A self-centering cable-bracing device with an out-of-plane buckling metal damper

Abstract

The present invention discloses a self-centering cable bracing device with an out-of-plane buckling metal damper, which comprises a base, a disc spring group, a wall fixator, an out-of-plane buckling metal damper, a U-shaped connecting groove, a high-strength screw rod, a connecting steel block, a limit bolt and an end distance adjustment fixator. The present invention is connected to the wall through the wall fixator, and the self-centering is provided by the disc spring group and the energy dissipation is carried out by the out-of-plane buckling metal damper. In the present invention, the device is fixed in the wall by bolts through the wall fixator, and the disc spring group is connected in series in the high-strength screw rod connected to the base. The prestress is applied to the disc spring group by adjusting the end distance adjustment fixator, and the out-of-plane buckling metal damper is fixed in the U-shaped connecting groove welded to the wall fixator by bolts. Under the action of external force, the high-strength screw rod drives the disc spring group and the out-of-plane buckling metal damper to move to achieve the purpose of self-centering and energy dissipation. The present invention is simple to manufacture, convenient for construction and installation, low in cost, and has strong energy dissipation and self-centering capabilities.

Description

Technical Field

[0001] The invention relates to the field of energy dissipation and self-centering, and in particular to a self-centering cable support device with an out-of-plane buckling metal damper. Background Art

[0002] At present, traditional damper devices and self-centering systems can only play a unilateral role in energy consumption or self-centering. There are few devices that take both into account. In addition, the energy consumption and self-centering capabilities of traditional damper devices and self-centering systems are usually fixed and cannot be reasonably adjusted as the use environment changes. They have large restrictions on use, single functions, and generally have complex structures, difficult maintenance, and high costs.

[0003] Patent No. CN 112942612U discloses a replaceable assembled tension-compression metal damper for a corner, which welds a cross-core shear plate to the upper and lower end plates, and sets internal energy-absorbing corrugated covering plates on both sides of the cross-core shear plate for energy absorption. The disadvantage of this device is that the energy absorption effect provided is small and only has energy absorption effect, and no self-centering function is provided.

[0004] Patent No. CN113279495U discloses an axial metal damper, which is composed of a force transmission sleeve, a force transmission shaft, and an energy dissipation plate. The force transmission shaft is arranged in the force transmission sleeve along the length direction, and multiple energy dissipation plates are arranged on the periphery of the force transmission shaft, so that axial shear energy dissipation is performed when subjected to force. The disadvantage of this device is that the energy dissipation effect of the device is small, it cannot be adjusted according to different environments and forces, and it has no self-centering system.

[0005] In response to the above-mentioned situation, a self-centering cable-stayed device with an out-of-plane buckling metal damper is proposed, which has both damping energy dissipation function and self-centering ability. The energy dissipation and self-centering ability of the device can be modularly replaced according to the structural bearing capacity requirements to better adapt to the actual needs of various projects. The device has a simple structure, strong energy dissipation and self-centering ability, low cost, easy replacement and convenient maintenance. The working mechanism of the device is to provide self-centering ability through a disc spring group and an out-of-plane buckling metal damper to provide energy dissipation ability, thereby achieving the purposes of energy dissipation and self-centering, and has good application prospects. Summary of the invention

[0006] The purpose of the present invention is to provide a self-centering cable support device with an out-of-plane buckling metal damper, so as to solve the problem that traditional dampers and self-centering systems can usually only have unilateral energy consumption or self-centering effect, and cannot take both into account. In addition, under normal circumstances, the energy consumption and self-centering capabilities of traditional damper devices and self-centering systems are difficult to be replaced in time according to the bearing capacity of the structure to better adapt to various actual engineering needs. The components are expensive, the production process is complicated, the installation is inconvenient, the maintenance is complicated, the self-centering ability is weak, the energy consumption effect is small, and the long-term stress relaxation is large.

[0007] To achieve the above object, the present invention provides the following technical solution: a self-centering cable bracing device with an out-of-plane buckling metal damper, which includes an end distance adjuster and fixer, a high-strength screw rod, a limit bolt, a connecting steel block, an out-of-plane buckling metal damper, a U-shaped connecting groove, a wall fixer, a disc spring group and a base from top to bottom. The out-of-plane buckling metal damper includes a connecting steel block, a diamond-hole steel plate, a large steel plate and a small steel plate.

[0008] A hole is drilled in the middle of the base. One end of the high-strength screw rod is inserted into the base and passes through a certain distance and is tightened by a nut to fix it. The high-strength screw rod is made of high-strength steel material. The disc spring group is passed through the high-strength screw rod and is serially sleeved between the base and the high-strength screw rod, and is located below the bottom surface of the wall fixer. The disc spring group is in contact with the bottom surfaces of both the base and the wall fixer but is not fixed, and each disc spring serially connected in the disc spring group is in contact with each other. The surface of the disc spring farthest from the base in the disc spring group is in contact with the bottom surface of the wall fixer but is not fixed. The two sides of the wall fixer are fixed to the wall. Holes are drilled in the two sides of the wall fixer and the wall surface respectively, and the wall fixer is fixed to the wall by bolts. The upper surface of the wall fixer is fixed to the U-shaped connecting groove by welding to form an integral body.

[0009] One side of the diamond-hole steel plate of the out-of-plane buckling metal damper is welded to the large steel plate and the other side is welded to the small steel plate to form an integral body. The diamond-hole steel plates are divided into upper and lower layers by series and parallel connection, and are fixed to the large steel plate and the small steel plate by welding according to a certain spacing. A connecting steel block is arranged between the left and right small steel plates, and the connecting steel block is fixed to the left and right small steel plates by welding so that the damper is fixed into an integral body. The out-of-plane buckling metal damper is fixed to the U-shaped connecting groove by bolts. Holes are drilled in the large steel plate of the out-of-plane buckling metal damper, and holes are drilled at the corresponding positions of the U-shaped connecting groove. The out-of-plane buckling metal damper is fixed to the U-shaped connecting groove by bolts, so that the out-of-plane buckling metal damper, the U-shaped connecting groove and the wall fixer form an integral body. A reserved hole is provided in the middle of the connecting steel block, and the high-strength screw rod passes through the reserved hole of the connecting steel block. The connecting steel block is fixed to the high-strength screw rod by two limit bolts. When the component is subjected to an external force, the external force is transmitted to the high-strength screw rod, and the out-of-plane buckling metal damper is driven by the high-strength screw rod to move to achieve the purpose of energy dissipation.

[0010] The disc spring group is in contact with the base, but the two are not fixed. The disc spring group is in contact with the bottom surface of the wall fixer, but the two are not fixed.

[0011] The size and number of the disc spring group are not fixed and can be adjusted and replaced according to the magnitude of the external force. The size and number of the diamond-hole steel plates in the out-of-plane buckling metal damper are not fixed, and can be adjusted and replaced according to the magnitude of the external force during energy dissipation.

[0012] The high-strength screw passes through a reserved hole in the beam for a certain distance. By adjusting the distance from the end distance adjuster to the top of the high-strength screw, the disc spring group is compressed, realizing the application of prestress to the disc spring group. After the disc spring group is compressed to obtain prestress, the limit bolts at both ends of the connecting steel block are tightened to make the entire component form a whole.

[0013] A hole is drilled in the middle of the connecting steel block. Along the reserved hole in the middle of the connecting steel block, holes are drilled at the same position in the middle of the U-shaped connecting groove and at the same position in the middle of the wall fixator. The hole diameter is slightly larger than the diameter of the high-strength bolt, so that the high-strength bolt can smoothly penetrate the connecting steel block, the U-shaped connecting groove and the wall fixator.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The present invention overcomes the situation that traditional dampers and self-centering systems can only consume energy unilaterally or cannot take both self-centering effects into account. By using a disc spring group to provide self-centering ability and an out-of-plane buckling metal damper to provide energy dissipation ability, a combined mechanism of damping and self-centering is achieved, and good energy dissipation and self-centering effects can be achieved.

[0016] 2. The present invention overcomes the problem that the size and capacity of a general device are fixed after production and cannot be adjusted according to different use environments and structures. By changing the size and quantity of the disc spring group and the size and quantity of the diamond-hole steel plate, modular replacement can be realized according to the bearing capacity of the structure, which is more conducive to application in various environments and structures.

[0017] 3. The present invention can overcome the disadvantages of common dampers and self-centering system devices, such as complex production processes, high costs, short service lives, and difficult component replacement. It improves the energy dissipation effect and self-centering ability, and realizes the purpose of combining the two abilities of damping and self-centering. At the same time, the device is convenient for replacing components, has a long service life, low cost, and is easy to use, which is conducive to its popularization. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the present invention, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is the total three-dimensional structure diagram of a self-centering cable strut device with an out-of-plane buckling metal damper of the present invention;

[0020] Figure 2 It is the top view of a self-centering cable strut device with an out-of-plane buckling metal damper of the present invention;

[0021] Figure 3 This is a side view of a self - centering cable bracing device with an out - of - plane buckling metal damper according to the present invention;

[0022] Figure 4 This is a cross - sectional view of the out - of - plane buckling metal damper of a self - centering cable bracing device with an out - of - plane buckling metal damper according to the present invention;

[0023] In the figure, 1 - base, 2 - disc spring group, 3 - wall fixator, 4 - out - of - plane buckling metal damper, 5 - U - shaped connecting groove, 6 - high - strength screw, 7 - connecting steel block, 8 - limit bolt, 9 - end distance - adjusting fixator, 10 - diamond - hole steel plate, 11 - large steel plate, 12 - small steel plate. Detailed implementation manners

[0024] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by other ordinary technical personnel in the art without making creative and breakthrough labor fall within the protection scope of the present invention.

[0025] Combined with Figures 1 to 4 As shown, a self - centering cable bracing device with an out - of - plane buckling metal damper includes, from top to bottom, an end distance - adjusting fixator 9, a high - strength screw 6, a limit bolt 8, a connecting steel block 7, an out - of - plane buckling metal damper 4, a U - shaped connecting groove 5, a wall fixator 3, a disc spring group 2, and a base 1. Among them, the out - of - plane buckling metal damper 4 includes a connecting steel block 7, a diamond - hole steel plate 10, a large steel plate 11, and a small steel plate 12.

[0026] In this embodiment, one end of the high - strength screw 6 passes through a part of the base 1 for a certain distance and is then tightened and fixed with a nut. Through the high - strength screw 6, twenty disc springs are serially sleeved from the other end of the high - strength screw 6 to form a disc spring group 2 and placed on the base 1. The disc spring group 2 is in contact with the base 1 but not fixed. Through the holes reserved on the wall fixator 3, the wall fixator 3 is sleeved on the high - strength screw 6 so that the bottom surface of the wall fixator 3 is in contact with the disc spring group 2 but the two are not fixed. Through the holes reserved on the U - shaped connecting groove 5, the U - shaped connecting groove 5 is sleeved on the high - strength screw 6, and the U - shaped connecting groove 5 is fixed to the wall fixator 3 as a whole by welding.

[0027] In this embodiment, two limiting bolts 8 are screwed into the high-strength screw rod 6, and the connecting steel block 7 is sleeved on the high-strength screw rod 6 at a certain distance above the upper end of the U-shaped connecting groove 5. One limiting bolt 8 is below the connecting steel block 7, and one limiting bolt 8 is above the connecting steel block 7. One side of the diamond hole steel plate 10 of the out-of-plane buckling metal damper 4 is welded to the large steel plate 11, and one side is welded to the small steel plate 12. Subsequently, the positions of the limiting bolts 8 and the connecting steel block 7 are adjusted, and the left and right small steel plates 12 are fixed to the connecting steel block 7 by welding, so that the damper is connected into a whole. The out-of-plane buckling metal damper 4 is fixed to the U-shaped connecting groove 5 by bolts through the reserved holes on the large steel plate 11 and the U-shaped connecting groove 5.

[0028] In this embodiment, the limiting bolts 8 are not tightened at the beginning. The end of the high-strength screw rod 6 away from the base 1 is inserted into the reserved hole on the beam and extends a certain distance above the beam top. The prestressed disc spring group 2 is applied with prestress by adjusting the end distance adjuster 9. After applying the prestress, the limiting bolts 8 are tightened so that all components are combined to form a whole.

[0029] In this embodiment, all components are detachable and easy to replace, which is suitable for relatively complex environments.

[0030] Although the present invention has been specifically and detailedly described in general terms above, based on this invention, some modifications and adjustments can be made. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the invention should be included within the protection scope of the invention.

Claims

1. A self - centering cable - bracing device with an out - of - plane buckling metal damper, Characterized in that: It includes an end - distance adjuster (9), high - strength screw (6), limit bolt (8), connecting steel block (7), out - of - plane buckling metal damper (4), U - shaped connecting groove (5), wall fixer (3), disc spring group (2), base (1). The out - of - plane buckling metal damper (4) includes a connecting steel block (7), diamond - hole steel plate (10), large steel plate (11), and small steel plate (12). One side of the diamond - hole steel plate (10) of the out - of - plane buckling metal damper (4) is welded to the large steel plate (11), and the other side is welded to the small steel plate (12). The left and right small steel plates (12) are connected into a whole through the connecting steel block (7); one end of the high - strength screw (6) passes through the base (1) and is tightened and fixed with a nut. The disc spring group (2) is serially sleeved in the high - strength screw (6) connected to the base (1); a hole is drilled in the middle of the connecting steel block (7), a hole is drilled in the middle of the U - shaped connecting groove (5), and a hole is drilled in the middle of the wall fixer (3). The hole diameter is slightly larger than the diameter of the high - strength screw (6), so that the high - strength screw (6) passes through the connecting steel block (7), U - shaped connecting groove (5), and wall fixer (3); the wall fixer (3) is fixed to the wall by bolts, and the wall fixer (3) and the U - shaped connecting groove (5) form a whole by welding; the out - of - plane buckling metal damper (4) is fixed in the U - shaped connecting groove (5) by bolts through the reserved holes on the large steel plate (11). The out - of - plane buckling metal damper (4) is welded to the connecting steel block (7) through the small steel plate (12). The connecting steel block (7) is fixed in the high - strength screw (6) by the limit bolt (8). When the component is subjected to an external force, the out - of - plane buckling metal damper (4) is driven to move by the high - strength screw (6) to achieve energy dissipation.

2. The self - centering cable - bracing device with an out - of - plane buckling metal damper according to claim 1, Characterized in that: The disc spring group (2) is in contact with but not fixed to both the base (1) and the wall fixer (3).

3. The self - centering cable - bracing device with an out - of - plane buckling metal damper according to claim 1, Characterized in that: The size and quantity of the disc spring group (2) are adjusted and replaced according to the magnitude of the force, and the size and quantity of the diamond - hole steel plate (10) in the out - of - plane buckling metal damper (4) are adjusted and replaced according to the magnitude of the force.

4. The self - centering cable - bracing device with an out - of - plane buckling metal damper according to claim 1, Characterized in that: The high - strength screw (6) passes through the reserved hole on the beam, and the prestress of the disc spring group (2) is applied by adjusting the end - distance adjuster (9).

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