CN114737674A - Construction method for building beam-column dry connection - Google Patents
Construction method for building beam-column dry connection Download PDFInfo
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- CN114737674A CN114737674A CN202210369696.XA CN202210369696A CN114737674A CN 114737674 A CN114737674 A CN 114737674A CN 202210369696 A CN202210369696 A CN 202210369696A CN 114737674 A CN114737674 A CN 114737674A
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- precast
- column
- section steel
- precast beam
- prefabricated
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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
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
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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
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
- E04B1/215—Connections specially adapted therefor comprising metallic plates or parts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/0604—Prismatic or cylindrical reinforcement cages composed of longitudinal bars and open or closed stirrup rods
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/0604—Prismatic or cylindrical reinforcement cages composed of longitudinal bars and open or closed stirrup rods
- E04C5/0609—Closed cages composed of two or more coacting cage parts, e.g. transversally hinged or nested parts
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a construction method for building beam-column dry connection, which comprises the following steps: s1: preparing a prefabricated column, and pre-burying section steel joints at the top and the bottom of the prefabricated column; s2: preparing a precast beam, and embedding section steel joints at two ends of the precast beam; s3: embedding a base section steel joint on a base layer; the prefabricated concrete structure is spliced at the splicing speed of the steel structure, so that the construction period is greatly shortened, the financial cost is greatly reduced, meanwhile, the number of required personnel on site is greatly reduced, the investment of human resources is greatly saved, and the economic benefit is greatly improved.
Description
Technical Field
The invention relates to the technical field of building structures, in particular to a construction method for building beam-column dry connection.
Background
With the gradual development of assembly type buildings, the prefabricated parts can ensure the supply on site; but the assembly speed of the on-site prefabricated parts seriously restricts the construction progress and the production circulation of a factory; the assembling speed is mainly limited by the connection mode of the nodes, the traditional wet connection is adopted, the upper-layer construction can be continued only after the strength is met, otherwise, the problems of potential safety hazards and unqualified construction quality can be caused, the construction period is long, more workers are required for field operation in the traditional wet connection, and the cost of human resources is high.
Disclosure of Invention
The invention aims to provide a construction method for building beam-column dry connection, aiming at the problems that the construction period is longer and the human resource input is higher due to the fact that a wet connection mode is adopted for building beams-columns in the prior art.
The technical scheme for realizing the purpose of the invention is as follows: a construction method for building beam-column dry connection comprises the following steps:
s1: preparing a prefabricated column, and pre-burying section steel joints at the top and the bottom of the prefabricated column;
s2: preparing a precast beam, and embedding section steel joints at two ends of the precast beam;
s3: pre-burying a base section steel joint on a base;
s4: installing a first layer of prefabricated column, and performing bolt welding on a section steel joint at the bottom of the prefabricated column and a base layer section steel joint;
s5: installing a first layer of precast beam, and respectively performing bolt welding on the section steel joints at two ends of the first layer of precast beam and the section steel joints at the tops of two first layer of precast columns;
s6: installing the upper prefabricated column, and performing bolt welding on the section steel joint at the bottom of the upper prefabricated column and the section steel joint at the top of the lower prefabricated column;
s7: installing an upper-layer precast beam, and respectively bolting and welding profile steel joints at two ends of the upper-layer precast beam with profile steel joints at the tops of two upper-layer precast columns;
s8: pouring concrete in the node area to complete connection;
s9: and repeating S6-S8 until all the prefabricated columns reach the designed elevation.
The main body part of the prefabricated column is made of prefabricated reinforced concrete, the section size of the prefabricated column is 450mm multiplied by 450mm, and the reinforcement type is 12C 20; the stirrup is C10@ 100.
The precast beam main body is a precast superposed beam; the size of the section of the precast beam is 500mm multiplied by 250 mm; the reinforcement formula of precast beam main part does: the main rib 4C 16; 3C16, N2C 16; c10; the stirrup is C10@ 50; the prefabricated beam ends are double-encryption areas, and the stirrups are 5C10@50 and C10@100 respectively.
The section steel joint is a dog-bone type section steel joint.
The concrete installation steps of the precast beams in the S5 and S7 are as follows:
a 1: hoisting the precast beam to enable bolt holes on the section steel joints at two ends of the precast beam to respectively correspond to bolt holes on the section steel joints at the top of the precast column;
a 2: connecting a web plate of the section steel joint on the precast beam with a web plate of the section steel joint at the top of the precast column through a bolt;
a 3: and connecting the section steel joint on the precast beam with the upper flange and the lower flange of the section steel joint at the top of the precast column in a welding mode.
The material of shaped steel joint is Q235B.
By adopting the technical scheme, the invention has the following beneficial effects: (1) the prefabricated concrete structure is spliced at the splicing speed of the steel structure, so that the construction period is greatly shortened, the financial cost is greatly reduced, meanwhile, the number of required personnel on site is greatly reduced, the investment of human resources is greatly saved, and the economic benefit is greatly improved.
(2) The prefabricated column adopts reinforced concrete, the section size of the prefabricated column is 450mm multiplied by 450mm, and the reinforcing bar type is 12C 20; the stirrup is C10@100, so that the structural stability of the prefabricated column is greatly improved, and the building quality is ensured.
(3) The main body of the precast beam is a precast superposed beam; the size of the section of the precast beam is 500mm multiplied by 250 mm; the reinforcing bar formula of precast beam main part does: a main rib 4C 16; 3C16, N2C 16; c10; the stirrup is C10@ 50; the end part of the precast beam is a double-encryption area, and the stirrups are respectively 5C10@50 and C10@100, so that the stability of the whole structure of the precast beam is greatly improved, and the building quality is further ensured.
(4) The steel section joint can adopt a dog-bone type steel section joint, and the anti-seismic performance of the steel section joint can be improved.
(5) The section steel joint of the precast beam and the section steel joint at the top of the precast column are firstly connected through the bolt and then fixed in a welding connection mode, so that the firmness of connection between the precast beam and the precast column is ensured, and the building quality is further ensured.
(6) The material of the section steel joint adopts Q235B to meet the bolt welding requirement.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings, in which
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
Fig. 3 is a sectional view taken along line B-B in fig. 1.
Fig. 4 is a cross-sectional view taken along line C-C of fig. 1.
Fig. 5 is a cross-sectional view taken along line D-D of fig. 1.
Fig. 6 is a cross-sectional view taken along line E-E of fig. 1.
The reference numbers in the drawings are:
Detailed Description
(example 1)
Referring to fig. 1 to 6, the construction method for building beam-column dry connection of the embodiment includes the following steps:
s1: preparing a prefabricated column 1, and pre-burying section steel joints at the top and the bottom of the prefabricated column 1;
s2: preparing a precast beam 2, and pre-burying section steel joints at two ends of the precast beam 2;
s3: pre-burying a base section steel joint on a base;
s4: installing a first layer of prefabricated column 1, and performing bolt welding on a section steel joint at the bottom of the prefabricated column 1 and a base section steel joint;
s5: installing a first layer of precast beam 2, and respectively bolting and welding profile steel joints at two ends of the first layer of precast beam 2 with profile steel joints at the tops of two first layer of precast columns 1;
s6: installing the upper prefabricated column 1, and bolting and welding the section steel joint at the bottom of the upper prefabricated column 1 and the section steel joint at the top of the lower prefabricated column 1;
s7: installing an upper-layer precast beam 2, and respectively bolting and welding profile steel joints at two ends of the upper-layer precast beam 2 with profile steel joints at the tops of two upper-layer precast columns 1;
s8: pouring concrete in the node area to complete connection;
s9: and repeating the steps from S6 to S8 until all the prefabricated columns 1 reach the designed elevation.
Furthermore, the main body part of the prefabricated column 1 adopts prefabricated reinforced concrete, the section size of the prefabricated column 1 is 450mm multiplied by 450mm, and the reinforcement type is 12C 20; the stirrup is C10@ 100.
Further, the main body of the precast beam 2 is a precast composite beam; the size of the section of the precast beam 2 is 500mm multiplied by 250 mm; the reinforcement formula of 2 main parts of precast beam does: a main rib 4C 16; 3C16, N2C 16; c10; the stirrup is C10@ 50; the end parts of the precast beams 2 are double-encryption areas, and the stirrups are respectively 5C10@50 and C10@ 100.
Furthermore, the section steel joint is a dog-bone type section steel joint so as to improve the anti-seismic performance of the section steel joint.
Further, the specific installation steps of the precast beam 2 in S5 and S7 are as follows:
a 1: hoisting the precast beam 2 so that bolt holes on the section steel joints at two ends of the precast beam 2 respectively correspond to bolt holes on the section steel joints at the top of the precast column 1;
a 2: connecting a web plate of the section steel joint on the precast beam 2 with a web plate of the section steel joint at the top of the precast column 1 through a bolt;
a 3: and connecting the section steel joint on the precast beam 2 with the upper and lower flanges of the section steel joint at the top of the precast column 1 in a welding mode.
Preferably, the material of the steel section joint is Q235B to meet the bolt welding requirement.
The section steel joints at the bottom of the prefabricated column 1 and on the base layer are cross-shaped section steel, the cross-shaped section steel is fixedly connected with a bolt through a web plate and then welded, and the section steel joints at two ends of the prefabricated beam 2 are all H-shaped section steel; the concrete structure of the section steel at the top of the prefabricated column 1 comprises square pipe section steel, two cross section steel and H-shaped steel; square pipe shaped steel hypomere is pre-buried at prefabricated post 1's top through with a cross shaped steel bolt after welding, and the upper segment stretches out prefabricated post 1 top, and on H shaped steel located the side that steel pipe shaped steel stretches out prefabricated post 1 top, concrete mode of setting was: h-shaped steel is arranged on two adjacent side surfaces, H-shaped steel is arranged on three side surfaces, and H-shaped steel is arranged on four side surfaces, so that the use of all positions can be ensured; the other cross-shaped steel is fixed inside the square pipe-shaped steel, extends out of the upper part of the square pipe-shaped steel, is fixedly connected with the cross at the bottom of the upper prefabricated column 1 through a web and a bolt, and is welded; the H-shaped steel on the precast beam 2 is fixedly connected with the H-shaped steel on the square tube-shaped steel through a web plate and a bolt, and then welded.
The construction method of building beam column dry-type connection of this embodiment, through the pre-buried shaped steel joint in prefabricated post 1 and the both ends of precast beam 2, through the connection of shaped steel joint, simple to operate's advantage not only has, and adopt the floor of assembled, on-the-spot scaffold frame and support die block no longer need be set up, shaped steel joint is assembled and is connected for full dry-type, the technology is ripe, the installation rate is fast, can realize assembling prefabricated concrete structure with the speed of assembling of steel construction, thereby great the construction cycle that has shortened, reduce financial cost by a wide margin, simultaneously, the required personnel of on-the-spot reduce by a wide margin, the input of manpower resources has been practiced thrift greatly, economic benefits improves greatly.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A construction method for building beam-column dry connection is characterized by comprising the following steps:
s1: preparing a prefabricated column (1), and pre-burying section steel joints at the top and the bottom of the prefabricated column (1);
s2: preparing a precast beam (2), and embedding section steel joints at two ends of the precast beam (2);
s3: pre-burying a base section steel joint on a base;
s4: installing a first layer of prefabricated column (1), and performing bolt welding on a section steel joint at the bottom of the prefabricated column (1) and a base layer section steel joint;
s5: installing a first layer of precast beam (2), and respectively bolting and welding profile steel joints at two ends of the first layer of precast beam (2) with profile steel joints at the tops of two first layer of precast columns (1);
s6: installing the upper prefabricated column (1), and bolting and welding the section steel joint at the bottom of the upper prefabricated column (1) with the section steel joint at the top of the lower prefabricated column (1);
s7: installing an upper-layer precast beam (2), and respectively bolting and welding profile steel joints at two ends of the upper-layer precast beam (2) with profile steel joints at the tops of two upper-layer precast columns (1);
s8: pouring concrete in the node area to complete connection;
s9: and repeating the steps from S6 to S8 until all the prefabricated columns (1) reach the designed elevation.
2. The construction method for building beam-column dry type connection according to claim 1, characterized in that: the main body part of the prefabricated column (1) adopts prefabricated reinforced concrete, the section size of the prefabricated column (1) is 450mm multiplied by 450mm, and the reinforcement type is 12C 20; the stirrup is C10@ 100.
3. The construction method for building beam-column dry connection according to claim 1, wherein: the main body of the precast beam (2) is a precast superposed beam; the section size of the precast beam (2) is 500mm multiplied by 250 mm; the reinforcing bar formula of precast beam (2) main part does: the main rib 4C 16; 3C16, N2C 16; c10; the stirrup is C10@ 50; the end parts of the precast beams (2) are double-encryption areas, and the stirrups are respectively 5C10@50 and C10@ 100.
4. The construction method for building beam-column dry connection according to claim 1, wherein: the concrete installation steps of the precast beam (2) in the S5 and S7 are as follows:
a 1: hoisting the precast beam (2) to enable bolt holes on section steel joints at two ends of the precast beam (2) to respectively correspond to bolt holes on section steel joints at the top of the precast column (1);
a 2: connecting a web plate of the section steel joint on the precast beam (2) with a web plate of the section steel joint on the top of the precast column (1) through a bolt;
a 3: and connecting the section steel joint on the precast beam (2) with the upper and lower flanges of the section steel joint at the top of the precast column (1) in a welding mode.
5. The construction method for building beam-column dry connection according to claim 1, wherein: the material of shaped steel joint is Q235B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210369696.XA CN114737674A (en) | 2022-04-08 | 2022-04-08 | Construction method for building beam-column dry connection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210369696.XA CN114737674A (en) | 2022-04-08 | 2022-04-08 | Construction method for building beam-column dry connection |
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| CN114737674A true CN114737674A (en) | 2022-07-12 |
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| CN113585456A (en) * | 2021-08-26 | 2021-11-02 | 中国建筑科学研究院有限公司 | Precast concrete beam column connection node structure and construction method |
| CN113863494A (en) * | 2021-09-30 | 2021-12-31 | 广东普发建筑有限公司 | Assembly type concrete beam column connecting node and mounting method thereof |
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| CN104499568A (en) * | 2014-12-19 | 2015-04-08 | 东南大学 | Square steel pipe fabricated column-prefabricated superposed beam integrally-fabricated frame and construction method |
| CN106149873A (en) * | 2016-08-18 | 2016-11-23 | 佛山电力设计院有限公司 | Prefabricated assembled concrete frame construction and preparation method thereof |
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