CN106192760A - A kind of installation method of prestressed anchor assembly - Google Patents
A kind of installation method of prestressed anchor assembly Download PDFInfo
- Publication number
- CN106192760A CN106192760A CN201610585224.2A CN201610585224A CN106192760A CN 106192760 A CN106192760 A CN 106192760A CN 201610585224 A CN201610585224 A CN 201610585224A CN 106192760 A CN106192760 A CN 106192760A
- Authority
- CN
- China
- Prior art keywords
- anchor assembly
- prestressed anchor
- installation method
- reinforcing steel
- presstressed reinforcing
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to technical field of bridge engineering, disclose the installation method of a kind of prestressed anchor assembly, including step: a. pipe laying drilling；B. pouring concrete；C. pipe is taken out；D. muscle stretch-draw is worn in maintenance；E. anchor；F. it is in the milk；Before carrying out step f, anchorage and presstressed reinforcing steel are carried out preservative treatment.It is simple to operate, fixation, anchorage and presstressed reinforcing steel is carried out preservative treatment, is effectively prevented the corrosion of prestressed anchor assembly, it is ensured that its serviceability, extend service life.
Description
Technical field
The present invention relates to technical field of bridge engineering, particularly relate to the installation method of a kind of prestressed anchor assembly.
Background technology
Prestressed anchor is widely used in highway bridge, railroad bridge, city intersection, the most normal in bridge construction
See, install location, then casting concrete in advance, be embedded in the two ends of concrete, namely two terminations of corrugated tube, be for
The Stabilization of jack during stretch-draw and the end face that arranges.The installation of existing prestressed anchor is commonly used grouting and is prevented reinforcing bar
Get rusty, but owing to the performance of mortar differs, often occur that the problems such as pore, anchorage and reinforcing bar get rusty easily equally, to such an extent as to fall
The low service life of anchorage.
Summary of the invention
It is desirable to provide the installation method of a kind of prestressed anchor assembly, well solve the problems referred to above, its operation
Simply, fixation, anchorage and presstressed reinforcing steel are carried out preservative treatment, is effectively prevented the corrosion of prestressed anchor assembly,
Ensure that its serviceability, extend service life.
The technical scheme is that the installation method of a kind of prestressed anchor assembly, including step:
A. pipe laying drilling；
B. pouring concrete；
C. pipe is taken out；
D. muscle stretch-draw is worn in maintenance；
E. anchor；
F. it is in the milk.
Further, when concrete reaches design strength more than 75%, then step d is carried out.
Further, before carrying out step f, anchorage and presstressed reinforcing steel are carried out preservative treatment.
Further, described preservative treatment is brushing corrosion-inhibiting coating, and described corrosion-inhibiting coating is epoxy novolac coating.
Further, in step e during anchorage installation, anchor slab should align, and intermediate plate should be urgent, and sheet position is wanted uniformly.
Further, in step d, presstressed reinforcing steel is when stretch-draw, first should be loaded onto measurement the first of stretch value starting point from zero and draw
Power, then hierarchical loading is to required stretching force.
Further, the cutting of presstressed reinforcing steel in step d, use abrasive cutoff saw cutting.
Further, in described step f, duct grouting requires closely knit, and strength of cement grout grade is not lower than C30, grouting
Front duct should moisten, cleaning, and grouting should carry out the most equably, must not interrupt, and answers aerofluxus clear and coherent, in case of duct blocks, and must
Grouting mouth must be changed, but first time priming charge mud must be discharged, in order to avoid having gas to deposit between twice priming charge mud
, after filling duct closed grate hole, preferably it is further continued for being forced into 0.5-0.6Mpa, the most re-closed grout hole.
The invention has the beneficial effects as follows:
1, anchorage and presstressed reinforcing steel are carried out preservative treatment, it is therefore prevented that the corrosion of prestressed anchor assembly, it is ensured that it makes
By performance, extend service life；
2, after preservative treatment, prestressed anchor assembly is carried out grouting treatment, prevent the generation of corrosion further；
3, the inventive method is reasonable, and equipment is simple, it is not necessary to stretching bed seat, produces flexibly, it is adaptable to showing of large-scale component
Field construction.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below the present invention is carried out further
Describe in detail.
The invention provides the installation method of a kind of prestressed anchor assembly, including step:
A. pipe laying drilling；
B. pouring concrete；
C. pipe is taken out；
D. muscle stretch-draw is worn in maintenance, when concrete reaches design strength more than 75%, then carries out step d, and presstressed reinforcing steel exists
During stretch-draw, first should be loaded onto the initial tension measuring stretch value starting point from zero, then hierarchical loading is to required stretching force, prestressing force
The cutting of muscle, uses abrasive cutoff saw cutting；
E. anchoring, anchor slab should align, and intermediate plate should be urgent, and sheet position is wanted uniformly；
F. being in the milk, before carrying out step f, anchorage and presstressed reinforcing steel are carried out preservative treatment, preservative treatment is brushing anticorrosion
Coating, corrosion-inhibiting coating is epoxy novolac coating, and during grouting, duct grouting requires closely knit, and strength of cement grout grade is not lower than
C30, front duct of being in the milk should moisten, cleaning, and grouting should carry out the most equably, must not interrupt, and answers aerofluxus clear and coherent, such as duct
Blocking, it is necessary to change grouting mouth, but first time priming charge mud must be discharged, in order to avoid having between twice priming charge mud
Gas exists, and after filling duct closed grate hole, is preferably further continued for being forced into 0.5-0.6Mpa, the most re-closed grout hole.
The present invention has carried out the preservative treatment of bilayer to anchorage and presstressed reinforcing steel, is first in anchorage and presstressed reinforcing steel appearance
Face carries out preservative treatment, brushing corrosion-inhibiting coating, and corrosion-inhibiting coating is epoxy novolac coating, it is therefore prevented that the rust of prestressed anchor assembly
Erosion, it is ensured that its serviceability, extends service life；After preservative treatment, prestressed anchor assembly is being carried out at grouting
Reason, prevents the generation of corrosion further；
The inventive method is reasonable, and equipment is simple, simple to operate, fixation, it is not necessary to stretching bed seat, produces flexibly, has
The corrosion preventing prestressed anchor assembly of effect, it is ensured that its serviceability, extends service life, it is adaptable to large-scale component
Site operation.
Certainly, the present invention also can have other various embodiments, in the case of without departing substantially from present invention spirit and essence thereof, ripe
Know those skilled in the art and can make various corresponding change and deformation according to the present invention, but these change and deformation accordingly
All should belong to the protection domain of appended claims of the invention.
Claims (8)
1. the installation method of a prestressed anchor assembly, it is characterised in that include step:
A. pipe laying drilling；
B. pouring concrete；
C. pipe is taken out；
D. muscle stretch-draw is worn in maintenance；
E. anchor；
F. it is in the milk.
The installation method of prestressed anchor assembly the most according to claim 1, it is characterised in that: reach design at concrete
During intensity more than 75%, then carry out step d.
The installation method of prestressed anchor assembly the most according to claim 1, it is characterised in that: before carrying out step f, right
Anchorage and presstressed reinforcing steel carry out preservative treatment.
The installation method of prestressed anchor assembly the most according to claim 3, it is characterised in that: described preservative treatment is for being coated with
Brush corrosion-inhibiting coating, described corrosion-inhibiting coating is epoxy novolac coating.
The installation method of prestressed anchor assembly the most according to claim 1, it is characterised in that: anchorage installation in step e
Time, anchor slab should align, and intermediate plate should be urgent, and sheet position is wanted uniformly.
The installation method of prestressed anchor assembly the most according to claim 1, it is characterised in that: presstressed reinforcing steel in step d
When stretch-draw, first should be loaded onto the initial tension measuring stretch value starting point from zero, then hierarchical loading is to required stretching force.
The installation method of prestressed anchor assembly the most according to claim 1, it is characterised in that: presstressed reinforcing steel in step d
Cutting, use abrasive cutoff saw cutting.
The installation method of prestressed anchor assembly the most according to claim 1, it is characterised in that: in described step f, duct
Grouting requires closely knit, and strength of cement grout grade is not lower than C30, and front duct of being in the milk should moisten, cleaning, and grouting should the most equably
Carry out, must not interrupt, and answer aerofluxus clear and coherent, in case of duct blocks, it is necessary to change grouting mouth, but must be by first time priming charge
Mud is discharged, in order to avoid with the presence of gas between twice priming charge mud, after filling duct closed grate hole, being preferably further continued for
It is forced into 0.5-0.6Mpa, the most re-closed grout hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610585224.2A CN106192760A (en) | 2016-07-22 | 2016-07-22 | A kind of installation method of prestressed anchor assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610585224.2A CN106192760A (en) | 2016-07-22 | 2016-07-22 | A kind of installation method of prestressed anchor assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106192760A true CN106192760A (en) | 2016-12-07 |
Family
ID=57492317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610585224.2A Pending CN106192760A (en) | 2016-07-22 | 2016-07-22 | A kind of installation method of prestressed anchor assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106192760A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003336399A (en) * | 2002-05-20 | 2003-11-28 | Japan Life Kk | Cover for grout for pc steel-wire fixture |
| CN1699709A (en) * | 2004-05-19 | 2005-11-23 | 柳州欧维姆机械股份有限公司 | Prestressed anchoring system by high tensile steel wire pretension and construction method thereof |
| CN102392415A (en) * | 2011-10-26 | 2012-03-28 | 柳州欧维姆机械股份有限公司 | Vertical prestressed anchorage system and construction method thereof |
| CN102518042A (en) * | 2011-12-19 | 2012-06-27 | 衡水橡胶股份有限公司 | Method of constructing transverse connection prestressed tendons of T-shaped simply-supported concrete composite bridge |
| CN103603273A (en) * | 2013-11-04 | 2014-02-26 | 沈阳市政集团有限公司 | Method for grouting construction of prestressed pipe |
-
2016
- 2016-07-22 CN CN201610585224.2A patent/CN106192760A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003336399A (en) * | 2002-05-20 | 2003-11-28 | Japan Life Kk | Cover for grout for pc steel-wire fixture |
| CN1699709A (en) * | 2004-05-19 | 2005-11-23 | 柳州欧维姆机械股份有限公司 | Prestressed anchoring system by high tensile steel wire pretension and construction method thereof |
| CN102392415A (en) * | 2011-10-26 | 2012-03-28 | 柳州欧维姆机械股份有限公司 | Vertical prestressed anchorage system and construction method thereof |
| CN102518042A (en) * | 2011-12-19 | 2012-06-27 | 衡水橡胶股份有限公司 | Method of constructing transverse connection prestressed tendons of T-shaped simply-supported concrete composite bridge |
| CN103603273A (en) * | 2013-11-04 | 2014-02-26 | 沈阳市政集团有限公司 | Method for grouting construction of prestressed pipe |
Non-Patent Citations (2)
| Title |
|---|
| 王凤宝主编: "《施工员（土建）》", 30 April 2008 * |
| 谭光华: "后张法有粘结预应力屋面施工技术", 《城市建设理论研究（电子版）》 * |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161207 |