A mass-tuned shock-absorbing and energy-dissipating floor slab and a steel frame structure provided with the floor slab

Abstract

The present invention relates to the field of building structure technology, and in particular to a mass-tuned shock-absorbing and energy-absorbing floor and a steel frame structure on which the floor is installed, wherein the mass-tuned shock-absorbing and energy-absorbing floor includes a shock-absorbing beam and a floor slab; the shock-absorbing beam includes a steel frame beam, a supporting beam and a damping support member; the steel frame beam is arranged between two adjacent steel frame columns, and the two ends of the steel frame beam are respectively connected to the two steel frame columns; the supporting beam is arranged on the steel frame beam; the supporting beam includes a support plate and a supporting rib; a plurality of the supporting ribs are sequentially arranged on the lower side of the support plate along the length direction of the support plate; a spacer is left between two adjacent supporting ribs; the spacer is provided with a damping support member; and the floor slab is arranged on the supporting beam. The floor system can improve the overall seismic performance. The floor system is not only applicable to traditional steel frames, but also to recoverable functional steel frames.

Description

Technical Field

[0001] The present invention relates to the technical field of building structures, in particular to a mass-tuned, shock-absorbing and energy-absorbing floor and a steel frame structure provided with the floor. Background Art

[0002] Traditional earthquake-resistant structures primarily improve their seismic performance by increasing the stiffness and strength of their components, which, on the one hand, increases construction costs; on the other hand, as the mass of structural components increases, the seismic effects increase, and the structural safety reserve decreases. Furthermore, traditional earthquake-resistant structures rarely consider the ductility of the structure during the design process. When a major earthquake of magnitude 7 or above occurs, the structural components will undergo plastic energy dissipation, resulting in irreversible damage. To address the shortcomings of traditional earthquake-resistant structures, this patent proposes a mass-tuned, shock-absorbing and energy-dissipating floor and a steel frame structure equipped with this floor. This floor can not only play a role in shock absorption and energy dissipation, reducing the seismic effects of the structure, but also has the function of post-earthquake reset. Summary of the Invention

[0003] The object of the present invention is to provide a mass-tuned, shock-absorbing, and energy-absorbing floor and a steel frame structure provided with the floor, so as to solve at least one technical problem existing in the prior art.

[0004] In order to solve the above technical problems, the present invention provides a mass-tuned vibration-absorbing and energy-dissipating floor, comprising a vibration-absorbing beam and a floor slab;

[0005] The shock absorbing beam comprises a steel frame beam, a supporting beam and a damping support member;

[0006] The steel frame beam is arranged between two adjacent steel frame columns, and both ends of the steel frame beam are respectively connected to the two steel frame columns;

[0007] The supporting beam is arranged on the steel frame beam;

[0008] The supporting beam includes a supporting plate and supporting ribs;

[0009] A plurality of support ribs are sequentially arranged on the lower side of the support plate along the length direction of the support plate;

[0010] A spacing area is left between two adjacent support ribs;

[0011] The spacer area is provided with a damping support member;

[0012] The floor slab is arranged on the supporting beam.

[0013] Further, the damping support member includes a damping bearing;

[0014] A first connecting hole is provided on the upper flange of the steel frame beam;

[0015] A second connecting hole is provided at a position on the support plate corresponding to the spacer area;

[0016] The second connection hole and the first connection hole are located corresponding to each other;

[0017] The damping support is provided with a third connecting hole, and the position of the third connecting hole corresponds to the position of the first connecting hole and the second connecting hole;

[0018] The steel frame beam, the damping support and the supporting beam are fastened and connected by fasteners passing through the first connecting hole, the third connecting hole and the second connecting hole.

[0019] Preferably, the third connecting hole is a threaded hole, and the fasteners provided between the first connecting hole, the third connecting hole and the second connecting hole are self-tapping bolts.

[0020] Furthermore, the damping support includes an upper sealing plate, a lower sealing plate and an intermediate cushion body;

[0021] The intermediate pad is a viscoelastic material pad that can generate reverse resistance when compressed, stretched, twisted and sheared;

[0022] The upper sealing plate and the lower sealing plate are respectively arranged on the upper and lower sides of the middle cushion body to ensure that the upper and lower sides of the middle cushion body are evenly stressed;

[0023] The third connecting hole passes through the upper sealing plate, the middle cushion body and the lower sealing plate.

[0024] Furthermore, the damping support further includes an energy-dissipating metal core hole;

[0025] The energy-dissipating metal core hole passes through the upper sealing plate, the middle cushion body and the lower sealing plate;

[0026] An energy-dissipating metal core is provided in the energy-dissipating metal core hole to improve overall stability and enhance energy-dissipating capacity.

[0027] Furthermore, it also includes a damping portion;

[0028] The damping part includes a damper and a connecting piece;

[0029] The two connecting members are directly or indirectly connected to the connecting rods extending outwards from both ends of the damper;

[0030] The two connecting members are respectively directly or indirectly arranged on the floor slab and the steel frame beam.

[0031] Furthermore, the damping part further includes a universal ball joint;

[0032] The universal ball joint is provided between the connecting rod and the connecting member, so that the connecting member is indirectly connected to the connecting rod through the universal ball joint;

[0033] The universal ball joint is used to change the connection angle of the connecting member;

[0034] The connecting piece connected to the floor slab is horizontally attached to the lower end plane of the floor slab;

[0035] The connecting piece connected to the steel frame beam is vertically attached to the web of the frame beam.

[0036] Furthermore, the damping parts are symmetrically arranged in pairs on both sides of the steel frame beam in the width direction.

[0037] Furthermore, it also includes limiting steel strands and stiffening ribs;

[0038] The stiffening rib is arranged between the upper flange and the lower flange of the steel frame beam;

[0039] One end of the limiting steel strand is arranged on the stiffening rib, and the other end is arranged at the lower end of the floor slab, and is used to limit the overall structure in the event of a major earthquake.

[0040] Furthermore, it also includes resetting the steel strand and resetting the jack;

[0041] One end of the reset steel strand is arranged at the reset jack, and the other end is arranged at the lower end of the floor slab;

[0042] The reset jack is arranged on the stiffening rib and is used to tension the reset steel strand to improve the reset capability of the overall structure under a large earthquake state.

[0043] Furthermore, the damping support member further includes a shock absorbing spring;

[0044] The upper and lower ends of the shock-absorbing spring are respectively connected to the supporting beam and the upper flange of the steel frame beam and are in a compressed state.

[0045] Furthermore, the damping support member further includes a friction pendulum energy dissipation device;

[0046] The friction pendulum energy dissipation device includes an upper support plate, a lower support plate, and a slider;

[0047] The upper support plate and the lower support plate are fixedly connected to the supporting beam and the steel frame beam respectively;

[0048] The slider is arranged between the upper support plate and the lower support plate;

[0049] The upper end surface of the lower support plate is an arc curved surface;

[0050] The lower end surface of the slider fits with the arc surface of the lower support plate and can slide on the arc surface;

[0051] Limiting protrusions are also provided at the edges of the upper support plate and the lower support plate to prevent the slider from leaving between the upper support plate and the lower support plate;

[0052] The contact points between the slider and the upper support plate and the lower support plate have friction, which is used to dissipate energy in the event of a major earthquake.

[0053] On the other hand, the present application also discloses a steel frame structure with a mass-tuned, shock-absorbing and energy-absorbing floor.

[0054] By adopting the above technical solution, the present invention has the following beneficial effects:

[0055] (1) By introducing damping support members and damping parts, the floor system can effectively absorb and dissipate energy under external forces such as earthquakes, reducing the vibration amplitude of the structure and improving the overall seismic performance. In particular, the viscoelastic material pad and energy-absorbing metal core design in the damping support significantly enhance the energy dissipation capacity and stability.

[0056] (2) A universal ball joint is used to connect the damping part with the floor slab and steel frame beam, allowing the connection parts to adjust their angles in multiple directions to adapt to different vibration directions, thereby improving the flexibility of the connection and the adaptability of the structure.

[0057] (3) The setting of stiffening ribs enhances the stiffness and stability of the steel frame beams, while the use of limiting steel strands and reset steel strands combined with reset jacks not only limits the structural displacement during a major earthquake, but also enhances the reset capacity after the earthquake, which helps to quickly restore the structure to its original state.

[0058] (4) Shock-absorbing springs and polytetrafluoroethylene friction layers are set in the interval area between the supporting beam and the steel frame beam to form a multi-layer shock-absorbing mechanism.

[0059] (5) All components in the technical solution, such as the damping support and damping unit, adopt a modular design to facilitate installation and replacement. At the same time, the use of fasteners such as self-tapping bolts simplifies the connection process and improves construction efficiency.

[0060] (6) Through reasonable structural design and material selection, cost-effectiveness is also taken into account while improving seismic performance. Relatively low-cost materials such as viscoelastic material pads and energy-absorbing metal cores are used to reduce the overall cost while ensuring performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0062] Figure 1 The main view of the mass-tuned vibration-absorbing energy-absorbing floor;

[0063] Figure 2 Schematic diagram of the three-dimensional structure of the supporting beam;

[0064] Figure 3 It is a schematic diagram of the three-dimensional structure of the steel frame beam;

[0065] Figure 4 Schematic diagram of the three-dimensional structure of the damping support without the energy-dissipating metal core hole;

[0066] Figure 5 Schematic diagram of the three-dimensional structure of a damping support with an energy-dissipating metal core hole;

[0067] Figure 6 Schematic diagram of the three-dimensional structure of the damping part;

[0068] Figure 7 Schematic diagram of the planar structure of an embodiment using a damping support when viewed along the axial direction of a steel frame beam;

[0069] Figure 8 Schematic diagram of the planar structure of an embodiment of a friction pendulum energy dissipation device when viewed along the axial direction of a steel frame beam;

[0070] Figure 9 This is a main structural diagram of the friction pendulum energy dissipation device;

[0071] Figure 10 It is a schematic planar structural diagram of an embodiment using a shock-absorbing spring when viewed along the axial direction of a steel frame beam;

[0072] Figure 11 A main view of a building structure using a mass-tuned seismic and energy-absorbing floor;

[0073] Figure 12 Schematic diagram of the planar structure of an embodiment of using polytetrafluoroethylene coating when viewed along the axial direction of a steel frame beam;

[0074] Figure 13 This is a schematic planar structural diagram of an embodiment in which a polytetrafluoroethylene coating is used and a steel strand limiting device is provided, as viewed from the main direction;

[0075] Figure 14This is a schematic diagram of the three-dimensional structure of the disc spring energy dissipation structure from the main viewing angle;

[0076] Figure 15 This is a schematic diagram of the three-dimensional structure of the disc spring energy dissipation structure from a top-down perspective.

[0077] Reference numerals:

[0078] 1-Steel frame beam; 2-Steel frame column; 3-Supporting beam; 4-Floor slab; 5-Damping support member; 6-Support plate; 7-Supporting rib; 8-Spacer; 9-Damping support; 10-First connecting hole; 11-Second connecting hole; 12-Third connecting hole; 13-Upper sealing plate; 14-Lower sealing plate; 15-Intermediate cushion; 16-Energy dissipation metal core hole; 17-Damping part; 18-Damper; 19-Connector; 20-Connecting rod; 21-Universal ball joint; 22-Limiting steel strand; 23-Stiffening rib; 24-Reset steel strand; 25-Reset jack; 26-Friction pendulum energy dissipation device; 27-Shock-absorbing spring; 28-Connecting steel plate; 29-PTFE coating; 30-Upper flange; 31-Lower flange; 32-Web plate; 33-Upper support plate; 34-Lower support plate; 35-Slider; 36-Limiting bump; 37-Friction coating; 38-Disc spring assembly; 39-Center support rod; 40-Reserved slide groove. DETAILED DESCRIPTION

[0079] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0080] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0081] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0082] It should also be noted that the following specific embodiments or specific implementations are a series of optimized settings listed in the present invention to further explain the specific content of the invention, and these settings can be combined or used in association with each other.

[0083] The present invention will be further explained below with reference to specific embodiments.

[0084] Example 1

[0085] like Figure 1 、 2 As shown in FIG11 , a mass-tuned, shock-absorbing, and energy-dissipating floor provided in this embodiment includes a shock-absorbing beam and a floor slab 4;

[0086] The shock absorbing beam comprises a steel frame beam 1, a supporting beam 3 and a damping support member 5;

[0087] The steel frame beam 1 is arranged between two adjacent steel frame columns 2, and both ends of the steel frame beam 1 are connected to the two steel frame columns 2 respectively;

[0088] The supporting beam 3 is arranged on the steel frame beam 1;

[0089] The supporting beam 3 includes a supporting plate 6 and supporting ribs 7;

[0090] The plurality of support ribs 7 are sequentially arranged at the lower end of the support plate 6 along the length direction of the support plate 6;

[0091] A spacing area 8 is left between two adjacent support ribs 7;

[0092] The spacer area 8 is provided with a damping support member 5;

[0093] The floor slab 4 is arranged on the supporting beam 3 .

[0094] The mass-tuned shock-absorbing and energy-absorbing floor disclosed in this embodiment has damping support members 5 and support ribs 7 spaced apart between the supporting beam 3 and the steel frame beam 1, so that the overall structure has both good support stability and good energy-absorbing stability. The support ribs 7 and the damping support members 5 are spaced apart to avoid the disadvantage of uneven performance caused by concentrated distribution, so that the overall support and energy-absorbing structures of the floor structure are balanced without obvious stress concentration areas.

[0095] like Figure 2 、 3 , 4, 5 show further implementations of this embodiment, wherein the damping support member 5 includes a damping bearing 9;

[0096] The upper flange 30 of the steel frame beam 1 is provided with a first connection hole 10;

[0097] A second connection hole 11 is provided on the support plate 6 at a position corresponding to the spacer area 8;

[0098] The positions of the second connection hole 11 and the first connection hole 10 correspond to each other;

[0099] The damping support 9 is provided with a third connecting hole 12, and the position of the third connecting hole 12 corresponds to the position of the first connecting hole 10 and the second connecting hole 11;

[0100] The steel frame beam 1 , the damping bearing 9 and the supporting beam 3 are fastened and connected by fasteners passing through the first connecting hole 10 , the third connecting hole 12 and the second connecting hole 11 .

[0101] The mass-tuned, shock-absorbing, energy-absorbing floor disclosed in this embodiment utilizes damping supports 9, which are connected to steel frame beams 1 and support plates 6. This allows the floor slab 4 and shock-absorbing beams to function as an energy-absorbing floor, effectively extending the structural period, avoiding dominant periods, and preventing resonance. This reduces seismic effects on the main structure, ensuring the safety of the steel frame during major earthquakes. Furthermore, the damping supports 9, support beams 3, and steel frame beams 1 are assembled into shock-absorbing beams using self-tapping bolts. These beams are then transported to the site for direct installation with the steel frame columns 2 and floor slab 4, facilitating on-site construction.

[0102] As a preferred implementation manner of this embodiment, the third connection hole 12 is a threaded hole, and the fasteners provided between the first connection hole 10, the third connection hole 12 and the second connection hole 11 are self-tapping bolts.

[0103] like Figure 4 The figure shows a further implementation of this embodiment, wherein the damping support 9 includes an upper sealing plate 13, a lower sealing plate 14 and an intermediate cushion body 15;

[0104] The intermediate pad 15 is a pad made of viscoelastic material, which can generate reverse resistance when compressed, stretched, twisted and sheared;

[0105] The upper sealing plate 13 and the lower sealing plate 14 are respectively arranged on the upper and lower sides of the middle cushion body 15 to ensure that the upper and lower sides of the middle cushion body 15 are evenly stressed;

[0106] The third connection hole 12 passes through the upper sealing plate 13 , the middle cushion body 15 and the lower sealing plate 14 .

[0107] The mass-tuned, vibration-damping, and energy-dissipating floor structure disclosed in this embodiment dissipates energy regardless of the direction of stress and vibration generated by the earthquake during a major earthquake. Furthermore, the upper and lower end surfaces of the damping support 9 are integrally stressed by the upper and lower end surfaces of the structure, ensuring uniform and stable stress distribution.

[0108] like Figure 5 The figure shows a further implementation of this embodiment, wherein the damping support 9 further includes an energy-dissipating metal core hole 16;

[0109] The energy-dissipating metal core hole 16 passes through the upper sealing plate 13, the middle cushion body 15 and the lower sealing plate 14;

[0110] An energy-dissipating metal core is provided in the energy-dissipating metal core hole 16 to improve overall stability and enhance energy dissipation capability.

[0111] In the actual construction of the mass-tuned, shock-absorbing, and energy-absorbing floor disclosed in this embodiment, the energy-absorbing metal core is usually a lead core. By adding the energy-absorbing metal core, the damping coefficient of the damping support 9 can be adjusted, effectively improving the energy-absorbing capacity.

[0112] like Figure 1 、 6 The figure shows a further implementation of this embodiment, further comprising a damping portion 17;

[0113] The damping part 17 includes a damper 18 and a connecting member 19;

[0114] The two connecting members 19 are directly or indirectly connected to the connecting rods 20 extending outwards from both ends of the damper 18;

[0115] The two connecting members 19 are respectively provided on the floor slab 4 and the steel frame beam 1 directly or indirectly.

[0116] like Figure 6 The figure shows a further implementation of this embodiment, wherein the damping portion 17 further includes a universal ball joint 21;

[0117] The universal ball joint 21 is provided between the connecting rod 20 and the connecting member 19 , so that the connecting member 19 is indirectly connected to the connecting rod 20 via the universal ball joint 21 ;

[0118] The universal ball joint 21 is used to change the connection angle of the connecting member 19;

[0119] The connecting member 19 connected to the floor slab 4 is horizontally attached to the lower end plane of the floor slab 4;

[0120] The connecting member 19 connected to the steel frame beam 1 is vertically attached to the web 32 of the frame beam.

[0121] like Figure 7 The figure shows a further implementation of this embodiment, in which the damping parts 17 are symmetrically arranged in pairs on both sides of the steel frame beam 1 in the width direction.

[0122] The mass-tuned shock-absorbing and energy-dissipating floor disclosed in this embodiment is provided with a damping part 17, so that the overall damping coefficient can be adjusted within a wider range, and the damping part 17 can be flexibly arranged, and has a shock-absorbing effect on steel structures with different shock-absorbing requirements. A universal ball joint 21 is used to connect the damping part 17 with the floor slab 4 and the steel frame beam 1, allowing the connecting member 19 to adjust the angle in multiple directions, so that the damper 18 can adapt to the seismic effects in different directions and can function, thereby improving the flexibility of the connection and the adaptability of the structure. The provision of the damping part 17 with the universal ball joint 21 can, on the one hand, improve the out-of-plane stability of the steel frame beam 1; on the other hand, the displacement of the floor slab 4 in all directions can trigger the operation of the damper 18, thereby increasing the energy dissipation capacity of the shock-absorbing floor.

[0123] like Figure 1 The figure shows a further implementation of this embodiment, further comprising a limiting steel strand 22 and a stiffening rib 23;

[0124] The stiffening rib 23 is provided between the upper flange 30 and the lower flange 31 of the steel frame beam 1;

[0125] One end of the limiting steel strand 22 is arranged on the stiffening rib 23, and the other end is arranged at the lower end of the floor slab 4, for limiting the overall structure in the event of a major earthquake.

[0126] like Figure 1 The figure shows a further embodiment of this embodiment, further comprising a reset steel strand 24 and a reset jack 25;

[0127] One end of the reset steel strand 24 is arranged at the reset jack 25, and the other end is arranged at the lower end of the floor slab 4;

[0128] The reset jack 25 is provided on the stiffening rib 23 and is used to tension the reset steel strand 24 to enhance the reset capability of the overall structure in a severe earthquake.

[0129] To prevent excessive displacement of the floor slab 4 during a major earthquake, which could lead to failure of the damper 18, the mass-tuned, vibration-absorbing, and energy-absorbing floor disclosed in this embodiment incorporates limiter steel strands 22 connected to the steel frame beams 1 and the floor slab 4. To ensure rapid structural recovery in the event of a major earthquake, reset jacks 25 are installed at some beam ends. Reset steel strands 24 are tensioned by the reset jacks 25 to reset the floor slab.

[0130] like Figure 8 、 9 Shown is a further implementation of this embodiment, wherein the damping support member 5 further includes a friction pendulum energy dissipation device 26;

[0131] The friction pendulum energy dissipation device 26 includes an upper support plate 33, a lower support plate 34, and a slider 35;

[0132] The upper support plate 33 and the lower support plate 34 are fixedly connected to the supporting beam 3 and the steel frame beam 1 respectively;

[0133] The slider 35 is disposed between the upper support plate 33 and the lower support plate 34;

[0134] The upper end surface of the lower support plate 34 is an arc curved surface;

[0135] The lower end surface of the slider 35 fits in with the arc surface of the lower support plate 34 and can slide on the arc surface;

[0136] Limiting protrusions 36 are further provided at the edges of the upper support plate 33 and the lower support plate 34 to prevent the slider 35 from leaving between the upper support plate 33 and the lower support plate 34;

[0137] The contact areas between the slider 35 and the upper support plate 33 and the lower support plate 34 are provided with a friction coating 37 for dissipating energy in the event of a large earthquake.

[0138] The friction coating 37 can be made of any coating material with high surface friction, and the preferred material is polytetrafluoroethylene.

[0139] like Figure 10 Shown is a further implementation of this embodiment, the damping support member 5 further includes a shock absorbing spring 27;

[0140] The upper and lower ends of the shock-absorbing spring 27 are respectively connected to the supporting beam 3 and the upper flange of the steel frame beam 1 and are in a compressed state.

[0141] Different from the rubber bearing, the high damping shock absorbing spring 27 can reduce both horizontal earthquake action and vertical earthquake action.

[0142] The mass, stiffness, and damping coefficient of a mass-tuned, vibration-damping, energy-absorbing floor disclosed in this embodiment can be adjusted. The mass of the energy-absorbing floor can be adjusted by adjusting the thickness of the floor slab 4; the stiffness can be adjusted by varying the cross-section and stiffness of the steel frame beam 1 and the supporting beam 3; and the damping coefficient can be adjusted by the number of damping elements 17 or by providing rubber bearings with energy-absorbing metal cores.

[0143] By adopting the above technical solution, the present invention has the following beneficial effects:

[0144] (1) By arranging damping support members 5 and support ribs 7 at intervals between the supporting beam 3 and the steel frame beam 1, the dual advantages of structural support stability and energy dissipation stability are achieved, while avoiding the performance imbalance problem that may be caused by concentrated distribution.

[0145] (2) By setting up the damping support 9 and connecting it with the steel frame beam 1 and the supporting beam 3, the system consisting of the floor slab and the shock-absorbing beam can perform inertia adjustment and energy transfer, effectively extending the structural period, reducing the resonance risk, and reducing the impact of earthquakes on the main structure.

[0146] (3) The damping support 9, the supporting beam 3 and the steel frame beam 1 are assembled into a shock-absorbing beam by self-tapping bolts, which is convenient for on-site construction and quick installation.

[0147] (4) The design of the upper sealing plate 13 and the lower sealing plate 14 of the damping support 9 ensures uniform stress on the middle cushion body 15 and improves the stability of the structure.

[0148] (5) By adding an energy-absorbing metal core, the damping coefficient of the damping support 9 can be adjusted to effectively regulate the energy-absorbing capacity.

[0149] (6) The damping part 17 is connected to the universal ball joint 21, which allows the angle to be adjusted in multiple directions, thereby improving the adaptability of the structure to earthquakes in different directions.

[0150] (7) By setting the limiting steel strands 22 and the resetting steel strands 24, the limiting and resetting capabilities of the structure in a large earthquake state are enhanced, ensuring the structural safety and rapid recovery function.

[0151] (8) The friction pendulum energy dissipation device 26 and the shock-absorbing spring 27 provide an additional energy dissipation mechanism, thereby enhancing the shock-absorbing performance of the structure.

[0152] (9) This technical solution allows the mass, stiffness and damping coefficient to be adjusted to suit different engineering requirements by adjusting the thickness of the floor slab 4, the cross-sections of the steel frame beam 1 and the supporting beam 3, and the number of damping parts 17 or providing rubber bearings with energy-absorbing metal cores.

[0153] (10) The friction pendulum energy dissipation device 26 works in conjunction with the damper 18 and has a significant energy dissipation capacity; the friction pendulum energy dissipation device 26 is used in conjunction with the limiting steel strand 22 to effectively protect the friction pendulum energy dissipation device 26 from failure due to excessive displacement of the floor slab 4; the friction pendulum energy dissipation device 26 is used in conjunction with the reset steel strand 24 and the reset jack 25 to ensure that the friction pendulum shock-absorbing beam structure has a reset function, ensuring the structural safety and rapid recovery of the function.

[0154] Example 2

[0155] This embodiment provides a mass-tuned, shock-absorbing, and energy-absorbing floor. The difference from Embodiment 1 is that the supporting beams 3 and the damping support members 5 in Embodiment 1 are replaced by the connecting steel plates 28 in this embodiment.

[0156] like Figure 11-12 The embodiment shown provides a mass-tuned, shock-absorbing, and energy-absorbing floor comprising a steel frame beam 1, a steel frame column 2, a floor slab 4, and a connecting steel plate 28;

[0157] The steel frame beam 1 is arranged between the steel frame columns 2, and both ends of the steel frame beam 1 are connected to two of the steel frame columns 2 respectively;

[0158] The upper end of the connecting steel plate 28 is fixedly connected to the floor slab 4;

[0159] A polytetrafluoroethylene coating 29 is provided on the lower end surface of the connecting plate, and the lower end of the coating surface is pressed on the steel frame beam 1. The energy dissipation function of the floor is achieved by the friction between the polytetrafluoroethylene coating 29 and the steel frame beam 1.

[0160] like Figure 6 The figure shows a further implementation of this embodiment, further comprising a damping portion 17;

[0161] The damping part 17 includes a damper 18 and a connecting member 19;

[0162] The two connecting members 19 are directly or indirectly connected to the connecting rods 20 extending outwards from both ends of the damper 18;

[0163] The two connecting members 19 are respectively provided on the floor slab 4 and the steel frame beam 1 directly or indirectly.

[0164] like Figure 6 The figure shows a further implementation of this embodiment, wherein the damping portion 17 further includes a universal ball joint 21;

[0165] The universal ball joint 21 is provided between the connecting rod 20 and the connecting member 19 , so that the connecting member 19 is indirectly connected to the connecting rod 20 via the universal ball joint 21 ;

[0166] The universal ball joint 21 is used to change the connection angle of the connecting member 19;

[0167] The connecting member 19 connected to the floor slab 4 is horizontally attached to the lower end plane of the floor slab 4;

[0168] The connecting member 19 connected to the steel frame beam 1 is vertically attached to the web 32 of the frame beam.

[0169] like Figure 12 The figure shows a further implementation of this embodiment, in which the damping parts 17 are symmetrically arranged in pairs on both sides of the steel frame beam 1 in the width direction.

[0170] The mass-tuned shock-absorbing and energy-dissipating floor disclosed in this embodiment is provided with a damping part 17, so that the overall damping coefficient can be adjusted within a wider range, and the damping part 17 can be flexibly arranged, and has a shock-absorbing effect on steel structures with different shock-absorbing requirements. A universal ball joint 21 is used to connect the damping part 17 with the floor slab 4 and the steel frame beam 1, allowing the connecting member 19 to adjust the angle in multiple directions, so that the damper 18 can adapt to the seismic effects in different directions and can function, thereby improving the flexibility of the connection and the adaptability of the structure. The provision of the damping part 17 with the universal ball joint 21 can, on the one hand, improve the out-of-plane stability of the steel frame beam 1; on the other hand, the displacement of the floor slab 4 in all directions can trigger the operation of the damper 18, thereby increasing the energy dissipation capacity of the shock-absorbing floor.

[0171] like Figure 13 The figure shows a further implementation of this embodiment, further comprising a limiting steel strand 22 and a stiffening rib 23;

[0172] The stiffening rib 23 is provided between the upper flange 30 and the lower flange 31 of the steel frame beam 1;

[0173] One end of the limiting steel strand 22 is arranged on the stiffening rib 23, and the other end is arranged at the lower end of the floor slab 4, for limiting the overall structure in the event of a major earthquake.

[0174] In order to prevent the excessive displacement of the floor slab 4 under a strong earthquake, which may cause the failure of the damper 18, a mass-tuned vibration-absorbing energy-dissipating floor disclosed in this embodiment is provided with a limiting steel strand 22 connected to the steel frame beam 1 and the floor slab 4.

[0175] By adopting the above technical solution, the present invention has the following beneficial effects:

[0176] (1) The friction interface formed between the polytetrafluoroethylene coating 29 at the lower end of the steel plate 28 and the steel frame beam 1 effectively converts vibration energy into frictional heat when the floor is subjected to external forces, thereby significantly reducing the vibration response of the structure. This frictional energy dissipation mechanism improves the seismic performance of the floor and protects the main structure from severe damage caused by natural disasters such as earthquakes.

[0177] (2) Compared with the traditional damping support member 5, the design of connecting the steel plate 28 and the polytetrafluoroethylene coating 29 is simpler, reduces the number of installation steps and the number of required parts, and reduces the construction difficulty and cost. At the same time, this design is easy to maintain and replace, which improves the overall maintenance efficiency and economy of the building.

[0178] (3) The fixed connection between the connecting steel plate 28 and the floor slab 4 enhances the integrity of the floor slab, allowing the load to be distributed more evenly when the floor slab is subjected to stress, thereby avoiding the occurrence of local stress concentration. This helps to improve the overall stability and bearing capacity of the floor slab and extend the service life of the building.

[0179] (4) This technical solution is not only applicable to new buildings, but is also easy to retrofit and upgrade existing buildings. By replacing or adding connecting steel plates 28 and polytetrafluoroethylene coatings 29, the energy dissipation capacity of existing floor slabs can be effectively improved, and their seismic performance can be enhanced, providing a cost-effective solution for seismic reinforcement of old buildings.

[0180] Example 3

[0181] This application also discloses a steel frame structure equipped with the mass-tuned, seismic-absorbing, and energy-dissipating floor described in Example 1 or 2. The steel frame can be a conventional steel frame or a resilient steel frame. This floor system is applicable not only to conventional steel frames but also to resilient steel frames, thus having a wide range of applicability.

[0182] Example 4

[0183] like Figure 14-15 As shown, a disc spring energy dissipation structure is provided between the floor slab 4 and the steel frame column;

[0184] The disc spring energy dissipation structure includes a disc spring assembly 38, a central support rod 39 and a reserved slide groove 40;

[0185] One end of the central support rod 39 is fixed on the steel frame column 2, and the other end is inserted into the reserved slide groove 40;

[0186] The disc spring assembly 38 is installed on the central support rod 39;

[0187] The inner diameter height of the reserved sliding groove 40 is greater than the diameter of the central support rod and smaller than the outer diameter of the disc spring.

[0188] As a further implementation of this embodiment, at least two disc spring assemblies 38 and the central support rod 39 are arranged in parallel in the horizontal direction in one of the reserved chute 40;

[0189] There is a spacing of not less than 20 cm between two adjacent disc spring assemblies 38 .

[0190] As a further implementation of this embodiment, in the initial state, the distance between the inner walls on both sides of the reserved chute and the central support rod closest to the inner walls is not less than 50 centimeters.

[0191] Under the action of a horizontal earthquake along the axial direction of the center strut, part of the horizontal force of the floor slab 4 can be directly transmitted to the steel frame column 2 through the disc spring assembly 38, reducing the horizontal force of the steel frame beam 1 and improving the structural safety. On the other hand, the disc spring assembly 38 works together with the damping support member 5 to improve the post-earthquake reset ability of the floor slab 4. After the disc spring assembly 38 and the center strut 39 are connected as a whole, they are welded to the steel frame column 4 in the factory and transported to the site for direct installation. When constructing the floor slab 4, a sliding groove 40 is reserved to ensure that the center strut 39 can move freely under the action of horizontal forces in all directions. Under the action of an earthquake in the radial direction of the center strut, the center strut 39 can move within the reserved sliding groove 40 to prevent the center strut 39 from being stuck and damaged.

[0192] By adopting the above technical solution, the present invention has the following beneficial effects:

[0193] (1) By setting up a disc spring energy dissipation structure, under the action of an earthquake, part of the horizontal force of the floor slab 4 can be directly transmitted to the steel frame column 2 through the disc spring assembly 38, effectively reducing the horizontal force borne by the steel frame beam 1, thereby significantly improving the safety of the overall structure.

[0194] (2) The synergistic effect of the disc spring assembly 38 and the damping support member 5 enhances the reset ability of the floor slab 4 after an earthquake, helps to quickly restore the structural function, and reduces the time and cost of post-earthquake repair.

[0195] (3) A plurality of disc spring assemblies 38 are reasonably arranged in the reserved chute 40, and appropriate spacing is maintained between adjacent disc spring assemblies 38, as well as sufficient distance between the inner walls on both sides of the reserved chute 40 and the central support rod 39, thereby avoiding mutual interference between adjacent disc spring assemblies 38 and ensuring that the central support rod 39 can move freely when subjected to horizontal forces in all directions, effectively preventing the central support rod 39 from being stuck or damaged, and ensuring that the disc spring energy-absorbing structure can fully exert its energy-absorbing function under the action of an earthquake.

[0196] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements 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. A mass-tuned, shock-absorbing, and energy-absorbing floor, characterized in that: including shock absorbing beams and floor slabs; The shock absorbing beam comprises a steel frame beam, a supporting beam and a damping support member; The steel frame beam is arranged between two adjacent steel frame columns, and both ends of the steel frame beam are respectively connected to the two steel frame columns; The supporting beam is arranged on the steel frame beam; The supporting beam includes a supporting plate and supporting ribs; A plurality of support ribs are sequentially arranged on the lower side of the support plate along the length direction of the support plate; A spacing area is left between two adjacent support ribs; The spacer area is provided with a damping support member; The floor slab is arranged on the supporting beam; The damping support member includes a damping bearing; A first connecting hole is provided on the upper flange of the steel frame beam; A second connecting hole is provided at a position on the support plate corresponding to the spacer area; The second connection hole and the first connection hole are located corresponding to each other; The damping support is provided with a third connecting hole, and the position of the third connecting hole corresponds to the position of the first connecting hole and the second connecting hole; Fastening the steel frame beam, the damping support and the supporting beam together by passing a fastener through the first connecting hole, the third connecting hole and the second connecting hole; The damping support includes an upper sealing plate, a lower sealing plate and an intermediate pad; The intermediate pad is a viscoelastic material pad that can generate reverse resistance when compressed, stretched, twisted and sheared; The upper sealing plate and the lower sealing plate are respectively arranged on the upper and lower sides of the middle cushion body to ensure that the upper and lower sides of the middle cushion body are evenly stressed; The third connecting hole passes through the upper sealing plate, the middle cushion body and the lower sealing plate.

2. The mass-tuned, shock-absorbing and energy-absorbing floor according to claim 1 is characterized in that: The damping support further includes an energy-consuming metal core hole; The energy-dissipating metal core hole passes through the upper sealing plate, the middle cushion body and the lower sealing plate; An energy-dissipating metal core is provided in the energy-dissipating metal core hole to improve overall stability and enhance energy-dissipating capacity.

3. The mass-tuned, shock-absorbing and energy-absorbing floor according to claim 1 is characterized in that: Also includes a damping portion; The damping part includes a damper and a connecting piece; The two connecting members are directly or indirectly connected to the connecting rods extending outwards from both ends of the damper; The two connecting members are respectively directly or indirectly arranged on the floor slab and the steel frame beam; The damping part also includes a universal ball joint; The universal ball joint is provided between the connecting rod and the connecting member, so that the connecting member is indirectly connected to the connecting rod through the universal ball joint; The universal ball joint is used to change the connection angle of the connecting member; The connecting piece connected to the floor slab is horizontally attached to the lower end plane of the floor slab; The connecting piece connected to the steel frame beam is vertically attached to the web of the frame beam.

4. The mass-tuned, shock-absorbing, and energy-absorbing floor according to claim 3 is characterized in that: The damping parts are symmetrically arranged in pairs on both sides of the steel frame beam in the width direction.

5. The mass-tuned, shock-absorbing and energy-absorbing floor according to claim 1 is characterized in that: It also includes spacer strands and stiffeners; The stiffening rib is arranged between the upper flange and the lower flange of the steel frame beam; One end of the limiting steel strand is arranged on the stiffening rib, and the other end is arranged at the lower end of the floor slab, and is used to limit the overall structure in the event of a major earthquake.

6. The mass-tuned, shock-absorbing, and energy-absorbing floor according to claim 5, is characterized in that: Also includes reset strands and reset jacks; One end of the reset steel strand is arranged at the reset jack, and the other end is arranged at the lower end of the floor slab; The reset jack is arranged on the stiffening rib and is used to tension the reset steel strand to improve the reset capability of the overall structure under a large earthquake state.

7. The mass-tuned, shock-absorbing, and energy-absorbing floor according to claim 1, is characterized in that: The damping support member further includes a shock absorbing spring; The upper and lower ends of the shock-absorbing spring are respectively in contact with the supporting beam and the steel frame beam and are in a compressed state.

8. A steel frame structure equipped with the mass-tuned, shock-absorbing and energy-absorbing floor structure according to any one of claims 1 to 7.

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