CN111321660A - W-shaped bridge pier - Google Patents
W-shaped bridge pier Download PDFInfo
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- CN111321660A CN111321660A CN202010271577.1A CN202010271577A CN111321660A CN 111321660 A CN111321660 A CN 111321660A CN 202010271577 A CN202010271577 A CN 202010271577A CN 111321660 A CN111321660 A CN 111321660A
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- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 239000011150 reinforced concrete Substances 0.000 claims description 13
- 238000010276 construction Methods 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 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
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- Engineering & Computer Science (AREA)
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- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a W-shaped pier which comprises an upper pier body, a lower pier body and a bent cap, wherein the upper pier body is W-shaped, the top of the upper pier body is connected with the bent cap, the bottom of the upper pier body is connected with the lower pier body, and the lower pier body is a double-column pier. By applying the W-shaped pier, the upper pier body at the upper part is W-shaped, so that the support arrangement of a wide girder bridge can be better adapted, the cantilever arm is shorter, the stress is reasonable, the defect of the traditional Y-shaped single-column pier in the wide girder bridge is effectively overcome, the construction is convenient, the pier is provided with a cavity, and the material is saved; meanwhile, the lower pier body is a double-column pier, and compared with a three-column pier or large-volume pier body design adopted by a traditional wide beam bridge, the lower pier body can also achieve the effects of saving the ground under the bridge and reducing the construction cost; the W-shaped pier is simple in structure, convenient to manufacture and good in effect.
Description
Technical Field
The invention relates to the field of bridges, in particular to a W-shaped bridge pier.
Background
The bridge is a life line of traffic, the traffic flow is increased rapidly along with the rapid development of national economy, the construction of high-speed railways, highways, urban municipal roads and urban rail traffic and the joint construction of more and more bridges by adopting highways and railways (rail traffic) bring huge challenges to the construction of urban bridges. In the design process, the influence of limited land resources is required to be considered while the stress is met, various underground pipelines and various buildings and structures in cities need to be avoided, and therefore how to effectively optimize the structural form of the bridge pier, the requirement of passing under the bridge is met to the maximum extent, the attractiveness of the bridge is guaranteed, and the method becomes an indispensable content in bridge design.
On the other hand, in order to adapt to the rapid development of urban traffic and the continuous widening of roads, the wide girder bridge with multiple lanes, dual-purpose use of highway and railway and the like correspondingly plays an increasingly important role in design and construction. In the existing bridge engineering, the lower structure of the wide-body bridge is designed in the form of a Y-shaped single-column pier 03 shown in fig. 1 or a three-column pier 04 shown in fig. 2. The various Y-shaped single-column piers 03 with wide top and narrow bottom have the advantages of beautiful and concise shape, good understructure visibility, small construction interference and the like, however, when the pier is applied to a wide bridge, the construction difficulty is increased, and meanwhile, the whole bridge is too bloated due to the large-size pier body, the waste of materials is also caused, and the pier is not beneficial to saving and cost control. The three-column pier 04 can save a part of engineering materials compared with a single-column pier, but needs more ground under a bridge, which is not favorable for the traffic planning of the whole city.
Disclosure of Invention
The invention aims to: the problem that the Y-shaped single-column pier for the wide-beam bridge is difficult to construct and is not beneficial to material saving and cost control, and the three-column pier needs more ground under the bridge and is not beneficial to traffic planning of the whole city in the prior art is solved.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a W type pier, includes pier shaft, pier shaft and bent cap down, it is the W type to go up the pier shaft, go up pier shaft top and connect the bent cap, it connects to go up pier shaft bottom pier shaft down, pier shaft is the double column mound down.
By adopting the W-shaped pier, the upper pier body at the upper part is W-shaped, so that the support arrangement of a wide girder bridge can be better adapted, the cantilever arm is shorter, the stress is reasonable, the defect of the traditional Y-shaped single-column pier in the wide girder bridge is effectively overcome, the construction is convenient, the pier is provided with a cavity, and the material is saved; meanwhile, the lower pier body is a double-column pier, and compared with a three-column pier or large-volume pier body design adopted by a traditional wide beam bridge, the lower pier body can also achieve the effects of saving the ground under the bridge and reducing the construction cost; the W-shaped pier is simple in structure, convenient to manufacture and good in effect.
Preferably, the upper pier body comprises a middle stay bar and inclined stay bars, the middle stay bar is inverted V-shaped or inverted U-shaped, the inclined stay bars are arranged on two sides of the middle stay bar, and the bottoms of the inclined stay bars are connected with the bottom of the middle stay bar.
Preferably, the lower pier body is a hollow pier.
Preferably, the lower pier body is connected to the bearing platform.
Preferably, the capping beam is used for providing a railway main beam and/or a road main beam.
Preferably, the upper pier body and the lower pier body are integrally formed by cast-in-place reinforced concrete.
Preferably, the upper pier body is of a steel structure, and the lower pier body is of a prefabricated reinforced concrete structure or a cast-in-place reinforced concrete structure.
Preferably, the upper pier body is of a steel structure, and the lower pier body is of a steel structure.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the W-shaped bridge pier, the upper pier body at the upper part is W-shaped, the arrangement of the support of a wide girder bridge can be better adapted, the cantilever arm is shorter, the stress is reasonable, the defect of the traditional Y-shaped single-column pier in the wide girder bridge is effectively overcome, the construction is convenient, the overall attractiveness of the bridge is improved due to the hollow design of the W-shaped curved strips, the material waste caused by large-scale bridge piers is avoided, and the economic benefit is obvious; meanwhile, the lower pier body is a double-column pier, and compared with a three-column pier or large-volume pier body design adopted by a traditional wide beam bridge, the lower pier body can also achieve the effects of saving the ground under the bridge and reducing the construction cost; the W-shaped pier has the advantages of simple structure, convenient manufacture and good effect;
2. according to the W-shaped pier, the upper pier body and the lower pier body are integrally formed structures of cast-in-place reinforced concrete, or the upper pier body is of a steel structure, the lower pier body is of a prefabricated reinforced concrete structure or a cast-in-place reinforced concrete structure, or the upper pier body is of a steel structure, the lower pier body is of a steel structure and other various combination forms, the scheme is flexible to select, the efficient combination of factory processing production and field construction can be realized, the construction difficulty is reduced, the engineering quality is improved, and meanwhile, the labor cost is reduced.
Drawings
FIG. 1 is a schematic structural view of a conventional Y-shaped single-column pier wide-body bridge;
FIG. 2 is a schematic structural view of a conventional three-column pier wide body bridge;
FIG. 3 is a schematic structural diagram of a W-shaped bridge pier according to the present invention;
fig. 4 is a sectional view a-a in fig. 3.
Icon: 01-railway main beam, 02-highway main beam, 03-Y-shaped single-column pier, 04-three-column pier, 1-upper pier body, 11-middle support rod, 12-inclined support rod, 2-bent cap, 3-lower pier body and 4-cushion cap.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Examples
As shown in fig. 3-4, the total length of a certain bridge is designed to be 1742.10m, and the main bridge is a steel box cable-stayed bridge, the full-bridge hole span is arranged to be 9 × 40.0.0 m (approach bridge) + (72.5+203+522+203+42.5) m (main bridge) +8 ×. m (approach bridge): 1743.3m, wherein the main bridge cable-stayed bridge has the length 1043m and the span is arranged to be (72.5+203+522+203+42.5) m.
The full width of the bridge deck is 63.9m, four-line railway six-lane highways are arranged, main girders of the main bridge adopt steel box girders and groove type steel-concrete combination girders, wherein the standard section of the railway main girder 01 is the steel box girder, the girder width is 23.5m, the full length of the main girder 02 of the highway is the groove type steel-concrete combination girder, and the girder width is 15 m. The main bridge adopts a reinforced concrete diamond cable tower, the stay cables are arranged according to two spatial cable surfaces, and the approach bridge adopts the W-shaped pier.
As shown in fig. 3, this W type pier includes pier shaft 1, pier shaft 3 and bent cap 2 down, pier shaft 1 top is connected in the top bent cap 2, pier shaft 1 bottom is connected down pier shaft 3, pier shaft 3 is connected on cushion cap 4 down, bent cap 2 is used for setting up railway girder 01 and highway girder 02.
Go up pier shaft 1 and include middle vaulting pole 11 and diagonal brace 12, middle vaulting pole 11 is the type of falling V or the type of falling U, diagonal brace 12 is located middle vaulting pole 11 both sides, just diagonal brace 12 bottom is connected middle vaulting pole 11 bottom makes go up pier shaft 1 is the W type, middle vaulting pole 11 top sets up railway girder 01, two diagonal brace 12 top sets up two highway girder 02, through go up the pier shaft 1 outside diagonal brace 12 transmits the load of the relatively less highway girder 02, through railway girder 01 and four-wire train load in the middle of the transmission of middle vaulting pole 11.
As shown in fig. 4, the lower pier body 3 is a double-column hollow pier, and the cross section of the lower pier body is D-shaped; the upper W-shaped pier body 1 is in transition from the root to the lower column-shaped pier body 3.
The upper pier body 1 and the lower pier body 3 are integrally formed structures of cast-in-place reinforced concrete, or the upper pier body 1 is a steel structure, the lower pier body 3 is a prefabricated reinforced concrete structure or a cast-in-place reinforced concrete structure, or the upper pier body 1 is a steel structure, the lower pier body 3 is a steel structure and other various combination forms, the scheme selection is flexible, the efficient combination of factory processing production and field construction can be realized, the construction difficulty is reduced, the engineering quality is improved, and meanwhile, the labor cost is reduced.
By applying the W-shaped pier, the upper pier body 1 at the upper part is W-shaped, can better adapt to the support arrangement of a wide girder bridge, has shorter cantilever arms and reasonable stress, effectively overcomes the defect of the traditional Y-shaped single-column pier in the wide girder bridge, is convenient to construct, is provided with a cavity, and saves materials; meanwhile, the lower pier body 3 at the lower part is a double-column pier, and compared with a three-column pier or large-volume pier body design adopted by a traditional wide beam bridge, the lower pier body can also achieve the effects of saving the ground used under the bridge and reducing the construction cost; this W type pier can with the reasonable distribution of three girder load in upper portion to three vaulting pole and cross the even transmission of three vaulting pole extremely pier shaft 3 down, and then transmit extremely 4 foundations on the cushion cap make the load transfer path of entire structure clearer, and the atress is more clear and definite, has also improved the whole view effect of bridge simultaneously, its simple structure, it is convenient to make, respond well.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The utility model provides a W type pier, its characterized in that, includes pier shaft (1), pier shaft (3) and bent cap (2) down, it is the W type to go up pier shaft (1), it connects to go up pier shaft (1) top bent cap (2), it connects to go up pier shaft (1) bottom pier shaft (3) down, pier shaft (3) are the double column mound down.
2. The W-shaped pier according to claim 1, wherein the upper pier body (1) comprises a middle support rod (11) and inclined support rods (12), the middle support rod (11) is in an inverted V shape or an inverted U shape, the inclined support rods (12) are arranged on two sides of the middle support rod (11), and the bottoms of the inclined support rods (12) are connected with the bottoms of the middle support rod (11).
3. W-shaped pier according to claim 1, characterized in that the lower pier body (3) is a hollow pier.
4. W-shaped pier according to claim 1, characterized in that the lower pier body (3) is connected to a bearing platform (4).
5. W-shaped pier according to claim 1, characterized in that the capping beam (2) is used for arranging a railway girder (01) and/or a road girder (02).
6. The W-shaped pier according to any one of claims 1 to 5, wherein the upper pier body (1) and the lower pier body (3) are integrally formed structures of cast-in-place reinforced concrete.
7. The W-shaped pier according to any one of claims 1 to 5, wherein the upper pier body (1) is of a steel structure, and the lower pier body (3) is of a prefabricated reinforced concrete structure or a cast-in-place reinforced concrete structure.
8. The W-shaped pier according to any one of claims 1 to 5, wherein the upper pier body (1) is of a steel structure, and the lower pier body (3) is of a steel structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010271577.1A CN111321660A (en) | 2020-04-08 | 2020-04-08 | W-shaped bridge pier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010271577.1A CN111321660A (en) | 2020-04-08 | 2020-04-08 | W-shaped bridge pier |
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| Publication Number | Publication Date |
|---|---|
| CN111321660A true CN111321660A (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010271577.1A Pending CN111321660A (en) | 2020-04-08 | 2020-04-08 | W-shaped bridge pier |
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| CN (1) | CN111321660A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112482184A (en) * | 2020-11-18 | 2021-03-12 | 中铁大桥局集团有限公司 | Concrete bridge structure of highway and railway and doubling method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3204332A1 (en) * | 1982-02-09 | 1983-08-11 | Alan Dr.rer.nat. 6090 Rüsselsheim Kelemen | Bridge supporting structure |
| US20120153625A1 (en) * | 2010-10-26 | 2012-06-21 | Blue Energy Canada Inc. | Hydrodynamic array with mass transit tunnels |
| CN203559344U (en) * | 2013-11-11 | 2014-04-23 | 中铁第一勘察设计院集团有限公司 | Bridge pier foundation structure applicable to station bridges and hillside terrains |
| CN203700942U (en) * | 2014-01-24 | 2014-07-09 | 上海千年城市规划工程设计股份有限公司 | Triangular pier structure |
| CN109056510A (en) * | 2018-09-26 | 2018-12-21 | 中铁二院工程集团有限责任公司 | The queen post superelevation frame pier of multiple steel member connection |
| CN109458006A (en) * | 2018-12-13 | 2019-03-12 | 中铁第四勘察设计院集团有限公司 | A kind of combined highway and metro integral cast-in-situ frame-type overhead station and its construction method |
| CN212000602U (en) * | 2020-04-08 | 2020-11-24 | 中铁二院工程集团有限责任公司 | W-shaped bridge pier |
-
2020
- 2020-04-08 CN CN202010271577.1A patent/CN111321660A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3204332A1 (en) * | 1982-02-09 | 1983-08-11 | Alan Dr.rer.nat. 6090 Rüsselsheim Kelemen | Bridge supporting structure |
| US20120153625A1 (en) * | 2010-10-26 | 2012-06-21 | Blue Energy Canada Inc. | Hydrodynamic array with mass transit tunnels |
| CN203559344U (en) * | 2013-11-11 | 2014-04-23 | 中铁第一勘察设计院集团有限公司 | Bridge pier foundation structure applicable to station bridges and hillside terrains |
| CN203700942U (en) * | 2014-01-24 | 2014-07-09 | 上海千年城市规划工程设计股份有限公司 | Triangular pier structure |
| CN109056510A (en) * | 2018-09-26 | 2018-12-21 | 中铁二院工程集团有限责任公司 | The queen post superelevation frame pier of multiple steel member connection |
| CN109458006A (en) * | 2018-12-13 | 2019-03-12 | 中铁第四勘察设计院集团有限公司 | A kind of combined highway and metro integral cast-in-situ frame-type overhead station and its construction method |
| CN212000602U (en) * | 2020-04-08 | 2020-11-24 | 中铁二院工程集团有限责任公司 | W-shaped bridge pier |
Non-Patent Citations (1)
| Title |
|---|
| 周剑萍;: "圆形截面双柱式桥墩与矩形截面Y形桥墩应用分析", 公路, no. 07, 25 July 2013 (2013-07-25) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112482184A (en) * | 2020-11-18 | 2021-03-12 | 中铁大桥局集团有限公司 | Concrete bridge structure of highway and railway and doubling method |
| CN112482184B (en) * | 2020-11-18 | 2022-09-16 | 中铁大桥局集团有限公司 | Concrete bridge structure of highway and railway and doubling method |
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