CN114108809A - Prefabricated reinforced concrete column-steel beam cast steel node - Google Patents
Prefabricated reinforced concrete column-steel beam cast steel node Download PDFInfo
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- CN114108809A CN114108809A CN202111478935.7A CN202111478935A CN114108809A CN 114108809 A CN114108809 A CN 114108809A CN 202111478935 A CN202111478935 A CN 202111478935A CN 114108809 A CN114108809 A CN 114108809A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 122
- 239000010959 steel Substances 0.000 title claims abstract description 122
- 229910001208 Crucible steel Inorganic materials 0.000 title claims abstract description 55
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 40
- 238000010276 construction Methods 0.000 claims abstract description 16
- 238000003466 welding Methods 0.000 claims abstract description 13
- 239000004567 concrete Substances 0.000 claims abstract description 8
- 230000002787 reinforcement Effects 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000000452 restraining effect Effects 0.000 abstract 1
- 238000011161 development Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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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
- E04B1/185—Connections not covered by E04B1/21 and E04B1/2403, e.g. connections between structural parts of different material
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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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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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)
Abstract
本发明公开了一种预制装配式钢筋混凝土柱‑钢梁铸钢节点，包括预制节点域、预制钢筋混凝土柱和预制钢梁，预制节点域包括钢套管，钢套管内焊接有加劲肋板，钢套管的两端焊接有铸钢连接件和连接板，钢套管通过铸钢连接件和连接板与预制短钢梁连接预制节点域和预制钢筋混凝土柱的钢筋笼制作完成后整体浇筑混凝土，然后与预制钢梁连接。本发明中，减小了构件体积，运输方便；预制构件全部在工厂内完成，现场仅需进行螺栓连接，克服现场焊接产生热影响区对节点力学性能的影响；节点域梁柱的定位更加的精确，施工效率高；钢套管对节点域混凝土产生约束效应，提高受力性能；钢套管处包裹混凝土无需设置箍筋，节点区构造简单，施工方便。
The invention discloses a prefabricated reinforced concrete column-steel beam cast steel node, comprising a prefabricated node domain, a prefabricated reinforced concrete column and a prefabricated steel beam. The prefabricated node domain includes a steel sleeve, and the steel sleeve is welded with a stiffening rib plate and a steel sleeve. Both ends of the pipe are welded with cast steel connectors and connecting plates, and the steel casing is connected to the prefabricated short steel beams through the cast steel connectors and connecting plates. Connected with prefabricated steel beams. In the present invention, the volume of the components is reduced, and the transportation is convenient; the prefabricated components are all completed in the factory, and only need to be bolted on site to overcome the influence of the heat-affected zone produced by the on-site welding on the mechanical properties of the nodes; the positioning of the beams and columns in the node area is more convenient Accurate and high construction efficiency; the steel casing has a restraining effect on the concrete in the node area, which improves the mechanical performance; no stirrups are required to wrap the concrete at the steel casing, the structure of the node area is simple, and the construction is convenient.
Description
Technical Field
The invention belongs to the technical field of building structures, and relates to a prefabricated reinforced concrete column-steel beam cast steel node.
Background
In recent years, with the rapid development of economy in China, the living standard of people is increasingly improved, and the requirements on living environment are also increasingly high. In order to respond to the concept of green environmental protection, the method practices a healthy, harmonious and sustainable development strategy, and the country actively develops the assembly type green building and solves the problems of high energy consumption, high pollution, high investment and the like in the building design.
With the continuous development of building structure forms, a plurality of novel combined structure systems appear. As a novel structure system with superior performance, a reinforced concrete column-steel beam (RCS) combined structure is widely concerned in the engineering field. The RCS combined structure fully utilizes and exerts respective advantages of the reinforced concrete column and the steel beam, and is a structural form with low cost and high efficiency. Compared with a pure steel structure, the reinforced concrete column has the advantages of good compression resistance, high rigidity, good durability and fire resistance, and steel saving; compared with a reinforced concrete structure, the steel beam has good bending resistance, light weight and convenient and simple construction, thereby reducing the section size of the member, increasing the effective use space and accelerating the construction progress.
In a frame structure system, beam-column connection nodes are the force transfer hinges between structural members. Under the normal use state, the node should have sufficient intensity and rigidity, transmits beam column internal force, resists the load effect, ensures the structural security, avoids the structure to produce too big internal force and displacement. Under the action of strong earthquake, the node also has certain ductility, and the energy of external loads such as earthquake action and the like is absorbed and dissipated through the deformation of the node, so that the whole structure cannot collapse or overturn.
Existing research is mainly carried out around cast-in-place nodes. The cast-in-place procedure is complicated, the construction period is long, the influence on the surrounding environment is large, and the green construction concept is not met; and the concrete cannot be cured by steam after being poured, is easily affected by seasons and weather, and the construction quality is difficult to ensure. The existing beam-column connection joint is mostly connected in a welding or bolt welding combined mode, and the condition that welding seams are too close to each other or even intersect generally exists, so that a large welding heat affected zone can be generated in a beam-column joint area, and the stress performance of the joint is influenced.
Therefore, there is a need to develop a prefabricated reinforced concrete column-steel beam cast steel node.
Disclosure of Invention
Aiming at the prior art, the invention provides a prefabricated reinforced concrete column-steel beam cast steel node which is simple in structure and convenient to construct. Meanwhile, the welding heat influence is reduced, and the stress is reasonable.
In order to solve the technical problems, the prefabricated assembly type reinforced concrete column-steel beam cast steel node comprises a prefabricated node area, a prefabricated reinforced concrete column and a prefabricated steel beam, wherein the prefabricated reinforced concrete column comprises a column inner longitudinal rib and a column inner stirrup, the prefabricated node area comprises a steel sleeve, stiffening rib plates are welded in the steel sleeve, cast steel connecting pieces are welded at two ends of the steel sleeve, connecting plates are welded on the symmetrical outer side walls of the steel sleeve, a prefabricated short steel beam is connected to the connecting plate at each side, cast steel connecting pieces are welded on the outer edge surface of the steel sleeve, and the cast steel connecting pieces are welded with the prefabricated short steel beams; the column inner longitudinal bars of the prefabricated reinforced concrete column penetrate through the prefabricated node area through the gaps of the stiffening rib plates of the prefabricated node area, concrete is integrally poured after the prefabricated node area and the reinforcement cage of the prefabricated reinforced concrete column are manufactured, and then the prefabricated short steel beams of the prefabricated node area are connected with the prefabricated steel beams.
Further, the prefabricated assembly type reinforced concrete column-steel beam cast steel node of the invention comprises:
in the prefabricated node region, the steel sleeve is a square or rectangular sleeve surrounded by steel plates; the stiffening rib plates are groined rib plates, and the steel sleeves are equal to the stiffening rib plates in height.
The prefabricated short steel beam is an H-shaped steel beam, and a web plate of the prefabricated short steel beam is bolted with a connecting plate on the outer side of the steel sleeve.
The cast steel connecting piece is provided with through holes at two sides along the direction of the precast steel beam, the cast steel connecting piece is sleeved on the steel sleeve, and a welding groove is reserved between the inner wall of the through hole and the cast steel connecting piece; and the flange of the prefabricated short steel beam is welded with the flange plate of the cast steel connecting piece.
The cast steel connecting piece is integrally cast and formed, and the material performance and the processing and manufacturing of the cast steel connecting piece meet the requirements of the standard 'cast steel node technical regulation' of the existing Chinese engineering construction standardization association.
The prefabricated steel beam is an H-shaped steel beam, and a web plate and a flange of the prefabricated steel beam are respectively bolted with a web plate and a flange of a prefabricated short steel beam in the prefabricated node domain through connecting steel plates.
Compared with the prior art, the invention has the beneficial effects that:
the prefabricated reinforced concrete column-steel beam cast steel node is split into a prefabricated node domain, a prefabricated reinforced concrete column and a prefabricated steel beam, so that the volume of the component is reduced, and the transportation is convenient; the prefabricated parts are all finished in a factory, only bolt connection is needed on site, the influence of a heat affected zone generated by site welding on the mechanical property of the node is overcome, and the construction process is simplified; the positioning of the beam column in the node area is more accurate, the installation is rapid, and the construction efficiency is improved; the steel sleeve has a constraint effect on the concrete in the node area, and the stress performance is improved; the steel casing department parcel concrete need not to set up the stirrup, and the node district simple structure, construction convenience.
Drawings
FIG. 1 is a schematic view of a prefabricated reinforced concrete column-steel beam cast steel joint according to the present invention;
FIG. 2 is a schematic view of a prefabricated reinforced concrete column-steel beam cast steel joint area of the present invention;
FIG. 3 is a schematic view of a prefabricated reinforced concrete column-steel beam cast steel joint domain steel casing according to the present invention;
fig. 4 is a schematic diagram of the prefabricated reinforced concrete column-steel beam cast steel joint area cast steel connecting piece.
In the figure:
1-prefabricated node area 2-prefabricated reinforced concrete column 3-prefabricated steel beam 11-steel sleeve
12-stiffening rib plate 13-prefabricated short steel beam 14-cast steel connecting piece 15-connecting plate
16-weld groove
Detailed Description
The invention will be further described with reference to the following figures and specific examples, which are not intended to limit the invention in any way.
The invention provides a prefabricated reinforced concrete column-steel beam cast steel node which comprises a prefabricated node domain 1, prefabricated reinforced concrete columns 2 and prefabricated steel beams 3, and is shown in figure 1.
The prefabricated reinforced concrete column 2 comprises column inner longitudinal bars and column inner stirrups. The prefabricated steel beam 3 is an H-shaped steel beam.
As shown in fig. 2, the prefabricated node domain 1 comprises a steel casing 11, wherein the steel casing 11 is a square or rectangular casing surrounded by steel plates; the steel casing 11 is internally welded with stiffening rib plates 12, the stiffening rib plates 12 are groined rib plates, and in the invention, the stiffening rib plates 12 can penetrate through the steel casing 11 along the height direction and can also be formed by combining a plurality of stiffening rib plates along the height direction. The steel sleeve 11 and the stiffening rib plate 12 are equal in height. Cast steel connectors 14 are welded at two ends of the steel sleeve 11, and connecting plates 15 are welded on the symmetrical outer side walls of the steel sleeve 11, that is, two connecting plates 15 respectively extend out of two sides of the outer surface of the steel sleeve 11, as shown in fig. 3. The connecting plates 15 are reserved with bolt holes, the connecting plates 15 on each side are connected with prefabricated short steel beams 13 through bolts, the prefabricated short steel beams 13 are H-shaped steel beams, the cross sections of the prefabricated short steel beams 13 and the prefabricated steel beams 3 are the same in size, and webs of the prefabricated short steel beams 13 are bolted to the connecting plates 15 on the outer sides of the steel sleeves 11. As shown in fig. 4, the cast steel connecting member 14 is provided with flange plates at both sides along the direction of the precast short steel beam 13, the cast steel connecting member 14 is provided with through holes, and the cast steel connecting member 14 is integrally cast and formed so that the material properties and the processing and manufacturing thereof meet the requirements of the existing standards of the "cast steel joint technical regulation" of the institute of engineering construction standardization of china. The cast steel connecting piece 14 is sleeved on the steel sleeve 11, a welding groove 16 is reserved between the inner wall of the through hole and the cast steel connecting piece 14, the cast steel connecting piece 14 is welded with the outer surface of the steel sleeve 11 through the welding groove 16, and the flange of the prefabricated short steel beam 13 is welded with the flange plate of the cast steel connecting piece 14.
The column inner stirrups of the prefabricated reinforced concrete column 2 are positioned outside the column inner longitudinal reinforcements, and are only arranged in the prefabricated reinforced concrete column 2, and no stirrups are arranged in the steel sleeve 11. The longitudinal bars in the column penetrate through the prefabricated node area through the gap of the prefabricated node area stiffening rib plate 12, and concrete is integrally poured after the prefabricated node area 1 and the reinforcement cage of the prefabricated reinforced concrete column 2 are manufactured. And then the prefabricated short steel beam 13 passing through the prefabricated node domain 1 is connected with the prefabricated steel beam 3, because the prefabricated steel beam 3 and the prefabricated short steel beam 13 are H-shaped steel beams with the same section size, a web plate and a flange of the prefabricated steel beam 3 are respectively bolted with a web plate and a flange of the prefabricated short steel beam 13 in the prefabricated node domain 1 through splicing plates, as shown in fig. 1.
Each part and production and maintenance of the node are completed in a prefabricating factory, and the prefabricated components are only required to be hoisted and assembled on a construction site, so that the construction quality can be ensured, the construction period is greatly shortened, the influence on the surrounding environment is reduced, and the concept of sustainable development is followed. The node areas are connected by cast steel nodes, so that high-temperature welding operation is avoided, the welding amount of the components during intersection is reduced, and the residual stress of the components during intersection is reduced; the section shape of the cast steel node can be reasonably designed according to the conditions of structural appearance, stress and the like, the stress distribution of the node is improved, and the design freedom degree is large; the cast steel node is formed by integral casting, has high node rigidity, better integral performance and simple and convenient processing process, and has advantages in large-scale engineering application.
While the present invention has been described with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are illustrative only and not restrictive, and various modifications which do not depart from the spirit of the present invention and which are intended to be covered by the claims of the present invention may be made by those skilled in the art.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111478935.7A CN114108809A (en) | 2021-12-06 | 2021-12-06 | Prefabricated reinforced concrete column-steel beam cast steel node |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111478935.7A CN114108809A (en) | 2021-12-06 | 2021-12-06 | Prefabricated reinforced concrete column-steel beam cast steel node |
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| Publication Number | Publication Date |
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| CN114108809A true CN114108809A (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111478935.7A Pending CN114108809A (en) | 2021-12-06 | 2021-12-06 | Prefabricated reinforced concrete column-steel beam cast steel node |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112832416A (en) * | 2020-12-28 | 2021-05-25 | 南京彼卡斯建筑科技有限公司 | A prefabricated RCS frame-RECC shear wall hybrid structural system |
| CN115596084A (en) * | 2022-11-09 | 2023-01-13 | 长沙理工大学（Cn） | Novel assembled concrete filled steel tube beam column node |
| CN117248619A (en) * | 2023-10-09 | 2023-12-19 | 中南大学 | Node reinforced type fabricated concrete frame structure system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05331912A (en) * | 1992-06-03 | 1993-12-14 | Mitsui Constr Co Ltd | Mixing structure for concrete column and steel beam |
| CN206859408U (en) * | 2017-06-19 | 2018-01-09 | 重庆大学 | A kind of prefabricated assembled concrete pole steel beam node |
| CN210713245U (en) * | 2019-05-24 | 2020-06-09 | 南昌大学 | A connection mechanism of beam-column joints in RCS composite structure |
| CN112832416A (en) * | 2020-12-28 | 2021-05-25 | 南京彼卡斯建筑科技有限公司 | A prefabricated RCS frame-RECC shear wall hybrid structural system |
| CN214219996U (en) * | 2020-12-28 | 2021-09-17 | 沈阳建筑大学 | A prefabricated H-shaped steel beam-concrete-filled steel tubular column connecting node |
| CN113565202A (en) * | 2021-09-03 | 2021-10-29 | 吉林建筑科技学院 | Novel bolt connection node of assembled concrete column and girder steel |
-
2021
- 2021-12-06 CN CN202111478935.7A patent/CN114108809A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05331912A (en) * | 1992-06-03 | 1993-12-14 | Mitsui Constr Co Ltd | Mixing structure for concrete column and steel beam |
| CN206859408U (en) * | 2017-06-19 | 2018-01-09 | 重庆大学 | A kind of prefabricated assembled concrete pole steel beam node |
| CN210713245U (en) * | 2019-05-24 | 2020-06-09 | 南昌大学 | A connection mechanism of beam-column joints in RCS composite structure |
| CN112832416A (en) * | 2020-12-28 | 2021-05-25 | 南京彼卡斯建筑科技有限公司 | A prefabricated RCS frame-RECC shear wall hybrid structural system |
| CN214219996U (en) * | 2020-12-28 | 2021-09-17 | 沈阳建筑大学 | A prefabricated H-shaped steel beam-concrete-filled steel tubular column connecting node |
| CN113565202A (en) * | 2021-09-03 | 2021-10-29 | 吉林建筑科技学院 | Novel bolt connection node of assembled concrete column and girder steel |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112832416A (en) * | 2020-12-28 | 2021-05-25 | 南京彼卡斯建筑科技有限公司 | A prefabricated RCS frame-RECC shear wall hybrid structural system |
| CN115596084A (en) * | 2022-11-09 | 2023-01-13 | 长沙理工大学（Cn） | Novel assembled concrete filled steel tube beam column node |
| CN117248619A (en) * | 2023-10-09 | 2023-12-19 | 中南大学 | Node reinforced type fabricated concrete frame structure system |
| CN117248619B (en) * | 2023-10-09 | 2024-09-24 | 中南大学 | Node reinforced type fabricated concrete frame structure system |
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Application publication date: 20220301 |
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