An energy dissipation structure

Abstract

This invention provides an energy-dissipating structure, including an upper constraint plate, a lower constraint plate spaced apart from the upper constraint plate, and two side constraint plates positioned between the upper and lower constraint plates. A constraint channel is formed between the upper constraint plate, the lower constraint plate, and the two side constraint plates. An energy-dissipating core is disposed within the constraint channel, with both ends of the core extending outwards to be hinged to other steel structures. A U-shaped energy-dissipating element is disposed within the energy-dissipating cavity, with its two ends connected to the inner wall of the side constraint plate and the side wall of the energy-dissipating core, respectively. The energy-dissipating core achieves multi-wave buckling for energy dissipation, while the constraint plates provide bidirectional orthogonal constraints, ensuring that the energy-dissipating core undergoes only axial plastic deformation under compression without instability. The U-shaped energy-dissipating element forms a second-level energy-dissipating area capable of withstanding bidirectional reciprocating loads, achieving efficient energy dissipation. Applying this energy-dissipating structure to steel structure buildings significantly improves the seismic resistance of super high-rise buildings.

Description

Technical Field

[0001] This utility model relates to the field of building technology, and more specifically, to an energy-consuming structure. Background Technology

[0002] Urban development is a continuous process of renewal. With the concentration of population, high-rise buildings, especially super high-rise residential buildings, hotels and office buildings, have become a prominent symbol of urban development.

[0003] These types of buildings generally adopt pure steel or steel-concrete hybrid structural systems. The energy dissipation and vibration reduction of steel structures mainly include two aspects: foundation isolation and passive energy dissipation and vibration reduction of the structure. Passive control involves setting energy dissipation devices in certain specific parts of the structure or modifying the structural design to change the overall dynamic characteristics of the structure, thereby reducing the energy borne by the main structure during an earthquake, and thus achieving the purpose of avoiding or mitigating the damage to the main structural components.

[0004] However, under moderate or major earthquakes, super high-rise steel structures will inevitably enter the elastoplastic stage due to the seismic energy input exceeding their elastic bearing capacity. In this stage, the yielding and plastic deformation of the steel will significantly change the structural stiffness distribution. Damage to key parts of the super high-rise steel structure will not only cause structural stiffness degradation, but may also trigger a series of collapses after the redistribution of internal forces.

[0005] Therefore, developing new energy-dissipating support structures and optimizing their connection with key nodes of super high-rise large and complex steel structures is of great significance for improving the seismic resistance of super high-rise buildings. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide an energy-consuming structure to solve the above problems.

[0007] The present invention adopts the following solution:

[0008] This application provides an energy-dissipating structure, including an upper constraint plate, a lower constraint plate spaced apart from the upper constraint plate, and two side constraint plates disposed between the upper constraint plate and the lower constraint plate; a constraint channel is formed between the upper constraint plate, the lower constraint plate, and the two side constraint plates, and an energy-dissipating core is disposed in the constraint channel, with both ends of the energy-dissipating core extending and protruding outside the constraint channel for hinge connection with other steel structures;

[0009] Among them, the middle part of the two side constraint plates protrudes into the constraint channel to form a constraint part, which abuts against the side wall of the energy-consuming inner core; the constraint channel is placed on both sides of the constraint part to form energy-consuming cavities, and a U-shaped energy-consuming component is provided in the energy-consuming cavity, with its two ends connected to the inner wall of the side constraint plate and the side wall of the energy-consuming inner core, respectively.

[0010] Furthermore, the upper constraint plate, the lower constraint plate, and the two side constraint plates are connected by high-strength bolts; the U-shaped energy-consuming component is also connected to the side constraint plate and the energy-consuming inner core by high-strength bolts respectively.

[0011] Furthermore, the energy-dissipating inner core includes a central limiting section, and a yielding section, a transition section, and a connecting section arranged symmetrically along both sides; the limiting section is formed as an outward protrusion that fits into the groove on the constraint part; one end of the U-shaped energy-dissipating component is connected to the yielding section; the connecting section is placed outside the constraint channel for hinged connection with other steel structures.

[0012] Furthermore, stiffening ribs are welded onto the connecting section.

[0013] Furthermore, one end of the stiffening rib extends into the transition section.

[0014] Furthermore, a filler block is welded to the middle of the upper constraint or the lower constraint plate, and a movable groove is provided in the middle of the energy-consuming inner core.

[0015] Furthermore, the limiting segment, the yielding segment, the transition segment, and the connecting segment are transitioned by rounded chamfers.

[0016] Furthermore, the energy-consuming inner core is made of steel with a strength-to-yield ratio greater than 1.25, an elongation greater than 25%, and an impact toughness of not less than 27J at room temperature.

[0017] Furthermore, the energy-consuming inner core and the constraint plate are made of Q235B steel.

[0018] Furthermore, an adhesive-free material is provided between the energy-consuming inner core and the constraint plate.

[0019] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0020] This invention provides an energy-dissipating structure that dissipates energy through multi-wave buckling via an energy-dissipating core, while the constraint plate provides bidirectional orthogonal constraint, ensuring that the energy-dissipating core undergoes only axial plastic deformation without instability under pressure. Furthermore, a U-shaped energy-dissipating component forms a second-level energy-dissipating area, and its unique double-limb constraint design enables the component to withstand bidirectional reciprocating loads, achieving efficient energy dissipation. Applying this energy-dissipating structure to steel structure buildings greatly enhances the seismic resistance of super high-rise buildings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of an energy-consuming structure according to an embodiment of the present invention;

[0023] Figure 2 This is a partially exploded structural diagram of an energy-consuming structure according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the energy-consuming inner core structure of an energy-consuming structure according to an embodiment of this utility model;

[0025] Figure 4 This is a schematic diagram of the lower constraint plate structure of an energy-consuming structure according to an embodiment of this utility model;

[0026] Figure 5 This is a partial assembly structure diagram of an energy-consuming structure according to an embodiment of this utility model;

[0027] Figure 6 This is a schematic diagram of the side constraint plate structure of an energy-consuming structure according to an embodiment of this utility model;

[0028] Figure 7 This is a schematic diagram of a U-shaped energy-consuming component structure according to an embodiment of this utility model;

[0029] Figure 8 This is a schematic diagram of a hinged connection between an energy-dissipating structure and a beam-column connection node according to an embodiment of this utility model. Figure 1 ;

[0030] Figure 9 This is a schematic diagram of a hinged connection between an energy-dissipating structure and a beam-column connection node according to an embodiment of this utility model. Figure 2 ;

[0031] Icons: 1. Upper constraint plate, 2. Side constraint plate, 3. Stiffening rib, 4. Filler block, 5. Energy-consuming inner core, 6. U-shaped energy-consuming component, 7. Lower constraint plate, 8. High-strength bolt, 9. Limiting section, 10. Yielding section, 11. Transition section, 12. Connecting section, 13. Movable groove, 14. Groove. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] Example

[0034] Combination Figures 1 to 9 As shown, this embodiment provides an energy-dissipating structure, including an upper constraint plate 1, a lower constraint plate 7 spaced apart from the upper constraint plate 1, and two side constraint plates 2 disposed between the upper constraint plate 1 and the lower constraint plate 7; a constraint channel is formed between the upper constraint plate 1, the lower constraint plate 7, and the two side constraint plates 2, and an energy-dissipating inner core 5 is disposed in the constraint channel, with both ends of the energy-dissipating inner core 5 extending and protruding outside the constraint channel to be hinged to other steel structures;

[0035] Among them, the middle part of the two side constraint plates 2 protrudes into the constraint channel to form a constraint part, which abuts against the side wall of the energy-consuming inner core 5; the constraint channel is placed on both sides of the constraint part to form energy-consuming cavities, and a U-shaped energy-consuming component 6 is provided in the energy-consuming cavity, with its two ends connected to the inner wall of the side constraint plate 2 and the side wall of the energy-consuming inner core 5 respectively.

[0036] In this embodiment, as Figure 1 and Figure 2 As shown, the upper constraint plate 1, the lower constraint plate 7, and the two side constraint plates 2 are connected by high-strength bolts; the U-shaped energy-dissipating component 6 is also connected to the side constraint plates 2 and the energy-dissipating inner core 5 by high-strength bolts respectively. The constraint plates work together to suppress the buckling of the core material. Their function is essentially to provide bidirectional orthogonal constraints, ensuring that the energy-dissipating inner core 5 only undergoes axial plastic deformation without instability under compression. As the only component among the energy-dissipating parts allowed to enter the plastic state, the energy-dissipating inner core 5 undergoes repeated tensile and compressive yielding under strong earthquakes, significantly reducing the energy input to the main structure.

[0037] Under the action of seismic energy input, the energy-dissipating inner core 5 generates directional displacement through the push and pull drive of external force, thereby applying compression or tensile load to the U-shaped energy-dissipating component. The input seismic energy is dissipated through the U-shaped energy-dissipating component by controllable plastic deformation and friction. The U-shaped energy-dissipating component forms a second-level energy dissipation. Its unique double-limb constraint design enables the component to withstand bidirectional reciprocating loads, achieving efficient energy dissipation.

[0038] Therefore, preferably, the energy-dissipating inner core 5 is made of steel with a strength-to-yield ratio greater than 1.25, an elongation greater than 25%, and an impact toughness of not less than 27J at room temperature. In this embodiment, the energy-dissipating inner core 5 and the constraint plate are made of Q235B steel. This type of steel is a semi-killed carbon structural steel with a yield point of 235MPa, which is easy to weld and has a certain elongation and good toughness. The yield strength of Q235B steel is not less than 235MPa, and the tensile strength is approximately 375-460MPa.

[0039] Specifically, such as Figures 3 to 7 As shown, the energy-dissipating inner core 5 includes a central limiting section 9, and yielding sections 10, transition sections 11, and connecting sections 12 arranged symmetrically on both sides. The limiting section 9, yielding section 10, transition section 11, and connecting section 12 are transitioned by rounded corners to prevent stress concentration. The connecting section 12 serves as a key connecting component between the structure and the energy-dissipating support, such as... Figure 8 and Figure 9 As shown, the connecting segment 12 can be hinged to the connection node of the beam and column in the steel structure to transfer the seismic load from the steel structure to the energy dissipation structure.

[0040] In this embodiment, the limiting segment 9 is formed as an outwardly protruding segment, which is adapted to the groove 14 on the constraint part. The protruding segment and the groove 14 are configured to provide a mechanical interlock between the energy-dissipating inner core 5 and the side constraint plate 2. Its core function is to prevent relative slippage between the energy-dissipating inner core 5 and the constraint plate and to precisely control the position of the yield segment 10. By geometrically interlocking, the energy-dissipating inner core 5 and the constraint plate are forced to work together, ensuring that plastic deformation only occurs in a predetermined area, while protecting the end connection and ensuring that the energy-dissipating support can perform stable energy dissipation performance. In this embodiment, the stiffening rib 3 is welded to the connecting segment 12 by fillet weld, which enhances the out-of-plane bending stiffness of the connecting segment 12. To avoid the welding heat effect from adversely affecting the fatigue performance of the yield segment 10, the end of the stiffening rib 3 should remain inside the transition segment 11, that is, it should not enter the yield segment 10.

[0041] In this embodiment, a filler block 4 is welded to the middle of the upper or lower constraint plate 7, and a movable groove 13 is provided in the middle of the energy-dissipating inner core 5; the length of the movable groove 13 along the length direction of the energy-dissipating inner core 5 is greater than the length of the filler block 4. Furthermore, in this embodiment, a non-adhesive material (not shown in the figures) is provided between the energy-dissipating inner core 5 and the constraint plate, meaning a gap is formed between the energy-dissipating inner core 5 and the constraint plate to accommodate the non-adhesive material, which can be rubber. Through the gap and the non-adhesive material, the energy-dissipating inner core 5 undergoes a small deformation stage during vibration, allowing it to freely and with low stress enter yielding, initiating plastic energy dissipation and avoiding premature constraint that could lead to a higher yield threshold and potential local buckling. Then, a large deformation stage (after the gap closes) occurs: the constraint outer plate effectively prevents overall buckling instability of the energy-dissipating inner core 5, enabling it to stably undergo large-amplitude plastic deformation cycles, maximizing the dissipation of seismic energy.

[0042] The construction process for this energy-consuming structure is described below:

[0043] First, the filler plate is welded to the upper end face of the lower constraint plate 7;

[0044] The energy-consuming inner core 5, which has the movable slot 13, is placed on the lower constraint plate 7;

[0045] The two side constraint plates 2 are placed on the side of the energy-consuming inner core 5 so that the protruding section is adapted to the limiting groove;

[0046] High-strength bolts 8 are used to connect the U-shaped energy-consuming component to the side constraint plate 2 and the energy-consuming inner core 5;

[0047] The upper constraint plate 1 clamps the U-shaped energy-consuming component, the energy-consuming inner core 5, the filling plate, and the side constraint plate 2, and uses high-strength bolts 8 for through-hole connection, and tightens the bolts in sequence according to the principle of initial tightening and final tightening.

[0048] This structure dissipates energy through multi-wave buckling via the energy-dissipating inner core 5, while the constraint plate provides bidirectional orthogonal constraint, ensuring that the energy-dissipating inner core 5 undergoes only axial plastic deformation without instability under compression. Furthermore, the U-shaped energy-dissipating component forms a second-level energy-dissipating area, and its unique double-limb constraint design enables the component to withstand bidirectional reciprocating loads, achieving efficient energy dissipation. Applying this energy-dissipating structure to steel structure buildings greatly enhances the seismic resistance of super high-rise buildings.

[0049] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions that fall within the scope of this utility model's concept are protected by this utility model.

[0050] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0052] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0053] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

Claims

1. An energy-consuming structure, characterized in that, It includes an upper constraint plate (1), a lower constraint plate (7) spaced apart from the upper constraint plate (1), and two side constraint plates (2) disposed between the upper constraint plate (1) and the lower constraint plate (7); a constraint channel is formed between the upper constraint plate (1), the lower constraint plate (7) and the two side constraint plates (2), and an energy-dissipating inner core (5) is provided in the constraint channel. The two ends of the energy-dissipating inner core (5) extend and protrude outside the constraint channel to be hinged to other steel structures. Among them, the middle part of the two side constraint plates (2) protrudes into the constraint channel to form a constraint part, which abuts against the side wall of the energy-consuming inner core (5); the constraint channel is placed on both sides of the constraint part to form energy-consuming cavities, and a U-shaped energy-consuming component (6) is provided in the energy-consuming cavity, with its two ends connected to the inner wall of the side constraint plate (2) and the side wall of the energy-consuming inner core (5) respectively.

2. The energy-consuming structure according to claim 1, characterized in that, The upper constraint plate (1), the lower constraint plate (7), and the two side constraint plates (2) are connected by high-strength bolts; the U-shaped energy-consuming component (6) is also connected to the side constraint plate (2) and the energy-consuming inner core (5) by high-strength bolts respectively.

3. The energy-consuming structure according to claim 1, characterized in that, The energy-consuming inner core (5) includes a limiting section (9) in the middle, and a yielding section (10), a transition section (11) and a connecting section (12) arranged symmetrically on both sides; the limiting section (9) is formed as an outward protrusion, which is adapted to the groove (14) on the constraint part; one end of the U-shaped energy-consuming component (6) is connected to the yielding section (10); the connecting section (12) is placed outside the constraint channel for hinge connection with other steel structures.

4. The energy-consuming structure according to claim 3, characterized in that, The connecting section (12) is also welded with stiffening ribs (3).

5. The energy-dissipating structure according to claim 4, characterized in that, One end of the stiffening rib (3) extends into the transition section (11).

6. The energy-consuming structure according to claim 3, characterized in that, A filler block (4) is welded to the middle of the upper constraint or the lower constraint plate (7), and a movable groove (13) is provided in the middle of the energy-consuming inner core (5).

7. The energy-consuming structure according to claim 3, characterized in that, The limiting segment (9), the yielding segment (10), the transition segment (11), and the connecting segment (12) are transitioned by a rounded chamfer.

8. The energy-consuming structure according to claim 1, characterized in that, The energy-consuming inner core (5) is made of steel with a strength-to-yield ratio greater than 1.25, an elongation greater than 25%, and an impact toughness of not less than 27J at room temperature.

9. The energy-dissipating structure according to claim 8, characterized in that, The energy-consuming inner core (5) and the constraint plate are made of Q235B steel.

10. The energy-dissipating structure according to any one of claims 1-9, characterized in that, A non-adhesive material is provided between the energy-consuming inner core (5) and the constraint plate.

Images