An assembled skew beam-column joint

Abstract

The present invention discloses an assembled oblique beam-column node. Most existing beam-column nodes are connected in an orthogonal form, and there are few oblique beam-column nodes. The present invention connects the flange of the oblique short beam to the L-shaped upper connecting plate, the groove-shaped connecting plate, and the L-shaped lower connecting plate in the orthogonal direction of the steel pipe column through an arc-shaped connecting plate; adopts a Y-shaped plate and the oblique short beam to connect, and then connects to the oblique steel beam through the oblique short beam. The present invention allows the bending moment to be transmitted to the orthogonal direction of the steel pipe column, so that the steel pipe column is more evenly stressed, avoiding the steel pipe column corners from yielding first; it can prevent the plastic hinge at the beam end from appearing in the oblique steel beam. After the structure suffers earthquake damage, it can continue to be used by only replacing the Y-shaped plate and the oblique short beam. Moreover, the Y-shaped plate and the oblique short beam are bolted to the structural beam column through the connecting plate, and are highly replaceable.

Description

Technical Field

[0001] The present invention belongs to the technical field of assembled beam-column nodes, and in particular relates to an assembled oblique beam-column node. Background Art

[0002] In recent years, my country's construction scale has consistently ranked among the world's largest. The industrialization, assembly, and intelligentization of the construction industry are becoming increasingly urgent, and the country has also introduced a series of policies to support this trend. Prefabricated structures are rapidly developing and gradually replacing traditional cast-in-place structures due to their advantages, such as resource conservation, reduced construction pollution, ease of installation, minimal on-site welding, shortened construction cycles, and improved labor efficiency and quality safety.

[0003] The beam-column joint is the force transmission hub of the frame structure, and its reliability is crucial to the safety and reliability of the structure. Traditional beam-column joints often have structural beams and structural columns orthogonal to each other, but in some practical engineering fields, beams and columns need to be obliquely intersected to meet structural design requirements.

[0004] According to the current research status at home and abroad, there are some problems and limitations: the current beam-column joints, whether prefabricated or cast-in-place, are mostly connected in an orthogonal form, rarely involving oblique beam-column joints, and the designed joints are complex in form, with poor stress performance, inconvenient installation, and difficult on-site construction. Summary of the Invention

[0005] In order to make up for the shortcomings of the existing technology, the present invention provides a prefabricated oblique beam-column node, which can not only meet the needs of oblique beam-column nodes in actual engineering, but also utilize a series of advantages of prefabricated structures, with novel structural form, simple construction and strong applicability.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] An assembled oblique beam-column node, characterized in that it comprises a square steel tube column, wherein two adjacent side surfaces of the square steel tube column are fixedly connected to an orthogonal steel beam 1 and an orthogonal steel beam 2, and the remaining two adjacent side surfaces are fixedly connected to a Y-shaped plate;

[0008] The Y-shaped plate is Y-shaped and includes two mutually perpendicular right-angled sides and a hypotenuse. The two right-angled sides of the Y-shaped plate are respectively fixedly connected to two adjacent side surfaces of the square steel pipe column; the hypotenuse of the Y-shaped plate is fixedly connected to the web of the oblique short beam through two connecting plates, and the top and bottom surfaces of the web of the oblique short beam are respectively provided with an upper flange and a lower flange;

[0009] One end of the top surface of the upper flange of the oblique short beam is fixedly connected to the upper arc plate, and one end of the bottom surface of the lower flange of the oblique short beam is fixedly connected to the lower arc plate; the other end of the oblique short beam is fixedly connected to the oblique steel beam through eight horizontal connecting plates and two vertical connecting plates;

[0010] The two ends of the top surface of the upper arc-shaped plate are respectively fixedly connected with L-shaped upper connecting plates, and the other right-angled sides of the two L-shaped upper connecting plates are respectively fixedly connected to the two adjacent side surfaces of the square steel pipe column;

[0011] The two ends of the bottom surface of the lower arc-shaped plate are respectively fixedly connected with L-shaped lower connecting plates, and the other right-angled sides of the two L-shaped lower connecting plates are respectively fixedly connected to the two adjacent side surfaces of the square steel pipe column;

[0012] A grooved connecting plate is provided between the upper and lower curved plates on the same side of the square steel pipe column. The grooved connecting plate is in a right-angled U-shape. The web of the grooved connecting plate is fixedly connected to the square steel pipe column, the upper flange of the grooved connecting plate is fixedly connected to the L-shaped upper connecting plate, and the lower flange of the grooved connecting plate is fixedly connected to the L-shaped lower connecting plate.

[0013] A vertical support is fixedly connected between the upper and lower flanges of the trough-shaped connecting plate;

[0014] Furthermore, the oblique steel beam is I-shaped, and two vertical connecting plates are respectively provided on both sides of the oblique steel beam web and fixedly connected to the oblique steel beam web and the oblique short beam web by bolts;

[0015] Four horizontal connecting plates are symmetrically arranged on the top and bottom surfaces of the upper flange of the oblique steel beam, and the remaining four horizontal connecting plates are symmetrically arranged on the top and bottom surfaces of the lower flange of the oblique steel beam, respectively. The horizontal connecting plates are fixedly connected to the oblique steel beam flange and the oblique short beam flange by bolts.

[0016] Furthermore, the upper arc plate and the lower arc plate are both in the shape of right-angled circular rings;

[0017] Furthermore, stiffening ribs are welded at right angles between the L-shaped upper connecting plate and the L-shaped lower connecting plate;

[0018] Furthermore, the vertical support includes a vertical connecting rod, and the two ends of the vertical connecting rod are fixedly connected with a lower end plate and an upper end plate that are parallel to each other; the upper end plate and the lower end plate are fixedly connected to the upper and lower flanges of the grooved connecting plate respectively by bolts;

[0019] Furthermore, an upper stiffening plate and a lower stiffening plate are welded to the upper end plate and the lower end plate respectively, and the upper stiffening plate and the lower stiffening plate are evenly distributed with the vertical connecting rod as the center;

[0020] Furthermore, an L-shaped plate is fixedly connected to the square steel pipe column, and arc-shaped connecting plates are fixedly connected to two right-angled sides of the L-shaped plate respectively, and the other end of the arc-shaped connecting plate is fixedly connected to the upper arc-shaped plate.

[0021] Beneficial effects of the present invention:

[0022] 1) The present invention provides a diagonal beam-column node connection that can meet the needs of actual engineering projects, and adopts an assembled dry connection method. Compared with the assembled wet connection method, the dry connection can improve the seismic performance of the beam-column node, making the structure less susceptible to damage when subjected to earthquakes;

[0023] 2) The present invention eliminates the appearance of plastic hinges at the beam ends in the oblique steel beams by adding Y-shaped plates and oblique short beams. This allows the structure to be used again after earthquake damage simply by replacing the Y-shaped plates and oblique short beams. Furthermore, the Y-shaped plates and oblique short beams are bolted to the structural beams and columns via connecting plates, making them highly replaceable.

[0024] 3) The present invention has a novel structure, simple construction, high degree of assembly, less welding required, convenient on-site installation, short construction period and strong usability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is the front view of the present invention;

[0027] Figure 3 A top view of the present invention;

[0028] Figure 4 This is a schematic diagram of the connection between the oblique short beam and the oblique steel beam;

[0029] Figure 5 This is the vertical support detail drawing;

[0030] In the figure, 1-square steel column, 21-oblique steel beam, 22-orthogonal steel beam one, 23-orthogonal steel beam two, 3-Y-shaped plate, 4-oblique short beam, 5-L-shaped upper connecting plate, 6-trough connecting plate, 7-L-shaped lower connecting plate, 8-vertical support, 9-connecting plate, 10-vertical connecting plate, 11-horizontal connecting plate, 12-upper curved plate, 13-lower curved plate, 14-L-shaped plate, 15-curved connecting plate, 16-stiffening rib. DETAILED DESCRIPTION

[0031] The present invention will be described in detail below with reference to specific embodiments.

[0032] like Figure 1 As shown, the present invention includes a square 1, wherein two adjacent sides of the square steel pipe column 1 are fixedly connected with an orthogonal steel beam 1 22 and an orthogonal steel beam 2 23, and the other two adjacent sides are fixedly connected with a Y-shaped plate 3;

[0033] like Figure 4As shown, the Y-shaped plate 3 is Y-shaped and includes two mutually perpendicular right-angled sides and a hypotenuse. The two right-angled sides of the Y-shaped plate 3 are fixedly connected to two adjacent side surfaces of the square steel tube column 1 respectively; the hypotenuse of the Y-shaped plate 3 is fixedly connected to the web of the oblique short beam 4 through two connecting plates 9, and the top and bottom surfaces of the web of the oblique short beam 4 are respectively provided with upper flanges and lower flanges; by adding the Y-shaped plate and the oblique short beam, the plastic hinge at the beam end is prevented from appearing in the oblique steel beam, so that after the structure suffers earthquake damage, it can continue to be used by simply replacing the Y-shaped plate and the oblique short beam;

[0034] The other end of the oblique short beam 4 is fixedly connected to the oblique steel beam 21 through eight horizontal connecting plates 11 and two vertical connecting plates 10; the oblique steel beam 21 is I-shaped, and the two vertical connecting plates 10 are respectively arranged on both sides of the web of the oblique steel beam 21 and fixedly connected to the web of the oblique steel beam 21 and the web of the oblique short beam 4 by bolts;

[0035] The four horizontal connecting plates 11 are symmetrically arranged on the top and bottom surfaces of the upper flange of the inclined steel beam 21 left and right, and up and down. The remaining four horizontal connecting plates 11 are symmetrically arranged on the top and bottom surfaces of the lower flange of the inclined steel beam 21 left and right, and up and down. The horizontal connecting plates 11 are fixedly connected to the flanges of the inclined steel beam 21 and the flanges of the inclined short beam 4 by bolts.

[0036] like Figure 3 As shown, one end of the upper flange top surface of the oblique short beam 4 is fixedly connected to the upper arc plate 12, and one end of the lower flange bottom surface of the oblique short beam 4 is fixedly connected to the lower arc plate 13; the upper arc plate 12 and the lower arc plate 13 are both right-angled circular rings;

[0037] like Figure 2 As shown, the two ends of the top surface of the upper arc plate 12 are respectively fixedly connected to the L-shaped upper connecting plate 5, and the other right-angled sides of the two L-shaped upper connecting plates 5 are respectively fixedly connected to the two adjacent side surfaces of the square steel pipe column 1; the two ends of the bottom surface of the lower arc plate 13 are respectively fixedly connected to the L-shaped lower connecting plate 7, and the other right-angled sides of the two L-shaped lower connecting plates 7 are respectively fixedly connected to the two adjacent side surfaces of the square steel pipe column 1; stiffening ribs 16 are welded at the right angles of the L-shaped upper connecting plate 5 and the L-shaped lower connecting plate 7;

[0038] A grooved connecting plate 6 is provided between the upper curved plate 12 and the lower curved plate 13 on the same side of the square steel pipe column 1. The grooved connecting plate 6 is in a right-angled U-shape. The web of the grooved connecting plate 6 is fixedly connected to the square steel pipe column 1. The upper flange of the grooved connecting plate 6 is fixedly connected to the L-shaped upper connecting plate 5. The lower flange of the grooved connecting plate 6 is fixedly connected to the L-shaped lower connecting plate 7.

[0039] A vertical support 8 is fixedly connected between the upper and lower flanges of the grooved connecting plate 6; Figure 5As shown, the vertical support 8 includes a vertical connecting rod 803, and the two ends of the vertical connecting rod 803 are fixedly connected to a lower end plate 801 and an upper end plate 804 that are parallel to each other; the upper end plate 804 and the lower end plate 801 are fixedly connected to the upper and lower flanges of the grooved connecting plate 6 by bolts respectively;

[0040] An upper stiffening plate 805 and a lower stiffening plate 802 are welded to the upper end plate 804 and the lower end plate 801 respectively. The upper stiffening plate 805 and the lower stiffening plate 802 are evenly distributed with the vertical connecting rod 803 as the center, and the angle between the upper stiffening plate 805 and the lower stiffening plate 802 is 90°.

[0041] An L-shaped plate 14 is fixedly connected to the square steel pipe column 1 . Arc-shaped connecting plates 15 are fixedly connected to the two right-angled sides of the L-shaped plate 14 . The other end of the arc-shaped connecting plate 15 is fixedly connected to the upper arc-shaped plate 12 .

[0042] The present invention connects the flange of the oblique short beam to the L-shaped upper connecting plate, the groove-shaped connecting plate, and the L-shaped lower connecting plate in the orthogonal direction of the steel pipe column through an arc-shaped connecting plate, so that the bending moment can be transmitted to the orthogonal direction of the steel pipe column, so that the steel pipe column is more evenly stressed, and the corner of the steel pipe column is prevented from yielding first. The present invention adopts a Y-shaped plate and an oblique short beam to connect, and then connects the oblique short beam to the oblique steel beam, so that the plastic hinge at the beam end does not appear in the oblique steel beam. After the structure is damaged by an earthquake, it can continue to be used only by replacing the Y-shaped plate and the oblique short beam. Moreover, the Y-shaped plate and the oblique short beam are bolted to the structural beam column through the connecting plate, and are highly replaceable. In addition, the present invention has a high degree of assembly, requires less welding, is easy to install on site, has a short construction period, and is highly usable.

[0043] In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific contexts.

[0044] The content of the present invention is not limited to the embodiments listed. Any equivalent transformation of the technical solution of the present invention made by ordinary technicians in this field after reading the description of the present invention is covered by the claims of the present invention.

Claims

1. A prefabricated oblique beam-column joint, characterized by: It comprises a square steel tube column (1), wherein two adjacent side surfaces of the square steel tube column (1) are fixedly connected to a first orthogonal steel beam (22) and a second orthogonal steel beam (23), and the remaining two adjacent side surfaces are fixedly connected to a Y-shaped plate (3); The Y-shaped plate (3) is Y-shaped and includes two mutually perpendicular right-angled sides and a hypotenuse. The two right-angled sides of the Y-shaped plate (3) are fixedly connected to two adjacent side surfaces of the square steel pipe column (1). The hypotenuse of the Y-shaped plate (3) is fixedly connected to the web of the oblique short beam (4) through two connecting plates (9). The top surface and bottom surface of the web of the oblique short beam (4) are respectively provided with an upper flange and a lower flange. One end of the upper flange top surface of the oblique short beam (4) is fixedly connected to the upper arc plate (12), and one end of the lower flange bottom surface of the oblique short beam (4) is fixedly connected to the lower arc plate (13); the other end of the oblique short beam (4) is fixedly connected to the oblique steel beam (21) through eight horizontal connecting plates (11) and two vertical connecting plates (10); The two ends of the top surface of the upper arc-shaped plate (12) are respectively fixedly connected with L-shaped upper connecting plates (5), and the other right-angled sides of the two L-shaped upper connecting plates (5) are respectively fixedly connected to the two adjacent side surfaces of the square steel pipe column (1); The two ends of the bottom surface of the lower arc-shaped plate (13) are respectively fixedly connected with L-shaped lower connecting plates (7), and the other right-angled sides of the two L-shaped lower connecting plates (7) are respectively fixedly connected to two adjacent side surfaces of the square steel pipe column (1); A groove-shaped connecting plate (6) is provided between the upper arc-shaped plate (12) and the lower arc-shaped plate (13) on the same side of the square steel pipe column (1), and the groove-shaped connecting plate (6) is a right-angled U-shaped plate; the web of the groove-shaped connecting plate (6) is fixedly connected to the square steel pipe column (1), the upper flange of the groove-shaped connecting plate (6) is fixedly connected to the L-shaped upper connecting plate (5), and the lower flange of the groove-shaped connecting plate (6) is fixedly connected to the L-shaped lower connecting plate (7); A vertical support (8) is fixedly connected between the upper and lower flanges of the groove-shaped connecting plate (6).

2. The assembled oblique beam-column joint according to claim 1, characterized in that: The oblique steel beam (21) is I-shaped, and two vertical connecting plates (10) are respectively arranged on both sides of the web of the oblique steel beam (21) and fixedly connected to the web of the oblique steel beam (21) and the web of the oblique short beam (4) by bolts; Four horizontal connecting plates (11) are respectively arranged symmetrically on the top and bottom surfaces of the upper flange of the inclined steel beam (21) in a left-right and up-down manner, and the remaining four horizontal connecting plates (11) are respectively arranged symmetrically on the top and bottom surfaces of the lower flange of the inclined steel beam (21) in a left-right and up-down manner. The horizontal connecting plates (11) are fixedly connected to the flanges of the inclined steel beam (21) and the flanges of the inclined short beam (4) by bolts.

3. The assembled oblique beam-column joint according to claim 2, characterized in that: The upper arc-shaped plate (12) and the lower arc-shaped plate (13) are both in the shape of right-angled circular rings.

4. The assembled skew beam-column joint according to claim 3, characterized in that: Stiffening ribs (16) are welded at right angles between the L-shaped upper connecting plate (5) and the L-shaped lower connecting plate (7).

5. The assembled oblique beam-column joint according to claim 4, characterized in that: The vertical support (8) includes a vertical connecting rod (803), and the two ends of the vertical connecting rod (803) are fixedly connected to a lower end plate (801) and an upper end plate (804) that are parallel to each other; the upper end plate (804) and the lower end plate (801) are fixedly connected to the upper and lower flanges of the grooved connecting plate (6) respectively through bolts.

6. The assembled oblique beam-column joint according to claim 5, characterized in that: An upper stiffening plate (805) and a lower stiffening plate (802) are welded to the upper end plate (804) and the lower end plate (801), respectively. The upper stiffening plate (805) and the lower stiffening plate (802) are evenly distributed with the vertical connecting rod (803) as the center.

7. The assembled skew beam-column joint according to claim 6, characterized in that: An L-shaped plate (14) is fixedly connected to the square steel pipe column (1), and arc-shaped connecting plates (15) are fixedly connected to the two right-angled sides of the L-shaped plate (14), and the other end of the arc-shaped connecting plate (15) is fixedly connected to the upper arc-shaped plate (12).

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