CN202705882U - Concrete-filled steel tube arch bridge arch rib capable of avoiding uncompacted pouring of concrete at top - Google Patents
Concrete-filled steel tube arch bridge arch rib capable of avoiding uncompacted pouring of concrete at top Download PDFInfo
- Publication number
- CN202705882U CN202705882U CN 201220396268 CN201220396268U CN202705882U CN 202705882 U CN202705882 U CN 202705882U CN 201220396268 CN201220396268 CN 201220396268 CN 201220396268 U CN201220396268 U CN 201220396268U CN 202705882 U CN202705882 U CN 202705882U
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- concrete
- steel tube
- grouting pipe
- arch bridge
- steel pipe
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Abstract
A concrete-filled steel tube arch bridge arch rib capable of avoiding uncompacted pouring of concrete at the top comprises a steel tube, a concrete core, a plurality of shear keys, a grouting pipe and a one-way throttle valve. The plurality of shear keys are arranged on the inner surface of the top portion of the steel tube along the direction of the arc length of the steel tube. The grouting pipe is fixed on the plurality of shear keys. The outer end of the grouting pipe is placed on the outer side of one end of the steel tube, and the inner end of the grouting pipe is placed on the middle portion of the top end of the arch rib. The one-way throttle valve is arranged at the inner end of the grouting pipe. The concrete core is formed by setting of the concrete which is poured into the steel tube. According to the concrete-filled steel tube arch bridge arch rib capable of avoiding uncompacted pouring of the concrete at the top, the plurality of shear keys are arranged on the inner surface of the top end of the steel tube are used, and meanwhile the grouting pipe is arranged on the plurality of shear keys, the method that the grouting pipe is used to inject cement paste into the steel tube is used for filling of a gap which is formed on the middle portion of the top end of the arch rib when the concrete is poured, and accordingly the steel tube and the concrete can be combined well and stressed together, and therefore the mechanical property of the concrete-filled steel tube arch bridge arch rib is improved, and the potential safety hazards of an arch rib part of a concrete-filled steel tube arch bridge are removed.
Description
Technical field
The utility model belongs to the bridge construction technical field, particularly relates to a kind of top concrete that can prevent and builds uncompacted Filled Steel Tubular Arch Bridge.
Background technology
Because concrete filled steel tube has steel and the outstanding mechanical property of concrete simultaneously, therefore be applied in the construction work more and more as a kind of outstanding composite material.Wherein be widely used in recent years with the arch bridge of concrete filled steel tube as main force structure one arch rib.This Filled Steel Tubular Arch Bridge is made of with the concrete core that is cast in steel duct the steel pipe of curved setting usually.But, there is following point in this Filled Steel Tubular Arch Bridge commonly used: be subjected to the restriction of the existing technique of concreting, so that the Filled Steel Tubular Arch Bridge top middle portion is easy to occur the uncompacted problem of concreting, thereby make steel pipe and the fully combination of concrete at this position, the result greatly reduces the mechanical property of arch rib tip section, has caused very large hidden danger also for the safety of such bridge.
Summary of the invention
In order to address the above problem, the purpose of this utility model is to provide a kind of top concrete that can prevent to build uncompacted Filled Steel Tubular Arch Bridge.
In order to achieve the above object, the top concrete that can prevent that the utility model provides is built uncompacted Filled Steel Tubular Arch Bridge and is comprised steel pipe, concrete core, a plurality of shear connector, Grouting Pipe and one-way throttle valve; The wherein curved setting of steel pipe; A plurality of shear connectors are installed on the top inner surface of steel pipe along the arc length direction standoff distance of steel pipe; Grouting Pipe is also curved, is fixed on a plurality of shear connectors, and its outer end is positioned at the steel pipe one end outside, and the inner is positioned at the arch rib top middle portion; One-way throttle valve is installed on Grouting Pipe the inner; Concrete core is then by forming after the concrete setting that is cast in steel duct.
Described shear connector is steel design, is nail shape, and a plurality of shear connectors arrange in steel pipe top inner surface equal intervals, and head is positioned at downside, and the spacing between the adjacent shear connector is 1-2.5m.
The diameter of described Grouting Pipe is 2-5cm.
What the utility model provided can prevent that top concrete from building uncompacted Filled Steel Tubular Arch Bridge is to utilize at steel pipe top inner surface a plurality of shear connectors to be set, simultaneously at a plurality of shear connectors Grouting Pipe is installed, when utilizing Grouting Pipe the method for injected water mud being filled concreting in the concrete of steel duct in space that the arch rib top middle portion forms, thereby steel pipe and concrete are combined better, jointly stressed, thereby greatly improved the mechanical property of Filled Steel Tubular Arch Bridge, eliminated the potential safety hazard of such bridge arch rib part.
Description of drawings
Fig. 1 builds uncompacted Filled Steel Tubular Arch Bridge structure longitudinal sectional view for the top concrete that can prevent that the utility model provides.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the top concrete that can prevent that the utility model provides is built uncompacted Filled Steel Tubular Arch Bridge and is elaborated.
As shown in Figure 1, the top concrete that can prevent that the utility model provides is built uncompacted Filled Steel Tubular Arch Bridge and is comprised steel pipe 1, concrete core 2, a plurality of shear connector 3, Grouting Pipe 4 and one-way throttle valve 5; Wherein steel pipe 1 curved setting; A plurality of shear connectors 3 are installed on the top inner surface of steel pipe 1 along the arc length direction standoff distance of steel pipe 1; Grouting Pipe 4 is also curved, is fixed on a plurality of shear connectors 3, and its outer end is positioned at the steel pipe 1 one ends outside, and the inner is positioned at the arch rib top middle portion; One-way throttle valve 5 is installed on Grouting Pipe 4 the inners; Concrete core 2 is then by forming after the concrete setting that is cast in steel pipe 1 inside.
Described shear connector 3 is steel design, is nail shape, and a plurality of shear connectors 3 arrange in steel pipe 1 top inner surface equal intervals, and head is positioned at downside, and the spacing between the adjacent shear connector 3 is 1-2.5m.Its effect one is for Grouting Pipe 4, two is installed, for the power that mutually combines of strengthening between steel pipe 1 and the concrete core 2.
The diameter of described Grouting Pipe 4 is 2-5cm.
The top concrete that can prevent that now the utility model is provided is built uncompacted Filled Steel Tubular Arch Bridge installation process and is described below: at first weld a plurality of shear connectors 3 corresponding to the position on top by above-mentioned requirements on for the steel plate that rolls steel pipe 1, then at an end of Grouting Pipe 4 one-way throttle valve 5 is installed, and outside polybag and the rubber belt sealing used in advance of one-way throttle valve 5 is good, it is stopped up when preventing concreting, afterwards Grouting Pipe 4 is welded on a plurality of shear connectors 3 by above-mentioned requirements, then steel plate is rolled and is welded into steel pipe 1, afterwards in steel pipe 1 inside according to the conventional method concreting, after concreting is complete, after concrete initial set, utilize before the final set pressure apparatus from the outer end of Grouting Pipe 4 to its inner injected water mud, under the pressure-acting of cement paste, the above-mentioned polybag that wraps in one-way throttle valve 5 outsides will be broken through, at this moment cement paste will outwards spray from the one-way throttle valve 5 that is installed on Grouting Pipe 4 the inners, and enter in the steel pipe 1 of arch rib top middle portion and the space between the concrete, thus the space is filled up, the two is combined closely, form concrete core 2 after the last concrete setting.In addition, the purpose that one-way throttle valve 5 is set is to prevent that cement paste from refluxing.
Claims (3)
1. one kind can prevent that top concrete from building uncompacted Filled Steel Tubular Arch Bridge, and it is characterized in that: described Filled Steel Tubular Arch Bridge comprises steel pipe (1), concrete core (2), a plurality of shear connector (3), Grouting Pipe (4) and one-way throttle valve (5); The wherein curved setting of steel pipe (1); A plurality of shear connectors (3) are installed on the top inner surface of steel pipe (1) along the arc length direction standoff distance of steel pipe (1); Grouting Pipe (4) is also curved, is fixed on a plurality of shear connectors (3), and its outer end is positioned at steel pipe (1) the one end outside, and the inner is positioned at the arch rib top middle portion; One-way throttle valve (5) is installed on Grouting Pipe (4) the inner; Concrete core (2) then forms after being cast in the inner concrete setting of steel pipe (1).
2. Filled Steel Tubular Arch Bridge according to claim 1, it is characterized in that: described shear connector (3) is steel design, be nail shape, a plurality of shear connectors (3) arrange in steel pipe (1) top inner surface equal intervals, and head is positioned at downside, and the spacing between the adjacent shear connector (3) is 1-2.5m.
3. Filled Steel Tubular Arch Bridge according to claim 1, it is characterized in that: the diameter of described Grouting Pipe (4) is 2-5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220396268 CN202705882U (en) | 2012-08-10 | 2012-08-10 | Concrete-filled steel tube arch bridge arch rib capable of avoiding uncompacted pouring of concrete at top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220396268 CN202705882U (en) | 2012-08-10 | 2012-08-10 | Concrete-filled steel tube arch bridge arch rib capable of avoiding uncompacted pouring of concrete at top |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202705882U true CN202705882U (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220396268 Expired - Fee Related CN202705882U (en) | 2012-08-10 | 2012-08-10 | Concrete-filled steel tube arch bridge arch rib capable of avoiding uncompacted pouring of concrete at top |
Country Status (1)
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| CN (1) | CN202705882U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485805A (en) * | 2013-09-06 | 2014-01-01 | 中国矿业大学(北京) | Structure of steel-bar concrete rack section, grouting port and air exhausting hole |
| CN104153295A (en) * | 2014-07-21 | 2014-11-19 | 广东省基础工程公司 | Self-compacting concrete jack-up pouring construction method for steel tube arch bridges |
| CN104389271A (en) * | 2014-12-01 | 2015-03-04 | 中铁山桥集团有限公司 | Stiff support for mounting arch feet of concrete-filled steel tube arch rib bridge |
| CN110700114A (en) * | 2019-11-19 | 2020-01-17 | 中建交通建设集团有限公司 | Lower bearing platform structure of spherical surface flat hinge of large swivel bridge and construction method thereof |
| CN111088793A (en) * | 2020-01-02 | 2020-05-01 | 万明明 | Equipment for eliminating continuous wall gap by utilizing self weight of concrete |
| CN113502922A (en) * | 2021-07-19 | 2021-10-15 | 郑州大学 | Anti-debonding forming method for steel pipe concrete arch rib |
| CN114278369A (en) * | 2020-09-27 | 2022-04-05 | 山东科技大学 | End-wall branch roadway coal mining paste-like unmanned filling reinforcement method |
-
2012
- 2012-08-10 CN CN 201220396268 patent/CN202705882U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485805A (en) * | 2013-09-06 | 2014-01-01 | 中国矿业大学(北京) | Structure of steel-bar concrete rack section, grouting port and air exhausting hole |
| CN103485805B (en) * | 2013-09-06 | 2016-04-13 | 中国矿业大学(北京) | Steel pipe concrete bracket section and grouting port and vent structure |
| CN104153295A (en) * | 2014-07-21 | 2014-11-19 | 广东省基础工程公司 | Self-compacting concrete jack-up pouring construction method for steel tube arch bridges |
| CN104389271A (en) * | 2014-12-01 | 2015-03-04 | 中铁山桥集团有限公司 | Stiff support for mounting arch feet of concrete-filled steel tube arch rib bridge |
| CN104389271B (en) * | 2014-12-01 | 2016-05-11 | 中铁山桥集团有限公司 | A kind of steel pipe concrete arch rib bridge arch pin is installed and is used stiffness support |
| CN110700114A (en) * | 2019-11-19 | 2020-01-17 | 中建交通建设集团有限公司 | Lower bearing platform structure of spherical surface flat hinge of large swivel bridge and construction method thereof |
| CN110700114B (en) * | 2019-11-19 | 2021-02-02 | 中建交通建设集团有限公司 | Construction method of lower bearing platform structure of spherical flat hinge of large swivel bridge |
| CN111088793A (en) * | 2020-01-02 | 2020-05-01 | 万明明 | Equipment for eliminating continuous wall gap by utilizing self weight of concrete |
| CN111088793B (en) * | 2020-01-02 | 2021-08-20 | 广东省源天工程有限公司 | Equipment for eliminating continuous wall gap by utilizing self weight of concrete |
| CN114278369A (en) * | 2020-09-27 | 2022-04-05 | 山东科技大学 | End-wall branch roadway coal mining paste-like unmanned filling reinforcement method |
| CN114278369B (en) * | 2020-09-27 | 2023-12-08 | 山东科技大学 | Unmanned filling and reinforcing method for coal mining paste-like body of end slope roadway |
| CN113502922A (en) * | 2021-07-19 | 2021-10-15 | 郑州大学 | Anti-debonding forming method for steel pipe concrete arch rib |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20200810 |
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| CF01 | Termination of patent right due to non-payment of annual fee |