CN114135000A - Assembled beam-column connecting joint partially wrapped with U-shaped steel and construction method thereof - Google Patents

Assembled beam-column connecting joint partially wrapped with U-shaped steel and construction method thereof Download PDF

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Publication number
CN114135000A
CN114135000A CN202111130902.3A CN202111130902A CN114135000A CN 114135000 A CN114135000 A CN 114135000A CN 202111130902 A CN202111130902 A CN 202111130902A CN 114135000 A CN114135000 A CN 114135000A
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node
shaped steel
ring plate
column
plate
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CN202111130902.3A
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CN114135000B (en
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王宣鼎
刘界鹏
廖岳
周绪红
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Chongqing University
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Chongqing University
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/30Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts being composed of two or more materials; Composite steel and concrete constructions
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/185Connections not covered by E04B1/21 and E04B1/2403, e.g. connections between structural parts of different material

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

The invention provides an assembled beam-column connecting node partially wrapped with U-shaped steel and a construction method thereof. The beam-column connection node comprises columns, externally-coated U-shaped steel, prefabricated beams and connection areas, and then concrete is poured. The column comprises a hollow steel pipe, a node upper ring plate and a node lower ring plate. And the upper node ring plate and the lower node ring plate are prewelded at the joint of the node on the hollow steel pipe body. The outsourcing U shaped steel includes U shaped steel groove and apron. This beam column connected node simple structure, concreting construction convenience behind the nodal region has reduced welding work volume under the prerequisite of guaranteeing the reliable connection in nodal region, has reduced the steel consumption of traditional node, has simplified the work progress, has improved assembly efficiency greatly. The local outsourcing U shaped steel has replaced the stirrup, simplifies node district reinforcing bar and arranges, can play fine constraint effect and shear force transmission effect to the concrete beam of pouring behind the node district.

Description

Assembled beam-column connecting joint partially wrapped with U-shaped steel and construction method thereof
Technical Field
The invention relates to the field of bridge structures, in particular to an assembled beam-column connecting node partially wrapped with U-shaped steel and a construction method thereof.
Background
The steel pipe concrete column is taken as a typical member in a combined structure, and is widely applied to structures such as bridges, large spans, high-rise buildings, heavy loads and the like according to the advantages of high bearing capacity, high ductility, no need of templates, convenience in construction, capability of being assembled and constructed and the like. However, in the current project, the connection between the reinforced concrete beam and the steel pipe in the node area is difficult, and the further application of the steel pipe concrete column and the improvement of the assembly rate are limited.
Therefore, a new connection form is urgently needed to realize convenient and effective connection of the reinforced concrete beam and the steel pipe.
Disclosure of Invention
The invention aims to provide an assembled beam-column connecting node partially wrapped with U-shaped steel and a construction method thereof, and aims to solve the problems in the prior art.
The technical scheme adopted for achieving the purpose of the invention is that the assembled beam-column connecting node partially wrapped with the U-shaped steel comprises a column, the wrapped U-shaped steel, a precast beam and connecting area post-poured concrete.
The column comprises a hollow steel pipe, a node upper ring plate and a node lower ring plate. And the upper node ring plate and the lower node ring plate are prewelded at the joint of the node on the hollow steel pipe body.
The outsourcing U shaped steel includes U shaped steel groove and apron. The U-shaped steel groove comprises a bottom plate and two webs. The upper end of the web extends out of the outer curl. And the outer curled edge is provided with a bolt hole. And a node upper ring plate accommodating groove is formed in the web. And a node lower ring plate accommodating notch is formed in the bottom plate. The node upper ring plate is inserted into the node upper ring plate accommodating groove. The lower node ring plate is embedded into the lower node ring plate accommodating notch. And the U-shaped steel groove is welded with the hollow steel pipe, the node upper ring plate and the node lower ring plate. One end of the precast beam is inserted in the U-shaped steel groove. And pouring concrete after the connecting area is poured in the U-shaped steel groove. The cover plate is covered above the U-shaped steel groove. And the surface of the cover plate is provided with bolt holes corresponding to the bolt holes of the outer turned edges. The cover plate is connected with the outer curled edge through a bolt.
Further, the outsourcing U shaped steel still includes tank bottom shear force connecting piece. The groove bottom shear connector is arranged on the upper plate surface of the bottom plate.
Further, the upper surface of node lower ring board is flush with the upper surface of bottom plate.
Further, the precast beam is a reinforced concrete beam. The precast beam comprises precast concrete, an upper stress bar, a lower stress bar and a stirrup. And the upper stress rib, the lower stress rib and the stirrup are combined to form a reinforcement cage. The precast concrete coats the reinforcement cage. The reinforcement cage extends out of the precast concrete at the beam end on one side. And the extending end of the reinforcement cage extends into the U-shaped steel groove. And the upper stress rib of the extending end of the reinforcement cage is welded on the upper surface of the node upper ring plate, and the lower stress rib is anchored in the concrete poured behind the node area.
Further, the column is a steel pipe column. The hollow steel pipe is a round steel pipe, a rectangular steel pipe or a special-shaped steel pipe.
Further, the web plate is a common steel plate, a profiled steel plate or a corrugated steel plate.
Further, the column is a steel pipe concrete column. The hollow steel pipe is a round steel pipe, a rectangular steel pipe or a special-shaped steel pipe. And a concrete column is poured into the inner cavity of the hollow steel tube. The concrete column is formed in a cast-in-place or prefabricated mode.
The invention also discloses a construction method of the assembled beam-column connecting joint partially wrapped with the U-shaped steel, which is characterized by comprising the following steps of:
1) and welding the U-shaped steel groove on the outer wall of the column in a positioning manner.
2) And inserting one end of the precast beam into the U-shaped steel groove.
3) And pouring concrete after the connecting area is poured.
4) And fixedly connecting the cover plate with the outer curled edge through a bolt to finish assembly construction.
The technical effects of the invention are undoubted:
A. the structure is simple, the construction of pouring concrete behind the node area is convenient, the welding workload is reduced on the premise of ensuring the reliable connection of the node area, the steel consumption of the traditional node is reduced, the construction process is simplified, and the assembly efficiency is greatly improved;
B. the mechanism of operation is clear and definite, and upper portion atress reinforcing bar passes through the welding seam and passes through, and lower part atress reinforcing bar passes through: the steel bar is anchored, concrete is poured behind the node area, a groove bottom shear connector, a U-shaped steel groove and a column transmit force, and bending moment can be effectively transmitted to the column;
C. the local outsourcing U shaped steel has replaced the stirrup, simplifies node district reinforcing bar and arranges, can play fine constraint effect and shear force transmission effect to the concrete beam of pouring behind the node district.
Drawings
FIG. 1 is a schematic structural view of a beam-column joint;
FIG. 2 is a schematic view of a concrete filled steel tubular column;
FIG. 3 is a schematic view of wrapping U-shaped steel;
FIG. 4 is a schematic view of a reinforced concrete beam;
fig. 5 is a schematic view of a beam column node partially cut away.
In the figure: the prefabricated steel column comprises a column 1, a hollow steel pipe 101, an upper node ring plate 103, a lower node ring plate 104, an outer U-shaped steel 2, a U-shaped steel groove 201, a bottom plate 2011, a web 2012, an outer flange 2013, a groove bottom shear connector 202, a cover plate 203, an upper node ring plate accommodating groove 204, a lower node ring plate accommodating notch 205, a prefabricated beam 3, precast concrete 301, an upper stress rib 302, a lower stress rib 303, a stirrup 304 and connecting area post-pouring concrete 4.
Detailed Description
The present invention is further illustrated by the following examples, but it should not be construed that the scope of the above-described subject matter is limited to the following examples. Various substitutions and alterations can be made without departing from the technical idea of the invention and the scope of the invention is covered by the present invention according to the common technical knowledge and the conventional means in the field.
Example 1:
referring to fig. 1 and 5, the present embodiment provides a beam-column connection node of an assembled partially-wrapped U-shaped steel, which includes a column 1, a wrapped U-shaped steel 2, a precast beam 3, and a connection area post-cast concrete 4.
Referring to fig. 2, the column 1 is a steel pipe concrete column. The column 1 comprises a hollow steel pipe 101, a node upper ring plate 103 and a node lower ring plate 104. And the node upper ring plate 103 and the node lower ring plate 104 are pre-welded at the joint of the node on the pipe body of the hollow steel pipe 101. The inner cavity of the hollow steel tube 101 is filled with a concrete column 102. The concrete column 102 is formed in a cast-in-place or prefabricated manner.
Referring to fig. 3, the outsourcing U-shaped steel 2 comprises a U-shaped steel groove 201, a groove bottom shear connector 202 and a cover plate 203. The U-shaped steel trough 201 includes a bottom plate 2011 and two webs 2012. The channel bottom shear connection 202 is disposed on the upper deck of the bottom plate 2011. The upper end of the web 2012 extends beyond an out curl 2013. The outer turned edge 2013 is provided with a bolt hole. The web 2012 is provided with a node upper ring plate accommodating groove 204. The bottom plate 2011 is provided with a node lower ring plate receiving notch 205. The node upper ring plate 103 is inserted into the node upper ring plate receiving groove 204. The lower node ring plate 104 is inserted into the lower node ring plate receiving notch 205. The upper surface of the node lower ring plate 104 is flush with the upper surface of the bottom plate 2011. The U-shaped steel groove 201 is welded with the hollow steel pipe 101, the node upper ring plate 103 and the node lower ring plate 104. One end of the precast beam 3 is inserted into the U-shaped steel groove 201. And concrete 4 is poured after the connecting area is poured in the U-shaped steel groove 201. The cover plate 203 is covered above the U-shaped steel groove 201. And the plate surface of the cover plate 203 is provided with bolt holes corresponding to the bolt holes of the outer curled edges 2013. The cover plate 203 is connected with the outer flange 2013 through bolts.
Referring to fig. 4, the precast beam 3 is a reinforced concrete beam. The precast beam 3 includes precast concrete 301, an upper stress beam 302, a lower stress beam 303, and a stirrup 304. The upper stress rib 302, the lower stress rib 303 and the stirrup 304 are combined into a reinforcement cage. The precast concrete 301 covers the reinforcement cage. The reinforcement cage extends out of precast concrete 301 at one side beam end. The extending end of the reinforcement cage extends into the U-shaped steel groove 201. And an upper stress rib 302 at the extending end of the reinforcement cage is welded on the upper surface of the node upper ring plate 103 through a welding seam to transfer force, and a lower stress rib 303 is anchored in the node area and then poured into concrete 4 to transfer force.
Example 2:
this embodiment is a beam column connected node of local outsourcing U shaped steel of assembled, concreting 4 behind post 1, outsourcing U shaped steel 2, precast beam 3 and the joining region.
The column 1 comprises a hollow steel pipe 101, a node upper ring plate 103 and a node lower ring plate 104. And the node upper ring plate 103 and the node lower ring plate 104 are pre-welded at the joint of the node on the pipe body of the hollow steel pipe 101.
The outsourcing U-shaped steel 2 comprises a U-shaped steel groove 201 and a cover plate 203. The U-shaped steel trough 201 includes a bottom plate 2011 and two webs 2012. The upper end of the web 2012 extends beyond an out curl 2013. The outer turned edge 2013 is provided with a bolt hole. The web 2012 is provided with a node upper ring plate accommodating groove 204. The bottom plate 2011 is provided with a node lower ring plate receiving notch 205. The node upper ring plate 103 is inserted into the node upper ring plate receiving groove 204. The lower node ring plate 104 is inserted into the lower node ring plate receiving notch 205. The U-shaped steel groove 201 is welded with the hollow steel pipe 101, the node upper ring plate 103 and the node lower ring plate 104. One end of the precast beam 3 is inserted into the U-shaped steel groove 201. And concrete 4 is poured after the connecting area is poured in the U-shaped steel groove 201. The cover plate 203 is covered above the U-shaped steel groove 201. And the plate surface of the cover plate 203 is provided with bolt holes corresponding to the bolt holes of the outer curled edges 2013. The cover plate 203 is connected with the outer flange 2013 through bolts.
Example 3:
the main structure of this embodiment is the same as embodiment 2, wherein the outsourcing U-shaped steel 2 further includes a groove bottom shear connector 202. The channel bottom shear connection 202 is disposed on the upper deck of the bottom plate 2011.
Example 4:
the main structure of this embodiment is the same as that of embodiment 2, wherein the upper surface of the node lower ring plate 104 is flush with the upper surface of the bottom plate 2011.
Example 5:
the main structure of this embodiment is the same as that of embodiment 2, wherein the precast beam 3 is a reinforced concrete beam. The precast beam 3 includes precast concrete 301, an upper stress beam 302, a lower stress beam 303, and a stirrup 304. The upper stress rib 302, the lower stress rib 303 and the stirrup 304 are combined into a reinforcement cage. The precast concrete 301 covers the reinforcement cage. The reinforcement cage extends out of precast concrete 301 at one side beam end. The extending end of the reinforcement cage extends into the U-shaped steel groove 201. And an upper stress rib 302 at the extending end of the reinforcement cage is welded on the upper surface of the node upper ring plate 103 through a welding seam to transfer force, and a lower stress rib 303 is anchored in the node area and then poured into concrete 4 to transfer force.
Example 6:
the main structure of this embodiment is the same as that of embodiment 2, wherein the column 1 is a steel pipe column. The hollow steel pipe 101 is a round steel pipe, a rectangular steel pipe or a special-shaped steel pipe.
Example 7:
the main structure of this embodiment is the same as that of embodiment 2, wherein the web 2012 is a plain steel plate, a profiled steel plate or a corrugated steel plate.
Example 8:
the main structure of this embodiment is the same as embodiment 2, wherein the column 1 is a steel pipe concrete column. The inner cavity of the hollow steel tube 101 is filled with a concrete column 102. The concrete column 102 is formed in a cast-in-place or prefabricated manner.
Example 9:
the embodiment provides a construction method of a beam column connection node of an assembly type partially-wrapped U-shaped steel according to any one of embodiments 1 to 8, which includes the following steps:
1) the U-shaped steel groove 201 is positioned and welded on the outer wall of the column 1.
2) One end of the precast beam 3 is inserted into the U-shaped steel groove 201.
3) And pouring concrete 4 after the connecting area is poured.
4) And fixedly connecting the cover plate 203 with the outer curled edge 2013 through bolts to finish assembly construction.

Claims (8)

1. The utility model provides a beam column connected node of local outsourcing U shaped steel of assembled which characterized in that: the prefabricated beam comprises a column (1), an externally-coated U-shaped steel (2), a prefabricated beam (3) and connection area rear pouring concrete (4);
the column (1) comprises a hollow steel pipe (101), a node upper ring plate (103) and a node lower ring plate (104); the node upper ring plate (103) and the node lower ring plate (104) are pre-welded at the joint of the node on the pipe body of the hollow steel pipe (101);
the outsourcing U-shaped steel (2) comprises a U-shaped steel groove (201) and a cover plate (203); the U-shaped steel groove (201) comprises a bottom plate (2011) and two webs (2012); the upper end of the web (2012) extends out of the out-turned bead (2013); the outer turned edge (2013) is provided with a bolt hole; a node upper ring plate accommodating groove (204) is formed in the web plate (2012); a node lower ring plate accommodating notch (205) is formed in the bottom plate (2011); the node upper ring plate (103) is inserted into the node upper ring plate accommodating groove (204); the lower node ring plate (104) is embedded into the lower node ring plate accommodating notch (205); the U-shaped steel groove (201) is welded with the hollow steel pipe (101), the node upper ring plate (103) and the node lower ring plate (104); one end of the precast beam (3) is inserted into the U-shaped steel groove (201); pouring concrete (4) after the connecting area is poured in the U-shaped steel groove (201); the cover plate (203) is covered above the U-shaped steel groove (201); the plate surface of the cover plate (203) is provided with a bolt hole corresponding to the bolt hole of the outer turned edge (2013); the cover plate (203) is connected with the outer curled edge (2013) through bolts.
2. The assembled beam column connection node partially wrapped with U-shaped steel according to claim 1, wherein: the outsourcing U-shaped steel (2) also comprises a groove bottom shear connector (202); the groove bottom shear connector (202) is arranged on the upper plate surface of the bottom plate (2011).
3. The assembled beam column connection node partially wrapped with U-shaped steel according to claim 1, wherein: the upper surface of the node lower ring plate (104) is flush with the upper surface of the base plate (2011).
4. The assembled beam column connection node partially wrapped with U-shaped steel according to claim 1, wherein: the precast beam (3) is a reinforced concrete beam; the precast beam (3) comprises precast concrete (301), an upper stress bar (302), a lower stress bar (303) and a stirrup (304); the upper stress rib (302), the lower stress rib (303) and the stirrup (304) are combined into a reinforcement cage; the precast concrete (301) is coated with a reinforcement cage; the reinforcement cage extends out of precast concrete (301) at the beam end on one side; the extending end of the reinforcement cage extends into the U-shaped steel groove (201); and an upper stress rib (302) at the extending end of the reinforcement cage is welded on the upper surface of the node upper ring plate (103), and a lower stress rib (303) is anchored in the cast concrete (4) behind the node area.
5. The assembled beam column connection node partially wrapped with U-shaped steel according to claim 1, wherein: the column (1) is a steel pipe column; the hollow steel pipe (101) is a round steel pipe, a rectangular steel pipe or a special-shaped steel pipe.
6. The assembled beam column connection node partially wrapped with U-shaped steel according to claim 1, wherein: the web (2012) is a common steel plate, a profiled steel plate or a corrugated steel plate.
7. The assembled beam column connection node partially wrapped with U-shaped steel according to claim 1, wherein: the column (1) is a steel pipe concrete column; the hollow steel pipe (101) is a round steel pipe, a rectangular steel pipe or a special-shaped steel pipe; a concrete column (102) is poured into the inner cavity of the hollow steel tube (101); the concrete column (102) is formed in a cast-in-place or prefabricated mode.
8. The construction method of the assembled beam column connection node partially wrapped with the U-shaped steel according to claim 1, comprising the steps of:
1) welding the U-shaped steel groove (201) on the outer wall of the column (1) in a positioning manner;
2) inserting one end of the precast beam (3) into the U-shaped steel groove (201);
3) pouring concrete (4) after the connecting area is poured;
4) and fixedly connecting the cover plate (203) with the outer curled edge (2013) through bolts to finish assembly construction.
CN202111130902.3A 2021-09-26 2021-09-26 Beam column connecting node of assembled type partially-encased U-shaped steel and construction method thereof Active CN114135000B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115110825A (en) * 2022-04-20 2022-09-27 重庆大学 Detachable prefabricated reinforced concrete beam-steel column connecting node and repairing method thereof
CN115233813A (en) * 2022-07-12 2022-10-25 中冶赛迪工程技术股份有限公司 Beam with clamping connection plate

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Publication number Priority date Publication date Assignee Title
CN206693403U (en) * 2017-04-14 2017-12-01 薛万里 A kind of steel core concrete column and connected mode
CN108532751A (en) * 2018-05-29 2018-09-14 福州大学 Assembly concrete bean column node and construction method
CN108867889A (en) * 2018-07-04 2018-11-23 重庆大学 A kind of prefabricated reinforced concrete composite beam and steel pipe column connected node and its construction method
CN110397170A (en) * 2019-06-13 2019-11-01 广东省建筑设计研究院 Steel core concrete column-precast concrete composite beam assembled architecture connecting node
US20200141110A1 (en) * 2017-06-22 2020-05-07 China State Construction Engineering Cororation Limited Prestressed assembled concrete frame-joint connecting structure and constructing method thereof
CN113089825A (en) * 2021-04-19 2021-07-09 重庆恒昇大业建筑科技集团有限公司 Beam-column mixed frame node, and preparation method and construction method of precast concrete beam

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206693403U (en) * 2017-04-14 2017-12-01 薛万里 A kind of steel core concrete column and connected mode
US20200141110A1 (en) * 2017-06-22 2020-05-07 China State Construction Engineering Cororation Limited Prestressed assembled concrete frame-joint connecting structure and constructing method thereof
CN108532751A (en) * 2018-05-29 2018-09-14 福州大学 Assembly concrete bean column node and construction method
CN108867889A (en) * 2018-07-04 2018-11-23 重庆大学 A kind of prefabricated reinforced concrete composite beam and steel pipe column connected node and its construction method
CN110397170A (en) * 2019-06-13 2019-11-01 广东省建筑设计研究院 Steel core concrete column-precast concrete composite beam assembled architecture connecting node
CN113089825A (en) * 2021-04-19 2021-07-09 重庆恒昇大业建筑科技集团有限公司 Beam-column mixed frame node, and preparation method and construction method of precast concrete beam

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115110825A (en) * 2022-04-20 2022-09-27 重庆大学 Detachable prefabricated reinforced concrete beam-steel column connecting node and repairing method thereof
CN115233813A (en) * 2022-07-12 2022-10-25 中冶赛迪工程技术股份有限公司 Beam with clamping connection plate

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