CN104775631A - Late-added concrete stand column construction method - Google Patents

Late-added concrete stand column construction method Download PDF

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Publication number
CN104775631A
CN104775631A CN201510082474.XA CN201510082474A CN104775631A CN 104775631 A CN104775631 A CN 104775631A CN 201510082474 A CN201510082474 A CN 201510082474A CN 104775631 A CN104775631 A CN 104775631A
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CN
China
Prior art keywords
board
reinforcing bar
upright post
stand column
column construction
Prior art date
Application number
CN201510082474.XA
Other languages
Chinese (zh)
Inventor
孔令磊
孟凡利
张怡戈
杨润来
靳胜
陈三洋
孟令月
刘保永
洪志军
Original Assignee
中交一航局第一工程有限公司
中交第一航务工程局有限公司
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.)
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Publication date
Application filed by 中交一航局第一工程有限公司, 中交第一航务工程局有限公司 filed Critical 中交一航局第一工程有限公司
Priority to CN201510082474.XA priority Critical patent/CN104775631A/en
Publication of CN104775631A publication Critical patent/CN104775631A/en

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Abstract

The invention relates to the field of civil engineering, in particular to a late-added concrete stand column construction method. The late-added concrete stand column construction method comprises the following steps: a lower section of reinforcement is implanted in a stand column construction position on a baseplate; an upper section of reinforcement is connected to an opposite position on a top plate; the lower section of reinforcement and the upper section of reinforcement are connected through a thread joint; a reinforcement skeleton is mounted, and a body part of a stand column is cast; after the body part of the stand column reaches the standard strength requirement, the top of the body part of the stand column is polished; the grouting is performed in an area between the top of the body part of the stand column and the top plate to connect the top of the body part of the stand column with the top plate, so that the difficulty of incapability of tightly connecting the top of the stand column with an original structure in late addition of a concrete stand column in a cast structure is preferably solved, and the engineering quality and the late bearing safety are greatly improved.

Description

Concrete column construction method is increased after a kind of
Technical field
The present invention relates to field of civil engineering, particularly relate to a kind of rear increasing concrete column construction method.
Background technology
At present, in the structure of having constructed, newly-increased concrete column, generally because column top cannot overlay closely knit with concrete structure, is difficult to play the effect of shoring, and becomes the obstacle that structure design and site operation be difficult to break through.
Therefore, for above deficiency, the invention provides a kind of rear increasing concrete column construction method.
Summary of the invention
(1) technical problem that will solve
The object of this invention is to provide a kind of rear concrete column construction method that increases cannot overlay closely knit with concrete structure to solve rear increasing concrete column construction central post top, is difficult to the problem playing the effect of shoring.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of rear increasing concrete column construction method, it comprises the following steps: S1, base plate upper pillar stand construction location carry out hypomere reinforcing bar implantation or at the pre-buried screw shell of base plate upper pillar stand construction location to install hypomere reinforcing bar, position corresponding on top board connects epimere reinforcing bar;
S2, hypomere reinforcing bar are connected by nipple with epimere reinforcing bar;
S3, installation cage of reinforcement, carry out the cast of upright post main part;
After S4, upright post main part reach specification requirement of strength, dabbing process is carried out at column main part top;
Slip casting cast is carried out, to make upright post main atop part and top board seamless link in S5, region between upright post main atop part and top board.
Wherein, in step S1, when top board connects epimere reinforcing bar, adopt the mode of bar planting.
Wherein, in step S1, when top board connects epimere reinforcing bar, pre-buried screw shell on top board, then makes epimere reinforcing bar be connected with screw shell.
Wherein, in step s 2, the mode that hypomere reinforcing bar and epimere reinforcing bar are overlapped by upset straight thread splice, welding or colligation is connected.
Wherein, in step s 5, under before region between upright post main atop part and top board carries out slip casting, on top board, spud in grouting port and exhaust opening in corresponding position.
Wherein, in step s 5, under before region between upright post main atop part and top board carries out slip casting cast, reserved grouting port and exhaust opening on top board.
(3) beneficial effect
Technique scheme tool of the present invention has the following advantages: in rear increasing concrete column construction method provided by the invention, first install cage of reinforcement, carry out the cast of upright post main part; Then, after upright post main part reaches specification requirement of strength, dabbing process is carried out at column main part top; Slip casting cast is carried out in region between upright post main atop part and top board, to make upright post main atop part and top board seamless link, solve when increasing concrete column after in pouring structure preferably, column top cannot be connected a difficult problem closely with original structure, and greatly improving is workmanship and later stage bearing safety.
Accompanying drawing explanation
Fig. 1 is the stereogram increasing concrete column construction method after the embodiment of the present invention.
In figure, 1: top board; 2: base plate; 3: hypomere reinforcing bar; 4: nipple; 5: screw shell; 6: upright post main part; 7: Grouting Pipe; 8: slip casting district, column top.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
In describing the invention, it will be appreciated that, term " on ", D score, "front", "rear", " top ", " end " " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
As shown in Figure 1, rear increasing concrete column construction method provided by the invention comprises the following steps:
S1, on a base plate 2 column construction location carry out hypomere reinforcing bar 3 implantation or at the pre-buried screw shell of base plate upper pillar stand construction location to install hypomere reinforcing bar, position corresponding on top board 1 connects epimere reinforcing bar;
S2, hypomere reinforcing bar 3 are connected by nipple 4 with epimere reinforcing bar;
S3, installation cage of reinforcement, carry out the cast of upright post main part 6, adopt conventional pouring concrete technique during cast;
After S4, upright post main part 6 reach specification requirement of strength, dabbing process is carried out at column main part 6 top;
Slip casting cast is carried out in S5, region (slip casting district, column top 8) between upright post main part 6 top and top board 1, be connected with top board 1 to make upright post main part 6 top, length between upright post main part 6 top and top board 1 is generally preferably 50cm, the effective connection both being realized by slip casting.
In step S1, when top board 1 connects epimere reinforcing bar, adopt the mode of bar planting.
In step S1, when top board 1 connects epimere reinforcing bar, pre-buried screw shell 5 on top board 1, then makes epimere reinforcing bar be connected with screw shell 5.
In step s 2, hypomere reinforcing bar 3 is connected by upset straight thread splice 4 with epimere reinforcing bar.
In step s 5, under before region between upright post main part 6 top and top board 1 carries out slip casting cast, on top board 1, corresponding position water drilling spuds in grouting port and exhaust opening.
In step s 5, under before region between upright post main part 6 top and top board 1 carries out slip casting cast, reserved grouting port and exhaust opening on top board 1, particularly, pre-buried two Grouting Pipe 7 concordant with top board 1 bottom surface in position corresponding with column on top board 1, use as slip casting on the one hand or exhaust use in slip casting process, the grouting port certainly spudded on top board 1 also has the effect of these two aspects.
Before slip casting cast is carried out in region in rear increasing concrete column construction method provided by the invention between upright post main part 6 top and top board 1, first slip casting district 8, column top territory template is installed.Hold out against close bottom die head and top board 1, mortar leakage prevention.Then starched or other same type of material to the inner pressure injection of column and column concrete equality strength micro-expansion cement by grouting port on plate 1, thus the construction of increasing column after completing.Rear increasing column is divided into routine to build the part two sections of part and grouting methol by the inventive method, increase column after realizing well to be connected with original structure, solve when increasing concrete column after in pouring structure preferably, column top cannot be connected a difficult problem closely with original structure, and greatly improving is workmanship and later stage bearing safety.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.

Claims (6)

1. increase a concrete column construction method after, it is characterized in that: it comprises the following steps:
S1, base plate upper pillar stand construction location carry out hypomere reinforcing bar implantation or at the pre-buried screw shell of base plate upper pillar stand construction location to install hypomere reinforcing bar, position corresponding on top board connects epimere reinforcing bar;
S2, hypomere reinforcing bar are connected by nipple with epimere reinforcing bar;
S3, installation cage of reinforcement, carry out the cast of upright post main part;
After S4, upright post main part reach specification requirement of strength, dabbing process is carried out at column main part top;
Slip casting cast is carried out, to make upright post main atop part and top board seamless link in S5, region between upright post main atop part and top board.
2. rear increasing concrete column construction method according to claim 1, is characterized in that: in step S1, adopts the mode of bar planting when top board connects epimere reinforcing bar.
3. rear increasing concrete column construction method according to claim 1, is characterized in that: in step S1, and when top board connects epimere reinforcing bar, pre-buried screw shell on top board, then makes epimere reinforcing bar be connected with screw shell.
4. rear increasing concrete column construction method according to claim 1, it is characterized in that: in step s 2, the mode that hypomere reinforcing bar is overlapped by upset straight thread splice, welding or colligation with epimere reinforcing bar is connected.
5. rear increasing concrete column construction method according to claim 1, is characterized in that: in step s 5, and before slip casting is carried out in the region between upright post main atop part and top board, on top board, spud in grouting port and exhaust opening in corresponding position.
6. rear increasing concrete column construction method according to claim 1, is characterized in that: in step s 5, before slip casting cast is carried out in the region between upright post main atop part and top board, and reserved grouting port and exhaust opening on top board.
CN201510082474.XA 2015-02-16 2015-02-16 Late-added concrete stand column construction method CN104775631A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201510082474.XA CN104775631A (en) 2015-02-16 2015-02-16 Late-added concrete stand column construction method

Publications (1)

Publication Number Publication Date
CN104775631A true CN104775631A (en) 2015-07-15

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102031876A (en) * 2009-09-29 2011-04-27 中冶天工上海十三冶建设有限公司 Method for newly adding upright column for building
CN102444142A (en) * 2011-09-20 2012-05-09 新世纪建设集团有限公司 Pile group column replacement expanded basement and construction method of same
CN102777052A (en) * 2012-08-13 2012-11-14 黄智辉 Reinforced concrete jacket strengthening beam-column core area structure
CN103046766A (en) * 2013-01-14 2013-04-17 北京筑福建设工程有限责任公司 Method for lengthening columns, adding beams, resisting earthquakes and reinforcing for bottom frame structure
CN103225422A (en) * 2013-04-10 2013-07-31 北京筑福国际工程技术有限责任公司 Existing masonry structure using light steel structure direct storey-adding technology and construction method of existing masonry structure
CN203669112U (en) * 2013-12-30 2014-06-25 安徽天筑建设(集团)有限公司 Added-storey steel frame column base joint on top of multilayer concrete frame structure
CN104213717A (en) * 2014-07-10 2014-12-17 上海市建筑科学研究院(集团)有限公司 Integrated reconstruction method for multi-storey residential

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102031876A (en) * 2009-09-29 2011-04-27 中冶天工上海十三冶建设有限公司 Method for newly adding upright column for building
CN102444142A (en) * 2011-09-20 2012-05-09 新世纪建设集团有限公司 Pile group column replacement expanded basement and construction method of same
CN102777052A (en) * 2012-08-13 2012-11-14 黄智辉 Reinforced concrete jacket strengthening beam-column core area structure
CN103046766A (en) * 2013-01-14 2013-04-17 北京筑福建设工程有限责任公司 Method for lengthening columns, adding beams, resisting earthquakes and reinforcing for bottom frame structure
CN103225422A (en) * 2013-04-10 2013-07-31 北京筑福国际工程技术有限责任公司 Existing masonry structure using light steel structure direct storey-adding technology and construction method of existing masonry structure
CN203669112U (en) * 2013-12-30 2014-06-25 安徽天筑建设(集团)有限公司 Added-storey steel frame column base joint on top of multilayer concrete frame structure
CN104213717A (en) * 2014-07-10 2014-12-17 上海市建筑科学研究院(集团)有限公司 Integrated reconstruction method for multi-storey residential

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* Cited by examiner, † Cited by third party
Title
赵新文: "使用功能变更后的增柱施工技术", 《山西建筑》 *

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Application publication date: 20150715