CN110469054B - A lattice steel-concrete composite column-beam-column node - Google Patents
A lattice steel-concrete composite column-beam-column node Download PDFInfo
- Publication number
- CN110469054B CN110469054B CN201910825542.5A CN201910825542A CN110469054B CN 110469054 B CN110469054 B CN 110469054B CN 201910825542 A CN201910825542 A CN 201910825542A CN 110469054 B CN110469054 B CN 110469054B
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- steel
- node
- reinforced concrete
- column
- lattice
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- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 239000004567 concrete Substances 0.000 title claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 105
- 239000010959 steel Substances 0.000 claims abstract description 105
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 38
- 230000006835 compression Effects 0.000 claims abstract description 7
- 238000007906 compression Methods 0.000 claims abstract description 7
- 239000011372 high-strength concrete Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000010008 shearing Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 10
- 230000002787 reinforcement Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects 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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/32—Columns; Pillars; Struts of metal
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Joining Of Building Structures In Genera (AREA)
- Reinforcement Elements For Buildings (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The utility model provides a lattice formula steel reinforced concrete composite column beam column node, includes lattice formula steel skeleton post, prestressing force coincide roof beam and the node reinforced concrete of taking the steel bracket, its characterized in that lattice formula steel skeleton post includes lattice formula steel skeleton and steel bracket, the steel bracket comprises upper horizontal pull rod, diagonal brace and lower horizontal depression bar, upper horizontal pull rod with lower horizontal depression bar welds between adjacent limb post, adjacent upper horizontal pull rod welds between has the rest pole, prestressing force coincide roof beam tip is shelved on the rest pole, prestressing force coincide Liang Wailou steel strand wires stretch into the core area of node reinforced concrete, lattice formula steel skeleton post, prestressing force coincide roof beam and the node reinforced concrete of taking the steel bracket are integrally cast. The node solves the problem of placing the upper beam when the precast Liang Duoceng is hoisted at the same time, increases the consumption of less steel, and improves the compression resistance and the shearing resistance of the node.
Description
Technical Field
The invention relates to the field of building (construction) construction, in particular to a lattice type steel reinforced concrete combined column beam column node form for solving the problem of simultaneous lifting and placing of a prefabricated Liang Duoceng.
Background
The prefabricated beam hoisting of the assembled large-span multi-layer building engineering usually adopts layered hoisting, the crane use cost is high, the construction progress is slow, the large-tonnage crane is required to be used for the prefabricated beam with larger span because the weight is too large, the multi-layer building engineering prefabricated beam can not be hoisted for construction because the large-tonnage crane cannot be used for operation due to the design bearing capacity of the floor, and therefore, the multi-layer simultaneous hoisting is required, and the construction mode is required to solve the problem of laying the upper layer beam in the construction stage. The lattice type steel reinforced concrete column beam column joint has large bearing capacity of the beam column joint bracket and good mechanical property after pouring.
Disclosure of Invention
The invention aims to solve the technical problems of overcoming the defects of the prior art and providing the lattice type steel reinforced concrete column beam column node with high bearing capacity and good mechanical property after pouring.
The invention provides a lattice type steel reinforced concrete combined column beam column node which comprises a lattice type steel reinforced column with steel corbels, a prestress superposed beam and node reinforced concrete, wherein the lattice type steel reinforced column comprises a lattice type steel skeleton and the steel corbels, each steel corbel consists of an upper horizontal pull rod, an inclined strut and a lower horizontal strut, the upper horizontal pull rod and the lower horizontal strut are welded between adjacent limb columns, a rest rod is welded between the adjacent upper horizontal pull rods, the end part of the prestress superposed beam is rested on the steel corbel rest rod, a prestress superposed Liang Wailou steel strand stretches into a core area of the node reinforced concrete, and the lattice type steel reinforced column with the steel corbels, the prestress superposed beam and the node reinforced concrete are integrally cast.
The lattice type steel reinforced concrete combined column beam column node provided by the invention also has the following auxiliary technical characteristics:
The end part of the prestress superposed beam is separated from the limb column by more than 150 mm.
Part of the cantilever end parts of the upper horizontal pull rods are welded with heightening portal steel frames, the upper parts of the heightening portal steel frames are provided with horizontal drawknot members which are connected with the lattice steel frames, and part of the prestress superposed beam end parts are placed on the heightening portal steel frames.
The web members in the node reinforced concrete are connected in a rear mode by welding or bolts.
The lattice steel skeleton penetrates into the node reinforced concrete for a certain length, web members in the node reinforced concrete are connected in a rear mode, and the connection mode is welding or bolt connection.
The node reinforced concrete comprises steel bars and concrete, wherein the steel bars comprise main bars, stirrups and bracket steel bars, and the main bars are arranged at a certain distance along the outer sides of the lattice type steel skeleton web members.
The lattice type steel skeleton consists of steel pipe limb columns and web members positioned at four corners, and high-strength concrete is poured into the steel pipes.
Compared with the prior art, the lattice type steel reinforced concrete combined column beam column node provided by the invention has the following advantages:
1. when the steel corbel is used for placing the precast beams for multi-layer simultaneous hoisting, the construction progress is fast, and the hoisting cost is low.
2. The steel corbels are used as precast beam supporting structures, are used as compression-resistant and shearing-resistant components after being integrally poured with concrete, and have less steel consumption, but the compression resistance and the shearing resistance are improved.
3. After combination, the node section is enlarged, the design principle of strong nodes and weak components is fully embodied, and the earthquake resistance of the node is improved.
4. The precast beam leaves the limb column for more than 150mm, and can be bent and extend into the node core area when being used as a steel strand of a main rib.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a perspective view of a lattice type steel skeleton column of the present invention.
Fig. 3 is a schematic view of the joint reinforcement bar coupling of the present invention.
Fig. 4 is a schematic elevational view of the present invention.
Fig. 5 is an effect diagram of the invention after pouring the nodes.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Referring to fig. 1 to 5, in an embodiment of a lattice type steel reinforced concrete combined column beam column node provided by the invention, the lattice type steel reinforced concrete combined column comprises a lattice type steel reinforced column 1 with steel corbels 11, a prestressed composite beam 2 and a node reinforced concrete 3, wherein the lattice type steel reinforced column 1 comprises a lattice type steel skeleton 12 and the steel corbels 11, the steel corbels 11 are composed of an upper horizontal pull rod 111, an inclined pull rod 112 and a lower horizontal push rod 113, the upper horizontal pull rod 111 and the lower horizontal push rod 113 are welded between adjacent limb columns, a rest rod 114 is welded between the adjacent upper horizontal pull rods 111, the end part of a main beam 2 of the prestressed composite beam is rested on the rest rod of the steel corbels 11, exposed steel strands 21 of the prestressed composite beam 2 extend into a core area of the node reinforced concrete 3, and the lattice type steel reinforced column 1 with the steel corbels 11, the prestressed composite beam 2 and the node reinforced concrete 3 are integrally cast. When the precast beam is placed by the steel corbels 11 for multi-layer simultaneous hoisting, the construction progress is fast, the hoisting cost is low, the precast beam can be used as a compression-resistant and shearing-resistant component after being integrally cast with concrete, and the steel stranded wires of the prestressed composite beam 2 extend into the core area of the node reinforced concrete 3, so that the overall performance of the beam-column node is improved.
Referring to fig. 1 and 2, in an embodiment of a lattice type steel reinforced concrete combined column beam column node provided by the invention, the end part of the prestressed composite beam 2 is separated from a limb column by more than 150 mm. The distance ensures that the steel strand can be smoothly put into the node when the precast beam is installed, and the construction efficiency is improved.
Referring to fig. 1 and 2, in an embodiment of a lattice steel reinforced concrete composite column beam column node provided by the invention, part of overhanging ends of the upper horizontal pull rods 111 are welded with a heightening portal steel frame 115, a horizontal drawknot 116 is arranged at the upper part of the heightening portal steel frame 115 and is connected with the lattice steel framework 12, and part of ends of the prestressed composite beam 2 rest on the heightening portal steel frame 115. The main beam and the secondary beam of the prestress superposed beam 2 are different in height specification, so that the heightening portal steel frame 115 is arranged for adjusting the rest height of the secondary beams, and the horizontal drawknot piece 115 is beneficial to improving the stability of the heightening portal steel frame 115. Preferably, the upper horizontal tie 111 provided with the elevated portal frame 115 is not provided with the rest bar 114.
Referring to fig. 1 to 4, in an embodiment of a lattice type steel reinforced concrete combined column beam column node provided by the invention, web members 17 in the node reinforced concrete 3 are connected in a rear mode by welding or bolts. The back connection mode is adopted to facilitate the hoisting construction of the prestressed composite beam 2, and the steel stranded wires 21 penetrate into the core area of the node reinforced concrete 3.
Referring to fig. 3 to 5, in an embodiment of a lattice type steel reinforced concrete composite column beam column node according to the present invention, the node reinforced concrete 3 includes a steel bar 32 and a concrete 31, the steel bar includes a main bar 321, a stirrup 322 and a bracket bar 323, and the main bar 321 is disposed at a distance along the outer side of a web member of the lattice type steel skeleton 12. The vertical main reinforcement 321 bears compression resistance and bending resistance, and the stirrups 322 and the bracket reinforcements 323 restrict concrete and simultaneously meet the shearing resistance requirement.
Referring to fig. 2, in an embodiment of a lattice type steel reinforced concrete composite column beam column joint according to the present invention, the lattice type steel skeleton 12 is composed of steel pipe limb columns 121 and web members 122 located at four corners, and high-strength concrete 123 is poured into the steel pipe. The high-strength concrete 123 is poured to further improve the strength and rigidity of the lattice type steel skeleton 12, so that the hoisting bearing capacity requirement can be met under the condition that the column concrete is not poured.
In the present invention, all "a certain distance" means a length necessary for satisfying design requirements, that is, a length necessary for adapting to connection and strength requirements, which is clear to a person skilled in the art, and is set as required.
Claims (5)
1. The lattice steel skeleton comprises a lattice steel skeleton body and steel corbels, the lattice steel skeleton body consists of steel tube limb columns and web members which are positioned at four corners, high-strength concrete is poured into the steel tube limb columns, the steel corbels consist of upper horizontal pull rods, diagonal bracing rods and lower horizontal compression rods, the upper horizontal pull rods and the lower horizontal compression rods are welded between the adjacent steel tube limb columns, a rest rod is welded between the adjacent upper horizontal pull rods, the end part of the prestress superposed beam is arranged on the rest rod, the steel corbels are used for rest of the prestress superposed beam, the steel corbels are used for hoisting multi-layer concrete at the same time, the prestress superposed Liang Wailou steel strands extend into the core area of the node, and the lattice steel skeleton body, the prestress superposed beam, the steel corbels and the node are integrally cast.
2. The lattice steel reinforced concrete composite column beam-column joint of claim 1, wherein the prestressed composite beam end is 150mm away from the steel tube limb column.
3. The lattice type steel reinforced concrete combined column beam column node of claim 1, wherein part of the cantilever end parts of the upper horizontal pull rods are welded with heightened portal steel frames, the upper parts of the heightened portal steel frames are provided with horizontal drawknot members which are connected with the lattice type steel frameworks, and part of the prestressed superposed beam end parts are placed on the heightened portal steel frames.
4. The lattice type steel reinforced concrete combined column beam column node of claim 1, wherein web members in the node reinforced concrete are connected in a rear mode by welding or bolts.
5. The lattice type steel reinforced concrete combined column beam column node of claim 1, wherein the node reinforced concrete comprises steel bars and concrete, the steel bars comprise main bars, stirrups and bracket steel bars, and the main bars are arranged at a certain distance along the outer side of the lattice type steel framework web members.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910825542.5A CN110469054B (en) | 2019-09-03 | 2019-09-03 | A lattice steel-concrete composite column-beam-column node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910825542.5A CN110469054B (en) | 2019-09-03 | 2019-09-03 | A lattice steel-concrete composite column-beam-column node |
Publications (2)
| Publication Number | Publication Date |
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| CN110469054A CN110469054A (en) | 2019-11-19 |
| CN110469054B true CN110469054B (en) | 2025-04-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910825542.5A Active CN110469054B (en) | 2019-09-03 | 2019-09-03 | A lattice steel-concrete composite column-beam-column node |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576645B (en) * | 2020-06-22 | 2024-09-24 | 宁波优造建筑科技有限公司 | Rigid-junction joint of superposed beam and thin-wall steel tube concrete column |
| CN111561060B (en) * | 2020-06-22 | 2024-09-03 | 宁波优造建筑科技有限公司 | Rigid hinged joint node of superposed beam and thin-wall steel pipe concrete column |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704575A (en) * | 2012-05-21 | 2012-10-03 | 天津大学 | Node structure of precast concrete tubular column steel rib concrete beam and construction method of node structure |
| CN203891340U (en) * | 2014-05-14 | 2014-10-22 | 福建工程学院 | Combined lattice type hollow member |
| CN204326258U (en) * | 2014-12-16 | 2015-05-13 | 深圳市典汉濠建筑工程有限公司 | A kind of angle steel lattice column and concrete girder connection linkage |
| CN210597882U (en) * | 2019-09-03 | 2020-05-22 | 宁波优造建筑科技有限公司 | Lattice type steel reinforced concrete combined column beam column node |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0673785A (en) * | 1992-08-25 | 1994-03-15 | Kawasaki Steel Corp | Steel-framed reinforced concrete column and construction method of this column and steel beam |
| CN103088915B (en) * | 2012-08-16 | 2016-06-29 | 杨众 | A kind of cast-in-place post with cap and construction method |
| CN103195172B (en) * | 2013-04-16 | 2015-09-09 | 东南大学 | A kind of prefabrication and assembly construction concrete frame beam-column connection structure |
| CN205530682U (en) * | 2016-04-01 | 2016-08-31 | 上海城建建设实业集团新型建筑材料有限公司 | Precast prestressed frame construction |
| CN206512923U (en) * | 2016-10-21 | 2017-09-22 | 季氏预制装配建筑设计常州有限公司 | Multilayer prefabricated post of the one-shot forming with bracket |
| CN208329154U (en) * | 2018-06-14 | 2019-01-04 | 河北钢铁集团矿业有限公司 | A kind of connecting joint structure of steel column and armored concrete fine strain of millet |
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2019
- 2019-09-03 CN CN201910825542.5A patent/CN110469054B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704575A (en) * | 2012-05-21 | 2012-10-03 | 天津大学 | Node structure of precast concrete tubular column steel rib concrete beam and construction method of node structure |
| CN203891340U (en) * | 2014-05-14 | 2014-10-22 | 福建工程学院 | Combined lattice type hollow member |
| CN204326258U (en) * | 2014-12-16 | 2015-05-13 | 深圳市典汉濠建筑工程有限公司 | A kind of angle steel lattice column and concrete girder connection linkage |
| CN210597882U (en) * | 2019-09-03 | 2020-05-22 | 宁波优造建筑科技有限公司 | Lattice type steel reinforced concrete combined column beam column node |
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| CN110469054A (en) | 2019-11-19 |
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