CN202954585U - Externally bound type unbonded prestressed circular water basin - Google Patents
Externally bound type unbonded prestressed circular water basin Download PDFInfo
- Publication number
- CN202954585U CN202954585U CN 201220729509 CN201220729509U CN202954585U CN 202954585 U CN202954585 U CN 202954585U CN 201220729509 CN201220729509 CN 201220729509 CN 201220729509 U CN201220729509 U CN 201220729509U CN 202954585 U CN202954585 U CN 202954585U
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- China
- Prior art keywords
- water basin
- pool
- basin
- unbonded prestressed
- circular water
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Reinforcement Elements For Buildings (AREA)
Abstract
An externally bound type unbonded prestressed circular water basin comprises a basin wall and nonprestressed reinforcements strapped to the basin wall, and is characterized in that unbonded prestressed reinforcements are strapped to the outer side of the basin wall. The unbonded prestressed reinforcements are covered with protective layers through whitewashing. The circumferential tensile force of the circular water basin is resisted by the externally bound prestressed reinforcements so that no circumferential tensile force or only partial circumferential tensile force is generated in concrete under load effects such as water and temperature; however, the crack width is controlled within 0.2mm; as a result, the integrity and the use durability of the circular water basin are improved and the leakage hidden danger of the water basin is reduced; and moreover, the service life of the water basin is prolonged.
Description
Technical field:
The utility model belongs to a kind of concrete steel building structure, particularly a kind of outer formula prestressing without bondn round pool of tying up.
Background technology:
At present, domestic round pool adopts reinforced concrete structure mostly.Steel concrete circular pool generally is divided into prestressing force round pool and non-prestressed round pool two classes.When larger, generally adopt the prestressed structure round pool when the volume of round pool or diameter, sometimes can adopt the separate type round pool that shrinkage joint is set.
Prestressed structure round pool globality is strong, and Crack Control is better, and hidden leakage defect is less, and good endurance is in non-prestressed round pool, thereby is widely used in dipl-sinking water tank.Prestressed form is divided into prestressing without bondn and the kinds such as bonded prestress, prestress lacing, wherein prestressing without bondn and bonded prestress all are designed to embedded, the round pool that Fig. 1 is common prestressed structure form, prestressed reinforcement wherein is embedded in the steel concrete inside of pond body.
But, this embedded prestressing force round pool, after long-time the use, makes and produce the ring pulling force in concrete under the load action such as water, temperature, is difficult for crack control width within 0.2mm, make pond Seepage occur, thereby reduced the application life of round pool.
Summary of the invention:
The purpose of this utility model just is to overcome above-mentioned the deficiencies in the prior art, and a kind of outer formula prestressing without bondn round pool of tying up is provided, the prestressed reinforcement that this round pool utilization is tied up is outward resisted the hoop tension of round pool, can effectively avoid pool wall that the phenomenon of many places seepage occurs, thereby improve the service life in pond.
As above design, the technical solution of the utility model is: tie up formula prestressing without bondn round pool outside a kind of, comprise pool wall and the colligation nonprestressed reinforcement on pool wall, it is characterized in that: at pool wall outside colligation no-cohesive prestressed reinforcement.
The outside gunite coat of above-mentioned no-cohesive prestressed reinforcement.
Above-mentioned no-cohesive prestressed reinforcement adopts the un-bonded prestressed steel strand with corrosion-inhibiting coating and surrounding layer, steel strand selection standard intensity f
Py=1860MPa, elastic modulus E=1.95x10MPa, elongation per unit length>=3.5%, nominal diameter d=15.2mm.
The prestressed reinforcement that the utility model utilization is tied up is outward resisted the hoop tension (comprising the ring pulling force that water pressure, temperature cause) of round pool, make and do not produce ring pulling force or generating portion ring pulling force only in concrete under the load actions such as water, temperature, but control crack width within 0.2mm, globality and the useful life longevity of round pool have been improved, reduce the hidden leakage defect in pond, thereby extended the service life in pond.
The accompanying drawing explanation:
Fig. 1 is the structural representation of embedded prestressing force round pool;
Fig. 2 is structural representation of the present utility model.
The specific embodiment:
As shown in Figure 2: tie up formula prestressing without bondn round pool outside a kind of, comprise pool wall 1 and the colligation nonprestressed reinforcement 2 on pool wall.Innovative point of the present utility model is: at pool wall outside colligation no-cohesive prestressed reinforcement 3, and the outside gunite coat 4 of this no-cohesive prestressed reinforcement.Described no-cohesive prestressed reinforcement adopts the un-bonded prestressed steel strand with corrosion-inhibiting coating and surrounding layer, steel strand selection standard intensity f
Py=1860MPa, elastic modulus E=1.95x10MPa, elongation per unit length>=3.5%, nominal diameter d=15.2mm, its quality requirement should meet the regulation of " un-bonded prestressed steel strand " JG161 and " unbonded prestressing tendon special anti-corrosion lubricating grease " JG3007.
Construction sequence of the present utility model is:
Ground is processed, and---bed course------------------fixedly------the stretch-draw no-cohesive prestressed reinforcement is whitewashed no-cohesive prestressed reinforcement formwork colligation pool wall nonprestressed reinforcement in form removal to build pool wall steel concrete for base plate and rim of a cup by sealing off and covering anchorage---examination water---.
Existing pond is transformed into to construction sequence of the present utility model chamber is:
Fixedly no-cohesive prestressed reinforcement---stretch-draw no-cohesive prestressed reinforcement---sealing off and covering anchorage---examination water---whitewashing.
Claims (3)
1. tie up formula prestressing without bondn round pool outward for one kind, comprise pool wall and the colligation nonprestressed reinforcement on pool wall, it is characterized in that: at pool wall outside colligation no-cohesive prestressed reinforcement.
2. according to claim 1ly outer tie up formula prestressing without bondn round pool, it is characterized in that: the outside gunite coat of above-mentioned no-cohesive prestressed reinforcement.
3. according to claim 1 and 2ly outer tie up formula prestressing without bondn round pool, it is characterized in that: above-mentioned no-cohesive prestressed reinforcement adopts the un-bonded prestressed steel strand with corrosion-inhibiting coating and surrounding layer, steel strand selection standard intensity f
Py=1860MPa, elastic modulus E=1.95x10MPa, elongation per unit length>=3.5%, nominal diameter d=15.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220729509 CN202954585U (en) | 2012-12-24 | 2012-12-24 | Externally bound type unbonded prestressed circular water basin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220729509 CN202954585U (en) | 2012-12-24 | 2012-12-24 | Externally bound type unbonded prestressed circular water basin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202954585U true CN202954585U (en) | 2013-05-29 |
Family
ID=48460164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220729509 Expired - Lifetime CN202954585U (en) | 2012-12-24 | 2012-12-24 | Externally bound type unbonded prestressed circular water basin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202954585U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112663774A (en) * | 2021-01-18 | 2021-04-16 | 中铁八局集团有限公司 | Construction method of unbonded prestressed large-diameter reinforced concrete thin-wall circular water tank |
-
2012
- 2012-12-24 CN CN 201220729509 patent/CN202954585U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112663774A (en) * | 2021-01-18 | 2021-04-16 | 中铁八局集团有限公司 | Construction method of unbonded prestressed large-diameter reinforced concrete thin-wall circular water tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130529 |
|
| CX01 | Expiry of patent term |