CN107100078A - A kind of packaged type bridges Precast Pier Columns component installation method - Google Patents

A kind of packaged type bridges Precast Pier Columns component installation method Download PDF

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Publication number
CN107100078A
CN107100078A CN201710357824.8A CN201710357824A CN107100078A CN 107100078 A CN107100078 A CN 107100078A CN 201710357824 A CN201710357824 A CN 201710357824A CN 107100078 A CN107100078 A CN 107100078A
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CN
China
Prior art keywords
precast pier
pier columns
precast
columns
jack
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CN201710357824.8A
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Chinese (zh)
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CN107100078B (en
Inventor
杨根明
吴玮
罗利
唐丽君
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中国五冶集团有限公司
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges

Abstract

The invention discloses a kind of packaged type bridges Precast Pier Columns component installation method, by the accurate assembled cushion cap poured in advance of Precast Pier Columns, and between Precast Pier Columns and cushion cap set pier stud and sit and starch, including step:Before Precast Pier Columns are in place, docking mark is marked;According to absolute altitude, center cushion block is laid;Hoisting prefabricated pier stud is inserted after the reserved steel bar on people's cushion cap, and docking mark aligns one by one;Regulation jack is placed, loop wheel machine is unloaded on power, decentralization Precast Pier Columns to center cushion block;Using jack regulation Precast Pier Columns perpendicularity until meeting design requirement, jack is locked, the piston stroke and pier stud for recording jack sit slurry thickness;Hang Precast Pier Columns;Installation prepares the grouting template that pier stud sits slurry on cushion cap, and sitting slurry thickness data according to measurement pier stud prepares grouting material, and perfusion pier stud sits slurry, formal in place:Then loop wheel machine transfers Precast Pier Columns, and Precast Pier Columns are accurately in place, locks jack, is conserved by grout hole grouting material, installation.

Description

A kind of packaged type bridges Precast Pier Columns component installation method
Technical field
The present invention relates to a kind of building engineering field, and in particular to a kind of packaged type bridges Precast Pier Columns component installation side Method.
Background technology
With Urban Bridge or pier stud construction in precast assembly construction technology popularization, reinforced bar sleeve be in the milk interconnection technique by Gradually it is applied in the vertical connection of the precast concretes such as Precast Pier Columns, prefabricated bent cap.But, filled using reinforced bar sleeve Starch the Precast Pier Columns (that is, pier stud) of interconnection technique, due to the complexity and high-precision requirement of its assembling construction process, always no To extensive practical application.In the precast assembly process of conventional house building, can accurately it be controlled by the method for axis location Splicing and positioning between prefabricated components processed.Precast Pier Columns in overhead girder, its height is real from more than ten rice to more than tens rice Border weight is up to hundred tons, and the method positioned by conventional axial can not accurately control the splicing and positioning of Precast Pier Columns.
For the larger Precast Pier Columns component of volume and weight, when it is with the assembly of bottom cushion cap, assembled essence can be produced The problem of degree is difficult to control to, while the degree control during its assembly can also influence the assembled quality of superstructure.Therefore, Being accurately positioned between Precast Pier Columns and cushion cap, is a technical barrier urgently to be resolved hurrily.
The content of the invention
The purpose of the present invention is to be to overcome prior art not enough, it is therefore intended that provide a kind of packaged type bridges Precast Pier Columns Component installation method, the splicing and positioning of Precast Pier Columns can not accurately be controlled by solving existing packaged type bridges Precast Pier Columns, and The problem of control of Precast Pier Columns installed height mark.
The present invention is achieved through the following technical solutions:
A kind of packaged type bridges Precast Pier Columns component installation method, by the accurate assembled cushion cap poured in advance of Precast Pier Columns On, branch sleeve pre-buried in Precast Pier Columns is inserted by cushion cap reserved steel bar, is attached using pressure grouting, including step Suddenly:
Before Precast Pier Columns are in place, marked respectively on the Precast Pier Columns interface to be installed of Precast Pier Columns bottom face and cushion cap Docking mark;
According to absolute altitude, in Precast Pier Columns interface center placement center to be installed cushion block;
Hoisting prefabricated pier stud is inserted after the reserved steel bar on people's cushion cap, adjusts Precast Pier Columns bottom face so that Precast Pier Columns Alignd one by one with the mark that docks of Precast Pier Columns joint face to be installed;
Regulation jack is placed, loop wheel machine is unloaded on power, decentralization Precast Pier Columns to center cushion block;Adjust prefabricated using jack Pier stud perpendicularity is until meet design requirement, and locking jack, the piston stroke and pier stud for recording jack sits slurry thickness;
Hang Precast Pier Columns;
Installation prepares the grouting template that pier stud sits slurry on cushion cap, and sitting slurry thickness data according to measurement pier stud prepares grouting Material, perfusion pier stud sits slurry,
It is formal in place:Then loop wheel machine transfers Precast Pier Columns, and Precast Pier Columns are accurately in place, locks jack, passes through grout hole Grouting material is conserved, installation.
Further, the docking mark is found out by the way of in cross point has poured pier stud and Precast Pier Columns to be installed The central point of joint face, cross hairs is ejected using ink fountain.
Further, the thickness for placing center cushion block designs top mark height and the determination of pier stud prefabricated components length according to pier stud.
Further, before formal in place, sit slurry thickness data according to measurement pier stud and prepare grouting material, heighten jack piston 5mm, then loop wheel machine is transferred overall process in Precast Pier Columns, decentralization process and measured, while jack is adjusted, the amount control adjusted every time Within 1mm, until deviation is stable in design error requirement, now Precast Pier Columns are accurately in place, lock jack, fill Slurry is conserved, while fixing Precast Pier Columns, installation temporarily using strut.
Further, the placement regulation jack, multiple jack are circumferentially positioned at pre- by adjusting means Pier stud bottom processed.
Further, the adjusting means includes link and support block, and the link is arranged on prefabricated by bolt On pier stud, the support block is arranged on link, and the jack installs support Precast Pier Columns tune by coordinating with support block Save perpendicularity and height.
The present invention compared with prior art, has the following advantages and advantages:
1st, a kind of packaged type bridges Precast Pier Columns component installation method of the invention, by Precast Pier Columns bottom face and cushion cap Precast Pier Columns interface to be installed on mark respectively docking mark;And place regulation jack, it is possible to achieve prefabricated pier Post Dock With Precision Position, then the thickness that pier stud sits slurry is calculated by pre-installation, in the case of replacing or retaining center cushion block, make prefabricated Pier stud is installed to precisely in place in accurate regulation, sits slurry to lock with regard to bit space by pier stud, so as to ensure that Precast Pier Columns can essence Standard is fixedly installed, and height and perpendicularity mechanical means are adjusted relative to existing be supported only with center cushion block, of the invention Regulative mode is more simple and convenient, while ensureing that Precast Pier Columns can be fixed precisely.
2nd, a kind of packaged type bridges Precast Pier Columns component installation method of the invention, for ensure Precast Pier Columns accurate installation and Precision, it is ensured that and pier stud sits the determination of the grouting thickness of slurry, prevents the excessive or very few grouting slurry added, Precast Pier Columns Install using it is pre- it is in place by the way of, primarily determine that it is each regulation jack height and be in the milk thickness;
3rd, a kind of packaged type bridges Precast Pier Columns component installation method of the invention, using this method, makes Precast Pier Columns in reality Now in the case of accurate installation, installation effectiveness improves 40%, greatly shortens the installation period of Precast Pier Columns, is easy to Precast Pier Columns Support form popularization and application, in bridge construction, building, hydraulic engineering field can obtain wide hair practice and apply.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes one of the application Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is a kind of main structure diagram of packaged type bridges Precast Pier Columns component installation method of the invention;
Fig. 2 is a kind of overlooking the structure diagram of packaged type bridges Precast Pier Columns component installation method of the invention;
Mark and corresponding parts title in accompanying drawing:
1- Precast Pier Columns, 2- cushion caps, 3- pier studs sit slurry, and 4- centers cushion block, 5- adjusting meanss, 6- reserved steel bars, 7- is very heavy Top, 8- grout holes, 9- links, 10- support blocks.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this Invention is described in further detail, and exemplary embodiment and its explanation of the invention is only used for explaining the present invention, does not make For limitation of the invention.
Embodiment
As shown in Figure 1-2, a kind of packaged type bridges Precast Pier Columns component installation method of the invention, accurate by Precast Pier Columns 1 Be assembled on the cushion cap 2 poured in advance, Precast Pier Columns 1 and the structure type of cushion cap 2 be all with structure type, cushion cap 2 Reserved steel bar 6 is implanted with advance on Precast Pier Columns interface to be installed, the end of Precast Pier Columns 1 is also implanted with the butt muff of F types in advance, And the connection support of slurry 3 is sat by pier stud between Precast Pier Columns 1 and cushion cap 2, pass through the reserved steel bar 6 of cushion cap 2 and insert Precast Pier Columns 1 Interior pre-buried branch sleeve, is attached using pressure grouting, including step:
Before Precast Pier Columns 1 are in place, divide on the bottom face of Precast Pier Columns 1 and the Precast Pier Columns interface to be installed of cushion cap 2 Docking mark is not marked;
According to absolute altitude, the cushion block 4 at Precast Pier Columns interface center placement center to be installed;
Hoisting prefabricated pier stud 1 is inserted after the reserved steel bar 6 on people's cushion cap, adjusts the bottom face of Precast Pier Columns 1 so that prefabricated pier Post 1 aligns one by one with the mark that docks of Precast Pier Columns joint face to be installed;
Regulation jack 7 is placed, loop wheel machine is unloaded on power, decentralization Precast Pier Columns 1 to center cushion block 4;Adjusted using jack 7 The perpendicularity of Precast Pier Columns 1 is until meet design requirement, and locking jack 7, the piston stroke and pier stud for recording jack 7 sits slurry 3 Thickness;
Hang Precast Pier Columns 1;
Installation prepares the grouting template (to prevent grouting material from overflowing pollution finished product) that pier stud sits slurry 3 on cushion cap, and foundation is surveyed Amount pier stud sits 3 thickness datas of slurry and prepares grouting material, and perfusion pier stud sits slurry 3,
It is formal in place:Then loop wheel machine transfers Precast Pier Columns 1, and Precast Pier Columns 1 are accurate in place, lock jack 7, pass through grouting The grouting material maintenance of hole 8, reserved steel bar 6 is connected grouting with the pipe fitting of F types, general using being in the milk from lower row's grout hole 8, installs Complete.
Docking mark finds out the center of Precast Pier Columns 1 and Precast Pier Columns joint face to be installed by the way of in cross point Point, cross hairs is ejected using ink fountain.
The thickness of placement center cushion block 4 designs top mark height according to pier stud and pier stud prefabricated components length is determined.
Before formal in place, sit 3 thickness datas of slurry according to measurement pier stud and prepare grouting material, heighten the piston 5mm of jack 7, It is easy to follow-up decline to adjust jack 7, Precast Pier Columns 1 is sat 3 Dock With Precision Positions of slurry with pier stud, then loop wheel machine decentralization Precast Pier Columns 1, Overall process is measured in decentralization process, while adjusting jack 7, the amount adjusted every time is controlled within 1mm, until deviation stabilization exists In design error requirement, now Precast Pier Columns 1 are i.e. accurately in place, lock jack 7, grouting material maintenance, while using strut Interim fixed Precast Pier Columns 1, installation.
Regulation jack 7 is placed, multiple jack 7 are circumferentially positioned at the bottom of Precast Pier Columns 1 by adjusting means 5 Portion.
Adjusting means 5 includes link 9 and support block 10, and link 9 is arranged in Precast Pier Columns 1 by bolt, described Support block 10 is arranged on link 9, and the jack 7 is hung down by coordinating to install support Precast Pier Columns 1 and adjust with support block 10 Straight degree and height.
As shown in Figure 1-2, a kind of packaged type bridges Precast Pier Columns component installation method of the invention, Specific construction step, 1, Before pier stud is in place, the central point for having poured pier stud and Precast Pier Columns joint face to be installed, profit are found out by the way of in cross point Cross hairs is ejected with ink fountain.
2nd, absolute altitude is measured.Top mark height and pier stud prefabricated components length, the placement center at cross searching are designed according to pier stud Cushion block (steel), it is ensured that pier stud installed height mark meets design requirement, it is ensured that length meets design and wanted in the deep people's sleeve of pre- doweling Ask.
3rd, it is pre- in place:To ensure accurate installation and the precision of Precast Pier Columns, it is ensured that and pier stud sits the grouting thickness of slurry It is determined that, prevent add excessive or very few grouting slurry, Precast Pier Columns install using it is pre- it is in place by the way of, primarily determine that each tune Save the height and grouting thickness of jack.
Pier stud is inserted after people cushion cap reserved steel bar, slow decentralization, make on the cushion block of pier stud prefabricated component Luo centers and slightly by Power.Adjust plan-position so that Precast Pier Columns center line aligns one by one with having poured the center line of pier stud, it is ensured that pier stud does not produce torsion Turn, it is in place accurate.Regulation jack (jack should be placed on below adjusting means, and close to inner side) is placed, loop wheel machine is slow Unload on power, decentralization pier stud to center cushion block;Using jack regulation pier stud perpendicularity until meeting design requirement, lock very heavy Top, records position, piston stroke and the grouting thickness of jack, hangs pier stud.
4th, it is formal in place:Formal preceding install in place sits slurry template, it is ensured that grouting material is non-leakage;Prepare and fill according to measurement data Slurry (be slightly more than in the milk thickness), heightens jack piston 5mm, and then the slow pine of loop wheel machine hooks complete in decentralization pier stud, decentralization process Process measurement, while adjusting jack, the amount adjusted every time is controlled in 1mm.Until deviation is stable in design error requirement, Now pier stud is accurately in place, locks jack, and grouting material maintenance, while fixing Precast Pier Columns temporarily using strut, is installed Complete.
A kind of packaged type bridges Precast Pier Columns component installation method of the present invention, by Precast Pier Columns bottom face and cushion cap Docking mark is marked on Precast Pier Columns interface to be installed respectively;And place regulation jack, it is possible to achieve Precast Pier Columns Dock With Precision Position, then the thickness that pier stud sits slurry is calculated by pre-installation, in the case of replacing or retaining center cushion block, make prefabricated pier Post is installed to precisely in place in accurate regulation, sits slurry to lock with regard to bit space by pier stud, so as to ensure that Precast Pier Columns can be precisely It is fixedly installed, height and perpendicularity mechanical means, tune of the invention is adjusted relative to existing be supported only with center cushion block Section mode is more simple and convenient, while ensureing that Precast Pier Columns can be fixed precisely.
A kind of packaged type bridges Precast Pier Columns component installation method of the present invention, to ensure accurate installation and the essence of Precast Pier Columns Degree, it is ensured that and pier stud sits the determination of the grouting thickness of slurry, prevents the excessive or very few grouting slurry added, Precast Pier Columns peace Dress using it is pre- it is in place by the way of, primarily determine that it is each regulation jack height and be in the milk thickness;
A kind of packaged type bridges Precast Pier Columns component installation method of the present invention, using this method, makes Precast Pier Columns in realization In the case of accurate installation, installation effectiveness improves 40%, greatly shortens the installation period of Precast Pier Columns, is easy to the branch of Precast Pier Columns Shield form popularization and application, in bridge construction, building, hydraulic engineering field can obtain wide hair practice and apply.
Above-described embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc. all should be included Within protection scope of the present invention.

Claims (6)

1. a kind of packaged type bridges Precast Pier Columns component installation method, it is characterised in that Precast Pier Columns (1) are accurately assembled in and carried Before on the cushion cap (2) that has poured, branch sleeve pre-buried in Precast Pier Columns (1) is inserted by cushion cap (2) reserved steel bar, pressure is utilized Power grouting is attached, including step:
Before Precast Pier Columns (1) are in place, on the bottom face of Precast Pier Columns (1) and the Precast Pier Columns interface to be installed of cushion cap (2) Docking mark is marked respectively;
According to absolute altitude, in Precast Pier Columns interface center placement center cushion block (4) to be installed;
Hoisting prefabricated pier stud (1) is inserted after the reserved steel bar (6) on people's cushion cap, adjusts Precast Pier Columns (1) bottom face so that prefabricated Pier stud (1) aligns one by one with the mark that docks of Precast Pier Columns joint face to be installed;
Regulation is placed with jack (7), loop wheel machine is unloaded in power, decentralization Precast Pier Columns (1) to center cushion block (4);Utilize jack (7) Regulation Precast Pier Columns (1) perpendicularity is until meet design requirement, locking jack (7), the piston stroke of record jack (7) and Pier stud sits slurry (3) thickness;
Hang Precast Pier Columns (1);
Installation prepares the grouting template that pier stud sits slurry (3) on cushion cap, and sitting slurry (3) thickness data according to measurement pier stud prepares grouting Material, pours into seat slurry, and slightly above pier stud sits slurry (3) measurement thickness.
It is formal in place:Then loop wheel machine transfers Precast Pier Columns (1), and Precast Pier Columns (1) are accurate in place, and locking jack (7) passes through and filled Starch hole (8) perfusion slurry, maintenance, installation.
2. a kind of packaged type bridges Precast Pier Columns component installation method according to claim 1, it is characterised in that:It is described right The central point that mark finds out Precast Pier Columns (1) and Precast Pier Columns joint face to be installed by the way of in cross point is connect, ink is utilized Bucket ejection cross hairs.
3. a kind of packaged type bridges Precast Pier Columns component installation method according to claim 1, it is characterised in that:In placement The thickness of heart cushion block (4) designs top mark height according to pier stud and pier stud prefabricated components length is determined.
4. a kind of packaged type bridges Precast Pier Columns component installation method according to claim 1, it is characterised in that:Formally Before position, sit slurry (3) thickness data according to measurement pier stud and prepare grouting material, the piston 5mm of jack (7) is heightened, then under loop wheel machine Overall process is put in Precast Pier Columns (1), decentralization process to measure, while adjust jack (7), the amount control adjusted every time 1mm with Interior, until deviation is stable in design error requirement, now Precast Pier Columns (1) are accurately in place, and locking jack (7) is filled Grout material is conserved, while fixing Precast Pier Columns (1), installation temporarily using strut.
5. a kind of packaged type bridges Precast Pier Columns component installation method according to claim 1, it is characterised in that:It is described to put Regulation jack (7) is put, multiple jack (7) are circumferentially positioned at Precast Pier Columns (1) bottom side by adjusting means (5) Face.
6. a kind of packaged type bridges Precast Pier Columns component installation method according to claim 5, it is characterised in that:It is described to adjust Regulating device (5) includes link (9) and support block (10), and the link (9) is arranged in Precast Pier Columns (1) by bolt, The support block (10) is arranged on link (9), and the jack (7) supports prefabricated by coordinating to install with support block (10) Pier stud (1) adjusts perpendicularity and height.
CN201710357824.8A 2017-05-19 2017-05-19 A kind of packaged type bridges Precast Pier Columns component installation method Active CN107100078B (en)

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Cited By (5)

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CN107489429A (en) * 2017-08-31 2017-12-19 中交第二航务工程局有限公司 Prefabricated maintenance pipe fitting method
CN107701198A (en) * 2017-08-31 2018-02-16 中交第二航务工程局有限公司 A kind of slip casting fixing means of prefabricated components
CN109138447A (en) * 2018-10-11 2019-01-04 厦门市建筑科学研究院集团股份有限公司 The method that a kind of installation of vertical member and horizontal joint sit slurry
CN110863427A (en) * 2019-12-24 2020-03-06 广州市市政集团有限公司 Connecting structure for assembled bridge pier column and bearing platform and construction method thereof
CN110924305A (en) * 2019-11-01 2020-03-27 中交第二航务工程局有限公司 Construction method of prefabricated cover beam installation positioning system

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CN111305082B (en) * 2020-04-03 2021-04-06 中铁四局集团有限公司 Method for mounting capping beam for mutually constraining adjacent pier columns in prefabricated bridge

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CN205576723U (en) * 2016-02-15 2016-09-14 上海应用技术学院 Adoption is excelled in prefabrication of fibre mortar and bellows joint and is assembled pier
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CN107489429A (en) * 2017-08-31 2017-12-19 中交第二航务工程局有限公司 Prefabricated maintenance pipe fitting method
CN107701198A (en) * 2017-08-31 2018-02-16 中交第二航务工程局有限公司 A kind of slip casting fixing means of prefabricated components
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CN110924305A (en) * 2019-11-01 2020-03-27 中交第二航务工程局有限公司 Construction method of prefabricated cover beam installation positioning system
CN110863427A (en) * 2019-12-24 2020-03-06 广州市市政集团有限公司 Connecting structure for assembled bridge pier column and bearing platform and construction method thereof

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