CN116104205A - Reinforced concrete beam and steel column connection node structure - Google Patents
Reinforced concrete beam and steel column connection node structure Download PDFInfo
- Publication number
- CN116104205A CN116104205A CN202310106452.7A CN202310106452A CN116104205A CN 116104205 A CN116104205 A CN 116104205A CN 202310106452 A CN202310106452 A CN 202310106452A CN 116104205 A CN116104205 A CN 116104205A
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- Prior art keywords
- reinforced concrete
- steel column
- steel
- concrete beam
- lapping plate
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 138
- 239000010959 steel Substances 0.000 title claims abstract description 138
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 58
- 108010068370 Glutens Proteins 0.000 claims abstract description 22
- 235000021312 gluten Nutrition 0.000 claims abstract description 22
- 230000003014 reinforcing effect Effects 0.000 abstract description 19
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract description 11
- 238000010276 construction Methods 0.000 abstract description 10
- 238000003466 welding Methods 0.000 description 8
- 239000004567 concrete Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009365 direct transmission Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000009417 prefabrication 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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- 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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- 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
The invention relates to the technical field of steel structure buildings, and provides a reinforced concrete beam and steel column connecting node structure, which at least comprises: a steel column; the reinforced concrete beam is arranged on the side face of the steel column and is provided with a plurality of layers of steel bars; bracket, one end of which is inserted into the steel column, and the other end of which extends into the reinforced concrete beam; one end of the first lapping plate is connected with the steel column, the other end of the first lapping plate extends to the reinforced concrete beam, and at least part of beam support gluten is welded on the surface of the first lapping plate; and one end of the second lapping plate is connected with the steel column, the other end of the second lapping plate extends to the reinforced concrete beam, and at least part of beam support bottom ribs are welded on the surface of the second lapping plate. According to the node structure for connecting the reinforced concrete beam and the steel column, the number of the reinforcing plates can be optimized by arranging the steel corbels and transmitting force through the steel corbels; and only a part of the reinforcing steel bars are welded with the first lapping plate (the second lapping plate), so that the construction speed can be increased, and the safety and reliability of the node are improved.
Description
Technical Field
The invention relates to the technical field of steel structure buildings, in particular to a reinforced concrete beam and steel column connecting node structure.
Background
As the representation of green building, the steel structure has the characteristics of high strength, light dead weight, good plasticity, excellent earthquake resistance and the like, is particularly suitable for high-rise or large-span buildings, and has the advantages of factory prefabrication, high manufacturing and mounting speed, environmental protection and energy conservation compared with the traditional concrete structure. When the steel structure is constructed on site, the components are mainly connected by welding or bolts, so that the rapid assembly construction of the building is realized.
In the existing connecting node structure of the reinforced concrete beam and the steel column, the number of longitudinal beam rib layers and the number of reinforcing plate layer are in one-to-one correspondence under the normal condition, all longitudinal beam ribs are required to be welded with the reinforcing plate layer, the welding workload is large, and particularly the welding difficulty of the beam bottom rib is larger, so that the construction speed is low and the reliability of the construction quality is low.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is that in the existing connecting node structure of the reinforced concrete beam and the steel column, the number of beam longitudinal ribs and the number of reinforcing plate layers are in one-to-one correspondence under the normal condition, all beam longitudinal ribs are required to be welded with the reinforcing plate, the welding workload is large, and especially the welding difficulty of beam bottom ribs is larger, so that the construction speed is low and the reliability of construction quality is not high, thereby providing the connecting node structure of the reinforced concrete beam and the steel column.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a reinforced concrete beam and steel column connection node structure, comprising at least: a steel column; the reinforced concrete beam is arranged on the side face of the steel column, the reinforced concrete beam and the steel column are mutually perpendicular, and the reinforced concrete beam is provided with a plurality of layers of steel bars which are arranged at intervals along the length direction of the steel column; the bracket, one end is inserted in the steel column, the other end stretches into the reinforced concrete beam, the steel bars positioned at one side of the bracket are denoted as beam support gluten, and the steel bars positioned at the other side of the bracket are denoted as beam support bottom gluten; one end of the first lapping plate is connected with the steel column, the other end of the first lapping plate extends to the reinforced concrete beam, and at least part of the beam support gluten is welded on the surface of the first lapping plate; and one end of the second lapping plate is connected with the steel column, the other end of the second lapping plate extends to the reinforced concrete beam, and at least part of the beam support bottom ribs are welded on the surface of the second lapping plate.
Further, the steel bars at the outermost layer in the beam support gluten are positioned at one side of the first lapping plate far away from the bracket, and the steel bars at the outermost layer are lapped and welded on the first lapping plate; the steel bars of the rest layers in the beam support gluten all extend to the steel column and are not contacted with the steel column and the first lapping plate.
Further, the outermost reinforcing steel bar in the beam support bottom rib is positioned at one side of the second lapping plate close to the bracket, and two reinforcing steel bars positioned at the edge of the outermost reinforcing steel bar are lapped and welded on the second lapping plate; the steel bars of the rest layers in the bottom bars of the beam support extend to the steel column and are not contacted with the steel column and the second lapping plate.
Further, the steel bars overlapped and welded on the second overlapped plate in the steel bars at the outermost layer in the bottom steel bars of the beam support are not less than 30% of the total number of the steel bars at the layer.
Further, the bracket is I-steel, and a plurality of pegs are arranged on the upper flange and the lower flange of the bracket.
Further, a stiffening plate is arranged in the steel column and provided with two plate surfaces which are arranged at intervals, and the upper flange and/or the lower flange of the bracket are/is clamped between the two plate surfaces of the stiffening plate.
Further, the length of the first lapping plate is larger than five times the diameter of the steel bars at the outermost layer in the beam support gluten.
Further, the length of the second lapping plate is larger than five times the diameter of the steel bars at the outermost layer in the bottom bars of the beam support.
Further, the beam body which coincides with the bracket in the length direction of the reinforced concrete beam is hooped by adopting stirrups to the outer layer of steel bars, and the rest part of the beam body is hooped by adopting stirrups to the outer layer of steel bars and the inner layer of steel bars.
Further, the bracket is not less than 1m in length.
The technical scheme of the invention has the following advantages:
according to the reinforced concrete beam and steel column connecting node structure, the steel corbels are arranged, and force is transferred through the steel corbels, so that the first lapping plate (the second lapping plate) does not need to be in one-to-one correspondence with the layer number of the reinforced steel bars, and the number of the lapping plates can be optimized; and only a part of the reinforcing steel bars are welded with the first lapping rib plates (the second lapping rib plates), so that the welding quantity of the reinforcing steel bars and the first lapping rib plates (the second lapping rib plates) can be reduced, the construction speed is increased, and the safety and the reliability of the node are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a side view of a reinforced concrete beam and steel column connection node structure in an embodiment of the present invention;
fig. 2 is a top view of a steel column and bracket in a reinforced concrete beam and steel column connection node structure according to an embodiment of the present invention.
1. A steel column; 2. A reinforced concrete beam; 3. A bracket;
4. a first lapping plate; 5. A second lapping plate; 6. Beam support gluten;
7. a beam support bottom rib; 8. A peg; 9. Stiffening plates;
10. and (5) hooping.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Fig. 1 is a side view of a reinforced concrete beam and steel column connection node structure in an embodiment of the present invention; as shown in fig. 1, this embodiment provides a connection node structure between a reinforced concrete beam 2 and a steel column 1, which at least includes: a steel column 1; the reinforced concrete beam 2 is arranged on the side surface of the steel column 1, and the reinforced concrete beam 2 and the steel column 1 are mutually perpendicular, for example, the reinforced concrete beam 2 can be arranged on four side surfaces of the steel column 1 along the circumferential direction of the steel column 1, and the reinforced concrete beam 2 is provided with a plurality of layers of reinforcing steel bars which are arranged at intervals along the length direction of the steel column 1; one end of the bracket 3 is inserted into the steel column 1, the contact part of the bracket 3 and the steel column 1 can be welded, the other end of the bracket 3 stretches into the reinforced concrete beam 2, the steel bars positioned on one side of the bracket 3 are denoted as beam support gluten 6, and the steel bars positioned on the other side of the bracket 3 are denoted as beam support bottom gluten 7; for example, the center of the bracket 3 may coincide with the center of the reinforced concrete beam 2, and at this time, the number of layers of the steel bars included in the beam support gluten 6 may be half of the total number of layers of the steel bars in the whole reinforced concrete beam 2, and the number of layers of the steel bars included in the beam support bottom gluten 7 may be half of the total number of layers of the steel bars in the whole reinforced concrete beam 2. One end of the first lapping plate 4 can be welded with the steel column 1, the other end extends to the reinforced concrete beam 2, and at least part of beam support gluten 6 is welded on the surface of the first lapping plate 4; and one end of the second reinforcing plate 5 can be welded with the steel column 1, the other end of the second reinforcing plate extends to the reinforced concrete beam 2, and at least part of beam support bottom ribs 7 are welded on the surface of the second reinforcing plate 5.
According to the node structure for connecting the reinforced concrete beam 2 and the steel column 1, the steel corbels 3 are arranged, and force is transferred through the steel corbels 3, so that the first reinforcing plates 4 (the second reinforcing plates 5) do not need to be in one-to-one correspondence with the number of layers of the reinforced steel bars, and the number of the reinforcing plates can be optimized; moreover, only a part of the reinforcing steel bars are welded with the first lapping rib plates 4 (the second lapping rib plates 5), so that the welding quantity of the reinforcing steel bars and the first lapping rib plates 4 (the second lapping rib plates 5) can be reduced, the construction speed is increased, and the safety and the reliability of the node are improved.
Preferably, the steel bars of the outermost layer in the beam support gluten 6 are positioned at one side of the first lapping plate 4 far away from the bracket 3, and the steel bars of the outermost layer are lapped and welded on the first lapping plate 4; the steel bars of the rest layers in the beam support gluten 6 extend to the steel column 1 and are not contacted with the steel column 1 and the first reinforcing plate 4.
Preferably, the steel bars of the outermost layer in the beam support bottom bars 7 are positioned at one side of the second lapping plate 5 close to the bracket 3, and two steel bars positioned at the edge of the outermost layer are lapped and welded on the second lapping plate 5; the steel bars of the rest layers in the beam support bottom bars 7 extend to the steel column 1 and are not contacted with the steel column 1 and the second reinforcing plate 5.
Wherein, in the reinforcing bar of the outmost layer in beam support bottom muscle 7 overlap joint and weld the reinforcing bar on the second and take the gusset 5 and be no less than 30% of this layer total number of reinforcing bars, the other reinforcing bars in this outer layer reinforcing bar can overlap joint on the second and take the gusset 5 alone, and do not need to take the gusset 5 with the second and weld.
Fig. 2 is a top view of a steel column and a bracket in a reinforced concrete beam and steel column connection node structure in an embodiment of the present invention, as shown in fig. 2, preferably, the bracket 3 is i-steel, and a plurality of studs 8 are disposed on an upper flange and a lower flange of the bracket 3. For example, two rows of studs 8 can be arranged on the upper flange of the bracket 3, the interval between two adjacent studs 8 in the same row can be set according to the requirement, for example, the interval between two studs 8 can be 200mm, the studs 8 are not connected with other structures, after concrete is poured, the studs 8 are wrapped by concrete, and at the moment, the beam internal force of the reinforced concrete beam 2 can be transmitted through the studs 8.
Wherein, be provided with stiffening plate 9 in the steel column 1, stiffening plate 9 has two faces that set up each other at a distance from each other, and the top flange and/or the bottom flange of bracket 3 press from both sides and establish between two faces of stiffening plate 9.
Wherein, the length of the first lapping plate 4 is larger than five times the diameter of the steel bars at the outermost layer in the beam support gluten 6. Similarly, the length of the second lapping plate 5 is larger than five times the diameter of the steel bars at the outermost layer in the beam support bottom bar 7.
The beam body overlapping with the bracket 3 along the length direction of the reinforced concrete beam 2 is hooped by adopting the hooping 10 to the outer reinforcing steel bar, and the bracket 3 can be cut by itself, so that the beam body overlapping with the bracket 3 on the beam body only needs to be hooped by the outer layer, thereby facilitating the simplification of construction. The rest of the beam body is not blocked by the bracket 3, so all the reinforcing steel bars of the outer layer and the inner layer can be hooped by adopting the hooping 10.
Preferably, the length of the bracket 3 is not less than 1m, and the specific size can be selected according to actual needs after the node stress analysis calculation is performed by finite element analysis software. So set up, through bracket 3 with the direct transmission of most roof beam internal force to steel column 1, the reinforcing bar transmission that the surplus internal force was welded on first gusset 4 (second gusset 5 is taken to the gusset).
In conclusion, the reinforced concrete beam 2 and the steel column 1 in the application are connected to form a node structure, so that the node composition is simplified as much as possible under the condition of ensuring the force transmission safety of the structure, the manufacturing speed of the component is accelerated, the field welding workload is reduced, and the construction efficiency and the node reliability are greatly improved.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (10)
1. The utility model provides a reinforced concrete roof beam and steel column connected node structure which characterized in that includes at least:
a steel column;
the reinforced concrete beam is arranged on the side face of the steel column, the reinforced concrete beam and the steel column are mutually perpendicular, and the reinforced concrete beam is provided with a plurality of layers of steel bars which are arranged at intervals along the length direction of the steel column;
the bracket, one end is inserted in the steel column, the other end stretches into the reinforced concrete beam, the steel bars positioned at one side of the bracket are denoted as beam support gluten, and the steel bars positioned at the other side of the bracket are denoted as beam support bottom gluten;
one end of the first lapping plate is connected with the steel column, the other end of the first lapping plate extends to the reinforced concrete beam, and at least part of the beam support gluten is welded on the surface of the first lapping plate;
and one end of the second lapping plate is connected with the steel column, the other end of the second lapping plate extends to the reinforced concrete beam, and at least part of the beam support bottom ribs are welded on the surface of the second lapping plate.
2. The reinforced concrete beam-to-steel column joint structure according to claim 1, wherein,
the steel bars of the outermost layer in the beam support gluten are positioned at one side of the first lapping plate far away from the bracket, and the steel bars of the outermost layer are lapped and welded on the first lapping plate;
the steel bars of the rest layers in the beam support gluten all extend to the steel column and are not contacted with the steel column and the first lapping plate.
3. The reinforced concrete beam-to-steel column joint structure according to claim 1, wherein,
the steel bars of the outermost layer in the beam support bottom bars are positioned at one side of the second lapping plate close to the bracket, and two steel bars positioned at the edge of the outermost layer are lapped and welded on the second lapping plate;
the steel bars of the rest layers in the bottom bars of the beam support extend to the steel column and are not contacted with the steel column and the second lapping plate.
4. The reinforced concrete beam-to-steel column joint structure according to claim 3, wherein,
and the steel bars overlapped and welded on the second overlapped plate in the steel bars at the outermost layer in the bottom steel bars of the beam support are not less than 30% of the total number of the steel bars at the layer.
5. The reinforced concrete beam-steel column connection node structure according to any one of claims 1 to 4, wherein,
the bracket is I-steel, and a plurality of pegs are arranged on the upper flange and the lower flange of the bracket.
6. The reinforced concrete beam-to-steel column joint structure according to claim 5, wherein,
the steel column is internally provided with a stiffening plate, the stiffening plate is provided with two plate surfaces which are arranged at intervals, and the upper flange and/or the lower flange of the bracket are clamped between the two plate surfaces of the stiffening plate.
7. The reinforced concrete beam-to-steel column joint structure according to claim 1, wherein,
the length of the first lapping plate is larger than five times the diameter of the steel bars at the outermost layer in the beam support gluten.
8. The reinforced concrete beam-to-steel column joint structure according to claim 1, wherein,
the length of the second lapping plate is larger than five times the diameter of the steel bars at the outermost layer in the bottom bars of the beam support.
9. The reinforced concrete beam-to-steel column joint structure according to claim 1, wherein,
the beam body which coincides with the bracket along the length direction of the reinforced concrete beam is hooped by adopting stirrups to carry out outer-layer steel bars, and the rest part of the beam body is hooped by adopting stirrups to carry out outer-layer and inner-layer steel bars.
10. The reinforced concrete beam-to-steel column joint structure according to claim 1, wherein,
the length of the bracket is not less than 1m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310106452.7A CN116104205A (en) | 2023-02-03 | 2023-02-03 | Reinforced concrete beam and steel column connection node structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310106452.7A CN116104205A (en) | 2023-02-03 | 2023-02-03 | Reinforced concrete beam and steel column connection node structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116104205A true CN116104205A (en) | 2023-05-12 |
Family
ID=86253930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310106452.7A Pending CN116104205A (en) | 2023-02-03 | 2023-02-03 | Reinforced concrete beam and steel column connection node structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116104205A (en) |
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2023
- 2023-02-03 CN CN202310106452.7A patent/CN116104205A/en active Pending
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