A steel-wood self-resetting buckling restraint support device

Abstract

The present invention relates to the field of buckling restraint technology, specifically, a steel-wood self-resetting buckling restraint support device, wherein a steel plate 2 is installed on the inner surface of the stiffening rib unit, a yield unit is arranged on one end surface of the cross-shaped steel 1, and a reset unit is arranged on the outer surface of the yield unit. The spring in the reset unit is compressed, and the slide rod is also compressed to drive the piston to move. The shock-absorbing oil in one chamber of the cavity 2 enters the other chamber of the cavity 2 from the one-way valve 1, and the excess shock-absorbing oil enters the cavity 3 from the through hole 4 by opening the one-way valve 4. When the spring is forced to restore its length, the piston also moves. The oil in the other chamber of the cavity 2 and the cavity 3 respectively flows to the one chamber of the cavity 2 through the one-way valve 1 and the one-way valve 4. When facing a large earthquake, it can yield, and after yielding and compressive deformation, the device can be reset.

Description

Technical Field

[0001] The invention relates to the technical field of buckling restraint, in particular to a steel-wood self-resetting buckling restraint support device. Background Art

[0002] Buckling restrained braces are dual-function components installed in building structures. They bear loads in normal times and dissipate energy during earthquakes. They are usually used to improve the seismic performance and bearing capacity of components. Buckling restrained braces improve the stability and bearing capacity of components by limiting the deformation of components during stress. Traditional buckling restrained braces are usually made of heavy steel to provide sufficient restraint and stability.

[0003] In the buckling restraint support device, the external restraint component is squeezed and changes its position, so that the external restraint component cannot control the deformation of the energy-absorbing core material inside it, causing the energy-absorbing core material to deform excessively. The energy-absorbing core material after excessive deformation cannot recover its deformation again, that is, the energy-absorbing core after excessive deformation no longer has the function of earthquake energy absorption. In addition, the existing buckling restraint support is usually made of heavy steel, which results in a large dead weight and is not conducive to installation and transportation.

[0004] Therefore, those skilled in the art provide a steel-wood self-resetting buckling restraint support device to solve the problems raised in the above background technology. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a steel-wood self-resetting buckling restraint brace device, which solves the problem that the position of the external restraint component in the buckling restraint brace device is changed due to being squeezed, so that the external restraint component cannot control the deformation of the energy-absorbing core material inside it, causing the energy-absorbing core material to deform excessively, and the energy-absorbing core material after excessive deformation cannot recover its deformation again, that is, the energy-absorbing core material after excessive deformation no longer has the function of seismic energy absorption;

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The technical solution adopted by the present invention to solve its technical problems is: a steel-wood self-resetting flexural restraint support device, comprising a steel plate one, a stiffening rib unit is arranged on the inner surface of the steel plate one, the steel plate one and the stiffening rib unit are connected by gluing, a steel plate two is installed on the inner surface of the stiffening rib unit, the stiffening rib unit and the steel plate two are connected by gluing, a high-performance fiber composite grouting material is arranged on the inner surface of the steel plate two, a cross-shaped steel one is arranged inside the high-performance fiber composite grouting material, a yield unit is arranged on one end surface of the cross-shaped steel one, and a reset unit is arranged on the outer surface of the yield unit.

[0008] Preferably, the stiffening rib unit comprises a rib plate, and a plurality of the rib plates are arranged in a ring shape, and one side surface of the plurality of rib plates is installed on the inner surface of the first steel plate, and the other side surface of the plurality of rib plates is installed on the outer surface of the second steel plate.

[0009] Preferably, rib rings are installed on the outer surfaces of the plurality of rib plates, and a plurality of the rib rings are installed on the rib plates. The rib plates and the rib rings are both made of wood, and the rib plates and the rib rings are connected by mortise and tenon joints.

[0010] Preferably, the yield unit comprises an L-steel plate, four of which are provided and are mounted on a cross-shaped steel plate through anchor bolts.

[0011] Preferably, the outer surface of the anchor bolt is wrapped with a rubber ring, and a cross rubber is installed in the inner cavity formed by the four L-steel plates.

[0012] Preferably, the reset unit includes a cross-shaped steel 2, which is installed on the L-steel plate and connected to the cross-shaped steel 1 through anchor bolts, a shell 1 is welded and installed on one end of the cross-shaped steel 2, and the shell 2 is slidably installed in the cavity 1 opened in the shell 1, and the interior of the shell 2 is respectively provided with a cavity 2 and a cavity 3.

[0013] Preferably, a spring is welded and installed on the inner surface of cavity one, and the other end of the spring is welded and installed on one end of shell two, a sliding rod is welded and installed on the inner surface of cavity one, the sliding rod is slidably connected to shell two, and the other end of the sliding rod is arranged in cavity two opened inside shell two, a piston is welded and installed on the other end of the sliding rod, and the piston divides cavity two into two chambers.

[0014] Preferably, a through hole 1 and a through hole 2 are respectively formed through the outer surface of the piston 706, and a one-way valve 1 and a one-way valve 2 are respectively installed at the ends of the through hole 1 and the through hole 2.

[0015] Preferably, through hole three and through hole four respectively opened inside the shell two enable cavity two and cavity three to communicate with each other, and one-way valve three and one-way valve four are respectively installed at the ports of through hole three and through hole four.

[0016] Beneficial effects of the present invention:

[0017] 1. The steel-wood self-resetting buckling restraint support device described in the present invention is that the spring in the reset unit is compressed, and the sliding rod is also compressed to drive the piston to move, and the shock-absorbing oil in one chamber of the second chamber of the cavity enters the other chamber of the second chamber from the one-way valve one, and the excess shock-absorbing oil enters the third chamber from the through hole four through the one-way valve four. When the spring is forced to restore its length, the piston also moves, and the oil in the other chamber of the second chamber and the third chamber of the cavity flows to the first chamber of the cavity two through the one-way valve one and the one-way valve four respectively. Because the through hole one and the through hole four are smaller than the through hole two and the through hole three, all the energy of the spring is used to restore the length, and it cannot vibrate. When facing a large earthquake, after yielding and compressing and deforming, the device can be reset;

[0018] 2. The steel-wood self-resetting buckling restraint support device described in the present invention cooperates with the high-performance fiber composite grouting material through the stiffening ribs composed of rib plates installed on the rib rings by mortise and tenon joints in the stiffening rib unit, so that the overall self-weight is greatly reduced compared with the traditional steel buckling restraint support, which is conducive to installation and transportation, and also reduces the foundation bearing requirements. The design of the stiffening ribs further enhances the restraint performance and compensates for the loss of restraint effect caused by thinning, thereby improving the overall seismic effect. The cross-shaped steel one and cross-shaped steel twenty are arranged and the multi-layer restraint structure is adopted, so that the restraint force and stability of the buckling restraint support are significantly improved.

[0019] 3. The steel-wood self-resetting buckling restraint support device described in the present invention is a device in which the cross-shaped steel 1 and the cross-shaped steel 2 in the yield unit are detachably connected in sections through anchor bolts and L-steel plates, and the cross rubber installed between the cross-shaped steel 1 and the cross-shaped steel 2 is combined, so that the entire device can gradually yield and absorb energy, thereby reducing the vibration transmitted to other parts of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of a housing of the present invention;

[0024] Figure 4 It is a schematic diagram of the internal structure of a housing of the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the one-way valve 1 and the through hole 2 of the present invention;

[0026] Figure 6 It is a schematic diagram of the rib plate and rib ring structure of the present invention;

[0027] Figure 7 For the present invention Figure 3 Enlarged structural diagram at A in the middle.

[0028] In the figure: 1. Steel plate 1;

[0029] 2. Stiffening rib unit; 21. Rib plate; 22. Rib ring;

[0030] 3. Steel plate 2; 4. High-performance fiber composite grouting material; 5. Cross-shaped steel 1;

[0031] 6. Yield unit; 61. L steel plate; 62. Anchor bolt; 63. Rubber ring; 64. Cross rubber;

[0032] 7. Reset unit; 701. Shell 1; 702. Shell 2; 703. Cavity 1; 704. Sliding rod; 705. Spring; 706. Piston; 707. Through hole 1; 708. One-way valve 1; 709. Through hole 2; 710. One-way valve 2; 711. Through hole 3; 712. Through hole 4; 713. One-way valve 3; 714. One-way valve 4; 715. Cross-shaped steel 2; 716. Cavity 2; 717. Cavity 3. DETAILED DESCRIPTION

[0033] The embodiment of the present invention provides a steel-wood self-resetting buckling restraint brace device, which solves the problem that the position of the external restraint component in the buckling restraint brace device is changed due to being squeezed, so that the external restraint component cannot control the deformation of the energy dissipation core material inside it, causing the energy dissipation core material to deform excessively, and the energy dissipation core material after excessive deformation cannot recover its deformation again, that is, the energy dissipation core material after excessive deformation no longer has the function of seismic energy dissipation;

[0034] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0035] like Figure 1 - Figure 7 As shown, a steel-wood self-resetting buckling restraint support device of the present invention comprises a steel plate 1, a stiffening rib unit 2 is arranged on the inner surface of the steel plate 1, a steel plate 2 3 is installed on the inner surface of the stiffening rib unit 2, a high-performance fiber composite grouting material 4 is arranged on the inner surface of the steel plate 2 3, a cross-shaped steel 5 is arranged inside the high-performance fiber composite grouting material 4, a yield unit 6 is arranged on one end surface of the cross-shaped steel 5, and a reset unit 7 is arranged on the outer surface of the yield unit 6.

[0036] According to the above technical scheme, during installation, the cross-shaped steel 5, the yield unit 6 and the reset unit 7 are first installed to form a whole, and then the whole is placed inside the cylinder surrounded by the steel plates 3, and then the high-performance fiber composite grouting material 4 is injected into the cylinder surrounded by the steel plates 3, and then one end of the rib 21 in the stiffening rib unit 2 is fixedly installed on the outer surface of the steel plate 3, and then the rib ring 22 is connected by mortise and tenon joints on the outer surface of the rib 21 for secondary fixation, and finally the steel plate 1 is fixedly installed on the outer surface of the rib 21, wherein the thickness of the high-performance fiber composite grouting material 4 is 10 mm, the thickness of the stiffening rib unit 2 formed by the rib 21 and the rib ring 22 is 5 mm, and the diameter of the core load-bearing component of the cross-shaped steel 5 is 50 mm and the height is 100 mm.

[0037] In a further technical solution, the stiffening rib unit 2 includes a rib plate 21, a plurality of rib plates 21 are arranged in an annular shape, one side surface of the plurality of rib plates 21 is mounted on the inner surface of the steel plate 1, and the other side is mounted on the outer surface of the steel plate 2 3. The rib plate 21 is 50 mm long and is glued and installed at a certain interval along the longitudinal direction of the device.

[0038] A further technical solution is that a plurality of ribs 21 are provided with rib rings 22 on the outer surfaces thereof, and a plurality of rib rings 22 are provided on the ribs 21. The ribs 21 and the rib rings 22 are both made of wood, and the ribs 21 and the rib rings 22 are connected by mortise and tenon joints. The diameter of the rib rings 22 is 20 mm, and the thickness is 5 mm.

[0039] According to the above technical solution, the ribs 21 and rib rings 22 are made of wood. The stiffening rib unit 2 formed by the mortise and tenon joints of multiple ribs 21 in multiple rib rings 22 has a greatly reduced overall self-weight compared to the traditional steel buckling restrained support, which is conducive to installation and transportation, and also reduces the foundation bearing requirements.

[0040] In a further technical solution, the yield unit 6 includes an L steel plate 61, four L steel plates 61 are provided, and the four L steel plates 61 are installed on the cross-shaped steel 1 5 through anchor bolts 62. The L steel plate 61 and the anchor bolts 62 can fix the cross-shaped steel 1 5 and the cross-shaped steel 2 715, thereby enhancing the rigidity of the connection between the cross-shaped steel 1 5 and the shell 1 701.

[0041] In a further technical solution, the outer surface of the anchor bolt 62 is wrapped with a rubber ring 63, and a cross rubber 64 is installed in the inner cavity formed by the four L-shaped steel plates 61. The cross rubber 64 between the cross-shaped steel 1 5 and the cross-shaped steel 2 715 has a buffering and shock absorbing effect.

[0042] According to the above technical solution, the cross-shaped steel 1 5 and the cross-shaped steel 2 715 are detachably connected in sections through anchor bolts 62 and L-steel plates 61. Combined with the cross rubber 64 installed between the cross-shaped steel 1 5 and the cross-shaped steel 2 715, the entire device can gradually yield and absorb energy, thereby reducing the vibration transmitted to other parts of the structure.

[0043] A further technical solution is that the reset unit 7 includes a cross-shaped steel 2 715, which is installed on the L steel plate 61 and connected to the cross-shaped steel 1 5 through an anchor bolt 62, and a housing 1 701 is welded and installed at one end of the cross-shaped steel 2 715, and a housing 2 702 is slidably installed in a cavity 1 703 opened in the housing 1 701, and a cavity 2 716 and a cavity 3 717 are respectively opened inside the housing 2 702. The cavity 3 717 is an oil storage chamber, and the piston 706 makes the two chambers formed by the cavity 2 716 interpenetrate each other through the through hole 1 707 and the through hole 2 709 to form a flow chamber.

[0044] A further technical solution is that a spring 705 is welded and installed on the inner surface of cavity one 703, and the other end of the spring 705 is welded and installed on one end of shell two 702, a slide rod 704 is welded and installed on the inner surface of cavity one 703, the slide rod 704 is slidably connected to shell two 702, and the other end of the slide rod 704 is arranged in cavity two 716 opened inside shell two 702, and a piston 706 is welded and installed on the other end of the slide rod 704, and the piston 706 divides cavity two 716 into two chambers.

[0045] In a further technical solution, the outer surface of the piston 706 is respectively penetrated with a through hole 1 707 and a through hole 2 709, and a one-way valve 1 708 and a one-way valve 2 710 are respectively installed at the ends of the through hole 1 707 and the through hole 2 709. The one-way valve 1 708 opens when the piston 706 is compressed, and the one-way valve 2 710 opens when the piston 706 rebounds.

[0046] In a further technical solution, the through hole 3 711 and the through hole 4 712 respectively provided inside the shell 2 702 allow the cavity 2 716 to communicate with the cavity 3 717, and the through hole 3 711 and the through hole 4 712 are respectively provided with a check valve 3 713 and a check valve 4 714. The check valve 3 713 opens during compression, and the check valve 4 714 opens during rebound.

[0047] According to the above technical solution, when the 5 indirectly connected at both ends of the housing 1 701 and the housing 2 702 shakes, the spring 705 is compressed, the slide rod 704 is also compressed, the piston 706 performs a compression movement, the damping oil in one chamber of the cavity 2 716, the one-way valve 1 708 opens, and the damping oil enters the other chamber of the cavity 2 716 from the through hole 1 707, and the slide rod 704 occupies some space in the other chamber of the cavity 2 716, resulting in the inability to fully store the oil. The excess damping oil is discharged from the through hole 4 716 by opening the one-way valve 4 714. 2 enters cavity three 717. When spring 705 is forced to restore its length, piston 706 also moves in the same direction. The oil in the other chamber of cavity two 716 and cavity three 717 flows to one chamber of cavity two 716 by opening one-way valve one 708 and one-way valve four 714 respectively. Since through hole one 707 and through hole four 712 are smaller than through hole two 709 and through hole three 711, all the energy of spring 705 is used to restore its length and it cannot vibrate, which allows the device to return to its original position.

[0048] The embodiment of the present invention also provides a steel-wood self-resetting buckling restraint support device, and the specific working principle includes the following steps: when a small earthquake occurs, the reset unit 7 does not reach the critical point of yield, and the yield unit 6 reaches the critical point, and the cross-shaped steel 1 5 and the cross-shaped steel 2 715 are connected by the L steel plate 61 to form a multi-segment yield, and a cross rubber 64 is connected between the cross-shaped steel 1 5 and the cross-shaped steel 2 715, which can significantly improve the restraint force and stability of the buckling restraint support. Through the special shapes of the stiffening rib unit 2 and the cross-shaped steel 1 5 and the cross-shaped steel 2 715, the loss of the restraint effect caused by the thinning of the thickness is compensated, thereby improving the overall earthquake resistance effect;

[0049] When a large earthquake occurs, the reset unit 7 and the yield unit 6 both reach the critical point and cooperate with each other. The yield unit 6 first performs multi-stage yielding during a small earthquake, and then pulls or compresses the spring 705. The spring 705 can achieve a large-scale yielding effect. In the process of yielding, the slide bar 704 is also compressed, and the piston 706 performs a compression movement. The damping oil in one chamber of the cavity 2 716, the one-way valve 1 708 opens, and the damping oil enters the other chamber of the cavity 2 716 from the through hole 1 707. The slide bar 704 occupies some space in the other chamber of the cavity 2 716, resulting in the inability to fully store the oil. The damping oil flows out into cavity three 717 from cavity three 717 by opening the one-way valve four 714. When the spring 705 is forced to restore its length, the piston 706 also moves in the same direction. The oil in the other chamber of cavity two 716 and cavity three 717 flows to one chamber of cavity two 716 by opening the one-way valve one 708 and the one-way valve four 714 respectively. Since the through hole one 707 and the through hole four 712 are smaller than the through hole two 709 and the through hole three 711, the large-scale vibration of the spring 705 can be reduced. The above can not only make the device perform multi-stage yield but also reset after yielding.

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A steel-wood self-resetting buckling restraint support device, characterized in that: The invention comprises a steel plate 1 (1), wherein the inner surface of the steel plate 1 (1) is provided with a stiffening rib unit (2), the inner surface of the stiffening rib unit (2) is installed with a steel plate 2 (3), the inner surface of the steel plate 2 (3) is provided with a high-performance fiber composite grouting material (4), a cross-shaped steel 1 (5) is arranged inside the high-performance fiber composite grouting material (4), a yield unit (6) is arranged on one end surface of the cross-shaped steel 1 (5), and a reset unit (7) is arranged on the outer surface of the yield unit (6); the yield unit (6) comprises an L steel plate (61), wherein four L steel plates (61) are arranged, and the four L steel plates (61) are installed on the cross-shaped steel 1 through anchor bolts (62). (5); the reset unit (7) comprises a cross-shaped steel (715) which is mounted on the L steel plate (61) and connected to the cross-shaped steel (5) via an anchor bolt (62); a shell (701) is welded to one end of the cross-shaped steel (715); a shell (702) is slidably mounted in a cavity (703) opened in the shell (701); a cavity (716) and a cavity (717) are respectively opened inside the shell (702); a spring (705) is welded to the inner surface of the cavity (703), and the other end of the spring (705) is welded to one end of the shell (702).

2. A steel-wood self-resetting buckling restrained brace device according to claim 1, characterized in that: The stiffening rib unit (2) comprises a rib plate (21), a plurality of the rib plates (21) are arranged in an annular shape, one side surface of the plurality of rib plates (21) is mounted on the inner side surface of the first steel plate (1), and the other side surface is mounted on the outer side surface of the second steel plate (3).

3. A steel-wood self-resetting buckling restrained brace device according to claim 2, characterized in that: Rib rings (22) are installed on the outer surfaces of the plurality of rib plates (21), and a plurality of rib rings (22) are installed on the rib plates (21). The rib plates (21) and the rib rings (22) are both made of wooden materials, and the rib plates (21) and the rib rings (22) are connected by mortise and tenon joints.

4. A steel-wood self-resetting buckling restrained brace device according to claim 3, characterized in that: The outer surface of the anchor bolt (62) is wrapped with a rubber ring (63), and a cross rubber (64) is installed in the inner cavity formed by the four L-steel plates (61).

5. A steel-wood self-resetting buckling restrained brace device according to claim 4, characterized in that: A sliding rod (704) is welded and installed on the inner surface of the cavity one (703), and the sliding rod (704) is slidably connected to the shell two (702). The other end of the sliding rod (704) is arranged in the cavity two (716) opened inside the shell two (702), and a piston (706) is welded and installed on the other end of the sliding rod (704), and the piston (706) divides the cavity two (716) into two chambers.

6. A steel-wood self-resetting buckling restrained brace device according to claim 5, characterized in that: The outer surface of the piston (706) is respectively penetrated by a through hole 1 (707) and a through hole 2 (709), and a one-way valve 1 (708) and a one-way valve 2 (710) are respectively installed at the ends of the through hole 1 (707) and the through hole 2 (709).

7. A steel-wood self-resetting buckling restrained brace device according to claim 6, characterized in that: The through hole three (711) and the through hole four (712) respectively opened inside the shell two (702) enable the cavity two (716) to communicate with the cavity three, and the through hole three (711) and the through hole four (712) are respectively installed with a one-way valve three (713) and a one-way valve four (714) at the ends.

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