CN105781017A - Ultrahigh-performance assembly column and manufacturing method thereof - Google Patents

Ultrahigh-performance assembly column and manufacturing method thereof Download PDF

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Publication number
CN105781017A
CN105781017A CN201610293282.8A CN201610293282A CN105781017A CN 105781017 A CN105781017 A CN 105781017A CN 201610293282 A CN201610293282 A CN 201610293282A CN 105781017 A CN105781017 A CN 105781017A
Authority
CN
China
Prior art keywords
steel pipe
pipe
strength concrete
frp
performance
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
CN201610293282.8A
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Chinese (zh)
Inventor
杨芳
孙林柱
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Wenzhou University
Original Assignee
Wenzhou 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 Wenzhou University filed Critical Wenzhou University
Priority to CN201610293282.8A priority Critical patent/CN105781017A/en
Publication of CN105781017A publication Critical patent/CN105781017A/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
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/30Columns; Pillars; Struts
    • E04C3/36Columns; Pillars; Struts of materials not covered by groups E04C3/32 or E04C3/34; of a combination of two or more materials
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00Material constitution of bridges

Abstract

The invention discloses an ultrahigh-performance assembly column. A high-strength concrete core is wrapped by an inner steel pipe, an engineering cement-based composite layer wraps the inner steel pipe, and is wrapped by an FRP (fiber reinforced plastic) pipe. The invention further discloses a manufacturing method of the ultrahigh-performance assembly column. The manufacturing method includes steps of A, fixing an ultrahigh-performance assembly column casting template having the inner steel pipe and the FRP pipe inside; B, injecting high-strength concrete into the inner steel pipe, and injecting engineering cement-based composite between the inner steel pipe and the FRP pipe; C, forming the high-strength concrete core and the engineering cement-based composite layer after condensation. The assembly column uses the inner steel pipe as the framework, and its body high in strength is formed by the high-strength concrete core and the engineering cement-based composite layer. The FRP pipe provides elastic restraint, the column has superhigh anti-bending, anti-shearing, anti-pressure and anti-tension strength, and binding of rebars is omitted. In addition, with the flexible FRP pipe providing elastic restraint, and the engineering cement-based composite layer, and the column having better mechanic performance on the surface is not easy to crack.

Description

Very-high performance coupled column and manufacture method thereof
Technical field
The present invention relates to a kind of very-high performance coupled column.Present invention also offers the method manufacturing above-mentioned very-high performance coupled column.
Background technology
Tradition cylinder is generally adopted common reinforced concrete pile, the bearing capacity of pillar is relatively low, ductility is poor, fragility is big, when there is violent earthquake, owing to the restraining forces of stirrup causes that bridge and high building structure post produce to destroy not, building or Collapse of Structures, shock resistance is not enough.In order to improve above-mentioned deficiency, the present invention adopts the double-deck concrete method of stirrup restraint and high-strength, improves the properties of cylinder, provides technical support for elevated bridge and skyscraper cylinder.
Summary of the invention
In view of the deficiency that background technology exists, the technical problem to be solved is to provide the very-high performance coupled column that a kind of bending resistance, resistance to compression, tension, antidetonation and shear behavior are superpower.
The present invention has adopted the following technical scheme that: very-high performance coupled column, including high-strength concrete inner core, high-strength concrete inner core periphery is enclosed with interior steel pipe, and interior steel pipe periphery is enclosed with engineered cementitious based composites layer, and engineered cementitious based composites layer periphery is enclosed with FRP pipe.
The method of the above-mentioned very-high performance coupled column of manufacture provided by the invention, comprises the following steps: A, fixed packet containing interior steel pipe and FRP pipe at interior very-high performance coupled column cast template;B, inside steel pipe inject high-strength concrete, between inside steel pipe and FRP pipe, injects engineered cementitious based composites;C, rear formation high-strength concrete inner core to be solidified and engineered cementitious based composites layer.
Very-high performance coupled column provided by the invention and manufacture method thereof have following technical effect that 1, can substitute tradition reinforcing bar, and the overall bending resistance of coupled column, shearing resistance, resistance to compression, tension and anti-seismic performance can be made to be strengthened;2, save the work of assembling reinforcement, can save labour turnover and the reduction of erection time;3, after adopting FRP pipe and cement-base composite material double constraints concrete inner core, after adding steel fibre and PVA fiber due to the cement-base composite material of outer layer, tensile property strengthens and has certain ductility, and FRP pipe has ductility equally, after its inner layer material is retrained by FRP pipe again, can make damaged surface that crack not easily occurs, can further improve the durability of structure and service life.4, interior steel pipe can have concrete inner core mould and the effect of two kinds of skeleton concurrently, enables concrete inner core and engineered cementitious based composites layer and high-strength concrete inner core to pour into a mould simultaneously, and intensity aspect has again further lifting.
Accompanying drawing explanation
The present invention has drawings described below:
Fig. 1 is the schematic cross-section of the first embodiment of very-high performance coupled column provided by the invention.
Fig. 2 is the schematic cross-section of the second embodiment of very-high performance coupled column provided by the invention.
Detailed description of the invention
Accompanying drawing illustrates technical scheme and embodiment, further describes each relevant details and the operation principle thereof of embodiment below in conjunction with accompanying drawing.
With reference to shown in Fig. 1, the very-high performance coupled column that the first embodiment of the present invention provides, including high-strength concrete inner core 1, high-strength concrete inner core 1 periphery is enclosed with interior steel pipe 2, interior steel pipe 2 periphery is enclosed with engineered cementitious based composites layer 3, engineered cementitious based composites layer 3 periphery is enclosed with FRP pipe 4, described engineered cementitious based composites layer 3 comprises cement, sand and/or mineral and closes material, water, steel fibre and PVA fiber, wherein length of steel fiber more than 6 millimeters, diameter more than 0.12 millimeter, the length of described PVA fiber is more than 6 millimeters.In the present embodiment, described interior steel pipe 2 and FRP pipe 4 are circle.
With reference to shown in Fig. 1, present invention also offers the method manufacturing above-mentioned very-high performance coupled column, comprising the following steps: A, fixed packet containing interior steel pipe 2 and FRP pipe 4 at interior very-high performance coupled column cast template;B, inside steel pipe 2 inject high-strength concrete, between inside steel pipe 2 and FRP pipe 4, injects engineered cementitious based composites;C, rear formation high-strength concrete inner core 1 to be solidified and engineered cementitious based composites layer 3.
With reference to shown in Fig. 2, the second embodiment of the present invention is essentially identical with the first embodiment, differs only in: in the present embodiment, steel pipe 2 is square, and FRP pipe 4 is rounded.

Claims (5)

1. a very-high performance coupled column, is characterized in that: include high-strength concrete inner core, and high-strength concrete inner core periphery is enclosed with interior steel pipe, and interior steel pipe periphery is enclosed with engineered cementitious based composites layer, and engineered cementitious based composites layer periphery is enclosed with FRP pipe.
2. very-high performance coupled column according to claim 1, is characterized in that: described engineered cementitious based composites layer comprises cement, sand and/or mineral and closes material, water, steel fibre and PVA fiber.
3. very-high performance coupled column according to claim 1 and 2, is characterized in that: described length of steel fiber more than 6 millimeters, diameter is more than 0.12 millimeter.
4. very-high performance coupled column according to claim 1 and 2, is characterized in that: the length of described PVA fiber is more than 6 millimeters.
5. a method for very-high performance coupled column described in manufacturing claims 1 or 2, is characterized in that: comprise the following steps: A, fixed packet containing interior steel pipe and FRP pipe at interior very-high performance coupled column cast template;B, inside steel pipe inject high-strength concrete, between inside steel pipe and FRP pipe, injects engineered cementitious based composites;C, rear formation high-strength concrete inner core to be solidified and engineered cementitious based composites layer.
CN201610293282.8A 2016-05-06 2016-05-06 Ultrahigh-performance assembly column and manufacturing method thereof Pending CN105781017A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610293282.8A CN105781017A (en) 2016-05-06 2016-05-06 Ultrahigh-performance assembly column and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610293282.8A CN105781017A (en) 2016-05-06 2016-05-06 Ultrahigh-performance assembly column and manufacturing method thereof

Publications (1)

Publication Number Publication Date
CN105781017A true CN105781017A (en) 2016-07-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610293282.8A Pending CN105781017A (en) 2016-05-06 2016-05-06 Ultrahigh-performance assembly column and manufacturing method thereof

Country Status (1)

Country Link
CN (1) CN105781017A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106812229A (en) * 2017-03-22 2017-06-09 华侨大学 Combination constraint double steel plate concrete shear force wall and its construction method
CN107143087A (en) * 2017-04-26 2017-09-08 北京工业大学 A kind of superposed column and preparation method thereof
CN107165336A (en) * 2017-04-26 2017-09-15 北京工业大学 A kind of combination beam and its manufacture method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101177965A (en) * 2007-12-06 2008-05-14 合肥工业大学 Steel pipe-FRP pipe core concrete combination structure
CN104129951A (en) * 2014-08-06 2014-11-05 杭州固益强新材料科技有限公司 Self-cleaned cement based composite material with high toughness and preparation method of self-cleaned cement based composite material
CN105003027A (en) * 2015-07-29 2015-10-28 温州大学 FRP restrained pipe regenerated mixed concrete combination column
CN105060784A (en) * 2015-08-03 2015-11-18 东南大学 High-ductility cement-based material for repairing hydraulic outlet works, and preparation method thereof
CN105130297A (en) * 2015-07-29 2015-12-09 中交一公局第六工程有限公司 Super-fluid PVA fiber concrete and preparation method thereof
CN105442755A (en) * 2015-07-30 2016-03-30 孙晓林 Recycled concrete column

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101177965A (en) * 2007-12-06 2008-05-14 合肥工业大学 Steel pipe-FRP pipe core concrete combination structure
CN104129951A (en) * 2014-08-06 2014-11-05 杭州固益强新材料科技有限公司 Self-cleaned cement based composite material with high toughness and preparation method of self-cleaned cement based composite material
CN105003027A (en) * 2015-07-29 2015-10-28 温州大学 FRP restrained pipe regenerated mixed concrete combination column
CN105130297A (en) * 2015-07-29 2015-12-09 中交一公局第六工程有限公司 Super-fluid PVA fiber concrete and preparation method thereof
CN105442755A (en) * 2015-07-30 2016-03-30 孙晓林 Recycled concrete column
CN105060784A (en) * 2015-08-03 2015-11-18 东南大学 High-ductility cement-based material for repairing hydraulic outlet works, and preparation method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106812229A (en) * 2017-03-22 2017-06-09 华侨大学 Combination constraint double steel plate concrete shear force wall and its construction method
CN107143087A (en) * 2017-04-26 2017-09-08 北京工业大学 A kind of superposed column and preparation method thereof
CN107165336A (en) * 2017-04-26 2017-09-15 北京工业大学 A kind of combination beam and its manufacture method

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Application publication date: 20160720

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