CN112922233A - Reinforced concrete prefabricated column and construction method thereof - Google Patents
Reinforced concrete prefabricated column and construction method thereof Download PDFInfo
- Publication number
- CN112922233A CN112922233A CN202110113773.0A CN202110113773A CN112922233A CN 112922233 A CN112922233 A CN 112922233A CN 202110113773 A CN202110113773 A CN 202110113773A CN 112922233 A CN112922233 A CN 112922233A
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- column
- prefabricated
- prefabricated column
- hoop
- reinforced concrete
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- 238000010276 construction Methods 0.000 title claims abstract description 41
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 41
- 238000003466 welding Methods 0.000 claims abstract description 28
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 230000002787 reinforcement Effects 0.000 claims description 24
- 239000004567 concrete Substances 0.000 claims description 13
- 239000011440 grout Substances 0.000 claims description 3
- 239000003351 stiffener Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 2
- 238000000034 method Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000011376 self-consolidating concrete Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- E04C5/0618—Closed cages with spiral- or coil-shaped stirrup rod
Abstract
The invention discloses a reinforced concrete prefabricated column and a construction method thereof, wherein the construction method of the reinforced concrete prefabricated column comprises the following steps: obtaining a hoop plate, wherein a stud is arranged on the inner side surface of the hoop plate; welding a circumferential reinforcing piece in the hoop plate; arranging longitudinal bars and hooping for binding the longitudinal bars; respectively pouring and manufacturing an upper prefabricated column and a lower prefabricated column by taking the annular reinforcing pieces in the two hoop plates as boundary supporting molds; and welding the hoop plate of the upper column of the prefabricated column and the hoop plate of the lower column of the prefabricated column. The prefabricated column upper column and the prefabricated column lower column can be poured in advance in a factory and the like, so that the construction steps of the reinforced concrete prefabricated column are greatly simplified, and the construction efficiency is improved; the prefabricated column upper column and the prefabricated column lower column are connected through the welding hoop plate, the welding surface is the end surface of the hoop plate, the welding position is simple in structure and convenient to operate, and meanwhile the connection strength and rigidity of the connection position of the prefabricated column are guaranteed.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a construction method of a reinforced concrete prefabricated column. In addition, the invention also relates to a reinforced concrete prefabricated column applying the construction method of the reinforced concrete prefabricated column.
Background
Because the field construction has the characteristics of low production efficiency, high resource waste rate, poor quality control, large environmental influence and the like, the assembly type building is vigorously developed in recent years for improving the production efficiency and the construction quality and reducing the environmental pollution.
In order to ensure the integral stress performance of the fabricated building, the components are connected through the nodes so as to be stressed together under the load action. Because the stress mechanism of the building structure is complex, the node is usually not in a single stress state, and the node is required to have enough strength and rigidity.
Existing fabricated concrete structures primarily include dry and wet joints. The existing dry construction process is complex, and the connection quality is easily influenced by materials and operation technologies; the wet connection is post-cast concrete, the field operation difficulty is high, and the concrete pouring needs a template, so that the construction process is complex, the operation is complex, the construction requirement is high, and the construction progress is seriously influenced.
In summary, how to provide a reinforced concrete precast column construction method convenient for construction is an urgent problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the invention aims to provide a construction method of a reinforced concrete prefabricated column, which is simple in connection mode and convenient to construct by connecting prefabricated columns on two sides through welding hoop plates.
In addition, the invention also provides a reinforced concrete prefabricated column applying the construction method of the reinforced concrete prefabricated column.
In order to achieve the above purpose, the invention provides the following technical scheme:
a construction method of a reinforced concrete precast column includes:
obtaining a hoop plate, wherein a stud is arranged on the inner side surface of the hoop plate;
welding a circumferential reinforcement in the hoop plate;
arranging longitudinal bars and hooping for binding the longitudinal bars;
respectively pouring and manufacturing an upper prefabricated column and a lower prefabricated column by taking the annular reinforcing pieces in the two hoop plates as boundary supporting molds;
and welding the hoop plate of the prefabricated column upper column and the hoop plate of the prefabricated column lower column.
Preferably, the method further comprises the following steps:
and pouring concrete between the annular reinforcing piece of the prefabricated column upper column and the annular reinforcing piece of the prefabricated column lower column.
Preferably, the hoop plate of the prefabricated upper column is provided with a grouting opening.
Preferably, a plurality of vertical stiffening ribs are arranged in the hoop plate of the upper column of the prefabricated column and the hoop plate of the lower column of the prefabricated column.
Preferably, the hoop reinforcement comprises a hoop reinforcement plate and a split anchor bar.
Preferably, both ends of the split anchor bar are plug-welded or in threaded connection with the inner side surface of the hoop plate.
Preferably, the hoop reinforcing plate is provided with longitudinal bar mounting holes for mounting longitudinal bars, and the longitudinal bars penetrate through the longitudinal bar mounting holes and then are connected with the hoop reinforcing plate.
A reinforced concrete prefabricated column comprises a prefabricated column upper column and a prefabricated column lower column, wherein hoop plates are sleeved on the lower end of the prefabricated column upper column and the upper end of the prefabricated column lower column in the circumferential direction, and circumferential reinforcements are arranged on the lower end face of the prefabricated column upper column and the upper end face of the prefabricated column lower column and connected with the corresponding hoop plates;
the hoop plate of the prefabricated column upper column is connected with the hoop plate of the prefabricated column lower column in a welding mode.
Preferably, the hoop plate is provided with the hoop reinforcement at one end far away from the welding connection surface.
The pouring of the upper column and the lower column of the prefabricated column in the construction method of the reinforced concrete prefabricated column can be completed in advance in factories and the like, and the pouring process is not limited to be completed on a construction site, so that the construction steps of the reinforced concrete prefabricated column are greatly simplified, and the construction efficiency is improved.
The prefabricated column upper column and the prefabricated column lower column are connected through the welding hoop plate, the welding surface is the end surface of the hoop plate, the welding position is simple in structure, easy to weld and convenient to operate, and meanwhile the connecting strength and rigidity of the prefabricated column connecting part are guaranteed.
In addition, the invention also provides a reinforced concrete prefabricated column applying the construction method of the reinforced concrete prefabricated column.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural view of a reinforced concrete prefabricated column according to a first embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1 in the direction A-A;
FIG. 3 is a schematic structural view of a second embodiment of a prefabricated reinforced concrete column according to the present invention;
FIG. 4 is a schematic structural view of a third embodiment of a prefabricated reinforced concrete column according to the present invention;
FIG. 5 is a schematic structural view of a reinforced concrete prefabricated column according to a fourth embodiment of the present invention
FIG. 6 is a schematic cross-sectional view of FIG. 5 in the direction B-B;
FIG. 7 is a schematic structural view of a fifth embodiment of a prefabricated reinforced concrete column according to the present invention;
fig. 8 is a schematic structural diagram of a sixth embodiment of the reinforced concrete prefabricated column provided by the invention.
In fig. 1-8:
01 is a prefabricated column upper column, 02 is a prefabricated column lower column, 1 is a hoop plate, 11 is a grouting opening, 12 is a stud, 2 is a circumferential reinforcing plate, 3 is a split anchor bar and 4 is a longitudinal bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the invention is to provide a construction method of the reinforced concrete prefabricated column, the prefabricated columns at two sides are connected by welding the hoop plate, the connection mode is simple, and the construction is convenient.
In addition, the invention also provides a reinforced concrete prefabricated column applying the construction method of the reinforced concrete prefabricated column.
Please refer to fig. 1-8.
It should be noted that, in this document, the prefabricated column upper column 01 and the prefabricated column lower column 02 are collectively referred to as a prefabricated column, the connection end of the prefabricated column refers to the lower end of the prefabricated column upper column 01 and the upper end of the prefabricated column lower column 02, and the connection end of the prefabricated column refers to the lower end face of the prefabricated column upper column 01 and the upper end face of the prefabricated column lower column 02.
The invention provides a construction method of a reinforced concrete precast column, which comprises the following steps:
step S1, obtaining a hoop plate 1, wherein the inner side surface of the hoop plate 1 is provided with a stud 12;
step S2, welding a hoop reinforcement in the hoop plate 1;
step S3, arranging the longitudinal bars 4 and binding stirrups of the longitudinal bars;
step S4, respectively pouring and manufacturing an upper column 01 and a lower column 02 of the prefabricated column by taking the annular reinforcing members in the two hoop plates 1 as boundary supporting molds;
and step S5, welding the hoop plate 1 of the prefabricated column upper column 01 and the hoop plate 1 of the prefabricated column lower column 02.
Wherein, the steps S1-S4 are the production process of the prefabricated column upper column 01 and the prefabricated column lower column 02, and the step S5 is the connection process of the prefabricated column upper column 01 and the prefabricated column lower column 02.
It should be noted that in step S1, the hoop plate 1 is disposed at the connecting end of the prefabricated column, and the shape and size of the hoop plate 1 are determined according to the design size of the prefabricated column and other factors. For a prefabricated column with a rectangular section, the hoop plate 1 can be formed by welding and connecting the head and the tail of a steel plate with a certain thickness or by welding and forming the bent steel plate; for a prefabricated column with a circular cross-section, the hoop plate 1 may be provided as a length of steel pipe. In order to enhance the connection strength of the hoop plate 1 and the concrete part of the prefabricated column, the inner side surface of the hoop plate 1 is provided with studs 12, and preferably, the studs 12 are uniformly distributed along the axial direction of the prefabricated column.
Besides the fact that the hoop plate 1 needs to be arranged at the joint of the upper column 01 of the prefabricated column and the joint of the lower column 01 of the prefabricated column, the hoop plate 1 can be embedded outside the middle section of the upper column 01 of the prefabricated column and/or the middle section of the lower column 02 of the prefabricated column so as to be connected with a beam subsequently.
The position of the embedded hoop plate 1 is determined according to the position of the beam 2 to be connected, and details are not repeated herein.
What needs to be described in step S2 is that the hoop reinforcement is perpendicular to the axial direction of the prefabricated column and is used for enhancing the connection strength of the prefabricated column connection node, and the specific type of the hoop reinforcement can be determined according to the design requirements in the actual building production and is not described herein again.
Preferably, the hoop reinforcement can include hoop reinforcing plate 2 and split anchor 3, and the two all can effectively improve the joint strength of prefabricated post joining end face department.
The circumferential reinforcing plate 2 and the opposite-pulling anchor bars 3 can be used independently, as shown in fig. 1 and 3, or can be used simultaneously. The number of the circumferential reinforcing plates 2 and the number of the opposite-pulling anchor bars 3 are determined according to factors such as the design requirements of the precast columns. In order to further enhance the rigidity of the hoop plate 1, it is preferable that a plurality of vertical stiffeners are provided in the hoop plate 1 of the prefabricated column upper column 01 and the hoop plate 1 of the prefabricated column lower column 02.
Preferably, referring to fig. 4, both ends of the tie anchor bar 3 are plug-welded or screwed to the side surfaces of the hoop plate 1.
It should be noted that in step S3, the longitudinal bars 4 refer to reinforcing bars distributed along the axial direction of the precast column, and are mainly used for bearing axial pressure, tensile force, and bending moment together with concrete, so as to improve the strength of the precast column; and the stirrups are used for binding the longitudinal bars 4 and fixing the positions of the longitudinal bars 4 and bear the horizontal shearing force. The number of the longitudinal bars 4 and the number of the stirrups need to be determined according to the design strength of the prefabricated column, and are not described herein again.
When the length of the longitudinal rib 4 is long, please refer to fig. 1, the longitudinal rib 4 of the prefabricated column upper column 01 can be overlapped with the longitudinal rib 4 of the prefabricated column lower column 02. The connection is simple, the operation is convenient, and the connection strength between the upper column 01 of the prefabricated column and the lower column 02 of the prefabricated column is effectively improved.
Preferably, the hoop reinforcing plate 2 is provided with a longitudinal bar mounting hole for mounting a longitudinal bar 4, and the longitudinal bar 4 is fixed with the hoop reinforcing plate 2 after passing through the longitudinal bar mounting hole.
The longitudinal ribs 4 can be anchored on the circumferential reinforcing plate 2; the longitudinal ribs 4 of the prefabricated column upper column 01 and the longitudinal ribs of the prefabricated column lower column 02 can also extend out of the longitudinal rib mounting holes and are mutually overlapped.
Further, the longitudinal ribs 4 may be welded to the inside of the strap plate 1.
It should be noted that in step S4, after the upper column 01 and the lower column 02 are cast, the precast columns are maintained according to the concrete casting construction specification.
It should be noted that in step S5, the precast column upper column 01 is hoisted to a position right above the precast column lower column 02 by a hoist such as a tower crane before welding, so as to facilitate subsequent welding operation. In order to facilitate the alignment of the prefabricated column upper column 01 and the prefabricated column lower column 02 in the welding process, a lining steel pipe can be arranged between the prefabricated column upper column 01 and the prefabricated column lower column 02. Besides positioning, the lining steel pipe can also enhance the shear strength of the joint between the upper column 01 of the prefabricated column and the lower column 02 of the prefabricated column.
In the embodiment, the pouring of the upper column 01 and the lower column 02 of the prefabricated column can be completed in advance in a factory and the like, and the pouring process is not limited to be completed on a construction site, so that the construction steps of the reinforced concrete prefabricated column are greatly simplified, and the construction efficiency is improved;
the prefabricated column upper column 01 and the prefabricated column lower column 02 are connected through the welding hoop plate 1, the welding surface is the end surface of the hoop plate 1, the welding position is simple in structure and easy to weld, operation is convenient, and meanwhile the connection strength and rigidity of the connection position of the prefabricated column are guaranteed.
When the lower terminal surface of prefabricated post upper prop 01 and the prefabricated post lower prop 02 between the up end of space is great, in order to further strengthen the joint strength between prefabricated post upper prop 01 and the prefabricated post lower prop 02, still include:
step S6, concrete is poured between the annular connecting piece of the prefabricated column upper column 01 and the annular connecting piece of the prefabricated column lower column 02, and preferably, self-compacting concrete or high-strength micro-expansion grouting material is poured between the two.
In order to facilitate the pouring of concrete, it is preferable that the hoop plate 1 of the prefabricated upper column 01 is provided with a grouting opening 11. When concrete is poured, concrete is poured through the grouting opening 11; and after the pouring is finished and the concrete is formed, welding and plugging the grouting opening 11 by using a steel plate.
The size of the grout hole 11 is determined according to factors such as the gap between the prefabricated column upper column 01 and the prefabricated column lower column 02, the size of the hoop plate 1 and the like, and the shape of the grout hole 11 can be set to be any geometric shape.
In addition to the construction method of the reinforced concrete prefabricated column, the invention also provides a reinforced concrete prefabricated column, which comprises a prefabricated column upper column 01 and a prefabricated column lower column 02, wherein hoop plates 1 are sleeved on the lower end of the prefabricated column upper column 01 and the upper end of the prefabricated column lower column 02 in the circumferential direction, and hoop reinforcements are arranged on the lower end surface of the prefabricated column upper column 01 and the upper end surface of the prefabricated column lower column 02 and connected with the corresponding hoop plates 1; and the hoop plate 1 of the prefabricated column upper column 01 is welded and connected with the hoop plate 1 of the prefabricated column lower column 02.
The prefabricated column upper column 01 and the prefabricated column lower column 02 are internally provided with a plurality of longitudinal ribs 4 which are distributed along the axial direction and stirrups for fixing the longitudinal ribs 4.
Factors such as the height of the beam and the position of the annular reinforcing piece determine the height of the end face of the hoop plate 1 protruding out of the prefabricated column, and further determine the gap between the lower end face of the upper column 01 of the prefabricated column and the upper end face of the lower column 02 of the prefabricated column.
The hoop reinforcement comprises a hoop reinforcement plate 2 shown in figure 1 and a split anchor bar 3 shown in figure 3, the hoop reinforcement plate 2 is welded with the hoop plate 1, and the split anchor bar 3 is plug-welded or in threaded connection with the hoop plate 1.
In order to enhance the strength and rigidity of the precast column, preferably, referring to fig. 4 and 7, one end of the hoop plate 1 away from the welded connection surface is provided with a hoop reinforcement, and the specific number of the hoop reinforcements is determined according to the design requirement.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The reinforced concrete prefabricated column and the construction method thereof provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (9)
1. A construction method of a reinforced concrete precast column is characterized by comprising the following steps:
obtaining a hoop plate (1), wherein a stud (12) is arranged on the inner side surface of the hoop plate (1);
welding an annular reinforcement in the hoop plate (1);
arranging longitudinal bars (4) and binding stirrups of the longitudinal bars (4);
respectively pouring and manufacturing an upper prefabricated column (01) and a lower prefabricated column (02) by taking the annular reinforcements in the two hoop plates (1) as boundary supporting molds;
welding the hoop plate (1) of the prefabricated column upper column (01) and the hoop plate (1) of the prefabricated column lower column (02).
2. The reinforced concrete precast column construction method according to claim 1, further comprising:
and concrete is poured between the annular reinforcing piece of the prefabricated column upper column (01) and the annular reinforcing piece of the prefabricated column lower column (02).
3. The reinforced concrete precast column construction method according to claim 2, wherein the hoop plate (1) of the precast column upper column (01) is provided with a grout port (11).
4. The reinforced concrete prefabricated column construction method as claimed in any one of claims 1 to 3, wherein a plurality of vertical stiffeners are provided in each of the hoop plate (1) of the prefabricated column upper column (01) and the hoop plate (1) of the prefabricated column lower column (02).
5. A reinforced concrete precast column construction method according to any one of claims 1 to 3, wherein the circumferential reinforcement includes a circumferential reinforcement plate (2) and a counter pull anchor (3).
6. The reinforced concrete precast column construction method according to claim 5, wherein both ends of the tie anchor bars (3) are plug-welded or screw-connected to the inner side surfaces of the hoop plates (1).
7. The reinforced concrete precast column construction method according to claim 5, wherein the circumferential reinforcement plate (2) is provided with longitudinal bar installation holes for installing the longitudinal bars (4), and the longitudinal bars (4) are connected with the circumferential reinforcement plate (2) after passing through the longitudinal bar installation holes.
8. A reinforced concrete prefabricated column is characterized by comprising a prefabricated column upper column (01) and a prefabricated column lower column (02), wherein hoop plates (1) are sleeved on the lower end of the prefabricated column upper column (01) and the upper end of the prefabricated column lower column (02) in a hoop mode, hoop reinforcements are arranged on the lower end face of the prefabricated column upper column (01) and the upper end face of the prefabricated column lower column (02) in a hoop mode, and the hoop reinforcements are connected with the corresponding hoop plates (1);
the hoop plate (1) of the prefabricated column upper column (01) is connected with the hoop plate (1) of the prefabricated column lower column (02) in a welding mode.
9. Prefabricated column of reinforced concrete according to claim 8, characterized in that the ends of the hoop plate (1) remote from the welded joint faces are provided with said circumferential reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110113773.0A CN112922233A (en) | 2021-01-27 | 2021-01-27 | Reinforced concrete prefabricated column and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110113773.0A CN112922233A (en) | 2021-01-27 | 2021-01-27 | Reinforced concrete prefabricated column and construction method thereof |
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|---|---|---|---|---|
| JP2002317499A (en) * | 2001-04-20 | 2002-10-31 | Ps Corp | Precast concrete column and method of constructing joint thereof |
| CN106381925A (en) * | 2016-10-28 | 2017-02-08 | 湖南大学 | Prefabricated reinforced concrete column and column splice joint with sleeves |
| CN206707124U (en) * | 2017-04-21 | 2017-12-05 | 卢伟煌 | Prefabricated assembling type reinforced concrete component with joint of steel structure |
| CN108149844A (en) * | 2018-01-15 | 2018-06-12 | 福州大学 | A kind of self-positioning assembly concrete-filled steel tube intercolumniation node and its construction method |
| CN110130580A (en) * | 2019-05-20 | 2019-08-16 | 福建工程学院 | Steel tube confinement formula precast concrete column connection structure and construction method |
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2021
- 2021-01-27 CN CN202110113773.0A patent/CN112922233A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002317499A (en) * | 2001-04-20 | 2002-10-31 | Ps Corp | Precast concrete column and method of constructing joint thereof |
| CN106381925A (en) * | 2016-10-28 | 2017-02-08 | 湖南大学 | Prefabricated reinforced concrete column and column splice joint with sleeves |
| CN206707124U (en) * | 2017-04-21 | 2017-12-05 | 卢伟煌 | Prefabricated assembling type reinforced concrete component with joint of steel structure |
| CN108149844A (en) * | 2018-01-15 | 2018-06-12 | 福州大学 | A kind of self-positioning assembly concrete-filled steel tube intercolumniation node and its construction method |
| CN110130580A (en) * | 2019-05-20 | 2019-08-16 | 福建工程学院 | Steel tube confinement formula precast concrete column connection structure and construction method |
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Application publication date: 20210608 |