CN204025958U - A kind of underground steel lined reinforced concrete penstock - Google Patents
A kind of underground steel lined reinforced concrete penstock Download PDFInfo
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- CN204025958U CN204025958U CN201420489454.5U CN201420489454U CN204025958U CN 204025958 U CN204025958 U CN 204025958U CN 201420489454 U CN201420489454 U CN 201420489454U CN 204025958 U CN204025958 U CN 204025958U
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Abstract
The utility model discloses a kind of underground steel lined reinforced concrete penstock, comprise the stiffening ring that steel pipe body and hoop interval are fixed on steel pipe body outer wall, longitudinal steel bar is axially arranged with along steel pipe body between every two adjacent stiffening rings, the two ends of this longitudinal steel bar are fixed on stiffening ring, and longitudinal steel bar is arranged around steel pipe body interval; Be fixed with the circumferential reinforcement around steel pipe body inside described longitudinal steel bar, this circumferential reinforcement is arranged along steel pipe body axially spaced-apart; Concrete has been built, in described circumferential reinforcement, longitudinal steel bar and stiffening ring are all wrapped in by concrete outside described steel pipe body.The utility model solves the large problem of the reinforcement construction difficulty of underground steel lined reinforced concrete penstock, by factorial praluction, greatly reduces the workload of reinforcing bar field fabrication, makes convenient and quick construction, and quality is easy to ensure.Further, reinforcing bar is arranged by steel pipe body outer wall, and stress condition is good.
Description
Technical field
The utility model belongs to construction of hydropower plant field, is specifically related to a kind of underground steel lined reinforced concrete penstock.
Background technique
When Hydropower Station Underground penstock designs, general employing is in the structure of lined steel pipe outer wrapping plain concrete, when running into the situations such as geological condition variation in work progress, need the structural strength increasing whole penstock to bear larger radial force, one of conventional way increases to join reinforcing bar in lined steel pipe external wrapping concrete.Its construction sequence is: first the steel pipe transmission with stiffening ring is entered tunnel, then staff enters tunnel, makes circumferential reinforcement and longitudinal steel bar outward at steel pipe, and last concreting is by whole lined steel pipe and bar construction parcel.
But this kind of underground steel lined reinforced concrete penstock structure exists following defect: 1. due to the tunnel limited space outside steel pipe, reinforcement fabrication installs difficulty, and construction quality is difficult to ensure.2., because reinforcing bar all needs field fabrication to install, long construction period, takies the straight line duration.3. the reinforcing bar of the underground steel lined reinforced concrete penstock after shaping is configured in the position away from lined steel pipe, when bearing internal water pressure, longitudinally and the radial force that can bear of circumferential reinforcement less, do not reach the effect of well enhancing structure stress.
Model utility content
For above-mentioned technical problem, the utility model is intended to the outside reinforcing bar construction problem solving underground steel lined reinforced concrete penstock, provides a kind of underground steel lined reinforced concrete penstock of convenient and quick construction.
The technological scheme that the utility model is dealt with problems is: a kind of underground steel lined reinforced concrete penstock, comprise the stiffening ring that steel pipe body and hoop interval are fixed on steel pipe body outer wall, longitudinal steel bar is axially arranged with along steel pipe body between every two adjacent stiffening rings, the two ends of this longitudinal steel bar are fixed on stiffening ring, and longitudinal steel bar is arranged around steel pipe body interval; Be fixed with the circumferential reinforcement around steel pipe body inside described longitudinal steel bar, this circumferential reinforcement is arranged along steel pipe body axially spaced-apart; Concrete has been built, in described circumferential reinforcement, longitudinal steel bar and stiffening ring are all wrapped in by concrete outside described steel pipe body.
In technique scheme, the two ends of described longitudinal steel bar are fixed on that one end near steel pipe body on stiffening ring, that is, the reinforcing bar configured in external wrapping concrete is arranged near steel pipe body outer wall, when bearing internal water pressure, longitudinal and circumferential reinforcement can play the effect well strengthening and entirely descend steel lined reinforced concrete penstock structure stress.
In technique scheme, described longitudinal steel bar is " U " shape, the bending extension at the two ends of longitudinal steel bar can better and stiffening ring fix, make to connect more fastening, described stiffening ring has the function of bearing rod concurrently.Preferably, bending extension, longitudinal steel bar two ends height is less than the height of stiffening ring, so that the whole Transporting of shaping rear steel pipe.
Underground of the present utility model steel lined reinforced concrete penstock is when constructing, first processing and fabricating steel pipe body fix stiffening ring at steel pipe body outer wall in factory, then fixing " U " shape longitudinal steel bar between stiffening ring, longitudinal steel bar is near steel pipe body outer wall, circumferential reinforcement is fixed afterwards inside longitudinal steel bar, afterwards the steel pipe transmission of configuration reinforcement is entered tunnel, after-pouring concrete in place is by whole steel pipe body and outside reinforcing bar parcel.
The beneficial effects of the utility model are: the reinforcing bar that the pipe of underground of the present utility model steel lined reinforced concrete penstock configures outward completes in factory process, then to enter erecting bed in place in transport, thus greatly reduce the workload of reinforcing bar field fabrication installation, avoid at narrow tunnel in-cavity construction, make convenient and quick construction, do not take the straight line duration, quality is easy to ensure.
Meanwhile, because reinforcing bar is configured in the position near steel pipe body outer wall, when bearing internal water pressure, longitudinal and circumferential reinforcement serves the effect well strengthening and entirely descend steel lined reinforced concrete penstock structure stress.
Accompanying drawing explanation
Fig. 1 is the sectional arrangement drawing of the utility model underground steel lined reinforced concrete penstock.
In figure, 1-circumferential reinforcement, 2-longitudinal steel bar, 3-stiffening ring, 4-steel pipe body outer wall, 5-steel pipe body.
Embodiment
As shown in Figure 1, a kind of underground steel lined reinforced concrete penstock, comprise the stiffening ring 3 that steel pipe body 5 and hoop interval are fixed on steel pipe body outer wall 4, longitudinal steel bar 2 is axially arranged with along steel pipe body 5 between every two adjacent stiffening rings 3, described longitudinal steel bar 2 is " U " shape, the bending extension at the two ends of longitudinal steel bar 2 is welded on stiffening ring 3, and longitudinal steel bar 2 is arranged around steel pipe body 5 interval; Be fixed with the circumferential reinforcement 1 around steel pipe body 5 inside described longitudinal steel bar 2, this circumferential reinforcement 1 is arranged along steel pipe body 2 axially spaced-apart; Concrete has been built, in described circumferential reinforcement 1, longitudinal steel bar 2 and stiffening ring 3 are all wrapped in by concrete outside described steel pipe body 5.
The two ends of described longitudinal steel bar 2 are fixed on that one end near steel pipe body 5 on stiffening ring, that is, the reinforcing bar configured in external wrapping concrete is arranged near steel pipe body outer wall 4, when bearing internal water pressure, entirely descends steel lined reinforced concrete penstock structure stress condition good.
Further, bending extension, longitudinal steel bar 2 two ends height is less than the height of stiffening ring 3, so that the whole Transporting of shaping rear steel pipe.
Underground of the present utility model steel lined reinforced concrete penstock is when constructing, first processing and fabricating steel pipe body 5 fix stiffening ring 3 at steel pipe body 5 outer wall in factory, then between stiffening ring 3, " U " shape longitudinal steel bar 2 is welded, longitudinal steel bar 2 is near steel pipe body 5 outer wall, inside longitudinal steel bar 2, circumferential reinforcement 1 is fixed in colligation or spot welding afterwards, afterwards the steel pipe transmission of configuration reinforcement is entered tunnel, after-pouring concrete in place is by whole steel pipe body and outside reinforcing bar parcel.
Claims (4)
1. a underground steel lined reinforced concrete penstock, comprise the stiffening ring that steel pipe body and hoop interval are fixed on steel pipe body outer wall, it is characterized in that: between every two adjacent stiffening rings, be axially arranged with longitudinal steel bar along steel pipe body, the two ends of this longitudinal steel bar are fixed on stiffening ring, and longitudinal steel bar is arranged around steel pipe body interval; Be fixed with the circumferential reinforcement around steel pipe body inside described longitudinal steel bar, this circumferential reinforcement is arranged along steel pipe body axially spaced-apart; Concrete has been built, in described circumferential reinforcement, longitudinal steel bar and stiffening ring are all wrapped in by concrete outside described steel pipe body.
2. underground according to claim 1 steel lined reinforced concrete penstock, is characterized in that: the two ends of described longitudinal steel bar are fixed on that one end near steel pipe body on stiffening ring.
3. underground according to claim 1 steel lined reinforced concrete penstock, is characterized in that: described longitudinal steel bar is " U " shape.
4. underground according to claim 3 steel lined reinforced concrete penstock, is characterized in that: bending extension, longitudinal steel bar two ends height is less than the height of stiffening ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420489454.5U CN204025958U (en) | 2014-08-28 | 2014-08-28 | A kind of underground steel lined reinforced concrete penstock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420489454.5U CN204025958U (en) | 2014-08-28 | 2014-08-28 | A kind of underground steel lined reinforced concrete penstock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204025958U true CN204025958U (en) | 2014-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201420489454.5U Active CN204025958U (en) | 2014-08-28 | 2014-08-28 | A kind of underground steel lined reinforced concrete penstock |
Country Status (1)
| Country | Link |
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| CN (1) | CN204025958U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121683A (en) * | 2016-08-31 | 2016-11-16 | 中国水利水电第十四工程局有限公司 | A kind of tunnel penstock lower concrete constructing device |
| CN108426103A (en) * | 2018-05-10 | 2018-08-21 | 周敉 | A kind of UHPC-SS compound pipeline complex pipelines and preparation method thereof |
-
2014
- 2014-08-28 CN CN201420489454.5U patent/CN204025958U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121683A (en) * | 2016-08-31 | 2016-11-16 | 中国水利水电第十四工程局有限公司 | A kind of tunnel penstock lower concrete constructing device |
| CN108426103A (en) * | 2018-05-10 | 2018-08-21 | 周敉 | A kind of UHPC-SS compound pipeline complex pipelines and preparation method thereof |
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