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JP-7855283-B1 - A connecting structure equipped with three-dimensional seismic damping and energy absorption buffer functions.

JP7855283B1JP 7855283 B1JP7855283 B1JP 7855283B1JP-7855283-B1

Abstract

[Solution] A connection structure equipped with three-dimensional seismic damping and energy absorption buffering functions, wherein, in the event of an earthquake, the rotational connection device 21 restricts the superstructure 1 so that it can only rotate as a rigid body around the rotational connection device 21, causing the superstructure 1 to rock overall within the design tolerance range. Subsequently, the deformation and energy dissipation action of the vertical connection device 22 absorb and dissipate energy, reducing the impact of the earthquake on the superstructure 1. [Effects] The combination of the above devices achieves the objectives of earthquake resistance and vibration control, effectively reducing damage and destruction to the superstructure caused by strong earthquakes. Furthermore, because the connecting structure has a strong self-centering ability, it effectively suppresses residual displacement of the structure itself after an earthquake, preventing further destruction of the superstructure and contributing to structural repair. When the earthquake resistance capacity of the superstructure is strengthened by the connecting structure, the requirements in earthquake performance design are also reduced, further increasing its economic value. [Selection Diagram] Figure 2

Inventors

  • 陳　雲
  • 秦 佳
  • 高 辰旭
  • 高 帥

Assignees

  • 海南大学

Dates

Publication Date
20260508
Application Date
20251030
Priority Date
20241121

Claims (8)

  1. A connecting structure having three-dimensional seismic damping and energy absorption buffering functions, comprising a superstructure (1), a connecting layer, and a lower foundation (3), wherein the connecting layer is located between the superstructure (1) and the lower foundation (3), and the connecting structure (2) is located within the connecting layer, and the connecting structure (2) comprises a rotating connecting device (21) and a vertical connecting device (22), wherein the rotating connecting device (21) is located at the center of the superstructure (1), its top is connected to the superstructure (1), and its bottom is provided on the lower foundation (3), and the vertical connecting device (22) is located on the outer circumference of the rotating connecting device (21), with its upper and lower parts connected to the superstructure (1) and the lower foundation (3), respectively. The rotary connecting device (21) rotates the superstructure (1) and limits the linear displacement of the superstructure (1) in the horizontal direction, causing the superstructure (1) to rotate rigidly around the rotary connecting device (21). The vertical connection device (22) does not restrain the horizontal shift of the superstructure (1), supports only the load in the vertical direction, and does not bear the shear force in the horizontal direction. The vertical connection device (22) includes a vertical tensile-compressive elastic base (221) and a pier (222), wherein when the vertical tensile-compressive elastic base (221) is provided on the upper part of the connecting layer, the top of the vertical connection device (22) is directly connected to the superstructure (1) and the bottom is connected to the lower foundation (3) via the pier (222); when the vertical tensile-compressive elastic base (221) is provided in the central part of the connecting layer, the top of the vertical connection device (22) is connected to the superstructure (1) via the pier (222) and the bottom is connected to the lower foundation (3) via the pier (222); and when the vertical tensile-compressive elastic base (221) is provided on the lower part of the connecting layer, the top of the vertical connection device (22) is connected to the superstructure (1) via the pier (222) and the bottom is directly connected to the lower foundation (3).
  2. The rotating connection device (21) includes a rotating box (211) and a rotating base (212), wherein the rotating box (211) is provided on the lower foundation (3), and the rotating base (212) is provided at the center of the bottom surface of the upper structure (1) and located within the rotating box (211), and the rotating base (212) rotates within the rotating box (211) about a spherical center, characterized in that it is a connection structure with three-dimensional seismic damping and energy absorption buffering functions as described in claim 1.
  3. The connection structure according to claim 1, characterized in that the vertical connection device (22) is provided in an annular arrangement at equal intervals within the connection layer, and the rotary connection device (21) is located at the center of the circle.
  4. The superstructure (1) is a cylindrical structure including a cylindrical wall and a cylindrical bottom, and the tops of the rotating connecting device (21) and the vertical connecting device (22) are connected to the cylindrical bottom, characterized in that the connection structure has a three-dimensional seismic damping function and an energy absorption buffer function as described in claim 1.
  5. The lower foundation (3) includes a support base (31) and a support pile (32), and the support base (31) is provided in the ground by the support pile (32), characterized in that it is a connecting structure with three-dimensional seismic damping and energy absorption buffering functions as described in claim 1.
  6. The connection structure according to claim 1, characterized in that the vertical tensile and compressive elastic base (221) is provided with a limiting device, thereby providing a three-dimensional seismic damping function and an energy absorption buffer function.
  7. The connection structure according to claim 1, further comprising an energy dissipation damping device (4), wherein the energy dissipation damping device (4) is located within the connection layer, is provided at intervals in the lower foundation (3), and is connected to the superstructure (1), characterized in that it has a three-dimensional damping function and an energy absorption buffer function.
  8. The connection structure according to claim 1, characterized in that the vertical tensile-compressive elastic base (221) is a helical tensile-compressive base, a disc spring base, a thick rubber base, and/or an air spring base, providing a three-dimensional vibration damping function and energy absorption buffering function.

Description

This invention relates to the technical field of seismic isolation structures with restorable functionality, and more specifically, to a connecting structure equipped with three-dimensional seismic damping and energy absorption buffering functions. Current design concepts for building structures designed to cope with earthquakes primarily include seismic resilience design, performance-based seismic design, base isolation and energy dissipation damping technologies, seismic design of non-structural members, and structural optimization design. The development and application of these design concepts aim to improve the safety and functionality of building structures during earthquakes and mitigate losses caused by earthquake disasters. In recent years, earthquake-resistant structural systems capable of restoring functionality have become a hot topic in the field of earthquake engineering. The design goal of these systems is to maintain an acceptable level of functionality during an earthquake, enabling the building to be restored to usable function with minimal or no complex repairs afterward. This aims to improve the seismic resilience of urban buildings and infrastructure, and mitigate the economic losses and social impacts caused by earthquake disasters. The rocking self-centering structure, as a seismic isolation system with recoverable functionality, effectively suppresses residual displacement after an earthquake, ensuring the functionality and safety of the structure. Furthermore, because the displacement is small, subsequent repairs are easy and construction is rapid. Due to the seismic damping effect of the rocking action, the ductility design requirements of the structure itself are reduced, saving on structural costs. The rocking self-centering structure can be applied to various structural systems, including rocking bridge piers, reinforced concrete frame structures, steel structures, and shear wall structures. Due to its structural characteristics, the rocking self-centering structure offers significant economic and social value when used in the above-mentioned structures. While the rocking self-centering structure has the great advantages of remarkable seismic resistance and rapid recovery after an earthquake, it faces several challenges and problems in practical application. Designing a rocking self-centering structure requires considering multiple factors, such as structural stability, strength, and behavior under various seismic intensities, which increases the complexity of the design. Furthermore, enabling a structure to self-center after rocking typically requires special materials and techniques such as post-tensioned, prestressed, and tendons, which can increase the difficulty and cost of construction. To address these issues, the present invention provides a connecting structure with three-dimensional seismic damping and energy absorption buffering functions. This is a schematic diagram of the overall structure of the present invention.This is intended to demonstrate the self-centering roaring state of the present invention.This is a schematic top view of the connection structure in the connected state of the present invention.This is a schematic side view of the connection structure of the present invention.This is a schematic diagram illustrating the connection between the superstructure and the vertical connection device of the present invention. The technical solutions in embodiments of the present invention will be described clearly and completely below with reference to the drawings of the specification. However, it is clear that the embodiments described are only a part of, and not all, embodiments of the present invention. All other embodiments that a person skilled in the art could obtain without creative work based on the embodiments of the present invention are within the scope of the protection of the present invention. Furthermore, in the description of this invention, terms such as "center," "top," "bottom," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," and "outside" refer to directions or positional relationships based on the directions or positional relationships shown in the drawings. These terms are merely used to facilitate and simplify the explanation of this invention and do not indicate or imply that the referred device or element has a specific direction, or must be composed of or operate in a specific direction. They should not be understood as limiting the invention. As shown in Figures 1, 2, and 3, a specific embodiment of the present invention is applied to a cylindrical steel frame structure. The connecting structure, equipped with three-dimensional seismic damping and energy absorption buffering functions, includes a superstructure 1, a connecting layer, and a lower foundation 3. The superstructure 1 is specifically a large cylindrical storage facility such as a silo, liquefied natural gas (LNG) storage tank, oil stora