Steel reinforced concrete column for connecting box-shaped steel beams

Abstract

The utility model relates to a steel reinforced concrete column for connecting box-shaped steel beams. Comprising a column body, a box girder reserved section and connecting profile steel, and steel ribs are arranged in the column body; a connecting plate is fixed to one end of the box girder reserved section, the other end of the box girder reserved section is used for being connected with a box-shaped steel beam, and the box girder reserved section extends outwards from the side wall of the column body. The connecting profile steel is fixed between the side wall of the steel rib and the connecting plate, and the connecting profile steel and the connecting plate are embedded in the column body; the connecting profile steel is provided with a first grouting hole used for allowing concrete to penetrate through. The connecting effect of the joint of the box-shaped steel beam and the steel reinforced concrete column can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a steel concrete column used for connecting box-shaped steel beams. Background Art

[0002] With the demand for personalized building shapes and structural stress requirements, steel components are widely used in the construction field due to their advantages such as high strength, light weight, good seismic performance, and easy installation and maintenance. Therefore, the connection between steel structural components and concrete main structures usually becomes the focus of construction.

[0003] The connection between steel beams and steel-concrete columns is usually achieved by welding the steel beams directly to the steel frame inside the steel-concrete column, but this method is limited to the applicable cross-sectional forms of the steel beams. If the steel beam is a box-shaped steel beam, that is, a beam structure with a quadrilateral cross-section, when pouring concrete around the steel frame to form the steel-concrete column, the concrete cannot be poured into the box-shaped steel beam, which causes a gap to form in the steel-concrete column at the box-shaped steel beam, thereby affecting the local pressure-bearing performance of the steel-concrete column and causing structural safety hazards. Utility Model Content

[0004] Based on the above description, the utility model provides a steel-concrete column for connecting a box-type steel beam, so as to solve the problem of weak bearing capacity at the connection between the box-type steel beam and the steel-concrete column.

[0005] The utility model solves the above technical problems with the following technical solutions: A steel-concrete column for connecting box-shaped steel beams comprises:

[0006] A column, wherein a steel frame is arranged inside the column;

[0007] A box beam reserved section, wherein a connection plate is fixed at one end of the box beam reserved section and the other end is used for connection with a box-shaped steel beam, and the box beam reserved section extends outward from the side wall of the column;

[0008] Connecting steel, the connecting steel is fixed between the steel frame side wall and the connecting plate, and the connecting steel and the connecting plate are buried in the column;

[0009] The connecting steel is provided with a first grouting hole for concrete to pass through.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, the connecting steel includes a longitudinal web and transverse wing plates arranged at both ends of the longitudinal web, and the opposite side walls of the two transverse wing plates are fixed with first extended ribs, and the first extended ribs are fixed to the connecting plate, steel frame and transverse wing plates at the same time, and the first extended ribs are parallel to the longitudinal web plate surface.

[0012] Furthermore, the transverse wing panel includes a left wing panel and a right wing panel, and the left wing panel and the right wing panel are symmetrically arranged on both sides of the longitudinal web, and a first angle is formed between the left wing panel and the longitudinal web, and a second angle is formed between the right wing panel and the longitudinal web, and the first angle and the second angle are both less than 60°.

[0013] Furthermore, the steel frame is an I-beam, including an upper flange plate, a lower flange plate and a web plate, and stiffening plates are provided on both sides of the web plate. The stiffening plates are fixed to the upper flange plate, the lower flange plate and the web plate at the same time, and the stiffening plates are perpendicular to the web plate surface.

[0014] Furthermore, the stiffening plate surface is provided with one or more second grouting holes.

[0015] Furthermore, a plurality of stiffening plates are arranged on the same side of the web, and a second extending rib is arranged on the side wall opposite to the stiffening plate, and the second extending rib is arranged parallel to and spaced from the web.

[0016] Furthermore, the transverse wing plate and the stiffening plate are aligned with the upper surface elevation or the lower surface elevation of the reserved section of the box beam.

[0017] Furthermore, the peripheral sides of the connecting plate extend out of the side walls of the reserved section of the box beam;

[0018] A steel frame is also provided in the column, and the steel frame includes longitudinal bars located at the connecting steel, and the longitudinal bars are disconnected and fixed to the connecting plate by welding.

[0019] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0020] 1. The utility model connects the reserved section of the box beam with the steel frame by setting a connecting steel, so that the reserved section of the box beam does not extend into the interior of the column. When pouring concrete in the column, it is not easy to form a concrete pouring gap in the column due to the setting of the box-shaped steel beam, thereby reducing the influence of the connection between the box-shaped steel beam and the steel frame on the quality of concrete pouring in the column;

[0021] 2. Open the first grouting hole on the transverse wing plate and the second grouting hole on the stiffening plate to facilitate the concrete to pass through the connecting steel and be poured to the bottom of the column, so that the concrete in the column can be poured densely;

[0022] 3. The connecting steel is set to a structure including a longitudinal web and a transverse flange. At the same time, fixing the stiffening plate on the steel frame can strengthen the connection stability between the reserved section of the box beam and the steel frame, and at the same time improve the ability of the connecting steel to resist bending moment, shear force and torque, so that the load on the box beam can be smoothly transferred to the column after the later construction and installation of the box beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the overall structure of the steel-concrete column provided in the embodiment of the utility model after the construction is completed;

[0024] Figure 2 This is a schematic diagram of the overall structure before the steel bar skeleton is tied in the embodiment of the utility model;

[0025] Figure 3 This is an exploded structural diagram of the steel-concrete column structure in the embodiment of the utility model;

[0026] Figure 4 It is a structural schematic diagram of the embodiment of the utility model when the connecting steel is provided with a left wing plate and a right wing plate;

[0027] Figure 5 It is a schematic diagram of the overall structure after the reinforcement skeleton and the connection steel are welded in the embodiment of the utility model;

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1. Column; 11. Steel frame; 111. Upper flange plate; 112. Lower flange plate; 113. Web plate; 2. Box girder reserved section; 21. Connecting plate; 3. Connecting steel; 31. Longitudinal web plate; 32. Transverse flange plate; 321. First grouting hole; 322. Left flange plate; 323. Right flange plate; 33. First extended rib plate; 4. Stiffening plate; 41. Second grouting hole; 42. Second extended rib plate; 5. Steel skeleton. DETAILED DESCRIPTION

[0030] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0032] It should be noted that when an element is considered to be “connected to” another element, it can be directly connected to the other element or connected to the other element through an intervening element.

[0033] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0034] Refer to the attached Figures 1 to 5 As shown, the utility model provides a technical solution: a steel-concrete column for connecting a box-shaped steel beam comprises a column body 1, a box beam reserved section 2 and a connecting steel 3, wherein the connecting steel 3 is used to connect the column body 1 and the box beam reserved section 2. Specifically, the column body 1 comprises an internal steel frame 11, and in the embodiment of the present application, the steel frame 11 is an I-beam, and in other embodiments, the steel frame 11 may also select other structural forms according to construction requirements.

[0035] Reference Figure 2 A connection plate 21 is fixed at one end of the reserved section 2 of the box beam, and the connection plate 21 can be a steel plate. One end of the connection steel 3 is fixedly connected to the side wall of the steel frame 11, and the other end is fixedly connected to the connection plate 21. In the embodiment of the present application, the connection steel 3 is preferably fixed to the steel frame 11 and the connection plate 21 by full welding, and the welds of the connection are all first-level full penetration welds.

[0036] Reference Figure 2 and Figure 3 The connecting steel 3 includes a longitudinal web 31 and transverse flanges 32 arranged at both ends of the longitudinal web 31, so that the connecting steel 3 is in the shape of an H-shaped steel as a whole. Through the structural shape design of the connecting steel 3, the connection between the reserved section 2 of the box beam and the steel frame 11 can resist larger bending moment and shear force, and the force bearing performance and force transmission effect are better.

[0037] Further, see Figure 2 and Figure 3 A plurality of first grouting holes 321 are provided on the transverse wing plate 32, and the diameter of the first grouting holes 321 is not less than 100 mm. By providing the first grouting holes 321, when pouring concrete of the column 1, the concrete can smoothly pass through the connecting steel 3 and be poured to the bottom of the column 1.

[0038] In another embodiment, referring to Figure 4The transverse wing plate 32 includes a left wing plate 322 and a right wing plate 323. The left wing plate 322 and the right wing plate 323 are symmetrically arranged on both sides of the longitudinal web 31, and a first angle α1 is formed between the left wing plate 322 and the longitudinal web 31, and a second angle α2 is formed between the right wing plate 323 and the longitudinal web 31. The first angle α1 and the second angle α2 are both less than 60°. By tilting the left wing plate 322 and the right wing plate 323, the left wing plate 322 and the right wing plate 323 can guide the concrete poured into the column 1, so that the concrete can pass through the connecting steel 3 more smoothly to reach the bottom of the column 1, and it is not easy to be blocked at the connecting steel 3. In this embodiment, the first grouting hole 321 can be opened on the left wing plate 322 and the right wing plate 323 respectively.

[0039] The steel frame 11 structure in the steel-concrete column of the present application is prefabricated and formed in the factory, and the box beam reserved section 2 is connected to the side wall of the steel frame 11 through the connecting steel 3 when it leaves the factory. During on-site construction, after the steel skeleton 5 is tied around the steel frame 11 and the formwork is supported, concrete is poured around the steel frame 11 to form a steel-concrete column. Due to the provision of the connecting steel 3, the box beam reserved section 2 can extend outward from the side wall of the column 1, so that the box beam reserved section 2 is not poured inside the column 1; in addition, because the connecting steel 3 includes a longitudinal web 31 and a transverse wing plate 32, the concrete can pass through the connecting steel 3 and wrap the connecting steel 3 in the concrete, thereby reducing the impact of the installation of the box steel beam on the concrete pouring in the column 1. After the construction of the column 1 is completed, the construction of the box steel beam can be completed by welding the box steel beam at the end of the box beam reserved section 2 away from the column 1.

[0040] Further, see Figure 2 and Figure 3 The first extension ribs 33 are fixed to the opposite side walls of the two transverse flanges 32. After the first extension ribs 33 are fixed to the transverse flanges 32, an L-shaped cross section is formed. The first extension ribs 33 are fixed to the connecting plate 21, the steel frame 11 and the transverse flanges 32 at the same time, and the first extension ribs 33 and the longitudinal web 31 are parallel. The first extension ribs 33 can enhance the torque resistance of the connecting steel 3, so that the bearing capacity of the connection between the box-shaped steel beam and the steel frame 11 is better.

[0041] In the embodiments of this application, refer to Figure 2 and Figure 3The steel frame 11 is an I-beam, specifically including an upper flange plate 111, a lower flange plate 112 and a web plate 113. Stiffening plates 4 are arranged on both sides of the web plate 113. The stiffening plates 4 are arranged horizontally, and the stiffening plates 4 are fixed to the upper flange plate 111, the lower flange plate 112 and the web plate 113 at the same time. At the same time, the stiffening plates 4 are perpendicular to the plate surface of the web plate 113. The stiffening plates 4 are arranged to make the steel frame 11 more capable of resisting the bending moment and torque force transmitted by the box-type steel beam. It is preferred that the stiffening plates 4, the transverse flange plates 32 and the upper web plate 113 or the lower web plate 113 of the reserved section 2 of the box beam are on the same horizontal plane to achieve better force transmission.

[0042] In order to reduce the influence of the stiffening plate 4 on the pouring of concrete in the column 1, a second grouting hole 41 is further opened on the surface of the stiffening plate 4, and the diameter of the second grouting hole 41 is also not less than 100 mm.

[0043] Further, see Figure 2 and Figure 3 , multiple stiffening plates 4 can be arranged on the same side of the web 113. The embodiment of the present application takes the arrangement of two stiffening plates 4 as an example. The opposite side walls of the stiffening plates 4 are provided with second extended ribs 42. The second extended ribs 42 are arranged parallel to the web 113 and spaced apart. The second extended ribs 42 and the stiffening plates 4 together form an L-shaped cross-section. The second extended ribs 42 are also arranged to improve the torque resistance of the steel frame 11.

[0044] During the specific production and construction of the steel-concrete column structure of the present application, the overall structure of the steel frame 11, the connecting steel 3 and the box beam reserved section 2 is first manufactured in the factory according to the design drawings, wherein the cross-section of the box beam reserved section 2 is consistent with the cross-section of the box steel beam, and the length of the box beam reserved section 2 is highly consistent with the cross-section of the box steel beam.

[0045] Reference Figure 5 After being transported to the site, a steel skeleton 5 is tied around the steel frame 11. The steel skeleton 5 includes longitudinal bars, which are disconnected at the connecting steel 3, and the longitudinal bars are welded and fixed to the connecting steel 3 on both sides; then a formwork is set up, concrete is poured into the formwork and vibrated to form a column 1; finally, the box-type steel beam is welded to the end of the reserved section 2 of the box beam to complete the construction of the box-type steel beam.

[0046] Compared with the traditional method of directly welding the box steel beam to the steel frame 11 in the steel concrete column, the present application provides a connecting steel 3 to solve the safety hazard of the box steel beam forming a cavity in the beam-column node area; the box steel beam is reliably connected to the steel frame 11 in the steel concrete column by the connecting steel 3, which can effectively transfer the shear force and bending moment at the end of the box steel beam to the steel concrete column, ensure the rigid connection between the box steel beam and the steel concrete column, and improve the safety and reliability of the structure; the overall steel frame 11 of the connection node is manufactured in the factory, which not only meets the design concept of strong nodes and weak components, but also facilitates on-site construction and improves economic benefits.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel-concrete column for connecting box-shaped steel beams, characterized in that: include: A column (1), wherein a steel frame (11) is arranged inside the column (1); A box beam reserved section (2), wherein a connection plate (21) is fixed at one end of the box beam reserved section (2), and the other end is used for connection with a box-shaped steel beam, and the box beam reserved section (2) extends outward from the side wall of the column (1); A connecting steel (3), wherein the connecting steel (3) is fixed between the side wall of the steel frame (11) and the connecting plate (21), and the connecting steel (3) and the connecting plate (21) are buried in the column (1); The connecting steel (3) is provided with a first grouting hole (321) for concrete to pass through.

2. A steel-concrete column for connecting box-shaped steel beams according to claim 1, characterized in that: The connecting steel (3) comprises a longitudinal web (31) and transverse wing plates (32) arranged at both ends of the longitudinal web (31), and first extension ribs (33) are fixed to opposite side walls of the two transverse wing plates (32), and the first extension ribs (33) are fixed to the connecting plate (21), the steel frame (11) and the transverse wing plates (32) at the same time, and the first extension ribs (33) are parallel to the plate surface of the longitudinal web (31).

3. A steel-concrete column for connecting box-shaped steel beams according to claim 2, characterized in that: The transverse wing plate (32) includes a left wing plate (322) and a right wing plate (323), wherein the left wing plate (322) and the right wing plate (323) are symmetrically arranged on both sides of the longitudinal web (31), and a first angle is formed between the left wing plate (322) and the longitudinal web (31), and a second angle is formed between the right wing plate (323) and the longitudinal web (31), and the first angle and the second angle are both less than 60°.

4. The steel-concrete column for connecting box-shaped steel beams according to claim 2, characterized in that: The steel frame (11) is an I-beam, comprising an upper flange plate (111), a lower flange plate (112) and a web plate (113), and stiffening plates (4) are arranged on both sides of the web plate (113). The stiffening plates (4) are fixed to the upper flange plate (111), the lower flange plate (112) and the web plate (113) at the same time, and the stiffening plates (4) are perpendicular to the plate surface of the web plate (113).

5. The steel-concrete column for connecting box-shaped steel beams according to claim 4, characterized in that: The stiffening plate (4) is provided with one or more second grouting holes (41) on its surface.

6. The steel-concrete column for connecting box-shaped steel beams according to claim 4, characterized in that: A plurality of stiffening plates (4) are arranged on the same side of the web (113), and a second extending rib (42) is arranged on the side wall opposite to the stiffening plate (4). The second extending rib (42) is arranged parallel to and spaced from the web (113).

7. The steel-concrete column for connecting box-shaped steel beams according to claim 4, characterized in that: The transverse wing plate (32) and the stiffening plate (4) are aligned with the upper surface elevation or the lower surface elevation of the reserved section (2) of the box beam.

8. The steel-concrete column for connecting box-shaped steel beams according to claim 1, characterized in that: The peripheral sides of the connecting plate (21) all extend out of the side walls of the reserved section (2) of the box beam; A steel frame (5) is also provided in the column (1), and the steel frame (5) includes longitudinal bars located at the connecting steel (3), and the longitudinal bars are disconnected and welded to the connecting plate (21).

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