Integrated gear type inerter and negative stiffness composite energy dissipation outrigger device

Abstract

This invention provides an integrated gear-type inertial-capacity and negative stiffness composite energy dissipation outrigger device, relating to the technical field of negative stiffness energy dissipation and vibration reduction devices in building engineering. It includes an outrigger truss structure, frame columns, and a core tube. Multiple frame columns surround the core tube. The outrigger truss structure includes outrigger truss members, gear levers, preload springs, viscous dampers, and an inertial-capacity flywheel. One end of the outrigger truss member is connected to the core tube. The outrigger truss member is connected to the inertial-capacity flywheel via four sets of preload springs. The gear lever is rotatably connected to the outrigger truss member via a rotating assembly, with one end of the gear lever meshing with the inertial-capacity flywheel and the other end connected to the corresponding frame column via a bolt with an elongated hole on a third ear plate. This invention alleviates the technical problems of existing technologies, such as a bulky structure due to the large number of parts, difficulty in balancing volume and high output force requirements within a limited space, and the occurrence of jamming and gaps in some parts leading to idle rotation.

Description

Technical Field

[0001] This invention relates to the technical field of negative stiffness energy dissipation and vibration reduction devices in building engineering, and in particular to an integrated gear-type inertial capacity and negative stiffness composite energy dissipation extension arm device. Background Technology

[0002] In the development of high-rise and super high-rise structures, the frame-core tube structure system has become a very common structural system due to its ability to balance the needs of large spaces and lateral force resistance. To control structural lateral displacement and bending moment at the base of the core tube, high-rise buildings typically require a strengthening layer. In the strengthening layer, a ring truss is first used to allow the columns of the outer frame to deform in tandem; then, a high-stiffness outrigger truss connects the outer columns and the central core tube. This construction allows the core tube to bend and deform under external lateral loads, causing the outrigger truss to rotate, which in turn generates tensile and compressive deformation in the outer columns, enabling the core tube and outer frame to jointly resist external loads.

[0003] To address the challenge of improving the damping effect of energy-dissipating outrigger structures when the axial stiffness of the outer frame columns is insufficient, and also to reduce the high damping requirements of large-scale structures, the current approach primarily involves introducing negative stiffness devices into the energy-dissipating outrigger structure. The negative stiffness mechanism provides a negative stiffness force in the same direction as the displacement, thereby promoting relative displacement at both ends.

[0004] However, existing negative stiffness energy dissipation cantilever structures also have certain problems. Using an inertia container and a negative stiffness device in parallel can broaden the vibration control bandwidth of the negative stiffness energy dissipation cantilever structure, but the current combination of these two devices presents the following issues: First, the mechanical components of both the inertia container and the negative stiffness device are already quite complex; simply connecting them in parallel will lead to a surge in the number of parts and a bulky structure. Second, if the negative stiffness device and the inertia container are arranged independently, they will occupy the limited space within the cantilever truss, making it difficult to meet building requirements. Using a single large-tonnage preload spring requires excessively large dimensions and is costly. Finally, the gear meshing within the inertia container inevitably has gaps; when the structural displacement amplitude is small, these gaps cause the inertia container to malfunction, and the static friction at the meshing points can cause the gears to jam under small displacements. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated gear-type inertia-capacity and negative stiffness composite energy dissipation extension arm device to alleviate the technical problems in the prior art, such as the large number of parts causing a bulky structure, the difficulty in operation due to limited space, and the jamming and gaps in some parts causing idle rotation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: The present invention provides an integrated gear-type inertia-capacity and negative stiffness composite energy dissipation outrigger device, comprising an outrigger truss structure, frame columns and a core tube, wherein multiple frame columns are provided and the multiple frame columns surround the periphery of the core tube; The cantilever truss structure includes cantilever truss components, gear levers, preload springs, viscous dampers, and inertial capacity flywheels. One end of the cantilever truss component is connected to the core tube, and the other end of the cantilever truss component is connected to the corresponding frame column through the viscous damper. The cantilever truss component is connected to the inertial capacity flywheel via four sets of preloaded springs; The gear lever is rotatably connected to the outrigger truss member via a rotating assembly, and one end of the gear lever is engaged with the inertial flywheel, while the other end is connected to the corresponding frame column via an elongated hole bolt on the third ear plate.

[0007] Furthermore, the outrigger truss component includes an outrigger truss body, an inertia-capacity flywheel support assembly, a first ear plate, and a second ear plate. One end of the outrigger truss body is connected to the core tube, and the other end of the outrigger truss body is connected to the viscous damper through the second ear plate. The outrigger truss body encloses a receiving space for accommodating the inertial-capacitance flywheel, and the outrigger truss body is connected to the inertial-capacitance flywheel through the inertial-capacitance flywheel support assembly. The first ear plate is provided in four groups and is arranged in a diamond shape to be connected to the cantilever truss member. Each group of the first ear plate is connected to the inertial capacity flywheel through the corresponding preload spring.

[0008] Furthermore, the rotating assembly includes a shaft and a bearing clamp, the shaft being rotatably connected to one end of the outrigger truss body opposite to the core tube; The shaft is rotatably connected to the gear levers on both sides of the outrigger truss body via corresponding bearing clamps.

[0009] Furthermore, the gear lever includes a rod body and a gear lug, the rod body being rotatably connected to the shaft through a shaft hole; One end of the rod is provided with the gear lug, which meshes with the gear of the inertial flow flywheel.

[0010] Furthermore, the gear lever also includes a left lug plate, which is connected to the end of the rod opposite to the gear lug plate; The frame column is provided with the third ear plate, and the third ear plate has the elongated hole, which is connected to the left ear plate through a connector.

[0011] Furthermore, the inertial capacity flywheel support assembly includes a buckle and a support member, one end of the support member is connected to the outrigger truss body, and the other end of the support member is detachably connected to the buckle, so that a circular hole is formed between the buckle and the support member; The buckle is provided with two sets of insert rods, and the support member is provided with two sets of slots, and the insert rods are inserted into the corresponding slots; Both the buckle and the support are provided with connecting ears, and the connecting ears of the buckle are connected to the connecting ears of the support by bolts and nuts.

[0012] Furthermore, the inertial-capacity flywheel also includes a flywheel body and a connecting lug plate, wherein the flywheel body is connected to the corresponding preload spring via the connecting lug plate; The flywheel body and the gear are fixedly connected at the same center.

[0013] Furthermore, the cantilever truss body includes a fixed-end upper chord, a free-end upper chord, a free-end lower chord, a fixed-end lower chord, an upper fixed-end web member, and a lower fixed-end web member. One end of the fixed-end upper chord is connected to the free-end lower chord through the free-end upper chord, and the other end of the free-end lower chord is connected to the fixed-end lower chord. The upper fixed end web member and the lower fixed end web member are cross-connected between the upper fixed end web member and the lower fixed end web member, and both the upper fixed end web member and the lower fixed end web member are connected to the core tube.

[0014] Furthermore, the first connecting portion of the viscous damper is connected to the second ear plate via a connector; The frame columns are equipped with supporting components; The second connection of the viscous damper is connected to the connecting lug of the support member.

[0015] Furthermore, the first connecting member of the preload spring is connected to the corresponding first ear plate, and the second connecting member of the preload spring is connected to the corresponding connecting ear plate.

[0016] The present invention can achieve the following beneficial effects: This invention provides an integrated gear-type inertial-capacity and negative stiffness composite energy dissipation outrigger device, comprising an outrigger truss structure, frame columns, and a core tube. Multiple frame columns are provided, surrounding the core tube. The outrigger truss structure includes outrigger truss members, gear levers, preload springs, viscous dampers, and an inertial-capacity flywheel. One end of each outrigger truss member is connected to the core tube, and the other end is connected to a corresponding frame column via a viscous damper. The outrigger truss member is connected to the inertial-capacity flywheel via four sets of preload springs. The gear levers are rotatably connected to the outrigger truss members via rotating components, with one end of the gear lever meshing with the inertial-capacity flywheel and the other end connected to a corresponding frame column.

[0017] In this invention, the core tube and frame columns are connected by an outrigger truss structure, which includes an inertial displacement flywheel. During use, when there is relative movement between the core tube and the frame columns, the gear lever will shift along with the frame columns, causing the gear lever to rotate relative to the outrigger truss components. The end of the gear lever connected to the inertial displacement flywheel will rotate because it meshes with the flywheel. This causes each preloaded spring connected to the flywheel to undergo elastic deformation, releasing its stored potential energy and further rotating the flywheel. This amplifies the inertial force of the flywheel and also provides a negative stiffness force to drive the gear lever, thereby amplifying the displacement of the energy-dissipating outrigger damper and achieving enhanced damping efficiency.

[0018] Compared with existing technologies, the integrated gear-type inertial capacitance and negative stiffness composite energy dissipation outrigger device provided by this invention, by setting an outrigger truss structure between the core tube and the corresponding frame columns, allows the gear lever of the outrigger truss structure to rotate relative to the outrigger truss components when relative displacement occurs between the frame columns and the core tube. This rotation drives the inertial capacitance flywheel to rotate. During the rotation of the inertial capacitance flywheel, multiple preload springs connected to it simultaneously release preload, further amplifying the inertial force of the flywheel and providing a negative stiffness force to drive the gear lever, thereby amplifying the displacement of the energy dissipation outrigger damper and achieving damping efficiency enhancement. The inertial force provided by the inertial capacitance flywheel and the negative stiffness force provided by the preload springs control the high-frequency and low-frequency responses of the structure, respectively, achieving dual control. The preload of the preload springs can provide additional thrust when there is gap in the meshing part of the gear causing free spin or when friction causes jamming, ensuring the normal rotation of the inertial capacitance flywheel, achieving dual-purpose force.

[0019] The inertial capacity flywheel is both a crucial component of the inertial capacity and a preload amplification lever for the negative stiffness device, thus possessing a dual function and saving space in the device. It can be implemented without requiring numerous parts, avoiding technical problems such as bloated construction caused by an excessive number of components. Distributing the required preload spring tonnage across four smaller preload springs reduces the space occupied by the preload springs and also lowers costs.

[0020] In summary, the present invention at least alleviates the technical problems existing in the prior art, such as the large number of parts causing bloated structure, the difficulty in implementation due to limited space, and the jamming and gaps of some parts causing idle rotation. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 A front view schematic diagram of the integrated gear-type inertia-capacity and negative stiffness composite energy dissipation extension arm device provided in an embodiment of the present invention; Figure 2 A top view of the integrated gear-type inertia-capacity and negative stiffness composite energy dissipation extension arm device provided in an embodiment of the present invention. Figure 3 This is a front view of the cantilever truss of the integrated gear-type inertia-capacity and negative stiffness composite energy dissipation cantilever device provided in an embodiment of the present invention, under the installation state. Figure 4 for Figure 3 Schematic diagram of the AA section structure; Figure 5 for Figure 3 Schematic diagram of the BB section structure; Figure 6 The front view of the outrigger truss of the integrated gear-type inertia-capacity and negative stiffness composite energy dissipation outrigger device provided in an embodiment of the present invention; Figure 7 for Figure 6 Schematic diagram of the CC section structure in the diagram; Figure 8 for Figure 6 Schematic diagram of the DD section structure in the diagram; Figure 9 The front view of the inertia-capacity flywheel support component of the integrated gear-type inertia-capacity and negative stiffness composite energy dissipation reach arm device provided in an embodiment of the present invention; Figure 10A front view of the buckling portion of the integrated gear-type inertia-capacity and negative stiffness composite energy dissipation extension arm device provided in an embodiment of the present invention; Figure 11 A side view of the latching portion of the integrated gear-type inertia-capacity and negative stiffness composite energy dissipation extension arm device provided in an embodiment of the present invention; Figure 12 A front view of the support component of the integrated gear-type inertia-capacity and negative stiffness composite energy dissipation extension arm device provided in an embodiment of the present invention; Figure 13 A side view of the support component of the integrated gear-type inertia-capacity and negative stiffness composite energy dissipation outrigger device provided in an embodiment of the present invention; Figure 14 The front view of the frame column of the integrated gear-type inertia-capacity and negative stiffness composite energy dissipation outrigger device provided in an embodiment of the present invention; Figure 15 A side view of the frame column of the integrated gear-type inertia-capacity and negative stiffness composite energy dissipation outrigger device provided in an embodiment of the present invention; Figure 16 A front view of the gear lever of the integrated gear-type inertia-capacity and negative stiffness composite energy dissipation reach arm device provided in an embodiment of the present invention; Figure 17 Left view of the gear lever of the integrated gear-type inertia-capacity and negative stiffness composite energy dissipation arm device provided in an embodiment of the present invention; Figure 18 The right view of the gear lever of the integrated gear-type inertia-capacity and negative stiffness composite energy dissipation extension arm device provided in the embodiment of the present invention; Figure 19 A top view of the gear lever of the integrated gear-type inertia-capacity and negative stiffness composite energy dissipation extension arm device provided in an embodiment of the present invention; Figure 20 A front view of the preload spring of the integrated gear-type inertia-capacity and negative stiffness composite energy dissipation extension arm device provided in an embodiment of the present invention; Figure 21 A side view of the preload spring of the integrated gear-type inertia-capacity and negative stiffness composite energy dissipation extension arm device provided in an embodiment of the present invention; Figure 22 The front view of the inertial displacement flywheel of the integrated gear-type inertial displacement and negative stiffness composite energy dissipation reach arm device provided in an embodiment of the present invention; Figure 23 A side view of the inertial capacity flywheel of the integrated gear-type inertial capacity and negative stiffness composite energy dissipation outrigger device provided in an embodiment of the present invention; Figure 24 The front view of the viscous damper of the integrated gear-type inertia-capacity and negative stiffness composite energy dissipation outrigger device provided in an embodiment of the present invention; Figure 25This is a side view of the viscous damper of the integrated gear-type inertia-capacity and negative stiffness composite energy dissipation reach arm device provided in an embodiment of the present invention; Figure 26 The diagram shows the structure of the integrated gear-type inertia-capacity and negative stiffness composite energy dissipation extension arm device provided in the embodiment of the present invention under deformed state.

[0023] Icons: 1-Outrigger truss structure; 11-Outrigger truss component; 111-Outrigger truss body; 1111-Fixed end upper chord; 1112-Free end upper chord; 1113-Free end lower chord; 1114-Fixed end lower chord; 1115-Upper fixed end web member; 1116-Lower fixed end web member; 112-Inertia-capacity flywheel support assembly; 1121-Snap-on; 11211-Plug; 1122-Support member; 11221-Slot; 113-First ear plate; 114-Second ear plate; 12-Gear lever; 121-Rod body; 1211-Shaft hole; 122-Left ear plate; 123-Gear ear plate; 13-Preload spring; 131-First connecting piece; 132-Second connecting piece; 14-Viscous damper; 141-First connecting part; 142-Second connecting part; 15-Shaft; 16-Inertia flywheel; 161-Flywheel body; 162-Gear; 163-Connecting ear plate; 2-Frame column; 21-Supporting piece; 22-Third ear plate; 221-Oblong hole; 3-Core tube. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the description of this invention, it should be noted that the terms "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element 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 invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0031] Example 1 This embodiment provides an integrated gear-type inertia-capacity and negative stiffness composite energy dissipation extension arm device, referring to... Figure 1 , Figure 2 and Figure 3 The integrated gear-type inertial capacity and negative stiffness composite energy dissipation outrigger device includes an outrigger truss structure 1, frame columns 2, and a core tube 3. Multiple frame columns 2 are provided, and these multiple frame columns 2 surround the periphery of the core tube 3. The outrigger truss structure 1 includes an outrigger truss component 11, a gear lever 12, a preload spring 13, a viscous damper 14, and an inertial capacity flywheel 16. One end of the outrigger truss component 11 is connected to the core tube 3, and the other end of the outrigger truss component 11 is connected to the corresponding frame column 2 through the viscous damper 14. The outrigger truss component 11 is connected to the inertial capacity flywheel 16 through four sets of preload springs 13. The gear lever 12 is rotatably connected to the outrigger truss component 11 through a rotating assembly, and one end of the gear lever 12 is geared to the inertial capacity flywheel 16, while the other end is bolted to the corresponding frame column 2 through an elongated hole 221 on the third ear plate 22.

[0032] The embodiments of the present invention at least alleviate the technical problems existing in the prior art, such as the large number of parts causing bloated structure, the difficulty in implementation due to limited space, and the jamming and gaps of some parts causing idle rotation.

[0033] In this embodiment of the invention, the core tube 3 and the frame column 2 are connected by an outrigger truss structure 1, and the outrigger truss structure 1 includes an inertial displacement flywheel 16. In use, when there is relative movement between the core tube 3 and the frame column 2, the gear lever 12 will shift along with the frame column 2, thereby causing the gear lever 12 to rotate relative to the outrigger truss member 11. The end of the gear lever 12 connected to the inertial displacement flywheel 16 will rotate because it is geared to the inertial displacement flywheel 16. This causes each preload spring 13 connected to the inertial displacement flywheel 16 to undergo elastic deformation. The preload spring 13 releases its stored potential energy, pushing the inertial displacement flywheel 16 to rotate further, further amplifying the inertial force of the inertial displacement flywheel 16 and also providing a negative stiffness force to push the gear lever 12 to generate a negative stiffness force, thereby amplifying the displacement of the energy dissipation outrigger damper and achieving damping efficiency enhancement.

[0034] Compared with the prior art, the integrated gear-type inertial capacitance and negative stiffness composite energy dissipation outrigger device provided in this embodiment of the invention, by setting an outrigger truss structure 1 between the core tube 3 and the corresponding frame column 2, ensures that when relative displacement occurs between the frame column 2 and the core tube 3, the gear lever 12 of the outrigger truss structure 1 rotates relative to the outrigger truss member 11, thereby driving the inertial capacitance flywheel 16 to rotate. During the rotation of the inertial capacitance flywheel 16, multiple preload springs 13 connected to it simultaneously release preload to further drive the inertial capacitance flywheel 16 to rotate, further amplifying the inertial force of the inertial capacitance flywheel 16 and also providing a negative stiffness force to drive the gear lever 12, thereby amplifying the displacement of the energy dissipation outrigger damper and achieving damping efficiency enhancement. The inertial force provided by the inertial capacitance flywheel 16 and the negative stiffness force provided by the preload springs 13 respectively control the high-frequency and low-frequency responses of the structure, achieving dual control. The preload of the preload spring 13 can provide additional thrust when there is a gap at the meshing part of the gear 162 causing free rotation or when there is jamming due to friction, thus ensuring the normal rotation of the inertial flywheel 16 and achieving two purposes with one force.

[0035] The inertial capacity flywheel 16 serves as both a crucial component of the inertial capacity and a preload amplification lever for the preload spring 13 in the negative stiffness device, thus possessing a dual function and saving space in the device. It can be implemented without requiring numerous parts, avoiding technical problems such as bloated construction caused by an excessive number of components. Distributing the required preload spring 13 tonnage across four smaller preload springs 13 reduces the space occupied by the preload springs 13 and also lowers costs.

[0036] In an optional implementation of this embodiment, refer to Figure 6 , Figure 7 and Figure 8 The outrigger truss component 11 includes an outrigger truss body 111, an inertia-capacity flywheel support assembly 112, a first ear plate 113, and a second ear plate 114. One end of the outrigger truss body 111 is connected to the core tube 3, and the other end of the outrigger truss body 111 is connected to the viscous damper 14 through the second ear plate 114. The outrigger truss body 111 encloses a space for accommodating the inertia-capacity flywheel 16, and the outrigger truss body 111 is connected to the inertia-capacity flywheel 16 through the inertia-capacity flywheel support assembly 112. The first ear plate 113 is provided in four sets and is distributed in a diamond shape and connected to the outrigger truss component 11. Each set of first ear plates 113 is connected to the inertia-capacity flywheel 16 through a corresponding preload spring 13.

[0037] Specifically: the outrigger truss body 111 is a frame structure, and one end of the outrigger truss body 111 is connected to the core tube 3. The outrigger truss body 111 encloses a space for accommodating the inertial-capacity flywheel 16, and the inertial-capacity flywheel 16 is fixed relative to the outrigger truss body 111 by the inertial-capacity flywheel support assembly 112. The four sets of first ear plates 113 located in the accommodating space are used to connect with the corresponding preload springs 13 to limit the inertial-capacity flywheel 16 by fixing the other end of the preload springs 13. The second ear plate 114 located at the end of the outrigger truss body 111 is connected to the viscous damper 14 so that the viscous damper 14 positions the end of the outrigger truss body 111 away from the core tube 3.

[0038] Furthermore, referring to Figure 4 , Figure 5 and Figure 6 The rotating assembly includes a shaft 15 and a bearing clamp. The shaft 15 is rotatably connected to the end of the outrigger truss body 111 that is away from the core tube 3. The shaft 15 is rotatably connected to the gear levers 12 on both sides of the outrigger truss body 111 through corresponding bearing clamps.

[0039] Specifically, gear levers 12 are provided on both sides of the cantilever truss body 111, and the two sets of gear levers 12 are connected to the cantilever truss body 111 through the same shaft 15. That is, the shaft 15 passes through one set of gear levers 12, the cantilever truss body 111, and the other set of gear levers 12 in sequence, and the shaft 15 is connected to the gear levers 12 through corresponding bearing clips. Thus, during use, the two sets of gear levers 12 can be rotated relative to the cantilever truss body 111 through the shaft 15.

[0040] Furthermore, referring to Figure 16 , Figure 17 , Figure 18 and Figure 19The gear lever 12 includes a rod 121 and a gear lug 123. The rod 121 is rotatably connected to the shaft 15 through the shaft hole 1211. One end of the rod 121 is provided with a gear lug 123, which meshes with the gear 162 of the inertial flywheel 16.

[0041] Specifically: the rod 121 is connected to the shaft 15 through its shaft hole 1211, and a bearing clamp is provided between the shaft hole 1211 and the shaft 15. One end of the rod 121 is provided with a gear lug 123, which has an arc-shaped cross-section and teeth on its arc-shaped cross-section, so that the gear lug 123 can mesh with the gear 162 of the inertia flywheel 16. In use, when the rod 121 rotates, the gear lug 123 at its end rotates relative to the inertia flywheel 16, so that the inertia flywheel 16 stretches each of the preload springs 13 connected to it.

[0042] Furthermore, referring to Figure 14 , Figure 15 , Figure 16 , Figure 17 , Figure 18 and Figure 19 The gear lever 12 also includes a left ear plate 122, which is connected to the end of the rod 121 away from the gear ear plate 123; the frame column 2 is provided with a third ear plate 22, and the third ear plate 22 has an elongated hole 221, which is connected to the left ear plate 122 through a connector.

[0043] Specifically: The other end of the gear lever 12 is provided with a left ear plate 122, which is connected to the elongated hole 221 by bolts and nuts; and then, when in use, due to the vibration or movement of the frame column 2, the gear lever 12 rotates and moves relative to the frame column 2, while the elongated hole 221 provides a form for the left ear plate 122 to translate relative to the third ear plate 22.

[0044] In an optional implementation of this embodiment, refer to Figure 9 , Figure 10 , Figure 11 , Figure 12 and Figure 13 The inertial capacity flywheel support assembly 112 includes a buckle 1121 and a support member 1122. One end of the support member 1122 is connected to the cantilever truss body 111, and the other end of the support member 1122 is detachably connected to the buckle 1121, so that a circular hole is formed between the buckle 1121 and the support member 1122. The buckle 1121 is provided with two sets of insert rods 11211, and the support member 1122 is provided with two sets of slots 11221. The insert rods 11211 are inserted into the corresponding slots 11221. Both the buckle 1121 and the support member 1122 are provided with connecting ears, and the connecting ears of the buckle 1121 are connected to the connecting ears of the support member 1122 by bolts and nuts.

[0045] Specifically: the buckle 1121 has two insert rods 11211, and correspondingly, the support member 1122 has two slots 11221. By inserting the two insert rods 11211 of the buckle 1121 into the two slots 11221 of the support member 1122, the buckle 1121 and the support member 1122 are connected. Then, the connecting ears on both sides of the buckle 1121 are connected to the connecting ears on both sides of the support member 1122 by bolts and nuts, thereby fixing the buckle 1121 and the support member 1122. The connected buckle 1121 and the support member 1122 form a round hole, which is used to connect with the connecting shaft of the inertia-capacity flywheel 16. That is, both sides of the inertia-capacity flywheel 16 are provided with inertia-capacity flywheel support assemblies 112. After the connecting shaft of the inertia-capacity flywheel 16 is connected to the semicircular parts of the two sets of support members 1122 respectively, it is fixed by the buckle 1121.

[0046] Furthermore, referring to Figure 22 and Figure 23 The inertial capacity flywheel 16 also includes a flywheel body 161 and a connecting lug 163. The flywheel body 161 is connected to the corresponding preload spring 13 through the connecting lug 163. The flywheel body 161 and the gear 162 are fixedly connected to each other at the same center.

[0047] Specifically: The flywheel body 161 has two sets of gears 162 connected to its two sides via connecting shafts, and each set of gears 162 meshes with a gear lug 123; the flywheel body 161 is symmetrically connected with connecting lugs 163 at its top, bottom, left, and right positions, and each connecting lug 163 is connected to a corresponding preload spring 13, so that when the flywheel body 161 rotates, the four sets of preload springs 13 can be evenly stressed, thereby avoiding uneven stress on any connecting lug 163.

[0048] In an optional implementation of this embodiment, refer to Figure 6 The cantilever truss body 111 includes a fixed-end upper chord 1111, a free-end upper chord 1112, a free-end lower chord 1113, a fixed-end lower chord 1114, an upper fixed-end web member 1115, and a lower fixed-end web member 1116. One end of the fixed-end upper chord 1111 is connected to the free-end lower chord 1113 through the free-end upper chord 1112, and the other end of the free-end lower chord 1113 is connected to the fixed-end lower chord 1114. The upper fixed-end web member 1115 and the lower fixed-end web member 1116 are cross-connected between the fixed-end upper chord 1111 and the fixed-end lower chord 1114, and both the fixed-end upper chord 1111 and the fixed-end lower chord 1114 are connected to the core tube 3.

[0049] Specifically: the fixed-end upper chord 1111 and the fixed-end lower chord 1114 are distributed opposite to each other, and one end of each is connected to the outer wall of the core tube 3. The other ends of the fixed-end upper chord 1111 and the fixed-end lower chord 1114 are respectively connected to the free-end upper chord 1112 and the free-end lower chord 1113. The free-end upper chord 1112 and the free-end lower chord 1113 are then connected again, so that the connection end of the free-end upper chord 1112 and the free-end lower chord 1113 is the end that is rotatably connected to the gear lever 12. Between the fixed end upper chord 1111 and the fixed end lower chord 1114, an upper fixed end web member 1115 and a lower fixed end web member 1116 are provided to increase the stability of the cantilever truss body 111. The free end upper chord 1112, the free end lower chord 1113, the upper fixed end web member 1115, and the lower fixed end web member 1116 form a rhomboid accommodating space for the installation of the inertia flywheel 16.

[0050] In an optional implementation of this embodiment, refer to Figure 24 and Figure 25 The first connecting part 141 of the viscous damper 14 is connected to the second ear plate 114 through a connector; the frame column 2 is provided with a support 21; the second connecting part 142 of the viscous damper 14 is connected to the connecting ear of the support 21.

[0051] Specifically, the top of the viscous damper 14 is connected to the second ear plate 114 via the first connecting part 141, bolts, and nuts, while the bottom of the viscous damper 14 is connected to the connecting ear provided on the top of the support member 21 via the second connecting part 142, thereby satisfying the technical effect of damping enhancement through the deformation of the viscous damper 14.

[0052] In an optional implementation of this embodiment, refer to Figure 20 and Figure 21 The first connecting member 131 of the preload spring 13 is connected to the corresponding first ear plate 113, and the second connecting member 132 of the preload spring 13 is connected to the corresponding connecting ear plate 163.

[0053] Specifically: the preload spring 13 is connected to the corresponding first ear plate 113 through the first connector 131, and the connection method can be by bolt and nut connection, while the second connector 132 is connected to the corresponding connecting ear plate 163 of the inertial capacity flywheel 16, thereby realizing the limitation of the inertial capacity flywheel 16 relative to the cantilever truss body 111 by the four sets of preload springs 13.

[0054] During use, refer to Figure 26When the outrigger truss structure 1 and the frame column 2 undergo relative displacement, the gear lever 12 rotates accordingly, driving the inertial capacitance flywheel 16 to rotate. The inertial capacitance flywheel 16 further drives the corresponding preload spring 13 to rotate, thereby releasing the preload of the preload spring 13. This preload generates a negative stiffness force at the end of the gear lever 12, amplifying the deformation between the outrigger truss structure 1 and the frame column 2, and further amplifying the deformation of the viscous damper 14 connected in parallel, thus achieving damping enhancement. At the same time, the inertial force generated by the rotation of the inertial capacitance flywheel 16 is also transmitted to the end through the mechanism formed by the gear 162 and the gear lever 12, similarly amplifying the deformation between the outrigger truss structure 1 and the frame column 2. Since the flywheel rotates more violently and generates a larger inertial force during high-frequency vibration, the inertial capacitance flywheel 16 can significantly improve the structure's control capability for high-frequency vibration; while under low-frequency vibration conditions, it mainly relies on the negative stiffness force to participate in the work, improving the low-frequency vibration control effect.

[0055] It should be noted that the preload of the preload spring 13 can provide additional thrust when there is a gap in the meshing part of the gear 162 causing free rotation or when there is jamming due to friction, ensuring the normal rotation of the inertial capacity flywheel 16. The inertial capacity flywheel 16 is both an important component of inertial capacity and a preload amplification lever for the preload spring 13 of the negative stiffness device, possessing dual functions and saving space in the device. Therefore, this device integrates the inertial capacity and negative stiffness mechanism into one unit, effectively saving building space. At the same time, by using four preload springs 13 to share the preload requirement, the same negative stiffness force output can be achieved with four smaller preload springs 13, avoiding the use of a single, expensive, large-tonnage preload spring 13, thus saving operating costs.

[0056] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. The above embodiments in this specification are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An integrated gear-type inertia-capacity and negative stiffness composite energy dissipation extension arm device, characterized in that, It includes an outrigger truss structure (1), frame columns (2) and a core tube (3), wherein there are multiple frame columns (2), and the multiple frame columns (2) surround the periphery of the core tube (3); The outrigger truss structure (1) includes an outrigger truss member (11), a gear lever (12), a preload spring (13), a viscous damper (14), and an inertial capacity flywheel (16). One end of the outrigger truss member (11) is connected to the core tube (3), and the other end of the outrigger truss member (11) is connected to the corresponding frame column (2) through the viscous damper (14). The cantilever truss member (11) is connected to the inertial capacity flywheel (16) through four sets of preloaded springs (13); The gear lever (12) is rotatably connected to the outrigger truss member (11) via a rotating assembly, and one end of the gear lever (12) is geared to the inertial flywheel (16), while the other end is bolted to the corresponding frame column (2) via an elongated hole (221) on the third ear plate (22).

2. The integrated gear-type inertia-capacity and negative stiffness composite energy dissipation extension arm device according to claim 1, characterized in that, The outrigger truss component (11) includes an outrigger truss body (111), an inertial capacity flywheel support assembly (112), a first ear plate (113), and a second ear plate (114). One end of the outrigger truss body (111) is connected to the core tube (3), and the other end of the outrigger truss body (111) is connected to the viscous damper (14) through the second ear plate (114). The outrigger truss body (111) encloses a space for accommodating the inertial-capacitance flywheel (16), and the outrigger truss body (111) is connected to the inertial-capacitance flywheel (16) through the inertial-capacitance flywheel support assembly (112). The first ear plate (113) is provided in four groups and is distributed in a diamond shape to be connected to the cantilever truss member (11). Each group of the first ear plate (113) is connected to the inertial capacity flywheel (16) through the corresponding preload spring (13).

3. The integrated gear-type inertia-capacity and negative stiffness composite energy dissipation extension arm device according to claim 2, characterized in that, The rotating assembly includes a shaft (15) and a bearing clamp, the shaft (15) being rotatably connected to one end of the outrigger truss body (111) away from the core tube (3); The shaft (15) is rotatably connected to the gear levers (12) on both sides of the outrigger truss body (111) via the corresponding bearing clamps.

4. The integrated gear-type inertia-capacity and negative stiffness composite energy dissipation extension arm device according to claim 3, characterized in that, The gear lever (12) includes a rod (121) and a gear lug (123), and the rod (121) is rotatably connected to the shaft (15) through a shaft hole (1211); One end of the rod (121) is provided with the gear lug (123), and the gear lug (123) meshes with the gear (162) of the inertial flow flywheel (16).

5. The integrated gear-type inertia-capacity and negative stiffness composite energy dissipation extension arm device according to claim 4, characterized in that, The gear lever (12) also includes a left ear plate (122), which is connected to the end of the rod (121) opposite to the gear ear plate (123); The frame column (2) is provided with the third ear plate (22), and the third ear plate (22) is provided with the elongated hole (221), which is connected to the left ear plate (122) through a connector.

6. The integrated gear-type inertia-capacity and negative stiffness composite energy dissipation extension arm device according to claim 4, characterized in that, The inertial capacity flywheel support assembly (112) includes a buckle (1121) and a support member (1122). One end of the support member (1122) is connected to the outrigger truss body (111), and the other end of the support member (1122) is detachably connected to the buckle (1121) so that a circular hole is formed between the buckle (1121) and the support member (1122). The buckle (1121) is provided with two sets of insert rods (11211), and the support member (1122) is provided with two sets of slots (11221). The insert rods (11211) are inserted into the corresponding slots (11221). Both the buckle (1121) and the support member (1122) are provided with connecting ears, and the connecting ears of the buckle (1121) are connected to the connecting ears of the support member (1122) by bolts and nuts.

7. The integrated gear-type inertia-capacity and negative stiffness composite energy dissipation extension arm device according to claim 6, characterized in that, The inertial capacity flywheel (16) also includes a flywheel body (161) and a connecting lug (163), wherein the flywheel body (161) is connected to the corresponding preload spring (13) through the connecting lug (163); The flywheel body (161) and the gear (162) are fixedly connected at the same center.

8. The integrated gear-type inertia-capacity and negative stiffness composite energy dissipation extension arm device according to claim 2, characterized in that, The cantilever truss body (111) includes a fixed-end upper chord (1111), a free-end upper chord (1112), a free-end lower chord (1113), a fixed-end lower chord (1114), an upper fixed-end web member (1115), and a lower fixed-end web member (1116). One end of the fixed-end upper chord (1111) is connected to the free-end lower chord (1113) through the free-end upper chord (1112), and the other end of the free-end lower chord (1113) is connected to the fixed-end lower chord (1114). The upper fixed end web member (1115) and the lower fixed end web member (1116) are cross-connected between the upper fixed end upper chord (1111) and the lower fixed end web member (1114), and both the upper fixed end upper chord (1111) and the lower fixed end lower chord (1114) are connected to the core tube (3).

9. The integrated gear-type inertia-capacity and negative stiffness composite energy dissipation extension arm device according to claim 2, characterized in that, The first connecting part (141) of the viscous damper (14) is connected to the second ear plate (114) via a connector; The frame column (2) is provided with a support member (21); The second connection (142) of the viscous damper (14) is connected to the connecting ear of the support (21).

10. The integrated gear-type inertia-capacity and negative stiffness composite energy dissipation extension arm device according to claim 7, characterized in that, The first connector (131) of the preload spring (13) is connected to the corresponding first ear plate (113), and the second connector (132) of the preload spring (13) is connected to the corresponding connecting ear plate (163).

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