A combined energy dissipation and seismic reduction device

Abstract

The present invention discloses a combined energy dissipation and shock absorption device, which is installed at the joint gap of a building structure; a horizontal member is fixed on the bottom surface of the joint gap; a hinge frame is fixed on the top surface of the joint gap; a vertical member is vertically arranged above the horizontal member, and there is a gap between the bottom end of the vertical member and the horizontal member. The top end of the vertical member is hinged to the hinge frame through a tension-compression rod; there is a gap between the top end of the vertical member and the top surface of the joint gap; the number of energy dissipation steel plates is two, and they are respectively arranged on both sides of the vertical member, and both energy dissipation steel plates are connected between the side wall of the vertical member and the top surface of the horizontal member through first bolts; the number of connecting plates is two, and they are respectively arranged on both sides of the vertical member perpendicular to the arrangement direction of the energy dissipation steel plates; the upper parts of the two connecting plates are connected to the vertical member through friction energy dissipation shafts, and the lower parts of the two connecting plates are connected to the horizontal member through second bolts.

Description

Technical Field

[0001] The present invention relates to the technical field of earthquake resistance of civil engineering structures, and more specifically to a combined energy dissipation and vibration reduction device. Background Art

[0002] Energy dissipation and vibration reduction means that some components in the structure are designed as energy dissipation components, or dampers are installed at some component points or joints of the structure. Under the action of wind load or minor earthquakes, the energy dissipation members or dampers are in the elastic deformation system and have sufficient lateral stiffness to meet the normal use requirements. During strong earthquakes, the energy dissipation members or dampers enter the inelastic state first to dissipate the seismic energy input into the structure, so that the main structure can avoid entering the obvious inelastic state and be protected from damage during strong earthquakes.

[0003] An energy dissipation device is installed at the beam-column joints or beam-beam joints of the energy dissipation and vibration reduction structure. When an angular change or rotation occurs at the joint, the energy dissipation device can play a role in energy dissipation and vibration reduction. An energy dissipation device is set at the gap of the structure or the connection between structural members. When relative deformation occurs at the gap or connection, the energy dissipation device can play a role.

[0004] The characteristics of energy dissipation and vibration reduction are obvious vibration reduction effect, simple structure, low cost, wide application range, and convenient maintenance; it is suitable for both new projects and the seismic reinforcement and renovation of existing buildings; it is suitable for both ordinary building structures and seismic lifeline projects.

[0005] Therefore, how to provide an effective energy dissipation and vibration reduction device is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0006] In view of this, the present invention provides a combined energy dissipation and vibration reduction device to solve the above technical problems.

[0007] To achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A combined energy dissipation and vibration reduction device is installed at the joint gap of a building structure; it includes:

[0009] A horizontal member; the horizontal member is fixed on the bottom surface of the joint gap;

[0010] A hinge frame; the hinge frame is fixed on the top surface of the joint gap;

[0011] A vertical member; the vertical member is vertically arranged above the horizontal member, and there is a gap between the bottom end and the horizontal member. The top end of the vertical member is hinged to the hinge frame through a tension-compression rod; there is a gap between the top end of the vertical member and the top surface of the joint gap;

[0012] Energy dissipation steel plates; the number of the energy dissipation steel plates is two, and they are respectively arranged on both sides of the vertical member, and both of the two energy dissipation steel plates are connected between the side wall of the vertical member and the top surface of the horizontal member through first bolts;

[0013] Connection plates; the number of the connection plates is two, and they are respectively arranged on both sides of the vertical member perpendicular to the arrangement direction of the energy dissipation steel plates; the upper parts of the two connection plates are connected to the vertical member through friction energy dissipation shafts, and the lower parts of the two connection plates are connected to the horizontal member through second bolts.

[0014] Through the above technical solutions, the combined energy dissipation and shock absorption device provided by the present invention starts to operate during strong earthquakes, and utilizes its own damping, friction, and plastic deformation properties to dissipate seismic energy, thereby improving the safety and reliability of the structure and achieving the purpose of shock absorption and disaster prevention. It can be widely applied to various building structures that require energy dissipation and shock absorption.

[0015] Preferably, in the above-mentioned combined energy dissipation and shock absorption device, the energy dissipation steel plates are C-shaped steel plates, and the two C-shaped steel plates are symmetrically arranged on both sides of the vertical member, and the arc-shaped convex surfaces face each other. The C-shaped steel plates can not only meet the connection structure requirements of the horizontal member and the vertical member, but also meet the requirements of deformation energy dissipation and self-resetting performance.

[0016] Preferably, in the above-mentioned combined energy dissipation and shock absorption device, mounting plates are vertically and fixedly arranged on both sides of the vertical member for connecting with the C-shaped steel plates; the top ends of the C-shaped steel plates are connected to the mounting plates through the first bolts.

[0017] Preferably, in the above-mentioned combined energy dissipation and shock absorption device, stiffening ribs are fixed on both the horizontal member and the vertical member. The cross-section of the horizontal member is T-shaped, and the stiffening ribs on the horizontal member are fixed between the web on both sides of the horizontal member and the flange plate at the top; the stiffening ribs on the vertical member are fixed between the two side surfaces of the vertical member and the mounting plate. The stiffening ribs enhance the axial compression capacity of the members.

[0018] Preferably, in the above-mentioned combined energy dissipation and shock absorption device, a friction plate is interposed between the connection surface of the connection plate and the vertical member, and the friction plate has through holes through which the friction energy dissipation shafts pass. The characteristic of this structure is that friction is generated through the relative sliding between the connection plate and the friction plate, and the vibration energy of the building is converted into heat energy, thereby achieving the purpose of structural vibration response.

[0019] Preferably, in the above-mentioned combined energy dissipation and shock absorption device, the number of the second bolts connecting the lower parts of the two connection plates and the horizontal member is multiple, and they are arranged in a matrix. It can effectively improve the connection stability between the connection plate and the horizontal member.

[0020] Preferably, in the above-mentioned combined energy dissipation and seismic reduction device, the building structure includes concrete columns, concrete beams fixed between the concrete columns, and a seismic reduction connecting wall vertically fixed on the concrete beams. A node gap is formed between the top surface of the seismic reduction connecting wall and the concrete beam above it. The function of the seismic reduction connecting wall is to transfer the horizontal displacement of the lower concrete beam under earthquake action.

[0021] Preferably, in the above-mentioned combined energy dissipation and seismic reduction device, the articulated frame includes a first embedded plate and an ear plate; the first embedded plate is anchored to the bottom surface of the concrete beam above the node gap, and the ear plate is welded and fixed to the first embedded plate; one end of the tension-compression rod is connected to the ear plate, and the other end is hinged to the top side wall of the vertical member through a smooth hinge. The ear plate increases the connection surface, thus making the connection more firm.

[0022] Preferably, in the above-mentioned combined energy dissipation and seismic reduction device, the tension-compression rod is horizontally arranged. The tension-compression rod mainly bears the axial tension or pressure from the member during earthquake action.

[0023] Preferably, in the above-mentioned combined energy dissipation and seismic reduction device, a second embedded plate is anchored to the top surface of the seismic reduction connecting wall below the node gap, and the second embedded plate is welded and fixed to the horizontal member. The energy dissipation and seismic reduction device receives the horizontal displacement transmitted from the lower concrete beam through the seismic reduction connecting wall, undergoes lateral displacement, and thus reaches an ideal state, playing the role of energy dissipation.

[0024] Preferably, in the above-mentioned combined energy dissipation and seismic reduction device, under small earthquake action, first the friction plate rotates and dissipates energy through friction, and under medium or large earthquake action, the C-shaped steel plate begins to exert its energy dissipation and seismic reduction function, consuming the energy input into the structure by the earthquake together with the friction plate.

[0025] The fixed connection between the first embedded plate and the second embedded plate can be bolt-rivet connection or steel bar plug welding connection.

[0026] Through the above technical solutions, compared with the prior art, the present invention discloses a combined energy dissipation and seismic reduction device, which has the following beneficial effects:

[0027] 1. The combined energy dissipation and seismic reduction device is mainly composed of a reinforced concrete support and a friction type energy dissipator. When the start-up condition (large earthquake) is not reached, the friction energy dissipator does not start, and its function is equivalent to a rigid tie rod, and the effect of the whole device is basically the same as that of an ordinary support; when the start-up condition is reached, the energy dissipator starts to operate, and uses its own damping, friction, and plastic deformation properties to dissipate earthquake energy, thereby improving the safety and reliability of the structure and achieving the purpose of earthquake reduction and disaster prevention.

[0028] 2. The present invention reduces the damage of the structure under strong earthquakes, dissipates the seismic energy in the structure, and extends the service life of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0030] Figure 1 The attached drawings are schematic diagrams of the connection between the combined energy dissipation and seismic reduction device provided by the present invention and the building structure;

[0031] Figure 2 The attached drawings are Figure 1 an enlarged view of the combined energy dissipation and seismic reduction device in

[0032] Wherein:

[0033] 1 - Node gap; 2 - Horizontal member; 3 - Hinge frame; 4 - Vertical member; 5 - Energy dissipation steel plate; 6 - Connection plate; 7 - Tension and compression bar; 8 - First bolt; 9 - Friction energy dissipation shaft; 10 - Second bolt; 11 - Mounting plate; 12 - Stiffening rib; 13 - Concrete column; 14 - Concrete beam; 15 - Seismic reduction connection wall; 16 - First embedded plate; 17 - Ear plate; 18 - Second embedded plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0035] Refer to Figure 1 and Figure 2 , the embodiments of the present invention disclose a combined energy dissipation and seismic reduction device, which is installed at the node gap 1 of the building structure; including:

[0036] Horizontal member 2; the horizontal member 2 is fixed on the bottom surface of the node gap 1;

[0037] Hinge frame 3; the hinge frame 3 is fixed on the top surface of the node gap 1;

[0038] Vertical member 4; The vertical member 4 is vertically arranged above the horizontal member 2, and there is a gap between its bottom end and the horizontal member 2. The top end of the vertical member 4 is hinged to the articulated frame 3 through a tension-compression rod 7; There is a gap between the top end of the vertical member 4 and the top surface of the joint gap 1.

[0039] Energy dissipation steel plate 5; The number of energy dissipation steel plates 5 is two, and they are respectively arranged on both sides of the vertical member 4. Both of the two energy dissipation steel plates 5 are connected between the side wall of the vertical member 4 and the top surface of the horizontal member 2 through the first bolt 8.

[0040] Connection plate 6; The number of connection plates 6 is two, and they are respectively arranged on both sides perpendicular to the arrangement direction of the vertical member 4 and the energy dissipation steel plate 5; The upper parts of the two connection plates 6 are connected to the vertical member 4 through a friction energy dissipation shaft 9, and the lower parts of the two connection plates 6 are connected to the horizontal member 2 through the second bolt 10.

[0041] To further optimize the above technical solution, the energy dissipation steel plate 5 is a C-shaped steel plate. The two C-shaped steel plates are symmetrically arranged on both sides of the vertical member 4, and the arc-shaped convex surfaces face each other.

[0042] To further optimize the above technical solution, mounting plates 11 are vertically fixed on both sides of the vertical member 4 for connecting with the C-shaped steel plate; The top end of the C-shaped steel plate is connected to the mounting plate 11 through the first bolt 8.

[0043] To further optimize the above technical solution, stiffening ribs 12 are fixed on both the horizontal member 2 and the vertical member 4; The cross-section of the horizontal member 2 is T-shaped. The stiffening ribs 12 on the horizontal member 2 are fixed between the web on both sides of the horizontal member 2 and the flange plate at the top; The stiffening ribs 12 on the vertical member 4 are fixed between the two side surfaces of the vertical member 4 and the mounting plate 11.

[0044] To further optimize the above technical solution, a friction plate is padded between the connection surface of the connection plate 6 and the vertical member 4, and the friction plate has a through hole through which the friction energy dissipation shaft 9 passes.

[0045] To further optimize the above technical solution, the number of the second bolts 10 connecting the lower parts of the two connection plates 6 and the horizontal member 2 is multiple, and they are arranged in a matrix.

[0046] To further optimize the above technical solution, the building structure includes a concrete column 13, a concrete beam 14 fixed between the concrete columns 13, and a shock-absorbing connection wall 15 vertically fixed on the concrete beam 14. A joint gap 1 is formed between the top surface of the shock-absorbing connection wall 15 and the concrete beam 14 above it.

[0047] To further optimize the above technical solution, the articulated frame 3 includes a first embedded plate 16 and an ear plate 17; the first embedded plate 16 is anchored to the bottom surface of the concrete beam 14 above the joint gap 1, and the ear plate 17 is welded and fixed to the first embedded plate 16; one end of the tension-compression rod 7 is connected to the ear plate 17, and the other end is hinged to the top side wall of the vertical member 4 through a smooth hinge.

[0048] To further optimize the above technical solution, the tension-compression rod 7 is horizontally arranged.

[0049] To further optimize the above technical solution, a second embedded plate 18 is anchored to the top surface of the shock-absorbing connection wall 15 below the joint gap 1, and the second embedded plate 18 is welded and fixed to the horizontal member 2.

[0050] When the combined energy dissipation and shock absorption device provided by the present invention is installed, the first embedded plate 16 is anchored and connected to the upper concrete beam 14. The ear plate 17, which serves as a transition piece to expand the connection surface, is welded to the first embedded plate 16. The right end of the tension-compression rod 7 is connected to the ear plate 17, and the left end is connected to the vertical member 4 through a smooth hinge; the horizontal member 2 is connected to the shock-absorbing connection wall 15 through the second embedded plate 18, and the shock-absorbing connection wall 15 is fixed to the lower concrete beam 14, making the combined energy dissipation and shock absorption device in a very stable state when no vibration occurs.

[0051] In the combined energy dissipation and shock absorption device, the energy dissipation steel plate 5 is connected to the vertical member 4 and the horizontal member 2 through the first bolt 8, playing a certain restraining role and improving the stability of the device; at the same time, stiffening ribs 12 are installed on both the vertical member 4 and the horizontal member to prevent the vertical member 4 and the horizontal member 2 from being damaged under axial compression; the connecting plate 6 is composed of two steel plates, and two friction plates are respectively added to the inner sides of the two steel plates. The upper end of the connecting plate 6 is connected to the vertical member 4 through a friction energy dissipation shaft 9 and the lower end is connected to the horizontal member 2, ensuring that the device has sufficient lateral displacement resistance stiffness during an earthquake. And the shock-absorbing connection wall 15 connected to the lower end of the device can transfer the horizontal displacement of the lower concrete beam 14 under the action of an earthquake. Coupled with the change of the upper concrete beam 14 of the device, relative displacement occurs in the structure, and the device reaches an ideal state, playing a certain energy dissipation role.

[0052] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is the difference from other embodiments. The same or similar parts among the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0053] The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A combined energy dissipation and seismic reduction device, characterized in that, it is installed at the joint gap (1) of the building structure; including: a horizontal member (2); the horizontal member (2) is fixed on the bottom surface of the joint gap (1); a hinge frame (3); the hinge frame (3) is fixed on the top surface of the joint gap (1); a vertical member (4); the vertical member (4) is vertically arranged above the horizontal member (2), and there is a gap between the bottom end and the horizontal member (2), and the top end of the vertical member (4) is hinged to the hinge frame (3) through a tension and compression rod (7); there is a gap between the top end of the vertical member (4) and the top surface of the joint gap (1); energy dissipation steel plates (5); the number of the energy dissipation steel plates (5) is two, and they are respectively arranged on both sides of the vertical member (4), and both of the two energy dissipation steel plates (5) are connected between the side wall of the vertical member (4) and the top surface of the horizontal member (2) through first bolts (8); connection plates (6); the number of the connection plates (6) is two, and they are respectively arranged on both sides perpendicular to the arrangement direction of the vertical member (4) and the energy dissipation steel plates (5); the upper parts of the two connection plates (6) are connected to the vertical member (4) through friction energy dissipation shafts (9), and the lower parts of the two connection plates (6) are connected to the horizontal member (2) through second bolts (10).

2. The combined energy dissipation and seismic reduction device according to claim 1, characterized in that, the energy dissipation steel plates (5) are C-shaped steel plates, and the two C-shaped steel plates are symmetrically arranged on both sides of the vertical member (4), and the arc-shaped convex surfaces face each other.

3. The combined energy dissipation and seismic reduction device according to claim 2, characterized in that, mounting plates (11) are vertically fixed on both sides of the vertical member (4) for connecting with the C-shaped steel plates; the top ends of the C-shaped steel plates are connected to the mounting plates (11) through the first bolts (8).

4. The combined energy dissipation and seismic reduction device according to claim 3, characterized in that, stiffening ribs (12) are fixed on both the horizontal member (2) and the vertical member (4); the cross-section of the horizontal member (2) is T-shaped, and the stiffening ribs (12) on the horizontal member (2) are fixed between the web on both sides of the horizontal member (2) and the flange plate at the top; the stiffening ribs (12) on the vertical member (4) are fixed between the two side surfaces of the vertical member (4) and the mounting plates (11).

5. The combined energy dissipation and seismic reduction device according to claim 1, characterized in that, a friction plate is padded between the connection surface of the connection plate (6) and the vertical member (4), and the friction plate has a through hole through which the friction energy dissipation shaft (9) passes.

6. The combined energy dissipation and seismic reduction device according to claim 1, characterized in that, the number of the second bolts (10) connecting the lower parts of the two connection plates (6) and the horizontal member (2) is multiple, and they are arranged in a matrix.

7. The combined energy dissipation and seismic reduction device according to any one of claims 1-6, It is characterized in that the building structure includes concrete columns (13), concrete beams (14) fixed between the concrete columns (13), and shock-absorbing connecting walls (15) vertically fixed on the concrete beams (14), and a node gap (1) is formed between the top surface of the shock-absorbing connecting wall (15) and the concrete beam (14) above it.

8. A combined energy dissipation and shock absorption device according to claim 7, It is characterized in that the articulated frame (3) includes a first embedded plate (16) and an ear plate (17); the first embedded plate (16) is anchored to the bottom surface of the concrete beam (14) above the node gap (1), and the ear plate (17) is welded and fixed to the first embedded plate (16); one end of the tension-compression rod (7) is connected to the ear plate (17), and the other end is hinged to the top side wall of the vertical member (4) through a smooth hinge.

9. A combined energy dissipation and shock absorption device according to claim 8, It is characterized in that the tension-compression rod (7) is horizontally arranged.

10. A combined energy dissipation and shock absorption device according to claim 7, It is characterized in that a second embedded plate (18) is anchored to the top surface of the shock-absorbing connecting wall (15) below the node gap (1), and the second embedded plate (18) is welded and fixed to the horizontal member (2).

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