CN107288029A - The method for making square column type performance of concrete column confined - Google Patents

The method for making square column type performance of concrete column confined Download PDF

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Publication number
CN107288029A
CN107288029A CN201710665893.5A CN201710665893A CN107288029A CN 107288029 A CN107288029 A CN 107288029A CN 201710665893 A CN201710665893 A CN 201710665893A CN 107288029 A CN107288029 A CN 107288029A
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CN
China
Prior art keywords
concrete
template
confined
type performance
column type
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.)
Pending
Application number
CN201710665893.5A
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Chinese (zh)
Inventor
周建庭
杨俊�
刘志华
丁鹏
王占鲁
周璐
王宗山
李修君
程俊
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Chongqing Jiaotong University
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Chongqing Jiaotong University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chongqing Jiaotong University filed Critical Chongqing Jiaotong University
Priority to CN201710665893.5A priority Critical patent/CN107288029A/en
Publication of CN107288029A publication Critical patent/CN107288029A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/02Piers; Abutments ; Protecting same against drifting ice

Abstract

The invention discloses a kind of method for making square column type performance of concrete column confined, methods described includes:1)Make cushion cap;2)Dismounting template lower end will be exempted to be connected with cushion cap upper end;3)Cushion cap and exempt from dismounting template enclosed space in build pier core reinforcing bar;4)The casting concrete in the endoporus for exempting to dismantle template, after concrete setting, square column type performance of concrete column confined completes, and exempts to dismantle the layer structure of template formation square column type performance of concrete column confined;The method have the benefit that:A kind of method for making square column type performance of concrete column confined is proposed, after this method, can significantly reduce the construction period, construction cost is reduced, the square column type performance of concrete column confined quality produced is preferable.

Description

The method for making square column type performance of concrete column confined
Technical field
The present invention relates to a kind of performance of concrete column confined manufacturing technology, more particularly to a kind of side for making square column type performance of concrete column confined Method.
Background technology
Columnar pier is widely used bridge pier form in current highway bridge;Prior art make columnar pier when, General that pier shaft reinforcing bar and column template are built on cushion cap, column template is located at the periphery of pier shaft reinforcing bar, finally by column template Casting concrete forms bridge pier, after bridge pier shaping, then column template is removed;The problem of existing has:1) common column template one As be plank sheathing or steel form, plank sheathing is easily damaged in work progress, may need repeatedly to change in work progress, punching block Easily there is corrosion to plate in part under water, it is impossible to reuse, spillage of material is larger;2) conventional column template needs to be segmented section by section , easily there is defective mounting in assembly, causes Construction Joint and deformation crack, if piece is not also easy to spillage situation occur sternly; 3) after after column template is removed, bridge pier surface piece vestige is more, influences pier shaft quality and attractive in appearance, therefore column template is removed, generally Also moditied processing is carried out to pier shaft surface, more bothered;4) in columnar pier engineering, column template build and dismantling operation all Relatively complicated, the amount of labour used of occupancy and duration are all more.Generally speaking, existing column template is installed, dismounting is all more bothered, and is applied The work cycle is longer, the problems such as pier shaft surface crack easily occur.
The content of the invention
The problem of in background technology, the present invention proposes a kind of method for making square column type performance of concrete column confined, and it is created Newly it is:Methods described includes:
1) cushion cap is made;
2) dismounting template lower end will be exempted to be connected with cushion cap upper end;
3) cushion cap and exempt from dismounting template enclosed space in build pier core reinforcing bar;It is general by inside pier stud in the prior art Reinforcing bar be referred to as pier shaft reinforcing bar, in this programme, due to exempt to dismantle template in outside setting, therefore inventor is by internal reinforcing bar Referred to as pier core reinforcing bar;
4) casting concrete in the endoporus for exempting to dismantle template, after concrete setting, square column type concrete pier column production is complete Into, exempt from dismantle template formation square column type performance of concrete column confined layer structure;
The dismounting template of exempting from is made up of framework of steel reinforcement, multiple pegs and concrete covering;The framework of steel reinforcement is tubular Structure, the cross section of tubular structure body is rectangle, and framework of steel reinforcement is wrapped in interior, framework of steel reinforcement and concrete by concrete covering Covering formation cross section is the tubular reinforced concrete structure of rectangle;One end of the peg is fixed with the framework of steel reinforcement to be connected Connect, the other end of peg is prominent from the inner hole wall of the tubular reinforced concrete structure, and the exposed segment length of peg is much smaller than The radial dimension of tubular reinforced concrete structure;Multiple pegs are uniformly distributed on the inner hole wall of tubular reinforced concrete structure; It is prefabricated component to exempt from dismounting template, is transported to job site when using again.
After the present invention program, column template is built without scene, exempting from dismounting, template can pre-production be good in factory, makes Used time is transported to job site again, can effectively shorten the duration, and processing exempts to dismantle template in factory, can effectively reduce and add Work cost, exempt to dismantle the outer wall of template just can carry out moditied processing in the lump when making, and the pier stud produced without carrying out table again Face is modified, and constructing operation is relatively simple, in addition, exempting to dismantle the layer structure that template directly constitutes square column type performance of concrete column confined, no It must be removed, the corresponding cost and duration of removing can be saved, and also be not in spillage situation, work in casting process Cheng Zhiliang can be effectively ensured;Intensive uniform peg as shear connector, can effectively improve exempt from dismounting template with The being completely embedded property of inner concrete, makes the armored concrete newly poured form firm overall stress knot with dismounting template is exempted from Structure.During Specific construction, also relate to concrete curing etc. operation, due to these contents with the present invention innovative point relevance not Greatly, therefore repeat no more herein, when it is implemented, those skilled in the art can preferentially use in existing means.
Preferably, the framework of steel reinforcement is made up of a plurality of side's steel hoop and a plurality of vertical bar shaped reinforcing bar;The annular steel of the side Muscle and the tubular structure body are coaxial, and a plurality of side's steel hoop is axially distributed along tubular structure body;The axle of the vertical bar shaped reinforcing bar To axially in parallel with tubular structure body, wall scroll vertical bar shaped reinforcing bar is fixedly connected with a plurality of side's steel hoop, a plurality of vertical bar shaped steel Muscle is circumferentially distributed along tubular structure body.Specific reinforcement manner and rebar sizes and concrete grade, people in the art Member can rationally determine according to existing reinforced concrete structure strength design theory.
Preferably, step 3) in, after exempting from dismounting model sheetinstallat in place, cable wind rope is set on dismounting template outer wall is exempted from;Side After cylindricality performance of concrete column confined completes, cable wind rope is removed.Set cable wind rope be common approach of the prior art, by its with After the present invention is combined, it can prevent that exempt from dismounting template topples in work progress.
Preferably, the upper and lower ends for exempting to dismantle template are provided with reserving rib;Step 3) in, exempt from dismounting template with holding When platform is connected, the reserving rib for exempting to dismantle template lower end is fixedly connected with the embedded ribs on cushion cap.Exempt to dismantle the pre- of template upper end Muscle is stayed to be used to connect the embedded ribs on bent cap.
Preferably, the concrete covering uses more than compression strength 120MPa, rupture strength more than 30MPa superelevation Energy concrete (UHPC) is made, and concrete covering is made using this concrete, is effectively reduced the radial direction for exempting to dismantle template Thickness and weight, are readily transported and install.The match ratio of various composition can use following preferred scheme in concrete:Shui Ni ︰ silicon Hui ︰ Shi Ying Sha ︰ Shi Ying Fen ︰ Jian Shui Ji ︰ water=1:0.25:1.1:0.3:0.019:0.225, and 2% is mixed with the steel of upper volume Fiber.
The method have the benefit that:A kind of method for making square column type performance of concrete column confined is proposed, using the party It after method, can significantly reduce the construction period, reduce construction cost, the square column type performance of concrete column confined quality produced is preferable.
Brief description of the drawings
Fig. 1, the cross-sectional structure schematic diagram for exempting from dismounting template;
Fig. 2, the shaft section structural representation for exempting from dismounting template;
Fig. 3, the external structure schematic diagram for exempting from dismounting template;
The corresponding title of the mark of each in figure is respectively:Square steel hoop 1, vertical bar shaped reinforcing bar 2, peg 3, reserving rib 4.
Embodiment
A kind of method for making square column type performance of concrete column confined, its innovation is:Methods described includes:
1) cushion cap is made;
2) dismounting template lower end will be exempted to be connected with cushion cap upper end;
3) cushion cap and exempt from dismounting template enclosed space in build pier core reinforcing bar;
4) casting concrete in the endoporus for exempting to dismantle template, after concrete setting, square column type concrete pier column production is complete Into, exempt from dismantle template formation square column type performance of concrete column confined layer structure;
The dismounting template of exempting from is made up of framework of steel reinforcement, multiple pegs 3 and concrete covering;The framework of steel reinforcement is tubular Structure, the cross section of tubular structure body is rectangle, and framework of steel reinforcement is wrapped in interior, framework of steel reinforcement and concrete by concrete covering Covering formation cross section is the tubular reinforced concrete structure of rectangle;One end of the peg 3 is fixed with the framework of steel reinforcement to be connected Connect, the other end of peg 3 is prominent from the inner hole wall of the tubular reinforced concrete structure, and the exposed segment length of peg 3 is far small In the radial dimension of tubular reinforced concrete structure;Multiple pegs 3 uniformly divide on the inner hole wall of tubular reinforced concrete structure Cloth;It is prefabricated component to exempt from dismounting template, is transported to job site when using again.
Further, the framework of steel reinforcement is made up of a plurality of side's steel hoop 1 and a plurality of vertical bar shaped reinforcing bar 2;The Fang Huan Shape reinforcing bar 1 and the tubular structure body are coaxial, and a plurality of side's steel hoop 1 is axially distributed along tubular structure body;The vertical bar shaped steel The axial direction of muscle 2 is axially in parallel with tubular structure body, and wall scroll vertical bar shaped reinforcing bar 2 is fixedly connected with a plurality of side's steel hoop 1, a plurality of Vertical bar shaped reinforcing bar 2 is circumferentially distributed along tubular structure body.Side's steel hoop 1 and vertical bar shaped reinforcing bar 2 use spiral.
Further, step 3) in, after exempting from dismounting model sheetinstallat in place, cable wind rope is set on dismounting template outer wall is exempted from; After square column type performance of concrete column confined completes, cable wind rope is removed.
Further, the upper and lower ends for exempting to dismantle template are provided with reserving rib;Step 3) in, exempt from dismounting template with When cushion cap is connected, the reserving rib for exempting to dismantle template lower end is fixedly connected with the embedded ribs on cushion cap.
Further, the concrete covering uses more than compression strength 120MPa, rupture strength more than 30MPa superelevation Performance concrete makes.The present invention program is particularly suitable for use in the construction of columnar pier of the height below 30 meters.

Claims (6)

1. a kind of method for making square column type performance of concrete column confined, it is characterised in that:Methods described includes:
1) cushion cap is made;
2) dismounting template lower end will be exempted to be connected with cushion cap upper end;
3) cushion cap and exempt from dismounting template enclosed space in build pier core reinforcing bar;
4) casting concrete in the endoporus for exempting to dismantle template, after concrete setting, square column type performance of concrete column confined completes, and exempts from Dismantle the layer structure of template formation square column type performance of concrete column confined;
The dismounting template of exempting from is made up of framework of steel reinforcement, multiple pegs (3) and concrete covering;The framework of steel reinforcement is tubular knot Structure body, the cross section of tubular structure body is rectangle, and framework of steel reinforcement is wrapped in interior, framework of steel reinforcement and concrete bag by concrete covering Layer forms the tubular reinforced concrete structure that cross section is rectangle;One end of the peg (3) is fixed with the framework of steel reinforcement to be connected Connect, the other end of peg (3) is prominent from the inner hole wall of the tubular reinforced concrete structure, the exposed segment length of peg (3) Much smaller than the radial dimension of tubular reinforced concrete structure;Multiple pegs (3) are on the inner hole wall of tubular reinforced concrete structure It is uniformly distributed;It is prefabricated component to exempt from dismounting template, is transported to job site when using again.
2. the method according to claim 1 for making square column type performance of concrete column confined, it is characterised in that:The framework of steel reinforcement by A plurality of side's steel hoop (1) and a plurality of vertical bar shaped reinforcing bar (2) composition;Side's steel hoop (1) and the tubular structure body are same Axle, a plurality of side's steel hoop (1) is axially distributed along tubular structure body;The axial direction of the vertical bar shaped reinforcing bar (2) and tubular structure body It is axially in parallel, wall scroll vertical bar shaped reinforcing bar (2) is fixedly connected with a plurality of side's steel hoop (1), and a plurality of vertical bar shaped reinforcing bar (2) is along cylinder Shape structure it is circumferentially distributed.
3. the method according to claim 1 for making square column type performance of concrete column confined, it is characterised in that:Step 3) in, exempt to tear open Unload after template is installed in place, cable wind rope is set on dismounting template outer wall is exempted from;After square column type performance of concrete column confined completes, by cable Wind rope is removed.
4. the method for the making square column type performance of concrete column confined according to claim 1,2 or 3, it is characterised in that:It is described to exempt to tear open The upper and lower ends for unloading template are provided with reserving rib;Step 3) in, exempt from dismounting template when being connected with cushion cap, will exempt to dismantle under template The reserving rib at end is fixedly connected with the embedded ribs on cushion cap.
5. the method for the making square column type performance of concrete column confined according to claim 1,2 or 3, it is characterised in that:The coagulation Native covering is made using more than compression strength 120MPa, rupture strength more than 30MPa ultra-high performance concrete.
6. the method according to claim 4 for making square column type performance of concrete column confined, it is characterised in that:The concrete covering Made using more than compression strength 120MPa, rupture strength more than 30MPa ultra-high performance concrete.
CN201710665893.5A 2017-08-07 2017-08-07 The method for making square column type performance of concrete column confined Pending CN107288029A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710665893.5A CN107288029A (en) 2017-08-07 2017-08-07 The method for making square column type performance of concrete column confined

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Application Number Priority Date Filing Date Title
CN201710665893.5A CN107288029A (en) 2017-08-07 2017-08-07 The method for making square column type performance of concrete column confined

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CN107288029A true CN107288029A (en) 2017-10-24

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201343825Y (en) * 2008-12-12 2009-11-11 北京工业大学 Prefabricated ordinary concrete pipe and restricted type recycled concrete core combined column
KR20100054889A (en) * 2008-11-15 2010-05-26 고려대학교 산학협력단 Development of fabricated internally confined hollow concrete filled tube using corrugated tube
CN202730951U (en) * 2012-07-06 2013-02-13 淮阴工学院 Novel concrete structure and concrete composite pouring formwork free of removal and pouring inner mold
CN103696359A (en) * 2013-11-21 2014-04-02 中铁大桥局股份有限公司 Prefabricated and cast-in-place bridge pier structure and construction method
CN104746422A (en) * 2014-09-19 2015-07-01 杭州江润科技有限公司 Bridge prefabricated hollow pier column post-poured connecting structure and construction method
CN204780557U (en) * 2015-07-07 2015-11-18 浙江海洋学院 Bridge
CN106192730A (en) * 2016-08-01 2016-12-07 上海应用技术学院 A kind of steel bushing precast splice type bridge pier of band WELDING STUDS
CN106351113A (en) * 2016-08-28 2017-01-25 防灾科技学院 Earthquake control system of high-speed railway bridge

Patent Citations (8)

* Cited by examiner, † Cited by third party
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
CN201343825Y (en) * 2008-12-12 2009-11-11 北京工业大学 Prefabricated ordinary concrete pipe and restricted type recycled concrete core combined column
CN202730951U (en) * 2012-07-06 2013-02-13 淮阴工学院 Novel concrete structure and concrete composite pouring formwork free of removal and pouring inner mold
CN103696359A (en) * 2013-11-21 2014-04-02 中铁大桥局股份有限公司 Prefabricated and cast-in-place bridge pier structure and construction method
CN104746422A (en) * 2014-09-19 2015-07-01 杭州江润科技有限公司 Bridge prefabricated hollow pier column post-poured connecting structure and construction method
CN204780557U (en) * 2015-07-07 2015-11-18 浙江海洋学院 Bridge
CN106192730A (en) * 2016-08-01 2016-12-07 上海应用技术学院 A kind of steel bushing precast splice type bridge pier of band WELDING STUDS
CN106351113A (en) * 2016-08-28 2017-01-25 防灾科技学院 Earthquake control system of high-speed railway bridge

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Application publication date: 20171024