CN105625191A - Construction method of segment girder prestressed pipeline - Google Patents
Construction method of segment girder prestressed pipeline Download PDFInfo
- Publication number
- CN105625191A CN105625191A CN201610072707.2A CN201610072707A CN105625191A CN 105625191 A CN105625191 A CN 105625191A CN 201610072707 A CN201610072707 A CN 201610072707A CN 105625191 A CN105625191 A CN 105625191A
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- plug
- corrugated conduit
- slot die
- corrugated
- construction method
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- 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
Abstract
The invention relates to the technical field of construction of segment girders, and discloses a construction method of a segment girder prestressed pipeline. The construction method comprises the following steps of firstly, casting a matching segment; mounting a plastic pipe (3) and a rubber ring (4) between the matching segment and a second corrugated pipeline (21) for positioning, wherein a second plug (23) and a second notch mold (24) are fixed at the other end of the second corrugated pipeline (21); then putting an air expanding shaft air sac (5) in a first corrugated pipeline (13), putting the air expanding shaft air sac (5) on the inner side of the first corrugated pipeline (13) and on the inner side of the second corrugated pipeline (21), and then performing inflation, so that the side wall of the air expanding shaft air bag (5) is in contact with the inside wall of the first corrugated pipeline (13) and the inside wall of second corrugated pipeline (21); and performing casting after completing mounting. According to the construction method disclosed by the invention, after being inflated, the air expanding shaft air bag stuffed between the inner side of the first corrugated pipeline and the inner side of the second corrugated pipeline, is used for supporting the first corrugated pipeline and the second corrugated pipeline in the corrugated pipelines, and the corrugated pipes are prevented from being deformed and misplaced pressed by external force.
Description
Technical field
The present invention relates to construction technology of segment girder field, particularly relate to beam sections prestressed pipe pipeline construction method.
Background technology
Segmental precast erection method be by the beam body of bridge precasting yard segmented carry out prefabricated, then the construction method of entirety it is assembled at bridge location place, because having the saving duration, scene interference less, not being needed the advantages such as staking, beam body quality can guarantee that, this construction method is gradually at home, be used widely outward. along with construction technology develops, large span over strait, Jiang great Qiao also progressively adopts the method construction, and large-span section beam bridge girder pre-stressed pipeline system to there is bending radius little, length is long, pipe diameter is little, joint is many, impacted by concrete or yielding etc. the feature of the external force such as vibrate, and usually in work progress, affected by These characteristics, prestress pipe coordinate off normal after construction, deformation, aperture spillage, aperture faulting of slab ends, the phenomenons such as line clogging occur often, outward appearance is generally adopted to repair, " cut open the chest ", the method having a strong impact on bridge force-bearing structure such as even disregard.
Summary of the invention
The present invention is directed to existing beam sections prestress pipe and there is the shortcomings such as easy off normal, yielding, aperture spillage, aperture faulting of slab ends, line clogging, provide beam sections prestressed pipe pipeline construction method, solve the problems such as the existing easy off normal of beam sections prestress pipe, yielding, aperture spillage, aperture faulting of slab ends, line clogging.
In order to solve above-mentioned technical problem, the present invention is addressed by following technical proposals:
Beam sections prestressed pipe pipeline construction method, comprises the following steps,
A., first slot die is installed in template, the first slot die other end fixes the first plug, the outside socket first wave stricture of vagina pipeline of the first plug, first ripple pipe side wall is fixed with the first spacer bar, the first corrugated conduit other end also fixes the second plug and the second slot die successively, build again after connecting, form matching section; First plug and the first slot die combine, and corrugated conduit is accurately positioned; First plug and the second plug are used for blocking corrugated conduit, it is prevented that spillage phenomenon, it is ensured that concrete pre-stress pipeline is formed. Form notch at matching section end face, in order to rubber ring Embedment and installation below simultaneously.
B. matching section is removed template, unloads first slot die at matching section two ends, the first plug, the second slot die and the second plug;
C. plastic pipe sleeve is connected on inside matching section one end, and exposes half plastic tube; The plastic pipe sleeve exposed is connected to inside the second corrugated conduit, the second corrugated conduit rubber ring fixing with matching section intersection, and the second corrugated conduit sidewall is fixed by the second spacer bar, and the second corrugated conduit other end fixes the second plug and the second slot die successively;
Air-expanding shaft air bag is put into from the first corrugated conduit, air-expanding shaft air bag is put into inside the first corrugated conduit and the second corrugated conduit, air-expanding shaft air bag is put into inside the first corrugated conduit and the second corrugated conduit, start inflation again, make air-expanding shaft air bag lateral wall contact with the medial wall of the first corrugated conduit and the medial wall of the second corrugated conduit; Build after installing. It is filled in the air-expanding shaft air bag inside the first corrugated conduit and the second corrugated conduit, after inflation, in corrugated conduit, acts the effect supporting the first corrugated conduit road and the second corrugated conduit, it is prevented that by the deformation of external force corrugated conduit, off normal. Rubber ring is embedded in the hole that slot die is reserved, and plastic tube is located between matching section and (build in step C and obtain) Cast-in-Situ Segment. Rubber ring is combined with plastic tube, and corrugated conduit is accurately positioned.
As preferably, also including step D, bleed off the gas in air-expanding shaft air bag, take out air-expanding shaft air bag.
As preferably, also including step D, pull down the second plug and the second slot die.
As preferably, in step A, the first slot die and the first plug are axially middle is equipped with through hole, the first slot die and the first plug is fixed by bolt.
As preferably, in step A, the first spacer bar is groined type.
As preferably, in step C, the second slot die and the second plug are axially middle is equipped with through hole, the second slot die and the second plug is fixed by bolt.
As preferably, in step C, the second spacer bar is groined type.
Due to the fact that and have employed above technical scheme that there is significant technique effect: the present invention is applied to all operating modes that segment girder precast coupling produces. It is filled in the air-expanding shaft air bag inside the first corrugated conduit and the second corrugated conduit, after inflation, in corrugated conduit, acts the effect supporting the first corrugated conduit and the second corrugated conduit, it is prevented that by the deformation of external force corrugated conduit, off normal.
First plug and the first slot die combine, and corrugated conduit is accurately positioned; First plug and the second plug are used for blocking corrugated conduit, it is prevented that spillage phenomenon, it is ensured that concrete pre-stress pipeline is formed. Form notch at matching section end face, in order to rubber ring Embedment and installation below simultaneously.
Rubber ring is embedded in the hole that slot die is reserved, and plastic tube is located between matching section and (build in step C and obtain) Cast-in-Situ Segment. Rubber ring is combined with plastic tube, and corrugated conduit is accurately positioned.
First corrugated conduit and the second corrugated conduit form prestress pipe, the prestress pipe of this structure solves beam sections science of bridge building prestressing force stress problem, the problem namely solving the existing easy off normal of beam sections prestress pipe, yielding, aperture spillage, aperture faulting of slab ends, line clogging. And apparatus of the present invention compact conformation, easy to operate.
Accompanying drawing explanation
Fig. 1 is the structural representation recorded in step A of the present invention.
Fig. 2 is the structural representation recorded in step C of the present invention.
The first slot die structural representation that Fig. 3 is.
The first stopper structure schematic diagram that Fig. 4 is.
The first spacer bar structure schematic diagram that Fig. 5 is.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail.
Embodiment 1
Beam sections prestressed pipe pipeline construction method, as Figure 1-5, comprises the following steps,
A., first slot die 11 is installed in template, first slot die 11 other end fixes the first plug 12, the outside socket first wave stricture of vagina pipeline 13 of the first plug 12, first corrugated conduit 13 sidewall is fixed with the first spacer bar 14, first corrugated conduit 13 other end also fixes the second plug 121 and the second slot die 111 successively, build again after connecting, form matching section 1;
B. matching section 1 is removed template, unloads first slot die the 11, first plug the 12, second slot die 111 and second plug 121 at matching section 1 two ends;
C. plastic tube 3 is socketed in inside matching section 1 one end, and exposes half plastic tube 3; The plastic tube 3 exposed is socketed on inside the second corrugated conduit 21, second corrugated conduit 21 rubber ring 4 fixing with matching section 1 intersection, second corrugated conduit 21 sidewall is fixed by the second spacer bar 22, and second corrugated conduit 21 other end fixes the second plug 23 and the second slot die 24 successively;
Air-expanding shaft air bag 5 is put into from the first corrugated conduit 13, air-expanding shaft air bag 5 is put into inside the first corrugated conduit 13 and the second corrugated conduit 21, start inflation again, make the medial wall of outer 5 sidewalls of air-expanding shaft air bag and the first corrugated conduit 13 and the medial wall contact of the second corrugated conduit 21; Build after installing.
In step A, the first slot die 11 and the first plug 12 axially centre are equipped with through hole, the first slot die 11 and the first plug 12 are fixed by bolt. First spacer bar 14 is groined type.
In step C, the second slot die 111 and the second plug 121 axially centre are equipped with through hole, the second slot die 111 and the second plug 121 are fixed by bolt. Second spacer bar 22 is groined type.
Embodiment 2
Beam sections prestressed pipe pipeline construction method, as Figure 1-5, comprises the following steps,
A., first slot die 11 is installed in template, first slot die 11 other end fixes the first plug 12, the outside socket first wave stricture of vagina pipeline 13 of the first plug 12, first corrugated conduit 13 sidewall is fixed with the first spacer bar 14, first corrugated conduit 13 other end also fixes the second plug 121 and the second slot die 111 successively, build again after connecting, form matching section 1;
B. matching section 1 is removed template, unloads first slot die the 11, first plug the 12, second slot die 111 and second plug 121 at matching section 1 two ends;
C. plastic tube 3 is socketed in inside matching section 1 one end, and exposes half plastic tube 3; The plastic tube 3 exposed is socketed on inside the second corrugated conduit 21, second corrugated conduit 21 rubber ring 4 fixing with matching section 1 intersection, second corrugated conduit 21 sidewall is fixed by the second spacer bar 22, and second corrugated conduit 21 other end fixes the second plug 23 and the second slot die 24 successively;
Air-expanding shaft air bag 5 is put into from the first corrugated conduit 13, air-expanding shaft air bag 5 is put into inside the first corrugated conduit 13 and the second corrugated conduit 21, start inflation again, make the medial wall of outer 5 sidewalls of air-expanding shaft air bag and the first corrugated conduit 13 and the medial wall contact of the second corrugated conduit 21; Building after installing, what newly build is.
Also include step D, bleed off the gas in air-expanding shaft air bag 5, take out air-expanding shaft air bag 5. Pull down the second plug 23 and the second slot die 24.
In step A, the first slot die 11 and the first plug 12 axially centre are equipped with through hole, the first slot die 11 and the first plug 12 are fixed by bolt. First spacer bar 14 is groined type.
In step C, the second slot die 111 and the second plug 121 axially centre are equipped with through hole, the second slot die 111 and the second plug 121 are fixed by bolt. Second spacer bar 22 is groined type.
In a word, the foregoing is only presently preferred embodiments of the present invention, all equalizations made according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (7)
1. beam sections prestressed pipe pipeline construction method, it is characterised in that: comprise the following steps,
A., first slot die (11) is installed in template, first slot die (11) other end fixes the first plug (12), outside socket first wave stricture of vagina pipeline (13) of the first plug (12), first corrugated conduit (13) sidewall the first spacer bar (14) is fixed, first corrugated conduit (13) other end also fixes the second plug (121) and the second slot die (111) successively, build again after connecting, form matching section (1);
B. matching section (1) is removed template, unloads first slot die (11) at matching section (1) two ends, the first plug (12), the second slot die (111) and the second plug (121);
C. plastic tube (3) is socketed in inside matching section (1) one end, and exposes half plastic tube (3); The plastic tube (3) exposed is socketed on the second corrugated conduit (21) inner side, second corrugated conduit (21) rubber ring (4) fixing with matching section (1) intersection, second corrugated conduit (21) sidewall is fixed by the second spacer bar (22), and the second corrugated conduit (21) other end fixes the second plug (23) and the second slot die (24) successively;
Air-expanding shaft air bag (5) is put into from the first corrugated conduit (13), air-expanding shaft air bag (5) is put into the first corrugated conduit (13) and the second corrugated conduit (21) inner side, start inflation again, make the medial wall of outer (5) sidewall of air-expanding shaft air bag and the first corrugated conduit (13) and the medial wall contact of the second corrugated conduit (21); Build after installing.
2. beam sections prestressed pipe pipeline construction method according to claim 1, it is characterised in that: also include step D, bleed off the gas in air-expanding shaft air bag (5), take out air-expanding shaft air bag (5).
3. beam sections prestressed pipe pipeline construction method according to claim 1, it is characterised in that: also include step D, pull down the second plug (23) and the second slot die (24).
4. beam sections prestressed pipe pipeline construction method according to claim 1, it is characterized in that: in step A, first slot die (11) and the first plug (12) are axially middle is equipped with through hole, the first slot die (11) and the first plug (12) is fixed by bolt.
5. beam sections prestressed pipe pipeline construction method according to claim 1, it is characterised in that: in step A, the first spacer bar (14) is groined type.
6. beam sections prestressed pipe pipeline construction method according to claim 1, it is characterized in that: in step C, second slot die (111) and the second plug (121) are axially middle is equipped with through hole, the second slot die (111) and the second plug (121) is fixed by bolt.
7. beam sections prestressed pipe pipeline construction method according to claim 1, it is characterised in that: in step C, the second spacer bar (22) is groined type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610072707.2A CN105625191B (en) | 2016-02-02 | 2016-02-02 | Beam sections prestressed pipe pipeline construction method |
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| CN201610072707.2A CN105625191B (en) | 2016-02-02 | 2016-02-02 | Beam sections prestressed pipe pipeline construction method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107338729A (en) * | 2017-07-11 | 2017-11-10 | 中铁四局集团第二工程有限公司 | A kind of prestress pipe anti-blocking device and construction method |
| CN107386123A (en) * | 2017-08-14 | 2017-11-24 | 中铁六局集团有限公司 | A kind of box beam reserves anchor cable hole construction method |
| CN108748648A (en) * | 2018-05-25 | 2018-11-06 | 中铁建大桥工程局集团第工程有限公司 | A kind of elongated prestressed pore passage positioning device in the prefabricated longitudinal direction of short line casting box girder segment and construction method |
| CN110804954A (en) * | 2019-11-18 | 2020-02-18 | 中交二航局第四工程有限公司 | Construction process suitable for top beam section of segmental beam pier |
| CN111926708A (en) * | 2020-07-15 | 2020-11-13 | 中国建筑第七工程局有限公司 | Segment beam wet joint prestress pore-forming device |
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| JPH1054037A (en) * | 1996-08-09 | 1998-02-24 | Nippon Steel Metal Prod Co Ltd | Coffering method and steel structural body therefor |
| CN202787051U (en) * | 2012-08-01 | 2013-03-13 | 中铁三局集团有限公司 | Continuous beam vertical prestressed pipeline connection structure |
| CN103352431A (en) * | 2013-08-06 | 2013-10-16 | 天津鑫坤泰预应力专业技术有限公司 | Finished steel strand harness propulsion device |
| 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 |
| CN204001777U (en) * | 2014-08-08 | 2014-12-10 | 青岛海川建设集团有限公司 | A kind of prestressed structure duct grouting device |
| CN104963359A (en) * | 2015-04-24 | 2015-10-07 | 中交公路规划设计院有限公司 | Segmented bonding prestressed pipe used for immersed tunnel |
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Patent Citations (6)
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| JPH1054037A (en) * | 1996-08-09 | 1998-02-24 | Nippon Steel Metal Prod Co Ltd | Coffering method and steel structural body therefor |
| CN202787051U (en) * | 2012-08-01 | 2013-03-13 | 中铁三局集团有限公司 | Continuous beam vertical prestressed pipeline connection structure |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107338729A (en) * | 2017-07-11 | 2017-11-10 | 中铁四局集团第二工程有限公司 | A kind of prestress pipe anti-blocking device and construction method |
| CN107386123A (en) * | 2017-08-14 | 2017-11-24 | 中铁六局集团有限公司 | A kind of box beam reserves anchor cable hole construction method |
| CN108748648A (en) * | 2018-05-25 | 2018-11-06 | 中铁建大桥工程局集团第工程有限公司 | A kind of elongated prestressed pore passage positioning device in the prefabricated longitudinal direction of short line casting box girder segment and construction method |
| 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 |
| CN110804954A (en) * | 2019-11-18 | 2020-02-18 | 中交二航局第四工程有限公司 | Construction process suitable for top beam section of segmental beam pier |
| CN110804954B (en) * | 2019-11-18 | 2021-06-18 | 中交二航局第四工程有限公司 | Construction process suitable for top beam section of segmental beam pier |
| CN111926708A (en) * | 2020-07-15 | 2020-11-13 | 中国建筑第七工程局有限公司 | Segment beam wet joint prestress pore-forming device |
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| Publication number | Publication date |
|---|---|
| CN105625191B (en) | 2017-07-21 |
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