Semi-combined prefabricated L-shaped special-shaped column and connecting joint thereof

Abstract

The utility model discloses a semi-combined prefabricated L-shaped special-shaped column and a connecting joint thereof, relates to the technical field of fabricated buildings, and aims to solve the problems that in the prior art, a pure steel special-shaped column is unclear in stress mechanism and prone to instability and damage, and adopts the technical scheme that a connecting section is arranged between an upper combined column and a lower combined column; the upper combination column comprises an upper L-shaped special-shaped column and upper L-shaped concrete, the lower combination column comprises a lower L-shaped special-shaped column and lower L-shaped concrete, the middle L-shaped concrete is arranged in the connecting section, the upper L-shaped special-shaped column is fixedly connected with the lower L-shaped special-shaped column, a stud is arranged on the inner side of the lower L-shaped special-shaped column, the upper L-shaped concrete is poured into the upper L-shaped special-shaped column, and the lower L-shaped concrete is poured into the lower L-shaped special-shaped column. The lower L-shaped concrete is poured into the lower L-shaped special-shaped column, the H-shaped steel beam is fixedly connected to a flange of the lower L-shaped special-shaped column, the concrete of the L-shaped special-shaped column has a restraining effect, so that the compressive strength of the concrete is enhanced, and the concrete provides out-of-plane support for the L-shaped special-shaped column, so that the L-shaped special-shaped column is not stably damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled buildings, in particular to a semi-assembled prefabricated L-shaped special-shaped column and a connection node thereof. Background Art

[0002] With the increasing demand for residential quality and the vigorous promotion of prefabricated buildings, pure steel special-shaped column structural systems have emerged. However, the stress mechanism of pure steel special-shaped columns is unclear, making them prone to instability and failure. In addition, existing national standards do not reflect the stability calculation method of pure steel special-shaped columns, which limits their application. Therefore, in order to retain the advantages of prefabrication and the advantage of pure steel special-shaped columns as non-convex columns, the present invention proposes a semi-assembled prefabricated L-shaped special-shaped column and its connection node, which semi-assembles the pure steel special-shaped column with concrete. This not only retains the outer shape of the pure steel special-shaped column, but also utilizes the cross-sectional characteristics of concrete to ensure that the special-shaped column does not suffer instability and failure. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a semi-assembled prefabricated L-shaped special-shaped column and its connection node, which can effectively solve the problems in the background technology.

[0004] The slatted bottom edge of the L-shaped steel beam is fixed to the slatted bottom edge of the H-shaped steel beam, and the slatted bottom edge of the L-shaped steel beam is fixed to the slatted bottom edge of the H-shaped steel beam.

[0005] As a preferred technical solution of the present invention, the bolt is used to connect the lower L-shaped special-shaped column and the lower L-shaped concrete into one body, so as to resist and disperse the force transmitted from the H-shaped steel beam.

[0006] As a preferred technical solution of the present invention, a first bolt hole is opened on the web of the upper L-shaped special-shaped column, and a second bolt hole is opened on the web of the lower L-shaped special-shaped column. The connecting section includes a column connecting plate, and the column connecting plate is located between the upper L-shaped special-shaped column and the lower L-shaped special-shaped column. The upper L-shaped special-shaped column is connected to the lower L-shaped special-shaped column through the first bolt hole, the second bolt hole, the column connecting plate and the bolt, so that the upper L-shaped special-shaped column and the lower L-shaped special-shaped column are preliminarily fixed, preparing for subsequent welding and reducing the difficulty of welding.

[0007] As an optimal technical solution of the present invention, the cross-section of the lower L-shaped special-shaped column flange is fixedly connected to the first welding lining, and the cross-section of the upper L-shaped special-shaped column flange is provided with a first groove, and a weld is formed between the first groove and the first welding lining. The first welding lining is used to align the lower L-shaped special-shaped column flange and the L-shaped special-shaped column flange to improve welding stability.

[0008] As an optimal technical solution of the present invention, the flange surface of the lower L-shaped special-shaped column is fixed with a connecting beam connecting plate, and the web plate of the H-shaped steel beam is provided with a third bolt hole. The H-shaped steel beam is connected to the lower L-shaped special-shaped column through the beam connecting plate, the third bolt hole and the bolt, so that the H-shaped steel beam and the lower L-shaped special-shaped column are preliminarily fixed to prepare for subsequent welding and reduce the difficulty of welding. A second welding lining plate is fixedly connected to the flange of the lower L-shaped special-shaped column at the relative position of the flange of the H-shaped steel beam, and a second groove is provided at the cross-section of the flange of the H-shaped steel beam. There is a weld between the second welding lining plate and the second groove to form a connection node.

[0009] The L-shaped column is preferably a hollow structure, and the L-shaped column is preferably a hollow structure, and the L-shaped column is preferably a hollow structure. The L-shaped column is preferably a hollow structure, and the L-shaped column is preferably a hollow structure. The L-shaped column is preferably a hollow structure, and the L-shaped column is preferably a hollow structure. The L-shaped column is preferably a hollow structure, and the L-shaped column is preferably a hollow structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of the utility model;

[0011] Figure 2 This is a separate exploded diagram of the utility model;

[0012] Figure 3This is a structural diagram of the column connecting plate of the utility model;

[0013] Figure 4 This is a structural diagram of the beam connecting plate of the utility model.

[0014] In the figure: 1. Upper composite column; 2. Lower composite column; 3. Connection section; 4. H-shaped steel beam; 5. Upper L-shaped special-shaped column; 6. Upper L-shaped concrete; 7. Lower L-shaped special-shaped column; 8. Lower L-shaped concrete; 9. Column connecting plate; 10. Middle L-shaped concrete; 11. First bolt hole; 12. First groove; 13. Second bolt hole; 14. First welded lining; 15. Beam connecting plate; 16. Second welded lining; 17. Stud; 18. Third bolt hole; 19. Second groove. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0016] like Figures 1 to 4 As shown, the utility model discloses a semi-combined prefabricated L-shaped special-shaped column and its connection node, which adopts the technical solution of comprising an upper composite column 1, wherein a lower composite column 2 is located below the upper composite column 1, wherein the upper composite column 1 and the lower composite column 2 are connected by a connecting section 3, wherein the upper composite column 1 comprises an upper L-shaped special-shaped column 5 and an upper L-shaped concrete 6, wherein the lower composite column 2 comprises a lower L-shaped special-shaped column 7 and a lower L-shaped concrete 8, wherein the connecting section 3 comprises a column connecting plate 9 and a middle L-shaped concrete 10, wherein the upper L-shaped concrete 6 is cast and wrapped on both sides of the web of the upper L-shaped special-shaped column 5, wherein the lower L-shaped concrete 8 is cast and wrapped on both sides of the web of the lower L-shaped special-shaped column 7, wherein the middle L-shaped Concrete 10 is poured and wrapped on both sides of the column connecting plate 9. A first bolt hole 11 is opened on the bottom web of the upper L-shaped special-shaped column 5, and a second bolt hole 13 is opened on the web of the lower L-shaped special-shaped column 7. The upper L-shaped concrete 6 is fixed to the lower L-shaped special-shaped column 7 through the first bolt hole 11, the second bolt hole 13, the column connecting plate 9 and the bolts. A first welding lining plate 14 is welded at the cross-section flange of the lower L-shaped special-shaped column 7. A first groove 12 is opened at the cross-section flange of the upper L-shaped special-shaped column 5. The upper L-shaped special-shaped column 5 is clamped onto the first welding lining plate 14 and welded and fixed between the first groove 12 and the flange of the lower L-shaped special-shaped column 7.

[0017] As an optimal technical solution of the present invention, a bolt 17 is provided on the web of the lower L-shaped special-shaped column 7, and the bolt 17 extends into the interior of the lower L-shaped concrete 8. A fixed beam connecting plate 15 is welded on the outer flange of the lower L-shaped special-shaped column 7, and the fixed beam connecting plate 15 is fixedly connected to the H-shaped steel beam 4. A third bolt hole 18 is opened on the web of the H-shaped steel beam 4, and the H-shaped steel beam 4 is fixed to the lower L-shaped special-shaped column 7 through the third bolt hole 18, the beam connecting plate 15 and the bolt. A second welding lining plate 16 is welded and fixed on the flange of the lower L-shaped special-shaped column 7 at the flange position of the H-shaped steel beam 4, and a second groove 19 is provided on the flange section of the H-shaped steel beam 4. The flange of the H-shaped steel beam 4 is clamped to the second welding lining plate 16 and welded and fixed between the second groove 19 and the flange of the lower L-shaped special-shaped column 7.

[0018] The working principle of the present invention is as follows: after on-site survey and size calculation, the upper L-shaped concrete 6 is poured on the upper L-shaped special-shaped column 5 prefabricated in the factory, and the first bolt hole 11 is not poured, the lower L-shaped concrete 8 is poured on the lower L-shaped special-shaped column 7, and the second bolt hole 13 is not poured, and the cast and solidified upper L-shaped special-shaped column 5 and the lower L-shaped special-shaped column 7 are transported to the construction site, and the upper L-shaped special-shaped column 5 and the lower L-shaped special-shaped column 7 are preliminarily fixed at the construction site by the column connecting plate 9 and the bolts through the first bolt hole 11 and the second bolt hole 13, and the first groove 12, the first welding lining plate 14 and the lower L-shaped special-shaped column 7 are welded together to completely fix them, and the middle L-shaped concrete 10 is poured at the column connecting plate 9 as shown in FIG. Figure 3 As shown, the H-shaped steel beam 4 and the lower L-shaped special-shaped column 7 are preliminarily fixed through the third bolt hole 18, the beam connecting plate 15 and the bolts, and then the second groove 19, the second welding lining plate 16 and the outer flange of the lower L-shaped special-shaped column 7 are welded to completely fix them, thereby forming a connection node.

[0019] The mechanical connection involved in the present invention is a common means used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments, which belongs to common knowledge.

[0020] Components not described in detail herein are prior art.

[0021] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A semi-assembled prefabricated L-shaped special-shaped column and its connection node, characterized by: The invention comprises an upper composite column (1) and a lower composite column (2), wherein the upper composite column (1) is located above the lower composite column (2), a connecting section (3) is provided between the upper composite column (1) and the lower composite column (2), the upper composite column (1) comprises an upper L-shaped special-shaped column (5) and an upper L-shaped concrete (6), the lower composite column (2) comprises a lower L-shaped special-shaped column (7) and a lower L-shaped concrete (8), a middle L-shaped concrete (10) is provided inside the connecting section (3), the upper L-shaped special-shaped column (5) is connected and fixed to the lower L-shaped special-shaped column (7) by bolts, a bolt (17) is provided on the inner side of the lower L-shaped special-shaped column (7), the upper L-shaped concrete (6) is poured into the inner side of the upper L-shaped special-shaped column (5), the lower L-shaped concrete (8) is poured into the inner side of the lower L-shaped special-shaped column (7), and the flange of the lower L-shaped special-shaped column (7) is fixedly connected to the H-shaped steel beam (4) by bolts.

2. A semi-assembled prefabricated L-shaped special-shaped column and its connection node according to claim 1, characterized in that: A first bolt hole (11) is provided on the web of the upper L-shaped special-shaped column (5), and a second bolt hole (13) is provided on the web of the lower L-shaped special-shaped column (7). The connecting section (3) comprises a column connecting plate (9), and the column connecting plate (9) is located between the upper L-shaped special-shaped column (5) and the lower L-shaped special-shaped column (7). The upper L-shaped special-shaped column (5) is connected to the lower L-shaped special-shaped column (7) via the first bolt hole (11), the second bolt hole (13), the column connecting plate (9) and bolts.

3. A semi-assembled prefabricated L-shaped special-shaped column and its connection node according to claim 2, characterized in that: The cross section of the flange of the lower L-shaped special-shaped column (7) is fixedly connected to a first welding lining plate (14), and the cross section of the flange of the upper L-shaped special-shaped column (5) is provided with a first groove (12), with a weld between the first groove (12) and the first welding lining plate (14).

4. The semi-assembled prefabricated L-shaped special-shaped column and its connection node according to claim 3, characterized in that: The flange surface of the lower L-shaped special-shaped column (7) is fixedly connected to the beam connecting plate (15), the web of the H-shaped steel beam (4) is provided with a third bolt hole (18), the H-shaped steel beam (4) is connected to the lower L-shaped special-shaped column (7) through the beam connecting plate (15), the third bolt hole (18) and the bolts, the flange of the lower L-shaped special-shaped column (7) at the relative position of the flange of the H-shaped steel beam (4) is fixedly connected to the second welding lining plate (16), the flange section of the H-shaped steel beam (4) is provided with a second groove (19), and a weld is formed between the second welding lining plate (16) and the second groove (19).

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