CN205171832U - Take stiffening rib steel core concrete column - Google Patents
Take stiffening rib steel core concrete column Download PDFInfo
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- CN205171832U CN205171832U CN201520806442.5U CN201520806442U CN205171832U CN 205171832 U CN205171832 U CN 205171832U CN 201520806442 U CN201520806442 U CN 201520806442U CN 205171832 U CN205171832 U CN 205171832U
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- stiffening rib
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Abstract
The utility model discloses a take stiffening rib steel core concrete column, include the steel pipe body and establish the inside concrete of steel pipe body, be fixed with vertical rib of straightening on the steel pipe body inner wall, vertical two bottom surfaces of straightening the rib are fixed with respectively stretches out opposite direction and the crisscross stiffening rib that sets up, the cross -section of stiffening rib is triangle -shaped, just the hypotenuse of stiffening rib is the cockscomb structure. Compared with the prior art, the utility model discloses can increase steel pipe and concrete interfacial adhesion power, show the ultimate bearing capacity, deformability and the ductility that improve the component, prevent effectively that steel pipe and concrete interface from coming to nothing to effectively improve the steel pipe to core concrete constraining effect.
Description
Technical field
The utility model relates to concrete construction technical field, is specifically related to a kind of band stiffening rib steel core concrete column
.
Background technology
Encased structures is from being born existing more than 130 year so far, steel pipe tube wall flakiness ratio is easy flexing time larger, and concrete mode of failure belongs to brittle fracture, steel pipe and the combination both concrete, not only increase the anti-flexion capabilities of steel pipe, also make concrete mode of failure become plasticity from fragility.Encased structures primary operating characteristics determines it and has good compressive property, is suitable as the component based on pressurized.In bridge engineering, encased structures is widely used as the chord member, web member etc. of the arch rib of arch bridge, spandrel column and truss bridge.Encased structures also encounters some problems in the development and application process of bridge engineering, as the impact by concrete shrinkage and creep, Sunshine Temperature Difference Effect etc., concrete filled steel tube interfacial adhesion is easily overcome and unsticking, steel-mixed interface occurs that shearing slip even comes to nothing, and the steel tube concrete core concrete section rate of coming to nothing is when being greater than 2%, the ultimate bearing capacity reduction of component reaches more than 20%, and the confined pressure effect weakening of steel pipe to core concrete was even lost efficacy.In addition, when concrete filled steel tube is used for bridge tower or the bridge pier of combined system bridge, the size of outer steel pipe is relatively large, concrete supporting role is only relied on to be not enough to delay steel pipe partial flexing, must take measures to increase the Critical Buckling stress of steel pipe, the thickness that must increase steel pipe or the longitudinal stiffener arranging some are to improve the Critical Buckling stress of steel pipe.The confined effect existed for rectangular steel tube with concrete infilled is not significantly and the sectional dimension comparatively easy cripling problem of big steel pipe tube wall, lot of domestic and foreign expert, scholar propose multiple measure of putting more energy into, as arranged straight rib, diagonal rib, binding bar, pull-tab, angle brace, reinforcing bar stiffening rib, reinforcing cage, select nail and indulge rib, reinforcing bar stiffening rib etc. in tube wall arranged outside inside tube wall.Many experimental results shows: measure of putting more energy into above improves the stress performance of concrete-filled rectangular steel tube to a certain extent, but still there is deficiency in various degree.Significantly, component end of mostly occurring is destroyed in the concrete-filled rectangular steel tube end effect impact of She Gang Zhu stiffening rib; If the concrete filled steel tube of pull-tab, welding difficulty is large, and weldquality is difficult to ensure, causes initial defect of specimen relatively large; The concrete filled steel tube binding bar cost of belt restraining pull bar is high, and a large amount of perforate of steel pipe, bolt be overhanging to be repugnant to the eye, the easy running pulp of concreting, construction are complicated.
Utility model content
For addressing the aforementioned drawbacks, the purpose of this utility model is to provide a kind of band stiffening rib steel core concrete column, welding difficulty is little, construction relative ease, significantly improve steel pipe and concrete interface adhesion stress, effectively prevent steel pipe and concrete interface from coming to nothing, and effectively improve steel pipe to core concrete effect of contraction.
For achieving the above object, the technical scheme that the utility model is taked is: a kind of band stiffening rib steel core concrete column, comprise steel pipe body and the concrete being located at described steel pipe body interior, described steel pipe inner body wall is fixed with longitudinally straight rib, two bottom surfaces of the straight rib of described longitudinal direction are fixed with respectively stretches out the contrary and stiffening rib be crisscross arranged in direction, the cross section of described stiffening rib is triangular in shape, and the hypotenuse indentation of described stiffening rib.
Preferably, the cross section of described steel pipe body is closed circle, square, rectangle, ellipse or polygon.
The rib number of described stiffening rib is single rib or many ribs, and on described stiffening rib, the quantity of sawtooth is one or more.
Described band stiffening rib steel core concrete column is single limb post or many limbs post.
The beneficial effects of the utility model are: concrete filled steel tube by concrete contraction, creeping etc. affects interfacial adhesion and is easy to be overcome and occurs coming to nothing, cause Lack of support, the zigzag stiffening rib be provided with can strengthen the adhesion stress of steel pipe and concrete interface, make steel pipe and concrete interface well-bonded, play the advantage of coupled column; The straight rib that current engineering extensively adopts only plays the effect of stiffened steel plates, prevent steel pipe flexing, and zigzag stiffening rib is not increasing under material usage prerequisite, the effect of stiffened steel plates can not only be played, and steel pipe and concrete effectively can be bonded together, serve the double action of stiffening rib and shear connector; Compared with steel core concrete column, band zigzag stiffening rib steel core concrete column steel pipe tube wall can be thinner, meeting under identical requirement for bearing capacity, adopting the steel core concrete column of band zigzag stiffening rib to reduce steel using amount, play the effect reduced costs; By the restriction of steel pipe flakiness ratio, in steel core concrete column, the size of steel pipe is relatively little, be difficult to be applied to large-sized bridge pier, steel core concrete column steel pipe with zigzag stiffening rib is put more energy into by zigzag stiffening rib, thus the size of steel pipe can be increased, can the large-size components such as bridge pier be applied to.
Compared with prior art, the utility model can increase steel pipe and concrete interface adhesion stress, significantly improve the ultimate bearing capacity of component, deformability and ductility, effectively prevent steel pipe and concrete interface from coming to nothing, and effectively improve steel pipe to core concrete effect of contraction.
Accompanying drawing explanation
Below with reference to the accompanying drawings and embodiment, structure of the present utility model and feature are further described.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the plan structure schematic diagram removing the straight rib of described longitudinal direction and described stiffening rib after described steel pipe body in Fig. 1.
Fig. 3 is the hypotenuse structural representation of stiffening rib described in the utility model.
In accompanying drawing 1 ~ Fig. 3,1. steel pipe body, 2. concrete, 3. longitudinal straight rib, 4. stiffening rib.
Detailed description of the invention
Referring to accompanying drawing 1 ~ Fig. 3, a kind of band stiffening rib steel core concrete column, comprise steel pipe body 1 and the concrete 2 being located at described steel pipe body 1 inside, described steel pipe body 1 inwall is fixed with longitudinally straight rib 3, two bottom surfaces of the straight rib 3 of described longitudinal direction are fixed with respectively stretches out the contrary and stiffening rib 4 be crisscross arranged in direction, the cross section of described stiffening rib is triangular in shape, and the hypotenuse indentation of described stiffening rib.
Preferably, the cross section of described steel pipe body 1 is closed circle, square, rectangle, ellipse or polygon.
The rib number of described stiffening rib 4 is single rib or many ribs, and on described stiffening rib 4, the quantity of sawtooth is one or more.
Described band stiffening rib steel core concrete column is single limb post or many limbs post.
The utility model is when making, and the manufacture craft of described steel pipe body comprises that heat is pricked, welding or splicing, after described steel pipe body, the straight rib of described longitudinal direction and described stiffening rib welded together after, inner concreting.
The zigzag stiffening rib that the utility model is provided with can strengthen the adhesion stress of steel pipe and concrete interface, make steel pipe and concrete interface well-bonded, play the advantage of coupled column; Under not increasing material usage prerequisite, the effect of stiffened steel plates can not only be played, and steel pipe and concrete effectively can be bonded together, serve the double action of stiffening rib and shear connector; Band zigzag stiffening rib steel core concrete column steel pipe tube wall can be thinner, meeting under identical requirement for bearing capacity, adopting the steel core concrete column of band zigzag stiffening rib to reduce steel using amount, play the effect reduced costs; Steel core concrete column steel pipe with zigzag stiffening rib is put more energy into by zigzag stiffening rib, thus can increase the size of steel pipe.
The utility model is applicable to steel-mixed combining structure technical field, steel pipe and concrete interface adhesion stress can be increased, significantly improve the ultimate bearing capacity of component, deformability and ductility, effectively prevent steel pipe and concrete interface from coming to nothing, and effectively improve steel pipe to core concrete effect of contraction, the column of the main pier stud, the arch rib of concrete-filled steel tubes arch bridge, subway and the highrise building that are used as large span or high pier bridge.
Described above is only preferred embodiment of the present utility model; above-mentioned specific embodiment is not to restriction of the present utility model; all those of ordinary skill in the art, according to describing retouching, the amendment made above or equivalent replacing, all belong to protection domain of the present utility model.
Claims (4)
1. a band stiffening rib steel core concrete column, comprise steel pipe body and the concrete being located at described steel pipe body interior, it is characterized in that: described steel pipe inner body wall is fixed with longitudinally straight rib, two bottom surfaces of the straight rib of described longitudinal direction are fixed with respectively stretches out the contrary and stiffening rib be crisscross arranged in direction, the cross section of described stiffening rib is triangular in shape, and the hypotenuse indentation of described stiffening rib.
2. band stiffening rib steel core concrete column according to claim 1, is characterized in that: the cross section of described steel pipe body is closed circle, square, rectangle, ellipse or polygon.
3. band stiffening rib steel core concrete column according to claim 1, is characterized in that: the rib number of described stiffening rib is single rib or many ribs, and on described stiffening rib, the quantity of sawtooth is one or more.
4. band stiffening rib steel core concrete column according to claim 1, is characterized in that: described band stiffening rib steel core concrete column is single limb post or many limbs post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520806442.5U CN205171832U (en) | 2015-10-19 | 2015-10-19 | Take stiffening rib steel core concrete column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520806442.5U CN205171832U (en) | 2015-10-19 | 2015-10-19 | Take stiffening rib steel core concrete column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205171832U true CN205171832U (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520806442.5U Expired - Fee Related CN205171832U (en) | 2015-10-19 | 2015-10-19 | Take stiffening rib steel core concrete column |
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| Country | Link |
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| CN (1) | CN205171832U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106088477A (en) * | 2016-08-19 | 2016-11-09 | 深圳大学建筑设计研究院有限公司 | A kind of concrete filled steel tube rod structure |
| CN106337532A (en) * | 2016-08-25 | 2017-01-18 | 广东工业大学 | Double-toothed-connection-component inner double-walled pipe combination member and manufacturing method thereof |
| CN107060111A (en) * | 2017-04-07 | 2017-08-18 | 盐城工学院 | The compound node and its construction method of steel core concrete column and beams of concrete |
| CN108716191A (en) * | 2018-08-16 | 2018-10-30 | 中交路桥北方工程有限公司 | A kind of concrete arch rib Covered with Angles sleeve-board group and its bracing means |
| CN110821042A (en) * | 2019-11-08 | 2020-02-21 | 重庆大学 | Novel steel pipe concrete combined section column |
| CN111502124A (en) * | 2020-05-19 | 2020-08-07 | 潍坊宏图环保设备有限公司 | Energy-saving rectangular steel tube concrete column |
| CN111706003A (en) * | 2020-07-23 | 2020-09-25 | 南京工业大学 | Round steel tube concrete with negative Poisson's ratio effect and design method thereof |
| CN115217270A (en) * | 2021-04-20 | 2022-10-21 | 中国建筑设计研究院有限公司 | Large-diameter circular steel tube concrete column with built-in vertical ribs and preparation method thereof |
-
2015
- 2015-10-19 CN CN201520806442.5U patent/CN205171832U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106088477A (en) * | 2016-08-19 | 2016-11-09 | 深圳大学建筑设计研究院有限公司 | A kind of concrete filled steel tube rod structure |
| CN106337532A (en) * | 2016-08-25 | 2017-01-18 | 广东工业大学 | Double-toothed-connection-component inner double-walled pipe combination member and manufacturing method thereof |
| CN107060111A (en) * | 2017-04-07 | 2017-08-18 | 盐城工学院 | The compound node and its construction method of steel core concrete column and beams of concrete |
| CN108716191A (en) * | 2018-08-16 | 2018-10-30 | 中交路桥北方工程有限公司 | A kind of concrete arch rib Covered with Angles sleeve-board group and its bracing means |
| CN110821042A (en) * | 2019-11-08 | 2020-02-21 | 重庆大学 | Novel steel pipe concrete combined section column |
| CN111502124A (en) * | 2020-05-19 | 2020-08-07 | 潍坊宏图环保设备有限公司 | Energy-saving rectangular steel tube concrete column |
| CN111502124B (en) * | 2020-05-19 | 2021-06-29 | 潍坊宏图环保设备有限公司 | Energy-saving rectangular steel tube concrete column |
| CN111706003A (en) * | 2020-07-23 | 2020-09-25 | 南京工业大学 | Round steel tube concrete with negative Poisson's ratio effect and design method thereof |
| CN115217270A (en) * | 2021-04-20 | 2022-10-21 | 中国建筑设计研究院有限公司 | Large-diameter circular steel tube concrete column with built-in vertical ribs and preparation method thereof |
| CN115217270B (en) * | 2021-04-20 | 2023-06-13 | 中国建筑设计研究院有限公司 | Large-diameter circular steel tube concrete column with built-in vertical ribs and preparation method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20201019 |