CN116427536B - Assembled RC prefabricated column-RC beam connecting node and construction method thereof - Google Patents
Assembled RC prefabricated column-RC beam connecting node and construction method thereof Download PDFInfo
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- CN116427536B CN116427536B CN202310365810.6A CN202310365810A CN116427536B CN 116427536 B CN116427536 B CN 116427536B CN 202310365810 A CN202310365810 A CN 202310365810A CN 116427536 B CN116427536 B CN 116427536B
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- 238000010276 construction Methods 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 158
- 239000010959 steel Substances 0.000 claims abstract description 158
- 239000004567 concrete Substances 0.000 claims abstract description 14
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims 3
- 241001330002 Bambuseae Species 0.000 claims 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 3
- 239000011425 bamboo Substances 0.000 claims 3
- 239000007788 liquid Substances 0.000 claims 3
- 238000007569 slipcasting Methods 0.000 claims 3
- 238000000034 method Methods 0.000 claims 1
- 238000011161 development Methods 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 238000005056 compaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 210000000683 abdominal cavity Anatomy 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
-
- 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
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6801—Fillings therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
- E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/18—Spacers of metal or substantially of metal
-
- 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
-
- 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
- E04G21/14—Conveying or assembling building elements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses an assembled RC precast column-RC beam connecting node and a construction method thereof, wherein the connecting node comprises an upper connecting steel cylinder, a lower connecting steel cylinder, an RC precast column and an RC beam, an upper steel bar anchor plate is fixed in the upper connecting steel cylinder, a plurality of pegs are fixed on the cylinder wall above the upper steel bar anchor plate, and the upper connecting steel cylinder above the upper steel bar anchor plate is sleeved at the bottom end of the RC precast column above a beam column core area; a lower steel bar anchor plate is fixed in the lower connecting steel cylinder, a plurality of pegs are fixed on the cylinder wall below the lower steel bar anchor plate, and the longitudinal ribs of the RC precast column inner column below the beam column core region vertically penetrate through the beam column core region and the lower steel bar anchor plate and are locked through nuts; the upper connecting steel cylinder and the lower connecting steel cylinder are welded and sealed, and the inner space of the upper connecting steel cylinder, the lower connecting steel cylinder and the beam column core area is filled with concrete through a grouting assembly. The invention not only can ensure that the connection of the column longitudinal ribs is staggered in the beam column core area, but also can ensure the through arrangement of the column longitudinal ribs in the beam column core area, and has convenient and efficient construction and reliable connection quality.
Description
Technical Field
The invention relates to the technical field of assembly type building construction, in particular to an assembly type RC prefabricated column-RC beam connecting node and a construction method thereof.
Background
The assembled building in China has been developed for seventy years, from initial manual operation to mechanized production, from reference to advanced technology abroad to autonomous innovation, and the period of the assembled building is subjected to climax and has undershoot.
With the development of economy and science, the advantages of the cast-in-situ building mode gradually disappear, and the assembled building becomes the key development direction of the building industry in China in the future. Meanwhile, the country has been continuously out of the country among the past five years with a lot of critical policies to start to vigorously develop the fabricated building. The RC (Reinforce Concrete) column is used as one of the fabricated buildings and an important vertical supporting member thereof, the RC beam is used as a main bending member in the fabricated building, and the deep research on beam column nodes has a decisive influence on pushing the application and development of the fabricated building.
The reinforced concrete frame structure connecting node is a place where an upper RC column, a lower RC column, an RC beam and a floor slab are combined in a crossing way, and reinforcing bars are generally required to be reinforced in the structural design process, so that the longitudinal and transverse staggering of the reinforcing bars of the frame structure node is very dense, as an assembled concrete frame structure, the RC precast column, the RC precast beam, the precast floor slab and other components are all provided with reserved reinforcing bars, and how to enable the reinforcing bars to be assembled at one place is free from mutual collision, and the bearing capacity is reasonable, so that the reinforced concrete frame structure connecting node is a major problem which is required to be solved in factory prefabrication and on-site lifting assembly construction. Because node district reinforcing bar is intensive, RC precast column indulges muscle and always has construction space little, the connection degree of difficulty is big, the efficiency of construction is low, construction quality is difficult to guarantee when realizing that single post indulges muscle root by root connection through the mode of sleeve grout in the node.
Disclosure of Invention
The invention aims to provide an assembled RC prefabricated column-RC beam connecting node and a construction method thereof, which are used for solving the technical problems in the background technology.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
the connecting node comprises an upper connecting steel cylinder, a lower connecting steel cylinder, an RC prefabricated column and an RC beam, wherein the cross section shapes of the upper connecting steel cylinder and the lower connecting steel cylinder are matched with the cross section shape of the RC prefabricated column;
an upper steel bar anchor plate is fixed in the cylinder body of the upper connecting steel cylinder, the upper steel bar anchor plate divides the inner part of the upper connecting steel cylinder into an upper cylinder cavity and a lower cylinder cavity, a plurality of pegs are fixed on the cylinder wall of the cylinder cavity above the upper steel bar anchor plate, the upper connecting steel cylinder above the upper steel bar anchor plate is sleeved at the bottom end of an RC precast column above a beam column core area, an inner column longitudinal rib of the RC precast column penetrates the upper steel bar anchor plate and is locked by a nut, and the pegs above the upper steel bar anchor plate are buried in the RC precast column;
the bottom end of the lower connecting steel cylinder is correspondingly arranged at the top end of the beam column core area, a lower steel bar anchor plate is fixed in the cylinder body of the lower connecting steel cylinder, the lower steel bar anchor plate divides the inner part of the lower connecting steel cylinder into an upper cylinder cavity and a lower cylinder cavity, a plurality of pegs are fixed on the cylinder wall of the cylinder cavity below the lower steel bar anchor plate, and the RC precast column inner column longitudinal ribs below the beam column core area vertically penetrate through the beam column core area and the lower steel bar anchor plate and are locked through nuts;
the ends of the RC prefabricated columns and column hoop ribs of the beam column core area are arranged in an encrypted mode, and diagonal bracing reinforcing bars are fixedly arranged between column longitudinal ribs in the beam column core area;
the upper connecting steel cylinder lower opening and the lower connecting steel cylinder upper opening are vertically aligned and spliced together and are welded and sealed at the joint, and the inner space of the upper connecting steel cylinder, the lower connecting steel cylinder and the beam column core area is filled with concrete through a grouting assembly.
Preferably, the grouting assembly comprises a grouting pipe, an exhaust pipe and a slurry passing hole, wherein the grouting pipe and the exhaust pipe are arranged in an RC prefabricated column at the upper part of a beam column core area in a pre-buried mode, one end of each pipe body penetrates through an upper steel bar anchor plate and extends into a lower cylinder cavity of an upper connecting steel cylinder, the other end of each pipe body extends to the outer side of the RC prefabricated column, the grouting pipe and the exhaust pipe are communicated with the lower cylinder cavity of the upper connecting steel cylinder and the outside, the slurry passing hole is formed in the lower steel bar anchor plate, and the slurry passing hole is communicated with the lower connecting steel cylinder cavities at the upper side and the lower side of the lower steel bar anchor plate.
Preferably, the length of the column hoop reinforcement encryption section is not smaller than the long side dimension of the RC prefabricated column section.
Preferably, the grouting pipe and the exhaust pipe are arranged on the same diagonal line of the upper steel bar anchor plate, and the grouting pipe and the exhaust pipe are respectively arranged on two sides of the center of the upper steel bar anchor plate.
In addition, the invention also provides a construction method of the assembled RC prefabricated column-RC beam connecting node, which comprises the following steps:
firstly, manufacturing an RC prefabricated column, and fixing diagonal bracing steel bars, an upper connecting steel cylinder and a lower connecting steel cylinder at the tail end of a column longitudinal bar in advance;
step two, mounting RC prefabricated columns at the lower parts of the beam column core areas in position;
thirdly, constructing an RC beam;
hoisting the RC prefabricated column at the upper part of the beam column core area into position to vertically align the upper connecting steel cylinder with the lower connecting steel cylinder;
checking the RC prefabricated column position at the upper part of the beam column core area, and welding and fixing the upper connecting steel cylinder and the lower connecting steel cylinder at the joint of the upper connecting steel cylinder and the lower connecting steel cylinder;
step six, supporting a beam column core area template;
step seven, grouting concrete into the inner space of the upper connecting steel cylinder, the lower connecting steel cylinder and the beam column core area through a grouting assembly and vibrating for compaction;
and eighth, removing the mould after the concrete in the beam column core area reaches the preset strength, and carrying out hoisting construction on the next RC prefabricated column.
Compared with the prior art, the invention has the beneficial effects that: the invention realizes the effective connection of the vertical bars of the upper and lower solid precast columns in the core area of the beam column through the upper connecting steel cylinder and the lower connecting steel cylinder which are connected by welding, can ensure that the connection of the vertical bars of the column is staggered in the core area of the beam column, avoids the gradual connection of the vertical bars of the column in the core area of the beam column with narrow construction space, can ensure the through arrangement of the vertical bars of the column in the core area of the beam column, realizes the integral grouting in a concrete cast-in-situ mode between the closed abdominal cavity of the upper connecting steel cylinder and the lower connecting steel cylinder and the core area of the beam column, has convenient and efficient construction and reliable connection quality.
Drawings
The foregoing and/or other aspects and advantages of the present invention will become more apparent and more readily appreciated from the detailed description taken in conjunction with the following drawings, which are meant to be illustrative only and not limiting of the invention, wherein:
FIG. 1 is a schematic three-dimensional structure of an assembled RC precast column-RC beam connection node according to the present invention;
fig. 2 is a schematic three-dimensional structure of an assembled RC-prefabricated column-RC-beam connection node according to the present invention after removing part of the structure.
Reference numerals: 1. RC prefabricated column; 101. column longitudinal ribs; 102. column stirrups; 2. an RC beam; 201. a beam main rib; 202. beam stirrups; 3. the upper connecting steel cylinder; 4. a steel bar anchor plate is arranged; 5. the lower connecting steel cylinder; 6. a lower steel bar anchor plate; 7. a peg; 8. grouting components; 801. grouting pipe; 802. an exhaust pipe; 803. a pulp passing hole; 9. diagonal bracing of the steel bars; 10. and (3) a nut.
Detailed Description
Hereinafter, an embodiment of an assembled RC precast column-RC beam connection node and a construction method thereof of the present invention will be described with reference to the accompanying drawings. The examples described herein are specific embodiments of the present invention, which are intended to illustrate the inventive concept, are intended to be illustrative and exemplary, and should not be construed as limiting the invention to the embodiments and scope of the invention. In addition to the embodiments described herein, those skilled in the art can adopt other obvious solutions based on the disclosure of the claims and specification of the present application, including those adopting any obvious substitutions and modifications to the embodiments described herein.
In the description of the present invention, it should be noted that the terms "front", "rear", "left", "right", "top", "bottom", "upper", "lower", "inner", "outer", "transverse", "longitudinal", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The drawings in the present specification are schematic views, which assist in explaining the concept of the present invention, and schematically show the shapes of the respective parts and their interrelationships. Note that, in order to clearly show the structures of the components of the embodiments of the present invention, the drawings are not drawn to the same scale. Like reference numerals are used to denote like parts.
The principles and features of the present invention are described below with reference to the drawings, the illustrated embodiments are provided for illustration only and are not intended to limit the scope of the present invention. The preferred embodiment of the present invention is described in further detail below with reference to fig. 1-2, wherein in fig. 1-2, in order to more clearly embody the internal structure of the beam column, part of the beam column reinforcement is not embodied:
as shown in fig. 1-2, the preferred assembled RC precast column-RC beam connecting node of the present invention comprises an upper connecting steel cylinder 3, a lower connecting steel cylinder 5, an RC precast column 1 and an RC beam 2, wherein the cross-sectional shapes of the upper connecting steel cylinder 3 and the lower connecting steel cylinder 5 are matched with the cross-sectional shape of the RC precast column 1;
an upper steel bar anchor plate 4 is fixed in the cylinder body of the upper connecting steel cylinder 3, the upper steel bar anchor plate 4 divides the inner part of the upper connecting steel cylinder 3 into an upper cylinder cavity and a lower cylinder cavity, a plurality of pegs 7 are fixed on the cylinder wall of the cylinder cavity above the upper steel bar anchor plate 4, the upper connecting steel cylinder 3 above the upper steel bar anchor plate 4 is sleeved at the bottom end of the RC precast column 1 above a beam column core area, an inner column longitudinal rib 101 of the RC precast column 1 penetrates the upper steel bar anchor plate 4 and is locked through a nut 10, a backing plate can be additionally arranged between the nut 10 and the upper steel bar anchor plate 4, the pegs 7 above the upper steel bar anchor plate 4 are buried in the RC precast column 1, the binding strength of the upper connecting steel cylinder 3 and the RC precast column 1 can be effectively enhanced, and firm rooting of the upper connecting steel cylinder 3 is ensured;
the bottom end of the lower connecting steel cylinder 5 is correspondingly arranged at the top end of a beam column core area, a lower steel bar anchor plate 6 is fixed in the cylinder body of the lower connecting steel cylinder 5, the lower steel bar anchor plate 6 divides the inner part of the lower connecting steel cylinder 5 into an upper cylinder cavity and a lower cylinder cavity, a plurality of pegs 7 are fixed on the cylinder wall of the cylinder cavity below the lower steel bar anchor plate 6, an inner column longitudinal rib 101 of an RC precast column 1 below the beam column core area vertically penetrates through the beam column core area and the lower steel bar anchor plate 6 and is locked by a nut 10, and a backing plate can be additionally arranged between the nut 10 and the lower steel bar anchor plate 6;
the end of the RC precast column 1 and column hoop ribs 102 of a beam column core area are arranged in an encrypted mode, the length of an encrypted section of each column hoop rib 102 is not smaller than the long side size of the section of the RC precast column 1, diagonal bracing steel bars 9 are fixedly arranged between column longitudinal ribs 101 in the beam column core area, and the arrangement of the encrypted column hoop ribs 102 and the diagonal bracing steel bars 9 is used for improving the structural strength and the shear strength of a beam column connecting node;
the lower opening of the upper connecting steel cylinder 3 and the upper opening of the lower connecting steel cylinder 5 are vertically aligned and spliced together and welded and sealed at the joint, the total height of the upper connecting steel cylinder 3 and the lower connecting steel cylinder 5 is 40-150cm, and the inner spaces of the upper connecting steel cylinder 3, the lower connecting steel cylinder 5 and the beam column core area are filled with concrete through a grouting assembly 8;
as shown in fig. 2, the grouting assembly 8 includes a grouting pipe 801, an exhaust pipe 802 and a via hole 803, where the grouting pipe 801 and the exhaust pipe 802 are both arranged in an embedded manner in the RC precast column 1 at the upper part of the beam column core region, the grouting pipe 801 and the exhaust pipe 802 are disposed on the same diagonal line of the upper steel anchor plate 4, the grouting pipe 801 and the exhaust pipe 802 are respectively disposed at two sides of the central position of the upper steel anchor plate 4, one ends of the grouting pipe 801 and the exhaust pipe 802 penetrate through the upper steel anchor plate 4 and extend into the lower cylinder cavity of the upper connecting steel cylinder 3, the other ends extend to the outside of the RC precast column 1, the grouting pipe 801 and the exhaust pipe 802 communicate the lower cylinder cavity of the upper connecting steel cylinder 3 with the outside, the via hole 803 is disposed on the lower steel anchor plate 6, and the via hole 803 communicates the lower connecting steel cylinder 5 cylinders at the upper and lower sides of the lower steel anchor plate 6, so that the communicating space can not only realize integral grouting, but also ensure the integrity of the concrete body after solidification, thereby improving the strength of the node, and ensuring grouting quality, the number of grouting pipe 801, the number and the exhaust pipe diameter, and the size of the via hole 803 are all required to be calculated and the size of the via hole 803 are opened;
in addition, the invention also provides a construction method of the assembled RC prefabricated column-RC beam connecting node, which comprises the following steps:
firstly, manufacturing an RC prefabricated column 1, if the RC beam is in a prefabricated beam form, synchronously manufacturing the prefabricated beam at the moment, fixing diagonal bracing steel bars 9 at the tail end of a column longitudinal rib 101 in advance, sleeving an upper connecting steel cylinder 3 and a lower connecting steel cylinder 5 at the tail end of the column longitudinal rib 101, and locking and fixing through nuts 10;
step two, mounting an RC prefabricated column 1 at the lower part of a beam column core area in place;
thirdly, constructing an RC beam 2, wherein the structural form of the RC beam 2 is not limited, and can be a cast-in-situ beam, a superposed beam or a precast beam;
hoisting the RC precast column 1 at the upper part of the beam column core area into position, adjusting the position of the RC precast column 1 at the upper part of the beam column core area to vertically align the upper connecting steel cylinder 3 with the lower connecting steel cylinder 5, and fixing the RC precast column 1 at the upper part of the beam column core area through temporary fixing measures;
checking the position of the RC prefabricated column 1 at the upper part of the beam column core area, and welding and fixing the joint of the upper connecting steel cylinder 3 and the lower connecting steel cylinder 5 by slope welding;
step six, supporting a beam column core area template;
step seven, grouting concrete into the inner space of the upper connecting steel cylinder 3, the lower connecting steel cylinder 5 and the beam column core area through the grouting assembly 8 and vibrating for compaction;
and step eight, removing the mould after the concrete in the beam column core area reaches the preset strength, and carrying out hoisting construction on the next RC prefabricated column 1.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (4)
1. An assembled RC precast column-RC roof beam connected node which characterized in that: the steel tube connecting structure comprises an upper connecting steel tube (3), a lower connecting steel tube (5), an RC prefabricated column (1) and an RC beam (2), wherein the cross section shapes of the upper connecting steel tube (3) and the lower connecting steel tube (5) are matched with the cross section shape of the RC prefabricated column (1);
an upper steel bar anchor plate (4) is fixed inside the cylinder body of the upper connecting steel cylinder (3), the upper steel bar anchor plate (4) divides the inner part of the upper connecting steel cylinder (3) into an upper cylinder cavity and a lower cylinder cavity, a plurality of pegs (7) are fixed on the cylinder wall of the cylinder cavity above the upper steel bar anchor plate (4), the upper connecting steel cylinder (3) above the upper steel bar anchor plate (4) is sleeved at the bottom end of an RC precast column (1) above a beam column core area, an inner column longitudinal rib (101) of the RC precast column (1) penetrates through the upper steel bar anchor plate (4) and is locked through a nut (10), and the pegs (7) above the upper steel bar anchor plate (4) are buried in the RC precast column (1);
the bottom end of the lower connecting steel cylinder (5) is correspondingly arranged at the top end of the beam column core area, a lower steel bar anchor plate (6) is fixed in the cylinder body of the lower connecting steel cylinder, the lower steel bar anchor plate (6) divides the inner part of the lower connecting steel cylinder (5) into an upper cylinder cavity and a lower cylinder cavity, a plurality of pegs (7) are fixed on the cylinder wall of the cylinder cavity below the lower steel bar anchor plate (6), and an inner column longitudinal rib (101) of an RC precast column (1) below the beam column core area vertically penetrates through the beam column core area and the lower steel bar anchor plate (6) and is locked through nuts (10);
the ends of the RC prefabricated columns (1) and column hoop ribs (102) of the beam column core area are arranged in an encrypted mode, and diagonal bracing reinforcing bars (9) are fixedly arranged between column longitudinal ribs (101) in the beam column core area;
the lower opening of the upper connecting steel cylinder (3) and the upper opening of the lower connecting steel cylinder (5) are vertically aligned and spliced together and are welded and sealed at the joint, and the inner spaces of the upper connecting steel cylinder (3), the lower connecting steel cylinder (5) and the beam column core area are fully filled with concrete through a grouting component (8);
grouting assembly (8) are including slip casting pipe (801), blast pipe (802) and through thick liquid hole (803), slip casting pipe (801) and blast pipe (802) are all arranged in beam column core district upper portion RC precast column (1) with pre-buried mode, and two body one end runs through steel bar anchor plate (4) and extends to in upper connection steel drum (3) lower part section of thick bamboo chamber, and the other end extends to RC precast column (1) outside, and slip casting pipe (801) and blast pipe (802) are with last connection steel drum (3) lower part section of thick bamboo chamber and external intercommunication, through thick liquid hole (803) set up on lower steel bar anchor plate (6), and through thick liquid hole (803) are with lower connection steel drum (5) section of thick bamboo chamber intercommunication of lower steel bar anchor plate (6) upper and lower both sides.
2. A fabricated RC precast column-RC beam connection node as defined in claim 1, wherein: the length of the encryption section of the column hoop rib (102) is not smaller than the long side dimension of the section of the RC prefabricated column (1).
3. A fabricated RC precast column-RC beam connection node as defined in claim 1, wherein: grouting pipe (801) and blast pipe (802) set up on last reinforcing bar anchor plate (4) same diagonal, and grouting pipe (801) and blast pipe (802) set up in last reinforcing bar anchor plate (4) central point put both sides respectively.
4. A construction method of an assembled RC precast column-RC beam connection node, applied to a construction process of the assembled RC precast column-RC beam connection node according to any one of claims 1 to 3, comprising the following steps:
firstly, manufacturing an RC prefabricated column (1), and fixing diagonal bracing steel bars (9), an upper connecting steel cylinder (3) and a lower connecting steel cylinder (5) at the tail end of a column longitudinal rib (101) in advance;
step two, mounting an RC prefabricated column (1) at the lower part of a beam column core area in place;
thirdly, constructing an RC beam (2);
hoisting an RC prefabricated column (1) at the upper part of a beam column core area into position, and vertically aligning an upper connecting steel cylinder (3) with a lower connecting steel cylinder (5);
checking the position of an RC prefabricated column (1) at the upper part of a beam column core area, and welding and fixing an upper connecting steel cylinder (3) and a lower connecting steel cylinder (5) at the joint of the upper connecting steel cylinder and the lower connecting steel cylinder;
step six, supporting a beam column core area template;
step seven, the grouting assembly (8) is used for upwards connecting the steel cylinder (3), the lower connecting steel cylinder (5) and the inner space of the beam column core area, and concrete is poured and vibrated tightly;
and eighth, removing the mould after the concrete in the beam column core area reaches the preset strength, and carrying out hoisting construction on the next RC prefabricated column (1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310365810.6A CN116427536B (en) | 2023-04-07 | 2023-04-07 | Assembled RC prefabricated column-RC beam connecting node and construction method thereof |
| JP2024051489A JP2024149409A (en) | 2023-04-07 | 2024-03-27 | Prefabricated RC precast column-RC beam connection node and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310365810.6A CN116427536B (en) | 2023-04-07 | 2023-04-07 | Assembled RC prefabricated column-RC beam connecting node and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116427536A CN116427536A (en) | 2023-07-14 |
| CN116427536B true CN116427536B (en) | 2024-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310365810.6A Active CN116427536B (en) | 2023-04-07 | 2023-04-07 | Assembled RC prefabricated column-RC beam connecting node and construction method thereof |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2024149409A (en) |
| CN (1) | CN116427536B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR930018112A (en) * | 1992-02-22 | 1993-09-21 | 김선자 | Connection method of pre cast concrete member |
| CN103741817A (en) * | 2013-12-31 | 2014-04-23 | 天津大学 | Enhancement method of X-shaped reinforcing bars for improving seismic resistance of special-shaped column nodes |
| CN104775516A (en) * | 2015-02-16 | 2015-07-15 | 清华大学 | Field connecting method among prefabricated reinforced concrete columns |
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| CN113152669A (en) * | 2021-03-22 | 2021-07-23 | 河北工业大学 | Assembly type reinforced concrete column and column splicing structure and method |
| CN214329264U (en) * | 2020-11-24 | 2021-10-01 | 赵成国 | Assembly joint of column top beam and column |
| CN115653098A (en) * | 2022-11-10 | 2023-01-31 | 海南大学 | Assembled reinforced concrete beam-column connecting structure and construction method thereof |
| CN115680116A (en) * | 2022-11-10 | 2023-02-03 | 海南大学 | Assembled frame beam column connecting node and construction method thereof |
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2023
- 2023-04-07 CN CN202310365810.6A patent/CN116427536B/en active Active
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2024
- 2024-03-27 JP JP2024051489A patent/JP2024149409A/en active Pending
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| CN103741817A (en) * | 2013-12-31 | 2014-04-23 | 天津大学 | Enhancement method of X-shaped reinforcing bars for improving seismic resistance of special-shaped column nodes |
| CN104775516A (en) * | 2015-02-16 | 2015-07-15 | 清华大学 | Field connecting method among prefabricated reinforced concrete columns |
| CN209211618U (en) * | 2018-10-19 | 2019-08-06 | 建研科技股份有限公司 | A kind of assembly concrete frame |
| CN214329264U (en) * | 2020-11-24 | 2021-10-01 | 赵成国 | Assembly joint of column top beam and column |
| CN113152669A (en) * | 2021-03-22 | 2021-07-23 | 河北工业大学 | Assembly type reinforced concrete column and column splicing structure and method |
| CN115653098A (en) * | 2022-11-10 | 2023-01-31 | 海南大学 | Assembled reinforced concrete beam-column connecting structure and construction method thereof |
| CN115680116A (en) * | 2022-11-10 | 2023-02-03 | 海南大学 | Assembled frame beam column connecting node and construction method thereof |
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| JP2024149409A (en) | 2024-10-18 |
| CN116427536A (en) | 2023-07-14 |
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