CN111455819A - Support between pre-compaction steel pipe concrete rib - Google Patents
Support between pre-compaction steel pipe concrete rib Download PDFInfo
- Publication number
- CN111455819A CN111455819A CN202010273336.0A CN202010273336A CN111455819A CN 111455819 A CN111455819 A CN 111455819A CN 202010273336 A CN202010273336 A CN 202010273336A CN 111455819 A CN111455819 A CN 111455819A
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- China
- Prior art keywords
- steel
- steel pipe
- rib
- steel tube
- stressed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 78
- 239000010959 steel Substances 0.000 title claims abstract description 78
- 239000004567 concrete Substances 0.000 title claims abstract description 18
- 238000005056 compaction Methods 0.000 title claims description 7
- 239000004574 high-performance concrete Substances 0.000 claims abstract description 11
- 239000002131 composite material Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 7
- 230000002787 reinforcement Effects 0.000 abstract description 3
- 238000004873 anchoring Methods 0.000 abstract description 2
- 230000003601 intercostal effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011372 high-strength concrete Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000011374 ultra-high-performance concrete Substances 0.000 description 1
Images
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
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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
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/28—Concrete reinforced prestressed
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a support between pre-pressed steel pipe concrete ribs, and belongs to the technical field of road construction. The prestressed steel tube comprises a steel tube, wherein one side of the steel tube is connected with arch ribs, the other side of the steel tube is provided with prestressed anchoring parts, a plurality of groups of prestressed steel bars are arranged inside the steel tube at intervals, and a gap between the inner cavity of the steel tube and the outside of the prestressed steel bars is filled with high-performance concrete. The invention pours and fills high-performance concrete in the steel pipe, and uses one end of the prepressing prestressed reinforcement to be anchored in the arch rib or the inter-rib support, and the other end is anchored on the prestressed anchor part to change the stress mode of the inter-rib beam into a bending component, thereby increasing the structural rigidity, effectively solving the problem of insufficient transverse and vertical bending bearing capacity of the common inter-rib support, and having excellent application value for the structure between the ribs of the arch bridge which needs to bear the earthquake resistance and the wind resistance and needs to be provided with components such as a support, a damper or a limiting device.
Description
Technical Field
The invention relates to the technical field of road construction, in particular to a support between pre-pressed steel pipe concrete ribs.
Background
The steel tube concrete arch bridge has the advantages of stress, construction, attractive appearance, cost and the like, and is fully developed and widely applied to traffic engineering in China. The bridge deck load is transmitted to the arch ribs through the intercostal crossbeams connected with the arch ribs, and the intercostal crossbeams generally adopt the bending members to support the load of the longitudinal beams, so that the bearing capacity of the general intercostal crossbeams is lower, and local damage is easily caused.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention aims to overcome the defects of the prior art, provides a pre-pressed steel pipe concrete intercostal support, solves the problem of insufficient transverse and vertical bending resistance bearing capacity of the common intercostal support, and has excellent application value for the intercostal structure of the arch bridge, which needs to bear factors such as earthquake resistance, wind resistance, braking force of a large-span bridge vehicle, a vertical support among ribs of a large-size main beam, a wider bridge floor and the like, and needs to be provided with a support, a damper or a limiting device and the like.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the invention relates to a pre-pressed steel pipe concrete inter-rib support which comprises a steel pipe, wherein one side of the steel pipe is connected with an arch rib, the other side of the steel pipe is provided with pre-pressed anchor parts, a plurality of groups of pre-pressed prestressed steel bars are arranged in the steel pipe at intervals, a gap between the inner cavity of the steel pipe and the outer parts of the pre-pressed prestressed steel bars is filled with high-performance concrete, one end of each pre-pressed prestressed steel bar is anchored in the arch rib, and the other end of each pre-pressed prestressed steel bar is anchored on the plate surface of each.
Furthermore, a support connected with the main beam is arranged on the steel pipe.
Furthermore, a damper or a limiting device is further arranged on the steel pipe.
Furthermore, one side of the pre-stressed steel bar close to the pre-stressed anchor is sleeved with a non-viscous sleeve.
Furthermore, the cross section of each steel pipe is circular or rectangular, the adjacent steel pipes are connected through secondary connection to form a whole, and the steel pipes are welded or in pressure-bearing friction connection with the arch ribs.
Furthermore, the high-performance concrete adopts cohesive composite materials with excellent mechanical property or durability.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
the invention fills high-performance concrete in the steel pipe, and uses pre-pressed prestressed reinforcement with one end anchored in the arch rib or the inter-rib support and the other end anchored on the prestressed anchor to change the stressed mode of the inter-rib beam into a bending component, thereby increasing the structural rigidity. The method has no special requirements on construction, simple and convenient process, extremely low cost and convenient construction and installation standardization, and has excellent application value on the structure among the ribs of the arch bridge needing to bear factors such as earthquake resistance, wind resistance, braking force of a large-span bridge vehicle, vertical support among the ribs of a large-size main beam, wider bridge floor and the like and needing to be provided with a support, a damper or a limiting device and the like.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a diagram showing the actual effect of the present invention.
In the figure: 1. a steel pipe; 2. high performance concrete; 3. pre-pressing prestressed reinforcement; 4. a pre-stressed anchor; 5. a non-sticking sleeve; 6. and (4) arch ribs.
Detailed Description
The invention is further described with reference to the following figures and examples:
example 1
It can be seen from fig. 1-2, support between pre-stressed steel pipe concrete rib of this embodiment, including steel pipe 1, one side of steel pipe 1 is connected with arch rib 6, the opposite side of steel pipe 1 is provided with prestressed anchorage spare 4, the inside interval of steel pipe 1 is provided with multiunit pre-stressed steel bar 3, the clearance department between 1 inner chamber of steel pipe and pre-stressed steel bar 3 outside is filled with high performance concrete 2, the one end of pre-stressed steel bar 3 is inside in arch rib 6, the other end anchor of pre-stressed steel bar 3 is on prestressed anchorage spare 4's face, one side cover that pre-stressed steel bar 3 is close to prestressed anchorage spare 4 is equipped with no viscous casing 5.
The steel pipe 1 is provided with a support connected with the main beam, specifically shown as a in fig. 2, and the steel pipe 1 is also provided with a damper or a limiting device, specifically shown as B in fig. 2.
The cross section of each steel pipe 1 is circular or rectangular, and can also be in other shapes, the adjacent steel pipes 1 are connected for the second time to form a whole, the steel pipes 1 are arranged below the intersection area of the arch rib 6 and the vertical surface of the main beam, and the steel pipes 1 are welded or in pressure-bearing friction connection with the arch rib 6.
The high-performance concrete 2 is made of cohesive composite materials with excellent mechanical properties or durability, and comprises the categories of shrinkage-compensating concrete, fiber concrete, high-strength concrete and ultrahigh-performance concrete.
The pre-stressed steel bars 3 are arranged in the inner cavity of the steel pipe 1 at equal intervals, and include but not limited to pre-stressed steel bundles, pre-stressed cold-rolled steel bars, pre-stressed bolts and other structures capable of exerting pre-stress, the pre-stressed anchor members 4 include but not limited to steel or concrete and other structures capable of providing anchoring, and steel-concrete shearing force member structures can be arranged in the inter-rib supporting structures according to requirements.
According to the invention, high-performance concrete 2 is poured and filled in the steel pipe 1, one end of the pre-stressed steel bar 3 is anchored in the arch rib 6 or the inter-rib support, and the other end of the pre-stressed steel bar is anchored on the pre-stressed anchor part 4, so that the stress mode of the inter-rib beam is converted into a bending component, and the structural rigidity is enhanced.
The invention is used as the intercostal support of the arch bridge, solves the problem that the transverse and vertical bending resistance bearing capacity of the common intercostal support is insufficient, and the prepressing component properly applies the prepressing to change the stress state of the structure into a bending component, so that the stress of the structure is more reasonable. The method has no special requirements on construction, simple and convenient process, extremely low cost and convenient construction and installation standardization, and has excellent application value on the structure among the ribs of the arch bridge needing to bear factors such as earthquake resistance, wind resistance, braking force of a large-span bridge vehicle, vertical support among the ribs of a large-size main beam, wider bridge floor and the like and needing to be provided with a support, a damper or a limiting device and the like.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (6)
1. The utility model provides a support between pre-compaction steel pipe concrete rib, includes steel pipe (1), its characterized in that: one side of steel pipe (1) be connected with arch rib (6), the opposite side of steel pipe (1) is provided with prestressed anchorage spare (4), the inside interval of steel pipe (1) is provided with multiunit pre-compaction prestressing steel (3), steel pipe (1) inner chamber and pre-compaction prestressing steel (3) outside between clearance department fill have high performance concrete (2), the one end anchor of pre-compaction prestressing steel (3) is inside arch rib (6), the other end anchor of pre-compaction prestressing steel (3) is on the face of prestressed anchorage spare (4).
2. The pre-stressed steel tube concrete inter-rib support according to claim 1, wherein: the steel pipe (1) is provided with a support connected with the main beam.
3. The pre-stressed steel tube concrete inter-rib support according to claim 2, wherein: the steel pipe (1) is also provided with a damper or a limiting device.
4. The pre-stressed steel tube concrete inter-rib support according to claim 1, wherein: and a non-viscous sleeve (5) is sleeved on one side of the pre-stressed steel bar (3) close to the pre-stressed anchor (4).
5. The pre-stressed steel tube concrete inter-rib support according to claim 1, wherein: the cross section of each steel pipe (1) is circular or rectangular, the adjacent steel pipes (1) are connected with each other for the second time to form a whole, and the steel pipes (1) are welded or in pressure-bearing friction connection with the arch ribs (6).
6. The pre-stressed steel tube concrete inter-rib support according to claim 1, wherein: the high-performance concrete (2) is made of cohesive composite materials with excellent mechanical property or durability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010273336.0A CN111455819B (en) | 2020-04-09 | 2020-04-09 | Support between pre-compaction steel pipe concrete rib |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010273336.0A CN111455819B (en) | 2020-04-09 | 2020-04-09 | Support between pre-compaction steel pipe concrete rib |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111455819A true CN111455819A (en) | 2020-07-28 |
| CN111455819B CN111455819B (en) | 2024-06-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010273336.0A Active CN111455819B (en) | 2020-04-09 | 2020-04-09 | Support between pre-compaction steel pipe concrete rib |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111455819B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114438870A (en) * | 2022-03-07 | 2022-05-06 | 重庆交通大学 | Deck type concrete filled steel tube arch bridge with main arch ring provided with damping device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201459588U (en) * | 2009-06-22 | 2010-05-12 | 中铁二院工程集团有限责任公司 | Midheight combined-structure arch bridge |
| KR20150126502A (en) * | 2014-05-02 | 2015-11-12 | 최하정 | Structure And Construction Method of Steel Arch Bridge |
| CN207133129U (en) * | 2017-06-22 | 2018-03-23 | 北京华横新技术开发公司 | A kind of bridge static loading test pre-stressed steel pipe concrete self-balancing type static test bed |
| CN212452246U (en) * | 2020-04-09 | 2021-02-02 | 中国十七冶集团有限公司 | Support between pre-compaction steel pipe concrete rib |
-
2020
- 2020-04-09 CN CN202010273336.0A patent/CN111455819B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201459588U (en) * | 2009-06-22 | 2010-05-12 | 中铁二院工程集团有限责任公司 | Midheight combined-structure arch bridge |
| KR20150126502A (en) * | 2014-05-02 | 2015-11-12 | 최하정 | Structure And Construction Method of Steel Arch Bridge |
| CN207133129U (en) * | 2017-06-22 | 2018-03-23 | 北京华横新技术开发公司 | A kind of bridge static loading test pre-stressed steel pipe concrete self-balancing type static test bed |
| CN212452246U (en) * | 2020-04-09 | 2021-02-02 | 中国十七冶集团有限公司 | Support between pre-compaction steel pipe concrete rib |
Non-Patent Citations (2)
| Title |
|---|
| 刘小军;: "多肋钢管混凝土梁拱组合桥的设计与稳定性分析", 山西交通科技, no. 05, 15 October 2011 (2011-10-15) * |
| 王斌;: "中承式拱桥系杆创新设计", 公路交通科技(应用技术版), no. 07, 15 July 2018 (2018-07-15), pages 52 - 55 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114438870A (en) * | 2022-03-07 | 2022-05-06 | 重庆交通大学 | Deck type concrete filled steel tube arch bridge with main arch ring provided with damping device |
| CN114438870B (en) * | 2022-03-07 | 2024-06-07 | 重庆交通大学 | Upper bearing type steel pipe concrete arch bridge with damping device on main arch ring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111455819B (en) | 2024-06-21 |
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