CN117386037A - Energy consumption rod and modularized multistage adjustable shearing damper - Google Patents
Energy consumption rod and modularized multistage adjustable shearing damper Download PDFInfo
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- CN117386037A CN117386037A CN202311341460.6A CN202311341460A CN117386037A CN 117386037 A CN117386037 A CN 117386037A CN 202311341460 A CN202311341460 A CN 202311341460A CN 117386037 A CN117386037 A CN 117386037A
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- 238000005265 energy consumption Methods 0.000 title claims abstract description 77
- 238000010008 shearing Methods 0.000 title description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims description 59
- 230000000452 restraining effect Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 8
- 239000002861 polymer material Substances 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 238000007906 compression Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000006835 compression Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 239000002436 steel type Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 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
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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
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/0237—Structural braces with damping devices
Abstract
The invention relates to an energy consumption rod and a modularized multistage adjustable shear damper, wherein the energy consumption rod comprises a constraint sleeve, an energy consumption inner core, a connecting sleeve and a constraint spring, the energy consumption inner core penetrates through the constraint sleeve and comprises 2 connecting sections, a yielding section and an elastic section which are sequentially connected with each other along the axis direction, the connecting sections and the yielding section are positioned in the constraint sleeve, and part of the elastic section is positioned in the constraint sleeve; the elastic section comprises an external thread section, and the external thread section is arranged at two ends of the elastic section; the connecting sleeve is fixedly connected with the constraint sleeve, and two ends of the connecting sleeve are respectively fixedly connected with the connecting section; the constraint springs are 2 and are respectively sleeved on the yield sections. Compared with the grouting energy consumption rod in the prior art, the energy consumption rod provided by the invention has the advantages of simple structure and easiness in assembly; compared with the all-steel energy consumption lever in the prior art, the constraint spring provides sufficient constraint for the yield section of the energy consumption core, so that the yield section is fully deformed and consumes energy, and the stability, buckling energy consumption capacity and bearing capacity of the energy consumption core are improved.
Description
Technical Field
The invention relates to the field of damping structures, in particular to an energy consumption rod and a modularized multistage adjustable shear damper.
Background
China is one of the few countries with the most serious natural disasters in the world. Among them, earthquake disasters are especially serious in casualties and economic losses caused to society. The earthquake energy transmitted to the building can be effectively reduced by the earthquake reduction and isolation technology, and the earthquake energy is superior to the direct resistance of the traditional earthquake resistance. Energy dissipation and shock absorption are a common method for reducing and isolating shock, and the effect of the method mainly depends on the type and the performance of the energy absorber. Currently mainstream energy dissipation damper products include viscous dampers, viscoelastic dampers, metal dampers, friction dampers, composite dampers, buckling restrained braces and the like.
The metal damper dissipates energy by utilizing elastoplastic hysteresis deformation generated when the metal element yields, and has been widely used in recent years due to its excellent energy consumption capability. The metal damper enters a yield state under small earthquake, dissipates earthquake energy, provides additional damping ratio for the whole structure, and can provide certain lateral stiffness resistance at the same time, so that horizontal lateral displacement is further reduced. Shear type dampers and dissipative bars are one of the most commonly used metal dampers.
In the prior art, the grouting type energy consumption rod mainly comprises a grouting type energy consumption rod and an all-steel type energy consumption rod, wherein the grouting type energy consumption rod comprises a constraint sleeve, an energy consumption inner core and a filling material, the energy consumption inner core penetrates through the constraint sleeve, and the filling material is filled between the outer circumferential surface of the energy consumption inner core and the inner wall surface of the constraint sleeve. The grouting energy consumption rod has the following defects: the grouting quality is not easy to control, so that the fatigue performance is reduced due to obvious local buckling of the energy consumption rod under repeated tension and compression deformation, and the defects of insufficient compression performance, limited mounting configuration and difficult grouting exist. The full steel type energy dissipation rod comprises a constraint sleeve and an energy dissipation inner core; all-steel energy dissipation rods have the following defects: insufficient constraint, insufficient compression performance, material waste and the like.
Disclosure of Invention
The invention provides an energy consumption rod which is used for solving the technical problems that the energy consumption rod is difficult to control in grouting quality, fatigue performance is reduced due to obvious local buckling of the energy consumption rod under repeated tension and compression deformation, compression performance is insufficient, installation configuration is limited and grouting is difficult in the prior art; solves the technical problems of insufficient constraint, insufficient compression performance and material waste existing in the prior art when all steel energy dissipation rods are adopted.
A first aspect of the present invention provides an energy dissipating lever comprising:
a constraining sleeve;
the energy dissipation inner core penetrates through the constraint sleeve and comprises 2 connecting sections, a yielding section and an elastic section which are connected with each other in sequence along the axis direction, wherein the connecting sections and the yielding section are positioned in the constraint sleeve, and at least part of the elastic section is positioned in the constraint sleeve; the elastic section comprises an external thread section, and the external thread section is arranged at two ends of the elastic section;
the connecting sleeve is fixedly connected with the constraint sleeve, and two ends of the connecting sleeve are respectively fixedly connected with the connecting section;
and the constraint springs are provided with 2 constraint springs and are respectively sleeved on the yielding sections.
Compared with the grouting energy consumption rod in the prior art, the energy consumption rod provided by the invention has the advantages of simple structure and easiness in assembly; on the other hand, the constraint spring provides sufficient constraint for the yield section of the energy-consuming core, so that the yield section is sufficiently deformed and consumes energy, and the stability, buckling energy-consuming capacity and bearing capacity of the energy-consuming core are improved; the modularized and standardized manufacturing production of the energy consumption rod is realized, and the cost is saved.
Further, the connecting section is provided with external threads, the connecting sleeve is provided with internal threads, and the external threads are matched with the internal threads. So set up, threaded connection is convenient for assemble.
Further, the joint of the yielding section and the connecting section is provided with a chamfer; and/or the joint of the yielding section and the elastic section is provided with a chamfer. The arrangement reduces stress concentration at the joint of the yielding section and the connecting section; stress concentration at the junction of the yield section and the connecting section is reduced.
Further, the 2 connecting sections are all in threaded connection with first nuts, one ends of the first nuts are abutted to the end portions of the connecting sleeves, and the restraining springs are arranged between the first nuts and the connecting end faces of the elastic sections and the yielding sections.
Further, a first threaded hole is formed in the circumferential surface of the constraint sleeve, a bolt is connected in the first threaded hole, and the end face of the bolt abuts against the circumferential surface of the connection sleeve so as to limit the relative movement of the connection sleeve and the constraint sleeve along the axial direction.
Further, a first threaded hole is formed in the circumferential surface of the constraint sleeve, and a bolt is connected in the first threaded hole; the circumference of the connecting sleeve is provided with a second threaded hole, the bolt is in threaded connection with the second threaded hole, passes through the second threaded hole and the end part of the bolt is abutted to the connecting section, and the connecting sleeve is used for limiting the relative movement of the connecting sleeve and the energy dissipation inner core along the axial direction. So arranged, the connecting sleeve is prevented from moving in the axial direction of the restraining sleeve.
The second aspect of the invention provides a modular multistage adjustable shear damper, which comprises a top plate, a bottom plate, a first connecting plate, a second connecting plate and the energy dissipation rods, wherein the first connecting plate and the second connecting plate are fixedly arranged between the top plate and the bottom plate;
the first connecting plate is fixedly arranged on the top plate, and the second connecting plate is fixedly arranged on the bottom plate; or, the second connecting plate is fixedly arranged on the top plate, and the first connecting plate is fixedly arranged on the bottom plate.
The modularized multistage adjustable shear damper provided by the invention can be provided with different numbers of energy consumption rods according to the bearing capacity, rigidity and energy consumption requirements of the damper, and the energy consumption rods are modularized, so that the damper is simple to process and manufacture and low in cost.
Further, part of the external thread sections of the energy consumption rods are respectively pre-tightly connected to two ends of the first connecting plate and the second connecting plate through second nuts; the method comprises the steps of,
the other parts of the external thread sections of the energy consumption rods are respectively connected with the two ends of the first connecting plate and the two ends of the second connecting plate through second nuts at preset gaps.
According to the modularized multi-stage adjustable shear damper provided by the invention, in the first aspect, the modularized combined energy consumption rod and the second nut are in pre-tightening connection with the two ends of the first connecting plate and the two ends of the second connecting plate by adopting part of the energy consumption rod second nut, and the other part of the energy consumption rod second nut is connected with the two ends of the first connecting plate and the two ends of the second connecting plate by preset gaps, so that the energy consumption rod generates axial tension and compression deformation, and the single-stage, double-stage or higher-stage bearing capacity and energy consumption capacity are sequentially provided in stages, namely, the multi-stage bearing capacity and the multi-stage energy consumption capacity are provided; the damper provided by the embodiment of the invention can flexibly adjust the initial rigidity, the bearing capacity and the energy consumption capacity of the damper according to different types and different levels of disasters encountered by the structure and different deformation levels generated, so as to adapt to the energy dissipation and shock absorption performance requirements of the damper in different stress stages.
Furthermore, the modularized multi-stage adjustable shear damper provided by the invention has the characteristics of modularization and standardization, can save production cost and transportation cost while providing multi-stage bearing capacity and energy consumption capability, and has higher economic benefit.
Further, the first connecting plate is a first L-shaped connecting plate, the second connecting plate is a second L-shaped connecting plate, the first L-shaped connecting plate and the second L-shaped connecting plate are complementarily arranged, and the plurality of energy consumption rods penetrate through a first end face of the first L-shaped connecting plate and a second end face of the second L-shaped connecting plate, wherein the first end face and the second end face can move relatively;
or, the number of the first connecting plates is 2, the first connecting plates are third L-shaped connecting plates, and the third L-shaped connecting plates are oppositely arranged at intervals; the second connecting plates are T-shaped connecting plates, the T-shaped connecting plates are located between the 2 third L-shaped connecting plates and are complementarily arranged with the 2 third L-shaped connecting plates, and the energy consumption rods penetrate through the first end faces of the third L-shaped connecting plates and the second end faces of the T-shaped connecting plates;
wherein the first end face and the second end face are relatively movable. So arranged, on the one hand, the movement of the first connection plate and the second connection plate in the direction perpendicular to the axial direction of the energy consumption rod and parallel to the first end face is limited; on the other hand, the rigidity of the first connection plate and the second connection plate is improved, and the deformation of the first connection plate and the second connection plate is reduced.
Further, if the first connecting plate is fixedly arranged on the top plate, the second connecting plate is fixedly arranged on the bottom plate, and the height of the second connecting plate is smaller than that of the first connecting plate; the upper surface of the bottom plate is fixedly provided with a first sliding plate, the lower surface of the first connecting plate is fixedly provided with a second sliding plate, and the upper surface of the first sliding plate is abutted with the lower surface of the second sliding plate;
or if the first connecting plate is fixedly arranged on the bottom plate, the second connecting plate is fixedly arranged on the top plate, and the height of the second connecting plate is smaller than that of the first connecting plate; the upper surface of the bottom plate is fixedly provided with a first sliding plate, the lower surface of the second connecting plate is fixedly provided with a third sliding plate, and the upper surface of the first sliding plate is abutted with the lower surface of the third sliding plate;
or if the first connecting plate is fixedly arranged on the top plate, the second connecting plate is fixedly arranged on the bottom plate, and the heights of the first connecting plate and the second connecting plate are the same; a fourth sliding plate is fixedly arranged on the lower surface of the top plate, a fifth sliding plate is fixedly arranged on the upper surface of the bottom plate, the lower surface of the fourth sliding plate is abutted with the upper surface of the second connecting plate, and the upper surface of the fifth sliding plate is abutted with the lower surface of the first connecting plate;
or if the second connecting plate is fixedly arranged on the top plate, the first connecting plate is fixedly arranged on the bottom plate, and the heights of the first connecting plate and the second connecting plate are the same; the lower surface of roof has set firmly the fourth slide, the upper surface of bottom plate has set firmly the fifth slide, the lower surface of fourth slide with the upper surface butt of first connecting plate, the upper surface butt of fifth slide with the lower surface butt of second connecting plate. The arrangement reduces the friction force between the first connecting plate and the second connecting plate and the top plate and the bottom plate when the first connecting plate and the second connecting plate relatively move along the axial direction of the energy consumption rod.
Further, the first sliding plate, the second sliding plate, the third sliding plate, the fourth sliding plate and the fifth sliding plate are made of polytetrafluoroethylene high polymer materials.
Drawings
FIG. 1 is a schematic diagram of an explosion structure of an energy dissipation rod according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an assembly structure of an energy dissipation rod according to an embodiment of the present invention;
FIG. 3 is a schematic view of a first three-dimensional structure of a modular multi-stage adjustable shear damper according to an embodiment of the present invention;
FIG. 4 is a front view of FIG. 3;
FIG. 5 is a schematic diagram of a portion of the structure shown in FIG. 3;
FIG. 6 is a schematic diagram of a portion of the structure shown in FIG. 3;
FIG. 7 is a schematic diagram of a second three-dimensional structure of a modular multi-stage adjustable shear damper according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of the explosive structure of FIG. 7;
fig. 9 is a front view of fig. 7;
FIG. 10 is a partial cross-sectional view of FIG. 9;
FIG. 11 is a schematic diagram of a portion of the structure shown in FIG. 7;
FIG. 12 is a schematic diagram of a portion of the structure of FIG. 7;
reference numerals illustrate:
10. energy consumption rods; 110. a constraining sleeve; 111. a first threaded hole; 112. a bolt; 120. an energy consuming kernel; 130. a connection section; 132. a first nut; 140. a yield section; 150. an elastic section; 151. an external thread section; 152. a second nut; 160. a connecting sleeve; 170. a restraining spring; 20. a damper; 210. a top plate; 212. a fourth slide plate; 220. a bottom plate; 221. a first slide plate; 222. a fifth slide plate; 230. a first connection plate; 231. a first L-shaped connecting plate; 232. a third L-shaped connecting plate; 240. a second connecting plate; 241. a second L-shaped connecting plate; 242. a T-shaped connecting plate; t, presetting a gap;
Detailed Description
In order that the above objects, features and advantages of the present invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings 1 to 12.
In embodiments of the present invention, the terms "inner", "outer", "upper", "lower", "top", "bottom", and the like indicate an orientation or positional relationship based on that shown in the drawings, and are merely for convenience in describing embodiments of the present invention and to simplify the description, rather than indicating or implying that the apparatus or elements being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting embodiments of the present invention.
A first aspect of an embodiment of the present invention provides an energy dissipation rod, referring to fig. 1, the energy dissipation rod 10 includes a constraint sleeve 110, an energy dissipation core 120, a connection sleeve 160 and a constraint spring 170, the energy dissipation core 120 penetrates through the constraint sleeve 110, and has 2 connection sections 130, a yielding section 140 and an elastic section 150 which are sequentially connected with each other along an axial direction, the connection section 130 and the yielding section 140 are located in the constraint sleeve 110, and a part of the elastic section 150 is located in the constraint sleeve 110; the elastic section 150 comprises an external thread section 151, and the external thread section 151 is arranged at two ends of the elastic section 150; the connecting sleeve 160 is fixedly connected to the constraint sleeve 110, and two ends of the connecting sleeve are respectively fixedly connected to the connecting section 130; the restraining springs 170 have 2 and are respectively sleeved on the yield sections 140.
It should be noted that, when the energy dissipation rod 10 is subjected to the tensile reciprocating load, it is to ensure that the yield section 140 of the energy dissipation core 120 is always kept in the constraint sleeve 110, so a portion of the elastic section 150 should be disposed in the constraint sleeve 110 to satisfy the tensile length of the yield section 140 under the limit strain condition.
It should be noted that, the remaining elastic section 150 is located outside the constraining sleeve 110, and the length of the remaining elastic section 150 located outside the constraining sleeve may be determined based on the actual use requirement and situation for connection.
The energy dissipation bar 10 is a cylindrical stepped energy dissipation bar.
The inner diameter of the restraining sleeve 110 is d, and the inner diameter of the restraining spring 170 is d 1 The restraining spring 170 has an outer diameter d 2 The outer diameter of the connecting section 130 is D 1 The yield segment 140 has an outer diameter D 2 The outer diameter of the elastic section 150 is D 3 ，d、d 1 、d 2 、D 1 、D 2 And D 3 The method meets the following conditions: d (D) 2 ≤D 1 ≤d 1 ＜d 2 ＜D 3 ＜d。
The restraining sleeve 110 is in clearance fit with the restraining spring 170, the restraining spring 170 is in clearance fit with the yield segment 140, and the restraining sleeve 110 is in clearance fit with the elastic segment 150.
It should be noted that, in the energy dissipation rod 10 provided in the embodiment of the present invention, the constraint spring 170 is sleeved on the yield section 140, and provides a multi-point buckling constraint surface for the yield section 140, so that the constraint is sufficient, the yield section 140 is fully deformed and dissipation energy, the energy dissipation core 120 is ensured not to be unstable as a whole and enter into full-section yielding, the deformability of the yield section 140 is improved, and the energy dissipation core 120 provides stable buckling energy dissipation capability and bearing capacity.
It should be noted that, the connecting sleeves 160 are respectively connected with the connecting sections 130 of the energy dissipation core 120, which is easy to assemble and simple in structure.
It should be noted that, the damper 20 may include a plurality of energy dissipation rods 10, the number of the energy dissipation rods 10 is matched based on the bearing capacity, rigidity and energy dissipation requirement of the damper 20, and the energy dissipation rods 10 do not need to be redesigned, so that the modularized and standardized manufacturing production of the energy dissipation rods 10 is realized, and the cost is saved.
Therefore, compared with the grouting type energy consumption rod 10 in the prior art, the energy consumption rod 10 provided by the embodiment of the invention has the advantages of simple structure and easiness in assembly; on the other hand, the constraint spring 170 provides sufficient constraint for the yield section 140 of the energy consuming core 120, so that the yield section 140 is fully deformed and consumes energy, and the stability, buckling energy consumption capability and bearing capacity of the energy consuming core 120 are improved; the modularized and standardized manufacturing production of the energy consumption rod 10 is realized, and the cost is saved.
The connection manner of the connection section 130 and the connection sleeve 160 is not limited, and may be welding or screw connection. Preferably, in the embodiment of the present invention, referring to fig. 1, the connection section 130 is provided with external threads, and the connection sleeve 160 is provided with internal threads, which are engaged with the external threads. So set up, threaded connection is convenient for assemble.
It should be noted that the diameter of the connecting section 130 may be selected according to practical situations to prevent the connection between the connecting section 130 and the yielding section 140 from breaking.
In an embodiment of the present invention, the junction of the yield segment 140 and the connecting segment 130 has a chamfer. So configured, stress concentrations at the junction of the yield segment 140 and the connecting segment 130 are reduced.
In an embodiment of the invention, the junction of the yield segment 140 and the elastic segment 150 has a chamfer. So configured, stress concentrations of the yield and elastic segments 140, 150 are reduced.
Referring to fig. 1, in the embodiment of the present invention, each of the 2 connection sections 130 is screwed with a first nut 132, one end of the first nut 132 abuts against the end of the connection sleeve 160, and a restraining spring 170 is interposed between the first nut 132 and the connection end surfaces of the elastic section 150 and the yield section 140.
Referring to fig. 2, in the embodiment of the present invention, a first threaded hole 111 is formed on the circumferential surface of the constraint sleeve 110, a bolt 112 is connected to the first threaded hole 111, and an end surface of the bolt 112 abuts against the circumferential surface of the connection sleeve 160 to limit the relative movement between the connection sleeve 160 and the constraint sleeve 110 along the axial direction.
In one embodiment of the present invention, the number of the first threaded holes 111 is 1. So configured, relative movement between the restraining sleeve 110 and the connecting sleeve 160 in the axial direction is prevented.
In another embodiment of the present invention, the number of first threaded holes 111 is at least 2 and is spaced apart in the circumferential direction and/or axial direction of the constraining sleeve 110. So configured, relative movement between the restraining sleeve 110 and the connecting sleeve 160 in the axial direction is prevented.
In the embodiment of the invention, a first threaded hole 111 is formed in the circumferential surface of the constraint sleeve 110, and a bolt 112 is connected to the first threaded hole 111; the circumferential surface of the connection sleeve 160 is provided with a second threaded hole, the bolt 112 is in threaded connection with the second threaded hole, and the end of the bolt 112 abuts against the connection section 130 after passing through the second threaded hole, so as to limit the relative movement of the connection sleeve 160 and the energy dissipation core 120 along the axial direction.
In a specific embodiment of the present invention, the number of the first threaded holes 111 is 2, and the 2 first threaded holes 111 are arranged at intervals along the axial direction of the constraint sleeve; the number of the second screw holes is 2, and 2 second screw holes are provided at intervals along the axial direction of the connection sleeve 160. So configured, relative movement between the connecting sleeve 160 and the dissipative core 120 in the axial direction is prevented.
Referring to fig. 3-12, a second aspect of the embodiment of the present invention provides a modular multistage adjustable shear damper 20, which includes a top plate 210, a bottom plate 220, a first connecting plate 230 and a second connecting plate 240 fixed therebetween, and the energy dissipation rods 10 described above, wherein the energy dissipation rods 10 are multiple and spaced apart, the energy dissipation rods 10 penetrate through the first connecting plate 230 and the second connecting plate 240, and the external thread segments 151 are respectively connected to two ends of the first connecting plate 230 and the second connecting plate 240 through second nuts 152; the first connecting plate 230 is fixedly arranged on the top plate 210, and the second connecting plate 240 is fixedly arranged on the bottom plate 220; or, the second connecting plate 240 is fixedly arranged on the top plate 210, and the first connecting plate 230 is fixedly arranged on the bottom plate 220.
It should be noted that the energy dissipation rods 10 have a plurality of energy dissipation rods 10, and the plurality of energy dissipation rods 10 may be disposed at intervals along the first direction; the first direction refers to a direction perpendicular to the top plate 210 and the bottom plate 220; the energy consuming bars 10 may be arranged at intervals of at least 2 along a second direction, which is perpendicular to the first direction.
According to the modularized multi-stage adjustable shear damper 20 provided by the embodiment of the invention, different numbers of energy consumption rods 10 can be arranged according to the bearing capacity, rigidity and energy consumption requirements of the damper 20, and the energy consumption rods 10 are modularized, so that the damper 20 is simple to process and manufacture and low in cost.
Referring to fig. 4, 9 and 10, in the embodiment of the present invention, the external thread segments 151 of the partial energy consumption rod 10 are pre-tightened and connected to both ends of the first connection plate 230 and both ends of the second connection plate 240 through the second nuts 152; and, the external thread segments 151 of the remaining energy consumption rod 10 are respectively connected to both ends of the first connection plate 230 and both ends of the second connection plate 240 with a predetermined gap by the second nuts 152.
It should be noted that, the external thread section 151 of the partial energy consumption rod 10 is in threaded connection with a second nut 152, and the second nut 152 is respectively pre-tightly connected to two ends of the first connection plate 230 and two ends of the second connection plate 240 to form a single-stage energy consumption unit; the external thread section 151 of the rest of the energy consumption rod 10 is screwed with a second nut 152, and the second nut 152 is respectively connected to two ends of the first connection plate 230 and two ends of the second connection plate 240 with a preset gap, so as to form a dual-stage energy consumption unit. If the preset gaps of the different energy dissipation bars 10 are different, a double-order energy dissipation unit or a third-order energy dissipation unit or a higher-order energy dissipation unit can be formed.
When the first connection plate 230 and the second connection plate 240 perform a relative motion along the axial direction of the energy dissipation rod 10, a compressive force or a tensile force is applied to the end of the energy dissipation rod 10, and the energy dissipation rod 10 is deformed to provide a bearing capacity and an energy dissipation capacity.
When the first connection plate 230 and the second connection plate 240 perform a relative motion along the axial direction of the energy dissipation rod 10, the single-stage energy dissipation unit is first subjected to a compressive force or a tensile force, and the energy dissipation rod 10 of the single-stage energy dissipation unit begins to generate an axial tensile deformation to provide rigidity, bearing capacity and energy dissipation capacity of the first stage; when the relative movement distance of the first connection plate 230 and the second connection plate 240 in the axial direction of the energy dissipation rod 10 exceeds the preset gap, the dual-stage energy dissipation unit is applied with pressure or tension, and the energy dissipation rod 10 of the dual-stage energy dissipation unit starts to generate axial tension-compression deformation to provide the bearing capacity and energy dissipation capacity of the second stage.
According to the modular multistage adjustable shear damper 20 provided by the embodiment of the invention, in the first aspect, the modular combined energy consumption rod 10 and the second nut 152 are in pre-tightening connection with two ends of the first connecting plate 230 and two ends of the second connecting plate 240 by adopting part of the energy consumption rod 10 and the second nut 152, and the other part of the energy consumption rod 10 and two ends of the first connecting plate 230 and two ends of the second connecting plate 240 are connected with preset gaps, so that the energy consumption rod 10 generates axial tension-compression deformation, and single-stage, double-stage or higher-stage bearing capacity and energy consumption capacity are sequentially provided in stages, namely, multistage bearing capacity and energy consumption capacity are provided; the modular multistage adjustable shear damper 20 provided by the embodiment of the invention can flexibly adjust the initial rigidity, bearing capacity and energy consumption capacity of the damper 20 according to different types and different levels of disasters encountered by the structure and different deformation levels, so as to adapt to the energy dissipation and vibration reduction performance requirements of the damper 20 in different stress stages.
Referring to fig. 4-6, in an embodiment of the present invention, the first connection plate 230 is a first L-shaped connection plate 231, the second connection plate 240 is a second L-shaped connection plate 241, the first L-shaped connection plate 231 and the second L-shaped connection plate 241 are complementarily arranged, and the plurality of energy dissipation rods 10 penetrate through a first end surface of the first L-shaped connection plate 231 and a second end surface of the second L-shaped connection plate 241, where the first end surface and the second end surface can relatively move; wherein the first end face and the second end face are capable of relative movement. Note that the first L-shaped connection plate 231 and the second L-shaped connection plate 241 are complementarily arranged, that is, the first L-shaped connection plate 231 and the second L-shaped connection plate 241 form a rectangular structure. So configured, on the one hand, the movement of the first connection plate 230 and the second connection plate 240 in the direction perpendicular to the axial direction of the energy consumption rod 10 and parallel to the first end face is restricted; on the other hand, the rigidity of the first and second connection plates 230 and 240 is improved, and the deformation of the first and second connection plates 230 and 240 is reduced.
Referring to fig. 7-12, in another embodiment of the present invention, the number of first connecting plates 230 is 2, and the first connecting plates 230 are third L-shaped connecting plates 232, and the third L-shaped connecting plates 232 are disposed opposite to each other at intervals; the second connecting plates 240 are T-shaped connecting plates 242, the T-shaped connecting plates 242 are located between the 2 third L-shaped connecting plates 232 and are arranged complementarily to the 2 third L-shaped connecting plates 232, and the plurality of energy consumption rods 10 penetrate through the first end surfaces of the third L-shaped connecting plates 232 and the second end surfaces of the T-shaped connecting plates 242; wherein the first end face and the second end face are capable of relative movement. It should be noted that, the T-shaped connection plates 242 are located between the 2 third L-shaped connection plates 232 and are arranged complementarily to the 2 third L-shaped connection plates 232, that is, the T-shaped connection plates 242 include a first plate and a second plate, one end of the second plate is vertically connected to the middle of the first plate, the first end face is located on the first plate, and the first plate and the second end face are spaced and oppositely located; the second plate is located between 2 third L-shaped connection plates 232. So configured, on the one hand, the movement of the first connection plate 230 and the second connection plate 240 in the direction perpendicular to the axial direction of the energy consumption rod 10 and parallel to the first end face is restricted; on the other hand, the rigidity of the first and second connection plates 230 and 240 is improved, and the deformation of the first and second connection plates 230 and 240 is reduced.
Referring to fig. 7-9, in one embodiment of the present invention, if the first connecting plate 230 is fixedly disposed on the top plate 210, the second connecting plate 240 is fixedly disposed on the bottom plate 220, and the height of the second connecting plate 240 is smaller than that of the first connecting plate 230; the first sliding plate 221 is fixedly arranged on the upper surface of the bottom plate 220, the second sliding plate is fixedly arranged on the lower surface of the first connecting plate 230, and the upper surface of the first sliding plate 221 is in butt joint with the lower surface of the second sliding plate. So configured, when the first connection plate 230 and the second connection plate 240 are relatively moved, friction between the first connection plate 230 and the bottom plate 220 can be reduced.
Referring to fig. 7-9, in the second embodiment of the present invention, if the first connecting plate 230 is fixedly arranged on the bottom plate 220, the second connecting plate 240 is fixedly arranged on the top plate 210, and the height of the second connecting plate 240 is smaller than that of the first connecting plate 230; the first sliding plate 221 is fixedly arranged on the upper surface of the bottom plate 220, the third sliding plate is fixedly arranged on the lower surface of the second connecting plate 240, and the upper surface of the first sliding plate 221 is in butt joint with the lower surface of the third sliding plate. So configured, when the first connection plate 230 and the second connection plate 240 are relatively moved, friction between the second connection plate 240 and the bottom plate 220 can be reduced.
Referring to fig. 3-6, in a third embodiment of the present invention, if the first connecting plate 230 is fixed on the top plate 210, the second connecting plate 240 is fixed on the bottom plate 220, and the heights of the first connecting plate 230 and the second connecting plate 240 are the same; a fourth sliding plate 212 is fixedly arranged on the lower surface of the top plate 210, a fifth sliding plate 222 is fixedly arranged on the upper surface of the bottom plate 220, the lower surface of the fourth sliding plate 212 is abutted with the upper surface of the second connecting plate 240, and the upper surface of the fifth sliding plate 222 is abutted with the lower surface of the first connecting plate 230. So configured, when the first connection plate 230 and the second connection plate 240 are relatively moved, the friction between the second connection plate 240 and the top plate 210 and the friction between the first connection plate 230 and the bottom plate can be reduced.
Referring to fig. 3-6, in other embodiments of the present invention, if the second connecting plate 240 is fixed to the top plate 210, the first connecting plate 230 is fixed to the bottom plate 220, and the heights of the first connecting plate 230 and the second connecting plate 240 are the same; a fourth sliding plate 212 is fixedly arranged on the lower surface of the top plate 210, a fifth sliding plate 222 is fixedly arranged on the upper surface of the bottom plate 220, the lower surface of the fourth sliding plate 212 is abutted with the upper surface of the first connecting plate 230, and the upper surface of the fifth sliding plate 222 is abutted with the lower surface of the second connecting plate 240. So configured, when the first connection plate 230 and the second connection plate 240 are relatively moved, the friction between the first connection plate 230 and the top plate 210 and the friction between the second connection plate 240 and the bottom plate can be reduced.
In the embodiment of the present invention, the materials of the first sliding plate 221, the second sliding plate, the third sliding plate, the fourth sliding plate 212 and the fifth sliding plate 222 are all polytetrafluoroethylene polymer materials.
Although the embodiments of the present invention are disclosed above, the embodiments of the present invention are not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the embodiments of the invention, and the scope of the embodiments of the invention should be pointed out in the appended claims.
Claims (10)
1. An energy dissipating lever, comprising:
a constraining sleeve (110);
the energy dissipation core (120) penetrates through the constraint sleeve (110) and comprises 2 connecting sections (130), a yielding section (140) and an elastic section (150) which are sequentially connected with each other along the axis direction, wherein the connecting sections (130) and the yielding section (140) are positioned in the constraint sleeve (110), part of the elastic section (150) is positioned in the constraint sleeve (110), the elastic section (150) comprises an external thread section (151), and the external thread section (151) is arranged at two ends of the elastic section (150);
a connecting sleeve (160) fixedly connected to the constraint sleeve (110) and two ends of the connecting sleeve are fixedly connected to the connecting section (130) respectively; the method comprises the steps of,
and the restraining springs (170) are provided with 2 and are respectively sleeved on the yielding sections (140).
2. The energy consuming lever (10) according to claim 1, wherein the connecting section (130) is provided with an external thread, the connecting sleeve (160) is provided with an internal thread, the external thread and the internal thread being mated;
and/or the connection of the yielding section (140) and the connecting section (130) has a chamfer;
and/or the connection of the yielding section (140) and the elastic section (150) is provided with a chamfer.
3. The energy consuming lever (10) according to claim 1, wherein each of the 2 connection segments (130) is threadedly connected with a first nut (132), one end of the first nut (132) being abutted against an end of the connection sleeve (160), the restraining spring (170) being interposed between the first nut (132) and the connection end faces of the elastic segment (150) and the yielding segment (140).
4. The energy consumption rod (10) according to claim 1, wherein a first threaded hole (111) is formed in the circumferential surface of the constraint sleeve (110), a bolt (112) is connected in the first threaded hole (111), and an end surface of the bolt (112) abuts against the circumferential surface of the connection sleeve (160) so as to limit the relative movement of the connection sleeve (160) and the constraint sleeve (110) along the axial direction.
5. The energy consumption rod according to claim 1, wherein a first threaded hole (111) is formed in the circumferential surface of the constraint sleeve (110), and a bolt (112) is connected in the first threaded hole (111); the circumference of the connecting sleeve (160) is provided with a second threaded hole, the bolt (112) is in threaded connection with the second threaded hole, passes through the second threaded hole, and the end part of the bolt (112) is abutted to the connecting section (130) so as to limit the relative movement of the connecting sleeve (160) and the energy dissipation core (120) along the axial direction.
6. The modular multistage adjustable shear damper is characterized by comprising a top plate (210), a bottom plate (220), a first connecting plate (230) and a second connecting plate (240) which are fixedly arranged between the top plate and the bottom plate, and the energy consumption rods (10) according to any one of claims 1-5, wherein the energy consumption rods (10) are arranged at intervals, the energy consumption rods (10) penetrate through the first connecting plate (230) and the second connecting plate (240), and the external thread sections (151) are respectively connected to two ends of the first connecting plate (230) and the second connecting plate (240) through second nuts (152);
the first connecting plate (230) is fixedly arranged on the top plate (210), and the second connecting plate (240) is fixedly arranged on the bottom plate (220); or, the second connecting plate (240) is fixedly arranged on the top plate (210), and the first connecting plate (230) is fixedly arranged on the bottom plate (220).
7. The modular multistage adjustable shear damper according to claim 6, wherein a portion of the externally threaded section (151) of the energy consuming bar (10) is pre-tightened to be connected to both ends of the first connection plate (230) and both ends of the second connection plate (240), respectively, by means of a second nut (152); the method comprises the steps of,
the other parts of the external thread sections (151) of the energy consumption rod (10) are respectively connected with the two ends of the first connecting plate (230) and the two ends of the second connecting plate (240) through second nuts (152) with preset gaps.
8. The modular multi-stage adjustable shear damper of claim 6, wherein the first connection plate (230) is a first L-shaped connection plate (231), the second connection plate (240) is a second L-shaped connection plate (241), the first L-shaped connection plate (231) and the second L-shaped connection plate (241) are complementarily arranged, and the plurality of energy consuming rods (10) penetrate a first end surface of the first L-shaped connection plate (231) and a second end surface of the second L-shaped connection plate (241), wherein the first end surface and the second end surface are relatively movable;
or, the number of the first connecting plates (230) is 2, the first connecting plates (230) are third L-shaped connecting plates (232), and the third L-shaped connecting plates (232) are oppositely arranged at intervals; the second connecting plates (240) are T-shaped connecting plates (242), the T-shaped connecting plates (242) are located between 2 third L-shaped connecting plates (232) and are arranged complementarily to the 2 third L-shaped connecting plates (232), and a plurality of energy consumption rods (10) penetrate through the first end faces of the third L-shaped connecting plates (232) and the second end faces of the T-shaped connecting plates (242);
wherein the first end face and the second end face are relatively movable.
9. The modular multi-stage adjustable shear damper of claim 6, wherein if the first connection plate (230) is fixedly disposed on the top plate (210), the second connection plate (240) is fixedly disposed on the bottom plate (220), and the height of the second connection plate (240) is smaller than the height of the first connection plate (230); the upper surface of the bottom plate (220) is fixedly provided with a first sliding plate (221), the lower surface of the first connecting plate (230) is fixedly provided with a second sliding plate, and the upper surface of the first sliding plate (221) is abutted with the lower surface of the second sliding plate;
or, if the first connecting plate (230) is fixedly arranged on the bottom plate (220), the second connecting plate (240) is fixedly arranged on the top plate (210), and the height of the second connecting plate (240) is smaller than that of the first connecting plate (230); the upper surface of the bottom plate (220) is fixedly provided with a first sliding plate (221), the lower surface of the second connecting plate (240) is fixedly provided with a third sliding plate, and the upper surface of the first sliding plate (221) is abutted with the lower surface of the third sliding plate;
or, if the first connecting plate (230) is fixedly arranged on the top plate (210), the second connecting plate (240) is fixedly arranged on the bottom plate (220), and the heights of the first connecting plate (230) and the second connecting plate (240) are the same; a fourth sliding plate (212) is fixedly arranged on the lower surface of the top plate (210), a fifth sliding plate (222) is fixedly arranged on the upper surface of the bottom plate (220), the lower surface of the fourth sliding plate (212) is abutted with the upper surface of the second connecting plate (240), and the upper surface of the fifth sliding plate (222) is abutted with the lower surface of the first connecting plate (230);
or, if the second connecting plate (240) is fixedly arranged on the top plate (210), the first connecting plate (230) is fixedly arranged on the bottom plate (220), and the heights of the first connecting plate (230) and the second connecting plate (240) are the same; the lower surface of roof (210) has set firmly fourth slide (212), the upper surface of bottom plate (220) has set firmly fifth slide (222), the lower surface of fourth slide (212) with the upper surface butt of first connecting plate (230), the upper surface of fifth slide (222) with the lower surface butt of second connecting plate (240).
10. The modular multistage adjustable shear damper of claim 9, wherein the first (221), second, third, fourth (212) and fifth (222) slides are all polytetrafluoroethylene polymer materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311341460.6A CN117386037A (en) | 2023-10-17 | 2023-10-17 | Energy consumption rod and modularized multistage adjustable shearing damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311341460.6A CN117386037A (en) | 2023-10-17 | 2023-10-17 | Energy consumption rod and modularized multistage adjustable shearing damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117386037A true CN117386037A (en) | 2024-01-12 |
Family
ID=89466080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311341460.6A Pending CN117386037A (en) | 2023-10-17 | 2023-10-17 | Energy consumption rod and modularized multistage adjustable shearing damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117386037A (en) |
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2023
- 2023-10-17 CN CN202311341460.6A patent/CN117386037A/en active Pending
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