A two-stage energy dissipation and shock absorption structure

Abstract

The present invention discloses a two-stage energy dissipation and shock absorption structure, comprising a main structural component, a first shock-absorbing damper and a second shock-absorbing damper; the main structural component comprises a shear wall, a structural beam and a structural column, and the shear wall is two vertically parallel arranged; the structural beams are vertically fixedly connected to one of the shear walls; the structural column is fixedly connected to one end of the two structural beams away from the shear wall; the first shock-absorbing damper is fixedly installed in the space surrounded by the two structural beams and the structural column through a first connecting device; both ends of the second shock-absorbing damper are fixedly connected to the second connecting device, and the second connecting device is fixedly installed between the two shear walls. The two-stage energy dissipation and shock absorption structure provided by the present invention is provided with two types of dampers, so that the dampers play an energy dissipation role in the structure corresponding to different earthquake intensities, which can achieve more accurate control of the structural seismic force and the energy dissipation seismic energy protection structure under the action of earthquakes of different intensities.

Description

Technical Field

[0001] The invention relates to the technical field of shock-absorbing building design, and more particularly to a two-stage energy-absorbing shock-absorbing structure. Background Art

[0002] At present, the seismic intensity of structures in high-intensity areas is high. When conventional seismic design methods are used for structural design, the components are large in size, the material consumption is high, and the cost is difficult to control. Especially for concrete structures, it is generally difficult to design in high-intensity areas, and the structural height is even more difficult to break through. Therefore, it is necessary to introduce shock-absorbing technology to reduce the seismic response of the structure and make the structure more reasonable and reliable.

[0003] However, the shock absorption design methods at home and abroad generally adopt a single damper design for structural shock absorption design. When a single damper technology is used for shock absorption design, the shock absorption effect is generally only obvious at a certain stage. For example, when the damper used is used for shock absorption design under the action of small earthquakes, the effect of the damper will be significantly reduced when medium and large earthquakes occur. Even if multiple dampers are used, there is no clear design method for using different dampers to control earthquakes at different stages. It is mainly due to the passive use of different types of shock absorption technologies due to building restrictions.

[0004] Therefore, how to provide a two-stage energy dissipation and shock absorption structure is a problem that technical personnel in this field need to solve urgently. Summary of the invention

[0005] In view of this, the present invention provides a two-stage energy dissipation and shock absorption structure, in which two types of dampers are arranged so that the dampers can play an energy dissipation role in the structure corresponding to different earthquake intensities, thereby achieving more accurate control of the structural seismic force and the energy dissipation of seismic energy to protect the safety of the structure under earthquakes of different intensities.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A two-stage energy dissipation and shock absorption structure comprises a main structural component, a first shock-absorbing damper and a second shock-absorbing damper; the main structural component comprises a shear wall, a structural beam and a structural column, the shear wall is two vertically parallel arranged; the structural beam is two, and both are vertically fixedly connected to the side of one of the shear walls away from each other; the structural column is vertically arranged to the ground, and is fixedly connected to one end of the two structural beams away from the shear wall; the first shock-absorbing damper is a damper that can dissipate energy in small earthquakes, and is fixedly installed in the space surrounded by the two structural beams and the structural column through a first connecting device; the second shock-absorbing damper is a damper that dissipates energy in small earthquakes elastically and in medium earthquakes yieldingly, and both ends of the second shock-absorbing damper are fixedly connected to the second connecting device, and the second connecting device is located between the two shear walls.

[0008] The present invention discloses a two-stage energy dissipation and shock-absorbing structure, which simultaneously arranges a first shock-absorbing damper for dissipating energy in small earthquakes and a second shock-absorbing damper for dissipating energy in small earthquakes and elastic to medium earthquakes. The first shock-absorbing damper and the second shock-absorbing damper play an energy dissipation role in the structure corresponding to different earthquake intensities, thereby achieving more accurate control of structural seismic forces and dissipating seismic energy to protect the safety of the structure under earthquakes of different intensities. At the same time, dissipating energy in two stages can achieve better economy, avoiding the problem of high cost and low effectiveness caused by solving the seismic problem by simply increasing the cross-section of components and increasing the amount of reinforcement when designing structures in earthquake zones with higher intensity.

[0009] Preferably, the first connecting device is an outrigger structure, which is located between the two structural beams, with one end fixedly connected to the shear wall, and a first limit plate is fixed to the end away from the shear wall, and two relatively arranged first plates are fixed at positions corresponding to the structural column and the limit plate, and the first limit plate can be slidably arranged between the two first plates; a first steel plate is fixed to the bottom of the end of the outrigger structure away from the shear wall, and a second steel plate is fixed to the connection between the structural beam and the structural column at the bottom, one end of the first shock damper is fixedly connected to the first steel plate, and the other end is fixedly connected to the second steel plate.

[0010] The beneficial effect of adopting the above technical solution is that the first shock-absorbing damper is vertically fixed and installed, and can provide energy dissipation as an additional damping ratio of the structure under the action of small earthquakes. The first limit plate can be slidably arranged between the two first plate bodies. At the same time, the two first plate bodies limit the first limit plate, so that the cantilever structure moves between the two first plate bodies under the action of an earthquake. The first limit plate and the first plate body jointly limit the movement of the cantilever structure.

[0011] Preferably, the first shock-absorbing damper is fixedly connected to the first steel plate and the second steel plate via a first pin shaft.

[0012] The beneficial effect of adopting the above technical solution is that it is connected and fixed by the first pin shaft, and the structure is simple and stable.

[0013] Preferably, a plurality of pipeline openings are opened at the top of the cantilever structure in a horizontal direction, and a door opening is opened at the bottom near one end of the structural column.

[0014] The beneficial effect of adopting the above technical solution is that the pipeline opening is used for normal wiring, and the door opening is used for people to pass between houses after the houses are built.

[0015] Preferably, the first connecting device is a supporting structure with a bottomless trapezoidal longitudinal section, comprising two inclined portions and a horizontal portion arranged at the top of the inclined portions; a third steel plate and a fourth steel plate are respectively extended from the connection points between the structural beam located below and the shear wall and the structural column, the bottom ends of the two inclined portions are respectively fixedly connected to the third steel plate and the fourth steel plate, and the top ends are both fixedly connected to the horizontal portion; a plurality of second limit plates are fixed to the top end of the horizontal portion, and two oppositely arranged second plate bodies are fixed to the bottom end of the structural beam at the top, and the second limit plate can be slidably arranged between the two second plate bodies; a fifth steel plate is installed at one end of the horizontal portion close to the structural column, and a sixth steel plate is installed at the connection between the structural beam and the structural column at the top, one end of the first shock-absorbing damper is fixedly connected to the fifth steel plate, and the other end is fixedly connected to the sixth steel plate.

[0016] The beneficial effect of adopting the above technical solution is that the first shock-absorbing damper is installed horizontally and fixedly, and can provide energy dissipation as an additional damping ratio of the structure under the action of small earthquakes. The second limiting plate can be slidably arranged between the two second plate bodies. At the same time, the two second plate bodies limit the second limiting plate, so that the supporting structure moves between the two second plate bodies under the action of an earthquake. The second limiting plate and the second plate body jointly limit the movement of the supporting structure.

[0017] Preferably, the first shock-absorbing damper is fixedly connected to the fifth steel plate and the sixth steel plate via a second pin shaft.

[0018] The beneficial effect of adopting the above technical solution is that the first shock-absorbing damper is fixedly connected to the fifth steel plate through the pin shaft and the sixth steel plate through the second pin shaft, and the structure is simple and stable.

[0019] Preferably, the first shock absorbing damper is a viscous energy dissipator, a friction energy dissipator or a viscoelastic damper.

[0020] The beneficial effect of adopting the above technical solution is that the viscous energy dissipator, friction energy dissipator or viscoelastic damper can absorb and consume the impact energy of the earthquake on the building structure to the maximum extent, greatly alleviating the impact and damage caused by the earthquake to the building structure, and can be selected for use according to usage requirements.

[0021] Preferably, the second connecting device is a cantilever beam of a concrete structure, a steel structure or a reinforced concrete composite structure.

[0022] The beneficial effect of adopting the above technical solution is that the second shock-absorbing damper is fixed between the two shear walls through a cantilever beam of a concrete structure, a steel structure or a reinforced concrete composite structure, and the process is simple and the structure is stable.

[0023] Preferably, the second shock-absorbing damper and the corresponding second connecting device are two groups, and a shear wall connecting beam is further arranged above the corresponding second shock-absorbing damper, and both ends of the shear wall connecting beam are respectively fixedly connected to the shear wall.

[0024] The beneficial effect of adopting the above technical solution is that the second shock absorbing damper can be arranged at the position of the shear wall connecting beam to replace the shear wall connecting beam, and can also be arranged at the lower part of the shear wall connecting beam.

[0025] Preferably, the second shock absorbing damper is a metal energy dissipator.

[0026] The beneficial effect of adopting the above technical solution is that the second shock-absorbing damper can be designed to be energy-absorbing or elastic as needed. When designed to be energy-absorbing, its contribution to the damping ratio also needs to be considered. When designed to be non-energy-absorbing, only its stiffness contribution is considered.

[0027] Through the above technical scheme, it can be known that compared with the prior art, the present invention discloses a two-stage energy-absorbing shock-absorbing structure. Under the action of a small earthquake, the energy-absorbing effect of the first shock-absorbing damper can be used as an additional damping ratio of the structure, and the second shock-absorbing damper only considers its equivalent stiffness; under the action of a medium earthquake, the first shock-absorbing damper still plays an energy-absorbing role to provide an additional damping ratio, and the second shock-absorbing damper can be designed to be energy-absorbing or elastic as needed. When it is designed to be energy-absorbing, its contribution to the damping ratio also needs to be considered. When it is designed not to consume energy, only its stiffness contribution is considered; under the action of a large earthquake, both the first shock-absorbing damper and the second shock-absorbing damper enter an energy-absorbing state and provide a corresponding additional damping ratio. In this way, the entire shock-absorbing structure forms two stages. In the first stage, the first shock-absorbing damper mainly consumes energy to protect the structure, and in the second stage, the first shock-absorbing damper and the second shock-absorbing damper consume energy together to protect the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0029] Figure 1 This is a schematic diagram of the structure of Example 1 provided by the present invention.

[0030] Figure 2 This is a schematic diagram of the structure of Example 2 provided by the present invention.

[0031] Figure 3 This is a structural schematic diagram of the second shock-absorbing damper and the corresponding second connecting device replacing the original shear wall connecting beam in Example 3 or Example 4 provided by the present invention.

[0032] Figure 4 This is a structural schematic diagram of the second shock-absorbing damper and the corresponding second connecting device in Example 1 or Example 2 provided by the present invention being arranged at the lower part of the shear wall connecting beam.

[0033] Among them, the figures are as follows:

[0034] 1-first shock-absorbing damper, 2-second shock-absorbing damper, 3-shear wall, 4-structural beam, 5-structural column, 6-cantilever structure, 7-first limiting plate, 8-first plate body, 9-first steel plate, 10-second steel plate, 11-first pin shaft, 12-pipeline opening, 13-door opening, 14-support structure, 141-inclined part, 142-horizontal part, 15-third steel plate, 16-fourth steel plate, 17-second limiting plate, 18-second plate body, 19-fifth steel plate, 20-sixth steel plate, 21-second pin shaft, 22-shear wall connecting beam, 23-second connecting device, 24-floor slab. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Embodiment 1 of the present invention discloses a two-stage energy-absorbing and shock-absorbing structure, comprising a main structural component, a first shock-absorbing damper 1 and a second shock-absorbing damper 2; the main structural component comprises a shear wall 3, a structural beam 4 and a structural column 5, and two shear walls 3 are arranged vertically and in parallel; there are two structural beams 4, and each is vertically fixedly connected to one of the shear walls 3; the structural column 5 is vertically arranged to the ground, and is fixedly connected to one end of the two structural beams 4 away from the shear wall 3; the first shock-absorbing damper 1 is fixedly installed in the space enclosed by the two structural beams 4 and the structural column 5 through a first connecting device; both ends of the second shock-absorbing damper 2 are fixedly connected to the second connecting device 23, and the second connecting device 23 is located between the two shear walls 3.

[0037] In this embodiment, a first shock-absorbing damper 1 that can dissipate energy in small earthquakes and a second shock-absorbing damper 2 that dissipates energy in small earthquakes and elastic to medium earthquakes are provided simultaneously, so that the first shock-absorbing damper 1 and the second shock-absorbing damper 2 can dissipate energy in the structure in response to different earthquake intensities, thereby achieving more accurate control of structural seismic forces and dissipating seismic energy to protect the safety of the structure under earthquakes of different intensities; at the same time, dissipating energy in two stages can achieve better economy, avoiding the problem of high cost and low effectiveness caused by solving the seismic problem by simply increasing the cross-section of components and increasing the amount of reinforcement when designing structures in earthquake zones with higher intensity.

[0038] Among them, the first connecting device is an outrigger structure 6, which is located between the two structural beams 4, one end of which is fixedly connected to the shear wall 3, and a first limiting plate 7 is fixed to the end away from the shear wall 3, and two relatively arranged first plate bodies 8 are fixed at the positions corresponding to the structural column 5 and the first limiting plate 7, and the first limiting plate 7 can be slidably arranged between the two first plate bodies 8; a first steel plate 9 is fixed to the bottom of the end of the outrigger structure 6 away from the shear wall 3, and a second steel plate 10 is fixed at the connection between the bottom structural beam 4 and the structural column 5, one end of the first shock damper 1 is fixedly connected to the first steel plate 9, and the other end is fixedly connected to the second steel plate 10. The first shock-absorbing damper 1 is vertically fixed and installed, and can provide energy dissipation as an additional damping ratio of the structure under the action of small earthquakes. The first limiting plate 7 can be slidably arranged between the two first plate bodies 8. At the same time, the two first plate bodies 8 limit the first limiting plate 7, so that the cantilever structure 6 moves between the two first plate bodies 8 under the action of an earthquake. The first limiting plate 7 and the first plate body 8 jointly limit the movement of the cantilever structure 6.

[0039] The first shock absorbing damper 1 is fixedly connected to the first steel plate 9 and the second steel plate 10 via a first pin shaft 11 . The connection is fixed, and the structure is simple and stable.

[0040] A plurality of pipeline openings 12 are provided at the top of the cantilever structure 6 in the horizontal direction, and a door opening 13 is provided at the bottom near one end of the structural column 5. The pipeline opening 12 is used for normal wire threading, and the door opening 13 is used for facilitating people to walk between houses after the houses are built.

[0041] The first vibration damper 1 is a viscous energy dissipator, a friction energy dissipator or a viscoelastic damper. The first vibration damper is a relevant product in "Building Energy Dissipation Damper" JG / T 209-2012.

[0042] The second connection device 23 is a cantilever beam of a concrete structure, a steel structure or a reinforced concrete composite structure.

[0043] There are two sets of second shock-absorbing dampers 2 and their corresponding second connecting devices 23 , and a shear wall connecting beam 22 is also provided on the top of each set. The two ends of the shear wall connecting beam 22 are respectively fixedly connected to the shear wall 3 , and the top of the shear wall connecting beam 22 is fixed to the floor slab 24 .

[0044] The second shock absorbing damper 2 is a metal energy dissipator. The second shock absorbing damper 2 can be designed to dissipate energy or be elastic as needed. When it is designed to dissipate energy, its contribution to the damping ratio also needs to be considered. When it is designed not to dissipate energy, only its stiffness contribution needs to be considered. Among them, the second shock absorbing damper 2 is a related product in "Building Energy Dissipation Damper" JG / T 209-2012.

[0045] A two-stage energy dissipation and shock absorption structure provided in Example 2 of the present invention is different from Example 1 in that the first connecting device is a supporting structure 14 with a bottomless trapezoidal longitudinal section, including two inclined portions 141 and a horizontal portion 142 arranged at the top of the inclined portion 141; a third steel plate 15 and a fourth steel plate 16 are respectively extended from the connection between the structural beam 4 located below and the shear wall 3 and the structural column 5, the bottom ends of the two inclined portions 141 are respectively fixedly connected to the third steel plate 15 and the fourth steel plate 16, and the top ends are both fixedly connected to the horizontal portion 142; a plurality of second limiting plates 17 are fixed to the top end of the horizontal portion 142, and two second plate bodies 18 arranged opposite to each other are fixed to the bottom end of the top structural beam 4, and the second limiting plate 17 can be slidably arranged between the two second plate bodies 18;

[0046] A fifth steel plate 19 is installed at one end of the horizontal portion 142 close to the structural column 5, a sixth steel plate 20 is installed at the connection between the top structural beam 4 and the structural column 5, one end of the first shock-absorbing damper 1 is fixedly connected to the fifth steel plate 19, and the other end is fixedly connected to the sixth steel plate 20.

[0047] The first shock-absorbing damper 1 is installed horizontally and fixedly, and can provide energy dissipation as an additional damping ratio of the structure under the action of small earthquakes. The second limiting plate 17 can be slidably arranged between the two second plate bodies 18. At the same time, the two second plate bodies 18 limit the second limiting plate 17, so that the supporting structure 14 moves between the two second plate bodies 18 under the action of an earthquake. The second limiting plate 17 and the second plate body 18 jointly limit the movement of the supporting structure 14.

[0048] The first shock absorbing damper 1 is fixedly connected to the fifth steel plate 19 and the sixth steel plate 20 via a second pin shaft 21 .

[0049] A two-stage energy dissipation and shock absorption structure provided in Example 3 of the present invention is different from Example 1 in that the second shock absorbing damper 2 and its corresponding second connecting device are two groups, replacing the shear wall connecting beam 22.

[0050] A two-stage energy dissipation and shock absorption structure provided in Example 4 of the present invention is different from Example 2 in that the second shock absorbing damper 2 and its corresponding second connecting device are two groups, replacing the shear wall connecting beam 22.

[0051] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0052] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A two-stage energy dissipation and shock absorption structure, characterized in that: The invention comprises a main structure component, a first shock absorbing damper (1) and a second shock absorbing damper (2); the main structure component comprises a shear wall (3), a structural beam (4) and a structural column (5); the shear wall (3) is two and arranged vertically and in parallel; the structural beam (4) is two, and one end of each of the two structural beams (4) is vertically fixedly connected to a side of one of the shear walls (3) that is away from each other; the structural column (5) is vertically arranged with respect to the ground and is fixedly connected to the other ends of the two structural beams (4); the first shock absorbing damper (1) is fixedly installed in a space enclosed by the two structural beams (4) and the structural column (5) through a first connecting device; the first connecting device is an arm structure (6), the arm structure (6) is located between the two structural beams (4), one end of the arm structure (6) is fixedly connected to the shear wall (3), and the end of the arm structure that is away from the shear wall (3) is fixedly provided with a first limit plate ( 7), two first plates (8) arranged opposite to each other are fixed at positions corresponding to the structural column (5) and the first limiting plate (7), and the first limiting plate (7) can be slidably arranged between the two first plates (8); a first steel plate (9) is fixed at the bottom of one end of the cantilever structure (6) away from the shear wall (3), and a second steel plate (10) is fixed at the connection between the structural beam (4) and the structural column (5) located below; one end of the first shock-absorbing damper (1) is fixedly connected to the first steel plate (9), and the other end is fixedly connected to the second steel plate (10); both ends of the second shock-absorbing damper (2) are fixedly connected to a second connecting device (23), and the second connecting device (23) is located between the two shear walls (3), and the second connecting device (23) is a cantilever beam of a concrete structure, a steel structure or a reinforced concrete composite structure.

2. A two-stage energy dissipation and shock absorption structure according to claim 1, characterized in that: The first shock absorbing damper (1) is fixedly connected to the first steel plate (9) and the second steel plate (10) via a first pin shaft (11).

3. A two-stage energy dissipation and shock absorption structure according to claim 1, characterized in that: A plurality of pipeline openings (12) are provided at the top of the cantilever structure (6) in the horizontal direction, and a door opening (13) is provided at the bottom near one end of the structural column (5).

4. A two-stage energy dissipation and shock absorption structure according to claim 1, characterized in that: The first connection device is a support structure (14) with a bottomless trapezoidal longitudinal section, comprising two inclined portions (141) and a horizontal portion (142) arranged at the top of the inclined portions (141); a third steel plate (15) and a fourth steel plate (16) are respectively extended from the connection between the structural beam (4) located below and the shear wall (3) and the structural column (5); the bottom ends of the two inclined portions (141) are respectively fixedly connected to the third steel plate (15) and the fourth steel plate (16), and the top ends are both fixedly connected to the horizontal portion (142); a plurality of second limiting plates (17) are fixedly provided at the top end of the horizontal portion (142); two second plate bodies (18) arranged opposite to each other are fixedly provided at the bottom end of the structural beam (4) located above, and the second limiting plate (17) can be slidably provided between the two second plate bodies (18); A fifth steel plate (19) is installed at one end of the horizontal portion (142) close to the structural column (5), a sixth steel plate (20) is installed at the connection between the top structural beam (4) and the structural column (5), one end of the first shock-absorbing damper (1) is fixedly connected to the fifth steel plate (19), and the other end is fixedly connected to the sixth steel plate (20).

5. A two-stage energy dissipation and shock absorption structure according to claim 4, characterized in that: The first shock absorbing damper (1) is fixedly connected to the fifth steel plate (19) and the sixth steel plate (20) via a second pin shaft (21).

6. A two-stage energy dissipation and shock absorption structure according to claim 1 or 5, characterized in that: The first vibration damper (1) is a viscous energy dissipator, a friction energy dissipator or a viscoelastic damper.

7. The two-stage energy dissipation and shock absorption structure according to claim 1 is characterized in that: The second shock absorbing damper (2) and its corresponding second connecting device (23) are provided in two groups, and a shear wall connecting beam (22) is provided above each of the second shock absorbing dampers (2), and the two ends of the shear wall connecting beam (22) are respectively fixedly connected to the shear wall (3).

8. A two-stage energy dissipation and shock absorption structure according to claim 7, characterized in that: The second vibration damper (2) is a metal energy dissipator.

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