CN202370165U - Prestressing force confined concrete member - Google Patents
Prestressing force confined concrete member Download PDFInfo
- Publication number
- CN202370165U CN202370165U CN2011205575577U CN201120557557U CN202370165U CN 202370165 U CN202370165 U CN 202370165U CN 2011205575577 U CN2011205575577 U CN 2011205575577U CN 201120557557 U CN201120557557 U CN 201120557557U CN 202370165 U CN202370165 U CN 202370165U
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- China
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- prestressing force
- concrete member
- reinforcing steel
- reinforcing bar
- presstressed reinforcing
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Abstract
The utility model discloses a prestresssing force confined concrete member. Longitudinal reinforcements (2) and confining reinforcements (3) are arranged in a concrete member body (1), and prestressing tendons (4) parallel to the longitudinal reinforcements (2) are arranged in the confining reinforcements (3), and each of the prestressing tendons (4) is in a tensioning state. The prestresssing force confined concrete member has the advantages of being small in volume, light, high in intensity, low in cost of manufacturing, and also being small in the steel consumption, and easy to manufacture and the like.
Description
Technical field
The utility model relates to a kind of prestressing force restriction concrete member for building, belongs to the concrete component manufacture technology field.
Background technology
Concrete component is widely used in the Structural Engineering.At present, concrete component of the prior art has generally adopted non-prestressed and two kinds of prestressing force, and non-prestressed member section is big, and steel using amount is big, and it is also big to conduct oneself with dignity; Prestressed member can reduce section area, reduce steel using amount, but existing prestressed member needs curve cloth rope usually, and need to improve concrete strength with adapt to member prestressing force applied and duty in requirement; And the use of confined concrete only is the ductility for reinforcement at present, and its contribution on intensity is not used.Therefore, the result of use of available coagulation soil member still is not ideal enough.
Summary of the invention
The purpose of the utility model is: the prestressing force restriction concrete member that a kind of volume is less, weight is light, bearing capacity is high, rigidity is big, cost is lower is provided, to overcome the deficiency of prior art.
The utility model is achieved in that a kind of prestressing force restriction concrete member of the utility model does; In concrete component, be provided with longitudinal reinforcement and constraint reinforcing bar; And in the constraint reinforcing bar, be provided with the presstressed reinforcing steel that is parallel to longitudinal reinforcement, and every presstressed reinforcing steel all is in tensioning state.
Be arranged on constraint reinforcing bar in the concrete component and be two-layer or two-layer when above, in concrete component, be provided with the bearing rod that can be connected with the constraint reinforcing bar on the different layers.
On presstressed reinforcing steel, be with sleeve pipe.
Above-mentioned sleeve pipe is bellows, plastic pipe or rubber tube.
Presstressed reinforcing steel is steel strand, steel tendon or high tensile reinforcement.
Because having adopted technique scheme, the utility model is that prestressing technique and confined concrete technology are combined and a kind of new structure form of generation.The utility model is through configuration constraint reinforcing bar and presstressed reinforcing steel in member; Through member is applied prestressing force; Make the constraint reinforcing bar just produce restraint forces, improve the efficient of constraint with this, simultaneously at the stressed initial stage; With the presstressed reinforcing steel instead of part muscle of being advocated, reach the purpose that improves material efficiency, reduces material usage.The utility model combines prestressing technique and confined concrete technology to be applied to the making of concrete component first; Make the constraint reinforcing bar just begin to produce restraint stress through applying prestressing force in the structure manufacture stage; Concrete intensity and ductility have been improved; And prestressed applying improved concrete anti-crack ability, and simultaneously, presstressed reinforcing steel can replace a part of tensile reinforcement.Have bearing capacity height, advantage that rigidity is big with this member that forms, under same bearing capacity condition, can effectively reduce member section and reduce material consumption, reduce the member cost.Simultaneously, presstressed reinforcing steel adopts straight line cloth rope, makes difficulty of construction reduce, easy operating.Therefore, the utility model compared with prior art, the utility model not only has the advantage that volume is less, in light weight, bearing capacity is high, rigidity is big, cost is low, but also have construction easily, advantage such as the anti-crack ability of concrete component finished product is strong.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is I-I sectional structure sketch map of Fig. 1.
The specific embodiment
Below, in conjunction with accompanying drawing and embodiment the utility model is done further to specify.
The embodiment of the utility model: when making concrete component 1; Set longitudinal reinforcement 2, constraint reinforcing bar 3 earlier; When concrete component 1 size of made is big; Constraint reinforcing bar 3 more than two-layer can be set in concrete component 1, and bearing rod 6 (as depicted in figs. 1 and 2) is set, with every longitudinal reinforcement 2 all with constraint reinforcing bar 3 link together (as shown in Figure 2); Then presstressed reinforcing steel 4 (presstressed reinforcing steel can adopt steel strand of the prior art, steel tendon or high tensile reinforcement to make) is parallel to longitudinal reinforcement 2 and passes constraint reinforcing bar 3, preferably presstressed reinforcing steel 4 is arranged on the medium position place of constraint reinforcing bar 3; And then by the traditional approach concreting to form required member shape; When treating that concrete strength reaches design strength, presstressed reinforcing steel 4 carried out stretch-draw, anchoring after (can adopt existing bonding is arranged and do not have two kinds of technologies of bonding) can make and obtain prestressing force restriction concrete member finished product.
When burying presstressed reinforcing steel 4 underground, can bury sleeve pipe 5 earlier underground and pass constraint reinforcing bar 3, its sleeve pipe 5 can adopt existing bellows, plastic pipe or rubber tube to make; After sleeve pipe 5 set; Concreting is to form required member shape again; Extract sleeve pipe 5 then out, in concrete component 1, will be formed with the preformed hole (sleeve pipe 5 can not extracted out yet) that can pass presstressed reinforcing steel 4 like this, when treating that concrete strength reaches design strength; After presstressed reinforcing steel 4 passed preformed hole (or passing sleeve pipe 5); Every presstressed reinforcing steel 4 is carried out stretch-draw, anchoring, to after being in the milk in the space between preformed hole (or sleeve pipe 5) and the presstressed reinforcing steel 4, can make obtaining prestressing force restriction concrete member finished product then.
When presstressed reinforcing steel 4 is applied prestressing force, adopt existing post stretching to carry out stretch-draw, make presstressed reinforcing steel 4 for the presstressed reinforcing steel that bonds or do not have bonding is arranged.
When presstressed reinforcing steel 4 was carried out anchoring, available conventional ground tackle carried out anchoring.
A kind of prestressing force restriction concrete member of the utility model of making according to the method described above does; In concrete component 1, be provided with longitudinal reinforcement 2 and constraint reinforcing bar 3; And in constraint reinforcing bar 3, be provided with the presstressed reinforcing steel 4 that is parallel to longitudinal reinforcement 2, and every presstressed reinforcing steel 4 all is in tensioning state.
Can be with sleeve pipe 5 or sleeve pipe 5 not according to the needs of making on the presstressed reinforcing steel 4 in above-mentioned concrete component 1.
Claims (5)
1. prestressing force restriction concrete member; It is characterized in that: in concrete component (1), be provided with longitudinal reinforcement (2) and constraint reinforcing bar (3); And in constraint reinforcing bar (3), be provided with the presstressed reinforcing steel (4) that is parallel to longitudinal reinforcement (2), and every presstressed reinforcing steel (4) all is in tensioning state.
2. prestressing force restriction concrete member according to claim 1; It is characterized in that: the constraint reinforcing bar (3) that is arranged in the concrete component (1) when above, is provided with the bearing rod (6) that can be connected with the constraint reinforcing bar (3) on the different layers for two-layer or two-layer in concrete component (1).
3. prestressing force restriction concrete member according to claim 1 is characterized in that: on presstressed reinforcing steel (4), be with sleeve pipe (5).
4. prestressing force restriction concrete member according to claim 3 is characterized in that: sleeve pipe (5) is bellows, plastic pipe or rubber tube.
5. prestressing force restriction concrete member according to claim 1 is characterized in that: presstressed reinforcing steel (4) is steel strand, steel tendon or high tensile reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205575577U CN202370165U (en) | 2011-12-28 | 2011-12-28 | Prestressing force confined concrete member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205575577U CN202370165U (en) | 2011-12-28 | 2011-12-28 | Prestressing force confined concrete member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202370165U true CN202370165U (en) | 2012-08-08 |
Family
ID=46593873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205575577U Expired - Fee Related CN202370165U (en) | 2011-12-28 | 2011-12-28 | Prestressing force confined concrete member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202370165U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184781A (en) * | 2011-12-28 | 2013-07-03 | 贵州大学 | Pre-stress confined concrete member and manufacturing method thereof |
| CN108517985A (en) * | 2018-05-30 | 2018-09-11 | 重庆建工集团股份有限公司 | A kind of prestressing without bondn steel reinforced concrete wall and its construction method |
-
2011
- 2011-12-28 CN CN2011205575577U patent/CN202370165U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184781A (en) * | 2011-12-28 | 2013-07-03 | 贵州大学 | Pre-stress confined concrete member and manufacturing method thereof |
| CN108517985A (en) * | 2018-05-30 | 2018-09-11 | 重庆建工集团股份有限公司 | A kind of prestressing without bondn steel reinforced concrete wall and its construction method |
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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: 20120808 Termination date: 20151228 |
|
| EXPY | Termination of patent right or utility model |