CN116464181A - Truss damping device - Google Patents
Truss damping device Download PDFInfo
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- CN116464181A CN116464181A CN202310458713.1A CN202310458713A CN116464181A CN 116464181 A CN116464181 A CN 116464181A CN 202310458713 A CN202310458713 A CN 202310458713A CN 116464181 A CN116464181 A CN 116464181A
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- truss
- damping
- fixedly connected
- spring
- plate
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- 238000013016 damping Methods 0.000 title claims abstract description 128
- 230000007246 mechanism Effects 0.000 claims description 71
- 239000011229 interlayer Substances 0.000 claims description 22
- 230000035939 shock Effects 0.000 claims description 22
- 239000012530 fluid Substances 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000005389 magnetism Effects 0.000 claims description 7
- 239000012634 fragment Substances 0.000 claims description 6
- 239000010410 layer Substances 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 claims 5
- 230000000694 effects Effects 0.000 abstract description 5
- 238000009435 building construction Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 210000002435 tendon Anatomy 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention provides a truss damping device, which belongs to the technical field of building construction, and comprises a shear frame, damping springs and damping devices, wherein the shear frame is arranged in the middle of a truss, two sides of the shear frame are fixedly connected with adjacent trusses through screws, the damping springs are arranged in the shear frame, and the shear frame and the damping springs are used for damping the trusses in a large range to prevent the trusses from violent vibration; the damping device is arranged in the shear frame at intervals with the damping springs and is used for further damping the shear frame to be a truss, so that the safety of the truss is improved; the device also comprises a damping device, wherein one end of the damping device is fixed with the top of the shear frame, and the other end of the damping device is fixed with the truss; the device can solve current truss damper and can not adjust according to truss hookup location's difference for damping effect is unobvious between the truss, and the security of truss is difficult to the problem of assurance.
Description
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to a truss damping device.
Background
The truss is a supporting beam structure formed by connecting rods to each other at both ends by hinges through welding, riveting or bolts. The truss has the advantages that the members are mainly subjected to tension or compression, so that the strength of materials can be fully utilized, the materials can be saved compared with the solid web beam when the span is large, the dead weight is reduced, and the rigidity is increased. The truss can be divided into a triangular truss, a trapezoidal truss, a polygonal truss, a hollow truss and a truss bridge according to the structure. When the appearance of the truss is similar to a bending moment diagram of a simply supported beam in terms of mechanics, the axial forces of the upper chord member and the lower chord member are uniformly distributed, the axial force of the web member is small, and the material is most saved; from the aspects of material and manufacturing, the wood truss is made into a triangle, the steel truss adopts a trapezoid or a parallel chord shape, and the reinforced concrete and prestressed concrete truss is preferably polygonal or trapezoid.
In recent years, trusses are used in many large outdoor buildings, and damping problems are critical issues to consider. The existing truss damping mechanism cannot be adjusted according to different truss connection positions, so that damping effects among trusses are not obvious, and safety of the trusses is difficult to guarantee.
Disclosure of Invention
In view of the above, the invention provides a truss damping device, which can solve the problems that the existing truss damping mechanism cannot be adjusted according to different truss connection positions, so that the damping effect between trusses is not obvious, and the safety of the trusses is difficult to ensure.
The invention is realized in the following way:
the invention provides a truss damping device, which comprises a shear frame, damping springs and damping devices, wherein the shear frame is arranged in the middle of a truss, two sides of the shear frame are fixedly connected with adjacent trusses through screws, the damping springs are arranged in the shear frame, and the shear frame and the damping springs are used for damping the trusses in a large range to prevent the trusses from violent vibration; the damping device is arranged in the shear frame and spaced from the damping spring, and is used for further damping the vibration of the shear frame to improve the safety of the truss;
the damping device further comprises a damping device, wherein the damping device is arranged between adjacent trusses and is used for reducing transmission of vibration between the trusses.
The truss damping device provided by the invention has the technical effects that: through the arrangement of the shear frame, the damping springs and the mutual coordination between the shear frame and the damping springs, the truss is damped in a large range, the truss is prevented from violent vibration, the truss can be kept unfixed in any environment, and the practicability of the truss is improved; the damping device is arranged to assist the shear frame to damp the truss, so that the safety of the truss is improved; through setting up buffer for shock among the isolated truss, alleviate the transmission of truss-like support vibrations, avoid the vibrations of whole truss.
Based on the technical scheme, the truss damping device can be further improved as follows:
the shearing frame comprises an upper plate and a lower plate, and two ends of the upper plate and the lower plate are fixedly connected through an I-shaped plate; corresponding fixing grooves are formed in the upper plate and the lower plate, a plurality of damping blocks are fixedly arranged on two sides, close to each other, of the upper plate and the lower plate respectively, the damping blocks correspond to the fixing grooves, the damping blocks corresponding to the upper plate and the lower plate are fixedly connected through damping springs, and the damping springs are used for unloading the vibration force of the truss; a connecting lug is arranged on one side, close to the truss, of the I-shaped plate, and the connecting lug is used for fixing the shear frame on the truss;
the damping device comprises a damping cylinder, a piston mechanism and a control mechanism, wherein the damping cylinder is two layers and comprises an inner cylinder and an outer cylinder, the outer cylinder is sleeved in the inner cylinder, and the piston mechanism and the control mechanism are arranged in the outer cylinder and are movably connected with the inner wall of the outer cylinder; the piston mechanism is fixedly connected with the upper plate, and the control mechanism is fixedly connected with the lower plate.
Limiting plates are fixedly arranged on the outer walls of the upper plate and the lower plate, springs are arranged between the limiting plates, one ends of the springs are fixedly connected with the limiting plates on the outer wall of the upper plate, and the other ends of the springs are fixedly connected with the limiting plates on the outer wall of the lower plate.
Further, the piston mechanism comprises an upper connecting piece, a first fixed block, a second fixed block and a third fixed block, wherein the first fixed block, the second fixed block and the third fixed block are sequentially fixed on the side wall of the upper connecting piece and fixedly connected with the upper connecting piece; the first fixing block is fixedly connected with the second fixing block and the second fixing block is fixedly connected with the third fixing block, a mounting circular ring is fixed on the outer side wall of the second fixing block, a first clamping ring is abutted to the top of the second fixing block, a first spring is arranged between the first clamping ring and the first fixing block, one end of the first spring is fixedly connected with the bottom of the first fixing block, and the other end of the first spring is fixedly connected with the top of the first clamping ring; the upper connecting piece extension department be fixed with the joint dish on the outer wall of one side of third fixed block, the bottom butt of joint dish has the movable block, the bottom of movable block is provided with the stationary blade, the stationary blade with the lateral wall fixed connection of upper connecting piece, the stationary blade with be provided with the second spring between the movable block, the one end of second spring with the bottom fixed connection of urceolus, the other end of second spring with the top fixed connection of stationary blade.
The top of the upper connecting piece is provided with a circular ring which is used for fixing the piston mechanism and the upper plate.
Further, an interlayer cylinder is arranged in the inner cylinder, the control mechanism comprises a lower connecting piece, an interlayer cylinder and a fixed disc, the lower connecting piece is fixedly connected with the bottom of the inner cylinder, the interlayer cylinder is arranged on the inner wall of the interlayer cylinder, and the fixed disc is arranged at the top of the interlayer cylinder; the top of the fixed disc is sequentially provided with a second clamping ring, a first telescopic rod and a first limiting piece, the second clamping ring is fixedly connected with the fixed disc, the second clamping ring is fixedly connected with the first telescopic rod, the first telescopic rod is fixedly connected with the first limiting piece, and a second spring is sleeved on the first telescopic rod;
the interlayer cylinder and the fixed disc are sequentially provided with a third clamping ring, a second telescopic rod and a second limiting piece, the third clamping ring is fixedly connected with the fixed disc, the second limiting piece is fixedly connected with the interlayer cylinder, the second telescopic rod is fixed between the third clamping ring and the second limiting piece, and a third spring is sleeved on the second telescopic rod.
The bottom of the lower connecting piece is provided with a circular ring which is used for fixing the control mechanism with the lower plate.
The buffer device is a spring mechanism and is used for buffering the trusses which are connected with the cross; the spring mechanism comprises a sliding block and a tension spring, wherein the number of the sliding blocks is 4, and the sliding blocks are fixedly connected through the tension spring; the top of slider and last layer truss fossil fragments fixed connection, the bottom and the next floor truss fossil fragments fixed connection of extension spring, the slider is used for being connected between the truss.
The beneficial effects of adopting above-mentioned improvement scheme are: the outer tube is used for connecting the trusses fixed in a crisscross manner, so that the trusses are convenient to fix; by arranging the auxiliary cylinder, the transmission of vibration among trusses is reduced, and the truss is prevented from continuous vibration.
The damping device is a tensioning mechanism, and the tensioning mechanism is used for fixing connection between the single truss keels; the tensioning mechanism comprises a fixing plate, a fixing seat and a tensioning spring, wherein the fixing plate is fixed on one side of one truss, the fixing seat is fixed on the fixing plate, one end of the tensioning spring is fixedly connected with the fixing seat through a hinge mechanism, and the other end of the tensioning spring is connected to the trusses which are mutually fixed through a telescopic mechanism.
Further, the hinge shaft mechanism comprises a mandrel and a base, two ends of the mandrel are respectively inserted into connecting holes formed in two side walls of the base, a groove matched with the fixing seat is formed in the mandrel, and one end of the fixing seat is connected into the groove of the mandrel; the base is fixedly connected with the fixing seat.
Further, the telescopic mechanism comprises a hinge shaft mechanism, a mandrel is fixed at one end of a base of the hinge shaft mechanism, and the mandrel is connected with the end part of the tensioning spring; the other end of the base is fixed with a tensioning pull rod, the tensioning pull rod penetrates through the side wall of the tensioning pull rod fixing plate and is in sliding connection with the tensioning pull rod fixing plate, and the tensioning pull rod fixing plate is fixed on the adjacent truss; and a limit nut is sleeved at one end of the tensioning pull rod, which penetrates out of the tensioning pull rod fixing plate.
The damping device is arranged between the top truss and the swing truss; the damping device comprises an outer tube, an auxiliary cylinder, an inner tube, a baffle, a permanent magnet ring, a magnetic conduction ring and a magnetism isolating ring, wherein the outer tube is fixed on the top truss, the auxiliary cylinder is arranged at two ends of the outer tube, a closed cavity is arranged in the middle of the outer tube, the closed cavity consists of the baffle and the inner tube, and magnetorheological fluid is filled in the closed cavity; the baffle plates are fixedly arranged right above the auxiliary cylinders, and the inner tube is fixed between the baffle plates; the inner tube comprises an inner tube upper end plate, an inner tube baffle and an inner tube lower end plate, and the inner tube upper end plate, the inner tube baffle and the inner tube lower end plate are sleeved on the inner tube in sequence; the inner pipe penetrates through the baffle plate and is arranged in the auxiliary cylinder, and an auxiliary cylinder disc spring is arranged at the bottom of the inner pipe lower end plate; openings are formed in the top of the outer tube and the side wall of the auxiliary cylinder, the diameters of the inner tube upper end plate and the inner tube lower end plate are smaller than or equal to the diameters of the openings, and the diameter of the inner tube baffle is larger than the diameter of the openings; a disc spring is arranged between the inner pipe baffle and the baffle; the inner tube is also fixedly provided with a piston, the piston is composed of a permanent magnet ring in the middle and magnetic conducting rings on two sides, and the magnetic isolation rings are arranged on the periphery of the permanent magnet ring and between the magnetic conducting rings on two sides.
The inner tube is provided with a groove, and the width of a gap between the piston and the inner tube is changed; inner pipe baffles are sleeved on two sides of the piston to prevent relative movement between the piston and the inner pipe; the permanent magnet ring is made of permanent magnets; the rheological fluid is used as an intelligent material, and can be converted into a Bingham viscoplastic body with high viscosity and low fluidity from Newtonian fluid with good fluidity in millisecond time, and the self-resetting magnetorheological damper prepared has the advantages of large output, low energy consumption, quick response and the like; the disc spring has excellent elasticity, is basically not affected by temperature compared with the shape memory alloy, and can realize self-resetting without heating after deformation; compared with the prestressed tendons, the prestressed tendons have larger elastic deformation, and can meet the requirements of large-deformation structures; the shear yield strength generated by solidification of the magnetorheological fluid under the action of a magnetic field is in direct proportion to the magnetic field strength, and the magnetic field strength is in inverse proportion to the width of the damping channel, so that the width of the damping channel is changed, the shear yield strength generated by solidification of the magnetorheological fluid under the action of the magnetic field can be adjusted, the damping of the magnetorheological fluid in the sealing cavity is continuously variable, the larger the displacement is, the larger the damping force needed to be overcome by the piston in the sealing cavity for extruding the 'solidified' magnetorheological fluid in the damping channel is, the more energy consumption is, the continuously variable damping force can be provided, and external power supply is not needed; through setting up outer tube, auxiliary cylinder, inner tube, baffle, permanent magnet ring, magnetic conduction ring and separating the magnetic ring, the protection upper plate and fix the roof on the upper plate, consume the energy of removal, prevent upper plate and roof to take place the displacement, the stable performance does not rely on external energy, effective control residual deformation, simple structure, it is reliable and stable.
Further, the top truss is connected with the swing truss through a reset rib, a through hole is formed in the middle of the top truss and the swing truss, a positioning rib is arranged in the through hole, one end of the positioning rib is fixedly connected with the top of the damping device, and the other end of the positioning rib is fixedly connected with the bottom of the swing truss.
Compared with the prior art, the truss damping device provided by the invention has the beneficial effects that: through the arrangement of the shear frame, the damping springs and the mutual coordination between the shear frame and the damping springs, the truss is damped in a large range, the truss is prevented from violent vibration, the truss can be kept unfixed in any environment, and the practicability of the truss is improved; the damping device is arranged to assist the shear frame to damp the truss, so that the safety of the truss is improved; through setting up buffer for shock between isolated truss, alleviate the transmission of truss-like support shock, avoid the shock of whole truss, can solve current truss damper and can not adjust according to the difference of truss hookup location, make shock attenuation effect unobvious between the truss, the security of truss is difficult to the problem of assurance.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a truss shock absorber;
FIG. 2 is a schematic view of a shock absorbing device;
FIG. 3 is a schematic view of the internal structure of the shock absorbing device;
FIG. 4 is a schematic structural view of a damping device;
FIG. 5 is a schematic structural view of a tensioning mechanism;
FIG. 6 is a schematic structural view of a spring mechanism;
in the drawings, the list of components represented by the various numbers is as follows:
10. a shear frame; 11. an upper plate; 12. a lower plate; 13. an I-shaped plate; 14. a damper block; 15. a connecting lug; 20. a damping spring; 30. a damping device; 31. a shock absorbing cylinder; 311. an inner cylinder; 312. an outer cylinder; 32. a piston mechanism; 321. an upper connecting piece; 3211. a clamping disc; 3212. a movable block; 3213. a fixing piece; 3214. a second spring; 322. a first fixed block; 323. a second fixed block; 3231. installing a circular ring; 3232. a first clamping ring; 3233. a first spring; 324. a third fixed block; 33. a control mechanism; 331. a lower connecting piece; 332. an interlayer cylinder; 3321. a third clamping ring; 3322. a second telescopic rod; 3323. the second limiting piece; 3324. a third spring; 333. a fixed plate; 3331. a second clamping ring; 3332. a first telescopic rod; 3333. a first limiting piece; 3335. a second spring; 40. damping means; 41. an outer tube; 42. an auxiliary cylinder; 43. an inner tube; 431. an inner tube upper end plate; 432. an inner tube baffle; 433. a lower end plate of the inner tube; 44. a baffle; 45. a permanent magnet ring; 46. a magnetic conductive ring; 47. a magnetism isolating ring; 50. a tensioning mechanism; 51. a fixing plate; 52. a fixing seat; 53. tensioning a spring; 54. tensioning a pull rod fixing plate; 55. tensioning the pull rod; 56. a limit nut; 57. a mandrel; 58. a base; 60. a spring mechanism; 61. a slide block; 62. and a tension spring.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
As shown in fig. 1 to 6, in a first embodiment of a truss damping device provided by the present invention, in this embodiment, the truss damping device is provided with a shear frame 10, damping springs 20 and damping devices 30, the shear frame 10 is disposed at a middle position of a truss, two sides of the shear frame 10 are fixedly connected with adjacent trusses through screws, the damping springs 20 are disposed inside the shear frame 10, the shear frame 10 and the damping springs 20 are used for damping the truss in a large range, so as to prevent the truss from violent vibration; the damping device 30 is arranged in the shear frame 10 and spaced from the damping spring 20, and the damping device 30 is used for further damping the vibration of the shear frame 10, so that the safety of the truss is improved;
the damping device further comprises a damping device, wherein the damping device is arranged between adjacent trusses and is used for reducing transmission of vibration between the trusses.
When the device is used, the shear frame 10 is fixed between adjacent trusses, a plurality of damping springs 20 and damping devices 30 are arranged and are respectively fixed in the shear frame 10 at intervals, and the device is used for performing range damping on the connection between the trusses; the buffer device is fixed at a designated position of truss connection to isolate transmission of vibration between trusses.
In the above technical solution, the shear frame 10 includes an upper plate 11 and a lower plate 12, and two ends of the upper plate 11 and the lower plate 12 are fixedly connected through an i-plate 13; corresponding fixing grooves are formed in the upper plate 11 and the lower plate 12, a plurality of damping blocks 14 are fixedly arranged on two sides, close to each other, of the upper plate 11 and the lower plate 12 respectively, the damping blocks 14 correspond to the fixing grooves, the damping blocks 14 corresponding to the upper plate and the lower plate are fixedly connected through damping springs 20, and the damping springs 20 are used for unloading the vibration force of the truss; the I-shaped plate 13 is provided with a connecting lug 15 at one side close to the truss, and the connecting lug 15 is used for fixing the shear frame 10 on the truss;
the damping device 30 comprises a damping cylinder 31, a piston mechanism 32 and a control mechanism 33, wherein the damping cylinder 31 is two layers and comprises an inner cylinder 311 and an outer cylinder 312, the outer cylinder 312 is sleeved in the inner cylinder 311, and the piston mechanism 32 and the control mechanism 33 are arranged in the outer cylinder 312 and are movably connected with the inner wall of the outer cylinder 312; the piston mechanism 32 is fixedly connected with the upper plate 11, and the control mechanism 33 is fixedly connected with the lower plate 12.
Limiting plates are fixedly arranged on the outer walls of the upper plate 11 and the lower plate 12, a spring is arranged between the two limiting plates, one end of the spring is fixedly connected with the limiting plate on the outer wall of the upper plate 11, and the other end of the spring is fixedly connected with the limiting plate on the outer wall of the lower plate 12.
Further, in the above technical solution, the piston mechanism 32 includes an upper connecting member 321, a first fixing block 322, a second fixing block 323, and a third fixing block 324, where the first fixing block 322, the second fixing block 323, and the third fixing block 324 are sequentially fixed on a side wall of the upper connecting member 321 and fixedly connected with the upper connecting member 321; the first fixing block 322 is fixedly connected with the second fixing block 323 and the second fixing block 323 is fixedly connected with the third fixing block 324, a mounting circular ring 3231 is fixed on the outer side wall of the second fixing block 323, the top of the second fixing block 323 is abutted to a first clamping ring 3232, a first spring 3233 is arranged between the first clamping ring 3232 and the first fixing block 322, one end of the first spring 3233 is fixedly connected with the bottom of the first fixing block 322, and the other end of the first spring 3233 is fixedly connected with the top of the first clamping ring 3232; the outer wall of one side of the third fixed block 324 at the extension part of the upper connecting piece 321 is fixedly provided with a clamping disc 3211, the bottom of the clamping disc 3211 is abutted to a movable block 3212, the bottom of the movable block 3212 is provided with a fixing piece 3213, the fixing piece 3213 is fixedly connected with the side wall of the upper connecting piece 321, a second spring 3214 is arranged between the fixing piece 3213 and the movable block 3212, one end of the second spring 3214 is fixedly connected with the bottom of the outer cylinder 312, and the other end of the second spring 3214 is fixedly connected with the top of the fixing piece 3213.
The top of the upper connector 321 is provided with a ring for fixing the piston mechanism 32 to the upper plate 11.
Further, in the above technical solution, the inner cylinder 311 is provided with an interlayer cylinder inside, the control mechanism 33 includes a lower connector 331, an interlayer cylinder 332 and a fixing plate 333, the lower connector 331 is fixedly connected with the bottom of the inner cylinder 311, the interlayer cylinder 332 is disposed on the inner wall of the interlayer cylinder, and the fixing plate 333 is disposed on the top of the interlayer cylinder 332; the top of the fixed disc 333 is sequentially provided with a second clamping ring 3331, a first telescopic rod 3332 and a first limiting piece 3333, the second clamping ring 3331 is fixedly connected with the fixed disc 333, the second clamping ring 3331 is fixedly connected with the first telescopic rod 3332, the first telescopic rod 3332 is fixedly connected with the first limiting piece 3333, and a second spring 3335 is sleeved on the first telescopic rod 3332;
a third clamping ring 3321, a second telescopic rod 3322 and a second limiting piece 3323 are sequentially arranged between the interlayer cylinder 332 and the fixed disc 333, the third clamping ring 3321 is fixedly connected with the fixed disc 333, the second limiting piece 3323 is fixedly connected with the interlayer cylinder 332, the second telescopic rod 3322 is fixed between the third clamping ring 3321 and the second limiting piece 3323, and a third spring 3324 is sleeved on the second telescopic rod 3322.
The bottom of the lower connector 331 is provided with a ring for fixing the control mechanism 33 to the lower plate 12.
In the above technical solution, the buffer device is a spring mechanism 60, and the spring mechanism 60 is used for buffering between trusses connected with the cross; the spring mechanism 60 comprises a sliding block 61 and a tension spring 62, wherein the number of the sliding blocks 61 is 4, and the sliding blocks 61 are fixedly connected through the tension spring 62; the top of slider 61 and last layer truss fossil fragments fixed connection, the bottom and the next floor truss fossil fragments fixed connection of extension spring 62, slider 61 are used for the connection between the truss.
In the above technical solution, the buffer device is a tensioning mechanism 50, and the tensioning mechanism 50 is used for fixing the connection between the single truss keels; the tensioning mechanism 50 comprises a fixing plate 51, a fixing seat 52 and a tensioning spring 53, wherein the fixing plate 51 is fixed on one side of one truss, the fixing seat 52 is fixed on the fixing plate 51, one end of the tensioning spring 53 is fixedly connected with the fixing seat 52 through a hinge mechanism, and the other end of the tensioning spring 53 is connected to the trusses which are mutually fixed through a telescopic mechanism.
Further, in the above technical solution, the hinge shaft mechanism includes a mandrel 57 and a base 58, two ends of the mandrel 57 are respectively inserted into connection holes provided on two side walls of the base 58, a groove adapted to the fixing seat 52 is provided on the mandrel 57, and one end of the fixing seat 52 is connected in the groove of the mandrel 57; the base 58 is fixedly connected with the fixed base 52.
Further, in the above technical solution, the telescopic mechanism includes a hinge shaft mechanism, one end of a base 58 of the hinge shaft mechanism is fixed with a mandrel 57, and the mandrel 57 is connected with an end of the tensioning spring 53; the other end of the base 58 is fixed with a tensioning pull rod 55, the tensioning pull rod 55 passes through the side wall of the tensioning pull rod fixing plate 54 and is in sliding connection with the tensioning pull rod fixing plate 54, and the tensioning pull rod fixing plate 54 is fixed on the adjacent truss; one end of the tensioning pull rod 55 penetrating out of the tensioning pull rod fixing plate 54 is sleeved with a limit nut 56.
In the above technical solution, the damping device is a damping device 40, and the damping device 40 is disposed between the top truss and the swing truss; the damping device 40 comprises an outer tube 41, an auxiliary cylinder 42, an inner tube 43, a baffle 44, a permanent magnet ring 45, a magnetic conduction ring 46 and a magnetism isolating ring 47, wherein the outer tube 41 is fixed on a top truss, the auxiliary cylinder 42 is arranged at two ends of the outer tube 41, a closed cavity is arranged in the middle of the outer tube 41, the closed cavity consists of the baffle 44 and the inner tube 43, and magnetorheological fluid is filled in the closed cavity; a baffle 44 is fixedly arranged right above the auxiliary cylinder 42, and the inner tube 43 is fixed between the baffles 44; the inner tube 43 comprises an inner tube upper end plate 431, an inner tube baffle 432 and an inner tube lower end plate 433, and the inner tube upper end plate 431, the inner tube baffle 432 and the inner tube lower end plate 433 are sleeved on the inner tube 43 in sequence; the inner tube 43 passes through the baffle 44 and is provided with an inner tube lower end plate 433 in the auxiliary cylinder 42, and the bottom of the inner tube lower end plate 433 is provided with an auxiliary cylinder disc spring; openings are formed in the top of the outer tube 41 and the side wall of the auxiliary cylinder 42, the diameters of the inner tube upper end plate 431 and the inner tube lower end plate 433 are smaller than or equal to the diameters of the openings, and the diameter of the inner tube baffle 432 is larger than the diameter of the openings; a disc spring is also arranged between the inner tube baffle 432 and the baffle 44; the inner tube 43 is also fixedly provided with a piston which is composed of a middle permanent magnet ring 45 and magnetic conducting rings 46 at two sides, and a magnetism isolating ring 47 is arranged between the outer periphery of the permanent magnet ring 45 and the magnetic conducting rings 46 at two sides.
The inner tube 43 is provided with a groove, and the width of the gap between the piston and the inner tube 43 is changed; inner tube baffles 432 are sleeved on two sides of the piston to prevent relative movement between the piston and the inner tube 43; the permanent magnet ring 45 is made of permanent magnets; the rheological fluid is used as an intelligent material, and can be converted into a Bingham viscoplastic body with high viscosity and low fluidity from Newtonian fluid with good fluidity in millisecond time, and the self-resetting magnetorheological damper prepared has the advantages of large output, low energy consumption, quick response and the like; the disc spring has excellent elasticity, is basically not affected by temperature compared with the shape memory alloy, and can realize self-resetting without heating after deformation; compared with the prestressed tendons, the prestressed tendons have larger elastic deformation, and can meet the requirements of large-deformation structures; the shear yield strength generated by solidification of the magnetorheological fluid under the action of a magnetic field is in direct proportion to the magnetic field strength, and the magnetic field strength is in inverse proportion to the width of the damping channel, so that the width of the damping channel is changed, the shear yield strength generated by solidification of the magnetorheological fluid under the action of the magnetic field can be adjusted, the damping of the magnetorheological fluid in the sealing cavity is continuously variable, the larger the displacement is, the larger the damping force needed to be overcome by the piston in the sealing cavity for extruding the 'solidified' magnetorheological fluid in the damping channel is, the more energy consumption is, the continuously variable damping force can be provided, and external power supply is not needed; through setting up outer tube 41, auxiliary cylinder 42, inner tube 43, baffle 44, permanent magnetism ring 45, magnetic conduction ring 46 and magnetism isolating ring 47, protection upper plate 11 and the roof of fixing on upper plate 11 consume the energy of removal, prevent upper plate 11 and roof to take place the displacement, the stable performance does not rely on external energy, effective control residual deformation, simple structure, reliable and stable.
Further, in the above technical scheme, the top truss is connected with the swing truss through the reset rib, the through hole is formed in the middle of the top truss and the swing truss, the positioning rib is arranged in the through hole, one end of the positioning rib is fixedly connected with the top of the damping device 40, and the other end of the positioning rib is fixedly connected with the bottom of the swing truss.
Specifically, the principle of the invention is as follows: the shear frame 10 is fixed between adjacent trusses, a plurality of damping springs 20 and damping devices 30 are arranged, and the damping springs are respectively fixed in the shear frame 10 at intervals and used for performing range damping on the connection between the trusses; the buffer device is fixed at a designated position of truss connection to isolate transmission of vibration between trusses
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (10)
1. The truss damping device is characterized by comprising a shear frame (10), damping springs (20) and damping devices (30), wherein the shear frame (10) is arranged in the middle of a truss, two sides of the shear frame (10) are fixedly connected with adjacent trusses through screws, the damping springs (20) are arranged in the shear frame (10), and the shear frame (10) and the damping springs (20) are used for damping the trusses in a large range to prevent the trusses from violent vibration; the damping device (30) is arranged in the shear frame (10) and spaced from the damping spring (20), and the damping device (30) is used for further damping the shear frame (10) to be a truss, so that the safety of the truss is improved;
the damping device further comprises a damping device, wherein the damping device is arranged between adjacent trusses and is used for reducing transmission of vibration between the trusses.
2. The truss shock absorbing device according to claim 1, wherein the shear frame (10) comprises an upper plate (11) and a lower plate (12), and two ends of the upper plate (11) and the lower plate (12) are fixedly connected through an i-plate (13); corresponding fixing grooves are formed in the upper plate (11) and the lower plate (12), a plurality of shock absorption blocks (14) are fixedly arranged on two sides, close to each other, of the upper plate (11) and the lower plate (12), the shock absorption blocks (14) correspond to the fixing grooves, the shock absorption blocks (14) corresponding to each other up and down are fixedly connected through shock absorption springs (20), and the shock absorption springs (20) are used for unloading truss vibration force; a connecting lug (15) is arranged on one side, close to the truss, of the I-shaped plate (13), and the connecting lug (15) is used for fixing the shear frame (10) on the truss;
the damping device (30) comprises a damping cylinder (31), a piston mechanism (32) and a control mechanism (33), wherein the damping cylinder (31) is two layers and comprises an inner cylinder (311) and an outer cylinder (312), the outer cylinder (312) is sleeved in the inner cylinder (311), and the piston mechanism (32) and the control mechanism (33) are arranged in the outer cylinder (312) and are movably connected with the inner wall of the outer cylinder (312); the piston mechanism (32) is fixedly connected with the upper plate (11), and the control mechanism (33) is fixedly connected with the lower plate (12).
3. The truss shock absorbing device according to claim 2, wherein the piston mechanism (32) comprises an upper connecting member (321), a first fixing block (322), a second fixing block (323) and a third fixing block (324), and the first fixing block (322), the second fixing block (323) and the third fixing block (324) are sequentially fixed on the side wall of the upper connecting member (321) and fixedly connected with the upper connecting member (321); the first fixing block (322) is fixedly connected with the second fixing block (323) and the second fixing block (323) is fixedly connected with the third fixing block (324), a mounting circular ring (3231) is fixed on the outer side wall of the second fixing block (323), a first clamping ring (3232) is abutted to the top of the second fixing block (323), a first spring (3233) is arranged between the first clamping ring (3232) and the first fixing block (322), one end of the first spring (3233) is fixedly connected with the bottom of the first fixing block (322), and the other end of the first spring (3233) is fixedly connected with the top of the first clamping ring (3232); go up connecting piece (321) extension department be fixed with joint dish (3211) on the outer wall of one side of third fixed block (324), the bottom butt of joint dish (3211) has movable block (3212), the bottom of movable block (3212) is provided with stationary blade (3213), stationary blade (3213) with go up the lateral wall fixed connection of connecting piece (321), stationary blade (3213) with be provided with second spring (3214) between movable block (3212), the one end of second spring (3214) with the bottom fixed connection of urceolus (312), the other end of second spring (3214) with the top fixed connection of stationary blade (3213).
4. A truss shock absorbing device according to claim 3, wherein the inner cylinder (311) is internally provided with an interlayer cylinder, the control mechanism (33) comprises a lower connecting piece (331), an interlayer cylinder (332) and a fixed disc (333), the lower connecting piece (331) is fixedly connected with the bottom of the inner cylinder (311), the interlayer cylinder (332) is arranged on the inner wall of the interlayer cylinder, and the fixed disc (333) is arranged on the top of the interlayer cylinder (332); the top of the fixed disc (333) is sequentially provided with a second clamping ring (3331), a first telescopic rod (3332) and a first limiting piece (3333), the second clamping ring (3331) is fixedly connected with the fixed disc (333), the second clamping ring (3331) is fixedly connected with the first telescopic rod (3332), the first telescopic rod (3332) is fixedly connected with the first limiting piece (3333), and a second spring (3335) is sleeved on the first telescopic rod (3332);
the novel telescopic clamping device is characterized in that a third clamping ring (3321), a second telescopic rod (3322) and a second limiting piece (3323) are sequentially arranged between the interlayer cylinder (332) and the fixed disc (333), the third clamping ring (3321) is fixedly connected with the fixed disc (333), the second limiting piece (3323) is fixedly connected with the interlayer cylinder (332), the second telescopic rod (3322) is fixed between the third clamping ring (3321) and the second limiting piece (3323), and a third spring (3324) is sleeved on the second telescopic rod (3322).
5. A truss shock absorbing device according to claim 1, characterized in that the damping device is a spring mechanism (60), the spring mechanism (60) being adapted to damp between cross-connected trusses; the spring mechanism (60) comprises a sliding block (61) and a tension spring (62), wherein the number of the sliding blocks (61) is 4, and the sliding blocks (61) are fixedly connected through the tension spring (62); the top of slider (61) and last layer truss fossil fragments fixed connection, the bottom and the next floor truss fossil fragments fixed connection of extension spring (62), slider (61) are used for being connected between the truss.
6. A truss shock absorbing device according to claim 1, wherein the dampening device is a tensioning mechanism (50), the tensioning mechanism (50) being adapted to secure the connection between the individual truss keels; the tensioning mechanism (50) comprises a fixing plate (51), a fixing seat (52) and a tensioning spring (53), wherein the fixing plate (51) is fixed on one side of one truss, the fixing seat (52) is fixed on the fixing plate (51), one end of the tensioning spring (53) is fixedly connected with the fixing seat (52) through a hinge mechanism, and the other end of the tensioning spring (53) is connected onto the trusses which are mutually fixed through a telescopic mechanism.
7. The truss shock absorbing device according to claim 6, wherein the hinge shaft mechanism comprises a mandrel (57) and a base (58), two ends of the mandrel (57) are respectively inserted into connecting holes formed in two side walls of the base (58), grooves matched with the fixing seats (52) are formed in the mandrel (57), and one end of the fixing seat (52) is connected into the grooves of the mandrel (57); the base (58) is fixedly connected with the fixing seat (52).
8. The truss shock absorbing device according to claim 7, wherein the telescopic mechanism comprises a hinge shaft mechanism, a mandrel (57) is fixed at one end of a base (58) of the hinge shaft mechanism, and the mandrel (57) is connected with the end of the tensioning spring (53); the other end of the base (58) is fixedly provided with a tensioning pull rod (55), the tensioning pull rod (55) penetrates through the side wall of the tensioning pull rod fixing plate (54) and is in sliding connection with the tensioning pull rod fixing plate (54), and the tensioning pull rod fixing plate (54) is fixed on the adjacent truss; one end of the tensioning pull rod (55) penetrating out of the tensioning pull rod fixing plate (54) is sleeved with a limit nut (56).
9. The truss shock absorbing device according to claim 1, wherein the damping device is a damping device (40), the damping device (40) being arranged between the top truss and the swing truss; the damping device (40) comprises an outer tube (41), auxiliary cylinders (42), an inner tube (43), a baffle plate (44), a permanent magnet ring (45), a magnetic conduction ring (46) and a magnetism isolating ring (47), wherein the outer tube (41) is fixed on the top truss, the auxiliary cylinders (42) are arranged at two ends of the outer tube (41), a closed cavity is arranged in the middle of the outer tube, the closed cavity is formed by the baffle plate (44) and the inner tube (43), and magnetorheological fluid is filled in the closed cavity; the baffle plates (44) are fixedly arranged right above the auxiliary cylinders (42), and the inner tubes (43) are fixed between the baffle plates (44); the inner tube (43) comprises an inner tube upper end plate (431), an inner tube baffle (432) and an inner tube lower end plate (433), and the inner tube upper end plate (431), the inner tube baffle (432) and the inner tube lower end plate (433) are sequentially sleeved on the inner tube (43); the inner pipe (43) passes through the baffle (44) and is arranged in the auxiliary cylinder (42) by the inner pipe lower end plate (433), and an auxiliary cylinder disc spring is arranged at the bottom of the inner pipe lower end plate (433); openings are formed in the top of the outer tube (41) and the side wall of the auxiliary cylinder (42), the diameters of the inner tube upper end plate (431) and the inner tube lower end plate (433) are smaller than or equal to the diameter of the opening, and the diameter of the inner tube baffle (432) is larger than the diameter of the opening; a disc spring is further arranged between the inner pipe baffle (432) and the baffle (44); the inner tube (43) is also fixedly provided with a piston, the piston is composed of a permanent magnet ring (45) in the middle and magnetic conducting rings (46) on two sides, and the magnetic isolation rings (47) are arranged on the periphery of the permanent magnet ring (45) and between the magnetic conducting rings (46) on two sides.
10. The truss damping device according to claim 9, wherein the top truss is connected with the swing truss through a reset rib, a through hole is formed between the top truss and the swing truss, the positioning rib is arranged in the through hole, one end of the positioning rib is fixedly connected with the top of the damping device (40), and the other end of the positioning rib is fixedly connected with the bottom of the swing truss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310458713.1A CN116464181A (en) | 2023-04-26 | 2023-04-26 | Truss damping device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310458713.1A CN116464181A (en) | 2023-04-26 | 2023-04-26 | Truss damping device |
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| CN116464181A true CN116464181A (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310458713.1A Pending CN116464181A (en) | 2023-04-26 | 2023-04-26 | Truss damping device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116815947A (en) * | 2023-08-31 | 2023-09-29 | 北京工业大学 | Passive reset rigidity energy dissipation arm extension system of high-rise building structure |
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- 2023-04-26 CN CN202310458713.1A patent/CN116464181A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116815947A (en) * | 2023-08-31 | 2023-09-29 | 北京工业大学 | Passive reset rigidity energy dissipation arm extension system of high-rise building structure |
| CN116815947B (en) * | 2023-08-31 | 2023-10-31 | 北京工业大学 | Passive reset rigidity energy dissipation arm extension system of high-rise building structure |
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