A connection node between a concrete component and a steel support

Abstract

The invention relates to the technical field of concrete member-steel support, and specifically discloses a connection node between a concrete member and a steel support, including a concrete frame and a steel support fixed between the concrete frame, the steel support is connected to the concrete frame through a connector, the concrete frame includes a concrete beam and a concrete column, and the steel support is provided with two, the connector includes connector one and connector two, the top ends of the two steel supports are respectively connected to the concrete beam through connector one, and the bottom ends of the two steel supports are connected to the connection between the concrete beam and the concrete column through connector two. The present invention adopts the above-mentioned connection node between a concrete member and a steel support, and the connection node has strong structural stability, improves the bearing capacity of the connection node, has clear force transmission, is easy to process, reduces construction difficulty, speeds up the installation efficiency of the node, improves the project construction progress, and has good economic benefits and engineering applicability.

Description

Technical Field

[0001] The invention relates to the technical field of concrete member-steel support, and in particular to a connection node between a concrete member and a steel support. Background Art

[0002] Reinforced concrete frame structures are widely used and have a history of hundreds of years. When the lateral stiffness of reinforced concrete frame structures is insufficient, it is usually necessary to set up lateral force resisting components, such as shear walls and steel supports, to increase their ability to resist horizontal loads. Since concrete is a brittle material, its seismic performance is poor, and energy-absorbing components are usually required when conducting seismic design. Steel supports are both an effective lateral force resisting component and can enable frame structures to have higher lateral stiffness. In particular, when steel supports are buckling-restrained supports, they are energy-absorbing components with superior performance, dissipating a large amount of seismic energy absorbed by the structure through the yielding of their core plates.

[0003] Steel support-concrete frame structure has been widely used in the design of main power plant buildings in thermal power plants in high seismic areas. The existing steel support and concrete connection nodes need to be pre-embedded in the concrete components, which is difficult to construct and the arrangement of the steel bars in the concrete conflicts with the position of the steel bars. There are also problems such as slow node installation and unreliable connection. The traditional way of connecting steel supports to concrete components will result in low bearing capacity of the connection nodes. Different embedded parts construction schemes have a significant impact on the stress distribution, cracks and deformation of the beam-column nodes. Various horizontal and vertical steel bars are staggered in the node area, and the embedded iron parts and anchor bars are easily collided with the beam-column force-bearing steel bars, which makes construction difficult and it is difficult to meet the requirements of transmitting the internal forces of the structure. Summary of the invention

[0004] The purpose of the present invention is to provide a connection node between a concrete member and a steel support member, which has strong structural stability, high bearing capacity, clear force transmission, simple processing, reduced construction difficulty, accelerated node installation efficiency, improved project construction progress, and has good economic benefits and engineering applicability.

[0005] To achieve the above-mentioned purpose, the present invention provides a connection node between a concrete member and a steel support, comprising a concrete frame and a steel support fixed between the concrete frames, wherein the steel support is connected to the concrete frame through a connecting piece, the concrete frame comprises a concrete beam and a concrete column, and two steel supports are provided, wherein the connecting piece comprises a connecting piece 1 and a connecting piece 2, the top ends of the two steel supports are respectively connected to the concrete beam through the connecting piece 1, and the bottom ends of the two steel supports are connected to the connection between the concrete beam and the concrete column through the connecting piece 2, the connecting piece 2 comprises a support plate, an extension plate, and a top column, and the connecting piece 1 comprises a vertical plate, a horizontal plate, and an inclined plate.

[0006] Preferably, extension plates parallel to the concrete beam and the concrete column are respectively provided on both sides of the support plate, and a top column is respectively provided at one end of the extension plate, and a rotatably connected supporting plate is provided on the top column.

[0007] Preferably, two connecting plates are provided at the bottom of the support plate, and corresponding baffles are respectively provided at the bottom of the two connecting plates. A portion of the connecting plates is located on the outside of the concrete beam and the concrete column, and a portion of the connecting plates is located in the concrete inside the intersection of the concrete beam and the concrete column. The baffle is L-shaped and is located in the concrete inside the intersection of the concrete beam and the concrete column.

[0008] Preferably, a groove is provided on the upper surface of the support plate, and bolt holes are evenly distributed in the circumferential direction of the groove. A mounting plate is provided at the bottom of the steel support, and the mounting plate is installed in the groove and matched with the groove, and bolts matched with the bolt holes are provided on the mounting plate.

[0009] Preferably, the center line of the steel support and the center line of the support plate are located on the same straight line.

[0010] Preferably, bolts are provided on the inner side of the extension plate, and the bolts are located in the concrete of the concrete beam and the concrete column. The support plate is welded to the extension plate, and the extension plate is welded to the top column. The top column is respectively perpendicular to the concrete beam and the concrete column. The support plate is connected to the steel support bolts, and the shape of the support plate is adapted to the shape of the steel support surface.

[0011] Preferably, the vertical plate and the horizontal plate are vertically welded, and the two ends of the inclined plate are respectively welded to one end of the vertical plate and the horizontal plate. The vertical plate, the inclined plate and the horizontal plate form an isosceles triangle. A vertical support plate is provided at the inner center of the inclined plate, and one end of the support plate is welded to the connection between the vertical plate and the horizontal plate.

[0012] Preferably, bolts are provided on the inner side of the horizontal plate, and the bolts are located in the concrete of the concrete beam.

[0013] Preferably, a mounting groove corresponding to the steel support is provided on the upper surface of the inclined plate, and the top of the steel support is connected to the inner bolts of the mounting groove.

[0014] The advantages and positive effects of the connection node between a concrete member and a steel support member described in the present invention are:

[0015] 1. The present invention improves the stability and bearing capacity of the connection node through the support plate, extension plate and top column of the second connector. The support plate is provided with a groove at the bottom of the steel support for limiting the position, which is convenient for installing the steel support and determining the installation position of the steel support.

[0016] 2. The present invention connects the steel support to the concrete beam through a connecting piece. The triangular connecting piece is easy to process, has strong structural stability and high bearing capacity. The mounting groove on the inclined plate limits the installation of the top of the steel support, making it easy to determine the position of the steel support.

[0017] 3. Connectors 1 and 2 are pre-buried in concrete beams and concrete columns. When installing the steel support, you only need to bolt the upper and lower ends of the steel support to the inclined plate and the support plate respectively, which reduces the construction difficulty, improves the installation efficiency, and speeds up the project construction progress, with good economic benefits and engineering applicability.

[0018] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a connection node between a concrete component and a steel support member of the present invention;

[0020] Figure 2 A schematic diagram of a baffle in a connection node between a concrete member and a steel support member of the present invention;

[0021] Figure 3 A top view of a support plate in a connection node between a concrete member and a steel support member of the present invention;

[0022] Figure 4 A schematic diagram of a steel support in a connection node between a concrete member and a steel support member according to the present invention;

[0023] Figure 5 It is a schematic diagram of a top column in a connection node between a concrete component and a steel support member of the present invention.

[0024] Reference numerals

[0025] 1. Steel support; 2. Concrete column; 3. Extension plate; 4. Connection plate; 5. Support plate; 6. Top column; 7. Support plate; 8. Concrete beam; 9. Bolts; 10. Support plate; 11. Vertical plate; 12. Horizontal plate; 13. Inclined plate; 14. Baffle; 15. Groove; 16. Bolt hole; 17. Mounting plate. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is further described below through the accompanying drawings and embodiments.

[0027] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] Example

[0029] like Figure 1 As shown, a connection node between a concrete member and a steel support member includes a concrete frame and a steel support 1 fixed between the concrete frames. The steel support 1 is connected to the concrete frame through a connector. The concrete frame includes a concrete beam 8 and a concrete column 2. The concrete frame contains two concrete beams 8 and two concrete columns 2 respectively. The two concrete beams 8 are arranged in parallel, and the two concrete columns 2 are arranged in parallel. The two ends of the concrete beam 8 are respectively connected vertically to the two ends of the concrete column 2. There are two steel supports 1, and the connectors include a connector 1 and a connector 2. The connector 1 includes a vertical plate 11, a horizontal plate 12, and an inclined plate 13. The top ends of the two steel supports 1 are respectively connected to the concrete beam 8 through the connector 1. The connector 1 is located at the bottom end of the concrete beam 8. The two steel supports 1 correspond to the two connectors 1, and the horizontal plates 12 of the two connectors 1 are welded and connected. The bottom ends of the two steel supports 1 are connected to the connection between the concrete beam 8 and the concrete column 2 through the connector 2. The connector 2 includes a support plate 5, an extension plate 3, and a top column 6. The two steel supports 1 and the concrete beam 8 and the concrete column 2 are surrounded by a triangle, and the structure is stable.

[0030] like Figure 5 As shown, the two sides of the support plate 5 are respectively provided with extension plates 3 parallel to the concrete beam 8 and the concrete column 2, and one end of the extension plate 3 is respectively provided with a top column 6, and a rotatably connected support plate 7 is provided on the top column 6. The support plate 7 is bolted to the steel support 1, and the shape of the support plate 7 is adapted to the shape of the surface of the steel support 1. The rotatable connection between the support plate 7 and the top column 6 belongs to the prior art and will not be repeated here. The support plate 7 can be rotated and the support plate 7 can be appropriately adjusted to facilitate the connection between the support plate 7 and the steel support 1. Bolt holes 16 for bolt connection are provided on the steel support 1 and the support plate 7.

[0031] like Figure 2As shown, two connecting plates 4 are provided at the bottom of the support plate 5, and corresponding baffles 14 are provided at the bottom of the two connecting plates 4, respectively. A portion of the connecting plates 4 is located outside the concrete beam 8 and the concrete column 2, and a portion is located in the concrete inside the intersection of the concrete beam 8 and the concrete column 2. The baffle 14 is L-shaped and located in the concrete inside the intersection of the concrete beam 8 and the concrete column 2. The two connecting plates 4 are arranged parallel and symmetrically at the bottom of the support plate 5, and the shape of the bottom of the connecting plate 4 is adapted to the baffle 14. The connecting plate 4 of the L-shaped baffle 14 serves as a connector for connecting the steel support 1 and the concrete frame node, which simplifies the steel support-concrete frame connection node structure, reduces the influence of the traditional embedded steel connection scheme on the node force performance, and has a clear force transmission method.

[0032] like Figure 3 As shown, a groove 15 is provided on the upper surface of the support plate 5, and bolt holes 16 are evenly distributed in the circumferential direction of the groove 15. A mounting plate 17 is provided at the bottom of the steel support 1, and the mounting plate 17 is installed in the groove 15 and matched with the groove 15. Bolts matched with the bolt holes 16 are provided on the mounting plate 17.

[0033] like Figure 4 As shown, the mounting plate 17 at the bottom of the steel support 1 is installed in the groove 15 by bolts. The groove 15 provides positioning for the installation of the steel support 1, which facilitates the installation of the steel support 1. The center line of the steel support 1 and the center line of the support plate 5 are located on the same straight line, and the force transmission is clear.

[0034] The inner side of the extension plate 3 is provided with studs 9, which are located in the concrete of the concrete beam 8 and the concrete column 2. The support plate 5 is welded to the extension plate 3, and the extension plate 3 is welded to the top column 6, which is respectively perpendicular to the concrete beam 8 and the concrete column 2. The extension plate 3 and the top column 6 improve the structural stability of the connection node and the bearing capacity.

[0035] The vertical plate 11 and the horizontal plate 12 are welded vertically, and the two ends of the inclined plate 13 are welded to one end of the vertical plate 11 and the horizontal plate 12 respectively. The vertical plate 11, the inclined plate 13, and the horizontal plate 12 form an isosceles triangle. A vertical support plate 10 is provided at the inner center of the inclined plate 13, and one end of the support plate 10 is welded to the connection between the vertical plate 11 and the horizontal plate 12. The upper surface of the inclined plate 13 is provided with a mounting groove corresponding to the steel support 1, and the top of the steel support 1 is bolted to the inside of the mounting groove. The mounting groove on the upper surface of the inclined plate 13 is consistent with the structure of the groove 15 on the support plate 5, and the top structure of the steel support 1 is consistent with the bottom structure of the steel support 1. The top of the steel support 1 is also threadedly connected to the mounting groove through the bolts on the mounting plate 17. The two ends of the steel support 1 are fixed under the cooperation of the groove 15 and the mounting groove, so that the steel support 1 is installed on the concrete frame. The triangular connector is simple to process, has strong structural stability, and high bearing capacity. The mounting groove on the inclined plate 13 is limited for the installation of the top of the steel support 1, which is convenient for determining the position of the steel support 1. The inner side of the horizontal plate 12 is provided with studs 9 , which are located in the concrete of the concrete beam 8 .

[0036] When in use, first embed the connector 1 and the connector 2 in the concrete of the concrete frame according to the construction plan. When installing the steel support 1, it is only necessary to bolt the upper and lower ends of the steel support 1 to the installation groove on the inclined plate 13 and the groove 15 on the support plate 5, respectively, which reduces the construction difficulty, improves the installation efficiency, and speeds up the project construction progress, with good economic benefits and engineering applicability.

[0037] Therefore, the present invention adopts the above-mentioned connection node between the concrete component and the steel support, and the connection node has strong structural stability, high bearing capacity, clear force transmission, and simple processing, which reduces the construction difficulty, speeds up the installation efficiency of the node, improves the project construction progress, and has good economic benefits and engineering applicability.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A connection node between a concrete member and a steel support, comprising a concrete frame and a steel support fixed between the concrete frame, characterized in that: The steel support is connected to the concrete frame through a connector, the concrete frame includes a concrete beam and a concrete column, two steel supports are provided, the connector includes a connector 1 and a connector 2, the top ends of the two steel supports are respectively connected to the concrete beam through the connector 1, and the bottom ends of the two steel supports are connected to the connection between the concrete beam and the concrete column through the connector 2, the connector 2 includes a support plate, an extension plate, and a top column, the connector 1 includes a vertical plate, a horizontal plate, and an inclined plate, and a mounting plate is provided at the bottom of the steel support; Extension plates parallel to the concrete beam and the concrete column are respectively provided on both sides of the support plate, and top columns are respectively provided at one end of the extension plates, and rotatably connected support plates are provided on the top columns; The vertical plate and the horizontal plate are vertically welded, and the two ends of the inclined plate are respectively welded to one end of the vertical plate and the horizontal plate. The vertical plate, the inclined plate and the horizontal plate form an isosceles triangle. A vertical support plate is provided at the center of the inner side of the inclined plate, and one end of the support plate is welded to the connection between the vertical plate and the horizontal plate. Two connecting plates are provided at the bottom of the support plate, and corresponding baffles are provided at the bottom of the two connecting plates, respectively. A part of the connecting plates is located outside the concrete beam and the concrete column, and a part of the connecting plates is located in the concrete inside the intersection of the concrete beam and the concrete column. The baffle is L-shaped and located in the concrete inside the intersection of the concrete beam and the concrete column; The inner side of the extension plate is provided with bolts, the bolts are located in the concrete of the concrete beam and the concrete column, the support plate is welded to the extension plate, the extension plate is welded to the top column, the top column is perpendicular to the concrete beam and the concrete column respectively, the support plate is connected with the steel support bolts, and the shape of the support plate is adapted to the shape of the steel support surface; The upper surface of the inclined plate is provided with a mounting groove corresponding to the steel support, and the top of the steel support is connected with bolts inside the mounting groove.

2. A connection node between a concrete member and a steel support member according to claim 1, characterized in that: The upper surface of the support plate is provided with a groove, the inner circumference of the groove is provided with bolt holes evenly distributed, the mounting plate is installed in the groove and matched with the groove, and the mounting plate is provided with bolts matched with the bolt holes.

3. A connection node between a concrete member and a steel support member according to claim 1, characterized in that: The inner side of the horizontal plate is provided with studs, which are located in the concrete of the concrete beam.

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