CN104652703A - Carbon fiber-reinforced plastic steel rib-steel pipe concrete compound column - Google Patents
Carbon fiber-reinforced plastic steel rib-steel pipe concrete compound column Download PDFInfo
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- CN104652703A CN104652703A CN201310599488.XA CN201310599488A CN104652703A CN 104652703 A CN104652703 A CN 104652703A CN 201310599488 A CN201310599488 A CN 201310599488A CN 104652703 A CN104652703 A CN 104652703A
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- reinforced plastic
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- pipe concrete
- reinforcing bar
- steel pipe
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Abstract
The invention discloses a carbon fiber-reinforced plastic-steel rib-steel pipe concrete compound column and belongs to the field of a building element technology. The compound column comprises a carbon fiber-reinforced plastic fabric, steel ribs and a steel pipe concrete column core. The steel ribs are located at four corners of the steel pipe concrete column core, the carbon fiber-reinforced plastic fabric is pasted to the outer sides of the steel ribs, and the carbon fiber-reinforced plastic fabric is pasted to the steel ribs and the steel pipe concrete column core so that an integral body is formed. Compared with a steel corner reinforcement method, the reinforcement method after steel pipe concrete column core destroying can well improve bearing and ductility of the steel pipe concrete column core.
Description
Technical field
The present invention relates to a kind of building unit technology, particularly a kind of carbon fibre reinforced plastic reinforcing bar-concrete filled steel tube coupled column.
Background technology
Steel tube concrete core pole, refers to a kind of structural element arranging concrete filled steel tube in the inner side of steel core concrete column.This component provides effect of contraction due to the concrete of steel pipe to core space, creates sleeve effect, and thus can improve the bearing capacity of post significantly, improve the overall anti-seismic performance of building, its energy dissipation capacity is apparently higher than general steel core concrete column.This kind of post has been applied among many engineerings, and be often applied in concrete engineering in the post of which floor high axial compression ratio of bottom of highrise building, its stress is mainly small eccentric pressure.But remain in following main deficiency: when steel tube concrete core pole is at compression damage, the steel core concrete column two parts in steel core concrete column and outside may not destroy simultaneously, inside and outside in other words can not good co-operation.
For this problem, some scholars propose the concept of boundary volume distributed ratio, that is: " when volume distributed ratio is greater than boundary volume distributed ratio internal and external parts can co-operation until destroy, outside no side prior to inboard portion destroy ".The proposition of this theory solves a great problem in steel tube concrete core pole investigation and application really, but in some engineer applied, its boundary volume distributed ratio is excessive, is difficult to realize.
Because China is between two Main Seismic Areas bands in the world, therefore, earthquake is inevitable.Just there is the earthquake on the ground such as Taiwan, Japan recent years, although fail to involve continent, to provide for a rainy day or right.
Summary of the invention
The object of this invention is to provide a kind of carbon fibre reinforced plastic reinforcing bar-concrete filled steel tube coupled column.After steel tube concrete core pole destroys, by the consolidation process of reinforcing bar and carbon fibre reinforced plastic (CFRP), thus improve bearing capacity and the ductility of component.
To achieve these goals, technical scheme of the present invention is as follows:
Carbon fibre reinforced plastic reinforcing bar-concrete filled steel tube coupled column, this coupled column comprises carbon fibre reinforced plastic fabric, reinforcing bar and steel tube concrete core pole.Reinforcing bar described in it is positioned at the corner of steel tube concrete core pole, and carbon fibre reinforced plastic fabric is pasted on the outside of reinforcing bar, and it is an entirety that carbon fibre reinforced plastic fabric and reinforcing bar, steel tube concrete core pole are pasted.
Carbon fibre reinforced plastic reinforcing bar-concrete filled steel tube coupled column as above, described reinforcing bar can be angle steel, also can be formed by Plate Welding; The fabric that carbon fibre reinforced plastic fabric adopts can be unidirectional or two-way, and machine direction and mast axis angle are between 0 ~ 90o.
Carbon fibre reinforced plastic reinforcing bar-concrete filled steel tube coupled column as above, the preparation method of this coupled column comprises the steps:
1. the outer side frame of steel tube concrete core pole founds reinforcing bar, is connected between reinforcing bar by horizontal batten plate, and the spacing of reinforcing bar and steel tube concrete core pole should reduce as far as possible;
2. " building slurry " is utilized to touch flat by the external surface of post;
3. at outside sticking carbon fiber reinforced plastic fabric.
The invention has the beneficial effects as follows: the reinforcement means adopted after its steel tube concrete core pole is damaged, than the simple carrying and the ductility that adopt the reinforcement means of angle steel better can improve steel tube concrete core pole.
Accompanying drawing explanation
Accompanying drawing is schematic cross-section of the present invention.
Detailed description of the invention
As shown in the figure, carbon fibre reinforced plastic reinforcing bar-concrete filled steel tube coupled column of the present invention, comprises carbon fibre reinforced plastic fabric 2, reinforcing bar 1, steel tube concrete core pole three part.Wherein, steel tube concrete core pole comprises round steel pipe and its inside and outside portion concrete.Reinforcing bar 1 is positioned at the corner of steel tube concrete core pole, and carbon fibre reinforced plastic fabric 2 is pasted on the outside of reinforcing bar, and carbon fibre reinforced plastic forms entirety by pasting with reinforcing bar, steel tube concrete core pole.Reinforcing bar can be angle steel, also can be formed by Plate Welding; The fabric that carbon fibre reinforced plastic fabric 2 adopts can be unidirectional or two-way, and machine direction and mast axis angle are between 0 ~ 90o.
Reinforcement means after steel tube concrete core pole of the present invention is damaged, when reinforcing steel tube concrete core pole, found reinforcing bar at the outer side frame of steel tube concrete core pole, connected between reinforcing bar by horizontal batten plate, the spacing of reinforcing bar and steel tube concrete core pole should reduce as far as possible; That is, angle steel (or Plate Welding forms) is stood on the corner place of post, and connect into entirety by horizontal batten plate.Then " building slurry " is used to touch flat by the external surface of post, finally at the outside sticking carbon fiber reinforced plastic fabric of post.
Claims (1)
1. carbon fibre reinforced plastic reinforcing bar-concrete filled steel tube coupled column, this coupled column comprises carbon fibre reinforced plastic fabric, reinforcing bar and steel tube concrete core pole, it is characterized in that: described reinforcing bar (1) is positioned at the corner of steel tube concrete core pole, carbon fibre reinforced plastic fabric (2) is pasted on the outside of reinforcing bar (1), and it is an entirety that carbon fibre reinforced plastic fabric (2) and reinforcing bar (1), steel tube concrete core pole are pasted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310599488.XA CN104652703A (en) | 2013-11-25 | 2013-11-25 | Carbon fiber-reinforced plastic steel rib-steel pipe concrete compound column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310599488.XA CN104652703A (en) | 2013-11-25 | 2013-11-25 | Carbon fiber-reinforced plastic steel rib-steel pipe concrete compound column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104652703A true CN104652703A (en) | 2015-05-27 |
Family
ID=53244290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310599488.XA Pending CN104652703A (en) | 2013-11-25 | 2013-11-25 | Carbon fiber-reinforced plastic steel rib-steel pipe concrete compound column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104652703A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201143A (en) * | 2015-10-16 | 2015-12-30 | 沈阳建筑大学 | Carbon fiber thin-wall steel tube concrete composite column with internal FRP sectional material and method |
| CN113638497A (en) * | 2021-08-23 | 2021-11-12 | 沈阳建筑大学 | Bolt connection node of outer ring plate of square steel tube concrete column-steel beam |
-
2013
- 2013-11-25 CN CN201310599488.XA patent/CN104652703A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201143A (en) * | 2015-10-16 | 2015-12-30 | 沈阳建筑大学 | Carbon fiber thin-wall steel tube concrete composite column with internal FRP sectional material and method |
| CN113638497A (en) * | 2021-08-23 | 2021-11-12 | 沈阳建筑大学 | Bolt connection node of outer ring plate of square steel tube concrete column-steel beam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150527 |