Lattice type reinforced steel concrete column

Abstract

The utility model relates to a lattice type reinforced steel concrete column, which belongs to the field of constructional engineering and comprises steel ribs and a concrete body. The steel rib comprises four angle steel column limbs and lacing bars or lacing plates; the vertex angles of the four angle steel column limbs face inwards and are orthogonally arranged, and the lacing bars or the lacing plates are fixedly connected between every two adjacent angle steel column limbs; the concrete column body comprises column longitudinal bars, column stirrups and concrete; the concrete is poured among the column longitudinal bars, the column stirrups and the steel ribs; the steel reinforced concrete column not only can be connected with an orthogonal beam, but also can be firmly connected with a skew beam, and the problems of insufficient anchoring and difficult construction caused by steel bar conflict between an existing structural steel reinforced concrete column and a reinforced concrete beam are solved. In addition, the steel rib designed by the utility model is not only suitable for a steel rib concrete column with a square cross section, but also has universality for concrete columns with cross sections in other shapes, such as a round shape, an oval shape and the like.

Description

Technical Field

[0001] The utility model belongs to the field of construction engineering, and specifically relates to a lattice stiffened concrete column. Background Art

[0002] At present, the internal steel shapes of steel reinforced concrete columns mostly adopt solid web steel shapes. The cross-section of the steel shape is generally cruciform or I-shaped. The beams connected thereto generally need to be internally provided with steel shapes, and the beam steel shapes are welded to the column steel shapes, resulting in excessive steel consumption of the beams. When the beam connected to the column steel shape adopts a common reinforced concrete beam, it is necessary to weld a node plate, or a reinforcing bar sleeve, or to open holes in the web on the steel shape of the concrete column. In these ways, the node plate and the beam jointly occupy space. Especially when the number of beam reinforcing bars is large, it will cause difficulties in concrete pouring, incomplete vibration, and at the same time, it is easy to occur that the beam reinforcing bars fight in all directions and fight with the column reinforcing bars, affecting the structural quality. Especially for beams with large forces, the number of reinforcing bars is more and the construction is more difficult. Opening holes in the web not only increases the process, but also is difficult to ensure the construction quality; at the same time, if too many holes are opened in the web to ensure that the beam reinforcing bars pass through, the steel shape cross-section will be greatly weakened, resulting in a great reduction in bearing capacity. If too many reinforcing bar sleeves are welded, the residual stress of the steel shape will be greatly increased. The above will all cause the internal force of the steel shape to become extremely complex and there are great potential safety hazards. In addition, conventional steel shape columns are generally only applicable to square columns and can only be orthogonal to the beams. For skewed beams, since the beam reinforcing bars are skewed to the steel shape in the concrete column, and at the same time, the web and flange of the steel shape are both connected to the beam reinforcing bars, the reinforcing bar rooting points are complex, and the anchorage is insufficient and the construction is difficult.

[0003] Moreover, in some lattice steel shape columns, the steel shape has a square cross-section, which is only applicable to square cross-section columns and not applicable to circular cross-section columns, with poor versatility. And there is no bonding measure between the conventional steel shape cross-section and the concrete, resulting in difficulties in concrete pouring of the column, too many hidden positions, difficult vibration, and often problems such as voids. At the same time, the steel shape is concentrated in the middle of the column, resulting in strong bearing capacity at the center position of the column and weak bearing capacity at the surrounding, and uneven stress. Summary of the Invention

[0004] In order to overcome the problems existing in the background art, the utility model provides a lattice stiffened concrete column, which can not only be connected to orthogonal beams, but also can be firmly connected to skewed beams, overcoming the problems of insufficient anchorage and difficult construction caused by insufficient rooting points of the existing structural steel reinforced concrete columns and skewed beams. In addition, the steel shape designed by the utility model is not only applicable to steel reinforced concrete columns with square cross-sections, but also has universality for concrete columns with other shapes such as circular and elliptical cross-sections.

[0005] To achieve the above object, the utility model is realized by the following technical solutions:

[0006] The described lattice stiffened steel reinforced concrete column includes a steel skeleton; the steel skeleton includes four angle steel column limbs and lacing bars or batten plates; the top corners of the four angle steel column limbs face inwards and are orthogonally arranged, and the lacing bars or batten plates are fixedly connected between two adjacent angle steel column limbs.

[0007] Preferably, two adjacent upper and lower angle steel column limbs are connected by a splicing member; the splicing member includes two splicing lugs and a connecting plate; the two splicing lugs are respectively fixed at the opposite ends of two adjacent upper and lower angle steel column limbs, and the connecting plate is connected between the two splicing lugs.

[0008] Preferably, the connecting plate is bolted to the connecting lug.

[0009] Preferably, the lattice stiffened steel reinforced concrete column further includes a column base plate and column base bolts; the column base plate is welded to the bottom ends of the four angle steel column limbs, and stiffening ribs are welded between the column base plate and the angle steel column limbs; the column base plate is anchored to the foundation through the column base bolts.

[0010] Preferably, stud bolts are arranged on the outer sides of the two wings of the angle steel column limb; the length of the stud bolts is not less than 100 mm, and the vertical spacing between the stud bolts does not exceed 250 mm.

[0011] Preferably, the lacing bars are made of angle steel with a side length of not less than 50 mm, the batten plates are made of steel plates with a width of not less than 50 mm, and the lacing bars or batten plates are obliquely welded between two adjacent angle steel column limbs.

[0012] Preferably, the lattice stiffened steel reinforced concrete column further includes a concrete column body; the concrete column body includes column longitudinal bars, column stirrups and concrete; the column longitudinal bars are arranged around the four angle steel column limbs, the column stirrups surround the column longitudinal bars and tie the longitudinal bars on the opposite sides to form composite stirrups; the column longitudinal bars, column stirrups and steel skeleton form a concrete pouring skeleton.

[0013] Preferably, the distance between the edge of the angle steel column limb and the edge of the concrete is not less than 150 mm.

[0014] The beneficial effects of the present utility model:

[0015] The present utility model generally sets four angle steel column limbs with top corners facing inwards and orthogonally arranged as the main components of the steel skeleton of the reinforced concrete column. Since there is enough space between the four angle steel column limbs to avoid steel bars, when connecting the column with the reinforced concrete beam, it is not necessary to additionally weld a joint plate or a steel bar sleeve on the steel skeleton or open holes in the web, and the connection between the column and the beam can be realized, solving the problems such as difficult pouring and incomplete vibration caused by a large number of steel bars at the connection node between the beam and the column in the existing structure; at the same time, the structural design of the four angle steel column limbs of the present utility model does not affect the setting of the column longitudinal bars and column stirrups, which is beneficial to both the pouring of concrete and the uniform distribution of internal forces, and the steel skeleton and concrete are well embedded.

[0016] The steel reinforced concrete column of the present utility model can not only be adapted to connect with orthogonal beams, but also can be firmly connected with skew beams, overcoming the problems of insufficient anchorage and construction difficulties caused by the lack of sufficient rooting points between the existing steel reinforced concrete columns and skew beams.

[0017] The steel skeleton of the present utility model is not only suitable for steel reinforced concrete columns with square cross-sections, but also has universality for concrete columns with other shapes such as circular and elliptical cross-sections.

[0018] The angle steel column limbs of the present utility model are convenient for factory processing, and at the same time can be disassembled into small components, which can be spliced on the construction site, transported flexibly, have a wide adaptability, reduce transportation costs, and are also convenient for hoisting. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a top view of the connection relationship between the angle steel column limb and the batten or batten plate of the present utility model;

[0020] Figure 2 is a side view of the steel skeleton structure of the present utility model;

[0021] Figure 3 is a side view of the connection relationship between the angle steel column limb and the splicing member of the present utility model;

[0022] Figure 4 is a top view of the connection relationship between the angle steel column limb and the splicing member of the present utility model;

[0023] Figure 5 is a partial enlarged view of the connection relationship between the angle steel column limb and the splicing member of the present utility model;

[0024] Figure 6 is a top view of the connection relationship between the angle steel column limb and the column base steel plate of the present utility model;

[0025] Figure 7 is a schematic diagram of the connection relationship between the present utility model and the reinforced concrete beam;

[0026] Figure 8 is Figure 7 the 1-1 surface view of

[0027] In the figure, 1 - angle steel column limb, 2 - batten or batten plate, 3 - splicing lug, 4 - connecting plate, 5 - bolt, 6 - column base steel plate, 7 - column base anchor bolt, 8 - stiffening rib, 9 - stud, 10 - column longitudinal reinforcement, 11 - reinforced concrete beam, 12 - concrete, 13 - foundation, 14 - beam longitudinal reinforcement, 15 - beam transverse reinforcement, 16 - grouting vent hole, 17 - column peripheral stirrup. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] To make the objectives, technical solutions, and beneficial effects of the present utility model clearer, the following will, in conjunction with the accompanying drawings, provide a detailed description of the preferred embodiments of the present utility model to facilitate understanding by those skilled in the art.

[0029] In the description of the present utility model, unless otherwise specified, the orientation or positional relationship indicated by terms such as "inner" and "outer" is based on the orientation or positional relationship shown in the accompanying drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present utility model.

[0030] In the description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection", and "provided with" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention should be understood according to specific circumstances.

[0031] As Figures 1-6 shown, the lattice stiffened steel concrete column includes a steel skeleton, a base steel plate 6, column base anchor bolts 7, and a concrete column body.

[0032] The steel skeleton includes four angle steel column limbs 1 and lacing bars or batten plates 2. The angle steel column limbs 1 are welded into an angle steel shape with a steel plate having a thickness of 30 mm - 60 mm. The top angles of the four angle steel column limbs 1 face inward and are orthogonally arranged. The distance between the four angle steel column limbs 1 is determined according to the cross-section of the concrete column body. Generally, the distance from the edge of the angle steel of the steel column limb to the edge of the concrete column is not less than 150 mm. The base steel plate 6 is welded to the bottom ends of the four angle steel column limbs 1. The base steel plate 6 is anchored to the foundation 13 with column base anchor bolts 7. A stiffening rib 8 is welded between the base steel plate 6 and the angle steel column limb 1 to strengthen the connection firmness between the base steel plate 6 and the angle steel column limb 1. The lacing bars or batten plates 2 are welded between two adjacent angle steel column limbs 1. The lacing bars or batten plates 2 serve to connect the respective angle steel column limbs 1 to form a lattice form and enable integral hoisting. The lacing bars are made of angle steel with a side length of not less than 50 mm, and the batten plates are made of steel plates with a width of not less than 50 mm. The lacing bars or batten plates and the angle steel column limb 1 are approximately at 45°. The end edge distance between two adjacent upper and lower lacing bars or batten plates is not less than 0.2 m. The lacing bars are generally made of angle steel. When using lacing bars, the side length dimension of the lacing bar angle steel is not less than 1 / 8 - 1 / 6 of the maximum side length dimension of the angle steel column limb 1, and the wall thickness of the lacing bar is 1 / 4 - 1 / 5 of the wall thickness of the angle steel column limb 1; the batten plates are generally made of steel plates. When using batten plates, the width of the batten plate is 1 / 6 - 1 / 4 of the maximum side length dimension of the angle steel column limb 1, and the thickness of the batten plate is 1 / 3 - 1 / 4 of the wall thickness of the angle steel column limb 1.

[0033] The two adjacent upper and lower angle steel column limbs 1 are connected by splicing pieces, and the splicing pieces include two splicing lugs 3 and a connecting plate 4. The two splicing lugs 3 are respectively fixed at the opposite ends of the two adjacent upper and lower angle steel column limbs 1. Bolt holes are provided on the splicing lugs 3 and the connecting plate 4, and the connecting plate 4 connects the two splicing lugs 3 through bolts 5. A set of splicing pieces are respectively provided on the outer end faces of the two wings of the angle steel column limb 1, as shown in the appendix Figure 4 The utility model can adopt prefabricated construction: the production of the angle steel column limb 1 can be completed in the factory first, and then the welding of the angle steel column limb 1 and the column base steel plate 6, the welding of the batten or batten plate 2 and the angle steel column limb 1, and the connection between the angle steel column limbs 1 through the splicing pieces can be carried out at the construction site, which is more convenient for transportation, reduces transportation costs, is convenient for hoisting at the same time, and has wide adaptability.

[0034] Studs 9 are arranged on the outer side surfaces of the two wings of the angle steel column limb 1. The length of the studs 9 is not less than 100 mm, and the spacing between the studs 9 does not exceed 250 mm. The studs 9 can increase the bonding firmness between the angle steel column limb 1 and the concrete.

[0035] The concrete column body includes column longitudinal bars 10, column stirrups and concrete 12. The column longitudinal bars (10) are arranged around the four angle steel column limbs (1). The column stirrups surround the column longitudinal bars and tie the longitudinal bars on the opposite sides to form composite stirrups, and the peripheral column stirrups 17 are arranged around the outer peripheries of the four angle steel column limbs 1. The concrete 12 is poured between the column longitudinal bars 10, the column stirrups and the four angle steel column limbs 1. By using the four angle steel column limbs 1 with the vertices facing inwards and arranged orthogonally as the main steel components of the reinforced concrete column, since there is enough space between the four angle steel column limbs 1 to avoid the steel bars, the column longitudinal bars 10 and the column stirrups can be arranged between the gaps of the four angle steel column limbs 1 or along the outer peripheries of the four angle steel column limbs 1. It is applicable not only to square-section columns but also to circular-section columns, with strong versatility and more conducive to the pouring of concrete 12. At the same time, the arrangement positions of the four angle steel column limbs 1 are also conducive to the uniform distribution of the internal forces of the reinforced concrete column. At the same time, since there is enough space between the four angle steel column limbs 1, it will not block the laying of the steel bars. When connecting the steel concrete column and the reinforced concrete beam 11, it is not necessary to weld additional gusset plates or steel bar sleeves on the steel skeleton or cut holes in the web to realize the connection between the column and the beam, solving the problems of difficult pouring and poor compaction caused by the large number of steel bars at the connection nodes between the beam and the column in the existing structure. At the same time, since the beam longitudinal bars 14 and the beam transverse bars 15 of the reinforced concrete beam 11 can be effectively connected with the column longitudinal bars 10 and the column stirrups, the structure of the utility model can not only be firmly connected with the orthogonal beam, but also be firmly connected with the skew beam, and the construction is simple, solving the problems of insufficient rooting points, insufficient anchorage and difficult construction when the existing steel reinforced concrete structure is connected with the skew beam. At the same time, the angle steel column limbs are evenly arranged in the concrete column, and the cross-section of the column limb is simple and easy to pour, and the overall stress is uniform and the quality is easy to guarantee.

[0036] Application Example of the Utility Model

[0037] Taking the circular concrete column as an example, the connection relationship between the steel skeleton and the reinforced concrete beam is described as follows.

[0038] As Figure 7 and Figure 8 shown, the longitudinal beam reinforcement 14 and the transverse beam reinforcement 15 can pass through the gap between the four angle steel column limbs 1. Therefore, there is no need to weld a node plate or a steel bar sleeve on the steel skeleton or to open holes in the web. Moreover, the longitudinal beam reinforcement 14 and the transverse beam reinforcement 15 can be welded to the longitudinal column reinforcement 10 and the peripheral column stirrups 17, which increases the firmness of the connection between the column and the beam. Not only that, since the longitudinal beam reinforcement 14 and the transverse beam reinforcement 15 can pass through the gap between the four angle steel column limbs 1, it does not affect the position setting of the longitudinal beam reinforcement 14 and the transverse beam reinforcement 15. Whether it is an orthogonal beam or an oblique beam, it can be firmly connected to the reinforced concrete column, solving the problems of insufficient anchorage and difficult construction caused by the lack of sufficient rooting points between the existing steel skeleton concrete column and the oblique beam.

[0039] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the utility model and not to limit them. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. A lattice steel-concrete column, characterized in that: The invention comprises a steel frame; the steel frame comprises four angle steel column limbs (1) and tie bars or tie plates (2); the top angles of the four angle steel column limbs (1) are inwardly and orthogonally arranged, and the tie bars or tie plates (2) are fixedly connected between two adjacent angle steel column limbs (1).

2. The lattice steel-concrete column according to claim 1, characterized in that: Two upper and lower adjacent angle steel column limbs (1) are connected via a splicing piece; the splicing piece comprises two splicing ears (3) and a connecting plate (4); the two splicing ears (3) are respectively fixed to the opposite ends of the two upper and lower adjacent angle steel column limbs (1), and the connecting plate (4) is connected between the two splicing ears (3).

3. The lattice steel-concrete column according to claim 2, characterized in that: The connecting plate (4) is connected to the connecting lug (3) by bolts.

4. The lattice steel-concrete column according to claim 2, characterized in that: It also includes a column base steel plate (6) and a column base anchor bolt (7); the column base steel plate (6) is welded to the bottom ends of the four angle steel column limbs (1), and a stiffening rib (8) is welded between the column base steel plate (6) and the angle steel column limb (1); the column base steel plate (6) is anchored to the foundation (13) via the column base anchor bolt (7).

5. The lattice steel-concrete column according to claim 1, characterized in that: Bolts (9) are arranged on the outer sides of the two wings of the angle steel column limb (1); the length of the bolts (9) is not less than 100 mm, and the spacing between the bolts (9) does not exceed 250 mm.

6. The lattice steel-concrete column according to claim 1, characterized in that: The tie bars or tie plates (2) are welded obliquely between two adjacent angle steel column limbs (1); the tie bars are made of angle steel with a side length of not less than 50 mm, and the tie plates are made of steel plates with a width of not less than 50 mm.

7. A lattice steel-concrete column according to any one of claims 1 to 6, characterized in that: It also includes a concrete column body; the concrete column body includes column longitudinal bars (10), column stirrups and concrete (12); the column longitudinal bars (10) are arranged around four angle steel column limbs (1), the column stirrups surround the column longitudinal bars (10) and tie the opposite side longitudinal bars to form composite stirrups; the column longitudinal bars (10), column stirrups and steel frame form a casting skeleton of concrete (12).

8. The lattice steel-concrete column according to claim 7, characterized in that: The distance between the edge of the angle steel column limb (1) and the edge of the concrete (12) is not less than 150 mm.

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