Buckling-restrained brace device, building structure and mounting method of building structure

Abstract

The invention relates to the technical field of building energy dissipation, and discloses a buckling-restrained brace device, a building structure and a mounting method of the building structure. The buckling-restrained brace device comprises a damping mechanism, a gusset plate and a connecting plate; a first containing cavity is formed in one end of the damping mechanism, a second containing cavity is formed in the other end of the damping mechanism, the gusset plate extends into the first containing cavity and is hinged to the damping mechanism, and the connecting plate extends into the second containing cavity and is welded to the damping mechanism. Meanwhile, overlarge stress at the weld joint can be avoided through hinge joint, only one end needs to be hinged and the other end needs to be welded during installation, installation is more convenient, the technical problems that in the prior art, weld joint stress is concentrated, breakage is prone to occurring, machining precision is high, and installation is complex are solved, and the purposes of reducing weld joint stress, being firmer in welding and improving welding quality are achieved. Meanwhile, the requirement for machining precision is low, and installation is easier.

Description

Technical Field

[0001] The invention relates to the technical field of building energy dissipation, and in particular to an anti-buckling support device, a building structure and an installation method thereof. Background Art

[0002] With the development of industrialized cities and towns and the need for modernization, reducing the damage to people's lives and property caused by the destruction of buildings during earthquakes has become a key task in modern engineering structure design.

[0003] At present, earthquake resistance of building structures generally adopts increasing structural damping and setting up isolation layers to dissipate the energy of earthquake on the structure. Traditional buckling-resistance brace components are mainly composed of internal core materials, external restraining components, unbonded expandable materials and unbonded sliding interfaces, and are connected between adjacent floor slabs. When a strong earthquake occurs, the buckling-resistance brace buckles, has excellent energy dissipation capacity and ductility, and significantly reduces the earthquake damage to the main structure.

[0004] The end connections of existing anti-buckling braces are generally welded or bolted. However, stress concentration is prone to occur at the ends of the anti-buckling braces during welding, and the welds are prone to breakage during earthquakes, resulting in buckling failure. Bolt connections require drilling holes in the anti-buckling braces, which has high requirements for processing accuracy and is complex to install. Summary of the invention

[0005] The purpose of the present invention is to provide an anti-buckling support device, a building structure and an installation method thereof, so as to solve the technical problems in the prior art of stress concentration and easy fracture of welds, high processing precision and complex installation.

[0006] In order to solve the above technical problems, the present invention provides an anti-buckling brace device, including a shock absorbing mechanism, a node plate and a connecting plate;

[0007] A first accommodating cavity is disposed at one end of the damping mechanism, and a second accommodating cavity is disposed at the other end of the damping mechanism. The node plate extends into the first accommodating cavity and is hinged to the damping mechanism. The connecting plate extends into the second accommodating cavity and is welded to the damping mechanism.

[0008] In an optional embodiment, the shock absorbing mechanism includes a shock absorbing rod, a lug plate and a lap plate;

[0009] The ear plate and the lap plate are respectively arranged at two ends of the shock absorbing rod, the ear plate is provided with the first accommodating cavity, the lap plate is provided with the second accommodating cavity, the ear plate is hinged to the node plate, and the lap plate is welded to the connecting plate.

[0010] In an optional embodiment, two ear plates are provided, the two ear plates are arranged in parallel, the first accommodating cavity is provided between the two ear plates, each ear plate is provided with a through hole, the axes of the two through holes are arranged to coincide, and the node plate is hinged to the two through holes respectively through a pin shaft;

[0011] Two lap plates are provided, the two lap plates are arranged on the same plane and spaced apart, and the second accommodating cavity is provided between the two lap plates.

[0012] In an optional embodiment, the shock absorbing mechanism further includes a butt-jointed steel plate;

[0013] The butt joint steel plate is inserted between the two overlapping plates, the butt joint steel plate is connected to the end surface of the shock absorbing rod, and the butt joint steel plate is welded to the end surface of the connecting plate.

[0014] In an optional embodiment, the length of the butt-jointed steel plates is shorter than the length of the lapped plates.

[0015] In an optional embodiment, a conversion plate is provided between the ear plate and the shock absorbing rod, and two ends of the conversion plate are respectively connected to the ear plate and the shock absorbing rod.

[0016] The present invention also provides a building structure, comprising a structural column, a structural beam and the anti-buckling brace device which are arranged perpendicular to each other;

[0017] A plurality of the structural columns and a plurality of the structural beams are provided, and the plurality of the structural columns are provided in parallel with each other, and the plurality of the structural beams are provided in parallel with each other, each of the structural columns is connected to at least two of the structural beams, and each of the structural beams is connected to at least two of the structural columns, and two adjacent structural columns and two adjacent structural beams form a containing space, and the containing space is used to accommodate the shock absorbing mechanism, the node plate and the connecting plate.

[0018] In an optional embodiment, the node plate is arranged on the structural beam, the connecting plate is arranged away from the node plate, and the connecting plate is respectively connected to the structural beam and the structural column.

[0019] In an optional embodiment, two connecting plates are provided, and the two connecting plates are arranged at intervals along the length direction of the structural beam, each connecting plate is connected to the structural beam and the structural column, and each connecting plate is connected to the node plate via one of the shock absorbing mechanisms.

[0020] Some embodiments of the present invention also provide a method for installing the building structure, comprising the following steps:

[0021] The node plate is welded to the structural beam, and the two connection plates are respectively welded to the connection between the structural beam and the structural column;

[0022] The first accommodating chambers of the two damping mechanisms are respectively hinged on the node plates;

[0023] The second accommodating chambers of the two shock absorbing mechanisms are respectively fixed on a connecting plate.

[0024] The present invention provides an anti-buckling support device, comprising a shock absorbing mechanism, a node plate and a connecting plate; a first accommodating cavity is arranged at one end of the shock absorbing mechanism, and a second accommodating cavity is arranged at the other end of the shock absorbing mechanism, the node plate extends into the first accommodating cavity and is hinged with the shock absorbing mechanism, and the connecting plate extends into the second accommodating cavity and is welded to the shock absorbing mechanism. By using different connection methods at both ends of the shock absorbing mechanism, the requirement for high precision during processing is avoided, and at the same time, the excessive stress at the weld can be avoided by hinge connection. During installation, only one end needs to be hinged and the other end can be welded, which makes installation more convenient. The technical problems of stress concentration and easy fracture of welds, high processing precision and complex installation in the prior art are solved, and the technical effects of reducing weld stress, making welding more firm, lowering processing precision requirements and making installation easier are achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a structural schematic diagram of the building structure mentioned in an embodiment of the present invention;

[0026] Figure 2 is a schematic structural diagram of the anti-buckling support device mentioned in an embodiment of the present invention;

[0027] Figure 3 It is a cross-sectional view of the butted steel plate and the lapped plate mentioned in the embodiment of the present invention;

[0028] Figure 4 It is a cross-sectional view of the ear plate mentioned in the embodiment of the present invention.

[0029] In the figure, 1- shock absorbing mechanism; 101- shock absorbing rod; 102- ear plate; 103- lap plate; 104- through hole; 105- docking steel plate; 106- conversion plate; 2- node plate; 3- connection plate; 4- structural column; 5- structural beam. DETAILED DESCRIPTION

[0030] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the related art, earthquake resistance of building structures is generally achieved by increasing structural damping and setting up isolation layers to dissipate the energy of earthquakes on the structures. Traditional buckling-resistance braces are mainly composed of internal core materials, external restraining members, unbonded expandable materials and unbonded sliding interfaces, and are connected between adjacent floor slabs. When a strong earthquake occurs, the buckling-resistance braces buckle. The end connections of existing buckling-resistance braces are generally welded or bolted. However, stress concentration is prone to occur at the ends of the buckling-resistance braces during welding, and the welds are prone to breakage during earthquakes, resulting in buckling failure. Bolted connections require drilling holes in the buckling-resistance braces, which requires high processing accuracy and is complex to install.

[0033] In view of this, if Figure 1-Figure 4 As shown, some embodiments of the present invention provide an anti-buckling support device, including a shock absorbing mechanism, a node plate and a connecting plate; a first accommodating cavity is provided at one end of the shock absorbing mechanism, and a second accommodating cavity is provided at the other end of the shock absorbing mechanism, the node plate extends into the first accommodating cavity and is hinged to the shock absorbing mechanism, and the connecting plate extends into the second accommodating cavity and is welded to the shock absorbing mechanism.

[0034] In the above embodiment, the shock absorbing mechanism can be made of metal material, the shock absorbing mechanism can be deformed and broken so that the shock absorbing mechanism absorbs energy, and a first accommodating chamber and a second accommodating chamber in the shape of a slit can be provided at both ends of the shock absorbing mechanism, the depths of the first accommodating chamber and the second accommodating chamber are respectively parallel to the length direction of the shock absorbing mechanism, and the openings of the first accommodating chamber and the second accommodating chamber are arranged oppositely, the first accommodating chamber and the second accommodating chamber are arranged in parallel, and the openings of the first accommodating chamber and the second accommodating chamber are respectively arranged away from the shock absorbing mechanism, and a node plate and a connecting plate are respectively provided on both sides of the shock absorbing mechanism, wherein the node plate and the connecting plate are both rectangular and in the shape of plates, the node plate and the connecting plate are arranged in parallel, and the node plate extends into the first accommodating chamber. A node plate is provided in a housing cavity and is hinged to the first housing cavity through a hinge shaft, and a connecting plate extends into a second housing cavity, and the connecting plate is welded to the opening of the second housing cavity, so that the two ends of the shock absorbing mechanism can be connected to the node plate and the connecting plate. Since only the node plate needs to be hinged to the first housing cavity, the setting accuracy requirements for the hinge holes on the node plate and the first housing cavity are reduced. When hinged, the diameter of the hinge hole is generally larger than the diameter of the hinge shaft, so that a gap with a width of 2 mm to 4 mm is left between the hinge hole and the hinge shaft. Therefore, when the second housing cavity and the connecting plate are welded, space for releasing stress at the weld can be provided, thereby reducing the stress at the weld and avoiding easy fracture at the weld in the event of an earthquake.

[0035] Some embodiments of the present invention provide an anti-buckling support device, including a shock absorbing mechanism, a node plate and a connecting plate; a first accommodating cavity is provided at one end of the shock absorbing mechanism, and a second accommodating cavity is provided at the other end of the shock absorbing mechanism, the node plate extends into the first accommodating cavity and is hinged to the shock absorbing mechanism, and the connecting plate extends into the second accommodating cavity and is welded to the shock absorbing mechanism. By using different connection methods at both ends of the shock absorbing mechanism, the requirement for high precision during processing is avoided, and at the same time, excessive stress at the weld can be avoided by hinge. During installation, only one end needs to be hinged and the other end can be welded, which makes installation more convenient. The technical problems of stress concentration and easy breakage of welds, high processing precision and complex installation in the prior art are solved, and the technical effects of reducing weld stress, making welding more firm, lowering processing precision requirements and making installation easier are achieved.

[0036] In an optional embodiment, the shock absorbing mechanism includes a shock absorbing rod, an ear plate and a lap plate; the ear plate and the lap plate are respectively arranged at both ends of the shock absorbing rod, the ear plate is provided with a first accommodating cavity, the lap plate is provided with a second accommodating cavity, the ear plate is hinged to the node plate, and the lap plate is welded to the connecting plate.

[0037] In the above embodiments, the shock absorbing rod, the ear plate and the lap plate can all be made of metal. The ear plate and the lap plate are respectively arranged at both ends of the shock absorbing rod and fixed by welding, or are integrally formed.

[0038] In an optional embodiment, two ear plates are provided, the two ear plates are arranged in parallel, a first accommodating cavity is provided between the two ear plates, each ear plate is provided with a through hole, the axes of the two through holes are arranged to coincide, and the node plate is hinged to the two through holes respectively through pins; two lap plates are provided, the two lap plates are arranged on the same plane and arranged at intervals, and a second accommodating cavity is provided between the two lap plates.

[0039] In the above embodiment, the ear plate is in the shape of a sheet, and the outer side of the ear plate can be set to an arc to avoid scratches on the ear plate and to avoid scratching the staff during installation. The two ear plates are parallel to each other and arranged at intervals. Each ear plate is arranged parallel to the node plate. A through hole is set at the center position of each ear plate, and the axes of the two through holes are arranged to coincide with each other. A hinge hole is also correspondingly set on the node plate, so that after the node plate is inserted into the first accommodating cavity, the hinge hole on the node plate is aligned with the two through holes, and the two through holes and the hinge hole are connected by a hinge shaft, so that the ear plate can rotate relative to the node plate through the hinge shaft.

[0040] Two lap plates can be provided, the two lap plates have the same shape, the two lap plates are made of metal, the two lap plates are arranged on the same plane and are arranged at intervals, and the width of the gap between the two lap plates is evenly set, that is, the width of the second accommodating cavity is consistent, the two lap plates are respectively arranged perpendicular to the connecting plate, so that after the connecting plate is inserted into the second accommodating cavity, the two lap plates are respectively perpendicular to the two sides of the connecting plate, and the two lap plates are also arranged perpendicular to the end face of the shock-absorbing rod. After the two ear plates are hinged to the node plate through the hinge shaft, the shock-absorbing rod is rotated to make the connecting plate extend into the second accommodating cavity, and the angle of the shock-absorbing rod and the relative position of the lap plate and the connecting plate are adjusted, and then the lap plates on both sides are welded to the surface of the connecting plate, thereby completing the fixation of the shock-absorbing rod.

[0041] In an optional embodiment, the shock absorbing mechanism further includes a butt joint steel plate; the butt joint steel plate is passed between the two overlapping plates, the butt joint steel plate is connected to the end face of the shock absorbing rod, and the butt joint steel plate is welded to the end face of the connecting plate.

[0042] In the above embodiment, the butt joint steel plate is also in the shape of a plate, and the butt joint steel plate is made of metal. The butt joint steel plate is arranged and welded perpendicular to the end face of the shock-absorbing rod, and the butt joint steel plate and the lap plate are arranged on the same plane. The butt joint steel plate is inserted into the second accommodating cavity, and a cut angle corresponding to the butt joint steel plate is arranged on the connecting plate. When the shock-absorbing rod rotates relative to the node plate through the hinge axis, the connecting plate extends into the second accommodating cavity until the butt joint steel plate corresponds to the cut angle on the connecting plate, and then, the end of the butt joint steel plate close to the cut angle is welded to the cut angle, thereby making the shock-absorbing rod more secure.

[0043] In an optional embodiment, the length of the butted steel plates is shorter than the length of the overlapped plates.

[0044] In the above embodiment, the two lap plates have the same length. The two lap plates are first overlapped on both sides of the connecting plate, and then the butt steel plates are aligned with the cut corners of the connecting plate, and then the lap plates are welded to the butt steel plates to ensure that the lap plates on both sides can be connected to the side walls of the connecting plate by welding, and also to ensure that the cut corners of the connecting plate can be welded to the butt steel plates.

[0045] In an optional embodiment, a conversion plate is provided between the ear plate and the shock absorbing rod, and two ends of the conversion plate are respectively connected to the ear plate and the shock absorbing rod.

[0046] In the above embodiment, the conversion plate can be set to be circular, the conversion plate can be set perpendicular to the length direction of the shock absorbing rod, the two ends of the conversion plate can be welded to the shock absorbing rod and the two ear plates respectively, and the conversion plate can make the connection between the two ear plates and the shock absorbing rod more firmly.

[0047] Some embodiments of the present invention also provide a building structure, including structural columns, structural beams and anti-buckling support devices arranged perpendicular to each other; a plurality of structural columns and structural beams are provided, the plurality of structural columns are arranged parallel to each other, the plurality of structural beams are arranged parallel to each other, each structural column is connected to at least two structural beams, each structural beam is connected to at least two structural columns, two adjacent structural columns and two adjacent structural beams form an accommodating space, and the accommodating space is used to accommodate a shock absorbing mechanism, a node plate and a connecting plate.

[0048] In the above embodiments, both the structural columns and the structural beams can be made of metal or cement. The structural columns are arranged vertically and the structural beams are arranged horizontally so that the structural columns and the structural beams are perpendicular to each other. There can be multiple structural columns and multiple structural beams. The multiple structural columns are arranged in parallel and at intervals in the horizontal direction, and the multiple structural beams are arranged in parallel and at intervals in the vertical direction. Taking two adjacent structural columns and two structural beams as an example, the two adjacent structural columns and two structural beams form a rectangular accommodating space. Shock-absorbing rods, ear plates, lap plates, node plates and connecting plates are arranged in the accommodating space. The node plates and connecting plates are selectively fixed on the structural beams or structural columns, or fixed at the connection between the structural columns and the structural beams, so that when deformation occurs between adjacent structural columns, or deformation occurs between adjacent structural beams, or deformation occurs between adjacent structural columns and structural beams, the shock-absorbing rods can be used to absorb shock and absorb energy, thereby avoiding greater damage to the building and protecting people and property in the building.

[0049] In an optional embodiment, the node plate is arranged on the structural beam, the connecting plate is arranged away from the node plate, and the connecting plate is respectively connected to the structural beam and the structural column.

[0050] In the above embodiment, the node plate is arranged on the side of the structural beam facing the accommodating space, the node plate can be welded to the structural beam, the node plate is in the shape of a plate, the node plate can be consistent in distance with the structural columns on both sides, and the connecting plate can be arranged opposite to the node plate, and the connecting plate can be arranged at the corner of the accommodating cavity, that is, the connecting plate can be welded at the connection between the structural beam and the structural column, so that the connecting plate can be connected to the structural beam and the structure respectively, so that when the structural beam or the structural column is deformed, shock absorption and energy absorption can be carried out through the shock-absorbing rod.

[0051] In an optional embodiment, two connecting plates are provided, the two connecting plates are spaced apart along the length direction of the structural beam, each connecting plate is connected to the structural beam and the structural column, and each connecting plate is connected to the node plate via a shock absorbing mechanism.

[0052] In the above embodiment, the two connecting plates have the same shape, are respectively arranged at two corners of the accommodating space, are respectively arranged away from the node plates, are respectively welded to the same structural beam and to different structural columns, and each connecting plate is provided with a cut angle on the side facing the node plate. Two shock-absorbing rods are also provided, and two hinge holes can be provided on the node plate so that one end of each shock-absorbing rod can be hinged to the node plate, and the other end can be welded to the connecting plate, thereby improving the shock-absorbing and energy-absorbing capacity through the two shock-absorbing rods, and can also absorb energy and shock when each structural column or structural beam is deformed or displaced.

[0053] Some embodiments of the present invention also provide a method for installing a building structure, comprising the following steps: welding a node plate to a structural beam, and respectively welding two connecting plates to the connection between the structural beam and the structural column; respectively hingedly connecting the first accommodating cavities of two shock-absorbing mechanisms to the node plates; and respectively fixing the second accommodating cavities of the two shock-absorbing mechanisms to a connecting plate.

[0054] In the above embodiment, the midpoint of the upper structural beam is selected, and then the hinge hole of the node plate is set downward, and the node plate is welded to the midpoint of the upper structural beam, and then a connecting plate is welded at the corners of the two lower accommodating spaces, so that each connecting plate is respectively connected to the lower structural beam, and the two connecting plates are respectively connected to the two structural columns on both sides, and then the two shock-absorbing rods are lifted, and the node plates are respectively inserted into the first accommodating cavities on the two shock-absorbing rods, and the ear plates on the two shock-absorbing rods are respectively connected to the node plates through two hinge shafts to preliminarily fix the two shock-absorbing rods, and then each shock-absorbing rod is rotated relative to the node plate so that the second accommodating cavity on each shock-absorbing rod is aligned with a connecting plate, and then continue to rotate until the butt steel plate is aligned with the cut corner of the connecting plate, and then the butt steel plate and the lap plate are respectively welded to the connecting plate so that the shock-absorbing rod can be fixed. At this time, the two shock-absorbing rods are facing each other and set at an angle.

[0055] 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 principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A buckling-resistance brace device, characterized in that: It includes a shock absorbing mechanism, a node plate and a connecting plate; A first accommodating cavity is disposed at one end of the damping mechanism, and a second accommodating cavity is disposed at the other end of the damping mechanism. The node plate extends into the first accommodating cavity and is hinged to the damping mechanism. The connecting plate extends into the second accommodating cavity and is welded to the damping mechanism.

2. The buckling-resistance brace according to claim 1, characterized in that: The shock absorbing mechanism comprises a shock absorbing rod, a lug plate and a lap plate; The ear plate and the lap plate are respectively arranged at two ends of the shock absorbing rod, the ear plate is provided with the first accommodating cavity, the lap plate is provided with the second accommodating cavity, the ear plate is hinged to the node plate, and the lap plate is welded to the connecting plate.

3. The buckling-resistance brace according to claim 2, characterized in that: The ear plates are provided with two, the two ear plates are arranged in parallel, the first accommodating cavity is provided between the two ear plates, each ear plate is provided with a through hole, the axes of the two through holes are arranged to coincide, and the node plate is hinged to the two through holes respectively through a pin shaft; Two lap plates are provided, the two lap plates are arranged on the same plane and spaced apart, and the second accommodating cavity is provided between the two lap plates.

4. The buckling-resistance brace according to claim 2, characterized in that: The shock absorbing mechanism also includes a butt-jointed steel plate; The butt joint steel plate is inserted between the two overlapping plates, the butt joint steel plate is connected to the end surface of the shock absorbing rod, and the butt joint steel plate is welded to the end surface of the connecting plate.

5. The buckling-resistance brace according to claim 4, characterized in that: The length of the butt joint steel plate is shorter than the length of the overlapped plate.

6. The buckling-resistance brace according to claim 2, characterized in that: A conversion plate is arranged between the ear plate and the shock absorbing rod, and two ends of the conversion plate are respectively connected to the ear plate and the shock absorbing rod.

7. A building structure, characterized in that: It comprises a structural column and a structural beam arranged perpendicular to each other and an anti-buckling brace as described in any one of claims 1 to 6; A plurality of the structural columns and a plurality of the structural beams are provided, and the plurality of the structural columns are provided in parallel with each other, and the plurality of the structural beams are provided in parallel with each other, each of the structural columns is connected to at least two of the structural beams, and each of the structural beams is connected to at least two of the structural columns, and two adjacent structural columns and two adjacent structural beams form a containing space, and the containing space is used to accommodate the shock absorbing mechanism, the node plate and the connecting plate.

8. The building structure according to claim 7, characterized in that The node plate is arranged on the structural beam, the connection plate is arranged away from the node plate, and the connection plate is respectively connected to the structural beam and the structural column.

9. The building structure according to claim 8, characterized in that There are two connecting plates, which are spaced apart along the length direction of the structural beam, each connecting plate is connected to the structural beam and the structural column, and each connecting plate is connected to the node plate via a shock absorbing mechanism.

10. A method for installing a building structure according to claim 7, characterized in that: The following steps are involved: The node plate is welded to the structural beam, and the two connection plates are respectively welded to the connection between the structural beam and the structural column; The first accommodating chambers of the two damping mechanisms are respectively hinged on the node plates; The second accommodating chambers of the two shock absorbing mechanisms are respectively fixed on a connecting plate.

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