CN2749966Y - Overlong concrete building structure equipped with connector and prestressed tendon - Google Patents
Overlong concrete building structure equipped with connector and prestressed tendon Download PDFInfo
- Publication number
- CN2749966Y CN2749966Y CN 200420000407 CN200420000407U CN2749966Y CN 2749966 Y CN2749966 Y CN 2749966Y CN 200420000407 CN200420000407 CN 200420000407 CN 200420000407 U CN200420000407 U CN 200420000407U CN 2749966 Y CN2749966 Y CN 2749966Y
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- connector
- body plate
- ater
- casting
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Abstract
The utility model relates to an overlong concrete building structure with prestressed rids of a connector, which belongs to the technical field of general architecture conformation. The utility model is composed of rids without binding prestress, a stretching anchoring device, a connector, a body plate at the middle part, a transitional body plate, an edge body plate, a first stretching rear pouring band, a middle stretching rear pouring band, a last stretching rear pouring band and a connector pad. By using the rids without binding prestress, the stretching anchoring device and the connector, and combining the technique of the rear pouring bands, compressive prestress is established in concrete. The stretching operation of the prestressed rids and the pouring order of the rear pouring bands use the body plate at the middle part as a center to orderly proceed toward the circumference. The arrangement positions and the arrangement modes of the prestressed rids in the utility model are flexible, the compressive prestress applying effect is good and the manufacturing process is simple. The utility model is especially suitable for frame structure and plate-column structure systems, and has good economy and applicability.
Description
Affiliated technical field
The utility model belongs to buildings in general constructing technology field.
Background technology
At existing " Code for design of concrete structures " (GB50010-2002), to shrinkage joint maximum spacing in the reinforced concrete buildings be: cast-in-place frame construction indoor or native in for 55m, in the open for 35m; The corresponding situation of cast-in-place shear wall structure is got 45m, 30m respectively, and after standard also allowed " adopting special prestressing measure " simultaneously, the shrinkage joint can exceed the limit value of afore mentioned rules.Building is towards the increasing development of planar dimension now, by the requirement of standard the shrinkage joint being set brings a lot of inconvenience for the construction and the use of building, therefore, the distance that increases the shrinkage joint as best one can of how employing new technology even cancellation shrinkage joint, engineering design and construction is all had positive meaning.
At present existingly solve ultra-long concrete and do not establish the technology at shrinkage joint and have: " a kind of structure of prestressed reinforced concrete super-long structural " by applying prestressing method.Be characterized in: the prestressing force overlap joint muscle that passes through late poured band by stretch-draw realize compressive stress in the concrete continuously, reach the purpose that prevents the concrete structure cracking.This structural form all has certain limitation when using: (1) presstressed reinforcing steel mainly is arranged in the plate the inside, and prestressing force overlap joint muscle is in the stretch-draw of plate face.When needs, when whole or most of presstressed reinforcing steels are arranged in the beam the inside, realize that the stretch-draw of plate face is extremely difficult owing to structure.(2) be reducing effective compressive stress in the main board as cost, to make the concrete main body plate compressive stress of stretch-draw in advance produce supplementary loss during stretch-draw prestressing force overlap joint muscle, its numerical value that reduces and prestressing force overlap joint muscle length and to apply prestressed size relevant.
Summary of the invention
Can reach the purpose that the shrinkage joint is not established in ultra-long concrete building structure by applying prestressed method; But there are some shortcomings in existing technology, be difficult to realize that whole or most of presstressed reinforcing steels are arranged in the beam the inside, and stretch-draw prestressing force overlap joint influential point of tendons makes the concrete main body plate compressive stress of stretch-draw in advance produce supplementary loss.Use for reference and adopt connector to realize the experience of Prestressed Continuous in the bridge engineering, connector technique is improved being applied in the ultra-long concrete building structure, form a kind of new Building technology.
The technical scheme that its technical problem that solves the utility model adopts is: form a kind of ultra-long concrete building structure of disposing the connector presstressed reinforcing steel, it is made of unbonded prestressing tendon, tension ground tackle, connector, concrete main body plate (comprising mid-section body plate, excessive main body plate, edge body plate), ater-casting (comprising stretch-draw ater-casting, middle stretch-draw ater-casting and last stretch-draw ater-casting first) and connector pad.Unbonded prestressing tendon is embedded in the concrete main body plate, and tension ground tackle, connector, connector pad all are enclosed within above the unbonded prestressing tendon, are positioned at the ater-casting; Wherein tension ground tackle is close to the concrete main body plate, and the back is followed successively by connector and connector pad.By pretensioning building structure mid-section body plate, set of connectors, water the ater-casting, and from the middle part to around construct successively by preceding step, apply compressive pre-stress for ultra-long concrete building structure horizontal direction.
The utility model can satisfy the construction needs when whole or most of presstressed reinforcing steels are arranged in the beam the inside, and presstressed reinforcing steel does not need oblique ejecting plate face, directly stretch-draw in the ater-casting; Simultaneously, during a collection of presstressed reinforcing steel, can not make the concrete main body plate compressive stress of stretch-draw in advance produce supplementary loss after the stretch-draw.In the utility model, because presstressed reinforcing steel is continuous; Presstressed reinforcing steel also can be used as the structure stress muscle and uses except that reducing the building structure thermal stresses.The utility model is particularly suitable for less frame construction and the slab column system of building vertical member horizontal direction ratio of rigidity.The utlity model has excellent economy and applicability, the development of Building technology is played a driving role.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further.
Fig. 1 is a formation drawing of the present utility model.
Fig. 2 is the detail drawing of the utility model at the place, ater-casting.
Among the figure: 1. unbonded prestressing tendon, 2. tension ground tackle, 3. connector, 4. the mid-section body plate, 5. excessively main body plate, 6. the edge body plate, 7. first the stretch-draw ater-casting, 8. in the middle of stretch-draw ater-casting, 9. last stretch-draw ater-casting, 10. connector pad.
The specific embodiment
The utility model is to realize in such a way:
1, by the ater-casting rationally is set, whole building structure is divided into different main body plates.The geometric center place is mid-section body plate (4), is the excessive main body plate of one or a few blocks (5) outward from the middle part main body plate, and outermost is edge body plate (6).
2, mid-section body plate (4) on every side be stretch-draw ater-casting (7) first, be the center with the mid-section body plate, from stretch-draw ater-casting (8) in the middle of the stretch-draw ater-casting is one or several outward first, outermost is last stretch-draw ater-casting (9).
3, arrange unbonded prestressing tendon (1) in every plate and every ater-casting, presstressed reinforcing steel can be arranged in the plate or in the beam according to the design needs.The arrangement form of presstressed reinforcing steel can be the straight line muscle that solves thermal stresses purely, also can be the stressed curve muscle of while participation structure.
4, when concrete reaches length of time of allowable temperature tension of prestressed tendon and intensity, beginning stretch-draw unbonded prestressing tendon (1).The first presstressed reinforcing steel in the stretch-draw mid-section body plate (4) in stretch-draw ater-casting (7) first, put connector (3) in tension ground tackle (2) back then, connector back mounted connector pad (10) couples together the intraplate unbonded prestressing tendon of difference by connector.
5, connector pad (10) should have enough deformabilities, tension ground tackle (2), connector (3) and part unbonded prestressing tendon (1) deformation requirements after stressed last time in the time of satisfying stretch-draw next time.The connector pad can be made by expanded material, rubber or plastics.
6, build stretch-draw ater-casting (7) first with expansive concrete, when concrete reaches permission stretch-draw intensity, the unbonded prestressing tendon (1) in first excessive main body plate of stretch-draw (5) in stretch-draw ater-casting (8) in the middle of article one of the most close stretch-draw first ater-casting.Put connector (3) in tension ground tackle (2) back equally, connector back mounted connector pad (10) couples together the intraplate unbonded prestressing tendon of difference by connector.
7, constantly repeating previous step, is that the center is successively toward stretch-draw all around by mid-section body plate (4).
8, built last stretch-draw ater-casting (9) and concrete with expansive concrete and reached when allowing stretch-draw intensity, at last the unbonded prestressing tendon (1) in building structure periphery stretch-draw edge body plate (6).
Claims (5)
1, a kind of ultra-long concrete building structure of disposing the connector presstressed reinforcing steel, it by unbonded prestressing tendon (1), tension ground tackle (2), connector (3), mid-section body plate (4), excessively main body plate (5), edge body plate (6), stretch-draw ater-casting (7), middle stretch-draw ater-casting (8), last stretch-draw ater-casting (9), connector pad (10) are formed first; It is characterized in that unbonded prestressing tendon is embedded in the concrete main body plate, tension ground tackle, connector, connector pad all are enclosed within above the unbonded prestressing tendon, are positioned at the ater-casting.
2, a kind of ultra-long concrete building structure of disposing the connector presstressed reinforcing steel according to claim 1, it is characterized in that tension ground tackle (2) back puts connector (3), connector back mounted connector pad (10) couples together the intraplate unbonded prestressing tendon of difference (1) by connector.
3, a kind of ultra-long concrete building structure of disposing the connector presstressed reinforcing steel according to claim 1 is characterized in that connector pad (10) has enough deformabilities, can be made by expanded material, rubber or plastics.
4, a kind of ultra-long concrete building structure of disposing the connector presstressed reinforcing steel according to claim 1 is characterized in that unbonded prestressing tendon (1) can be arranged in the plate or in the beam according to the design needs; The arrangement form of presstressed reinforcing steel can be the straight line muscle, also can be the curve muscle.
5, a kind of ultra-long concrete building structure of disposing the connector presstressed reinforcing steel according to claim 1 is characterized in that the ater-casting builds with expansive concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420000407 CN2749966Y (en) | 2004-01-08 | 2004-01-08 | Overlong concrete building structure equipped with connector and prestressed tendon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420000407 CN2749966Y (en) | 2004-01-08 | 2004-01-08 | Overlong concrete building structure equipped with connector and prestressed tendon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2749966Y true CN2749966Y (en) | 2006-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420000407 Expired - Fee Related CN2749966Y (en) | 2004-01-08 | 2004-01-08 | Overlong concrete building structure equipped with connector and prestressed tendon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2749966Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720215A (en) * | 2012-06-21 | 2012-10-10 | 杭州南联土木工程科技有限公司 | Permanent-joint-free overlength reinforced concrete underground engineering design and building method utilizing restraining bodies |
| CN103790385A (en) * | 2014-02-26 | 2014-05-14 | 中国建筑第八工程局有限公司 | Construction method for tensioning prestressed structure |
| CN103850441A (en) * | 2014-03-19 | 2014-06-11 | 郭成顺 | Tensioning construction method and tensioning device of prestressed concrete structure |
| CN107762156A (en) * | 2016-08-18 | 2018-03-06 | 上海宝冶建设工业炉工程技术有限公司 | Prestressing force plate face angle-changing extension method |
-
2004
- 2004-01-08 CN CN 200420000407 patent/CN2749966Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720215A (en) * | 2012-06-21 | 2012-10-10 | 杭州南联土木工程科技有限公司 | Permanent-joint-free overlength reinforced concrete underground engineering design and building method utilizing restraining bodies |
| CN103790385A (en) * | 2014-02-26 | 2014-05-14 | 中国建筑第八工程局有限公司 | Construction method for tensioning prestressed structure |
| CN103790385B (en) * | 2014-02-26 | 2016-08-17 | 中国建筑第八工程局有限公司 | The construction method of prestressed structure stretch-draw |
| CN103850441A (en) * | 2014-03-19 | 2014-06-11 | 郭成顺 | Tensioning construction method and tensioning device of prestressed concrete structure |
| CN103850441B (en) * | 2014-03-19 | 2016-02-10 | 郭成顺 | A kind of stretch-draw construction method of prestressed reinforced concrete construction and tensioning equipment |
| CN107762156A (en) * | 2016-08-18 | 2018-03-06 | 上海宝冶建设工业炉工程技术有限公司 | Prestressing force plate face angle-changing extension method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060104 Termination date: 20110108 |