CN109779155B - Prefabricated assembled column, building structure and construction method of building structure - Google Patents

Prefabricated assembled column, building structure and construction method of building structure Download PDF

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Publication number
CN109779155B
CN109779155B CN201910092318.XA CN201910092318A CN109779155B CN 109779155 B CN109779155 B CN 109779155B CN 201910092318 A CN201910092318 A CN 201910092318A CN 109779155 B CN109779155 B CN 109779155B
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column
cylinder
fabricated
building
prefabricated
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CN109779155A (en
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王宁
孙占琦
王洪欣
叶福相
王�义
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China Construction Science and Technology Group Co Ltd Shenzhen Branch
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China Construction Science and Technology Group Co Ltd Shenzhen Branch
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Abstract

The invention is suitable for the technical field of building construction, and provides an assembled prefabricated column, a building structure and a construction method of the building structure. The assembly type prefabricated column body comprises a first column body, a second column body and a plurality of steel bars, wherein the first column body and the second column body are fixedly connected with each other, and a filling part is formed at the periphery of the second column body; the first cylinder is run through along the axis direction of first cylinder to a plurality of reinforcing bars, the reinforcing bar includes shaping first connecting portion as an organic whole, second connecting portion and intermediate junction portion, intermediate junction portion are located between first connecting portion and the second connecting portion, intermediate junction portion set firmly in first cylinder, the one end of second cylinder is kept away from in first cylinder to first connecting portion protrusion, second connecting portion protrusion is close to the one end of second cylinder in first cylinder, the second connecting portion enclose around locating the second cylinder, and be located in the filling portion. The building structure comprises a floor slab, a mixed soil layer and a plurality of prefabricated assembled cylinders. The invention has the advantages of strong operability, simple construction process and high construction efficiency.

Description

Prefabricated assembled column, building structure and construction method of building structure
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to an assembled prefabricated column, a building structure and a construction method of the building structure.
Background
The steel bar connection of the traditional cast-in-place steel concrete column is most commonly welded connection, binding connection and mechanical connection, wherein the mechanical connection can be applied to a member subjected to dynamic load and a member subjected to tension, and the application range is widest. In any connection mode, the steel bars are firstly connected, then concrete is poured, and the method belongs to forward operation.
In the existing widely-applied assembled concrete column connecting structure, the steel bar connection of the upper and lower precast concrete columns mostly adopts two connection modes of sleeve grouting connection or anchor grouting overlapping connection, and the two connection modes have some problems. The sleeve among the sleeve grout connection technology is with high costs, the machining precision is not high, leads to the reinforcing bar to counterpoint inaccurately, causes the node concrete easily not closely knit, and the grout pipe blocks up easily, and grout quality is difficult to guarantee and inconvenient detection scheduling problem, influences the efficiency of construction. And anchor thick liquid overlap joint technique has vertical reinforcing bar overlap joint length long, and easy reinforcing bar overlap joint is eccentric, has the field construction technology complicacy, the big scheduling problem of the construction degree of difficulty to no matter be sleeve grout connection or anchor thick liquid overlap joint, all belong to reverse operation engineering, it is inconvenient and the procedure is complicated to check and accept.
Disclosure of Invention
The technical problem to be solved by the embodiment of the invention is to provide an assembly type prefabricated column, a building structure and a construction method of the building structure, and the invention aims to solve the problems of low construction efficiency caused by complex construction process and high construction difficulty of an assembly type concrete column connecting structure in the prior art.
The embodiment of the invention is realized in such a way that an assembly type prefabricated column body is provided, which comprises a first column body, a second column body and a plurality of steel bars, wherein the first column body and the second column body are fixedly connected with each other, and a filling part is formed at the periphery of the second column body; the utility model discloses a steel bar reinforcing structure, including first cylinder, second cylinder, middle connecting portion, first connecting portion, second connecting portion enclose to locate around the second cylinder, and be located in the packing portion, the length of second connecting portion is less than the axial length of second cylinder.
Further, the first column and the second column are integrally cast by concrete.
Furthermore, the first column body and the second column body are both rectangular, and the cross sectional area of the first column body is larger than that of the second column body.
Furthermore, the plurality of steel bars are uniformly distributed around the first column body.
The invention also provides an assembly type building structure which comprises a floor slab, a muddy soil layer and the assembly type prefabricated cylinders, wherein the assembly type prefabricated cylinders are sequentially connected, and the floor slab is installed at one end, far away from the second cylinder, of the first cylinder;
when two adjacent prefabricated cylinder of assembled interconnect, the second cylinder support lean on the floor, the tip of first connecting portion and the mutual fixed connection of tip of second connecting portion, pack in the filling portion the concrete layer, first connecting portion and second connecting portion bury underground in the concrete layer.
Further, the end of the first connecting part and the end of the second connecting part are connected with each other through a steel bar mechanical connecting sleeve.
The invention also provides a construction method of the fabricated building structure, which comprises the following steps:
s1, prefabricating a plurality of prefabricated columns with reserved filling parts through concrete and steel bars;
s2, after the bottom end of the first fabricated column is installed on a foundation, a floor slab is poured at the upper end of the first column, and the first connecting portion is exposed out of the floor slab;
s3, abutting a second column body on a second fabricated column body against the floor slab, and fixedly connecting a second connecting part on the second fabricated column body and a first connecting part on the first fabricated column body with each other;
and S4, pouring the concrete layer in the filling part on the second fabricated column to enable the concrete layer to cover the first connecting part and the second connecting part.
Further, in the step S3: and the second connecting part on the second assembled prefabricated column body is fixedly connected with the first connecting part on the first assembled prefabricated column body through a steel bar mechanical connecting sleeve.
Compared with the prior art, the embodiment of the invention has the advantages that: when the prefabricated cylinders are connected and installed with each other, after a floor slab is installed on the upper surface of a first cylinder on the prefabricated cylinder on the lower layer, the lower surface of a second cylinder on the prefabricated cylinder on the upper layer is abutted against the floor slab, the end part of a second connecting part on the prefabricated cylinder on the upper layer is fixedly connected with the end part of a first connecting part on the prefabricated cylinder on the lower layer, the second cylinder on the prefabricated cylinder on the upper layer is arranged in a space between the first connecting part and the second connecting part, then a concrete layer is filled in a filling part at the periphery of the second cylinder, the first connecting part and the second connecting part are embedded in the concrete layer, and stable connection is formed between the prefabricated cylinders. The steel bar connecting nodes between the prefabricated columns are visible with naked eyes before being embedded, so that the operation is convenient, the operation belongs to forward operation, namely, the steel bars are connected firstly and then the concrete layer is poured, the hidden danger caused by the reverse operation mode of connecting by using a grouting sleeve in the prior art is avoided, the operability is strong, the construction process is simplified, the construction efficiency is improved, and the reliability of component connection can be ensured.
Drawings
FIG. 1 is a schematic structural diagram of an assembled prefabricated column according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the prefabricated building structure provided by the embodiment of the present invention before being filled with a concrete layer;
FIG. 3 is a schematic sectional view taken along line A-A in FIG. 2;
fig. 4 is a schematic longitudinal sectional view showing a structure of an assembled building structure filled with a concrete layer according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 1 to 3 show an assembled prefabricated column according to an embodiment of the present invention. The prefabricated assembled column 10 includes a first column 11, a second column 12 and a plurality of reinforcing bars 13, wherein the first column 11 and the second column 12 are fixedly connected to each other, and a filling part 14 is formed at the periphery of the second column 12. Specifically, the first column 11 and the second column 12 are cast by concrete, the middle portions of the reinforcing bars 13 are embedded in the first column 11, and the cross-sectional area of the first column 11 is larger than that of the second column 12, so that a groove is formed at the periphery of the second column 12, and the groove constitutes the filling portion 14. The reinforcing bars 13 penetrate through the first column 11 along the axial direction of the first column 11, so that two ends of the reinforcing bars 13 extend out of the first column 11, one end of each reinforcing bar 13 is located in the filling part 14, and the prefabricated assembled columns 10 can be connected with one another through the reinforcing bars 13.
In the above embodiment, the reinforcing bars 13 are uniformly distributed around the first column 11. The reinforcing bar 13 includes the first connecting portion 131, second connecting portion 132 and the intermediate junction portion 133 of shaping as an organic whole, intermediate junction portion 133 is located between first connecting portion 131 and the second connecting portion 132, intermediate junction portion 133 sets firmly in first cylinder 11, the one end that second cylinder 12 was kept away from in first cylinder 11 to first connecting portion 131 protrusion, the one end that second cylinder 12 is close to in first cylinder 11 is protruded to second connecting portion 132, second connecting portion 132 encloses and locates around second cylinder 12, and be located filling portion 14, the length of second connecting portion 132 is less than the axial length of second cylinder 12. In this way, when two prefabricated columns 10 need to be connected into a whole, a first column on one prefabricated column 10 and a second column 12 on the other prefabricated column 10 abut against each other, the first connection portion 131 on one prefabricated column 10 and the second connection portion 132 of the other prefabricated column 10 are butted with each other, two ends of the steel bar mechanical connection sleeve 15 are respectively in threaded locking with the first connection portion 131 and the second connection portion 132, finally, the filling portion 14 at the periphery of the second column 12 is filled with the concrete layer 30, the first connection portion 131 and the second connection portion 132 after being connected with each other are covered, and stable connection is formed between the two prefabricated columns 10.
In the present embodiment, the first column 11 and the second column 12 are both rectangular, and in other embodiments, the first column 11 and the second column 12 may also be circular, polygonal, and the like, and the specific shape is determined according to the construction requirement.
The embodiment of the invention also provides an assembled building structure. The building structure comprises a floor slab 20, a mixed soil layer 30 and the plurality of prefabricated assembled cylinders 10, wherein the prefabricated assembled cylinders 10 are sequentially connected, and the floor slab 20 is installed at one end, far away from the second cylinder 12, of the first cylinder 11. When two adjacent prefabricated columns 10 are connected with each other, the second column 12 abuts against the floor slab 20, the end of the first connection portion 131 and the end of the second connection portion 132 are fixedly connected with each other through the steel bar mechanical connection sleeve 15, the concrete layer 30 is filled in the filling portion 14, and the first connection portion 131 and the second connection portion 132 are embedded in the concrete layer 30, so that the prefabricated columns 10, the floor slab 20 and the concrete layer 30 are fixed into a whole to form the prefabricated building structure.
The embodiment of the invention also provides a construction method of the fabricated building structure, which comprises the following steps:
s1, prefabricating a plurality of prefabricated columns 10 of the reserved filling parts 14 through concrete and reinforcing steel bars 13; namely, a formwork is supported at the lower end of the precast concrete, and a filling part 14 is reserved to form the precast column body 10 with the filling part 14.
S2, after the bottom end of the first prefabricated column 10 is installed on the foundation, pouring a floor slab 20 on the upper end of the first column 11, and exposing the first connection portion 131 to the floor slab 20;
s3, abutting the second column 12 of the second prefabricated column 10 against the floor slab 20, and fixedly connecting the second connection part 132 of the second prefabricated column 10 and the first connection part 131 of the first prefabricated column 10 to each other through the steel mechanical connection sleeve 15;
s4, casting the concrete layer 30 in the filling part 14 on the second fabricated column 10, so that the concrete layer 30 covers the first connection part 131 and the second connection part 132, and the fabricated column 10, the floor slab 20 and the concrete layer 30 are fixed as a whole, thereby completing the construction of the fabricated building structure.
In summary, the assembly type building structure of the present invention has the following advantages: the steel bar connection node between the prefabricated cylinder 10 is visible with naked eyes before pre-buried, and the operation of being convenient for belongs to forward operation, connects reinforcing bar 13 earlier promptly and pours concrete layer 30 again, has avoided the tradition to adopt the hidden danger that this kind of reverse operation of grout muffjoint brought, and maneuverability is strong, has simplified construction process, has improved the efficiency of construction to can guarantee the reliability that prefabricated cylinder 10 connects.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (8)

1. An assembly type prefabricated column body is characterized by comprising a first column body, a second column body and a plurality of steel bars, wherein the first column body and the second column body are fixedly connected with each other, and a filling part is formed at the periphery of the second column body; the utility model discloses a steel bar reinforcing structure, including first cylinder, second cylinder, middle connecting portion, first connecting portion, second connecting portion enclose to locate around the second cylinder, and be located in the packing portion, the length of second connecting portion is less than the axial length of second cylinder.
2. The fabricated precast column of claim 1, wherein the first column and the second column are cast in one piece of concrete.
3. The fabricated column of claim 1, wherein the first column and the second column are each rectangular, and wherein a cross-sectional area of the first column is greater than a cross-sectional area of the second column.
4. The fabricated column of claim 3, wherein the plurality of rebars are evenly distributed around the first column.
5. An assembled building structure, characterized by comprising a floor slab, a concrete layer and a plurality of assembled prefabricated cylinders according to any one of claims 1 to 4, wherein the assembled prefabricated cylinders are connected in sequence, and one end of the first cylinder, which is far away from the second cylinder, is provided with the floor slab;
when two adjacent prefabricated cylinder of assembled interconnect, the second cylinder support lean on the floor, the tip of first connecting portion and the mutual fixed connection of tip of second connecting portion, pack in the filling portion the concrete layer, first connecting portion and second connecting portion bury underground in the concrete layer.
6. A fabricated building structure according to claim 5, wherein the ends of the first and second connectors are interconnected by a rebar mechanical connector sleeve.
7. A method of constructing a fabricated building structure according to claim 5, comprising the steps of:
s1, prefabricating a plurality of prefabricated columns with reserved filling parts through concrete and steel bars;
s2, after the bottom end of the first fabricated column is installed on a foundation, a floor slab is poured at the upper end of the first column, and the first connecting portion is exposed out of the floor slab;
s3, abutting a second column body on a second fabricated column body against the floor slab, and fixedly connecting a second connecting part on the second fabricated column body and a first connecting part on the first fabricated column body with each other;
and S4, pouring the concrete layer in the filling part on the second fabricated column to enable the concrete layer to cover the first connecting part and the second connecting part.
8. The construction method of a fabricated building structure according to claim 7, wherein:
in the step S3, the second connection portion of the second fabricated column is fixedly connected to the first connection portion of the first fabricated column by a steel bar mechanical connection sleeve.
CN201910092318.XA 2019-01-30 2019-01-30 Prefabricated assembled column, building structure and construction method of building structure Active CN109779155B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111648469A (en) * 2020-04-24 2020-09-11 金点石(北京)建筑设计咨询服务有限责任公司 Column-beam connector and building body

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112681529A (en) * 2020-12-16 2021-04-20 广州天行建筑设计事务所有限公司 Construction method of fabricated building structure

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101787733A (en) * 2010-03-03 2010-07-28 管乃彦 Prefabricated vertical member
CN206769051U (en) * 2017-04-14 2017-12-19 陈思萍 A kind of assembled integral column connected node
CN207436254U (en) * 2017-09-26 2018-06-01 中建科技有限公司深圳分公司 Assembly of shear wall structure
CN207469430U (en) * 2017-10-13 2018-06-08 湖南标迪夫节能科技有限公司 A kind of assembled arthitecutral structure
CN208251460U (en) * 2018-05-28 2018-12-18 西京学院 A kind of assembly concrete column
CN109208823A (en) * 2018-11-12 2019-01-15 安徽工程大学 It is a kind of can quick assembling built-in steel-case formula steel core concrete column and its production technology

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101787733A (en) * 2010-03-03 2010-07-28 管乃彦 Prefabricated vertical member
CN206769051U (en) * 2017-04-14 2017-12-19 陈思萍 A kind of assembled integral column connected node
CN207436254U (en) * 2017-09-26 2018-06-01 中建科技有限公司深圳分公司 Assembly of shear wall structure
CN207469430U (en) * 2017-10-13 2018-06-08 湖南标迪夫节能科技有限公司 A kind of assembled arthitecutral structure
CN208251460U (en) * 2018-05-28 2018-12-18 西京学院 A kind of assembly concrete column
CN109208823A (en) * 2018-11-12 2019-01-15 安徽工程大学 It is a kind of can quick assembling built-in steel-case formula steel core concrete column and its production technology

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111648469A (en) * 2020-04-24 2020-09-11 金点石(北京)建筑设计咨询服务有限责任公司 Column-beam connector and building body

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