CN103911952B - Prestressed reinforcement bellows positioning construction method - Google Patents
Prestressed reinforcement bellows positioning construction method Download PDFInfo
- Publication number
- CN103911952B CN103911952B CN201410120303.7A CN201410120303A CN103911952B CN 103911952 B CN103911952 B CN 103911952B CN 201410120303 A CN201410120303 A CN 201410120303A CN 103911952 B CN103911952 B CN 103911952B
- Authority
- CN
- China
- Prior art keywords
- prestressed reinforcement
- bellows
- construction method
- positioning
- positioning construction
- 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.)
- Active
Links
Landscapes
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
A kind of prestressed reinforcement bellows positioning construction method, comprise: measurement and the placement of first carrying out prestressed reinforcement position, then prestressed reinforcement and bellows are positioned place and bottom fix, bottom locate after prestressed reinforcement and bellows upper end be fixed on the positioning by prestressed reinforcement locating rack; To be sleeved on prestressed reinforcement with internal thread sealing positioning sleeve and to be screwed between itself and bellows, prestressed reinforcement and bellows are kept on the same axis; Support welds the reinforcing that the Reinforcing Steel Bar On Wave line pipe intersected in length and breadth carries out differing heights.This prestressed reinforcement bellows positioning construction method efficiency of construction is high, with low cost, it adopts constructability and can realize the internal thread sealing positioning sleeve of precise positioning and the firm stable method for positioning and fixing of bellows, effectively can ensure the Stability and veracity of relative position between prestressed reinforcement and large diameter bellows, make to be in all the time on same axis between bellows and prestressed reinforcement.
Description
Technical field
The invention belongs to the construction technology of precast unit, be specifically related to the positioning construction method between prestressed reinforcement and bellows in a kind of large scale prefabricated bridge pier.
Background technology
Along with marine and waters viaduct construction technology development and day by day increase, the use of large-sized reinforced concrete prefabricated component is more and more.For precast pier and other abutment prefabricated components, need in reinforced concrete precast member, arrange many prestressed steel bars, and at the outside of prestressed steel bar suit major diameter bellows, need between major diameter bellows and rod iron to leave certain void content, for the mud jacking sealing off and covering anchorage construction after stretch-draw.Only have and need when mounted to ensure bellows and prestressing force rod on the same axis, the void content between major diameter bellows and rod iron could meet stretch-draw and prestressing force life requirement.But due to the impact of reinforced concrete construction, effectively stability contorting cannot be carried out to the void content between major diameter bellows and prestressed steel bar.
Summary of the invention
The invention provides the prestressed reinforcement bellows positioning construction method that a kind of efficiency of construction is high, with low cost, it adopts constructability and can realize the internal thread sealing positioning sleeve of precise positioning and the firm stable method for positioning and fixing of bellows, effectively can ensure the Stability and veracity of relative position between prestressed reinforcement and large diameter bellows, make to be in all the time on same axis between bellows and prestressed reinforcement.
The technical solution adopted in the present invention is as follows:
A kind of prestressed reinforcement bellows positioning construction method, is characterized in that described positioning construction method comprises:
First carry out measurement and the placement of prestressed reinforcement position, then prestressed reinforcement and bellows are positioned place and bottom fix, bottom locate after prestressed reinforcement and bellows upper end be fixed on the positioning by prestressed reinforcement locating rack;
To be sleeved on prestressed reinforcement with internal thread sealing positioning sleeve and to be screwed between itself and bellows, prestressed reinforcement and bellows are kept on the same axis; Support welds the reinforcing that the Reinforcing Steel Bar On Wave line pipe intersected in length and breadth carries out differing heights.
In detailed description of the invention, described positioning construction method comprises further:
The bottom bracket of prestressed reinforcement assembling is measured and determines the exact position of prestressed reinforcement, then to carry out being welded and fixed bottom prestressed reinforcement between fixed end ground tackle and bracket.
In one embodiment, described prestressed reinforcement locating rack is the truss that lifting is arranged on prestressed reinforcement upper end, and prestressed reinforcement locating rack arranges locating hole according to prestressed reinforcement rigging position, and the location of being carried out prestressed reinforcement by this locating hole is fixed.
In one embodiment, described positioning construction method comprises further:
At the downward vertical lifting stiff skeleton of prestressed reinforcement locating rack, stiff skeleton is the skeleton body that the transverse truss of formed steel construction and longitudiual truss are connected to form, and is connected and fixed between the bellows of prestressed reinforcement and suit and stiff skeleton.
In one embodiment, described positioning construction method comprises further:
Internal thread sealing positioning sleeve to be assemblied on prestressed reinforcement by its inner sleeve and to stretch in bellows, and bellows position point is in bellows, and the Contact of fastener of bellows portion and bellows is arranged, and prestressed reinforcement and bellows are coaxially arranged.
In another embodiment, described positioning construction method comprises further:
After internal thread sealing positioning sleeve is installed, be screwed tapered setscrew nut on the top of prestressed reinforcement, this tapered setscrew nut is located and is made the axis of prestressed reinforcement be positioned at the center of locating hole in locating hole.
In one embodiment, described positioning construction method comprises further:
When the curtailment of prestressed reinforcement is to carry out assembling with the locating hole of prestressed reinforcement locating rack, connecting rod is adopted to carry out the connection of prestressed reinforcement, connecting rod has the locating hole department of assembly of mating with prestressed reinforcement, and the bottom of connecting rod has threaded coupling sleeve for connecting the end of prestressed reinforcement.
In one embodiment, described positioning construction method comprises further:
Described support is stiff skeleton, the stiff skeleton outside bellows adopts steel bar welding be connected into groined type reinforcing body, carries out the reinforcing of vertical direction by bellows differing heights.
In another embodiment, described positioning construction method comprises further:
Finally, carry out dry joint template installation, first determine prestressed reinforcement and the bellows upper end position in stem grafting seam, then reinforce bellows roof reinforcement according to location, after removing dry joint template, carry out concreting.
This prestressed reinforcement bellows positioning construction method is measured and orientation assemble by the anchor point carrying out prestressed reinforcement location and bellows on bottom bracket, carry out the coaxial accurately location of prestressed reinforcement and bellows by the locating hole of top prestressed reinforcement locating rack more fixing, the upper and lower side realizing the bellows of prestressed reinforcement and suit is accurately located fixing.Bellows vertical direction adopts groined type steel reinforcing locate, position on stiff skeleton.So reinforced by the location of high-precision prestressed reinforcement and bellows, realize arranging according to the location of design attitude, the relative tertiary location of prestressed reinforcement in bellows is evenly accurate.This construction method step is simple, mutually can check location, ensure that prestressed reinforcement and bellows are located accurate, efficient and normative between each operation.
Beneficial effect of the present invention is, this prestressed reinforcement bellows positioning construction method efficiency of construction is high, with low cost, it adopts constructability and can realize the internal thread sealing positioning sleeve of precise positioning and the firm stable method for positioning and fixing of bellows, effectively can ensure the Stability and veracity of relative position between prestressed reinforcement and large diameter bellows, make to be in all the time on same axis between bellows and prestressed reinforcement.
Below in conjunction with detailed description of the invention, the invention will be further elaborated.
Detailed description of the invention
This prestressed reinforcement bellows positioning construction method can be used for the construction of laying prestressed reinforcement in precast pier, the specification of prestressed reinforcement is Φ 75mm, the bellows that prestressed reinforcement is set with outward is 115mm/130mm diameter specifications, about 2cm pore volume is left, for the mud jacking sealing off and covering anchorage construction after stretch-draw between bellows and prestressed reinforcement.
This prestressed reinforcement bellows positioning construction method is divided into substantially locates and once reinforces for three times.
Orientate the location of prestressed reinforcement and bellows lower end rigging position for the first time as, first carry out measurement and the placement of prestressed reinforcement position, then prestressed reinforcement and bellows are positioned placement and bottom fix, the bottom bracket of prestressed reinforcement assembling is measured and determines the exact position of prestressed reinforcement, then to carry out being welded and fixed bottom prestressed reinforcement between fixed end ground tackle and bracket.
Second time orientates the location on prestressed reinforcement and bellows top as, and the prestressed reinforcement behind location, bottom and bellows upper end are fixed on the positioning by prestressed reinforcement locating rack; Prestressed reinforcement locating rack is the truss that lifting is arranged on prestressed reinforcement upper end, and prestressed reinforcement locating rack arranges locating hole according to prestressed reinforcement rigging position, and the location of being carried out prestressed reinforcement by this locating hole is fixed.To be sleeved on prestressed reinforcement with internal thread sealing positioning sleeve and to be screwed between itself and bellows, prestressed reinforcement and bellows are kept on the same axis; Internal thread sealing positioning sleeve to be assemblied on prestressed reinforcement by its inner sleeve and to stretch in bellows, and bellows position point is in bellows, and the Contact of fastener of bellows portion and bellows is arranged, and prestressed reinforcement and bellows are coaxially arranged.After internal thread sealing positioning sleeve is installed, be screwed tapered setscrew nut on the top of prestressed reinforcement, this tapered setscrew nut is located and is made the axis of prestressed reinforcement be positioned at the center of locating hole in locating hole.When the curtailment of prestressed reinforcement is to carry out assembling with the locating hole of prestressed reinforcement locating rack, connecting rod is adopted to carry out the connection of prestressed reinforcement, connecting rod has the locating hole department of assembly of mating with prestressed reinforcement, and the bottom of connecting rod has threaded coupling sleeve for connecting the end of prestressed reinforcement.
Orientate the location of dry joint template for the third time as, finally carry out dry joint template installation, first determine prestressed reinforcement and the bellows upper end position in stem grafting seam, then reinforce bellows roof reinforcement according to location, after removing dry joint template, carry out concreting.
One reinforces and refers to weld the reinforcing that the Reinforcing Steel Bar On Wave line pipe intersected in length and breadth carries out differing heights on support.Support is stiff skeleton, the stiff skeleton outside bellows adopts steel bar welding be connected into groined type reinforcing body, carries out the reinforcing of vertical direction by bellows differing heights.At the downward vertical lifting stiff skeleton of prestressed reinforcement locating rack, stiff skeleton is the skeleton body that the transverse truss of formed steel construction and longitudiual truss are connected to form, and is connected and fixed between the bellows of prestressed reinforcement and suit and stiff skeleton.
Claims (9)
1. a prestressed reinforcement bellows positioning construction method, is characterized in that described positioning construction method comprises:
First carry out measurement and the placement of prestressed reinforcement position, then prestressed reinforcement and bellows are positioned place and bottom fix, bottom locate after prestressed reinforcement and bellows upper end be fixed on the positioning by prestressed reinforcement locating rack;
To be sleeved on prestressed reinforcement with internal thread sealing positioning sleeve and to be screwed between itself and bellows, prestressed reinforcement and bellows are kept on the same axis; Support welds the reinforcing that the Reinforcing Steel Bar On Wave line pipe intersected in length and breadth carries out differing heights.
2. prestressed reinforcement bellows positioning construction method according to claim 1, is characterized in that described positioning construction method comprises further:
The bottom bracket of prestressed reinforcement assembling is measured and determines the exact position of prestressed reinforcement, then to carry out being welded and fixed bottom prestressed reinforcement between fixed end ground tackle and bracket.
3. prestressed reinforcement bellows positioning construction method according to claim 1, it is characterized in that described prestressed reinforcement locating rack is the truss that lifting is arranged on prestressed reinforcement upper end, prestressed reinforcement locating rack arranges locating hole according to prestressed reinforcement rigging position, and the location of being carried out prestressed reinforcement by this locating hole is fixed.
4. prestressed reinforcement bellows positioning construction method according to claim 1, is characterized in that described positioning construction method comprises further:
At the downward vertical lifting stiff skeleton of prestressed reinforcement locating rack, stiff skeleton is the skeleton body that the transverse truss of formed steel construction and longitudiual truss are connected to form, and is connected and fixed between the bellows of prestressed reinforcement and suit and stiff skeleton.
5. prestressed reinforcement bellows positioning construction method according to claim 1, is characterized in that described positioning construction method comprises further:
Internal thread sealing positioning sleeve to be assemblied on prestressed reinforcement by its inner sleeve and to stretch in bellows, bellows position point in internal thread sealing positioning sleeve is in bellows, fastener of bellows portion in internal thread sealing positioning sleeve and the Contact of bellows are arranged, and prestressed reinforcement and bellows are coaxially arranged.
6. prestressed reinforcement bellows positioning construction method according to claim 1, is characterized in that described positioning construction method comprises further:
After internal thread sealing positioning sleeve is installed, be screwed tapered setscrew nut on the top of prestressed reinforcement, this tapered setscrew nut is located and is made the axis of prestressed reinforcement be positioned at the center of locating hole in locating hole.
7. prestressed reinforcement bellows positioning construction method according to claim 6, is characterized in that described positioning construction method comprises further:
When the curtailment of prestressed reinforcement is to assemble with the locating hole of prestressed reinforcement locating rack, connecting rod is adopted to carry out the connection of prestressed reinforcement, connecting rod has the locating hole department of assembly of mating with prestressed reinforcement, and the bottom of connecting rod has threaded coupling sleeve for connecting the end of prestressed reinforcement.
8. prestressed reinforcement bellows positioning construction method according to claim 1, is characterized in that described positioning construction method comprises further:
Described support is stiff skeleton, the stiff skeleton outside bellows adopts steel bar welding be connected into groined type reinforcing body, carries out the reinforcing of vertical direction by bellows differing heights.
9. prestressed reinforcement bellows positioning construction method according to claim 1, is characterized in that described positioning construction method comprises further:
Finally, carry out dry joint template installation, first determine prestressed reinforcement and the bellows upper end position in stem grafting seam, then according to location, bellows top is reinforced, after removing dry joint template, carry out concreting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410120303.7A CN103911952B (en) | 2014-03-28 | 2014-03-28 | Prestressed reinforcement bellows positioning construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410120303.7A CN103911952B (en) | 2014-03-28 | 2014-03-28 | Prestressed reinforcement bellows positioning construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103911952A CN103911952A (en) | 2014-07-09 |
| CN103911952B true CN103911952B (en) | 2016-01-20 |
Family
ID=51037923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410120303.7A Active CN103911952B (en) | 2014-03-28 | 2014-03-28 | Prestressed reinforcement bellows positioning construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103911952B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590195A (en) * | 2018-05-10 | 2018-09-28 | 五冶集团上海有限公司 | A kind of holder and application method for fixing silo sliding formwork prestressing force bellows |
| CN108748648B (en) * | 2018-05-25 | 2019-10-11 | 中铁建大桥工程局集团第一工程有限公司 | A kind of elongated prestressed pore passage positioning device in the prefabricated longitudinal direction of short line casting box girder segment and construction method |
| CN109162206A (en) * | 2018-10-30 | 2019-01-08 | 中国十七冶集团有限公司 | A kind of constructing structure and its construction method of cast-in-situ box girder prestressed strand |
| CN109898546A (en) * | 2019-03-25 | 2019-06-18 | 五冶集团上海有限公司 | A kind of raw material mill vertical prestressing steel strand wires bellows mounting and fixing support |
| CN114808729B (en) * | 2022-05-16 | 2023-06-02 | 中铁七局集团有限公司 | Positioning device for pre-buried pre-stress corrugated pipe in box girder |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100054889A (en) * | 2008-11-15 | 2010-05-26 | 고려대학교 산학협력단 | Development of fabricated internally confined hollow concrete filled tube using corrugated tube |
| CN202055414U (en) * | 2011-03-29 | 2011-11-30 | 中国一冶集团有限公司 | Fast positioning device for bellows in pre-stress box girder |
| 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 |
| CN102587582A (en) * | 2012-03-09 | 2012-07-18 | 杭州图强工程材料有限公司 | Hollow self-balance pre-stress steel bar and pre-stress tensioning clamp |
| CN102747690A (en) * | 2012-07-20 | 2012-10-24 | 中交二公局第三工程有限公司 | Grouting construction method for vertical finish-rolling threaded steel U-shaped communicating tube |
| CN103362310A (en) * | 2013-08-06 | 2013-10-23 | 天津鑫坤泰预应力专业技术有限公司 | Tractor for finished steel strand and threading method of finished steel strand |
-
2014
- 2014-03-28 CN CN201410120303.7A patent/CN103911952B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100054889A (en) * | 2008-11-15 | 2010-05-26 | 고려대학교 산학협력단 | Development of fabricated internally confined hollow concrete filled tube using corrugated tube |
| CN202055414U (en) * | 2011-03-29 | 2011-11-30 | 中国一冶集团有限公司 | Fast positioning device for bellows in pre-stress box girder |
| 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 |
| CN102587582A (en) * | 2012-03-09 | 2012-07-18 | 杭州图强工程材料有限公司 | Hollow self-balance pre-stress steel bar and pre-stress tensioning clamp |
| CN102747690A (en) * | 2012-07-20 | 2012-10-24 | 中交二公局第三工程有限公司 | Grouting construction method for vertical finish-rolling threaded steel U-shaped communicating tube |
| CN103362310A (en) * | 2013-08-06 | 2013-10-23 | 天津鑫坤泰预应力专业技术有限公司 | Tractor for finished steel strand and threading method of finished steel strand |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103911952A (en) | 2014-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103911952B (en) | Prestressed reinforcement bellows positioning construction method | |
| CN105804241A (en) | Single-layer prefabricated assembly type reinforced concrete beam-column joint | |
| CN103362119B (en) | Large-size rebar cage exempt from the method that is welded to connect and syndeton | |
| CN203639005U (en) | Reinforcing device of tower crane | |
| CN109706956A (en) | A kind of rectangular built-in fitting device with circular hole | |
| CN105926427A (en) | Pier and beam transitional connecting structure | |
| CN105544742A (en) | Side column node connection structure of fabricated circular steel tube concrete special-shaped column and construction method of side column node connection structure | |
| CN205369544U (en) | Assembled circular steel tube concrete dysmorphism post side column nodal connection structure | |
| CN110424529B (en) | Prefabricated cantilever beam balcony and construction method | |
| CN201567684U (en) | Transition lug for connecting box-type steel reinforced concrete column | |
| CN105714934A (en) | Node connecting structure of assembled circular concrete-filled steel tube special-shaped column-in-column and construction method of node connecting structure | |
| CN205369546U (en) | Assembled circular steel tube concrete dysmorphism post center pillar nodal connection structure | |
| CN104196023B (en) | A kind of using method of the concrete precast pipe pile pile top of band mechanical connecting device | |
| CN203403402U (en) | Upright pile | |
| CN105569192A (en) | Prefabricated type circular steel pipe concrete special-shaped column corner post joint connection structure and construction method thereof | |
| CN202611223U (en) | Recyclable bolt type scaffold wall connection piece | |
| CN203160540U (en) | Novel precast column | |
| CN205502623U (en) | Building structure consolidates and uses connecting device | |
| CN204690776U (en) | A kind of reinforced concrete composite structure huge plug-in type suspension column structure | |
| CN206815540U (en) | A kind of positioner for concrete structure built-in fitting | |
| CN103161262A (en) | Construction method of steel pipe column and used column feet structure | |
| CN204876084U (en) | Steel column foot crab -bolt fixed bolster | |
| CN201713940U (en) | Steel column base structure | |
| CN205171684U (en) | Connecting piece is used to precast concrete spare | |
| CN205134738U (en) | Precast concrete post |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |