CN114135000B - Beam column connecting node of assembled type partially-encased U-shaped steel and construction method thereof - Google Patents
Beam column connecting node of assembled type partially-encased U-shaped steel and construction method thereof Download PDFInfo
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- CN114135000B CN114135000B CN202111130902.3A CN202111130902A CN114135000B CN 114135000 B CN114135000 B CN 114135000B CN 202111130902 A CN202111130902 A CN 202111130902A CN 114135000 B CN114135000 B CN 114135000B
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- concrete
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 126
- 239000010959 steel Substances 0.000 title claims abstract description 126
- 238000010276 construction Methods 0.000 title claims abstract description 18
- 239000004567 concrete Substances 0.000 claims abstract description 37
- 238000003466 welding Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000012946 outsourcing Methods 0.000 claims abstract description 5
- 230000002787 reinforcement Effects 0.000 claims description 20
- 239000011178 precast concrete Substances 0.000 claims description 13
- 210000002435 tendon Anatomy 0.000 claims description 8
- 239000011150 reinforced concrete Substances 0.000 claims description 7
- 238000011065 in-situ storage Methods 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 2
- 238000009957 hemming Methods 0.000 claims description 2
- 238000005266 casting Methods 0.000 claims 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 230000000452 restraining effect Effects 0.000 abstract description 2
- 239000011324 bead Substances 0.000 description 5
- 230000004075 alteration Effects 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
Classifications
-
- 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
- E04B1/30—Structures 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
-
- 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
- E04B1/185—Connections not covered by E04B1/21 and E04B1/2403, e.g. connections between structural parts of different material
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)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention provides a beam column connecting node of an assembled type partially-encased U-shaped steel and a construction method thereof. The beam column connecting node comprises a column, an outsourcing U-shaped steel, a precast beam and concrete poured after a connecting area. The column comprises a hollow steel pipe, a node upper annular plate and a node lower annular plate. And the upper node annular plate and the lower node annular plate are pre-welded at the joint of the upper node of the hollow steel pipe body. The U-shaped steel comprises a U-shaped steel groove and a cover plate. The beam-column connecting node is simple in structure, concrete pouring construction is convenient after the node area, welding workload is reduced on the premise that reliable connection of the node area is guaranteed, steel consumption of a traditional node is reduced, construction process is simplified, and assembly efficiency is greatly improved. The U-shaped steel is partially wrapped outside to replace stirrups, so that the arrangement of the reinforcing steel bars in the node area is simplified, and the method can play a good role in restraining and transmitting shear force for the concrete beam poured after the node area.
Description
Technical Field
The invention relates to the field of bridge structures, in particular to a beam column connecting node of an assembled type local outer-covered U-shaped steel and a construction method thereof.
Background
The concrete filled steel tubular column is used as a typical component in a combined structure, and has the advantages of high bearing capacity, high ductility, no need of templates, convenient construction, assembly construction and the like, and is widely applied to structures such as bridges, large spans, high floors, heavy loads and the like. However, in the current engineering, the connection between the reinforced concrete beam and the steel pipe in the node area is difficult, and the further application and the improvement of the assembly rate of the steel pipe concrete column 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 a beam column connecting node of an assembled type partially-encased U-shaped steel and a construction method thereof, so as to solve the problems in the prior art.
The technical scheme adopted for achieving the purpose of the invention is that the beam column connecting node of the assembled type partially-encased U-shaped steel comprises a column, the encased U-shaped steel, a precast beam and a connecting area, and concrete is poured.
The column comprises a hollow steel pipe, a node upper annular plate and a node lower annular plate. And the upper node annular plate and the lower node annular plate are pre-welded at the joint of the upper node of the hollow steel pipe body.
The U-shaped steel comprises a U-shaped steel groove and a cover plate. The U-shaped steel groove comprises a bottom plate and two webs. The upper end of the web extends beyond the outer curl. The outer hemming is provided with a bolt hole. The web plate is provided with a node upper annular plate accommodating groove. The bottom plate is provided with a node lower annular plate accommodating notch. The upper ring plate of the node is inserted into the accommodating groove of the upper ring plate of the node. The node lower annular plate is embedded into the node lower annular plate accommodating notch. And the U-shaped steel groove is welded with the hollow steel pipe, the node upper annular plate and the node lower annular plate. One end of the precast beam is inserted into the U-shaped steel groove. And pouring concrete after pouring the connecting area in the U-shaped steel groove. And the cover plate is covered above the U-shaped steel groove. The face of apron is provided with the bolt hole that corresponds with the bolt hole of outer turn-up. The cover plate is connected with the outer curled edge through a bolt.
Further, the outsourcing U-shaped steel still includes tank bottom shear connection spare. The tank bottom shear connector is arranged on the upper surface of the bottom plate.
Further, the upper surface of the node lower ring plate is flush with the upper surface of the bottom plate.
Further, the precast beam is a reinforced concrete beam. The precast beam comprises precast concrete, an upper stress rib, a lower stress rib and stirrups. The upper stress bars, the lower stress bars and the stirrups are combined into a reinforcement cage. And the precast concrete is coated with a reinforcement cage. And the reinforcement cage extends out of the precast concrete at one side beam end. The extending end of the reinforcement cage extends into the U-shaped steel groove. The upper stressed tendons of the extending ends of the reinforcement cages are welded on the upper surface of the upper annular plate of the node, and the lower stressed tendons are anchored in the node area and then poured into concrete.
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 is a normal steel plate, a profiled steel plate or a corrugated steel plate.
Further, the column is a concrete filled steel tube 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-situ or prefabricated mode.
The invention also discloses a construction method of the beam column connecting node of the assembled type local outer-wrapping U-shaped steel, which is characterized by comprising the following steps:
1) And positioning and welding the U-shaped steel groove on the outer wall of the column.
2) And (3) inserting one end of the precast beam into the U-shaped steel groove.
3) And pouring concrete after pouring the connection area.
4) And the cover plate is fixedly connected with the outer curled edge through a bolt, so that assembly construction is completed.
The technical effects of the invention are undoubted:
A. the construction is simple, the construction of pouring concrete after the node area is convenient, the welding workload is reduced, the steel consumption of the traditional node is reduced, the construction process is simplified, and the assembly efficiency is greatly improved on the premise of ensuring the reliable connection of the node area;
B. the working mechanism is clear, and upper portion atress reinforcing bar passes through the welding seam and passes through the power, and lower part atress reinforcing bar passes through: after the steel bar is anchored and the joint area is formed, the force is transferred from the concrete to the shear connector at the bottom of the groove to the U-shaped steel groove and the column, so that bending moment can be effectively transferred to the column;
C. the U-shaped steel is partially wrapped outside to replace stirrups, so that the arrangement of the reinforcing steel bars in the node area is simplified, and the method can play a good role in restraining and transmitting shear force for the concrete beam poured after the node area.
Drawings
FIG. 1 is a schematic view of a beam column node structure;
FIG. 2 is a schematic view of a concrete-filled steel tubular column;
FIG. 3 is a schematic view of an outsourced U-beam;
fig. 4 is a schematic view of a reinforced concrete beam;
fig. 5 is a schematic view of a beam-column joint in partial cutaway.
In the figure: column 1, hollow steel pipe 101, node upper ring plate 103, node lower ring plate 104, outsourcing U-shaped steel 2, U-shaped steel groove 201, bottom plate 2011, web 2012, outer curled edge 2013, groove bottom shear connector 202, cover plate 203, node upper ring plate accommodating groove 204, node lower ring plate accommodating notch 205, precast beam 3, precast concrete 301, upper stress rib 302, lower stress rib 303, stirrup 304, and post-pouring concrete 4 in the connection area.
Detailed Description
The present invention is further described below with reference to examples, but it should not be construed that the scope of the above subject matter of the present invention is limited to the following examples. Various substitutions and alterations are made according to the ordinary skill and familiar means of the art without departing from the technical spirit of the invention, and all such substitutions and alterations are intended to be included in the scope of the invention.
Example 1:
referring to fig. 1 and 5, this embodiment provides a beam column connection node of an assembled partially-encased U-shaped steel, which comprises a column 1, an encased U-shaped steel 2, a precast beam 3 and a connection area, and then concrete 4 is poured.
Referring to fig. 2, the column 1 is a concrete filled steel tubular column. The column 1 comprises a hollow steel pipe 101, a node upper annular plate 103 and a node lower annular plate 104. The node upper ring plate 103 and the node lower ring plate 104 are pre-welded at the joint of the upper pipe body and the node 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 by cast-in-situ or prefabrication.
Referring to fig. 3, the U-section steel 2 comprises a U-section steel channel 201, a channel bottom shear connector 202 and a cover plate 203. The U-shaped steel channel 201 comprises a bottom plate 2011 and two webs 2012. The tank bottom shear connector 202 is disposed on the upper plate surface of the bottom plate 2011. The upper end of the web 2012 extends beyond the outer curl 2013. The outer crimp 2013 is provided with a bolt hole. The web 2012 has a node upper ring plate receiving slot 204. The bottom plate 2011 is provided with a node lower ring plate accommodating notch 205. The upper ring plate 103 is inserted into the upper ring plate accommodating groove 204. The lower node ring plate 104 is embedded in the lower node ring plate accommodating 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 pouring the concrete 4 after pouring the connecting area in the U-shaped steel groove 201. The cover plate 203 is arranged above the U-shaped steel groove 201 in a covering mode. The cover plate 203 has bolt holes corresponding to the bolt holes of the outer bead 2013 on the plate surface. The cover 203 is bolted to the outer bead 2013.
Referring to fig. 4, the precast beam 3 is a reinforced concrete beam. The precast beam 3 comprises precast concrete 301, an upper stress rib 302, a lower stress rib 303 and stirrups 304. The upper stress bars 302, the lower stress bars 303 and the stirrups 304 are combined into a reinforcement cage. The precast concrete 301 is coated with a reinforcement cage. The reinforcement cage extends out of the precast concrete 301 at one side beam end. The extending end of the reinforcement cage extends into the U-shaped steel groove 201. The upper stressed tendons 302 of the extending ends of the reinforcement cages are welded on the upper surface of the upper annular plate 103 of the joint through welding seams to transfer force, and the lower stressed tendons 303 are anchored in the joint area and then transfer force in the poured concrete 4.
Example 2:
the beam column connecting node of the assembled type local outer-wrapping U-shaped steel comprises a column 1, outer-wrapping U-shaped steel 2, a precast beam 3 and a connecting area, and concrete 4 is poured.
The column 1 comprises a hollow steel pipe 101, a node upper annular plate 103 and a node lower annular plate 104. The node upper ring plate 103 and the node lower ring plate 104 are pre-welded at the joint of the upper pipe body and the node of the hollow steel pipe 101.
The outer U-shaped steel 2 comprises a U-shaped steel groove 201 and a cover plate 203. The U-shaped steel channel 201 comprises a bottom plate 2011 and two webs 2012. The upper end of the web 2012 extends beyond the outer curl 2013. The outer crimp 2013 is provided with a bolt hole. The web 2012 has a node upper ring plate receiving slot 204. The bottom plate 2011 is provided with a node lower ring plate accommodating notch 205. The upper ring plate 103 is inserted into the upper ring plate accommodating groove 204. The lower node ring plate 104 is embedded in 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. And pouring the concrete 4 after pouring the connecting area in the U-shaped steel groove 201. The cover plate 203 is arranged above the U-shaped steel groove 201 in a covering mode. The cover plate 203 has bolt holes corresponding to the bolt holes of the outer bead 2013 on the plate surface. The cover 203 is bolted to the outer bead 2013.
Example 3:
the main structure of this embodiment is the same as that of embodiment 2, wherein the outer-covered U-shaped steel 2 further comprises a groove bottom shear connector 202. The tank bottom shear connector 202 is disposed on the upper plate surface 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 comprises precast concrete 301, an upper stress rib 302, a lower stress rib 303 and stirrups 304. The upper stress bars 302, the lower stress bars 303 and the stirrups 304 are combined into a reinforcement cage. The precast concrete 301 is coated with a reinforcement cage. The reinforcement cage extends out of the precast concrete 301 at one side beam end. The extending end of the reinforcement cage extends into the U-shaped steel groove 201. The upper stressed tendons 302 of the extending ends of the reinforcement cages are welded on the upper surface of the upper annular plate 103 of the joint through welding seams to transfer force, and the lower stressed tendons 303 are anchored in the joint area and then transfer force in the poured concrete 4.
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 that of embodiment 2, wherein the column 1 is a concrete filled steel tube column. The inner cavity of the hollow steel tube 101 is filled with a concrete column 102. The concrete column 102 is formed by cast-in-situ or prefabrication.
Example 9:
the embodiment provides a construction method of beam column connection nodes of the assembled type partially-encased U-shaped steel, which comprises the following steps of:
1) The U-shaped steel channel 201 is tack welded to the outer wall of the column 1.
2) One end of the precast beam 3 is inserted into the U-shaped steel channel 201.
3) And pouring concrete 4 after pouring the connection area.
4) The cover 203 and the outer bead 2013 are fixedly connected by bolts, and the assembly construction is completed.
Claims (5)
1. The utility model provides a beam column connected node of assembled local outsourcing U shaped steel which characterized in that: the method comprises the steps of casting concrete (4) after a column (1), an outsourcing U-shaped steel (2), a precast beam (3) and a connecting area are included;
the column (1) comprises a hollow steel pipe (101), a node upper annular plate (103) and a node lower annular plate (104); the node upper annular plate (103) and the node lower annular plate (104) are pre-welded at the joint of the upper node of the pipe body of the hollow steel pipe (101);
the 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 groove (201) comprises a bottom plate (2011) and two webs (2012); an upper end of the web (2012) extends beyond an outer curl (2013); the outer hemming (2013) is provided with a bolt hole; the web plate (2012) is provided with a node upper annular plate accommodating groove (204); 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 node lower ring plate (104) is embedded into the node lower ring plate accommodating notch (205); the upper surface of the node lower ring plate (104) is flush with the upper surface of the bottom plate (2011); the tank bottom shear connector (202) is arranged on the upper plate surface of the bottom plate (2011); the U-shaped steel groove (201) is welded with the hollow steel pipe (101), the node upper annular plate (103) and the node lower annular plate (104); one end of the precast beam (3) is inserted into the U-shaped steel groove (201); pouring the concrete (4) after pouring the connecting area in the U-shaped steel groove (201); the cover plate (203) is arranged above the U-shaped steel groove (201); a bolt hole corresponding to the bolt hole of the outer curled edge (2013) is arranged on the plate surface of the cover plate (203); the cover plate (203) is connected with the outer curled edge (2013) through a bolt;
the precast beam (3) is a reinforced concrete beam; the precast beam (3) comprises precast concrete (301), an upper stress rib (302), a lower stress rib (303) and stirrups (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 the precast concrete (301) at one side beam end; the extending end of the reinforcement cage extends into the U-shaped steel groove (201); the upper stressed tendons (302) of the extending ends of the reinforcement cages are welded on the upper surface of the upper annular plate (103) of the node, and the lower stressed tendons (303) are anchored in the node area and then poured into the concrete (4).
2. The beam-column connection node of an assembled partially encased U-section steel of 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.
3. The beam-column connection node of an assembled partially encased U-section steel of claim 1, wherein: the web (2012) is a plain steel plate.
4. The beam-column connection node of an assembled partially encased U-section steel of claim 1, wherein: the column (1) is a steel tube 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-situ or prefabricated mode.
5. The construction method of the beam column connecting node of the assembled type partially-encased U-shaped steel according to claim 1, comprising the following steps:
1) Positioning and welding the U-shaped steel groove (201) on the outer wall of the column (1);
2) One end of the precast beam (3) is inserted into a U-shaped steel groove (201);
3) Pouring concrete (4) after pouring the connection area;
4) And fixedly connecting the cover plate (203) with the outer curled edge (2013) through bolts, and finishing assembly construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111130902.3A CN114135000B (en) | 2021-09-26 | 2021-09-26 | Beam column connecting node of assembled type partially-encased U-shaped steel and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111130902.3A CN114135000B (en) | 2021-09-26 | 2021-09-26 | Beam column connecting node of assembled type partially-encased U-shaped steel and construction method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN114135000A CN114135000A (en) | 2022-03-04 |
| CN114135000B true CN114135000B (en) | 2023-12-22 |
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| CN202111130902.3A Active CN114135000B (en) | 2021-09-26 | 2021-09-26 | Beam column connecting node of assembled type partially-encased U-shaped steel and construction method thereof |
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Families Citing this family (2)
| 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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| 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 |
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2021
- 2021-09-26 CN CN202111130902.3A patent/CN114135000B/en active Active
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| 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 |
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