CN115370008A - Connecting structure of concrete filled steel tubular column and reinforced concrete beam - Google Patents
Connecting structure of concrete filled steel tubular column and reinforced concrete beam Download PDFInfo
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- CN115370008A CN115370008A CN202210923669.2A CN202210923669A CN115370008A CN 115370008 A CN115370008 A CN 115370008A CN 202210923669 A CN202210923669 A CN 202210923669A CN 115370008 A CN115370008 A CN 115370008A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/30—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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/185—Connections not covered by E04B1/21 and E04B1/2403, e.g. connections between structural parts of different material
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Abstract
The invention provides a steel pipe concrete column-reinforced concrete beam connecting structure, which comprises: the steel pipe concrete column is internally provided with a horizontal stiffening rib and a vertical stiffening rib; a steel corbel; the vertical steel plate is welded with the concrete-filled steel tubular column; reinforced concrete roof beam, reinforced concrete roof beam includes that concrete, the first muscle of indulging in upper portion, upper portion second indulge muscle, the first muscle of indulging in lower part, lower part second indulge muscle and lumbar muscle, the first muscle of indulging in upper portion, the first muscle of indulging in lower part is worn to locate respectively two rows of elliptical apertures, the upper portion second indulge the muscle with the last flange overlap joint of steel corbel, the lower part second indulge the muscle with the lower flange overlap joint of steel corbel, the lumbar muscle with vertical steel sheet welded connection. According to the invention, the elliptical holes are formed in the steel pipe concrete column, so that partial longitudinal ribs can be conveniently punched, and the steel brackets are lapped with the longitudinal ribs, so that bending moments at two ends of the steel pipe concrete column can be continuously transmitted, the beam column joint is rigidly connected, and the concept of strong joint and weak member is realized.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a connecting structure of a steel pipe concrete column and a reinforced concrete beam.
Background
Along with the urban land is constantly nervous, the building height is generally higher and higher, in order to control building bottom frame post cross-section, can set up shaped steel in the cross-section usually, forms shaped steel concrete column. With the change of the domestic population structure, in order to solve the problem of labor shortage, the assembly type structure is vigorously pushed in various regions, the mode and the support are avoided as far as possible from the design and the construction, and the section steel concrete column is gradually replaced by a steel pipe concrete column. The floor is still made of reinforced concrete with outstanding economical efficiency and mature technology, and the connection of the steel tube concrete columns and the reinforced concrete beams becomes a design difficulty and is an important pain point which is difficult to ensure the construction quality. Obviously, the difficulty not only occurs in the tower adopting the steel tube concrete column-reinforced concrete floor, but also occurs in the structure that the steel structure is adopted at the upper part and the reinforced concrete structure is adopted in the basement. In order to realize the design concept of strong nodes and weak components, the connection node of the rectangular concrete-filled steel tube column and the reinforced concrete beam needs to be designed in a key mode, force transmission is reasonable, the structure is simple, and construction quality can be controlled.
For the component connection of the steel pipe concrete column and the reinforced concrete beam, a ring beam is adopted in the traditional method, and concrete references are made to steel pipe concrete structure construction (06 SJ 524) and steel pipe concrete structure technical specification (GB 50936-2014), and the like. Therefore, the existing component connection structure of the steel pipe concrete column and the reinforced concrete beam needs to be transformed, and the anti-seismic structure accords with the anti-seismic design concept of strong nodes and weak components, and achieves reasonable force transmission, simple structure, convenient construction and reliable quality.
Therefore, the prior art has defects and needs to be improved and developed.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a connecting structure of a steel pipe concrete column and a reinforced concrete beam, and aims to solve the problem of how to realize simple and convenient construction and controllable quality of the connecting member of the steel pipe concrete column and the reinforced concrete beam on the design concept of realizing strong nodes and weak members.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a concrete filled steel tubular column-reinforced concrete beam connection structure, comprising:
the steel pipe concrete column is provided with two rows of elliptical holes, and horizontal stiffening ribs and vertical stiffening ribs are arranged in the steel pipe concrete column;
the steel corbels are welded with the concrete-filled steel tube columns and arranged between the two rows of the elliptical holes;
the vertical steel plate is welded with the concrete-filled steel tubular column;
reinforced concrete roof beam, reinforced concrete roof beam includes that concrete, the first muscle of indulging in upper portion, upper portion second indulge muscle, the first muscle of indulging in lower part, lower part second indulge muscle and lumbar muscle, the first muscle of indulging in upper portion, the first muscle of indulging in lower part is worn to locate respectively two rows of elliptical apertures, the upper portion second indulge the muscle with the last flange overlap joint of steel bracket, the lower part second indulge the muscle with the lower flange overlap joint of steel bracket, the lumbar muscle with vertical steel sheet welded connection.
The steel core concrete column-reinforced concrete roof beam's connection structure, wherein, the steel corbel is H shaped steel, the steel corbel still including set up in the top flange with the web between the bottom flange.
The steel core concrete column-reinforced concrete roof beam's connection structure, wherein, the major axis footpath direction of elliptical aperture with the axial direction of steel core concrete column is unanimous, the elliptical aperture including one row set up in on the steel core concrete column with the first three elliptical aperture that indulges the position that the muscle corresponds and one row set up in on the steel core concrete column with the first three elliptical aperture that indulges the position that the muscle corresponds in reinforced concrete roof beam lower part.
The steel tube concrete column-reinforced concrete beam connecting structure is characterized in that the total length of the short shaft diameters of the three elliptical holes in each row is less than 15% of the perimeter of the steel tube concrete column.
The connecting structure of the steel tube concrete column and the reinforced concrete beam is characterized in that studs are arranged on the upper flange and the lower flange in the direction deviating from the web and on the two sides of the web. The steel core concrete column-reinforced concrete beam connecting structure is characterized in that structural steel bars are arranged on two sides of a web plate of the steel corbel, and a tie bar is arranged between the waist bar and the structural steel bars of the web plate. The steel pipe concrete column-reinforced concrete beam connecting structure is characterized in that the sections and elevations of the reinforced concrete beams on the two sides of the steel pipe concrete column are the same.
The steel tube concrete column-reinforced concrete beam connecting structure is characterized in that the upper flange and the lower flange are arranged corresponding to the horizontal stiffening rib steel tube concrete column, and the web plate is arranged corresponding to the vertical stiffening rib.
Compared with the prior art, the invention provides a connecting structure of a steel pipe concrete column and a reinforced concrete beam, which is characterized in that an elliptical hole is formed in the steel pipe concrete column to facilitate perforation of a longitudinal rib, so that bending moments at two ends of the steel pipe concrete column can be continuously transmitted, and a 'rib penetrating and bracket lapping' mixed connecting node is formed by combining the longitudinal rib and a steel bracket lapping connection, so that the beam end of the reinforced concrete beam is rigidly connected, the bending moments are reliably transmitted, the node is limited in the beam width range, the structural quality is ensured, the equipment requirements can be considered, and the concept of strong node/weak member is realized; the invention has the advantages that the structural design can relatively reduce the welding workload on site, the construction is simple and convenient, the actual anti-seismic requirement can be met, the projection area of the core area of the connecting node is limited within the section range of a beam column, and the ring beam is not provided, so that the invention is popular among construction units, use units, building and equipment professionals.
Drawings
FIG. 1 is a schematic view of a joint structure of a concrete filled steel tubular column and a reinforced concrete beam provided in the present invention;
FIG. 2 is a schematic cross-sectional view of a beam-end steel corbel in the concrete filled steel tubular column-reinforced concrete beam connection structure provided in the present invention;
FIG. 3 is a schematic diagram of an elliptical hole structure of a concrete filled steel tubular column provided in the present invention;
fig. 4 (a) is a schematic view illustrating a site construction of a concrete filled steel tubular column-reinforced concrete girder connecting structure provided in the present invention; fig. 4 (b) is a schematic diagram of the connection structure of a steel core concrete column and a reinforced concrete beam provided in the present invention, after the reinforcement bars are bound on site;
fig. 5 is a schematic view of a node of a connection structure of a steel core concrete column and a reinforced concrete beam when the reinforced concrete beam is positioned in the middle of the steel core concrete column according to the embodiment of the present invention;
fig. 6 is a schematic diagram of a joint structure between a steel core concrete column and a reinforced concrete beam when the reinforced concrete beam is orthogonally disposed on four sides of the steel core concrete column according to the embodiment of the present invention.
Description of reference numerals:
concrete filled steel tubular column 10, elliptical hole 11, steel corbel 20, top flange 21, lower flange 22, web 23, reinforced concrete beam 30, reinforced concrete beam 31, the first muscle 32 of indulging in upper portion, the muscle 33 is indulged to the upper portion second, and waist muscle 34, the first muscle 35 of indulging in lower part, the muscle 36 is indulged to the lower part second, construction steel bar 37, vertical steel plate 40, peg 50, stirrup 60, lacing wire 70.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The traditional method for connecting the components of the steel pipe concrete column and the reinforced concrete beam is to adopt a ring beam, however, the projection of the method on the plane of a node area is large, the reserved holes of buildings and equipment on a floor slab close to the column and the elevator hole are influenced, the node method is complex in site construction, and the quality is not well controlled.
Based on this, referring to fig. 1 and 2, the present invention provides a concrete filled steel tubular column-reinforced concrete beam coupling structure, comprising:
the steel pipe concrete column comprises a steel pipe concrete column 10, wherein two rows of elliptical holes 11 are reserved on the steel pipe concrete column, and horizontal stiffening ribs and vertical stiffening ribs are arranged in the steel pipe concrete column 10;
the steel corbels 20 are welded with the concrete-filled steel tubular columns 10 and are arranged between the two rows of the elliptical holes 11;
the vertical steel plate 40 is welded with the concrete-filled steel tubular column 10;
reinforced concrete roof beam 30, reinforced concrete roof beam 30 includes that concrete 31, the upper portion is first indulged muscle 32, upper portion second and indulges muscle 33, the first muscle 36 and the muscle 34 of indulging of lower part second longitudinal muscle 35, lower part second, the first muscle 32 of indulging in upper portion the first muscle 35 of indulging in lower part is worn to locate respectively elliptical hole 11, the upper portion second indulge muscle 33 with the 21 overlap joints on the last flange of steel bracket, the lower part second indulge muscle 36 with the lower flange 22 overlap joint of steel bracket 20, the muscle 34 with vertical steel sheet 40 welded connection.
According to the invention, the elliptical holes are formed in the steel pipe concrete column to facilitate the perforation of the longitudinal bars, so that the bending moment of the reinforced concrete beams on two sides of the steel pipe concrete column can be continuously transmitted, and a mixed connection node of 'partial bar penetrating and bracket lapping' is formed by combining the longitudinal bars and the steel brackets in a lap joint manner, so that the beam ends of the reinforced concrete beams are rigidly connected, the reliable transmission of the bending moment is realized, the node is only limited in the beam width range, the structure quality can be ensured, the equipment requirements are met, and the concepts of strong nodes and weak components are realized; the structural design of the invention can relatively reduce the welding workload on site, the construction is simple and convenient, the actual earthquake-resistant requirement can be met, the projection area of the core area of the connecting node is limited within the section range of a beam column, and the ring-free beam is welcomed by the building and equipment industries.
In the connection structure of the steel core concrete column and the reinforced concrete beam, the steel corbel 20 is H-shaped steel, and the steel corbel 20 further comprises a web plate 23 arranged between the upper flange 21 and the lower flange 22.
The steel bracket 20 is made of H-shaped steel, so that the bearing capacity of the end part of the reinforced concrete beam 30 can be effectively enhanced; the steel corbel 20 with adopt full penetration welding between the concrete filled steel tubular column 10, the steel corbel 20 cross-section with horizontal stiffening rib and vertical stiffening rib in the concrete filled steel tubular column 10 correspond respectively, and it is direct to pass power, simple structure. The steel corbel 20 is positioned between the upper first longitudinal rib 32 and the lower first longitudinal rib 35.
Referring to fig. 3, in the reinforced concrete tubular column-reinforced concrete beam connecting structure according to the present invention, the major axis diameter direction of the elliptical holes 11 is the same as the axial direction of the reinforced concrete tubular column 10, and the elliptical holes 11 include a row of three elliptical holes provided at a position on the reinforced concrete tubular column 10 corresponding to the first longitudinal rib 32 at the upper portion of the reinforced concrete beam 30 and a row of three elliptical holes provided at a position on the reinforced concrete tubular column 10 corresponding to the first longitudinal rib 35 at the lower portion of the reinforced concrete beam 30.
As can be seen from fig. 3, the two rows of elliptical holes include a row of long elliptical holes and a row of short elliptical holes, both the long elliptical holes and the short elliptical holes are vertical holes, wherein three rows of steel bars penetrate through the long elliptical holes, the middle row of steel bars is upper longitudinal bars of the frame beam in the other direction, the first row of steel bars and the third row of steel bars are upper first longitudinal bars of the reinforced concrete beam in the figure, and the first longitudinal bars and the middle row of steel bars are steel bars perforated in the vertical direction; two rows of steel bars penetrate through the short elliptical hole and are bottom bars, and the steel bars penetrate through the short elliptical hole; in the actual design, in order to reduce the reinforcing bar radical, the first muscle of indulging in upper portion and the first muscle of indulging in lower part of choosing for use are 32mm thick reinforcing bar, the size of elliptical aperture can carry out corresponding adjustment along with the reinforcing bar size of choosing for use.
In some embodiments, the sum of the lengths of the short axes of the three elliptical holes in each row is less than 15% of the circumference of the steel pipe concrete column, in the actual construction process, the widths of the long elliptical holes can be specifically selected according to the number of the long elliptical holes and the side length of the steel pipe concrete column 10, in this embodiment, 3 long elliptical holes are preferably provided, the sum of the lengths of the projections of the long elliptical holes on the horizontal plane is less than 15% of the circumference of the steel pipe concrete column 10 by controlling the widths of the long elliptical holes, and this limitation can prevent the steel pipe concrete column 10 from being seriously weakened due to the excessively wide elliptical holes, and also does not cause the structural infirm of the building due to the insufficient bearing capacity of the node area of the steel pipe concrete column 10.
In the connection structure of the steel pipe concrete column and the reinforced concrete beam, the upper flange 21 and the lower flange 22 are provided with the studs 50 in the direction departing from the web 23 and on both sides of the web 23, and the studs 50 can better coordinate stress between the steel corbel 20 and concrete, so that the overall stress performance of the reinforced concrete beam 30 is improved.
In the connection structure of the steel pipe concrete column and the reinforced concrete beam, the stirrups 60 are arranged on the outer sides of the steel corbels 20, the stirrups 60 are also arranged in the beam height range which is 1.5 times of the height of the steel corbels 20 except the end parts of the steel corbels 20, the stirrups 60 are arranged according to the requirements of a beam end stirrup encryption area, the shear strength in the section of the reinforced concrete beam 30 can be met by arranging the stirrups 60, the constraint on concrete is enhanced, and the anti-seismic performance of the reinforced concrete beam is improved. The stirrups in the stirrup encryption area at the beam end can enhance the shearing resistance of the beam end and restrain longitudinal steel bars and concrete at the beam end; alternatively, the spacing and diameter of the stirrups 60 within the length of the steel corbel 20 may be such as to meet the relevant requirements of current regulations.
In the connection structure of the steel pipe concrete column and the reinforced concrete beam, the two sides of the web plate 23 of the steel corbel 20 are provided with the constructional steel bars 37, and the tie bars 70 are arranged between the waist bars 34 and the constructional steel bars 37 of the web plate 23, so that the engagement effect of concrete and the steel bars is realized.
In some embodiments, the reinforced concrete beams 30 on both sides of the steel core concrete column 10 have the same cross section and elevation, so that the upper first longitudinal rib 32 and the lower first longitudinal rib 35 penetrate through the steel core concrete column 10, thereby continuously transmitting the bending moment at both ends of the steel core concrete column 10.
In the connection structure of the steel pipe concrete column and the reinforced concrete beam, the upper flange 21 and the lower flange 22 are arranged corresponding to the horizontal stiffening rib, the web plate 22 is arranged corresponding to the vertical stiffening rib, the stiffening rib and the steel pipe concrete column 10 can be connected in a welding mode, and the stiffening rib is arranged to increase the rigidity of a node area and smoothly realize the force transmission.
In some other embodiments, according to actual needs, the reinforced concrete beam may be disposed in the middle of the steel pipe concrete column, or may be disposed orthogonally on four sides of the steel pipe concrete column, and specific connection structure node schematic diagrams may refer to fig. 5 and 6. In order to fix the steel bars in the orthogonal direction and enable the acting forces to form a better net-like action, fixing modules can be additionally arranged on the cross points of the steel bars in the orthogonal direction so as to strengthen the supporting action between the steel bars.
In summary, the present invention provides a connection structure of a steel pipe concrete column and a reinforced concrete beam, which includes: the steel pipe concrete column is provided with two rows of elliptical holes, and horizontal stiffening ribs and vertical stiffening ribs are arranged in the steel pipe concrete column; the steel corbels are welded with the concrete-filled steel tube columns and arranged between the two rows of the elliptical holes; the vertical steel plate is welded with the concrete-filled steel tubular column; reinforced concrete roof beam, reinforced concrete roof beam includes that concrete, the first muscle of indulging in upper portion, upper portion second indulge muscle, the first muscle of indulging in lower part, lower part second indulge muscle and lumbar muscle, the first muscle of indulging in upper portion, the first muscle of indulging in lower part is worn to locate respectively two rows of elliptical apertures, the upper portion second indulge the muscle with the last flange overlap joint of steel bracket, the lower part second indulge the muscle with the lower flange overlap joint of steel bracket, the lumbar muscle with vertical steel sheet welded connection. According to the invention, the elliptical holes are formed in the steel tube concrete column to facilitate perforation of the longitudinal ribs, so that bending moments on two sides of the steel tube concrete column can be continuously transmitted, and a mixed connection node of partial penetrating ribs and bracket lapping is formed by combining the longitudinal ribs and the steel bracket lapping, so that the steel tube concrete column and the reinforced concrete beam are in rigid connection, reliable transmission of the bending moments is ensured, the node is limited in the beam width range, the structural quality can be ensured, the equipment requirements can be considered, and the concepts of strong nodes and weak members are realized; the structural design of the invention can relatively reduce the welding workload on site, the construction is simple and convenient, the actual earthquake-resistant requirement can be met, the projection area of the core area of the connecting node is limited within the section range of the beam column, and the connecting node is free of ring beams and the like, so that the connecting node is popular among construction units, use units, building and equipment professionals.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (9)
1. The utility model provides a connection structure of steel core concrete column-reinforced concrete roof beam which characterized in that includes:
the steel pipe concrete column is reserved with two rows of elliptical holes and internally provided with horizontal stiffening ribs and vertical stiffening ribs;
the steel corbels are welded with the concrete-filled steel tube columns and arranged between the two rows of the elliptical holes;
the vertical steel plate is welded with the concrete-filled steel tubular column;
reinforced concrete roof beam, reinforced concrete roof beam includes that concrete, the first muscle of indulging in upper portion, upper portion second indulge muscle, the first muscle of indulging in lower part, lower part second indulge muscle and lumbar muscle, the first muscle of indulging in upper portion the first muscle of indulging in lower part wears to locate respectively two rows of elliptical holes, the upper portion second indulge the muscle with the last flange overlap joint of steel bracket, the lower part second indulge the muscle with the lower flange overlap joint of steel bracket, the lumbar muscle with vertical steel sheet welded connection.
2. A concrete filled steel tubular column-reinforced concrete beam connection structure as recited in claim 1, wherein said steel bracket is an H-section steel, said steel bracket further comprising a web disposed between said upper flange and said lower flange.
3. A steel core concrete column-reinforced concrete beam connection structure according to claim 1, wherein the major axis diameter direction of the elliptical holes coincides with the axial direction of the steel core concrete column, and the elliptical holes include one row of three elliptical holes provided in the steel core concrete column at a position corresponding to the first longitudinal rib on the upper portion of the reinforced concrete beam and one row of three elliptical holes provided in the steel core concrete column at a position corresponding to the first longitudinal rib on the lower portion of the reinforced concrete beam.
4. A steel core concrete column-reinforced concrete beam connecting structure as recited in claim 3, wherein the sum of the lengths of the short axes of the three elliptical holes in each row is less than 15% of the circumference of the steel core concrete column.
5. A concrete filled steel tubular column-reinforced concrete beam connection according to claim 2, wherein studs are provided in both the upper and lower flanges in a direction away from the web and on both sides of the web.
6. A concrete filled steel tubular column-reinforced concrete beam connection according to claim 1, wherein construction steel bars are provided at both sides of the web of the steel corbel.
7. A steel core concrete column-reinforced concrete beam connection structure as claimed in claim 6, wherein a tie bar is provided between the wale and the construction steel of the web.
8. The concrete-filled steel tubular column-reinforced concrete beam connection structure according to claim 1, wherein the reinforced concrete beams on both sides of the concrete-filled steel tubular column have the same cross-section and elevation.
9. The concrete-filled steel tube column-reinforced concrete beam connection structure according to claim 1, wherein the upper flanges and the lower flanges are disposed corresponding to the horizontal stiffeners, and the web is disposed corresponding to the vertical stiffeners.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210923669.2A CN115370008B (en) | 2022-08-02 | 2022-08-02 | Connection structure of steel pipe concrete column-reinforced concrete beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210923669.2A CN115370008B (en) | 2022-08-02 | 2022-08-02 | Connection structure of steel pipe concrete column-reinforced concrete beam |
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| CN115370008A true CN115370008A (en) | 2022-11-22 |
| CN115370008B CN115370008B (en) | 2023-08-18 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001173097A (en) * | 1999-12-16 | 2001-06-26 | Dai Nippon Construction | Structure of precast composite beam |
| CN109779012A (en) * | 2019-01-31 | 2019-05-21 | 中铁第四勘察设计院集团有限公司 | A kind of reinforced beam and concrete filled steel tube column connected node |
| CN111255098A (en) * | 2020-02-10 | 2020-06-09 | 湖南省西城建设有限公司 | Concrete-filled steel tubular column and cast-in-place reinforced concrete beam joint and construction method thereof |
| CN214996503U (en) * | 2021-04-14 | 2021-12-03 | 中机国际工程设计研究院有限责任公司 | Reinforced concrete beam and concrete filled steel tube column connecting structure |
| CN114427317A (en) * | 2022-01-26 | 2022-05-03 | 福建工程学院 | Side plate type steel pipe concrete special-shaped column and concrete beam connecting structure |
-
2022
- 2022-08-02 CN CN202210923669.2A patent/CN115370008B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001173097A (en) * | 1999-12-16 | 2001-06-26 | Dai Nippon Construction | Structure of precast composite beam |
| CN109779012A (en) * | 2019-01-31 | 2019-05-21 | 中铁第四勘察设计院集团有限公司 | A kind of reinforced beam and concrete filled steel tube column connected node |
| CN111255098A (en) * | 2020-02-10 | 2020-06-09 | 湖南省西城建设有限公司 | Concrete-filled steel tubular column and cast-in-place reinforced concrete beam joint and construction method thereof |
| CN214996503U (en) * | 2021-04-14 | 2021-12-03 | 中机国际工程设计研究院有限责任公司 | Reinforced concrete beam and concrete filled steel tube column connecting structure |
| CN114427317A (en) * | 2022-01-26 | 2022-05-03 | 福建工程学院 | Side plate type steel pipe concrete special-shaped column and concrete beam connecting structure |
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| CN115370008B (en) | 2023-08-18 |
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