Joint for supporting reinforced concrete column by steel reinforced concrete transfer beam and mounting method thereof

Abstract

The invention discloses a steel reinforced concrete transfer beam supported reinforced concrete column node and a mounting method thereof. The steel reinforced concrete transfer beam supported reinforced concrete column node comprises an SRC beam, a section steel beam is mounted in the middle of the SRC beam, an RC beam upper column is mounted at the top end of the SRC beam, a plurality of anti-shear studs are in threaded connection with the surface of the section steel beam, and a steel bar sleeve is fixedly mounted at the joint of the RC beam upper column and the SRC beam. When the structural scheme is optimally designed, structural anti-seismic performance and use function analysis are combined, the advantages and disadvantages of steel-concrete composite structural members and joint forms are reasonably considered, member and joint type selection is finally innovatively determined, and the structural scheme is optimized. Influences of a steel distribution form, a steel size and a connection form on bending resistance, shear bearing capacity, deformation and energy dissipation capacity of components and nodes are reasonably considered, a construction method for converting the concrete-filled steel tubular column into the reinforced concrete nodes is provided, people define the installation standard to conduct construction on installation of the conversion beam nodes, and stability and uniformity of installation of the conversion beam nodes are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of transfer beam joint installation technology, specifically to the joint between a steel-concrete transfer beam and a reinforced concrete column, and its installation method. Background Technology

[0002] Steel-concrete composite structures are a type of structure in which steel profiles are embedded in reinforced concrete. Composed of steel bars and concrete, steel-concrete composite structures have significantly higher strength than ordinary concrete. In structural design, they can be used more economically, reducing the amount of building materials used and improving economic efficiency.

[0003] Steel-concrete composite structures, due to the use of reinforcing steel, can effectively resist the destructive forces of earthquakes, increasing the seismic performance of buildings. In earthquake-prone areas, steel-concrete composite structures are a safe and reliable building material. Although the steel sections in steel-concrete composite structures will deform under high temperatures, they will bend without melting or thawing. Moreover, the thermal insulation properties of concrete also play a role in fire prevention, reducing the probability of fire. The construction of steel-concrete composite structures is similar to that of ordinary concrete, but it has a significant advantage: good plasticity. During construction, it can be cut into different lengths according to the requirements of the building design, thus saving time and costs. Steel-concrete composite structures can effectively prevent corrosion and aging, and have high durability, maintaining their strength and stability for a long time. After years of use, the durability of steel-concrete composite structures has been verified. In summary, as an advanced building material, steel-concrete composite structures have significant advantages in terms of strength, seismic performance, fire resistance, ease of construction, and durability. In future buildings, the application of steel-concrete composite structures will be more widespread, becoming an important choice for building structural design.

[0004] Reinforced concrete columns and reinforced concrete beams work together to form a structural system that can improve the overall stiffness of the building structure, giving the building better seismic and wind resistance under external loads such as earthquakes and wind loads, and greatly improving the safety and stability of the building.

[0005] Compared with reinforced concrete structures, steel-concrete composite structures can reduce the cross-sectional dimensions of components, reduce the self-weight of the structure, reduce seismic response, increase effective space, reduce foundation costs, and increase the ductility and durability of components and structures. Therefore, the use of steel-concrete composite structural components can significantly improve the load-bearing capacity, seismic performance, and durability of the structure within a reasonable cost range.

[0006] However, traditional transfer beam joint installation has the following disadvantages:

[0007] Current specifications and atlases do not provide construction methods for reinforced concrete joints in steel-concrete composite columns, and there are no clear standards for the installation of transfer beam joints, resulting in inconsistent stability of the installation. Summary of the Invention

[0008] The purpose of this invention is to provide a steel-concrete composite transfer beam supporting a reinforced concrete column joint and its installation method, in order to solve the problem mentioned in the background art that the current specifications and atlases do not provide construction methods for steel-concrete composite column transfer reinforced concrete joints, and that there are no clear standards for the construction of transfer beam joints, resulting in inconsistent stability of the transfer beam joint installation.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a steel-concrete composite transfer beam supporting a reinforced concrete column joint, comprising an SRC beam, a steel beam installed in the middle of the SRC beam, an RC beam upper column installed at the top of the SRC beam, a plurality of shear studs threadedly connected to the surface of the steel beam, a reinforcing sleeve fixedly installed at the connection between the RC beam upper column and the SRC beam, and stiffening ribs fixedly installed inside the SRC beam.

[0010] As a preferred embodiment of the present invention, the bottom end of the steel bar sleeve is fixedly connected to the top end of the stiffening rib.

[0011] As a preferred embodiment of the present invention, the steel beam is fixedly connected to the SRC beam by shear studs.

[0012] As a preferred embodiment of the present invention, the width of the SRC beam is 150mm.

[0013] As a preferred embodiment of the present invention, the column width of the RC beam is smaller than the beam width of the SRC beam.

[0014] As a preferred embodiment of the present invention, the height of the SRC beam is equal to the height of the steel beam.

[0015] The SRC beam includes a cross support frame and two first beam plates. The two sides of the cross support frame are fixedly connected to the opposite side of the two first beam plates. The two ends of the cross support frame are fixedly installed with second beam plates. The two ends of the two second beam plates on opposite sides are fixedly installed with support plates. A vertical plate is fixedly installed between every two adjacent support plates. The top of the cross support frame is connected to the upper column of the RC beam.

[0016] The RC beam upper column includes two first RC beams and a first height plate. The opposite ends of the two first RC beams are fixedly connected to the two ends of the first height plate. A second RC beam is provided on one side of each of the two first RC beams. A second height plate is fixedly installed between the two second RC beams. Two reinforcing rods located on both sides of the second height plate are fixedly installed between the two second RC beams. Several assembly rods are fixedly installed on one side of the first height plate. The side of the assembly rods away from the first height plate is fixedly connected to the side of the second height plate directly opposite to it. Grooves are provided on the surfaces of the two first RC beams and the two second RC beams. The top of the upper first RC beam and the top of the upper second RC beam are connected to the SRC beam.

[0017] The present invention provides a method for installing a steel-concrete transfer beam supporting a reinforced concrete column joint, comprising the following steps:

[0018] Step 1: Install stiffening ribs: Install stiffening ribs inside the SRC beam to increase the compressive strength of the SRC beam itself;

[0019] Step 2: Assemble the rebar sleeve: Assemble the rebar sleeve for fixing the rebar at the top of the stiffening rib;

[0020] Step 3: Install the RC beam upper column: Fix the RC beam upper column extending to the outside onto the steel reinforcement sleeve;

[0021] Step 4: Assemble the steel beam: Install the steel beam on one side of the SRC beam using shear studs.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. When optimizing the structural design, the advantages and disadvantages of the steel-concrete composite structure components and node forms should be reasonably considered in combination with the analysis of the seismic performance and functional use of the structure. Finally, the selection of components and nodes should be innovatively determined, and the influence of steel distribution form, steel size and connection form on the bending and shear bearing capacity, deformation and energy dissipation capacity of components and nodes should be reasonably considered.

[0024] 2. Provide the construction method for the steel-concrete composite column to reinforced concrete joint, and specify the installation standard for the transfer beam joint to ensure the stability and uniformity of the transfer beam joint installation. Attached Figure Description

[0025] Figure 1 This is a detailed structural drawing of the steel-concrete transfer beam supporting the reinforced concrete column of the present invention;

[0026] Figure 2 This is an elevation view of the steel-concrete transfer beam supporting the reinforced concrete column node of the present invention;

[0027] Figure 3 This is a flowchart of the present invention;

[0028] Figure 4 This is a schematic diagram of the SRC beam of the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of the upper column of the RC beam of the present invention.

[0030] In the diagram: 1. RC beam upper column; 101. First RC beam; 102. First height plate; 103. Assembly rod; 104. Second RC beam; 105. Reinforcing rod; 106. Second height plate; 107. Groove; 2. Shear stud; 3. Stiffening rib; 4. Steel beam; 5. SRC beam; 51. First beam plate; 52. Cross support frame; 53. Support plate; 54. Vertical plate; 55. Second beam plate; 6. Rebar sleeve. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figure 1-5 The present invention provides a steel-concrete transfer beam supporting a reinforced concrete column joint, including an SRC beam 5, a steel beam 4 installed in the middle of the SRC beam 5, an RC beam upper column 1 installed at the top of the SRC beam 5, a number of shear studs 2 threadedly connected to the surface of the steel beam 4, a steel sleeve 6 fixedly installed at the connection between the RC beam upper column 1 and the SRC beam 5, and stiffening ribs 3 fixedly installed inside the SRC beam 5.

[0033] The bottom end of the steel bar sleeve 6 is fixedly connected to the top end of the stiffening rib 3.

[0034] The steel beam 4 is fixedly connected to the SRC beam 5 by shear studs 2.

[0035] The width of SRC beam 5 is 150mm.

[0036] The width of column 1 on the RC beam is smaller than the width of the SRC beam 5.

[0037] The height of SRC beam 5 is equal to the height of steel beam 4.

[0038] The SRC beam 5 includes a cross support frame 52 and two first beam plates 51. The two sides of the cross support frame 52 are fixedly connected to the opposite side of the two first beam plates 51, and a second beam plate 55 is fixedly installed at both ends of the cross support frame 52. Support plates 53 are fixedly installed at both ends of the opposite side of the two second beam plates 55. A vertical plate 54 is fixedly installed between every two adjacent support plates 53. The top of the cross support frame 52 is connected to the upper column 1 of the RC beam.

[0039] The RC beam upper column 1 includes two first RC beams 101 and a first height plate 102. The opposite ends of the two first RC beams 101 are fixedly connected to both ends of the first height plate 102. A second RC beam 104 is provided on one side of each of the two first RC beams 101. A second height plate 106 is fixedly installed between the two second RC beams 104. Two reinforcing rods 105 are fixedly installed between the two second RC beams 104, located on both sides of the second height plate 106. Several assembly rods 103 are fixedly installed on one side of the first height plate 102. The sides of the assembly rods 103 away from the first height plate 102 are all connected to the first height plate 102. The second height plate 106 is fixedly connected to the side facing the first RC beam 101. The surfaces of the two first RC beams 101 and the two second RC beams 104 are all provided with grooves 107. The top of the upper first RC beam 101 and the top of the upper second RC beam 104 are connected to the SRC beam 5. The upper column 1 of the RC beam is divided into two sides, one side is the first RC beam 101 and the other side is the second RC beam 104. The second height plate 106 and the reinforcing rod 105 are installed between the two second RC beams 104, dividing the two second RC beams 104 into multiple triangles, which increases the compressive strength and stability of the upper column 1 of the RC beam.

[0040] The present invention provides a method for installing a steel-concrete transfer beam supporting a reinforced concrete column joint, comprising the following steps:

[0041] Step 1: Install stiffening ribs 3: Install stiffening ribs 3 inside the SRC beam 5 to increase the compressive strength of the SRC beam 5 itself;

[0042] Step 2: Assemble the rebar sleeve 6: Assemble the rebar sleeve 6 for fixing the rebar at the top of the stiffening rib 3;

[0043] Step 3: Install RC beam upper column 1: Fix the RC beam upper column 1 extending to the outside onto the steel sleeve 6;

[0044] Step 4: Assemble the steel beam 4: Install the steel beam 4 on one side of the SRC beam 5 using shear studs 2.

[0045] In this invention, stiffening ribs 3 are installed inside the SRC beam 5 to increase the compressive strength of the SRC beam 5 itself; the cross support frame 52 is set to reduce the weight of the SRC beam 5 itself and improve the stability of the SRC beam 5 itself; a steel sleeve 6 for fixing steel bars is assembled at the top of the stiffening rib 3; an RC beam upper column 1 extending to the outside is fixed on the steel sleeve 6; the RC beam upper column 1 is divided into two sides, one side is the first RC beam 101, and the other side is the second RC beam 104, and the second height plate 106 and the reinforcing rod 105 are installed between the two second RC beams 104, dividing the two second RC beams 104 into multiple triangles, which increases the compressive strength and stability of the RC beam upper column 1 itself; a steel beam 4 is installed on one side of the SRC beam 5 by shear studs 2.

[0046] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A steel-concrete composite transfer beam supporting a reinforced concrete column joint, including an SRC beam (5), characterized in that: A steel beam (4) is installed in the middle of the SRC beam (5), and an RC beam column (1) is installed at the top of the SRC beam (5). Several shear studs (2) are threaded on the surface of the steel beam (4). A steel sleeve (6) is fixedly installed at the connection between the RC beam column (1) and the SRC beam (5). Stiffening ribs (3) are fixedly installed inside the SRC beam (5).

2. The steel-concrete transfer beam supporting reinforced concrete column joint according to claim 1, characterized in that: The bottom end of the steel bar sleeve (6) is fixedly connected to the top end of the stiffening rib (3).

3. The steel-concrete transfer beam supporting a reinforced concrete column joint according to claim 1, characterized in that: The steel beam (4) is fixedly connected to the SRC beam (5) by shear studs (2).

4. The steel-concrete transfer beam supporting a reinforced concrete column joint according to claim 1, characterized in that: The width of the SRC beam (5) is 150mm.

5. The steel-concrete transfer beam supporting a reinforced concrete column joint according to claim 1, characterized in that: The column width of the upper column (1) of the RC beam is smaller than the beam width of the SRC beam (5).

6. The steel-concrete transfer beam supporting a reinforced concrete column joint according to claim 1, characterized in that: The height of the SRC beam (5) is equal to the height of the steel beam (4).

7. The steel-concrete transfer beam supporting a reinforced concrete column joint according to claim 1, characterized in that: The SRC beam (5) includes a cross support frame (52) and two first beam plates (51). The two sides of the cross support frame (52) are fixedly connected to the opposite side of the two first beam plates (51). The two ends of the cross support frame (52) are fixedly installed with second beam plates (55). The two ends of the two second beam plates (55) on opposite sides are fixedly installed with support plates (53). A vertical plate (54) is fixedly installed between every two adjacent support plates (53). The top of the cross support frame (52) is connected to the upper column (1) of the RC beam.

8. The steel-concrete transfer beam supporting a reinforced concrete column joint according to claim 1, characterized in that: The RC beam upper column (1) includes two first RC beams (101) and a first height plate (102). The opposite ends of the two first RC beams (101) are fixedly connected to the two ends of the first height plate (102). A second RC beam (104) is provided on one side of each of the two first RC beams (101). A second height plate (106) is fixedly installed between the two second RC beams (104). Two reinforcing rods located on both sides of the second height plate (106) are fixedly installed between the two second RC beams (104). (105) A plurality of assembly rods (103) are fixedly installed on one side of the first height plate (102). The side of the plurality of assembly rods (103) away from the first height plate (102) is fixedly connected to the side of the second height plate (106) directly opposite. Grooves (107) are provided on the surfaces of the two first RC beams (101) and the surfaces of the two second RC beams (104). The top of the upper first RC beam (101) and the top of the upper second RC beam (104) are connected to the SRC beam (5).

9. The installation method of the steel-concrete transfer beam supporting the reinforced concrete column joint according to any one of claims 1-8, characterized in that, Includes the following steps: Step 1: Install stiffening ribs (3): Install stiffening ribs (3) inside the SRC beam (5) to increase the compressive strength of the SRC beam (5); Step 2: Assemble the steel bar sleeve (6): Assemble the steel bar sleeve (6) for fixing the steel bars at the top of the stiffening rib (3); Step 3: Install the RC beam upper column (1): Fix the RC beam upper column (1) extending to the outside on the steel sleeve (6); Step 4: Assemble the steel beam (4): Install the steel beam (4) on one side of the SRC beam (5) using shear studs (2).

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