CN101487333A - Recycled concrete superposed column and its implementing method - Google Patents
Recycled concrete superposed column and its implementing method Download PDFInfo
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- CN101487333A CN101487333A CNA2009100461577A CN200910046157A CN101487333A CN 101487333 A CN101487333 A CN 101487333A CN A2009100461577 A CNA2009100461577 A CN A2009100461577A CN 200910046157 A CN200910046157 A CN 200910046157A CN 101487333 A CN101487333 A CN 101487333A
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- 239000004567 concrete Substances 0.000 title claims abstract description 137
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000002699 waste material Substances 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 239000002131 composite material Substances 0.000 claims abstract 10
- 230000002093 peripheral effect Effects 0.000 claims description 29
- 238000013461 design Methods 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 abstract description 3
- 230000008929 regeneration Effects 0.000 description 21
- 238000011069 regeneration method Methods 0.000 description 21
- 230000003014 reinforcing effect Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 6
- 210000003205 muscle Anatomy 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
一种再生混凝土叠合柱及其实现方法，叠合柱采用新的截面形状，其结构包括：内部预制再生混凝土芯柱或从建筑物中拆除下来的废弃混凝土柱(包括圆柱和方柱)，其中再生混凝土芯柱表面不进行处理、自然粗糙，内部配有一定量的钢筋以保证其在运输和吊装过程中不发生破坏，废弃混凝土柱表面应进行表面处理，去除表面抹灰，通过打磨使其表面粗糙。还包括外部现浇普通混凝土外围柱，其中普通混凝土内配有钢筋。本发明改善了再生混凝土的耐久性能及整个再生混凝土柱的受力性能等，具有良好的市场前景，可以加快推广再生混凝土和废弃混凝土的推广应用。
A recycled concrete composite column and its realization method. The composite column adopts a new cross-sectional shape, and its structure includes: an internal prefabricated recycled concrete core column or an abandoned concrete column (including a column and a square column) removed from a building, Among them, the surface of the recycled concrete core column is not treated and is naturally rough. A certain amount of steel bars are provided inside to ensure that it will not be damaged during transportation and hoisting. rough surface. Also included are external cast-in-place ordinary concrete perimeter columns with reinforcement within the ordinary concrete. The invention improves the durability of the recycled concrete and the mechanical performance of the entire recycled concrete column, has a good market prospect, and can accelerate the popularization and application of recycled concrete and waste concrete.
Description
Technical field
The invention belongs to building engineering field, relate to the recycled concrete superposed column structure.
Background technology
Under the present circumstances, the annual waste concrete from the building waste that old building removes in the whole nation just has 1,360 ten thousand t, add that annual newly constructed house produces the waste concrete that building waste produced of 4,000 ten thousand t, its huge disposal cost and the environmental problem that causes thus are also very outstanding.In order to reduce exploitation to greatest extent, must increase to greatest extent construction refuse regenerated utilization to natural resource.Therefore the research and the application of the processing of building waste and application technology are imperative.Yet at present because the inherence of regeneration aggregate damage and owing to its surface to have adsorbed the water absorption rate that the old mortar of one deck causes big, cause intensity, shrinkage and the endurance quality etc. of its regeneration concrete that is made into poor, greatly limited its scope of application than ordinary concrete.In order to promote the utilization of regeneration concrete, by the mechanical characteristic in analytical column cross section, invented a kind of recycled concrete superposed column form, can directly or indirectly utilize again the discarded concrete post.
Summary of the invention
The objective of the invention is to provides a kind of recycled concrete superposed column and its implementation at many, the defect of high cost of discarded concrete regeneration operation, and it is simple in structure, is easy to construction, can also carry out twice laid, saves cost greatly.
For reaching above purpose, solution of the present invention is:
A kind of recycled concrete superposed column, it comprises the stem stem that discarded concrete is made, the stem stem periphery is provided with the peripheral concrete post.
Described stem stem and peripheral concrete post center.
The ratio of the length and width size in described stem stem cross section and superposed column cross section length and width size is between 1/2-2/3.
It is circular or square that described stem stem and peripheral concrete post are respectively.
The implementation method of described recycled concrete superposed column is: the periphery cast peripheral concrete post of making stem stem at discarded concrete.
Described stem stem is discarded concrete post or regeneration concrete post.
Described discarded concrete post is a whole concrete column or is spliced by a plurality of concrete short columns that surface finish is coarse, and strength grade reaches C20 or more than the C20.
Described a plurality of concrete short column, its when splicing with post in reinforcing bar dig out and carry out butt welding or sleeve pipe connects, and in peripheral fluid concrete moulding.
Described regeneration concrete post adopts regeneration concrete to make according to " Code for design of concrete structures " cast.
Described peripheral concrete post is by " Code for design of concrete structures " cast, and its strength grade of concrete is than the high grade of stem stem.
One class recycled concrete superposed column, its structure comprises: the discarded concrete post that remove from building an inside, wherein its surface is handled, remove surface plastering, make its rough surface by polishing.When factory focuses on, can adopt cutter face machine, can guarantee to reach and remove laitance coating, increase the adhesion stress of secondary between building, reach shaggy purpose.When equipment when not being very complete, can at concrete surface one hammer one cutter, dig out pit not of uniform size by the workman with drill rod, hand hammer, make it rough surface, perhaps adopt the technology of plucking.Can adopt rebound method to determine its intensity for the discarded concrete post of removing, determine whether it can utilize (strength grade of general requirements discarded concrete post reach C20 or more than the C20) again according to the result who detects.The peripheral post of one outside cast-in-place ordinary concrete wherein is furnished with reinforcing bar in the ordinary concrete.Innovation of the present invention is: the core at conventional concrete column adopts the discarded concrete post under the dismounting in the building, so both avoid discarded concrete to need broken series of processes of processing, and can guarantee shaft center compression resistant bearing capacity, anti-bending bearing capacity and the anti-seismic performance of post again.Compare the reduction cost with the ordinary concrete post, save material, reduction of erection time, and protection environment.
Another kind of recycled concrete superposed column, its structure comprises: an inner prefabricated regeneration concrete stem stem, regeneration concrete stem stem adopt the regeneration concrete cast to form, and its regenerated coarse aggregate substitution rate is 100%, and match ratio designs with reference to prior art.Wherein does not handle on regeneration concrete stem stem surface, coarse naturally, and inside is furnished with a certain amount of reinforcing bar and does not destroy in transportation and hoisting process to guarantee it.The peripheral post of one outside cast-in-place ordinary concrete wherein is furnished with reinforcing bar in the ordinary concrete.Innovation of the present invention is: regeneration concrete is prefabricated into stem stem, has improved speed of application, solved the endurance issues of regeneration concrete.
Recycled concrete superposed column as mentioned above, wherein the strength grade of concrete that adopted of peripheral concrete post is than the high grade of stem stem (10MPa).
Selecting for use of above-mentioned peripheral pillar longitudinal reinforcement and compound stirrup is identical with conventional concrete column.Vertical muscle of peripheral post and peripheral post tie muscle adopt HRB400 and HRB335 grade reinforcing steel, and concrete mechanics parameter is seen " Code for design of concrete structures " (GB50010-2002).
The cross section of recycled concrete superposed column of the present invention is thought of as circular and square.
Stem stem of the present invention cross section can be circular or square (comprising square or rhombus) cross section, and the ratio of length and width size in stem stem cross section (if be radius then during cylinder, then being the length of side during square column) and column section length and width size is between 1/2-2/3.Adopt factory's surface-treated discarded concrete stem stem quality to control easily, and stress performance is good, can be better and the acting in conjunction of peripheral concrete post, can improve its resistance to compression bearing capacity and anti-seismic performance.
Owing to adopted such scheme, the present invention to have following characteristics: stem stem adopts discarded concrete post or prefabricated regeneration concrete post, building castoff has been carried out utilizing again, and reduced regeneration concrete and utilized middle series of processes; The peripheral concrete post has partly improved the endurance quality of stem stem part; The anti-seismic performance that reinforcing bar that the stem stem part was furnished with originally and stirrup have improved superposed column; After the peripheral concrete topping ftractureed, peels off, peripheral reinforcing bar and concrete bonding weakened, and still have good bonding between stem stem reinforcing bar and the concrete; The core reinforcing bar can not buckled; Even peripheral concrete destroys, be furnished with the stem stem of reinforcing bar and still can resist vertical load and certain horizontal loading, prevent big shake structural collapse down.Directly adopt the stem stem of discarded concrete post as superposed column, it is simple that node area reinforced concrete beam column arrangement of reinforcement structure is handled, greatly convenient construction.
Description of drawings
Fig. 1 is the superimposed cylindrical cross-section of the embodiment of the invention (stem stem is an a cylinder) form schematic diagram.
Fig. 2 is the superimposed cylindrical cross-section of the embodiment of the invention (stem stem is an a square column) form schematic diagram.
Fig. 3 is the superimposed square column of embodiment of the invention cross section (stem stem is an a square column) form schematic diagram.
Fig. 4 is the superimposed square column of embodiment of the invention cross section (stem stem is an a cylinder) form schematic diagram.
Fig. 5 is the superimposed square column of embodiment of the invention cross section (stem stem is an a rhombus column) form schematic diagram.
Fig. 6 is the node schematic diagram of beam column built from concrete.
The specific embodiment
The present invention is further illustrated below in conjunction with the accompanying drawing illustrated embodiment.
When stem stem 1 adopted the discarded concrete post: the surfacing of discarded concrete post can adopt factory to focus on or in-situ processing, removed surface plastering, and polishing makes its rough surface, lifting then; After stem stem 1 carries out centering, carry out the reinforcing bar of colligation peripheral concrete post 2 again, comprise vertical muscle 3 of pillar and stirrup 4, the reinforcing bar in the beam column interpenetrates, and last supporting template is built peripheral concrete, should guarantee peripheral concrete post 2 and stem stem 1 how much centerings.If when adopting a plurality of discarded concrete short columns to splice, the reinforcing bar in the short column should be dug out, use butt welding or sleeve pipe to connect, again in the moulding of periphery cast ordinary concrete.
When stem stem 1 adopted prefabricated regeneration concrete post: the match ratio of the regeneration concrete of prefabricated stem stem 1 was by get the existing regeneration concrete technology of match ratio design reference at specific situation design.The reinforcing bar that prefabricated regeneration concrete stem stem 1 is furnished with a certain amount of (minimum steel ratio that is no less than the current specifications regulation) does not destroy in transportation and hoisting process to guarantee it; The floating processing of Denging is not carried out on the surface of prefabricated regeneration concrete stem stem 1, make it coarse naturally, and maintenance just can be dispatched from the factory under natural environment after 28 days; After being transported to the construction site, its process adopts the discarded concrete post as stem stem 1, and on-the-spot supporting is used for pouring into a mould the template of peripheral concrete, and fixes steel bar stress, peripheral concrete post 2 and stem stem 1 centering.
The pillar stirrup 4 that adopts when the peripheral concrete of regeneration concrete post is poured into a mould, the diameter of the vertical muscle 3 of pillar and spacing are all by existing " Code for design of concrete structures " (GB50010-2002).It selects for use consistent with the selecting method of conventional concrete column reinforcing bar; The vertical muscle 3 of peripheral concrete post and stirrup 4 adopt HRB400 and HRB335 grade reinforcing steel respectively, and its concrete technical data with reference to existing " Code for design of concrete structures " (GB50010-2002).Peripheral concrete post 2 adopts ordinary concrete to build, and strength grade is C30～C50.
Recycled concrete superposed column structural outside layers structure of the present invention (structure that comprises vertical muscle part of pillar and pillar stirrup part) is identical with conventional concrete column structure, and the pillar stirrup can also adopt the stirrup form of other shape according to actual needs among the present invention.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.The person skilled in the art obviously can easily make various modifications to these embodiment, and needn't pass through performing creative labour being applied in the General Principle of this explanation among other embodiment.Therefore, the invention is not restricted to the embodiment here, those skilled in the art should be within protection scope of the present invention for improvement and modification that the present invention makes according to announcement of the present invention.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2009100461577A CN101487333A (en) | 2009-02-13 | 2009-02-13 | Recycled concrete superposed column and its implementing method |
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| CNA2009100461577A CN101487333A (en) | 2009-02-13 | 2009-02-13 | Recycled concrete superposed column and its implementing method |
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| CN101487333A true CN101487333A (en) | 2009-07-22 |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102423A (en) * | 2011-03-09 | 2011-06-22 | 湖南大学 | Sleeve reinforced concrete column |
| CN102493602A (en) * | 2011-11-29 | 2012-06-13 | 东南大学 | Ductile concrete column capable of delaying local buckling of steel bars and manufacturing method thereof |
| CN102635064A (en) * | 2012-04-28 | 2012-08-15 | 西安建筑科技大学 | Pre-tensioned prestressing steel pipe high-strength concrete superposition bridge pier and construction method thereof |
| CN102635063A (en) * | 2012-04-28 | 2012-08-15 | 西安建筑科技大学 | Post-tensioned prestressing steel pipe high-strength concrete superposition bridge pier and construction method thereof |
| CN103541504A (en) * | 2013-09-23 | 2014-01-29 | 沈阳建筑大学 | Special-shaped section steel tube recycled concrete core column |
| CN104005517A (en) * | 2014-04-12 | 2014-08-27 | 北京工业大学 | Concrete-filled square steel pipe built-in round steel pipe recycled concrete bottom reinforced column and making method |
| CN104234316A (en) * | 2014-09-10 | 2014-12-24 | 哈尔滨工业大学深圳研究生院 | Steel-tube square reinforced concrete member and preparation method thereof |
| CN104563516A (en) * | 2014-12-31 | 2015-04-29 | 中铁建工集团有限公司 | Steel tube superposed column and construction method for core concrete pouring of the steel tube superposed column |
| CN105298020A (en) * | 2015-11-26 | 2016-02-03 | 华南理工大学 | Semi-precast circular steel pipe regenerated mixed concrete pillar and preparation method thereof |
| CN106381956A (en) * | 2016-10-09 | 2017-02-08 | 华南理工大学 | Concrete prefabricated shell-regenerated mixed concrete combination column and preparation method thereof |
| CN106437034A (en) * | 2016-11-29 | 2017-02-22 | 南昌大学 | Steel tube and semi-prefabricated semi-cast-in-place construction waste recycled concrete combined column and preparation method thereof |
| CN106760210A (en) * | 2017-01-10 | 2017-05-31 | 中铁第勘察设计院集团有限公司 | Reinforced Concrete Double repeats gynostemium and its construction method |
| WO2017211329A3 (en) * | 2016-06-07 | 2018-02-01 | 华南理工大学 | Semi-prefabricated concrete-filled steel tubular column having inner high-strength steel, and fabrication method for same |
| CN107882271A (en) * | 2017-10-17 | 2018-04-06 | 湖北工程学院 | A kind of marine sand concrete superposed column using UHPC outsourcings |
| CN108824834A (en) * | 2018-06-28 | 2018-11-16 | 山东建筑大学 | Wait tear the regeneration method of reinforced column Component- Based Development level in structure open |
| CN108952009A (en) * | 2018-09-07 | 2018-12-07 | 三筑工科技有限公司 | Prefabricated superposed column, reinforced column and assembled architecture body |
| CN110002799A (en) * | 2019-03-12 | 2019-07-12 | 中国矿业大学 | A kind of method that low energy consumption comprehensive utilizes discarded concrete and seawater sea sand |
| CN113463843A (en) * | 2020-03-31 | 2021-10-01 | 同济大学 | High-bearing recycled concrete combined column and construction method thereof |
-
2009
- 2009-02-13 CN CNA2009100461577A patent/CN101487333A/en active Pending
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102423A (en) * | 2011-03-09 | 2011-06-22 | 湖南大学 | Sleeve reinforced concrete column |
| CN102493602A (en) * | 2011-11-29 | 2012-06-13 | 东南大学 | Ductile concrete column capable of delaying local buckling of steel bars and manufacturing method thereof |
| CN102635064A (en) * | 2012-04-28 | 2012-08-15 | 西安建筑科技大学 | Pre-tensioned prestressing steel pipe high-strength concrete superposition bridge pier and construction method thereof |
| CN102635063A (en) * | 2012-04-28 | 2012-08-15 | 西安建筑科技大学 | Post-tensioned prestressing steel pipe high-strength concrete superposition bridge pier and construction method thereof |
| CN103541504A (en) * | 2013-09-23 | 2014-01-29 | 沈阳建筑大学 | Special-shaped section steel tube recycled concrete core column |
| CN104005517A (en) * | 2014-04-12 | 2014-08-27 | 北京工业大学 | Concrete-filled square steel pipe built-in round steel pipe recycled concrete bottom reinforced column and making method |
| CN104234316A (en) * | 2014-09-10 | 2014-12-24 | 哈尔滨工业大学深圳研究生院 | Steel-tube square reinforced concrete member and preparation method thereof |
| CN104563516A (en) * | 2014-12-31 | 2015-04-29 | 中铁建工集团有限公司 | Steel tube superposed column and construction method for core concrete pouring of the steel tube superposed column |
| CN105298020A (en) * | 2015-11-26 | 2016-02-03 | 华南理工大学 | Semi-precast circular steel pipe regenerated mixed concrete pillar and preparation method thereof |
| CN105298020B (en) * | 2015-11-26 | 2017-02-22 | 华南理工大学 | Semi-precast circular steel pipe regenerated mixed concrete pillar and preparation method thereof |
| WO2017211329A3 (en) * | 2016-06-07 | 2018-02-01 | 华南理工大学 | Semi-prefabricated concrete-filled steel tubular column having inner high-strength steel, and fabrication method for same |
| CN106381956A (en) * | 2016-10-09 | 2017-02-08 | 华南理工大学 | Concrete prefabricated shell-regenerated mixed concrete combination column and preparation method thereof |
| CN106437034A (en) * | 2016-11-29 | 2017-02-22 | 南昌大学 | Steel tube and semi-prefabricated semi-cast-in-place construction waste recycled concrete combined column and preparation method thereof |
| CN106760210A (en) * | 2017-01-10 | 2017-05-31 | 中铁第勘察设计院集团有限公司 | Reinforced Concrete Double repeats gynostemium and its construction method |
| CN107882271A (en) * | 2017-10-17 | 2018-04-06 | 湖北工程学院 | A kind of marine sand concrete superposed column using UHPC outsourcings |
| CN108824834A (en) * | 2018-06-28 | 2018-11-16 | 山东建筑大学 | Wait tear the regeneration method of reinforced column Component- Based Development level in structure open |
| CN108952009A (en) * | 2018-09-07 | 2018-12-07 | 三筑工科技有限公司 | Prefabricated superposed column, reinforced column and assembled architecture body |
| CN110002799A (en) * | 2019-03-12 | 2019-07-12 | 中国矿业大学 | A kind of method that low energy consumption comprehensive utilizes discarded concrete and seawater sea sand |
| CN113463843A (en) * | 2020-03-31 | 2021-10-01 | 同济大学 | High-bearing recycled concrete combined column and construction method thereof |
| CN113463843B (en) * | 2020-03-31 | 2022-08-02 | 同济大学 | High-bearing recycled concrete combined column and construction method thereof |
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Open date: 20090722 |