Buckling restrained brace for seismic reinforcement of existing building

Abstract

The utility model discloses a buckling restrained brace for seismic reinforcement of an existing building, which relates to the technical field of constructional engineering and comprises a structural main beam, a structural cross beam and a connecting component. A mounting plate is arranged on the buckling restrained brace; the connecting assembly comprises a connecting plate abutting against the structural cross beam and abutting pieces arranged at the two ends of the connecting plate, an adjusting piece is arranged on the connecting plate, and the abutting pieces are connected with the adjusting piece; the adjusting piece rotates under the action of external force so as to drive the abutting piece to abut against the structural main beam. The mounting plate is detachably connected with the connecting plate; according to the buckling restrained brace, the connecting plate is connected with the mounting plate on the buckling restrained brace, and the abutting piece abuts against the structural main beam under the adjustment of the adjusting piece, so that the whole buckling restrained brace is mounted in a building under the condition that a structural cross beam is not damaged, the original bearing capacity of the building is maintained, and seismic kinetic energy is consumed through the buckling restrained brace; and meanwhile, secondary damage cannot be caused to the structural cross beam in the process of consuming seismic kinetic energy.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering, in particular to a buckling restrained brace for seismic reinforcement of an existing building. Background Art

[0002] In earthquake-prone areas, earthquake waves that are destructive to houses are divided into transverse waves and longitudinal waves. Longitudinal waves generally cause houses to shake up and down, with less damage to the overall structure of the house, while transverse waves cause a certain torsion on the top of the house, which is more destructive. In order to reduce the damage of transverse waves to the house structure, buckling restrained brace structures came into being. Buckling restrained braces can provide great lateral stiffness and bearing capacity for frames or bent structures. Buckling restrained brace systems are widely used in building structures. The principle is to provide additional damping ratio and stiffness through the relative deformation and relative velocity of the energy dissipator, and guide the energy input into the structure by the earthquake to specially set mechanisms or components for absorption and dissipation to protect the safety of the main structure. Energy dissipation and shock absorption technology can reduce the seismic response of the structure by 20% to 40%, thereby increasing the seismic resistance of the structure. It is a new technology and method to reduce seismic response and earthquake damage.

[0003] The current buckling restrained support structure is generally connected to the main structure by welding the connecting plate to the embedded plate exposed outside the concrete. After drilling holes on the concrete beam, it is connected to the embedded parts through screws, which will damage the overall structure of the concrete beam and reduce the bearing capacity of the concrete beam. Figure 1 .

[0004] For example, the utility model with patent number CN216689748U discloses a buckling restraint support structure arrangement system for buildings, including frame columns, frame beams, buckling restraint supports and connecting node elements. A rectangle is formed between the frame columns and the frame beams. There are four buckling restraint supports, and both ends of each buckling restraint support are respectively fixed to the middle of the frame column and the frame beam through connecting node elements. The four buckling restraint supports form a diamond-shaped building window opening. Compared with most existing support structure systems, there is no interference with the middle space and it has excellent building lighting function. In this patent, bolts and anchors are driven into the building structure to install the overall buckling restraint system in the building structure. The main structure of the building structure is damaged and the bearing capacity is reduced accordingly. Utility Model Content

[0005] The main purpose of the utility model is to provide a buckling restrained brace for seismic reinforcement of existing buildings, which is used to solve the problem that in the existing buckling restrained brace system, the buckling restrained brace is installed by damaging the main structure of the building, causing damage to the main structure of the building and reducing the bearing capacity.

[0006] To achieve the above-mentioned purpose, the utility model provides a buckling restrained support for seismic reinforcement of an existing building, comprising a structural main beam and a structural cross beam; a mounting plate is provided on the buckling restrained support; and further comprising:

[0007] The connecting assembly includes a connecting plate abutting against a structural cross beam and abutting members arranged at both ends of the connecting plate; an adjusting member is arranged on the connecting plate; the abutting member is connected to the adjusting member; the adjusting member rotates under the action of an external force to drive the abutting member to abut against the structural main beam; the mounting plate and the connecting plate are detachably connected.

[0008] As a further improvement of the utility model, it also includes a clamping member; the clamping member includes a clamping plate, a fixing plate arranged inside the clamping plate, and a fixing rod arranged on the clamping plate; the clamping plate is respectively installed on the connecting plate and the adjusting member; the fixing rod is rotatably connected to the fixing plate.

[0009] As a further improvement of the utility model, the adjusting member includes an adjusting screw arranged on a connecting plate and a locking member arranged on the adjusting screw; a supporting base plate is provided on the connecting plate; the adjusting screw is installed in the supporting base plate; the locking member rotates under the action of an external force to fix the position of the adjusting screw relative to the supporting base plate; the abutment member includes an abutment plate arranged at the end of the adjusting screw.

[0010] As a further improvement of the utility model, reinforcing plates are provided at intervals on the adjusting screw; and the reinforcing plates are in contact with the structural crossbeam.

[0011] As a further improvement of the present invention, the locking member includes a locking nut arranged on the adjusting screw; the locking nut abuts against the supporting base plate.

[0012] As a further improvement of the utility model, the locking member includes a locking screw sleeve arranged on the supporting base plate; the adjusting screw is threadedly connected to the locking screw sleeve, and one end of the adjusting screw away from the locking screw sleeve is rotatably connected to the abutment plate.

[0013] The beneficial effects of the utility model are embodied in:

[0014] By setting a connecting plate to be connected with the mounting plate on the buckling restraint support, and adjusting the adjusting member to make the abutting member abut against the main beam of the structure, the entire buckling restraint can be installed in the building without damaging the structural beam, thereby maintaining the original bearing capacity of the building, and consuming the seismic energy through the buckling restraint support. At the same time, no secondary damage will be caused to the structural beam in the process of consuming the seismic energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of the buckling restrained brace for seismic reinforcement of an existing building;

[0016] Figure 2 It is a schematic diagram of the overall structure of a buckling restrained brace for seismic reinforcement of an existing building according to the utility model;

[0017] Figure 3 It is another overall structural schematic diagram of a buckling restrained brace for seismic reinforcement of an existing building according to the utility model;

[0018] Figure 4 It is a schematic diagram of a clamping member of a buckling restrained brace for seismic reinforcement of an existing building according to the utility model;

[0019] Description of reference numerals:

[0020] 1. Structural main beam; 2. Structural cross beam; 3. Mounting plate; 4. Connecting plate; 5. Abutment; 501. Abutment plate; 502. Sliding sleeve; 6. Adjustment member; 601. Adjustment screw; 602. Locking member; 6021. Locking nut; 6022. Locking nut sleeve; 7. Clamping member; 701. Clamping plate; 702. Fixing plate; 703. Fixing rod; 8. Support base plate; 9. Stiffening plate; 10. Reinforcement plate; 11. Buckling restraint support. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] In one embodiment, see Figure 2 The utility model discloses a buckling restrained brace for seismic reinforcement of an existing building, comprising a structural main beam 1, a structural cross beam 2, and a connecting assembly.

[0023] Among them, a mounting plate 3 is provided on the buckling restraint support 11; the connecting assembly includes a connecting plate 4 abutting against the structural crossbeam 2, and abutting members 5 arranged at both ends of the connecting plate 4, and an adjusting member 6 is provided on the connecting plate 4, and the abutting member 5 is connected to the adjusting member 6; the adjusting member 6 rotates under the action of external force to drive the abutting member 5 to abut against the structural main beam 1; the mounting plate 3 and the connecting plate 4 are detachably connected.

[0024] Preferably, through holes are respectively provided on the connecting plate 4 and the mounting plate 3, and the connecting plate 4 and the mounting plate 3 are connected by bolts.

[0025] For further information, see Figure 4, and also includes a clamping member 7, the clamping member 7 includes a clamping plate 701, a fixing plate 702 arranged inside the clamping plate 701, and a fixing rod 703 arranged on the clamping plate 701, and the clamping plate 701 is respectively installed on the connecting plate 4 and the adjusting member 6; the fixing rod 703 is rotatably connected to the fixing plate 702.

[0026] Preferably, the clamping plate 701 and the connecting plate 4 form a “U”-shaped structure, and the clamping plate 701 is held on the structural beam 2 .

[0027] Preferably, the clamping plate 701 is provided with a first screw hole, and the fixing rod 703 is connected to the first screw hole through a thread; the fixing plate 702 is provided with a rotating hole, and the fixing rod 703 is rotatably connected to the rotating hole.

[0028] In the above arrangement, the clamping plate 701 located at the connecting plate 4 is clamped on the structural beam 2, and the fixing rod 703 there is rotated, and the fixing plate 702 is driven to move toward the structural beam 2 under the action of the thread, thereby abutting against the structural beam 2, so that the connecting plate 4, the adjusting member 6, and the abutting member 5 are connected to the structural beam 2.

[0029] For further information, see Figure 2 The adjusting member 6 includes an adjusting screw 601 arranged on the connecting plate 4 and a locking member 602 arranged on the adjusting screw 601; a supporting base plate 8 is provided on the connecting plate 4, and the adjusting screw 601 is installed in the supporting base plate 8. The locking member 602 rotates under the action of external force to fix the position of the adjusting screw 601 relative to the supporting base plate 8; the abutting member 5 includes an abutting plate 501 arranged at the end of the adjusting screw 601.

[0030] Preferably, the support base plate 8 is arranged perpendicular to the connecting plate 4 , the support base plate 8 is welded to both ends of the connecting plate 4 , and a stiffening plate 9 is provided between the support base plate 8 and the connecting plate 4 .

[0031] Preferably, a hole is provided on the supporting base plate 8, and one end of the adjusting screw 601 passes through the hole and is connected to the supporting base plate 8.

[0032] For further information, see Figure 2 A reinforcing plate 10 is provided on the adjusting screw 601 at intervals, and the reinforcing plate 10 abuts against the structural cross beam 2.

[0033] Preferably, one end of the adjusting screw 601 away from the abutment plate 501 is provided with a thread, and the rest is a smooth rod. The reinforcing plate 10 is arranged on the smooth rod part of the adjusting screw 601. When the adjusting screw 601 is pushed by force to abut the abutment plate 501 and abut against the structural main beam 1, the reinforcing plate 10 abuts against the structural cross beam 2, thereby enhancing the strength of the adjusting screw 601 and preventing the adjusting screw 601 from bending under force.

[0034] For further information, see Figure 2The locking member 602 includes a locking nut 6021 disposed on the adjusting screw 601 , and the locking nut 6021 abuts against the supporting base plate 8 .

[0035] Preferably, the locking cap is arranged on the adjusting screw 601 between the supporting base plate 8 and the abutment plate 501. After the abutment plate 501 is abutted against the structural main beam 1, the locking nut 6021 is rotated. Under the action of the thread, the adjusting screw 601 moves toward the structural main beam 1, thereby pushing the abutment plate 501 to abut against the structural main beam 1.

[0036] For further information, see Figure 3 The locking member 602 includes a locking screw sleeve 6022 disposed on the supporting base plate 8 , the adjusting screw 601 is threadedly connected to the locking screw sleeve 6022 , and one end of the adjusting screw 601 away from the locking screw sleeve 6022 is rotatably connected to the abutment plate 501 .

[0037] Preferably, the locking screw sleeve 6022 is coaxially arranged with the hole, and one end of the adjusting screw 601 having a thread is threadedly connected to the locking screw sleeve 6022 .

[0038] Preferably, a sleeve 502 is provided on the abutment plate 501, and the sleeve 502 is a hollow cylinder with openings at both ends. One end of the sleeve 502 is welded to the abutment plate 501, and one end of the adjusting screw 601 is rotated and located in the sleeve 502; by rotating the adjusting screw 601, under the action of the thread, the circular locking screw sleeve 6022 of the adjusting screw 601 moves, thereby pushing the abutment plate 501 to abut against the main beam 1 of the structure.

[0039] In this embodiment, the connecting plate 4, the adjusting screw 601, and the abutting plate 501 are connected to the structural cross beam 2 and the structural main beam 1 of the building structure through the clamping plate 701. By rotating the locking piece 602, the adjusting screw 601 is driven to move toward the structural main beam 1 under the action of the thread, so that the abutting plate 501 abuts against the structural main beam 1, and then the clamping plate 701 on the adjusting screw 601 is connected to the structural cross beam 2, so that the buckling restraint support 11 is connected to the structural cross beam 2 and the structural main beam 1 of the building without destroying the structural cross beam 2. During the earthquake-resistant process, the adjusting screw 601, the abutting plate 501, and the clamping plate 701 are connected to the structural cross beam 2 and the structural main beam 1 to consume the seismic energy.

[0040] 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 in the protection scope of the present invention.

Claims

1. A buckling restrained support for seismic reinforcement of an existing building, comprising a structural main beam (1) and a structural cross beam (2); a mounting plate (3) is provided on the buckling restrained support (11); characterized in that: Also includes: The connection assembly comprises a connection plate (4) abutting against a structural cross beam (2) and abutting members (5) arranged at both ends of the connection plate (4); an adjusting member (6) is arranged on the connection plate (4); the abutting member (5) is connected to the adjusting member (6); the adjusting member (6) rotates under the action of an external force to drive the abutting member (5) to abut against the structural main beam (1); and the mounting plate (3) and the connection plate (4) are detachably connected.

2. The buckling restrained brace for seismic reinforcement of an existing building according to claim 1, characterized in that: The invention also comprises a clamping member (7); the clamping member (7) comprises a clamping plate (701), a fixing plate (702) arranged inside the clamping plate (701), and a fixing rod (703) arranged on the clamping plate (701); the clamping plate (701) is respectively mounted on the connecting plate (4) and the adjusting member (6); the fixing rod (703) is rotatably connected to the fixing plate (702).

3. The buckling restrained brace for seismic reinforcement of an existing building according to claim 2, characterized in that: The adjusting member (6) comprises an adjusting screw (601) arranged on the connecting plate (4) and a locking member (602) arranged on the adjusting screw (601); a supporting base plate (8) is arranged on the connecting plate (4); the adjusting screw (601) is installed in the supporting base plate (8); the locking member (602) rotates under the action of an external force to fix the position of the adjusting screw (601) relative to the supporting base plate (8); and the abutting member (5) comprises an abutting plate (501) arranged at the end of the adjusting screw (601).

4. The buckling restrained brace for seismic reinforcement of existing buildings according to claim 3, characterized in that: A reinforcing plate (10) is provided at intervals on the adjusting screw rod (601); the reinforcing plate (10) is in contact with the structural crossbeam (2).

5. The buckling restrained brace for seismic reinforcement of existing buildings according to claim 4, characterized in that: The locking member (602) comprises a locking nut (6021) arranged on the adjusting screw (601); the locking nut (6021) abuts against the supporting base plate (8).

6. The buckling restrained brace for seismic reinforcement of an existing building according to claim 4, characterized in that: The locking member (602) comprises a locking screw sleeve (6022) arranged on the supporting base plate (8); the adjusting screw rod (601) is threadedly connected to the locking screw sleeve (6022); and one end of the adjusting screw rod (601) away from the locking screw sleeve (6022) is rotatably connected to the abutment plate (501).

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