Swing self-resetting anti-vibration and anti-vibration structure easy to integrally regulate and control

Abstract

The invention discloses a swing self-resetting anti-vibration / vibration structure easy to integrally regulate and control. The swing self-resetting anti-vibration / vibration structure is composed of an upper structure, a support mounting layer and a foundation. Different from a traditional horizontal shearing shock isolation principle, the upper structure generates rigid body rotation around the rotating hinged support, the upper structure integrally swings within the allowable range of design, and energy is absorbed and dispersed through deformation of the vertical tension and compression support and the energy dissipation device; the structural system is particularly suitable for a structure with large rigidity, the structural system can adapt to the deformation requirement of the structure under the extreme load, and meanwhile, the dependence on the ductility design of a common building structure is reduced; the structural system can effectively combine anti-seismic and damping technologies, provides a new damping design thought for reducing damage and destruction under the action of strong shock, and has innovativeness and practicability. Due to the recoverable function and energy consumption, the residual displacement after an earthquake can be effectively controlled, and great economic significance and social value are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of a recoverable functional earthquake-proof structural system, and in particular to a swing self-resetting earthquake-proof and vibration-proof structure which is easy to be regulated as a whole. Background Art

[0002] The recoverable earthquake-resistant structural system has been a research hotspot in the field of earthquake engineering in recent years. The design goal of this structural system is to enable the building to maintain an acceptable level of functionality when an earthquake occurs, and to restore its use function after the earthquake without the need for complex repairs or with only minor repairs. This design concept is based on improving the seismic resilience of urban buildings and infrastructure and reducing the economic losses and social impacts caused by earthquake disasters.

[0003] The current design concepts of building structures to cope with earthquakes mainly include: seismic toughness design, performance-based seismic design, seismic isolation and energy dissipation technology, seismic design of non-structural components, structural optimization design, etc. The development and application of these design concepts aim to improve the safety and functionality of building structures under earthquakes and reduce the losses caused by earthquake disasters. The rocking self-righting structure can effectively control the residual displacement after an earthquake and ensure the functionality and safety of the structure. Due to its easy repair and rapid construction, the rocking self-righting structure has great economic significance and social value. Due to the rocking effect, the ductility design requirements of the structure itself are reduced, which can save the cost of the structure. The rocking self-righting structure can be applied to different structural systems, such as rocking bridge piers, reinforced concrete frame structures, steel frame structures, shear wall structures, etc. Although the rocking self-righting structure has the advantages of significant seismic resistance and rapid recovery after an earthquake, it also faces some challenges and problems in practical applications. The design of the rocking self-righting structure needs to consider many factors, including the stability, strength, and behavior of the structure under different earthquake intensities, which increases the complexity of the design; secondly, in order to ensure that the structure can self-right after rocking, special materials and technologies are usually required, such as post-tensioned prestressed tendons, which may increase the difficulty and cost of construction.

[0004] In summary, it is an urgent problem to be solved by technical personnel in this field to improve the seismic toughness and recovery capacity of building structures through scientific research and technological innovation, and to provide a structure with simple design, which can sway stably during earthquakes and has small residual deformation after earthquakes. Summary of the invention

[0005] The present invention provides a swing self-resetting anti-vibration and anti-shock structure which is easy to regulate as a whole, reduces the damage of the structure under a strong earthquake, and has a small residual deformation of the structure after the earthquake, which is conducive to the rapid recovery of the use function of the structure.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: The present invention discloses a swing self-resetting anti-vibration and anti-shock structure which is easy to regulate as a whole, comprising an upper structure, a support installation layer and a foundation, wherein the support installation layer is provided with an inner vertical member at the position of the plane centroid of the upper structure, and side vertical members are arranged at intervals along the contour direction of the outer periphery of the upper structure; the upper end of the inner vertical member is connected to the upper structure, and the lower end is connected to the foundation through a rotating hinge support; the side vertical member is provided with a vertical tension and compression support; The rotating hinge support allows the upper structure to produce a rotational displacement while limiting the linear displacement of the upper structure in the horizontal direction; The vertical tension and compression supports do not constrain the horizontal lateral displacement of the upper structure, only provide compressive bearing capacity, and do not bear shear bearing capacity in the horizontal direction.

[0007] The present invention provides a swinging self-resetting anti-seismic and anti-vibration structure which is easy to regulate as a whole. Furthermore, the upper structure can be designed as a traditional building structure including columns, beams, and wall components, or a specific structure composed of vertical compression and bending components, and the specific structure is a water tower, a signal tower, a power line tower, or an industrial and military building.

[0008] The present invention provides a rocking self-resetting anti-seismic and anti-vibration structure which is easy to regulate as a whole. Furthermore, the horizontal lateral displacement caused by the rigid body rotation displacement of the upper structure under the action of an earthquake is 30%-80% of the overall horizontal lateral displacement of the upper structure.

[0009] The present invention provides a swinging self-resetting anti-shock and vibration structure which is easy to regulate as a whole. Furthermore, the vertical tension and compression support is a spiral tension and compression support, a disc spring support, a thick rubber support or an air spring support. When performing the plane design of the support installation layer, multiple vertical tension and compression supports of the same type or multiple vertical tension and compression supports can be selected for combination.

[0010] The present invention provides a swinging self-resetting anti-shock and anti-vibration structure which is easy to regulate as a whole. Furthermore, the vertical tension and compression support is equipped with a limiting device, and the limiting device includes a compression limiter and a tension limiter. The vertical tension and compression support installation position is provided with a "convex" shaped installation groove, and the vertical tension and compression support is installed in the installation groove. The compression limiter is installed at the top of the vertical tension and compression support and is located above the installation groove. When the vertical tension and compression support reaches the compression limit, the compression limiter contacts the top of the installation groove; the tension limiter is installed at the lower part of the vertical tension and compression support and is located in the expanded space at the lower part of the installation groove. When the vertical tension and compression support reaches the compression limit, the tension limiter contacts the top wall of the installation groove.

[0011] The present invention provides a rocking self-resetting anti-shock and anti-vibration structure which is easy to regulate as a whole. Furthermore, the vertical tension and compression support is installed in the middle of the support installation layer, and the upper and lower parts of the vertical tension and compression support are respectively connected with side vertical components, the upper side vertical component is connected to the upper structure, and the lower side vertical component is connected to the foundation.

[0012] The present invention provides a rocking self-resetting anti-shock and anti-vibration structure which is easy to regulate as a whole. Furthermore, when the vertical tension and compression support is arranged on the top of the support installation layer, the upper part of the vertical tension and compression support is connected to the vertical member of the bottom layer of the upper structure, and the lower part is connected to the foundation through the side vertical member.

[0013] The present invention provides a rocking self-resetting anti-shock and anti-vibration structure which is easy to regulate as a whole. Furthermore, the vertical tension and compression support is arranged at the bottom of the support installation layer, the vertical tension and compression support and the rotating hinge support are located at the same height, the upper part of the vertical tension and compression support is connected to the upper structure through the side vertical member, and the lower part is connected to the foundation.

[0014] The present invention provides a rocking self-resetting anti-shock and anti-vibration structure which is easy to regulate as a whole. Furthermore, a lateral constraint is arranged at the connection position between the vertical tension and compression support and the foundation.

[0015] The present invention provides a swinging self-resetting anti-vibration and anti-oscillation structure which is easy to regulate as a whole. Furthermore, an energy dissipation and shock absorbing device is vertically installed at the support installation layer, and the energy dissipation and shock absorbing device deforms synchronously with the vertical tension and compression support.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present application provides a rocking self-resetting anti-seismic and vibration-proof structure which is easy to regulate as a whole. Different from the traditional horizontal shear isolation principle, the upper structure generates a rigid body rotation around the rotating hinge support, allowing the upper structure to rock as a whole within the range allowed by the design, and absorbs and disperses energy through the deformation of the vertical tension and compression supports and the energy dissipation device; this structural system is particularly suitable for structures with greater rigidity, because it can adapt to the deformation requirements of the structure under extreme loads, while reducing the dependence on the ductility design of general building structures; this structural system can effectively combine earthquake resistance and shock absorption technologies, and provide new shock absorption design ideas for reducing damage and destruction under strong earthquakes, which is innovative and practical; due to the strong structural stability and strong self-resetting ability, it can effectively control the residual displacement after an earthquake, and has great economic significance and social value.

[0017] The present invention will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of three installation positions of a swing self-resetting anti-vibration and vibration structure vertical tension and compression support that is easy to control as a whole according to the present invention; Figure 2 A schematic diagram of a main view of a swing self-resetting anti-vibration and anti-oscillation structure provided by the present invention that is easy to regulate as a whole; Figure 3 for Figure 2 A top view schematic diagram of a swing self-resetting anti-vibration and anti-oscillation structure that is easy to regulate as a whole; Figure 4 for Figure 2 Schematic diagram of the deformation of a rocking self-resetting earthquake-proof and vibration-proof structure that is easy to control as a whole, simulated under the action of horizontal seismic force in finite element software.

[0019] Figure 5 for Figure 2 A kind of swaying self-resetting anti-seismic and vibration structure that is easy to control as a whole is under the action of different levels of earthquake forces (large earthquake, medium earthquake, small earthquake). The proportion of its overall structural displacement angle and rigid body rotation displacement angle can intuitively understand the movement characteristics of the structure under earthquake action; Figure 6 This is a schematic diagram of the installation of a swing self-resetting anti-vibration and vibration structure limiting device that is easy to control as a whole and provided by the present invention.

[0020] Reference numerals: 1. Superstructure; 2. Support installation layer; 3. Foundation; 4. Rotating hinge support; 5. Vertical tension and compression support; 6. Compression limiter; 7. Tension limiter; 8. Installation groove; 21. Internal vertical member; 22. Side vertical member; 23. Diagonal brace. DETAILED DESCRIPTION

[0021] like Figure 1-Figure 6 As shown, the present invention discloses a swing self-resetting anti-seismic and anti-vibration structure that is easy to regulate as a whole, including an upper structure 1, a support installation layer 2 and a foundation 3. The upper structure 1 can be designed as a traditional building structure including components such as columns, beams, and walls, or a specific structure composed of vertical compression and bending components, such as used in water towers, signal towers, power towers, and industrial and military buildings. Through reasonable design, the horizontal lateral displacement caused by the rigid body rotation displacement of the upper structure 1 under the action of an earthquake should not be less than 30% of the overall horizontal lateral displacement of the upper structure 1, and generally 30%-80% is preferred. The rigidity of the upper structure 1 can be improved by setting supports, increasing the cross-sectional size, and the like.

[0022] The support installation layer 2 is provided with an inner vertical member 21, a side vertical member 22 and a diagonal brace 23. The inner vertical member 21 is arranged near the plane centroid of the upper structure 1, and its upper end is connected to the upper structure 1, and its lower end is connected to the foundation 3 through the rotating hinge support 4; the side vertical members 22 are arranged at intervals on the periphery of the upper structure 1 along the contour direction of the upper structure 1. The diagonal brace 23 is located at the support installation layer 2, and is connected to the rotating hinge support 4 by the top of each side vertical member 22.

[0023] The rotating hinge support 4 allows rotational displacement and limits the horizontal linear displacement of the upper structure 1 connected thereto, so that the upper structure 1 generates a rigid body rotation around the rotating hinge support 4 under the action of earthquake force, ensuring that the structure can be stably restored after swaying.

[0024] The vertical tension and compression supports 5 do not constrain the horizontal lateral displacement of the upper structure 1, and only provide compressive bearing capacity, and do not bear any shear bearing capacity in the horizontal direction.

[0025] The vertical tension and compression bearing 5 can be a spiral tension and compression bearing, a disc spring bearing, a thick rubber bearing, an air spring bearing, etc. When performing the plane design of the bearing installation layer 2, multiple vertical tension and compression bearings 5 ​​of the same type or different types of vertical tension and compression bearings 5 ​​can be selected and combined.

[0026] The vertical tension and compression support 5 is equipped with a limiting device, which includes a compression limiter 6 and a tension limiter 7. A "convex" installation groove 8 is provided at the installation position of the vertical tension and compression support 5. The vertical tension and compression support 5 is installed in the installation groove 8. The compression limiter 6 is installed at the top of the vertical tension and compression support 5 and is located above the installation groove 8. When the vertical tension and compression support 5 reaches the compression limit, the compression limiter 6 contacts the top of the installation groove 5; the tension limiter 7 is installed at the lower part of the vertical tension and compression support 5 and is located in the expanded space at the lower part of the installation groove 8. When the vertical tension and compression support 5 reaches the compression limit, the tension limiter 7 contacts the top wall of the installation groove 8. When the tensile deformation or compressive deformation of the vertical tension and compression support 5 reaches the design limit, the tensile stiffness or compressive stiffness of the vertical tension and compression support 5 will increase significantly to prevent the upper structure from overturning.

[0027] Embodiment 1: The vertical tension and compression support 5 is installed in the middle of the support installation layer 2. The upper and lower ends of the vertical tension and compression support 5 are respectively connected with side vertical members 22. The upper side vertical member 22 is connected to the upper structure 1, and the lower side vertical member 22 is connected to the foundation 3.

[0028] Embodiment 2: The difference from the first embodiment is that the vertical tension and compression support 5 is arranged on the top of the support installation layer 2, the upper part of the vertical tension and compression support 5 is directly connected to the vertical member of the bottom layer of the upper structure 1, and the lower part is connected to the foundation 3 through the side vertical member 22.

[0029] Embodiment three: The difference from embodiments one and two is that the vertical tension and compression support 5 is arranged at the bottom of the support installation layer 2, the vertical tension and compression support 5 and the rotating hinge support 4 are at the same height, the upper part of the vertical tension and compression support 5 is connected to the upper structure 1 through the side vertical member 22, and the lower part is directly connected to the foundation 3.

[0030] In addition, the connection between the vertical tension and compression support 5 and the foundation 3 can be designed to increase lateral constraints. The lateral constraints can be the inner wall of the installation groove, so that it can withstand the horizontal shear force while bearing the vertical tension and pressure.

[0031] Embodiment 4: An energy dissipation and shock absorption device 6 can also be arranged at the support mounting layer 2. The energy dissipation and shock absorption device 6 is vertically installed on the support mounting layer 2. The types of the energy dissipation and shock absorption device 6 include viscous dampers, viscoelastic dampers, etc. The energy is absorbed and dispersed through the deformation of the energy dissipation and shock absorption device 6 and the vertical tension and compression support 5.

[0032] Embodiment five: The finite element calculation results of the rocking self-righting anti-seismic / vibration structure are provided to predict its effect under earthquake action. In this example, the superstructure 1 is a 9-story, two-span, three-bay steel frame structure with a design intensity of 8 degrees and 0.2g, site category III, group II, site characteristic period 0.55s, floor dead load 5kN / m2, and live load 2kN / m2.

[0033] The embodiments described above are merely descriptions of preferred implementation modes of the present invention and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A swing self-resetting anti-vibration / shock structure that is easy to regulate as a whole, characterized by: The invention comprises an upper structure (1), a support installation layer (2) and a foundation (3); the support installation layer (2) is provided with an inner vertical member (21) at the position of the plane centroid of the upper structure (1), and side vertical members (22) are arranged at intervals on the periphery of the upper structure (1) along the contour direction thereof; the upper end of the inner vertical member (21) is connected to the upper structure (1), and the lower end is connected to the foundation (3) via a rotating hinge support (4); a vertical tension and compression support (5) is installed at the side vertical member (22); The rotating hinge support (4) allows the upper structure (1) to generate a rotational displacement, while limiting the linear displacement of the upper structure (1) in the horizontal direction; The vertical tension and compression supports (5) do not constrain the horizontal lateral displacement of the upper structure (1), and only provide compressive bearing capacity, but do not bear shear bearing capacity in the horizontal direction.

2. According to claim 1, a swing self-resetting anti-shock / vibration structure that is easy to control as a whole is characterized by: The superstructure (1) can be designed as a traditional building structure including columns, beams, and wall components, or a specific structure composed of vertical compression and bending components, and the specific structure is a water tower, a signal tower, a power line tower, or an industrial or military building.

3. The swing self-resetting anti-vibration / anti-shock structure that is easy to control as a whole according to claim 1 is characterized in that: The horizontal lateral displacement caused by the rigid body rotation displacement of the upper structure (1) under the action of an earthquake is 30%-80% of the overall horizontal lateral displacement of the upper structure (1).

4. The swing self-resetting anti-vibration / anti-shock structure that is easy to control as a whole according to claim 1 is characterized by: The vertical tension and compression bearing (5) is a spiral tension and compression bearing, a disc spring bearing, a thick rubber bearing or an air spring bearing. When the plane design of the bearing installation layer (2) is performed, a plurality of the same vertical tension and compression bearings (5) or a plurality of vertical tension and compression bearings (5) can be selected and combined.

5. The swing self-resetting anti-vibration / anti-shock structure that is easy to control as a whole according to claim 1, characterized in that: The vertical tension and compression support (5) is equipped with a limiting device, and the limiting device includes a compression limiter (6) and a tension limiter (7). The installation position of the vertical tension and compression support (5) is provided with a "convex"-shaped installation groove (8). The vertical tension and compression support (5) is installed in the installation groove (8). The compression limiter (6) is installed at the top of the vertical tension and compression support (5) and is located above the installation groove (8). When the vertical tension and compression support (5) reaches the compression limit, the compression limiter (6) contacts the top of the installation groove (8); the tension limiter (7) is installed at the bottom of the vertical tension and compression support (5) and is located in the expanded space at the bottom of the installation groove (8). When the vertical tension and compression support (5) reaches the compression limit, the tension limiter (7) contacts the top wall of the installation groove (8).

6. The swing self-resetting anti-vibration / anti-shock structure that is easy to control as a whole according to claim 1, characterized in that: The vertical tension and compression support (5) is installed in the middle of the support installation layer (2), and the upper and lower parts of the vertical tension and compression support (5) are respectively connected to side vertical components (22), the upper side vertical component (22) is connected to the upper structure (1), and the lower side vertical component (22) is connected to the foundation (3).

7. The swing self-resetting anti-vibration / anti-shock structure that is easy to control as a whole according to claim 1, characterized in that: When the vertical tension and compression support (5) is arranged on the top of the support installation layer (2), the upper part of the vertical tension and compression support (5) is connected to the vertical member of the bottom layer of the upper structure (1), and the lower part is connected to the foundation (3) through the side vertical member (22).

8. The swing self-resetting anti-vibration / anti-shock structure that is easy to control as a whole according to claim 1 is characterized by: The vertical tension and compression support (5) is arranged at the bottom of the support installation layer (2), the vertical tension and compression support (5) and the rotating hinge support (4) are located at the same height, the upper part of the vertical tension and compression support (5) is connected to the upper structure (1) through the side vertical member (22), and the lower part is connected to the foundation (3).

9. The swing self-resetting anti-vibration / anti-shock structure that is easy to control as a whole according to claim 8, characterized in that: A lateral constraint is provided at the connection position between the vertical tension and compression support (5) and the foundation (3).

10. The swing self-resetting anti-shock / vibration structure that is easy to control as a whole according to claim 1, characterized in that: An energy dissipation and shock absorption device is vertically installed at the support installation layer (2), and the energy dissipation and shock absorption device deforms synchronously with the vertical tension and compression support.

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