CN102720125A - Concrete filled steel tube pier having steel tubes with holes - Google Patents
Concrete filled steel tube pier having steel tubes with holes Download PDFInfo
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- CN102720125A CN102720125A CN201210212841XA CN201210212841A CN102720125A CN 102720125 A CN102720125 A CN 102720125A CN 201210212841X A CN201210212841X A CN 201210212841XA CN 201210212841 A CN201210212841 A CN 201210212841A CN 102720125 A CN102720125 A CN 102720125A
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Abstract
The invention discloses a concrete filled steel tube pier having steel tubes with holes. The pier comprises steel tubes, concrete cores, a plurality of steel bars and protective layers, wherein a plurality of holes are formed on circumferential surfaces of the steel tubes, the concrete cores are located inside the steel tubes, the plurality of steel bars penetrate through two opposite holes of each of the steel bars, the middle portions of the steel bars are located inside the concrete cores, two ends of the steel bars extend out of the steel tubes, and the protective layers are arranged outside the steel tubes and cover the end portions of the steel bars. According to the concrete filled steel tube pier, relative sliding between the steel bars and the concrete can be prevented effectively, so that the working performance of the concrete filled steel tube pier can be guaranteed on the premise that the bearing force of the pier is not reduced. Besides, cement plaster flows out of the holes can serve as protective layers and can be coated on the surfaces of steel tubes, the corrosion of the steel tubes can be prevented, and the service life of the pier is prolonged. The steel bars extend out of the steel tubes, so that the protective layers can be prevented from peeling off and the service life of the pier is prolonged.
Description
Technical field
The invention belongs to the bridge technology field, particularly relate to the concrete pier of steel tube that has eyelet on a kind of steel pipe.
Background technology
Concrete filled steel tubular member is a filling concrete and forming in steel pipe.This member can remedy the deficiency of two kinds of materials through steel pipe and the interaction of concrete core in stressed; Give full play to advantage separately; Thereby have plurality of advantages such as bearing capacity height, plasticity and good toughness, therefore in bridge and civilian construction, obtained application more and more widely.
Bonding between steel pipe and the concrete is a kind of complicated interaction the between the two, and through the transmission and the compatible deformation of two kinds of material interface active forces of this interaction realization, this is steel pipe and the cooperative together prerequisite of two kinds of combinations of materials of concrete.Adhesive property all has very big influence for deformation of members and bearing capacity, if relative slippage takes place between steel pipe and the concrete, will influence the deformability and the bearing capacity of concrete filled steel tubular member.And present engineering circle does not also have can effectively prevent to take place between steel pipe and the concrete method of relative slippage.Therefore between steel pipe and the concrete relatively the research of slippage problem just become one of problem that current engineering circle comparatively is concerned about.
In addition, if steel pipe directly is exposed in the air, it is easy to corroded; Therefore, if concrete filled steel tubular member is used as bridge pier, its bearing capacity is reduced; If increase certain thickness concrete cover in steel tube surface; Since between topping and the steel pipe to be connected power poor, therefore this topping is easy to separate with steel pipe under the long term of external force, the result causes topping to peel off.In addition, because the existence of steel pipe is not easy to make the bubble in the concrete core to emerge, causes the concrete core leakiness, thereby seriously influence concrete compressive strength, the result has reduced the actual carrying capacity of reinforced concrete bridge pier.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide and a kind ofly can effectively prevent the relative slippage between concrete filled steel tubular member steel pipe and the concrete, prevent that concrete cover from peeling off, saving material, reduce operating expenses, guaranteeing to have on the steel pipe of bridge pier and bed rearrangement bridge quality the concrete pier of steel tube of eyelet.
In order to achieve the above object, the concrete pier of steel tube that has eyelet on the steel pipe provided by the invention comprises steel pipe, concrete core, many reinforcing bars and topping; Wherein be formed with a plurality of eyelets on the periphery of steel pipe; Concrete core is positioned at the inside of steel pipe; Many reinforcing bars run through two relative on steel pipe eyelets, and the middle part is arranged in concrete core, and the outside of steel pipe is stretched out at two ends; Topping is arranged on the outside of steel pipe, and covers the outer end of reinforcing bar.
The perforation density of two-end part is greater than the perforation density at middle part on the described steel pipe.
Described many reinforcing bars are crisscross arranged in concrete core.
The concrete pier of steel tube that has eyelet on the steel pipe provided by the invention is a plurality of eyelets that on steel pipe, form a certain size and density; In eyelet, insert many middle parts simultaneously and be arranged in concrete core; Two ends are positioned at the outside reinforcing bar of steel pipe; Because the existence of circular hole and reinforcing bar can effectively prevent the relative slippage between steel pipe and the concrete, therefore can under the prerequisite that does not weaken the bridge pier bearing capacity, guarantee the service behaviour of concrete pier of steel tube.In addition, the cement mortar that from eyelet, flows out can be used as the surface that topping is applied in steel pipe, can prevent that steel pipe from being corroded, thereby prolong the application life of bridge pier.In addition, because reinforcing bar stretches out the outside at steel pipe, therefore can effectively prevent peeling off of topping; Prolong the application life of bridge pier; In addition, the bubble in the concrete core can come out through eyelet all around, has increased the compactness of concrete core thus; Thereby strengthened concrete compressive strength, increased the actual carrying capacity of concrete pier of steel tube.This method is easy to realize, and cost is lower, can be applied in the construction control operation of similar concrete filled steel tubular member.
Description of drawings
Fig. 1 is steel pipe side schematic view on the concrete pier of steel tube that has eyelet on the steel pipe provided by the invention.
Fig. 2 is for having the concrete pier of steel tube cross sectional representation of eyelet on the steel pipe provided by the invention.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the concrete pier of steel tube that has eyelet on the steel pipe provided by the invention is elaborated.
Like Fig. 1, shown in Figure 2, the concrete pier of steel tube that has eyelet on the steel pipe provided by the invention comprises steel pipe 1, concrete core 3, many reinforcing bars 5 and topping 4; Wherein be formed with a plurality of eyelets 2 on the periphery of steel pipe 1; Concrete core 3 is positioned at the inside of steel pipe 1; Many reinforcing bars 5 run through two relative on the steel pipe 1 eyelets 2, and the middle part is arranged in concrete core 3, and the outside of steel pipe 1 is stretched out at two ends; Topping 4 is arranged on the outside of steel pipe 1, and covers the outer end of reinforcing bar 5.
Described many reinforcing bars 5 are crisscross arranged in concrete core 3.
Existing the concrete pier of steel tube manufacturing process that has eyelet on the steel pipe provided by the invention is set forth as follows: at first with many reinforcing bars 5 level or oblique passing two corresponding eyelets 2 from steel pipe 1 respectively; And the outside of steel pipe 1 is stretched out at the two ends that make reinforcing bar 5; The concrete perfusion in the inside of steel pipe 1 then; Treat to form concrete core 3 after the concrete setting; Utilize the concrete for making layer protective layer 4 that leaks out from above-mentioned eyelet 2 edges in the outside of steel pipe 1 afterwards, should guarantee that the two ends of reinforcing bar 5 are positioned at topping 4 inside, promptly can be made into the concrete pier of steel tube that has eyelet on the described steel pipe thus.
Claims (3)
1. have the concrete pier of steel tube of eyelet on the steel pipe, it is characterized in that: the concrete pier of steel tube that has eyelet on the described steel pipe comprises steel pipe (1), concrete core (3), many reinforcing bars (5) and topping (4); Wherein be formed with a plurality of eyelets (2) on the periphery of steel pipe (1); Concrete core (3) is positioned at the inside of steel pipe (1); Many reinforcing bars (5) run through steel pipe (1) and go up relative two eyelets (2), and the middle part is arranged in concrete core (3), and the outside of steel pipe (1) is stretched out at two ends; Topping (4) is arranged on the outside of steel pipe (1), and covers the outer end of reinforcing bar (5).
2. have the concrete pier of steel tube of eyelet on the steel pipe according to claim 1, it is characterized in that: described steel pipe (1) is gone up eyelet (2) density of eyelet (2) density of two-end part greater than the middle part.
3. have the concrete pier of steel tube of eyelet on the steel pipe according to claim 1, it is characterized in that: described many reinforcing bars (5) are crisscross arranged in concrete core (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210212841XA CN102720125A (en) | 2012-06-26 | 2012-06-26 | Concrete filled steel tube pier having steel tubes with holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210212841XA CN102720125A (en) | 2012-06-26 | 2012-06-26 | Concrete filled steel tube pier having steel tubes with holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102720125A true CN102720125A (en) | 2012-10-10 |
Family
ID=46945980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210212841XA Pending CN102720125A (en) | 2012-06-26 | 2012-06-26 | Concrete filled steel tube pier having steel tubes with holes |
Country Status (1)
| Country | Link |
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| CN (1) | CN102720125A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735100A (en) * | 2016-04-20 | 2016-07-06 | 四川省交通运输厅公路规划勘察设计研究院 | Full-steel-pipe concrete composite bridge |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60246927A (en) * | 1984-05-17 | 1985-12-06 | Sumitomo Metal Ind Ltd | Joint between pile head part and concrete member |
| JPH09291589A (en) * | 1996-04-26 | 1997-11-11 | Shimizu Corp | Joining structure of filled steel pipe concrete column and beam |
| US20050050837A1 (en) * | 2003-09-08 | 2005-03-10 | Jiaduo Wang | Meshed (porous) steel pipe/tube used as concrete reinforcement |
| KR100570231B1 (en) * | 2005-07-09 | 2006-04-11 | 우경건설 주식회사 | Structure section extension equipment and an extension method of construction using ps steel materials and a steel plate |
| CN2934432Y (en) * | 2006-08-04 | 2007-08-15 | 王加多 | Reinforced frame for concrete structure |
| CN201865041U (en) * | 2010-11-22 | 2011-06-15 | 天津城市建设学院 | Concrete filled steel tube pier preventing protective layer from being stripped |
| CN201883701U (en) * | 2010-09-13 | 2011-06-29 | 武汉大学 | Coated concrete-filled steel tubular concrete column reinforcement structure |
| CN102373804A (en) * | 2011-11-15 | 2012-03-14 | 天津大学 | Novel precast concrete pipe column structure and construction method thereof |
| CN102493601A (en) * | 2011-11-29 | 2012-06-13 | 河海大学 | Hole-type steel tube concrete pier stud |
-
2012
- 2012-06-26 CN CN201210212841XA patent/CN102720125A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60246927A (en) * | 1984-05-17 | 1985-12-06 | Sumitomo Metal Ind Ltd | Joint between pile head part and concrete member |
| JPH09291589A (en) * | 1996-04-26 | 1997-11-11 | Shimizu Corp | Joining structure of filled steel pipe concrete column and beam |
| US20050050837A1 (en) * | 2003-09-08 | 2005-03-10 | Jiaduo Wang | Meshed (porous) steel pipe/tube used as concrete reinforcement |
| KR100570231B1 (en) * | 2005-07-09 | 2006-04-11 | 우경건설 주식회사 | Structure section extension equipment and an extension method of construction using ps steel materials and a steel plate |
| CN2934432Y (en) * | 2006-08-04 | 2007-08-15 | 王加多 | Reinforced frame for concrete structure |
| CN201883701U (en) * | 2010-09-13 | 2011-06-29 | 武汉大学 | Coated concrete-filled steel tubular concrete column reinforcement structure |
| CN201865041U (en) * | 2010-11-22 | 2011-06-15 | 天津城市建设学院 | Concrete filled steel tube pier preventing protective layer from being stripped |
| CN102373804A (en) * | 2011-11-15 | 2012-03-14 | 天津大学 | Novel precast concrete pipe column structure and construction method thereof |
| CN102493601A (en) * | 2011-11-29 | 2012-06-13 | 河海大学 | Hole-type steel tube concrete pier stud |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735100A (en) * | 2016-04-20 | 2016-07-06 | 四川省交通运输厅公路规划勘察设计研究院 | Full-steel-pipe concrete composite bridge |
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Application publication date: 20121010 |