CN106381956A - Concrete prefabricated shell-regenerated mixed concrete combination column and preparation method thereof - Google Patents
Concrete prefabricated shell-regenerated mixed concrete combination column and preparation method thereof Download PDFInfo
- Publication number
- CN106381956A CN106381956A CN201610884264.7A CN201610884264A CN106381956A CN 106381956 A CN106381956 A CN 106381956A CN 201610884264 A CN201610884264 A CN 201610884264A CN 106381956 A CN106381956 A CN 106381956A
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- China
- Prior art keywords
- concrete
- built
- steel pipe
- prefabricated shell
- coupled column
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
Abstract
The invention discloses a concrete prefabricated shell-regenerated mixed concrete combination column which comprises a reinforced concrete prefabricated shell with a steel reinforcement skeleton inside, a built-in steel pipe and a regenerated mixed concrete layer in the inner cavity of the built-in steel pipe sequentially from outside to inside, wherein studs embedded into the reinforced concrete prefabricated shell are uniformly spaced on the outer wall of the built-in steel pipe. The invention also discloses a preparation method of the concrete prefabricated shell-regenerated mixed concrete combination column. For the concrete prefabricated shell-regenerated mixed concrete combination column disclosed by the invention, the prefabricated concrete shell is relatively light and convenient to transport, and industrial production can be realized; and moreover, the reinforced concrete prefabricated shell poured on the outer surface of the built-in steel pipe realizes a restraint and protection effect on the built-in steel pipe and enhances the fireproof and anti-corrosion properties of the concrete prefabricated shell-regenerated mixed concrete combination column.
Description
Technical field
The present invention relates to waste and old concrete recycle utilization technology field is and in particular to a kind of concrete prefabricated shell-regeneration
Mix concrete coupled column and preparation method thereof.
Background technology
Compare cast-in-situ concrete columns, assembly concrete prefabricated post has that production efficiency is higher, environmental pollution is relatively light, material
The advantage such as energy waste is less, construction quality is preferable, at home and abroad civil construction field be used widely.But assembled coagulation
Native prefabricated post deadweight is larger, does not utilize transport, and hoisting difficulty is big.Present invention deadweight is relatively light, and transport, convenient construction can be effective
Solve the above problems.
Steel core concrete column is a kind of combined member being widely used in civil construction field, on the one hand makes steel pipe and mixes
Solidifying earth pillar does not need template, and efficiency of construction is higher；The anti-seismic performance of another aspect steel core concrete column is substantially better than conventional rebar
Concrete column.But steel are highly prone to corrode, and steel have the defect being difficult to avoid that, example as construction material in terms of fire prevention
As yield point, tensile strength and elastic modelling quantity etc. all drastically can decline because of the rising of temperature.In built-in outer surface of steel tube arrangement
Armored concrete premanufactured skin, both can play anti-corrosion, fireproof effect, can apply additionally about to steel core concrete column again
Bundle, strengthens its mechanical property.
Due to the exploitation welding of natural sand stone and reserves day by day reduce, waste and old concrete is as a kind of valuable " special
Different resource ", its recycling increasingly arouses extensive attention at home and abroad.But waste and old concrete range of application is less, should
Single with mode, the range of application how effectively expanding waste and old concrete is letter problem to be solved.The present invention will be useless
Old coagulation provides a kind of effective application approach.
In sum, prior art exist assembly concrete prefabricated post deadweight larger, steel core concrete column fire prevention, anti-corrosion
The problems such as range of application letter of poor-performing and waste and old concrete is to be expanded.
Content of the invention
It is an object of the invention to overcoming the deficiencies in the prior art, provide concrete prefabricated shell-renewable hybrid concrete
Coupled column and preparation method thereof.On the one hand prefabricated concrete prefabricated shell deadweight is relatively light, convenient transport, it is possible to achieve industrialization
Produce；On the other hand the armored concrete premanufactured skin pouring in built-in outer surface of steel tube plays constraint and protects to built-in steel pipe
Effect, enhances concrete prefabricated shell-fire prevention of renewable hybrid concrete coupled column, antiseptic property.
The technical scheme that the present invention realizes above-mentioned purpose is：
A kind of concrete prefabricated shell-renewable hybrid concrete coupled column, include successively from outside to inside in set the steel of framework of steel reinforcement
Reinforced concrete premanufactured skin, built-in steel pipe and be arranged on renewable hybrid concrete layer in described built-in steel pipe inner chamber, described
The peg being welded with embedded described armored concrete premanufactured skin is evenly spaced apart on built-in outer wall of steel pipe.
Further, the thickness of described armored concrete premanufactured skin is 12 ~ 20 cm, described skeleton include vertical muscle with
Stirrup.
Further, the shape of cross section of described built-in steel pipe includes circular, square, polygon.
Further, the wall thickness of described built-in steel pipe is 6 ~ 16 mm.
Further, described peg is T-shaped.
Further, described renewable hybrid concrete layer includes the novel concrete alternately pouring and throwing in and waste and old mixed
Solidifying soil block body.
Further, described waste and old concrete block is that old buildings, structures, road, bridge or dykes and dams are removed
And remove the waste and old concrete block after protective layer and all or part of reinforcing bar.
Further, the characteristic size of described waste and old concrete block is 100 more than mm.
According to the preparation method of described concrete prefabricated shell-renewable hybrid concrete coupled column, including step：
（1）Make framework of steel reinforcement, be evenly spaced apart to be provided with the built-in steel pipe of peg on outer wall according to design size；
（1）Pour described armored concrete premanufactured skin using inside and outside template, wherein, when pouring, built-in steel pipe does inner template, pours
After building up type, built-in steel pipe is combined closely by peg with armored concrete premanufactured skin and is formed entirety；
（3）Overall described concrete prefabricated shell and built-in lifting steel pipes will be formed to job site, in described built-in steel
Alternately pour novel concrete inside pipe and throw in waste and old concrete block, ultimately form described concrete prefabricated shell-regeneration and mix
Close concrete combination column.
Further, described waste and old concrete block and the mass ratio of novel concrete are 1:3 ~ 1:2.
The present invention has such advantages as with respect to prior art：
（1）Concrete prefabricated shell, from heavy and light, is readily transported, constructs.
（2）The prefabricated condition meeting industrialized production of concrete prefabricated shell, manufacturing speed is fast, low cost, quality are high.
（3）Make the more environmental protection of renewable hybrid concrete material therefor.
（4）The armored concrete premanufactured skin pouring in built-in outer surface of steel tube plays constraint to built-in steel pipe and protection is made
With enhancing concrete prefabricated shell-fire prevention of renewable hybrid concrete coupled column, antiseptic property.
（5）Poured using waste and old concrete block, be enormously simplify broken, sieve when waste and old concrete recycles
The processing procedure such as divide, purify, saving a large amount of manpowers, time and the energy, the efficient circulation of achievable waste and old concrete utilizes.
（6）The peg being welded in built-in outer surface of steel tube both can resist longitudinal shear, can make built-in steel pipe and steel again
Reinforced concrete premanufactured skin is combined closely.
Brief description
Fig. 1 is the longitudinal sectional drawing of the embodiment of the present invention.
Fig. 2 is the transverse cross-sectional view of the embodiment of the present invention.
Fig. 3 is the sectional axonometric drawing of the embodiment of the present invention.
In figure show：1- stirrup；2- indulges muscle；3- peg；The built-in steel pipe of 4-；5- novel concrete；6- waste and old concrete block
Body.
Specific embodiment
Below by specific embodiment, the purpose of the present invention is described in further detail, embodiment is unable to here one by one
Repeat, but embodiments of the present invention are not therefore defined in following examples.
Embodiment 1
As shown in Figure 1, 2, 3, a kind of concrete prefabricated shell-renewable hybrid concrete coupled column, includes interior from outside to inside successively
If the armored concrete premanufactured skin of framework of steel reinforcement, built-in steel pipe and the regenerative mixed being arranged in described built-in steel pipe inner chamber are mixed
Solidifying soil layer, described built-in outer wall of steel pipe is evenly spaced apart the peg being welded with embedded described armored concrete premanufactured skin
3.
The thickness of described armored concrete premanufactured skin is 12 ~ 20 cm, built-in concrete prefabricated outer positioned at described steel pipe
Skeleton in shell includes the stirrup 1 being uniformly arranged and vertical muscle 2, and vertical muscle 2 spacing is 45 mm, and stirrup 1 spacing is 150 mm.
In the present embodiment, stirrup 1 adopts the HRB335 level reinforcing bar of a diameter of 8 mm, and spacing is 150 mm.
In the present embodiment, vertical muscle 2 adopts the HRB335 level reinforcing bar of a diameter of 12 mm, and spacing is 70 mm, and length is 8000
mm.
In the present embodiment, described peg 3 is T-shaped, using the peg of Φ 10, spacing 250 mm.
The shape of cross section of described built-in steel pipe 4 includes circular, square, polygon, in the present embodiment, described built-in
Steel pipe 4 section is square, and the length of side is 480 mm, wall thickness 6 mm, length of steel pipe 8000 mm, type of steels Q235, actual measurement surrender
Intensity 269.8 MPa, tensile strength 407.7 MPa.
In the present embodiment, the characteristic size of waste and old concrete block 6 is 120 ~ 160 mm, is that an old buildings is torn open
Remove and remove the waste and old concrete block after protective layer and whole reinforcing bar.
In the present embodiment, novel concrete 5 is natural aggregate concrete, and novel concrete 5 and waste and old concrete block 6 mass
Than for 1:2.
In the present embodiment, the perimeter of section of concrete prefabricated shell-renewable hybrid concrete coupled column is 720 mm.
On the other hand, the preparation method of the concrete prefabricated shell-renewable hybrid concrete coupled column of above-described embodiment, bag
Include step：
（1）Make framework of steel reinforcement, be evenly spaced apart to be provided with the built-in steel pipe 4 of peg 3 on outer wall according to design size；
（1）Pour described armored concrete premanufactured skin using inside and outside template, wherein, when pouring, built-in steel pipe 4 does inner template,
After pouring molding, built-in steel pipe 4 is combined closely by peg with armored concrete premanufactured skin and is formed entirety；
（3）The described concrete prefabricated shell and built-in steel pipe 4 that form entirety are lifted to job site, in described built-in steel
Alternately pour novel concrete 5 inside pipe 4 and throw in waste and old concrete block 6, ultimately form described concrete prefabricated shell-regeneration
Mix concrete coupled column.
Specifically, in the present embodiment, novel concrete 5 is natural aggregate concrete, and novel concrete 5 and waste and old concrete
Block 6 mass ratio is 1:2.
As mentioned above, you can preferably realize the present invention.
The above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not to the present invention
Embodiment restriction.For those of ordinary skill in the field, can also make on the basis of the above description
The change of other multi-forms or variation.There is no need to be exhaustive to all of embodiment.All the present invention's
Any modification, equivalent and improvement made within spirit and principle etc., should be included in the protection of the claims in the present invention
Within the scope of.
Claims (10)
1. a kind of concrete prefabricated shell-renewable hybrid concrete coupled column it is characterised in that：Set in including successively from outside to inside
The armored concrete premanufactured skin of framework of steel reinforcement, built-in steel pipe and be arranged on the regenerative mixed coagulation in described built-in steel pipe inner chamber
Soil layer, described built-in outer wall of steel pipe is evenly spaced apart the peg being welded with embedded described armored concrete premanufactured skin
（3）.
2. concrete prefabricated shell-renewable hybrid concrete coupled column according to claim 1 it is characterised in that：Described
The thickness of armored concrete premanufactured skin is 12 ~ 20 cm, and described skeleton includes the vertical muscle being uniformly arranged（2）With stirrup（1）.
3. concrete prefabricated shell-renewable hybrid concrete coupled column according to claim 1 it is characterised in that：Described
Built-in steel pipe（4）Shape of cross section include circular, square, polygon.
4. concrete prefabricated shell-renewable hybrid concrete coupled column according to claim 1 it is characterised in that：Described
Built-in steel pipe（4）Wall thickness be 6 ~ 16 mm.
5. concrete prefabricated shell-renewable hybrid concrete coupled column according to claim 1 it is characterised in that：Described
Peg（3）For T-shaped.
6. concrete prefabricated shell-renewable hybrid concrete coupled column according to claim 1 it is characterised in that：Described
Renewable hybrid concrete layer include the novel concrete that alternately pours and throw in（5）And waste and old concrete block（6）.
7. concrete prefabricated shell-renewable hybrid concrete coupled column according to claim 6 it is characterised in that：Described
Waste and old concrete block（6）Remove and remove protective layer and all for old buildings, structures, road, bridge or dykes and dams
Or the waste and old concrete block after part reinforcing bar.
8. concrete prefabricated shell-renewable hybrid concrete coupled column according to claim 6 it is characterised in that：Described
Waste and old concrete block（6）Characteristic size 100 more than mm.
9. the preparation of concrete prefabricated shell-renewable hybrid concrete coupled column according to any one of claim 1 to 8
Method is it is characterised in that include step：
（1）Make framework of steel reinforcement, be evenly spaced apart to be provided with peg on outer wall according to design size（3）Built-in steel pipe（4）；
（1）Pour described armored concrete premanufactured skin using inside and outside template, wherein, built-in steel pipe when pouring（4）Do internal model
Plate, after pouring molding, built-in steel pipe（4）Being combined closely by peg with armored concrete premanufactured skin, it is overall to be formed；
（3）Overall described concrete prefabricated shell and built-in steel pipe will be formed（4）Lift to job site, described built-in
Steel pipe（4）Inside alternately pours novel concrete（5）With input waste and old concrete block（6）, ultimately form described concrete prefabricated
Shell-renewable hybrid concrete coupled column.
10. preparation method according to claim 9 it is characterised in that：Described waste and old concrete block and novel concrete
Mass ratio is 1:3 ~ 1:2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610884264.7A CN106381956A (en) | 2016-10-09 | 2016-10-09 | Concrete prefabricated shell-regenerated mixed concrete combination column and preparation method thereof |
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|---|---|---|---|
| CN201610884264.7A CN106381956A (en) | 2016-10-09 | 2016-10-09 | Concrete prefabricated shell-regenerated mixed concrete combination column and preparation method thereof |
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Cited By (3)
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| CN106812248A (en) * | 2017-02-21 | 2017-06-09 | 中恒建设集团有限公司 | A kind of construction refuse regenerated concrete superposed column and its construction technology |
| CN114718247A (en) * | 2022-04-25 | 2022-07-08 | 华南理工大学 | UHPC (ultra high performance concrete) partially-prefabricated column provided with steel pipes and U-shaped stirrups and construction method of UHPC partially-prefabricated column |
| CN114892889A (en) * | 2022-05-07 | 2022-08-12 | 华南理工大学 | UHPC (ultra high performance concrete) partially prefabricated column with angle steel and batten plate and construction method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106812248A (en) * | 2017-02-21 | 2017-06-09 | 中恒建设集团有限公司 | A kind of construction refuse regenerated concrete superposed column and its construction technology |
| CN114718247A (en) * | 2022-04-25 | 2022-07-08 | 华南理工大学 | UHPC (ultra high performance concrete) partially-prefabricated column provided with steel pipes and U-shaped stirrups and construction method of UHPC partially-prefabricated column |
| CN114718247B (en) * | 2022-04-25 | 2023-08-04 | 华南理工大学 | UHPC part prefabricated column provided with steel pipe and U-shaped stirrup and construction method thereof |
| CN114892889A (en) * | 2022-05-07 | 2022-08-12 | 华南理工大学 | UHPC (ultra high performance concrete) partially prefabricated column with angle steel and batten plate and construction method thereof |
| CN114892889B (en) * | 2022-05-07 | 2024-02-02 | 华南理工大学 | UHPC part prefabricated column provided with angle steel and batten plate and construction method thereof |
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