CN113931322A - Connecting structure and method for circular steel tube concrete section steel column and reinforced concrete beam - Google Patents
Connecting structure and method for circular steel tube concrete section steel column and reinforced concrete beam Download PDFInfo
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- CN113931322A CN113931322A CN202111091340.6A CN202111091340A CN113931322A CN 113931322 A CN113931322 A CN 113931322A CN 202111091340 A CN202111091340 A CN 202111091340A CN 113931322 A CN113931322 A CN 113931322A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 243
- 239000010959 steel Substances 0.000 title claims abstract description 243
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 72
- 239000004567 concrete Substances 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000002787 reinforcement Effects 0.000 claims abstract description 66
- 210000003205 muscle Anatomy 0.000 claims abstract description 15
- 210000003734 kidney Anatomy 0.000 abstract 2
- 230000003014 reinforcing effect Effects 0.000 description 15
- 238000010276 construction Methods 0.000 description 12
- 238000003466 welding Methods 0.000 description 8
- 238000005452 bending Methods 0.000 description 3
- 244000309464 bull Species 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000005266 casting Methods 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
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Classifications
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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
- E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
- E04B1/5837—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially circular form
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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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- 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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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/20—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/36—Columns; Pillars; Struts of materials not covered by groups E04C3/32 or E04C3/34; of a combination of two or more materials
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/18—Spacers of metal or substantially of metal
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- 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)
Abstract
The application discloses connection structure and method of round steel tube concrete shaped steel post and reinforced concrete roof beam, connection structure includes round steel tube concrete shaped steel post (10), reinforced concrete roof beam (20) and steel ox leg portion (30), round steel tube concrete shaped steel post includes circular steel tube (11), the reinforced concrete roof beam includes longitudinal reinforcement (21) on the roof beam end, longitudinal reinforcement (22) and roof beam end kidney muscle (23) under the roof beam end, be connected with steel ox leg portion on the circular steel tube, longitudinal reinforcement on the roof beam end, longitudinal reinforcement and roof beam end kidney muscle are connected respectively in steel ox leg portion under the roof beam end. In this application, longitudinal reinforcement, beam-ends longitudinal reinforcement and beam-ends lumbar muscle pass through steel corbel portion to be connected in the circular steel tube under longitudinal reinforcement, the beam-ends on the beam-ends of reinforced concrete roof beam, need not to pass the circular steel tube and form the connection, are convenient for construct and can ensure required bearing capacity.
Description
Technical Field
The application relates to the field of buildings, in particular to a connecting structure and a connecting method of a circular steel tube concrete section steel column and a reinforced concrete beam.
Background
The circular steel tube concrete type steel column has the advantages of high bearing capacity, better earthquake resistance and fire resistance and the like, and is widely applied to high-rise and complex structure engineering. In the prior art, the mode that passes round steel tube concrete shaped steel post is usually adopted to form the connected node of round steel tube concrete shaped steel post and reinforced concrete roof beam, but this one side leads to the node structure complicated, the construction degree of difficulty is great, on the other hand influences its bearing capacity owing to pass round steel tube concrete shaped steel post.
Therefore, how to conveniently connect the circular concrete filled steel tubular section steel column and the reinforced concrete beam and ensure the bearing capacity of the circular concrete filled steel tubular section steel column becomes the technical problem to be solved in the field.
Disclosure of Invention
In view of this, the present application provides a connection structure of a circular steel tube concrete section steel column and a reinforced concrete beam, so as to ensure a required bearing capacity while facilitating connection.
According to the application, a connection structure of circular steel tube concrete shaped steel post and reinforced concrete roof beam is proposed, wherein, connection structure includes circular steel tube concrete shaped steel post, reinforced concrete roof beam and steel ox shank, circular steel tube concrete shaped steel post includes the circular steel tube, the reinforced concrete roof beam includes longitudinal reinforcement, longitudinal reinforcement and beam-ends waist muscle under the beam-ends on the beam-ends, be connected with on the circular steel tube steel ox shank, longitudinal reinforcement and beam-ends waist muscle connect respectively in steel ox shank under longitudinal reinforcement, the beam-ends on the beam-ends.
Optionally, the steel corbel portion including connect in the reinforcing bar of circular steel tube and connect in the reinforcing bar with the connecting plate of circular steel tube, the beam-ends is gone up longitudinal reinforcement, beam-ends down longitudinal reinforcement and beam-ends lumbar muscle connect respectively in the connecting plate.
Optionally, the circular steel tube concrete section steel column includes a structural layer longitudinal rib and a stirrup connected to the periphery of the circular steel tube, the structural layer longitudinal rib is connected to the connecting plate through a sleeve, and the connecting plate is provided with a hole allowing the stirrup to pass through.
Optionally, the reinforced concrete beam includes double rows of longitudinal reinforcement on the beam-ends and double rows of longitudinal reinforcement under the beam-ends.
Optionally, the reinforced concrete roof beam includes the first row longitudinal reinforcement and second row are held to the roof beam the last longitudinal reinforcement of roof beam end just the second row includes more than two longitudinal reinforcement is held to the roof beam, the reinforcing bar forms cantilever structure, the extension length of reinforcing bar is 1/4 to 1/3 of the span of reinforced concrete roof beam.
Optionally, the reinforced concrete roof beam includes the first row of upwards arranging from down longitudinal reinforcement and second row under the beam-ends longitudinal reinforcement under the beam-ends, first row longitudinal reinforcement connect in under the beam-ends the connecting plate, the second row longitudinal reinforcement is being close to under the beam-ends connecting plate department cuts.
Optionally, the circular steel tube concrete section steel column includes a structural layer arranged on the outer side of the circular steel tube.
Optionally, the connecting structure comprises a stiffening rib arranged in the round steel pipe at a position corresponding to the leg of the steel bull.
The application also provides a method for connecting the circular steel tube concrete section steel column and the reinforced concrete beam, wherein the method comprises the following steps:
s1, connecting a round steel pipe of the round steel pipe concrete section steel column and a beam-end upper longitudinal steel bar, a beam-end lower longitudinal steel bar and a beam-end waist bar of the reinforced concrete beam through a steel corbel part;
and S2, pouring concrete to form the round steel tube concrete section steel column and the reinforced concrete beam.
Optionally, step S1 further includes disposing a stiffening rib in the round steel pipe at a position corresponding to the steel corbel portion.
According to the technical scheme of this application, longitudinal reinforcement, beam-ends lower longitudinal reinforcement and beam-ends lumbar muscle pass through steel corbel portion and connect in the circular steel tube on the beam-ends of reinforced concrete roof beam, need not to pass the circular steel tube and form the connection, have simplified connection structure, the construction of being convenient for on the one hand, and on the other hand can not destroy the bearing capacity of circular steel tube basically and can ensure through steel corbel portion that biography power accuracy, reliable. Consequently, required bearing capacity just can be ensured to the connection structure of round steel tube concrete shaped steel post and reinforced concrete roof beam of this application is convenient for be under construction.
Additional features and advantages of the present application will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate an embodiment of the invention and, together with the description, serve to explain the invention. In the drawings:
fig. 1 is a schematic top view of a connection structure of a circular concrete filled steel column and a reinforced concrete beam according to a preferred embodiment of the present application;
FIG. 2 is a view taken along the plane A-A in FIG. 1;
FIG. 3 is a view taken along the plane B-B in FIG. 1;
fig. 4 is a schematic top view illustrating a connection structure of a circular concrete filled steel column and a reinforced concrete beam according to another preferred embodiment of the present application;
FIG. 5 is a view taken along the plane C-C in FIG. 4;
fig. 6 is a view taken along the D-D plane in fig. 4.
Detailed Description
The technical solutions of the present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In this application, where the contrary is not stated, the use of directional words such as "upper, lower, left and right" generally means upper, lower, left and right as illustrated with reference to the accompanying drawings; "inner and outer" refer to the inner and outer relative to the profile of the components themselves. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
According to an aspect of the application, a connection structure of round steel tube concrete shaped steel post and reinforced concrete roof beam is provided, wherein, connection structure includes round steel tube concrete shaped steel post 10, reinforced concrete roof beam 20 and steel corbel portion 30, round steel tube concrete shaped steel post 10 includes round steel pipe 11, reinforced concrete roof beam 20 includes longitudinal reinforcement 21, longitudinal reinforcement 22 and beam-ends waist muscle 23 under the beam-ends on the beam-ends, be connected with on the round steel pipe 11 steel corbel portion 30, the beam-ends are gone up longitudinal reinforcement 21, beam-ends down longitudinal reinforcement 22 and beam-ends waist muscle 23 connect respectively in steel corbel portion 30.
Wherein the steel bull leg portion 30 can adopt suitable structure so as to be connected with the circular steel tube 11, the beam-end upper longitudinal reinforcement 21, the beam-end lower longitudinal reinforcement 22 and the beam-end wale 23. For example, in the embodiment shown in fig. 1 to 6, the steel corbel part 30 includes a steel rib 31 connected to the circular steel tube 11 and a connecting plate 32 connected to the steel rib 31 and the circular steel tube 11, and the beam-end upper longitudinal reinforcement 21, the beam-end lower longitudinal reinforcement 22, and the beam-end wale 23 are respectively connected to the connecting plate 32. The steel corbel parts 30 may be provided at appropriate positions on the circular steel tubes 11 according to the positions and the number of the reinforced concrete beams 20 to which the circular steel tube concrete section columns 10 are connected. Specifically, as shown in fig. 1, in order to connect a reinforced concrete beam 20, two steel ribs 31 may be welded at diametrically opposite positions of the outer periphery of the circular steel tube 11, a connecting plate 32 may be welded to the steel ribs 31, and a beam-end upper longitudinal reinforcement 21, a beam-end lower longitudinal reinforcement 22, and a beam-end waist reinforcement 23 are welded to the upper portion, the lower portion, and the middle portion of the connecting plate 32, respectively. It is understood that the steel corbel part 30 may be provided only on one side of the circular steel pipe 11 to connect the reinforced concrete beam 20 on the side; alternatively, the steel corbel parts 30 may be provided at both sides of the circular steel pipe 11 in a plurality of different diameter directions to connect the reinforced concrete beams 20 in different directions. When connecting two not equidirectional through circular steel tube concrete section steel post 10 (that is, the same diameter direction both sides of circular steel tube 11 set up steel corbel portion 30 respectively and connect same reinforced concrete roof beam 20), preferably, two reinforced concrete roof beams 20 can be allowed to have 100 mm's difference in height.
In addition, the circular steel tube concrete section steel column 10 includes a structural layer longitudinal rib 12 and a hoop rib 13 connected to the outer periphery of the circular steel tube 11. In order to reinforce the connection between the circular concrete filled steel tubular section column 10 and the steel corbel portion 30, the structural layer longitudinal ribs 12 are connected to the connecting plate 32 through sleeves. To facilitate the positioning of the stirrup 13, the connection plate 32 is provided with an opening 321 allowing the stirrup 13 to pass through.
It can be understood that for construction convenience, can weld steel structure main part with tubular steel 11, structural layer longitudinal reinforcement 12, stirrup 13, steel corbel portion 30, beam-ends on longitudinal reinforcement 21, beam-ends under longitudinal reinforcement 22 and beam-ends lumbar muscle 23 in advance, can directly pour the concrete after with steel structure main part location during site operation to form tubular steel reinforced concrete section steel column 10 and reinforced concrete roof beam 20.
The coupling structure of the present application is suitable for various forms of the reinforced concrete beam 20, for example, the reinforced concrete beam 20 may include a single row of the longitudinal reinforcing bars 21 on the beam end, the longitudinal reinforcing bars 22 under the beam end, or the reinforced concrete beam 20 may include a double row of the longitudinal reinforcing bars 21 on the beam end and a double row of the longitudinal reinforcing bars 22 under the beam end.
In the case that reinforced concrete beam 20 includes double row longitudinal reinforcement 21 on the beam-ends and double row longitudinal reinforcement 22 under the beam-ends, that is, reinforced concrete beam 20 includes the first row longitudinal reinforcement 21 and the second row on the beam-ends longitudinal reinforcement 21 on the beam-ends.
When the second row of the beam-end longitudinal rebars 21 includes only two beam-end longitudinal rebars 21, the length of the steel corbel part 30 (i.e., the dimension in the extending direction of the reinforced concrete beam 20) may be equal to the height of the reinforced concrete beam 20, using the embodiment of fig. 1 to 3. That is, in the embodiment of fig. 1 to 3, the steel skeleton 31 is a short steel skeleton of a conventional design, which is mainly used to improve the shear resistance, and the connection plate 32 is used to improve the bending resistance. The steel corbel part 30 need not participate in the calculation of the structure at design time.
When the second row includes two or more longitudinal bars 21 at the beam end, in order to improve the bending resistance, as shown in fig. 4 to 6, the steel ribs 31 may form a cantilever structure (i.e., in this embodiment, the steel ribs 31 have both shear resistance and bending resistance), and the extension length of the steel ribs 31 is 1/4 to 1/3 of the span of the reinforced concrete beam 20. At design time, the steel bow portion 30 having the cantilever structure may be involved in the calculation of the structure to determine the corresponding parametric design.
In addition, in the case of the longitudinal reinforcing bars 22 under the double row of beam-ends, as shown in fig. 3 to 6, the reinforced concrete beam 20 includes a first row of the longitudinal reinforcing bars 22 under the beam-end and a second row of the longitudinal reinforcing bars 22 under the beam-end, the first row of the longitudinal reinforcing bars 22 under the beam-end being connected to the connecting plate 32, the second row of the longitudinal reinforcing bars 22 under the beam-end being cut close to the connecting plate (being positioned by banding) to simplify the construction operation.
In the prior art, because on-site connection is needed, welding wires usually need to be overhead welded for the second rows of the longitudinal steel bars 21 on the upper beam ends and the longitudinal steel bars 22 on the lower beam ends, and the welding wires fall off in the welding process and are uncomfortable to be operated by a welder in overhead view, so that the quality of welding seams cannot be guaranteed. It can be understood, in this application, all reinforcing bars (longitudinal reinforcement 21 on the beam-ends, longitudinal reinforcement 22 and beam-ends lumbar muscle 23 under the beam-ends) do not all pass circular steel tube 11, also need not to bypass circular steel tube 11, steel structure main part (circular steel tube 11, structural layer longitudinal reinforcement 12, stirrup 13, steel corbel portion 30, longitudinal reinforcement 21 on the beam-ends, longitudinal reinforcement 22 and beam-ends lumbar muscle 23 under the beam-ends) can weld in advance, therefore need not to weld up, consequently can ensure the welding quality of each welding seam.
In addition, in order to reinforce the connection of the circular steel tube 11 and the steel corbel 30 and improve the shear resistance, the circular steel tube concrete section steel column 10 includes a structural layer 14 disposed outside the circular steel tube 11. The construction layer 14 is obtained by casting concrete. The structural layer 14 does not need to be involved in the structural calculation during the design, and the thickness can be as thin as possible, for example, just covering the longitudinal ribs 12, the stirrups 13 and the corresponding connecting pegs P of the structural layer, and preferably, the thickness of the structural layer 14 is 150 mm. The structural layer 14 may be cast during site construction, which also casts concrete into the interior of the circular steel tube 11 to form the circular steel tube concrete section steel column 10.
For the stability of being connected of strengthening steel corbel portion 30 and circular steel tube 11, connection structure is including corresponding the position setting of steel corbel portion 30 is in stiffening rib 40 in the circular steel tube 11. The stiffening ribs 40 may take any suitable form, such as ribs disposed radially around the inner circumference of the circular steel tube 11, or annular plates disposed along the cross-section of the circular steel tube 11.
According to another aspect of the present application, there is provided a method of connecting a circular reinforced concrete section steel column and a reinforced concrete beam, wherein the method includes:
s1, connecting the circular steel tube 11 of the circular steel tube concrete section steel column 10 with the beam-end upper longitudinal steel bar 21, the beam-end lower longitudinal steel bar 22 and the beam-end waist bar 23 of the reinforced concrete beam 20 through the steel corbel part 30;
and S2, pouring concrete to form the round steel tube concrete section steel column 10 and the reinforced concrete beam 20.
For strengthening the connection stability of the steel corbel part 30 and the round steel tube 11, the step S1 further includes arranging a stiffening rib 40 in the round steel tube 11 at a position corresponding to the steel corbel part 30.
The method of the present application is described below with reference to the accompanying drawings.
In the embodiment shown in fig. 1 to 3, a single row of beam-end upper longitudinal reinforcements 21 and beam-end lower longitudinal reinforcements 22 are provided, and the steel skeleton 31 is a short steel skeleton. In step S1, the steel ribs 31 and the connecting plates 32 are welded to the outer periphery of the circular steel tube 11, the reinforcing ribs 40 are welded in the circular steel tube 11, the structural layer longitudinal ribs 12 are welded to the connecting plates 32, and the beam-end upper longitudinal ribs 21, the beam-end lower longitudinal ribs 22, and the beam-end wales 23 are welded to the connecting plates 32, respectively, to form a steel structure main body portion. The steel structural body portion may then be transported to a job site and positioned. In step S2, concrete is poured into the interior and the exterior of the circular steel tube 11 on site to form the circular steel tube concrete section steel column 10 with the structural layer 14; concrete is poured over the beam-end upper longitudinal bars 21, the beam-end lower longitudinal bars 22, and the beam-end wales 23 to form the reinforced concrete beam 20.
In the embodiment shown in fig. 4 to 6, a double row of beam-end upper longitudinal reinforcements 21 and beam-end lower longitudinal reinforcements 22 are provided, and the steel rib 31 is of a cantilever structure. In step S1, the steel ribs 31 and the connecting plates 32 are welded to the periphery of the circular steel tube 11, the stiffening ribs 40 are welded in the circular steel tube 11, the structural layer longitudinal ribs 12 are welded to the connecting plates 32, the beam-end upper longitudinal bars 21 and the beam-end waist ribs 23 are respectively welded to the connecting plates 32, the first row of beam-end lower longitudinal bars 221 are welded to the connecting plates 32, and the second row of beam-end lower longitudinal bars 222 are bound, positioned and cut off near the connecting plates 32, thereby forming the steel structure main body. The steel structural body portion may then be transported to a job site and positioned. In step S2, concrete is poured into the interior and the exterior of the circular steel tube 11 on site to form the circular steel tube concrete section steel column 10 with the structural layer 14; concrete is poured over the beam-end upper longitudinal bars 21, the beam-end lower longitudinal bars 22, and the beam-end wales 23 to form the reinforced concrete beam 20.
As described above, in the method, the steel structure main body part can be welded in advance in a processing plant and other occasions, overhead welding is not needed, and the welding quality of the steel structure main body part is ensured. During construction, the steel structure main body part is transported to the site and is poured after being positioned. The method reduces the construction difficulty, improves the construction efficiency and can ensure the required overall performance.
The preferred embodiments of the present application have been described in detail above, but the present application is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present application within the technical idea of the present application, and these simple modifications all belong to the protection scope of the present application.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described in the present application.
In addition, any combination of the various embodiments of the present application can be made, and the same should be considered as the disclosure of the present invention as long as the combination does not depart from the spirit of the present application.
Claims (10)
1. The utility model provides a connection structure of round steel tube concrete shaped steel post and reinforced concrete roof beam, a serial communication port, connection structure includes round steel tube concrete shaped steel post (10), reinforced concrete roof beam (20) and steel corbel portion (30), round steel tube concrete shaped steel post (10) includes round steel tube (11), reinforced concrete roof beam (20) include longitudinal reinforcement (21), beam-ends longitudinal reinforcement (22) and beam-ends waist muscle (23) down on the beam-ends, be connected with on round steel tube (11) steel corbel portion (30), beam-ends longitudinal reinforcement (21), beam-ends longitudinal reinforcement (22) and beam-ends waist muscle (23) down connect respectively in steel corbel portion (30).
2. The structure for connecting a round steel tube concrete section steel column and a reinforced concrete beam as recited in claim 1, characterized in that the steel corbel portion (30) comprises a steel rib (31) connected to the round steel tube (11) and a connecting plate (32) connected to the steel rib (31) and the round steel tube (11), and the beam-end upper longitudinal reinforcement (21), the beam-end lower longitudinal reinforcement (22) and the beam-end waist reinforcement (23) are respectively connected to the connecting plate (32).
3. The structure for connecting a round steel tube concrete section steel column and a reinforced concrete beam according to claim 2, wherein the round steel tube concrete section steel column (10) comprises a structural layer longitudinal bar (12) and a hoop bar (13) connected to the outer periphery of the round steel tube (11), the structural layer longitudinal bar (12) is connected to the connecting plate (32) through a sleeve, and the connecting plate (32) is provided with an opening (321) allowing the hoop bar (13) to pass through.
4. The structure for connecting a round steel tube concrete section steel column with a reinforced concrete beam according to claim 2, characterized in that the reinforced concrete beam (20) comprises two rows of the beam-end upper longitudinal reinforcements (21) and two rows of the beam-end lower longitudinal reinforcements (22).
5. The connecting structure of the round steel tube concrete section steel column and the reinforced concrete beam as recited in claim 4, wherein the reinforced concrete beam (20) comprises a first row of the beam-end upper longitudinal bars (21) and a second row of the beam-end upper longitudinal bars (21) and the second row comprises more than two of the beam-end upper longitudinal bars (21), the steel rib (31) forms a cantilever structure, and the extension length of the steel rib (31) is 1/4 to 1/3 of the span of the reinforced concrete beam (20).
6. The connecting structure of the round steel tube concrete section steel column and the reinforced concrete beam as recited in claim 4, wherein the reinforced concrete beam (20) comprises a first row of the beam-end lower longitudinal reinforcements (22) and a second row of the beam-end lower longitudinal reinforcements (22) which are arranged from bottom to top, the first row of the beam-end lower longitudinal reinforcements (22) are connected to the connecting plate (32), and the second row of the beam-end lower longitudinal reinforcements (22) are cut off at a position close to the connecting plate.
7. The connecting structure of a steel reinforced concrete column and a reinforced concrete beam according to any one of claims 1 to 6, wherein the steel reinforced concrete column (10) comprises a structural layer (14) arranged outside the circular steel tube (11).
8. The connecting structure of a round steel tube concrete section steel column and a reinforced concrete beam according to any one of claims 1 to 6, characterized in that the connecting structure comprises stiffening ribs (40) provided in the round steel tube (11) at positions corresponding to the steel corbel portions (30).
9. A method for connecting a circular steel tube concrete section steel column and a reinforced concrete beam is characterized by comprising the following steps:
s1, connecting a circular steel tube (11) of the circular steel tube concrete section steel column (10) with a beam-end upper longitudinal steel bar (21), a beam-end lower longitudinal steel bar (22) and a beam-end waist bar (23) of a reinforced concrete beam (20) through a steel bracket leg (30);
and S2, pouring concrete to form the round steel tube concrete section steel column (10) and the reinforced concrete beam (20).
10. The method for connecting a circular steel tube concrete section steel column and a reinforced concrete beam as claimed in claim 9, wherein the step S1 further comprises providing a stiffening rib (40) in the circular steel tube (11) at a position corresponding to the steel shank portion (30).
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