A node plate capable of turning and sliding

Abstract

The application provides a node plate capable of overturning sliding, comprising a column end node plate, a beam end node plate, a column end sliding plate and a beam end sliding plate, the column end node plate and the beam end node plate are respectively fixedly connected with a column and a beam, a column end sliding plate is vertically and slidingly connected to the inner side of the column end node plate, a beam end sliding plate is horizontally and slidingly connected to the inner side of the beam end node plate, and an inclined support is rotationally connected between the column end sliding plate and the beam end sliding plate. When relative rotation deformation occurs between the column end and the beam end, the column end node plate and the beam end node plate are driven to rotate, and the opening and closing effect is released through the overturning sliding of the column end sliding plate and the beam end sliding plate, so that the inclined support is finally driven to stretch or compress. The rotation deformation force is finally transmitted to the inclined support, the horizontal load is consumed through the elastic-plastic stretching or compression of the inclined support, and the seismic resistance of the frame structure is improved.

Description

Technical Field

[0001] This invention relates to the field of civil engineering technology, and in particular to a node plate that can be flipped and slid. Background Technology

[0002] Diagonal bracing has been widely used in civil engineering structures. As an energy-dissipating and vibration-damping component, buckling-restrained diagonal bracing consists of a core component and an external constraint system. The core component bears axial pressure, and the external system constrains its lateral displacement, preventing buckling and allowing it to yield across the entire cross-section under axial compression. This results in nearly symmetrical tensile and compressive stress performance and excellent energy dissipation capacity. Furthermore, ordinary diagonal bracing can be used directly as a lateral force resisting component, increasing the lateral stiffness of the structure. It can also serve as an auxiliary connector for wall-type metal dampers (shear-type, bending-type, and bending-shear-type metal dampers, etc.), viscoelastic dampers, viscous dampers, magnetorheological dampers, etc., achieving efficient connection between the damper and the structure and maximizing the damping capacity of the damper. Diagonal bracing needs to be connected to the frame using gusset plates. However, traditional gusset plates are single plates, fixed to the beams and columns by welding or bolting at the column and beam ends respectively. Regardless of whether the frame beam-column joints are rigid, semi-rigid, or hinged, the following adverse effects will occur when the structure is subjected to horizontal loads:

[0003] (1) The opening and closing effect has an adverse impact on the gusset plate. The frame beams and columns will undergo relative rotation and bending deformation in the joint area. Since the rigid gusset plate is fixed at the beam-column joint, it will inhibit the relative rotation and bending deformation of the beam and column, thus generating an additional opening and closing effect force at the connection between the gusset plate and the beam-column. This will lead to uneven stress on the gusset plate, causing local stress concentration and failure. This causes the gusset plate to withdraw from the load-bearing state early, thus causing the diagonal bracing connected to it to withdraw from the work prematurely and fail to fully play its disaster prevention role.

[0004] (2) The short column effect has an adverse effect on beams and columns. At the gusset plate connection, in order to delay the failure of the gusset plate and the failure of the connection between the gusset plate and the beam and column, the stiffness of the gusset plate and the strength of the weld or bolt connection will be increased. This will cause the plastic hinge of the beam and column to move outward, reduce the calculated length of the beam and column, and thus cause the short column effect. As a result, the actual stress on the beam and column exceeds the design value, and thus failure occurs. Summary of the Invention

[0005] To address the aforementioned problems, this invention aims to propose a gusset plate that can be flipped and slid. It comprises column-end gusset plates and beam-end gusset plates, respectively fixedly connected to columns and beams. A column-end sliding plate is vertically slidably connected to the inner side of the column-end gusset plate, and a beam-end sliding plate is horizontally slidably connected to the inner side of the beam-end gusset plate. A diagonal brace is rotatably connected between the column-end and beam-end sliding plates. When relative rotational deformation occurs between the column and beam ends, it causes the column-end and beam-end gusset plates to rotate relative to each other. The flipping and sliding of the column-end and beam-end sliding plates releases the opening and closing effect, ultimately driving the diagonal brace to undergo tension or compression. The aforementioned rotational deformation force is ultimately transmitted to the diagonal brace, where the horizontal load is consumed by the elasto-plastic tension or compression, thus improving the seismic resistance of the frame structure.

[0006] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0007] A flip-and-slide node plate includes a column end node plate, a beam end node plate, a column end sliding plate, and a beam end sliding plate. The column end node plate is fixedly connected to the column, and the beam end node plate is fixedly connected to the beam. The column end node plate is vertically and slidably connected to the inner side of the column end node plate, and the beam end node plate is horizontally and slidably connected to the inner side of the beam end node plate. The column end sliding plate and the beam end sliding plate are rotatably connected by diagonal bracing.

[0008] Furthermore, the column end node plate is provided with a plurality of first square holes, the first square holes being used to install first square pins, and the column end sliding plate is provided with vertical sliding grooves corresponding to and matching the first square pins.

[0009] Furthermore, the beam end node plate is provided with a plurality of second square holes, the second square holes being used to install second square pins, and the beam end sliding plate is provided with transverse sliding grooves corresponding to and matching the second square pins.

[0010] Furthermore, the vertical sliding groove and the horizontal sliding groove of the column end sliding plate and the beam end sliding plate are provided with strip-shaped steps, and the strip-shaped steps are used to install the pin heads corresponding to the first square pin and the second square pin.

[0011] Furthermore, both the column end sliding plate and the beam end sliding plate are provided with circular holes, and the outer side of the circular holes of both the column end sliding plate and the beam end sliding plate is provided with circular steps. The inclined support is provided with shaft holes that correspond to and match the circular holes. Circular pins are installed in the circular holes and shaft holes, and locking nuts corresponding to the circular pins are installed in the circular steps.

[0012] Furthermore, the column end node plate does not contact the beam and is spaced at a predetermined distance, and the beam end node plate does not contact the column and is spaced at a predetermined distance.

[0013] Furthermore, the column end node plate and beam end node plate are both designed with an arc shape at the end closest to the beam or column.

[0014] Beneficial effects: This invention sets up column end node plates and beam end node plates that are fixedly connected to the columns and beams respectively. The inner side of the column end node plate is vertically slidably connected to a column end sliding plate, and the inner side of the beam end node plate is horizontally slidably connected to a beam end sliding plate. A diagonal brace is rotatably connected between the column end sliding plate and the beam end sliding plate. When relative rotational deformation occurs between the column end and the beam end, it drives the column end node plate and the beam end node plate to rotate relative to each other. Through the flipping and sliding of the column end sliding plate and the beam end sliding plate, the opening and closing effect is released, and finally the diagonal brace is driven to stretch or compress. The above-mentioned rotational deformation force is finally transmitted to the diagonal brace. The horizontal load is consumed by the elastic-plastic stretching or compression of the diagonal brace, thereby improving the seismic resistance of the frame structure. Attached Figure Description

[0015] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0016] Figure 1 This is an exploded view of the flip-sliding node plate described in an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the node plate that can be flipped and slid according to an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram showing the connection between the column end sliding plate and the beam end sliding plate of the rotatable and sliding node plate described in an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram showing the connection between the column end node plate and the column end sliding plate of the node plate that can be flipped and slidable according to an embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram showing the connection between the beam end node plate and the beam end sliding plate of the node plate that can be flipped and slidable according to an embodiment of the present invention;

[0021] Figure 6 This is a schematic diagram of the first square pin and the second square pin of the node plate that can be flipped and slid according to an embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of the circular pin and locking nut of the node plate that can be flipped and slid according to an embodiment of the present invention. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0024] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] Example 1

[0026] See Figure 1-7 A gusset plate that can be flipped and slid includes a column end gusset plate 1, a beam end gusset plate 2, a column end sliding plate 3, and a beam end sliding plate 4. The column end gusset plate 1 is fixedly connected to a column 5, and the beam end gusset plate 2 is fixedly connected to a beam 6. The column end gusset plate 3 is vertically and slidably connected to the inner side of the column end gusset plate 1, and the beam end sliding plate 4 is horizontally and slidably connected to the inner side of the beam end gusset plate 2. An oblique support 7 is rotatably connected between the column end sliding plate 3 and the beam end sliding plate 4.

[0027] In this embodiment, when relative rotational deformation occurs between the column end and the beam end, the column end node plate and the beam end node plate rotate relative to each other. Through the flipping and sliding of the column end sliding plate and the beam end sliding plate, the opening and closing effect is released, which ultimately drives the diagonal bracing to be stretched or compressed. The aforementioned rotational deformation force is ultimately transmitted to the diagonal bracing, and the horizontal load is consumed by the elastic-plastic stretching or compression of the diagonal bracing, thereby improving the seismic resistance of the frame structure.

[0028] In a specific example, the column end node plate 1 is provided with a plurality of first square holes 101, the first square holes 101 are used to install first square pins 102, and the column end sliding plate 3 is provided with vertical sliding grooves 301 corresponding to and matching the first square pins 102.

[0029] In this embodiment, the first square pin, in conjunction with the first square hole and the vertical sliding groove, enables the column end sliding plate to slide vertically along the column end node plate.

[0030] In a specific example, the beam end node plate 2 is provided with a plurality of second square holes 201, the second square holes 201 are used to install second square pins 202, and the beam end sliding plate 4 is provided with transverse sliding grooves 401 corresponding to and matching the second square pins 202.

[0031] In this embodiment, the second square pin, in conjunction with the second square hole and the transverse sliding groove, enables the beam end sliding plate to slide laterally along the beam end node plate.

[0032] It should be noted that the column end node plates and beam end node plates are connected to the columns and beams respectively. The beam end node plates and column end node plates are connected to the beam end sliding plates and column end sliding plates respectively through the second square pin and the first square pin. This does not hinder the relative rotation of the beam and column. Furthermore, the relative sliding between the beam end node plates and the beam end sliding plates, and between the column end node plates and the column end sliding plates, ensures that the pins are horizontal. This effectively releases the relative rotational and bending deformation of the beams and columns in the node plate section of the frame structure, reducing the restraining effect of the node plates. In addition, since the vertical and horizontal sliding grooves of the column end node plates and beam end node plates are vertically distributed, they still have a certain included angle after mutual rotation, thus ensuring that rigid body sliding does not occur.

[0033] In a specific example, the vertical sliding groove 301 and the horizontal sliding groove 401 of the column end sliding plate 3 and the beam end sliding plate 4 are provided with strip-shaped steps on the inner side. The strip-shaped steps are used to install the pin heads corresponding to the first square pin 102 and the second square pin 202.

[0034] In this embodiment, both the vertical and horizontal sliding grooves of the column-end sliding plate and the beam-end sliding plate are provided with strip-shaped steps. The strip-shaped steps are used to install the pin heads, thereby locking the first square pin and the second square pin and preventing them from falling off during rotation. The pin heads are located inside the strip-shaped steps and do not protrude from the column-end sliding plate and the beam-end sliding plate, so as not to interfere with the rotational connection between the beam-end sliding plate, the column-end sliding plate and the diagonal support.

[0035] In a specific example, both the column end sliding plate 3 and the beam end sliding plate 4 are provided with circular holes, and both the column end sliding plate 3 and the beam end sliding plate 4 are provided with circular steps on the outside of the circular holes. The inclined support 7 is provided with shaft holes 701 that correspond to and match the circular holes. The circular holes and shaft holes 701 are used to install circular pins 702, and the steps are used to install locking nuts corresponding to the circular pins 702.

[0036] In this embodiment, both the column-end sliding plate and the beam-end sliding plate are axially rotated through a circular hole and a circular pin, which in turn connects to the shaft hole of the inclined support. In addition, the outer side of the circular hole of both the column-end sliding plate and the beam-end sliding plate in this embodiment is provided with a circular step. A locking nut is installed inside the circular step to lock the circular pin and prevent it from falling off during rotation. The locking nut is located inside the circular step and does not protrude outside the column-end sliding plate and the beam-end sliding plate, so as not to interfere with the connection between the beam / column end node plate and the beam-end sliding plate / column end sliding plate.

[0037] In a specific example, the column end node plate 1 does not contact the beam 6 and is spaced at a predetermined distance, and the beam end node plate 2 does not contact the column 5 and is spaced at a predetermined distance.

[0038] In this embodiment, the column end node plate and the beam end node plate do not contact the beam end and the column end respectively and maintain an appropriate distance. This ensures that when the node plate is closed, the column end node plate and the beam end node plate will not contact the beam end and the column end when rotating inward, thus avoiding interference and affecting the rotation of the node plate.

[0039] In a specific example, the column end node plate 1, the beam end node plate 2, and the end of the beam 6 and column 5 that are close to each other are all designed with an arc shape.

[0040] The arc-shaped design of the column end node plate and beam end node plate in this embodiment can provide clearance space for the relative rotation of the column end node plate and beam end node plate with the beam and column, and facilitate the relative rotation of the two.

[0041] The working principle of this embodiment is as follows: After the frame structure is subjected to load, the beams and columns undergo relative rotation and bending deformation, which in turn causes the beam end node plates, beam end sliding plates, column end node plates, and column end sliding plates to rotate relative to each other. Due to the existence of horizontal and vertical sliding grooves, the beam end node plates and beam end sliding plates, and the column end node plates and column end sliding plates slide relative to each other during the relative rotation, thereby ensuring that the square pin is horizontal. The load is transferred through the beams and columns to the beam end node plates and column end node plates, further transferred to the beam end sliding plates and column end sliding plates, and finally transferred to the diagonal bracing through the circular pin, without affecting the relative rotation and bending deformation of the beams and columns at the node plates.

[0042] 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 within the protection scope of the present invention.

Claims

1. A node plate that can be flipped and slid, characterized in that, It includes a column end node plate (1), a beam end node plate (2), a column end sliding plate (3), and a beam end sliding plate (4). The column end node plate (1) is fixedly connected to the column (5), and the beam end node plate (2) is fixedly connected to the beam (6). The column end node plate (1) is vertically slidably connected to the column end sliding plate (3), and the beam end node plate (2) is horizontally slidably connected to the beam end sliding plate (4). The column end sliding plate (3) and the beam end sliding plate (4) are rotatably connected by an oblique support (7).

2. The rotatable and sliding node plate according to claim 1, characterized in that, The column end node plate (1) is provided with a plurality of first square holes (101), and the first square holes (101) are used to install the first square pin (102). The column end sliding plate (3) is provided with a vertical sliding groove (301) that corresponds to and matches the first square pin (102).

3. The rotatable and sliding node plate according to claim 2, characterized in that, The beam end node plate (2) is provided with a plurality of second square holes (201), and the second square holes (201) are used to install second square pins (202). The beam end sliding plate (4) is provided with transverse sliding grooves (401) that correspond to and match the second square pins (202).

4. The rotatable and sliding node plate according to claim 3, characterized in that, The vertical sliding groove (301) and the horizontal sliding groove (401) of the column end sliding plate (3) and the beam end sliding plate (4) are all provided with strip-shaped steps. The strip-shaped steps are used to install the pin heads corresponding to the first square pin (102) and the second square pin (202).

5. The rotatable and sliding node plate according to claim 1, characterized in that, Both the column end sliding plate (3) and the beam end sliding plate (4) are provided with circular holes. Circular steps are provided on the outer side of the circular holes of both the column end sliding plate (3) and the beam end sliding plate (4). The inclined support (7) is provided with shaft holes (701) that match the circular holes. Circular pins (702) are installed in the circular holes and shaft holes (701). Locking nuts corresponding to the circular pins (702) are installed in the circular steps.

6. The rotatable and sliding node plate according to claim 1, characterized in that, The column end node plate (1) does not contact the beam (6) and is spaced at a set distance, and the beam end node plate (2) does not contact the column (5) and is spaced at a set distance.

7. The rotatable and sliding node plate according to claim 1, characterized in that, The column end node plate (1), beam end node plate (2), and the end of the beam (6) and column (5) that are close to each other are all designed with an arc shape.

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