CN113585457A - Precast concrete beam column connecting method - Google Patents
Precast concrete beam column connecting method Download PDFInfo
- Publication number
- CN113585457A CN113585457A CN202111051721.1A CN202111051721A CN113585457A CN 113585457 A CN113585457 A CN 113585457A CN 202111051721 A CN202111051721 A CN 202111051721A CN 113585457 A CN113585457 A CN 113585457A
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- Prior art keywords
- precast concrete
- connection
- steel
- column
- node
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 71
- 239000010959 steel Substances 0.000 claims abstract description 71
- 239000004567 concrete Substances 0.000 claims abstract description 17
- 238000001125 extrusion Methods 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims abstract description 4
- 238000005266 casting Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 30
- 230000008569 process Effects 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000002411 adverse Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 210000002435 tendon Anatomy 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
-
- 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
- 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
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4114—Elements with sockets
- E04B1/4121—Elements with sockets with internal threads or non-adjustable captive nuts
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a precast concrete beam column connecting method which comprises the steps of precast concrete column connection, precast concrete connection and fixed angle steel installation. According to the invention, through positioning of the column end embedded steel pipes of the upper column and the lower column and the gusset plate, the connection construction positioning between the columns is convenient, the stability is high, the connection construction is simple through extrusion connection of the steel bar sleeve and sleeve connection, the construction process is simple, the quality detection is convenient, the prefabricated beam end embedded I-steel is connected with the gusset plate of the node core area through the high-strength bolt, the construction process does not need to be supported, the construction is convenient and rapid, the active powder concrete with high strength and high toughness is poured behind the node core area and the beam end to form a whole, the force transmission stress reliability of the connection node is ensured, the complex problems of connection node steel bar crossing and the like are avoided, meanwhile, the adverse effect of the construction environment on the node connection is greatly reduced, and the construction quality is ensured. No need of using a template, and high economic benefit and practicability.
Description
Technical Field
The invention relates to a concrete installation technology, in particular to a precast concrete beam column connecting method.
Background
The connection nodes of the existing studied fabricated structure can be roughly divided into a prestressed splicing node, a post-cast integral type connection node, a bolt connection node and a welding node. The prestressed splicing joint is a mode that a prestressed tendon penetrates out of a reserved hole of a concrete beam column, then is tensioned and anchored at the side edges of a precast beam and the column, and finally the precast beam column is connected together in a mode of pouring mortar into the reserved hole. The post-cast integral connection is a connection mode that after the beam column is installed in place, steel bars in the precast beam column are connected, and then a concrete strip is integrally cast at the beam column connection position by using concrete. The welding connection is realized by welding the connecting pieces embedded in the members. The bolt connection is a mode of pre-burying steel plates and bolt holes in the precast beams and columns and then connecting the beams and the columns by bolts, and the assembled frame can quickly reach certain strength by the mode. The bolt connection has the advantages of strong adaptability, less environmental influence, convenient and fast construction and the like, so the bolt connection is widely applied. In the research of the existing assembled beam-column connection node, bolt connection is the focus of research of many scholars, so various bolt connection forms are endless.
The vertical member has high connecting and positioning requirements, more temporary supports are required to be arranged after connection, and the construction efficiency is not high; the post is indulged the muscle and is adopted grout muffjoint, and construction process is complicated, and construction quality detects inconveniently, and node core area reinforcing bar is more, and the construction is inconvenient, and construction quality should not guarantee, and the muffjoint quality detects inconveniently, and node core area reinforcing bar is crowded, the difficult problem of construction.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a precast concrete beam column connecting method.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention relates to a precast concrete beam column connecting method, which specifically comprises the following steps:
a: connecting the precast concrete columns: inserting the gusset plates into the steel bar extrusion sleeve, inserting the gusset plates into the cross grooves for installation, wherein the gusset plates are mutually vertical, and installing the eight bolts on the prefabricated steel pipe through threads;
b: connecting the precast concrete beams: the connecting cover plate clamps the node plate and the connecting steel plate in the middle, and after bolt holes are aligned, bolts are installed according to threads;
c: and (3) mounting fixed angle steel: the prefabricated concrete column and the prefabricated concrete beam are respectively provided with a fixed angle steel up and down at the included angle, the other side of the prefabricated concrete column is respectively provided with a fixed angle steel at the same height position, and the bolts respectively penetrate through the two corresponding holes and are screwed and installed by nuts.
As a preferred technical scheme of the invention, in the step A, the precast concrete columns are vertically installed, the steel bar extrusion sleeves are positioned at the end parts of the precast concrete columns, the joints of the precast concrete columns are provided with node plates, bolts are installed on the connected precast steel pipes through threaded connection, the precast concrete beams are transversely arranged at the joints of the two precast concrete columns, and the precast concrete columns are provided with separated stirrups.
And C, transversely arranging the precast concrete beam at the connecting point of the two precast concrete columns, arranging I-beams at the end parts of the precast concrete beams, and arranging a connecting cover plate at the connecting part of the I-beams and the gusset plate.
As a preferred technical scheme of the invention, the joint of the precast concrete column is provided with two node plates which are in cross connection, two embedded steel pipes which are sleeved up and down and a steel bar extrusion sleeve.
As a preferred technical scheme of the invention, two connecting cover plates are arranged at the joint of the precast concrete column and the precast concrete beam, and the I-shaped steel and the two cross-shaped connecting node plates are connected through a plurality of bolts and nuts.
As a preferable technical solution of the present invention, the protruding steel plates on the connecting steel plates in the step B are provided with shear pins, and the gusset plates and the precast concrete beam are formed by casting reactive powder concrete having high strength and high toughness.
Compared with the prior art, the invention has the following beneficial effects:
the invention has the advantages that the column ends of the upper and lower columns are embedded with steel pipes and the gusset plates are positioned, the connection construction and positioning between the columns are convenient, the stability is high, the columns are connected, extruded and connected through the steel bar sleeves, the construction process is simple, the quality detection is convenient, the precast beams and the plates adopt the overlapped components, the precast beam ends are embedded with I-shaped steel which is connected with the gusset plates in the node core area through high-strength bolts, the construction process does not need to be supported, the construction is convenient and rapid, the active powder concrete with high strength and high toughness is poured into the node core area and the beam ends to form a whole, the ultrahigh strength and toughness of RPC can be fully utilized, the consumption of the stirrups in the core area is reduced or no stirrups are used, the problems of steel bar crowding and difficult construction in the node core area are solved, the outward movement of the plastic hinge position of the beam ends can be realized by reasonably arranging the additional longitudinal bars which penetrate through the nodes, the beam ends are firstly subjected to bending damage under the earthquake action, the ductility and the energy consumption capability of the structure are improved, the construction period of on-site beam-column joint connection can be effectively shortened, the construction difficulty is reduced, the test piece is convenient to transport, the force transmission stress reliability of the connecting joint is ensured, the complex problems of connecting joint steel bar crossing and the like are avoided, the adverse effect of the construction environment on the joint connection is reduced to a great extent, and the construction quality is ensured. No need of using a template, and high economic benefit and practicability.
Detailed Description
The following description of the preferred embodiments of the present invention is provided for the purpose of illustration and description, and is in no way intended to limit the invention.
Example 1
The invention provides a precast concrete beam column connecting method, which comprises the following specific steps:
a: connecting the precast concrete columns: inserting the gusset plates into the steel pipe grooves, inserting the upper and lower steel pipes according to the grooves, wherein the two gusset plates are vertical to each other, and installing eight bolts according to the threads of the steel pipes;
b: connecting the precast concrete beams: the connecting cover plate clamps the node plate and the connecting steel plate in the middle, and after bolt holes are aligned, bolts are installed according to threads;
c: and (3) mounting fixed angle steel: the prefabricated concrete column and the prefabricated concrete beam are respectively provided with a fixed angle steel up and down at the included angle, the fixed angle steel is respectively arranged at the same height position of the other side of the column, and the bolts respectively penetrate through the two corresponding holes and are screwed and installed by nuts.
Example 2
The invention provides a precast concrete beam column connection method, which comprises the steps that the number of precast concrete columns is two, each precast concrete column is provided with an embedded steel pipe, part of the embedded steel pipe is exposed, the length of the exposed part is the same, the outer diameter of each embedded steel pipe is smaller than that of each precast concrete column and is positioned above each precast concrete column, a connecting steel plate is embedded in each precast concrete beam, part of the connecting steel plate is exposed, and other components and specific connection relations are the same as those in embodiment 1.
Example 3
The invention provides a precast concrete beam column connecting method, wherein an exposed part of an embedded steel pipe in a precast concrete column is longitudinally cut and divided into four parts, a groove is arranged between every two parts, the width of the groove is 1mm larger than the thickness of a node plate, each part of the embedded steel pipe is provided with two threaded holes, the axis of a connecting node plate is provided with a groove, the length of the groove is half of the height of the connecting node plate, the width of the groove is equal to the thickness of the connecting node plate, and other components and specific connection relations are the same as those in embodiment 1 or 2.
Example 4
The invention provides a precast concrete beam column connecting method which is specifically realized according to the following steps:
a: connecting two precast concrete columns, inserting the node plates into grooves of the steel bar extrusion sleeve and the precast steel pipes, inserting the upper precast steel pipes and the lower precast steel pipes according to the grooves, wherein the two node plates are vertical to each other, and installing eight bolts according to the threads of the precast steel pipes;
b: connecting the precast concrete beam, clamping the gusset plate and the connecting steel plate by the connecting cover plate, aligning bolt holes, and installing bolts according to threads;
c: in the first step and the second step, four bolt holes are formed in the connecting steel plate and the gusset plate along the vertical direction, bolts are installed in the bolt holes, the diameters of the bolt holes meet the construction requirements of the bolts, and other components and specific connection relations are the same as those in embodiment 3.
Example 5
The invention provides a precast concrete beam column connecting method, which comprises the following specific steps:
a: connecting the two precast concrete columns, inserting the node plates into grooves of the steel bar extrusion sleeve and the precast steel pipes, inserting the upper precast steel pipes and the lower precast steel pipes according to the grooves, wherein the two node plates are vertical to each other, and installing eight bolts according to the threads of the precast steel pipes;
b: connecting the precast concrete beam, clamping the gusset plate and the connecting steel plate by the connecting cover plate, aligning bolt holes, and installing bolts according to threads;
c: in the first step and the second step, four bolt holes are arranged in the connecting steel plate and the gusset plate along the vertical direction, bolts are installed in the bolt holes, and the diameters of the bolt holes meet the construction requirements of the bolts;
and in the second step, the width of the gap between the end part of the precast concrete beam and the precast concrete column is 50mm, and other components and specific connection relations are the same as those in the embodiment 4.
The invention has the advantages that the column ends of the upper and lower columns are embedded with steel pipes and the gusset plates are positioned, the connection construction and positioning between the columns are convenient, the stability is high, the columns are connected, extruded and connected through the steel bar sleeves, the construction process is simple, the quality detection is convenient, the precast beams and the plates adopt the overlapped components, the precast beam ends are embedded with I-shaped steel which is connected with the gusset plates in the node core area through high-strength bolts, the construction process does not need to be supported, the construction is convenient and rapid, the active powder concrete with high strength and high toughness is poured into the node core area and the beam ends to form a whole, the ultrahigh strength and toughness of RPC can be fully utilized, the consumption of the stirrups in the core area is reduced or no stirrups are used, the problems of steel bar crowding and difficult construction in the node core area are solved, the outward movement of the plastic hinge position of the beam ends can be realized by reasonably arranging the additional longitudinal bars which penetrate through the nodes, the beam ends are firstly subjected to bending damage under the earthquake action, the ductility and the energy consumption capability of the structure are improved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A precast concrete beam column connecting method is characterized by comprising the following steps:
a: connecting the precast concrete columns: inserting the gusset plates into the steel bar extrusion sleeve, inserting the gusset plates into the cross grooves for installation, wherein the gusset plates are mutually vertical, and installing the eight bolts on the prefabricated steel pipe through threads;
b: connecting the precast concrete beams: the connecting cover plate clamps the node plate and the connecting steel plate in the middle, and after bolt holes are aligned, bolts are installed according to threads;
c: and (3) mounting fixed angle steel: the prefabricated concrete column and the prefabricated concrete beam are respectively provided with a fixed angle steel up and down at the included angle, the other side of the prefabricated concrete column is respectively provided with a fixed angle steel at the same height position, and the bolts respectively penetrate through the two corresponding holes and are screwed and installed by nuts.
2. The precast concrete beam column connection method according to claim 1, wherein in the step A, the precast concrete columns are vertically installed, the steel bar extrusion sleeves are positioned at the end parts of the precast concrete columns, the joints of the precast concrete columns are provided with node plates, the bolts are installed on the connected precast steel pipes through threaded connection, the precast concrete beam is transversely arranged at the joints of the two precast concrete columns, and the precast concrete columns are provided with the separated stirrups.
3. The precast concrete beam column connection method according to claim 1, wherein in the step C, the precast concrete beam is transversely arranged at a connection point of two precast concrete columns, an I-shaped steel is arranged at the end part of the precast concrete beam, and a connection cover plate is arranged at the connection part of the I-shaped steel and the node plate.
4. The precast concrete beam column connecting method according to claims 1 and 2, wherein two criss-cross connected node plates, two embedded steel pipes which are sleeved up and down, and a steel bar extrusion sleeve are arranged at the joint of the precast concrete column.
5. A precast concrete beam column connecting method according to claims 1 and 3, wherein two connecting cover plates are provided at the joint of the precast concrete column and the precast concrete beam, and the i-beams and the two cross connection gusset plates are connected by a plurality of bolts and nuts.
6. A precast concrete beam column connecting method according to claim 1, wherein the protruding steel plates on the connecting steel plates in the step B are provided with shear pins, and the gusset plate and the precast concrete beam are formed by casting reactive powder concrete having high strength and high toughness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111051721.1A CN113585457A (en) | 2021-09-08 | 2021-09-08 | Precast concrete beam column connecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111051721.1A CN113585457A (en) | 2021-09-08 | 2021-09-08 | Precast concrete beam column connecting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113585457A true CN113585457A (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111051721.1A Pending CN113585457A (en) | 2021-09-08 | 2021-09-08 | Precast concrete beam column connecting method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032840A (en) * | 2014-07-03 | 2014-09-10 | 河北联合大学 | Prestress assembly type frame joint connecting structure with additionally-arranged steel angles and construction method of prestress assembly type frame joint connecting structure |
| CN206015877U (en) * | 2016-08-18 | 2017-03-15 | 佛山电力设计院有限公司 | Prefabricated assembled concrete frame construction |
| CN107916726A (en) * | 2017-12-21 | 2018-04-17 | 青岛理工大学 | Assembled self-recovery circular concrete-filled steel tube combined node |
| CN110056086A (en) * | 2019-04-16 | 2019-07-26 | 武汉大学 | New type FRP profile quick assembled type beam-column node structure |
| CN112144668A (en) * | 2020-09-29 | 2020-12-29 | 青岛理工大学 | Tenon-type inserted novel assembled steel-concrete combined node |
| JP2021071026A (en) * | 2019-11-01 | 2021-05-06 | 株式会社竹中工務店 | Column-beam joint structure |
-
2021
- 2021-09-08 CN CN202111051721.1A patent/CN113585457A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032840A (en) * | 2014-07-03 | 2014-09-10 | 河北联合大学 | Prestress assembly type frame joint connecting structure with additionally-arranged steel angles and construction method of prestress assembly type frame joint connecting structure |
| CN206015877U (en) * | 2016-08-18 | 2017-03-15 | 佛山电力设计院有限公司 | Prefabricated assembled concrete frame construction |
| CN107916726A (en) * | 2017-12-21 | 2018-04-17 | 青岛理工大学 | Assembled self-recovery circular concrete-filled steel tube combined node |
| CN110056086A (en) * | 2019-04-16 | 2019-07-26 | 武汉大学 | New type FRP profile quick assembled type beam-column node structure |
| JP2021071026A (en) * | 2019-11-01 | 2021-05-06 | 株式会社竹中工務店 | Column-beam joint structure |
| CN112144668A (en) * | 2020-09-29 | 2020-12-29 | 青岛理工大学 | Tenon-type inserted novel assembled steel-concrete combined node |
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Application publication date: 20211102 |
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