CN112696026A - Concrete pouring construction method for section steel concrete column beam node - Google Patents
Concrete pouring construction method for section steel concrete column beam node Download PDFInfo
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- CN112696026A CN112696026A CN202011381875.2A CN202011381875A CN112696026A CN 112696026 A CN112696026 A CN 112696026A CN 202011381875 A CN202011381875 A CN 202011381875A CN 112696026 A CN112696026 A CN 112696026A
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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
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/30—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts being composed of two or more materials; Composite steel and concrete constructions
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- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention provides a concrete pouring construction method for a section steel concrete column beam node, which comprises the following steps: step 1: building a template supporting system; step 2: mounting a beam bottom template at the beam column node; and step 3: binding beam steel bars at the beam-column joints, and installing a beam side template on one side; and 4, step 4: installing and plugging horizontal steel bars; and 5: mounting a dense mesh steel wire mesh at the beam column joint plugging part; step 6: exhausting the gas in the inflatable air bag, and placing the inflatable air bag outside the dense-mesh steel wire mesh in the beam; and 7: installing a beam side template on the other side, and inflating the air bag to realize plugging before pouring concrete at the beam column node; and 8: exhaust pipes are placed in the columns and the beams at the joints of the beam columns and the beams; and step 9: and (5) finishing the installation of all the templates, and pouring the concrete after the inspection is qualified. The method adopted by the invention utilizes the compressibility, elasticity and flexibility of the air bag to plug the column beam joint, thereby greatly improving the plugging effect.
Description
Technical Field
The invention relates to the technical field of house building concrete pouring, in particular to a concrete pouring construction method for a section steel concrete column beam node.
Background
At present, the section steel concrete composite structure has the advantages of high bearing capacity, obviously improved ductility compared with a reinforced concrete structure, durability, fire resistance and the like, so the section steel concrete composite structure is widely applied to building projects; however, in the steel structure beam and column in the steel reinforced concrete composite structure, part of space is occupied, steel bars are more at the nodes of the beam and column, general concrete is used for pouring, the requirement on the particle size of aggregate in the concrete is not strict, the pouring process is difficult, the vibration equipment cannot vibrate due to the longitudinal and transverse arrangement of the steel bars at the nodes of the beam and column, and even if the pouring is finished, the concrete in the structure body is not densely filled, has the quality problems of cavities, poor appearance and the like, so that the structural strength cannot meet the design requirement; the grade of concrete poured by a common column in the concrete composite structure is higher than that of the concrete poured by a beam associated with the column, so that the concrete of the column is poured before the concrete of the beam is poured. The column and beam joints at the self-compacting concrete pouring section steel concrete combined structure can flow and compact under the self-gravity action of the self-compacting concrete, even compact steel bars can be completely filled, the homogeneity is good, no additional vibration is needed, the clearance passing performance is strong, and the structural compactness is strong; compared with the self-compacting concrete with the same grade, the self-compacting concrete has the advantages that the manufacturing cost is 25 percent, the aggregate particle size of the self-compacting concrete is small, the fluidity is strong, the cohesiveness is good, but the self-compacting concrete is difficult to block unnecessary parts during pouring, so that the self-compacting concrete is easy to overflow into the unnecessary parts during pouring, unnecessary waste is caused, and the project cost is increased; unstable bubbles are easily generated in the self-compacting concrete pouring process.
The traditional method for plugging concrete in pouring comprises the following steps of 1, additionally arranging thin steel bars at the positions of beam-column joints to be plugged; 2. placing a dense mesh steel wire mesh; 3. fixing the dense mesh steel wire mesh on the thin steel bars; in the method, when concrete is fed too fast in a pouring process, the blocked dense mesh steel wire mesh is washed away and displaced, blocking cannot be realized, concrete pouring is stopped, pouring can be continued after treatment is finished, and in addition, slurry in the concrete can overflow from gaps of the dense mesh steel wire mesh to unnecessary parts due to blocking of the dense mesh steel wire mesh, so that waste is caused. The self-compacting concrete has good fluidity and strong gap passing performance, and can cause great waste if the self-compacting concrete is plugged by adopting a traditional method.
Disclosure of Invention
In view of the above, the invention provides a concrete pouring construction method for a section steel concrete column beam node, and aims to solve the problem of improving the pouring effect of the section steel concrete column beam node during concrete pouring.
In one aspect, the invention provides a concrete pouring construction method for a section steel concrete column beam node, which comprises the following steps:
step 1: building a template supporting system;
step 2: mounting a beam bottom template at the beam column node;
and step 3: binding beam steel bars at the beam-column joints, and installing a beam side template on one side;
and 4, step 4: installing and plugging horizontal steel bars;
and 5: mounting a dense mesh steel wire mesh at the beam column joint plugging part;
step 6: exhausting the gas in the inflatable air bag, and placing the inflatable air bag outside the dense-mesh steel wire mesh in the beam;
and 7: installing a beam side template on the other side, and inflating the air bag to realize plugging before pouring concrete at the beam column node;
and 8: exhaust pipes are placed in the columns and the beams at the joints of the beam columns and the beams;
and step 9: and (5) finishing the installation of all the templates, and pouring the concrete after the inspection is qualified.
Further, in the step 1, firstly, the installation of the column reinforcing steel bars at the joints of the beam column is completed, and then a template support system is erected.
Further, in the step 2, when the beam steel bars at the beam-column joint are bound, the steel bars at the blocking position of the beam-column joint are not bound.
Further, before the step 4 is carried out, plugging vertical steel bars are firstly installed on the upper plane of the beam 500 mm away from the column side.
Further, when the plugging vertical steel bars are installed, the plugging vertical steel bars and the arrangement direction of the beam are kept at an included angle of 45 degrees.
Further, the concrete pouring construction method for the section steel concrete column beam node further comprises the following steps:
step 10: when the self-compacting concrete pouring height of the column at the node of the beam column reaches 1 m, the exhaust pipe moves up and down slowly.
Further, when the pouring of the self-compacting concrete of the column having a height of 1 m is completed, the step 10 is repeated until the pouring of the self-compacting concrete of the column is completed.
Further, the exhaust pipe is pulled out after the self-compacting concrete of the column is poured.
Furthermore, after the self-compacting concrete is poured for one hour, the gas in the air bag is exhausted and then taken out.
Furthermore, after the air bag is taken out, the reinforcing steel bars, the stirrups and the waist bars at the air bag placing position in the beam are restored and are firmly bound.
Compared with the prior art, the construction method has the beneficial effects that the air bag is adopted to carry out secondary plugging on the section steel concrete column beam node, the effective isolation of the plugging part is increased, the gap of the dense steel wire mesh is sealed, the overflow of the self-compacting concrete to an unnecessary part during the self-compacting concrete pouring is reduced to the maximum extent when the self-compacting concrete is poured to the column beam node, and the exhaust duct is additionally arranged to lead out unstable gas generated after the pouring.
The method adopted by the invention utilizes the compressibility, elasticity and flexibility of the air bag to plug the column beam joint, thereby greatly improving the plugging effect;
the construction method of the invention has effective and reliable plugging, and enables the self-compacting concrete pouring process to be continuous;
the air bag of the construction method has good expansion strength, good aging resistance, long service life and reusability;
the construction method of the invention fully combines the advantages of plugging dense mesh steel wire mesh and the air bag, and can be used as standardized construction;
the construction method is provided with the exhaust guide pipe, so that gas generated in the cavity of the column in the pouring process is led out, and the internal quality of the poured concrete is better.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a flow chart of a concrete pouring construction method for a section steel concrete column beam node provided by an embodiment of the invention;
FIG. 2 is a schematic diagram of a concrete pouring construction structure of a section steel concrete column beam node provided by the embodiment of the invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1, the embodiment provides a concrete pouring construction method for a section steel concrete column beam node, which includes:
step 1S 1: building a template supporting system;
step 2S 2: mounting a beam bottom template at the beam column node;
step 3S 3: binding beam steel bars at the beam-column joints, and installing a beam side template on one side;
step 4S 4: installing and plugging horizontal steel bars;
step 5S 5: mounting a dense mesh steel wire mesh at the beam column joint plugging part;
step 6S 6: exhausting the gas in the inflatable air bag, and placing the inflatable air bag outside the dense-mesh steel wire mesh in the beam;
step 7S 7: installing a beam side template on the other side, and inflating the air bag to realize plugging before pouring concrete at the beam column node;
step 8S 8: exhaust pipes are placed in the columns and the beams at the joints of the beam columns and the beams;
step 9S 9: and (5) finishing the installation of all the templates, and pouring the concrete after the inspection is qualified.
Specifically, in step 1S1, the installation of the column reinforcement at the beam-column node is completed, and then the formwork support system is set up.
Specifically, in step 2S2, when the beam reinforcement at the beam-column node is bound, the reinforcement at the beam-column node plugging portion is not bound.
Specifically, before the step 4S4 is performed, the blocking vertical steel bars are first installed 500 mm away from the column side on the upper plane of the beam.
Particularly, when the plugging vertical steel bar is installed, the plugging vertical steel bar and the beam are kept at an included angle of 45 degrees in the arrangement direction.
The concrete pouring construction method for the section steel concrete column beam node further comprises the following steps:
step 10: when the self-compacting concrete pouring height of the column at the node of the beam column reaches 1 m, the exhaust pipe moves up and down slowly.
Specifically, when the pouring of the self-compacting concrete of the column having a height of 1 m is completed, the step 10 is repeated until the pouring of the self-compacting concrete of the column is completed.
Specifically, the exhaust pipe is pulled out after the self-compacting concrete of the column is poured.
Specifically, after the self-compacting concrete is poured for one hour, the gas in the air bag is exhausted and then taken out.
Particularly, after the air bag is taken out, the reinforcing steel bars, the stirrups and the waist bars at the air bag placing position in the beam are restored and are firmly bound.
With reference to fig. 2, in the above embodiment, firstly, the installation of the column reinforcement 1 at the node of the beam column is completed, and the formwork support system 10 is set up;
a beam bottom template 8 is arranged at the joint of the beam column;
binding beam steel bars at the beam-column joints (the steel bars at the plugging positions are not bound temporarily), and installing one side of a beam side template 2;
installing plugging vertical steel bars 4 on the upper plane of the beam, which are 500 mm away from the column edge and form an included angle of 45 degrees;
installing a plugging horizontal reinforcing steel bar 5, and binding and fixing the plugging horizontal reinforcing steel bar 5, the waist bar 9 and the plugging vertical reinforcing steel bar 4 with a No. 22 iron wire;
dense mesh steel wire meshes 7 are arranged at the blocking positions of the beam-column joints and are fixed with the blocking vertical steel bars 4 and the blocking horizontal steel bars 5;
exhausting the gas in the inflatable air bag 6, and placing the inflatable air bag outside the dense-mesh steel wire mesh 7 in the beam (the side where concrete is not poured for the moment);
the installation of the side template 2 on the other side of the beam is finished, and the air bag 6 is inflated to realize the plugging before the concrete pouring at the node of the beam column;
the exhaust pipes 3 are placed on the columns and the beams at the joints of the beam columns and the beams;
completing the installation of all the templates, and pouring concrete after the templates are inspected to be qualified;
when the self-compacting concrete pouring height of the column at the node of the beam column reaches 1 m, the exhaust pipe 3 is slowly moved up and down, and the action is repeated when the self-compacting concrete pouring with the height of 1 m is completed until the self-compacting concrete pouring is completed;
after the self-compacting concrete of the column is poured, pulling out the exhaust pipe 3;
after the self-compacting concrete is poured for one hour, exhausting the gas in the air bag 6, taking out and cleaning;
and (4) restoring the steel bars (stirrups and waist bars) at the original air bag placing position in the beam, and binding firmly.
It can be seen that in the construction method of the embodiment, the air bag is used for carrying out secondary plugging on the nodes of the section steel concrete column beam, effective isolation of the plugging part is increased, gaps of the dense mesh steel wire gauze are sealed, overflow of self-compacting concrete to unnecessary parts during pouring is reduced to the maximum extent when the self-compacting concrete is poured to the nodes of the column beam, and an exhaust duct is additionally arranged to lead out unstable gas generated after pouring.
The method adopted by the embodiment utilizes the compressibility, elasticity and flexibility of the air bag to plug the column-beam joint, so that the plugging effect is greatly improved;
the construction method of the embodiment is effective and reliable in plugging, so that the self-compacting concrete pouring process is continuous;
the air bag of the construction method has the advantages of good expansion strength, good aging resistance, long service life and reusability;
the construction method of the embodiment fully combines the advantages of plugging the dense mesh steel wire mesh and the air bag, and can be used for standardized construction;
the construction method of the embodiment is provided with the exhaust guide pipe, so that gas generated in the cavity of the column in the pouring process is led out, and the internal quality of the poured concrete is better.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The concrete pouring construction method for the section steel concrete column beam node is characterized by comprising the following steps of:
step 1: building a template supporting system;
step 2: mounting a beam bottom template at the beam column node;
and step 3: binding beam steel bars at the beam-column joints, and installing a beam side template on one side;
and 4, step 4: installing and plugging horizontal steel bars;
and 5: mounting a dense mesh steel wire mesh at the beam column joint plugging part;
step 6: exhausting the gas in the inflatable air bag, and placing the inflatable air bag outside the dense-mesh steel wire mesh in the beam;
and 7: installing a beam side template on the other side, and inflating the air bag to realize plugging before pouring concrete at the beam column node;
and 8: exhaust pipes are placed in the columns and the beams at the joints of the beam columns and the beams;
and step 9: and (5) finishing the installation of all the templates, and pouring the concrete after the inspection is qualified.
2. The method for pouring concrete into a section steel concrete column node according to claim 1, wherein in the step 1, installation of column reinforcing steel bars at the column node is firstly completed, and then a formwork support system is erected.
3. The concrete pouring construction method for the section steel concrete column beam node according to claim 1, wherein in the step 2, when beam steel bars at the beam column node are bound, the steel bars at the blocking position of the beam column node are not bound temporarily.
4. The concrete pouring construction method for the section steel concrete column beam node according to claim 1, characterized in that before the step 4 is carried out, plugging vertical steel bars are firstly installed on the upper plane of the beam 500 mm away from the column side.
5. The section steel concrete column beam node concrete pouring construction method according to claim 4, wherein when the plugging vertical steel bars are installed, an included angle of 45 degrees is kept between the plugging vertical steel bars and the arrangement direction of the beam.
6. The concrete pouring construction method for the section steel concrete column beam node according to claim 1, characterized by further comprising:
step 10: when the self-compacting concrete pouring height of the column at the node of the beam column reaches 1 m, the exhaust pipe moves up and down slowly.
7. The method for constructing concrete pouring for a section steel concrete column beam node according to claim 6, wherein the step 10 is repeated once every time the pouring of the self-compacting concrete of the column having a height of 1 m is completed until the pouring of the self-compacting concrete of the column is completed.
8. The concrete pouring construction method for the section steel concrete column beam node according to claim 7, characterized in that the exhaust pipe is pulled out after the self-compacting concrete pouring of the column is completed.
9. The method for pouring concrete into a joint of a steel reinforced concrete column as recited in claim 8, wherein the gas in the air bag is exhausted and taken out after the self-compacting concrete is poured for one hour.
10. The concrete pouring construction method for the section steel concrete column beam node according to claim 9, wherein after the air bag is taken out, the reinforcing steel bars, the stirrups and the waist bars at the position where the air bag is placed in the beam are restored and are firmly bound.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011381875.2A CN112696026A (en) | 2020-11-30 | 2020-11-30 | Concrete pouring construction method for section steel concrete column beam node |
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| CN202011381875.2A CN112696026A (en) | 2020-11-30 | 2020-11-30 | Concrete pouring construction method for section steel concrete column beam node |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809671A (en) * | 2022-04-27 | 2022-07-29 | 中国一冶集团有限公司 | Structural joint plugging and column steel pipe aligning tool and construction method |
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| CN209799366U (en) * | 2019-01-28 | 2019-12-17 | 中建一局集团第二建筑有限公司 | Different intensity grade concrete of beam column node core space stop isolating device |
| CN210563393U (en) * | 2019-01-15 | 2020-05-19 | 广州市城建工程总承包有限公司 | Concrete beam column node construction based on gasbag |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101289879A (en) * | 2008-06-02 | 2008-10-22 | 南通华新建工集团有限公司 | Concrete beam-column node construction method |
| CN107724680A (en) * | 2016-08-11 | 2018-02-23 | 五冶集团上海有限公司 | A kind of high-storey building frame structure beam-column node construction method |
| CN107178209A (en) * | 2017-05-22 | 2017-09-19 | 中国五冶集团有限公司 | A kind of constructional column and agent structure integrated construction method |
| CN109610821A (en) * | 2018-11-19 | 2019-04-12 | 中冶天工集团有限公司 | A kind of non-equal strength concrete construction isolation air bag of bean column node and its construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809671A (en) * | 2022-04-27 | 2022-07-29 | 中国一冶集团有限公司 | Structural joint plugging and column steel pipe aligning tool and construction method |
| CN114809671B (en) * | 2022-04-27 | 2024-04-02 | 中国一冶集团有限公司 | Construction joint plugging and column steel pipe aligning tool and construction method |
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