CN110805204A - Hollow superposed column and construction method thereof and concrete column - Google Patents
Hollow superposed column and construction method thereof and concrete column Download PDFInfo
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- CN110805204A CN110805204A CN201911175727.2A CN201911175727A CN110805204A CN 110805204 A CN110805204 A CN 110805204A CN 201911175727 A CN201911175727 A CN 201911175727A CN 110805204 A CN110805204 A CN 110805204A
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- column
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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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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Abstract
The invention discloses a hollow superposed column, a construction method thereof and a concrete column, wherein a steel wire mesh is used for replacing an inner mold in the traditional process. After the prefabricated mould shell layer is poured, the steel wire mesh does not need to be dismantled, and the step of dismantling the inner mould in the traditional manufacturing process is omitted. The problems that in the prior art, an external mold and an internal mold need to be arranged in the prefabricating process of a hollow column or a superposed column, the flow is complicated when the internal mold is detached, and demolding is difficult are solved. The difficulty of the hollow superposed column in the design and production process is greatly reduced, the construction period is saved, and the construction cost is saved. The prefabricated column can be used for replacing a prefabricated column in an assembled structure, and is lighter, cost-saving and simpler in manufacturing process. In addition, the prefabricated mould shell layer can be made of heat-insulating concrete materials and used as a heat-insulating layer. Compared with the fully precast concrete column in the prior art, the hollow superposed column provided by the invention is lighter and more convenient, is beneficial to transportation and hoisting, realizes the integration of a heat preservation structure, and reduces the subsequent construction of a heat preservation layer on site.
Description
Technical Field
The invention belongs to the technical field of building engineering, and particularly relates to a hollow superposed column, a construction method thereof and a concrete column.
Background
The prefabricated column components of the existing fabricated concrete building are basically divided into two types, one type is a full-prefabricated concrete column, and the full-solid concrete column is poured, so that the self weight of the components is great, and the problems of requirements on transportation and hoisting mechanical equipment and the like are caused; the other type is a traditional hollow column or a traditional superposed column, an external mold and an internal mold need to be erected in the production and manufacturing process, and the external mold and the internal mold need to be dismantled (i.e. demolded) after the formwork is poured. When the demoulding is difficult or the prefabrication needs to be turned over for many times, and the like, especially when the inner mould is dismantled, the process is more complicated.
Patent CN109750793A discloses a prefabricated hollow wall post and construction method thereof, prefabricated hollow wall post comprises the concatenation of the empty post of multisection, empty post is equipped with the inside cavity that runs through both ends, empty post one end is equipped with female head, and the other end is equipped with public head, relies on through public head and female head between the adjacent empty post, at first at the prefabricated hollow post of mill, the prefabrication process as follows: binding reinforcing steel bars according to the size of the hollow column, then installing an inner template and an outer template, fixing the inner template and the outer template by using pull rods, reserving three stepped male heads and female heads at two ends of the hollow column according to the shape, and pouring, maintaining and forming to obtain the prefabricated hollow column.
In the prior art, an external mold and an internal mold are required to be arranged in the prefabricating process of the hollow column or the superposed column, and the process is complicated and the demolding is difficult when the internal mold is detached. Therefore, it is necessary to provide a scheme that can simplify the flow.
Disclosure of Invention
The invention aims to provide a hollow composite column, a construction method thereof and a concrete column, which are used for solving the problems that an external mold and an internal mold are required to be arranged in the prefabrication process of the hollow column or the composite column in the prior art, the flow is complicated when the internal mold is detached, and the demolding is difficult.
In order to solve the above technical problem, a first aspect of the present invention provides a method for constructing a hollow composite column, including:
s1: binding a reinforcement cage;
s2: a steel wire mesh is fixedly arranged along the periphery of the steel reinforcement cage;
s3: and pouring a prefabricated mould shell layer at the periphery of the steel reinforcement cage.
Optionally, the S1 includes:
s11: arranging longitudinal steel bars;
s12: and binding a ring-shaped stirrup around the longitudinal steel bars to form the reinforcement cage.
Optionally, the number of the longitudinal steel bars is multiple, in S11:
the plurality of longitudinal steel bars are arranged in parallel at intervals and form a cylindrical shape in space.
Optionally, in S2:
and the steel wire mesh is bound and fixed with the periphery of the reinforcement cage.
Optionally, the S3 includes:
s31: supporting an outer mold;
s32: placing the reinforcement cage into the external mold, wherein a pouring space exists between the external mold and the reinforcement cage;
s33: and pouring the prefabricated mould shell layer in the pouring space.
Optionally, in S3:
and two ends of the longitudinal steel bar are exposed outside the prefabricated formwork shell.
Optionally, the prefabricated mould shell layer comprises a heat-insulating concrete material and serves as a heat-insulating layer.
The invention provides a hollow superposed column, which is prepared by the construction method in any one of the above characteristic descriptions.
A third aspect of the invention provides a concrete column comprising a hollow composite column of the above-mentioned character, concrete being poured into the hollow composite column to form the concrete column.
Optionally, the number of the hollow superposed columns is multiple, and the reinforcing steel bars in the hollow superposed columns are connected through sleeve grouting, slurry anchor overlapping, welding or indirect overlapping.
The invention provides a hollow superposed column, a construction method thereof and a concrete column, which are different from the prior art in that a steel wire mesh is used for replacing an inner mould in the traditional process. After the prefabricated mould shell layer is poured, the steel wire mesh does not need to be dismantled, and the step of dismantling the inner mould in the traditional manufacturing process is omitted. The problems that in the prior art, an external mold and an internal mold need to be arranged in the prefabricating process of a hollow column or a superposed column, the flow is complicated when the internal mold is detached, and demolding is difficult are solved. The difficulty of the hollow superposed column in the design and production process is greatly reduced, the construction period is saved, and the construction cost is saved. The prefabricated column can be used for replacing a prefabricated column in an assembled structure, and is lighter, cost-saving and simpler in manufacturing process.
In addition, the prefabricated mould shell layer can be made of heat-insulating concrete materials and used as a heat-insulating layer. Compared with the fully precast concrete column in the prior art, the hollow superposed column provided by the invention is lighter and more convenient, is beneficial to transportation and hoisting, realizes the integration of a heat preservation structure, and reduces the subsequent construction of a heat preservation layer on site. The construction method provided by the invention can also be used for preparing the hollow beam.
Drawings
Fig. 1 is a schematic flow chart of a construction method of a hollow composite column according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a reinforcement cage;
FIG. 3 is a schematic structural view of the steel wire mesh connected outside the reinforcement cage;
FIG. 4 is a schematic structural view of an external mold;
FIG. 5 is a schematic structural diagram of a hollow composite column formed after casting;
FIG. 6 is a schematic structural view of a hollow composite column according to another embodiment of the present invention;
fig. 7 is a schematic view illustrating construction of a concrete column according to still another embodiment of the present invention;
10-a reinforcement cage, 100-longitudinal reinforcements, 101-annular stirrups, 20-a steel wire mesh, 30-a prefabricated mould shell layer and 40-an outer mould.
Detailed Description
The following describes in more detail embodiments of the present invention with reference to the schematic drawings. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
As shown in fig. 1, an embodiment of the present invention provides a construction method of a hollow composite column, including:
s1: binding a reinforcement cage 10;
s2: a steel wire mesh 20 is fixedly arranged along the periphery of the reinforcement cage 10;
s3: and pouring a prefabricated mould shell layer 30 at the periphery of the reinforcement cage 10.
The difference with the prior art is that the steel wire mesh 20 is used for replacing an internal mold in the traditional process. After the prefabricated mould shell layer 30 is poured, the steel wire mesh 20 does not need to be dismantled, and the step of dismantling the inner mould in the traditional manufacturing process is omitted. The problems that in the prior art, an external mold and an internal mold need to be arranged in the prefabricating process of a hollow column or a superposed column, the flow is complicated when the internal mold is detached, and demolding is difficult are solved. The difficulty of the hollow superposed column in the design and production process is greatly reduced, the construction period is saved, and the construction cost is saved. The prefabricated column can be used for replacing a prefabricated column in an assembled structure, and is lighter, cost-saving and simpler in manufacturing process. It should be noted that the construction method provided by the invention can also be used for preparing the hollow beam, and the specific flow is the same as that of the hollow superposed column.
Optionally, the S1 includes:
s11: arranging longitudinal steel bars 100;
s12: a hoop reinforcement 101 is tied around the longitudinal rebar 100 to form the rebar cage 10.
Optionally, the number of the longitudinal steel bars 100 is plural, and in S11:
a plurality of the longitudinal reinforcing bars 100 are arranged in parallel at intervals and spatially formed in a cylindrical shape.
The connection manner of the longitudinal steel bars 100 and the ring-shaped stirrups 101 can be the manner shown in fig. 2, wherein the specific specification and number of the longitudinal steel bars 100 need to be calculated and determined by structure, which is not limited herein. The reinforcement cage 10 is formed by binding the annular stirrups 101, and the number and the specification of the annular stirrups 101 also need to be calculated and determined according to the actual needs of the structure.
Optionally, in S2:
and the steel wire mesh 20 is bound and fixed with the periphery of the reinforcement cage 10.
The structure of the steel wire mesh 20 fixed on the periphery of the reinforcement cage 10 is shown in fig. 3, and it should be noted that the mesh size of the steel wire mesh 20 should not be too large, generally based on the fact that concrete cannot penetrate. And when concrete is poured subsequently, the concrete is not allowed to permeate, and the steel wire mesh 20 is wrapped outside the reinforcement cage 10 formed by binding the longitudinal reinforcements 100 and the annular stirrups 101. It should be noted that the steel wire mesh 20 and the reinforcement cage 10 may be connected by welding, or may be directly bound together. The steel wire mesh 20 replaces the internal mold in the prior art, and is integrated with the hollow superposed column after pouring is finished without being detached.
Optionally, the S3 includes:
s31: supporting an outer mold 40;
s32: placing the reinforcement cage 10 into the external mold 40, wherein a pouring space exists between the external mold and the reinforcement cage 10, as shown in fig. 4;
s33: and pouring the prefabricated mould shell layer 30 in the pouring space.
Optionally, in S3:
both ends of the longitudinal reinforcing bars 100 are exposed outside the prefabricated formwork layer 30, as shown in fig. 5 and 6.
Optionally, the preformed shell layer 30 comprises an insulating concrete material and serves as an insulating layer. The prefabricated mould shell layer 30 may be made of a heat insulating concrete material and serves as a heat insulating layer. Compared with the fully precast concrete column in the prior art, the hollow superposed column provided by the invention is lighter and more convenient, is beneficial to transportation and hoisting, realizes the integration of a heat preservation structure, and reduces the subsequent construction of a heat preservation layer on site.
Another embodiment of the present invention provides a hollow composite column, which is prepared by using the construction method described in any of the above descriptions, and the specific structure is shown in fig. 2 to 6.
A further embodiment of the present invention further provides a concrete column, including a hollow composite column of the above-mentioned character, wherein concrete is poured into the hollow composite column to form the concrete column.
Optionally, the number of the hollow superposed columns is multiple, and the reinforcing steel bars in the hollow superposed columns are connected through sleeve grouting, slurry anchor overlapping, welding or indirect overlapping. It should be noted that, since the longitudinal reinforcing bars 100 extend out of the end of the precast concrete shell and can be connected with the reinforcing bars of the lower column by using a sleeve grouting in construction, as shown in fig. 7. Different from the grouting connection of the full precast column sleeve, the sleeve provided by the invention is not embedded in precast concrete, has a certain flexible and movable space, and is stronger in fault tolerance.
The embodiment of the invention provides a construction method of a hollow superposed column, which specifically comprises the following steps: firstly, longitudinal steel bars 100 are arranged, the specifications and the number of the longitudinal steel bars 100 can be determined through structural calculation, and then the longitudinal steel bars 100 are bound by using ring-shaped stirrups 101 to form a reinforcement cage 10 and are wrapped inside the steel wire mesh 20. The mesh size of the steel wire mesh 20 is not too large, so that concrete cannot permeate in the subsequent concrete pouring process, the steel wire mesh 20 is wrapped on the outer side of the reinforcement cage 10 formed by binding the longitudinal bars and the annular stirrups 101 and can be fixed with the reinforcement cage 10 in a welding or binding mode without layering the reinforcements. And then pouring a prefabricated mould shell layer 30, wherein the prefabricated mould shell layer 30 can be made of light heat-insulating concrete materials, is poured on the outer side of the reinforcement cage 10 of the hollow column in advance in a factory, can be used as a template of the column in the construction stage, and can be used as a heat-insulating layer of the column and a protective layer of the reinforcement after the project is finished. After the combination of the steel wire mesh 20, the longitudinal steel bars 100 and the annular stirrups 101 is completed, an external mold is erected for one-time pouring of the heat preservation concrete, and the pouring is not required to be turned for multiple times in the process. And after the pouring is finished, the concrete column is transported to a construction site to be hoisted, and then the concrete is poured in the cavity of the concrete column to form the finished precast concrete column. The hollow superposed column provided by the invention is used as an outer mold shell of a precast concrete column in construction, and is used as a steel bar protection layer and participates in member stress in normal use. The construction method provided by the embodiment of the invention can make the production process of the hollow superposed column simpler and more convenient, and the hollow superposed column is lighter in weight, so that the hollow superposed column is more convenient to transport and hoist, and concrete is poured on site at the later stage.
In summary, the invention provides a hollow composite column, a construction method thereof and a concrete column, which are different from the prior art in that a steel wire mesh is used for replacing an inner mold in the traditional process. After the prefabricated mould shell layer is poured, the steel wire mesh does not need to be dismantled, and the step of dismantling the inner mould in the traditional manufacturing process is omitted. The problems that in the prior art, an external mold and an internal mold need to be arranged in the prefabricating process of a hollow column or a superposed column, the flow is complicated when the internal mold is detached, and demolding is difficult are solved. The difficulty of the hollow superposed column in the design and production process is greatly reduced, the construction period is saved, and the construction cost is saved. The prefabricated column can be used for replacing a prefabricated column in an assembled structure, and is lighter, cost-saving and simpler in manufacturing process.
In addition, the prefabricated mould shell layer can be made of heat-insulating concrete materials and used as a heat-insulating layer. Compared with the fully precast concrete column in the prior art, the hollow superposed column provided by the invention is lighter and more convenient, is beneficial to transportation and hoisting, realizes the integration of a heat preservation structure, and reduces the subsequent construction of a heat preservation layer on site.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example" or "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. And the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any way. It will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A construction method of a hollow superposed column is characterized by comprising the following steps:
s1: binding a reinforcement cage;
s2: a steel wire mesh is fixedly arranged along the periphery of the steel reinforcement cage;
s3: and pouring a prefabricated mould shell layer at the periphery of the steel reinforcement cage.
2. The construction method of a hollow composite column according to claim 1, wherein the S1 includes:
s11: arranging longitudinal steel bars;
s12: and binding a ring-shaped stirrup around the longitudinal steel bars to form the reinforcement cage.
3. The construction method of a hollow composite column according to claim 2, wherein the number of the longitudinal reinforcing bars is plural, and in S11:
the plurality of longitudinal steel bars are arranged in parallel at intervals and form a cylindrical shape in space.
4. The method for constructing a hollow composite column according to claim 1, wherein in S2:
and the steel wire mesh is bound and fixed with the periphery of the reinforcement cage.
5. The construction method of a hollow composite column according to claim 1, wherein the S3 includes:
s31: supporting an outer mold;
s32: placing the reinforcement cage into the external mold, wherein a pouring space exists between the external mold and the reinforcement cage;
s33: and pouring the prefabricated mould shell layer in the pouring space.
6. The method for constructing a hollow composite column according to claim 1, wherein in S3:
and two ends of the longitudinal steel bar are exposed outside the prefabricated formwork shell.
7. The method of claim 1, wherein the prefabricated formwork shell layer comprises a thermal insulation concrete material and is used as a thermal insulation layer.
8. A hollow composite column, characterized in that it is produced by the construction method according to any one of claims 1 to 7.
9. A concrete column comprising a hollow composite column according to claim 8, wherein concrete is cast into said hollow composite column to form said concrete column.
10. The concrete column according to claim 9, wherein the number of the hollow superposed columns is multiple, and the reinforcing steel bars in the hollow superposed columns are connected through sleeve grouting, slurry anchor overlapping, welding or indirect overlapping.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911175727.2A CN110805204A (en) | 2019-11-26 | 2019-11-26 | Hollow superposed column and construction method thereof and concrete column |
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| CN201911175727.2A CN110805204A (en) | 2019-11-26 | 2019-11-26 | Hollow superposed column and construction method thereof and concrete column |
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| CN111206677A (en) * | 2020-03-04 | 2020-05-29 | 华东建筑设计研究院有限公司 | Assembled integral concrete superposed structure system and construction method thereof |
| CN112538933A (en) * | 2020-12-10 | 2021-03-23 | 上海建工建材科技集团股份有限公司 | Reinforced concrete frame column reinforcement cage and manufacturing method thereof |
| CN113107087A (en) * | 2021-05-22 | 2021-07-13 | 商丘市华商建设集团有限公司 | Construction method of bottom assembled frame structure system |
| CN114033098A (en) * | 2021-11-30 | 2022-02-11 | 上海舜杰新材料科技有限公司 | Prefabricated self-insulation light wall and construction method thereof |
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| CN110185174A (en) * | 2019-06-28 | 2019-08-30 | 华东建筑设计研究院有限公司 | A kind of assembled fills core wall and its construction method and the frame for being used to prepare wall |
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| CN108590035A (en) * | 2018-04-28 | 2018-09-28 | 北京工业大学 | High-strength recycled concrete superposed column and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112538933A (en) * | 2020-12-10 | 2021-03-23 | 上海建工建材科技集团股份有限公司 | Reinforced concrete frame column reinforcement cage and manufacturing method thereof |
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Application publication date: 20200218 |