A drawer type slitted steel plate damper beam-column connection joint

Abstract

The application discloses a drawer type slitted steel plate damper beam-column connecting joint, a first outer steel plate is fixed on the side surface of a column, a second outer steel plate is fixed on the end of a beam, a first group of lug plates are fixed on the first outer steel plate, a second group of lug plates are fixed on the second outer steel plate, each lug plate in the first group of lug plates and each lug plate in the second group of lug plates are staggered and distributed, and the first group of lug plates and the second group of lug plates are connected through a pin shaft; a first inner short plate is fixed on the side surface of the first outer steel plate, and a second inner short plate is fixed on the second outer steel plate; a plurality of inner steel plates are arranged on the side surface of the first inner short plate, and a plurality of energy dissipation steel plates are arranged on the side surface of the second inner short plate, wherein each inner steel plate is inserted between each energy dissipation steel plate, and each bolt in a first group of bolts passes through each inner steel plate and each energy dissipation steel plate, the connecting joint has excellent energy dissipation capacity, is easy to repair after an earthquake, and has high construction safety.

Description

Technical Field

[0001] This invention belongs to the field of prefabricated joints and relates to a drawer-type slotted steel plate damper beam-column connection joint. Background Technology

[0002] As an important force transmission part of steel structure, the mechanical properties of beam-column connection directly affect the load-bearing capacity and stiffness of the overall structure. Traditional steel structure beam-column connection usually uses bolts or welds to connect the flanges and webs, which has very limited energy dissipation capacity and is not easy to repair after an earthquake. At the same time, welding needs to be carried out on the construction site, which is prone to open flames and has poor safety. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a drawer-type slotted steel plate damper beam-column connection node. This node has excellent energy dissipation capacity, is easy to repair after an earthquake, and has high construction safety.

[0004] To achieve the above objectives, the present invention discloses a drawer-type slotted steel plate damper beam-column connection node, comprising a first outer steel plate, a second outer steel plate, two inner short plates, and two sets of ear plates;

[0005] The first outer steel plate is fixed to the side of the column, the second outer steel plate is fixed to the end of the beam, the first set of ear plates is fixed to the first outer steel plate, the second set of ear plates is fixed to the second outer steel plate, the ear plates in the first set of ear plates and the ear plates in the second set of ear plates are staggered, and the first set of ear plates and the second set of ear plates are connected by pins.

[0006] The first inner short plate is fixed to the side of the first outer steel plate, and the second inner short plate is fixed to the second outer steel plate. Several inner steel plates are provided on the side of the first inner short plate, and several energy-consuming steel plates are provided on the side of the second inner short plate. Each inner steel plate is inserted between each energy-consuming steel plate, and each bolt in the first group of bolts passes through each inner steel plate and each energy-consuming steel plate.

[0007] Two stiffening plates are provided on the side of the second inner short plate.

[0008] Each energy-consuming steel plate is located between two stiffening plates.

[0009] The first outer steel plate is fixed to the side of the column by a second set of bolts.

[0010] The second outer steel plate is fixed to the end of the beam by the third set of bolts.

[0011] The first outer steel plate is connected to the first inner short plate by the fourth set of bolts.

[0012] The second outer steel plate is connected to the second inner short plate by the fifth set of bolts.

[0013] A trapezoidal groove is provided on the end face of the energy-consuming steel plate near the second inner short plate.

[0014] The energy-consuming steel plate is provided with two sets of through holes.

[0015] The two sets of through holes are located on both sides of each bolt in the first set of bolts.

[0016] The present invention has the following beneficial effects:

[0017] In practical operation, the drawer-type slotted steel plate damper beam-column connection node of this invention allows the pin to rotate freely without being damaged by large rotations between the beam and column. Simultaneously, the inner steel plates are inserted between the energy-dissipating steel plates, and the bolts in the first set pass through both the inner and energy-dissipating steel plates to form a drawer-type energy-dissipating damper. This damper possesses superior energy dissipation capacity and can enter a plastic state before the beam and column under seismic loading, thus acting as a "structural fuse." It is also easy to maintain and replace later. Under axial force, the first set of bolts on the energy-dissipating steel plate undergoes shear deformation, entering a plastic state earlier and dissipating seismic energy under minor or moderate earthquakes. Post-earthquake repair is easy, and the prefabricated structure ensures high construction safety. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the present invention;

[0019] Figure 2 This is an exploded view of the present invention;

[0020] Figure 3 This is an assembly drawing of the present invention;

[0021] Figure 4 This is a side view of the present invention.

[0022] Among them, 1 is the energy-consuming steel plate, 2 is the inner steel plate, 3 is the stiffening plate, 4 is the inner short plate, 5 is the ear plate, 6 is the first outer steel plate, 7 is the second outer steel plate, 8 is the pin, and 9 is the bolt. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of the present invention, not all embodiments, and are not intended to limit the scope of the present invention. Furthermore, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion regarding the concepts disclosed in the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort should fall within the scope of protection of the present invention.

[0024] The accompanying drawings show structural schematic diagrams according to embodiments disclosed in this invention. These drawings are not drawn to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0025] refer to Figures 1 to 4 The drawer-type slotted steel plate damper beam-column connection node of the present invention includes an energy-dissipating steel plate 1, an inner steel plate 2, a stiffening plate 3, an inner short plate 4, an ear plate 5, a first outer steel plate 6, a second outer steel plate 7, a pin 8, and a bolt 9.

[0026] The first outer steel plate 6 is fixed to the side of the column, the second outer steel plate 7 is fixed to the end of the beam, the first set of ear plates is fixed to the first outer steel plate 6, the second set of ear plates is fixed to the second outer steel plate 7, the ear plates 5 in the first set of ear plates and the ear plates 5 in the second set of ear plates are staggered, and the first set of ear plates and the second set of ear plates are connected by pins 8.

[0027] The first inner short plate 4 is fixed to the side of the first outer steel plate 6, and the second inner short plate 4 is fixed to the second outer steel plate 7. Several inner steel plates 2 are provided on the side of the first inner short plate 4, and several energy-consuming steel plates 1 are provided on the side of the second inner short plate 4. Each inner steel plate 2 is inserted between each energy-consuming steel plate 1, and each bolt 9 in the first group of bolts passes through each inner steel plate 2 and each energy-consuming steel plate 1.

[0028] In this embodiment, two stiffening plates 3 are provided on the side of the second inner short plate 4, wherein each energy-consuming steel plate 1 is located between the two stiffening plates 3.

[0029] In this embodiment, the first outer steel plate 6 is fixed to the side of the column by the second set of bolts, and the second outer steel plate 7 is fixed to the end of the beam by the third set of bolts.

[0030] In this embodiment, the first outer steel plate 6 is connected to the first inner short plate 4 by the fourth set of bolts; the second outer steel plate 7 is connected to the second inner short plate 4 by the fifth set of bolts.

[0031] In this embodiment, a trapezoidal groove is provided on the end face of the energy-consuming steel plate 1 near the second inner short plate 4.

[0032] In this example, the energy-consuming steel plate 1 is provided with two sets of through holes, which are located on both sides of each bolt 9 in the first set of bolts, and the through holes are elongated holes.

[0033] The installation process of this invention is as follows:

[0034] The components are prefabricated in the factory, and then the inner steel plate 2 is connected to the first inner short plate 4; the energy-consuming steel plate 1, the stiffening plate 3 and the second inner short plate 4 are connected; the first set of ear plates 5 is connected to the first outer steel plate 6, and the second set of ear plates 5 is connected to the second outer steel plate 7. Then they are transported to the construction site and the components are connected by bolts 9 and pins 8.

[0035] The working principle of this invention is as follows:

[0036] The pin 8 can rotate freely and will not be damaged by large rotations between beams and columns. The lower drawer-type energy dissipation damper has superior energy dissipation capacity and can enter the plastic state before beams and columns under seismic loading, thus acting as a "structural fuse". The energy dissipation steel plate 1 in the drawer-type energy dissipation damper has two rows of parallel through holes, forming numerous variable cross-section connecting beams. Under both positive and negative bending moments, all damage is concentrated in the easily replaceable drawer-type energy dissipation damper, which is convenient for maintenance and replacement. Under axial force, the first set of bolts 9 on the energy dissipation steel plate 1 will undergo shear deformation, entering the plastic state earlier, thus dissipating seismic energy under small or moderate earthquakes. The stiffening plates 3 are located on both sides of the energy dissipation steel plate 1. To ensure controllable damage to the energy dissipation connection under seismic loading, the number of energy dissipation steel plates 1 and inner steel plates 2 can be increased.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A drawer-type slotted steel plate damper beam-column connection node, characterized in that, It includes a first outer steel plate (6), a second outer steel plate (7), two inner short plates (4) and two sets of ear plates (5); The first outer steel plate (6) is fixed to the side of the column, the second outer steel plate (7) is fixed to the end of the beam, the first set of ear plates is fixed on the first outer steel plate (6), the second set of ear plates is fixed on the second outer steel plate (7), the ear plates (5) in the first set of ear plates and the ear plates (5) in the second set of ear plates are staggered, and the first set of ear plates and the second set of ear plates are connected by pins (8); The first inner short plate (4) is fixed to the side of the first outer steel plate (6), and the second inner short plate (4) is fixed to the second outer steel plate (7). Several inner steel plates (2) are provided on the side of the first inner short plate (4), and several energy-consuming steel plates (1) are provided on the side of the second inner short plate (4). Each inner steel plate (2) is inserted between each energy-consuming steel plate (1), and each bolt (9) in the first group of bolts passes through each inner steel plate (2) and each energy-consuming steel plate (1).

2. The drawer-type slotted steel plate damper beam-column connection node according to claim 1, characterized in that, Two stiffening plates (3) are provided on the side of the second inner short plate (4).

3. The drawer-type slotted steel plate damper beam-column connection node according to claim 2, characterized in that, Each energy-consuming steel plate (1) is located between two stiffening plates (3).

4. The drawer-type slotted steel plate damper beam-column connection node according to claim 1, characterized in that, The first outer steel plate (6) is fixed to the side of the column by a second set of bolts.

5. The drawer-type slotted steel plate damper beam-column connection node according to claim 1, characterized in that, The second outer steel plate (7) is fixed to the end of the beam by the third set of bolts.

6. The drawer-type slotted steel plate damper beam-column connection node according to claim 1, characterized in that, The first outer steel plate (6) is connected to the first inner short plate (4) by the fourth set of bolts.

7. The drawer-type slotted steel plate damper beam-column connection node according to claim 1, characterized in that, The second outer steel plate (7) is connected to the second inner short plate (4) by the fifth set of bolts.

8. The drawer-type slotted steel plate damper beam-column connection node according to claim 1, characterized in that, A trapezoidal groove is provided on the end face of the energy-consuming steel plate (1) near the second inner short plate (4).

9. The drawer-type slotted steel plate damper beam-column connection node according to claim 1, characterized in that, The energy-consuming steel plate (1) is provided with two sets of through holes.

10. The drawer-type slotted steel plate damper beam-column connection node according to claim 9, characterized in that, The two sets of through holes are located on both sides of each bolt (9) in the first set of bolts.

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