CN2816542Y - Large-diameter plastic corrugated pipe for prestressed concrete vacuum slurry pressing - Google Patents
Large-diameter plastic corrugated pipe for prestressed concrete vacuum slurry pressing Download PDFInfo
- Publication number
- CN2816542Y CN2816542Y CN 200520078708 CN200520078708U CN2816542Y CN 2816542 Y CN2816542 Y CN 2816542Y CN 200520078708 CN200520078708 CN 200520078708 CN 200520078708 U CN200520078708 U CN 200520078708U CN 2816542 Y CN2816542 Y CN 2816542Y
- Authority
- CN
- China
- Prior art keywords
- corrugated
- rid
- wave line
- concrete
- line rib
- Prior art date
- 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.)
- Expired - Fee Related
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- 239000004033 plastic Substances 0.000 title claims abstract description 12
- 229920003023 plastic Polymers 0.000 title claims abstract description 12
- 239000011513 prestressed concrete Substances 0.000 title claims abstract description 9
- 239000002002 slurry Substances 0.000 title abstract description 6
- 239000004567 concrete Substances 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000004568 cement Substances 0.000 abstract description 4
- 230000000875 corresponding Effects 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 238000005536 corrosion prevention Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials 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xsOiMzQjQxNDMnID5GPC90ZXh0Pgo8dGV4dCB4PSc1OC4yJyB5PSc0MC4xJyBjbGFzcz0nYXRvbS0zJyBzdHlsZT0nZm9udC1zaXplOjhweDtmb250LXN0eWxlOm5vcm1hbDtmb250LXdlaWdodDpub3JtYWw7ZmlsbC1vcGFjaXR5OjE7c3Ryb2tlOm5vbmU7Zm9udC1mYW1pbHk6c2Fucy1zZXJpZjt0ZXh0LWFuY2hvcjpzdGFydDtmaWxsOiMzQjQxNDMnID5lPC90ZXh0Pgo8dGV4dCB4PSc3NS42JyB5PSc1MC42JyBjbGFzcz0nYXRvbS00JyBzdHlsZT0nZm9udC1zaXplOjhweDtmb250LXN0eWxlOm5vcm1hbDtmb250LXdlaWdodDpub3JtYWw7ZmlsbC1vcGFjaXR5OjE7c3Ryb2tlOm5vbmU7Zm9udC1mYW1pbHk6c2Fucy1zZXJpZjt0ZXh0LWFuY2hvcjpzdGFydDtmaWxsOiNFODQyMzUnID5PPC90ZXh0Pgo8L3N2Zz4K O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 210000002435 Tendons Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 206010018987 Haemorrhage Diseases 0.000 description 1
- 210000004080 Milk Anatomy 0.000 description 1
- 230000000740 bleeding Effects 0.000 description 1
- 231100000319 bleeding Toxicity 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
Abstract
The utility model discloses a large-diameter plastic corrugated pipe for prestressed-concrete vacuum press slurry. When a large-sized bridge beam constructs, in a post-tensioning bonding prestressed-concrete structure, the rust protection and the corrosion prevention of a prestressed rid can be realized by that cement slurry is filled into a pre-bury hole channel. At present, various homegrown plastic corrugated pipes can not achieve the technical requirements without the national standard, start to deform when the plastic corrugated pipes are buried with the depth of 1.5 m in the concrete, and can not pass through a steel strand bundle which is corresponding to the hole channel. The utility model is characterized in that pipe corrugated rids form spiral installation, the diameter of the corrugated pipe is 100 to 120 m m, the spacing of each corrugated rid is 15 to 20 m m, the height of each corrugated rid is 5 to 8 m m, the width of each corrugated rid is 10 to 12 m m and the wall thickness is 3 to 5 m m. The external form of each corrugated rid forms a semicircular shape, and an included angle of the corrugated rids and the radical direction is 7 to 10 DEG. The rigidity of the annular direction of the utility model is larger or equal to 12 k p a, the large-diameter plastic corrugated pipe which is buried within 6 m in the concrete has the deformation which is less than 6 m m, and the steel strand bundle which is corresponding to the hole channel can pass through easily.
Description
Technical field
The utility model belongs to structural material, is specifically related to a kind of prestressed concrete vacuum grouting large-bore plastics bellows that is used for, and belongs to building materials field.
Background technique
In construction large bridge when construction particularly, in the post-tensioning prestress with bond concrete structure, the antirust, anticorrosion of acting in conjunction between prestressed tendon and the concrete and prestressed tendon realized by filling cement slurry in the pre-buried duct, traditional way is to adopt the common grouting method to be in the milk, promptly under 0.5～0.7Mpa pressure, thin cement slurry is pressed into the duct, cement slurry segregation, bleeding, grouting leakiness, stiff aftershrinkage generation hole take place in this way easily, stay serious potential safety hazard.The vacuum aid grouting technology is the grouting new process that Switzerland VSL company releases, and can increase the plumpness and the density of grouting, improves durability of structures greatly.But this technology is very high to technology and material requirements, particularly require duct material seal degree good, thereby influence grouting quality because tightness directly has influence on degree of vacuum, metal bellows Yin Qiyi does not get rusty, easily is corroded, sealing is poor, flexible and can not satisfy the requirement of vacuum grouting technology.The various plastic film capicitors of domestic production at present are because of no NBS and industry standard, each manufacturer makes by national plastic article standard, so can not reach the technical requirements of grouting new process, particularly existing large-bore plastics bellows, hoop rigidity is all between 6.0～7.0kpa, in concrete, begin distortion during buried depth 1.5m, increase along with buried depth, amount of deformation strengthens, when buried depth is above to 2m, amount of deformation can't pass the steel wire bundle in corresponding duct greater than 3cm, thereby causes accident resulting from poor quality of projects.
The model utility content
The purpose of this utility model provides a kind of prestressed concrete vacuum grouting large-bore plastics bellows that is used for.
Its major technique feature of the utility model is:
Tube wave line rib screw arrangement, the bellows bore is 100-120mm, tube wave line rib spacing 15-20mm, tube wave line rib height 5-8mm, tube wave line rib width 10-12mm, thickness of pipe wall 3-5mm, tube wave line rib external form is semi-circular, and tube wave line rib and caliber are the 7-10 degree to angle.
The utility model is owing to select rational physical dimension and shape and structure for use, and its hoop rigidity can reach more than the 12kpa, and bent toughness is good, is specially adapted to the duct pore-forming of the prestressed concrete vacuum grouting of buried depth 3-6m.
Description of drawings
Accompanying drawing 1 is a plan view of the present utility model.
Accompanying drawing 2 is a side cutaway view of the present utility model.
Description of reference numerals is as follows: pipe outer wall 1, inner tube wall 2, tube wave line rib 3.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail:
Tube wave line rib screw arrangement, the bellows bore is 120mm, tube wave line rib (3) spacing 20mm, pipe outer wall (1) is apart from tube wave line rib (3) height 5mm, tube wave line rib (3) width 10mm, pipe outer wall (1) and inner tube wall (2) spacing 3mm, tube wave line rib (3) external form is semi-circular, tube wave line rib (3) is 10 degree with caliber to angle, and present embodiment can be selected for use high density polyethylene (HDPE) once to suppress and form.
The utility model hoop rigidity 〉=12kpa, in concrete buried depth 6m with the internal strain amount less than 6mm, the steel wire bundle in corresponding duct can pass through smoothly, progressively implementation along with vacuum grouting technology, the plastic film capicitor of heavy caliber high-strength will obtain a large amount of application, have brilliant market developing prospect.
Claims (2)
1. one kind is used for prestressed concrete vacuum grouting large-bore plastics bellows, it is characterized in that: tube wave line rib screw arrangement, the bellows bore is 100-120mm, tube wave line rib (3) spacing 15-20mm, tube wave line rib (3) height 5-8mm, tube wave line rib (3) width 10-12mm, thickness of pipe wall 3-5mm, tube wave line rib (3) external form is semi-circular, and tube wave line rib (3) is the 7-10 degree with caliber to angle.
2. a kind of prestressed concrete vacuum grouting large-bore plastics bellows that is used for according to claim 1, it is characterized in that: tube wave line rib screw arrangement, the bellows bore is 120mm, tube wave line rib (3) spacing 20mm, pipe outer wall (1) is apart from tube wave line rib (3) height 5mm, tube wave line rib (3) width 10mm, pipe outer wall (1) and inner tube wall (2) spacing 3mm, tube wave line rib (3) external form is semi-circular, and tube wave line rib (3) is 10 degree with caliber to angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520078708 CN2816542Y (en) | 2005-04-30 | 2005-04-30 | Large-diameter plastic corrugated pipe for prestressed concrete vacuum slurry pressing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520078708 CN2816542Y (en) | 2005-04-30 | 2005-04-30 | Large-diameter plastic corrugated pipe for prestressed concrete vacuum slurry pressing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2816542Y true CN2816542Y (en) | 2006-09-13 |
Family
ID=36996351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520078708 Expired - Fee Related CN2816542Y (en) | 2005-04-30 | 2005-04-30 | Large-diameter plastic corrugated pipe for prestressed concrete vacuum slurry pressing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2816542Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008067691A1 (en) | 2006-12-08 | 2008-06-12 | Zte Corporation | Method for automatic frequency correction of a mobile terminal and the system thereof |
| CN101818547A (en) * | 2010-04-09 | 2010-09-01 | 北京交通大学 | Corrugated pipe pore-forming device for enlarging prestressed aperture of cross section |
| CN101818567A (en) * | 2010-04-01 | 2010-09-01 | 北京交通大学 | Rubber bar pore-forming device for enlarging prestressed aperture of cross section |
| CN105040984A (en) * | 2015-07-03 | 2015-11-11 | 天津鑫坤泰预应力专业技术有限公司 | Bamboo-joint-shaped prestress flat opening plastic pipe |
-
2005
- 2005-04-30 CN CN 200520078708 patent/CN2816542Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008067691A1 (en) | 2006-12-08 | 2008-06-12 | Zte Corporation | Method for automatic frequency correction of a mobile terminal and the system thereof |
| CN101818567A (en) * | 2010-04-01 | 2010-09-01 | 北京交通大学 | Rubber bar pore-forming device for enlarging prestressed aperture of cross section |
| CN101818547A (en) * | 2010-04-09 | 2010-09-01 | 北京交通大学 | Corrugated pipe pore-forming device for enlarging prestressed aperture of cross section |
| CN105040984A (en) * | 2015-07-03 | 2015-11-11 | 天津鑫坤泰预应力专业技术有限公司 | Bamboo-joint-shaped prestress flat opening plastic pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| C14 | Grant of patent or utility model | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA RAILWAY FIRST BUREAU GROUP CO., LTD.; PATEN Free format text: FORMER OWNER: THE FOURTH ENGINEERING CO., LTD. OF CHINA RAILWAY FIRST GROUP Effective date: 20080523 |
|
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Effective date of registration: 20080523 Address after: No. 1, Yanta North Road, Xi'an, Shaanxi, zip code: 710054 Co-patentee after: No.4 Engineering Co., Ltd., Zhongtie Co., Ltd., Bureau Group Patentee after: China Railway Group Co., Ltd. Address before: No 8, Yuquan West Road, Xianyang, Shaanxi Province, 712000 Patentee before: No.4 Engineering Co., Ltd., Zhongtie Co., Ltd., Bureau Group |
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