43.
2) The upright post body 42 comprises four side plates 421 and vertical reinforcement ribs 422 positioned inside the side plates; the column body 42 and the hinge joint 43 have been welded in advance in the factory as a whole at the time of column installation.
3) As shown in fig. 5, the column hinge joint 43 is mainly composed of a diaphragm plate 431 and 4 reinforcing ribs 432.
4) The hinge joint stiffening rib 432 has a structure with a wide bottom and a narrow top, and can be divided into three sections: the lower part is wider, the upper part is narrower and the middle part is trapezoidal, and a chamfer structure with the diameter of 2-4 cm is arranged between each two sections.
5) As shown in fig. 5, the rib 422 inside the column body 42 corresponds to the diaphragm 431 and the rib 432 of the hinge joint 43.
6) As shown in fig. 6, when the column is installed, the hinge joint diaphragm 431 corresponds to the column base reinforcing plate 33 and the main arch reinforcing plate 32 inside the main arch, so that the load transferred from the column can be uniformly transferred to the main arch.
7) The column base reinforcing plate 33 and the main arch reinforcing plate 32 inside the main arch are arranged along the axis of the column.
8) When the hinge upright post is welded, the hinge joint diaphragm 431 and the base inner diaphragm 33 are welded.
Step four, installing a girder
1) When the girder is installed, the girder is prefabricated in sections in a factory, and then transported to the site for hoisting and welding
2) As shown in fig. 7, when the column is installed, the hinged joint diaphragm 431 corresponds to the main beam inner diaphragm 21, ensuring that the load on the main beam is transferred to the column along the main beam and joint diaphragms 21 and 431.
3) The transverse reinforcing plates 431 of the main beam inner diaphragm plate 21 and the hinge structure at the upper part of the upright post are arranged coaxially.
4) When the main beam is welded with the hinged upright post, only the hinged joint diaphragm 431 and the main beam bottom plate at the position of the main beam vertical reinforcement rib 21 are welded.
Step five, mounting an upright post sealing plate
1) As shown in fig. 8, the column sealing plate is a frame structure consisting of two longitudinal sealing plates 411 and two transverse sealing plates 412;
2) The transverse sealing plate 412 is provided with open openings, which are symmetrically distributed on both sides of the transverse sealing plate.
3) The open openings in the transverse sealing plates may also be in other forms, such as semi-circular, rectangular with chamfers or other combinations, etc.
4) The longitudinal seal plates 411 are arranged along the contour lines of both sides of the transverse seal plates.
5) The upright post sealing plate is composed of steel plates with smaller thickness.
Although the application has been described herein with reference to the above-described illustrative embodiments thereof, the foregoing embodiments are merely preferred embodiments of the present application, and it should be understood that the embodiments of the present application are not limited to the above-described embodiments, and that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope and spirit of the principles of this disclosure.
Claims (3)
1. Be applied to stand of upper bracket type arch bridge, its characterized in that:
The upper end and the lower end of the upright post are connected with the main beam and the main arch in a hinged manner;
The upright post comprises an upright post column body, the upper end and the lower end of the upright post column body are respectively provided with a hinged joint, and the outer side of the hinged joint is provided with a sealing plate;
The upright post column comprises four side plates and vertical reinforcement ribs positioned in the side plates;
The hinged joint consists of a rectangular diaphragm plate and a plurality of stiffening plates;
The stiffening plate is of a structure with wide bottom and narrow top, and the shape of the stiffening plate can be divided into three sections from bottom to top: a lower wider section, an upper narrower section and a middle trapezoid section, wherein a chamfer joint with the diameter of 2-4 cm is arranged between every two adjacent sections;
the sealing plates are of a frame-shaped structure consisting of two longitudinal sealing plates and two transverse sealing plates;
Symmetrical open type cuts are formed in two sides of the longitudinal sealing plate; the cross section of the transverse sealing plate is consistent with the shape of the outer edge line of the side edge of the longitudinal sealing plate;
the lower part of the stiffening plate is connected with a vertical stiffening rib inside the column body of the column.
2. The method for constructing the upright post of the upper arch bridge according to claim 1, which is characterized by comprising the following steps:
Pouring bridge abutment and arch abutment;
step two, erecting a main arch;
step three, installing an upright post;
step four, installing a main beam;
and fifthly, installing an upright post sealing plate.
3. The method for constructing the upright post of the upper arch bridge according to claim 2, wherein the method comprises the following steps:
When the upright post is installed, the transverse partition plate of the hinged joint is aligned with the stiffening plate in the main arch and the main girder; and only the transverse partition plate of the hinged joint is welded with the main arch and the main beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111385143.5A CN114045740B (en) | 2021-11-22 | 2021-11-22 | Upright post applied to upper bearing arch bridge and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111385143.5A CN114045740B (en) | 2021-11-22 | 2021-11-22 | Upright post applied to upper bearing arch bridge and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114045740A CN114045740A (en) | 2022-02-15 |
| CN114045740B true CN114045740B (en) | 2024-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111385143.5A Active CN114045740B (en) | 2021-11-22 | 2021-11-22 | Upright post applied to upper bearing arch bridge and construction method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007205139A (en) * | 2006-02-06 | 2007-08-16 | Sumitomo Mitsui Construction Co Ltd | Construction method of arch bridge |
| CN202347434U (en) * | 2011-11-16 | 2012-07-25 | 梁正裕 | Pre-hinging structure |
| JP2017048611A (en) * | 2015-09-02 | 2017-03-09 | 三井住友建設株式会社 | Bridging method of arch bridge |
| CN209412680U (en) * | 2018-12-03 | 2019-09-20 | 中铁第四勘察设计院集团有限公司 | A kind of V-arrangement valley arch bridge across railway concrete greatly |
| CN110396943A (en) * | 2019-08-22 | 2019-11-01 | 中铁二十局集团第三工程有限公司 | The Deck Arch Bridges construction segmented movement of steel arch-shelf and Lift-on/Lift-off System and method |
| JP2019199761A (en) * | 2018-05-17 | 2019-11-21 | 国立大学法人宇都宮大学 | Plastic hinge structure of rc columnar structure and method for repairing plastic hinge part of rc columnar structure |
| CN111335137A (en) * | 2020-04-08 | 2020-06-26 | 深圳市市政设计研究院有限公司 | Deck type arch bridge structure and construction method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT520386B1 (en) * | 2017-08-24 | 2019-10-15 | Univ Wien Tech | Method of making an integral bridge and integral bridge |
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2021
- 2021-11-22 CN CN202111385143.5A patent/CN114045740B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007205139A (en) * | 2006-02-06 | 2007-08-16 | Sumitomo Mitsui Construction Co Ltd | Construction method of arch bridge |
| CN202347434U (en) * | 2011-11-16 | 2012-07-25 | 梁正裕 | Pre-hinging structure |
| JP2017048611A (en) * | 2015-09-02 | 2017-03-09 | 三井住友建設株式会社 | Bridging method of arch bridge |
| JP2019199761A (en) * | 2018-05-17 | 2019-11-21 | 国立大学法人宇都宮大学 | Plastic hinge structure of rc columnar structure and method for repairing plastic hinge part of rc columnar structure |
| CN209412680U (en) * | 2018-12-03 | 2019-09-20 | 中铁第四勘察设计院集团有限公司 | A kind of V-arrangement valley arch bridge across railway concrete greatly |
| CN110396943A (en) * | 2019-08-22 | 2019-11-01 | 中铁二十局集团第三工程有限公司 | The Deck Arch Bridges construction segmented movement of steel arch-shelf and Lift-on/Lift-off System and method |
| CN111335137A (en) * | 2020-04-08 | 2020-06-26 | 深圳市市政设计研究院有限公司 | Deck type arch bridge structure and construction method thereof |
Non-Patent Citations (2)
| Title |
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| 大跨度上承式钢箱桁肋拱桥设计;王金磊等;《工程与建设》;第45-47页 * |
| 葛俊颖等.《桥梁工程（上）》.中国铁道出版社,2007,第212-216页. * |
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| CN114045740A (en) | 2022-02-15 |
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