CN114704146B - Soft steel energy dissipation damper with open and closed circular tube top end - Google Patents
Soft steel energy dissipation damper with open and closed circular tube top end Download PDFInfo
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- CN114704146B CN114704146B CN202210439523.0A CN202210439523A CN114704146B CN 114704146 B CN114704146 B CN 114704146B CN 202210439523 A CN202210439523 A CN 202210439523A CN 114704146 B CN114704146 B CN 114704146B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 94
- 239000010959 steel Substances 0.000 title claims abstract description 94
- 230000021715 photosynthesis, light harvesting Effects 0.000 title claims description 24
- 238000005265 energy consumption Methods 0.000 claims abstract description 26
- 230000009471 action Effects 0.000 claims description 31
- 230000000712 assembly Effects 0.000 claims description 13
- 238000000429 assembly Methods 0.000 claims description 13
- 229910000639 Spring steel Inorganic materials 0.000 claims description 12
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 9
- 230000009467 reduction Effects 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 9
- 238000007906 compression Methods 0.000 description 9
- 239000012636 effector Substances 0.000 description 7
- 230000006378 damage Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000010339 dilation Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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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
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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
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- 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)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Vibration Dampers (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention belongs to the field of civil engineering earthquake resistance and vibration reduction, and relates to a soft steel energy consumption damper with an open and closed circular tube top. The upper end plate and the lower end plate are respectively provided with a bolt hole, so that the connection with the main body structure is facilitated, and the middle vertical plate is connected with the upper end plate to bear vertical load. The tabletting damper is combined with the middle vertical plate, and the openable deformation circular tube is also connected with the side limit plate through bolts, so that the aim of replaceability and repairability is achieved. The side limit plate is connected with the lower end plate and can jointly realize the deformation of the internal structure with the openable deformation circular tube. The corner corrugated steel plates are connected at the corners of the upper end plates. The device can effectively absorb and dissipate horizontal force through internal deformation.
Description
Technical Field
The invention belongs to the field of earthquake resistance and vibration reduction in civil engineering, and relates to a soft steel energy dissipation damper with a circular tube and an open and closed top end.
Background
With the continuous development of national economy, more and more high-rise buildings and super high-rise buildings are in the field of view of people. However, the influence caused by horizontal load in high-rise buildings is particularly remarkable, compared with the middle and low floors in the use process.
For the research of building with destruction and incomplete collapse in earthquake, especially in the building with higher height, the shock absorption and vibration isolation are more important, and the loss is reduced to the greatest extent by using the soft rigidity. It is obviously uneconomical to resist the energy from the earthquake by increasing the size and volume of the components and also creates a waste of space. Traditional buildings mainly rely on self structural deformation to absorb seismic energy, and damage after earthquake is almost irreversible. Therefore, there is a need for a structural energy consuming damper that can absorb energy from deformation of a building structure during an earthquake, can provide the building structure with a certain deformation capacity, and can also ensure that the building structure is not damaged.
Disclosure of Invention
The invention aims to overcome the problems and provide the soft steel energy-consuming damper with the open and closed top ends of the circular pipes, which can effectively absorb the energy of a building structure and protect the integral structure of the building structure.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
A soft steel energy dissipation damper with an open and closed top end of a circular tube comprises an upper end plate, a lower end plate, a corner corrugated steel plate, side limit plates, a middle vertical plate, a tabletting damper and an energy dissipation cylinder assembly;
The middle vertical plate is arranged between the upper end plate and the lower end plate, the upper end and the lower end of the middle vertical plate are respectively fixedly connected with the upper end plate and the lower end plate, and the middle vertical plate is in a cross shape; a side limit plate is fixedly arranged on the lower end plate at the opposite position of each end part of the middle vertical plate; a tabletting damper is arranged between each end part of the middle vertical plate and the side limit plate opposite to the middle vertical plate, the tabletting damper is arched, two ends of the tabletting damper are connected with the end parts of the middle vertical plate, and the top of the tabletting damper is in contact with the side limit plate;
Two energy consumption barrel assemblies are connected between the two side limit plates at opposite positions, one energy consumption barrel assembly penetrates through one side of the middle vertical plate, which is parallel to the two side limit plates, the other energy consumption barrel assembly penetrates through the other side of the middle vertical plate, which is parallel to the two side limit plates, the two energy consumption barrel assemblies are symmetrical with respect to the side of the middle vertical plate, which is perpendicular to the two side limit plates, and the middle vertical plate is provided with a hole for the energy consumption barrel assembly to penetrate through;
The energy consumption cylinder assembly comprises an expansion actuator, a closing action sleeve, a closing sleeve connecting plate and an open closing circular tube, wherein oblique chamfer angles are arranged at the outer edges of two ends of the expansion actuator, the two ends of the expansion actuator are symmetrically and coaxially provided with the closing action sleeve, the expansion actuator and the closing action sleeve are fixedly connected with a middle vertical plate through the closing sleeve connecting plate, an open closing circular tube is sleeved in an inner cavity of each closing action sleeve, a plurality of longitudinal gaps are uniformly distributed in the circumferential direction of one end of the open closing circular tube, the end of the open closing circular tube is positioned in the closing action sleeve, and the inner diameter of the end of the open closing circular tube is smaller than the outer diameter of the expansion actuator and not smaller than the diameter of the oblique chamfer angle small end of the expansion actuator; the other end of the open-close type circular tube is connected with a side limit plate;
And corner corrugated steel plates are arranged between the adjacent side limit plates, two sides of each corner corrugated steel plate are respectively contacted with the upper edges of the adjacent side limit plates, the tops of all the corner corrugated steel plates are fixedly connected with the upper end plates, and a preset distance is reserved between the lower ends of the corner corrugated steel plates and the lower end plates.
Preferably, a limiting plate stiffening rib is further arranged between the side limiting plate and the lower end plate.
Preferably, the tabletting damper adopts a plate spring formed by overlapping and combining a plurality of spring steel bars.
Preferably, the two ends of the tabletting damper are connected with the end parts of the middle vertical plates through shafts, and the rotating shafts are perpendicular to the end parts of the middle vertical plates.
Preferably, the expansion actuator is of a cylindrical structure, the middle part of the expansion actuator is a section of cylindrical ring, two ends of the cylindrical ring are of circular truncated cone-shaped annular structures, and the closed sleeve connecting plate is fixedly connected with the middle part of the expansion actuator.
Preferably, the open-close circular tube is a section of circular ring, the inner diameter of the open-close circular tube is smaller than the outer diameter of the expanding actuator and larger than the inner diameter of the expanding actuator, and the outer wall of the open-close circular tube is fixedly connected with the closed sleeve connecting plate.
Preferably, the open-close type circular tube is connected with the side limit plate through a bolt, a hole for the bolt to pass through is a long hole in the horizontal direction on the side limit plate, and the open-close type circular tube and the side limit plate can slide relatively along the long hole at the connecting position of the bolt.
Preferably, two corner corrugated steel plates with the same shape are connected between the adjacent side limit plates, each of the two corner corrugated steel plates comprises a wave crest and a wave trough, the two corner corrugated steel plates are connected into a convex structure, the convex parts of the convex structure face the four corners of the upper end plate, and the sides of the convex structure are connected with the adjacent side limit plates.
Preferably, the upper end and the lower end of the middle vertical plate are respectively welded with the upper end plate and the lower end plate, the lower end plate is welded with the side limit plate, the expansion actuator is welded with the closing sleeve connecting plate, the closing sleeve connecting plate is welded with the middle vertical plate, the contact part of the corner corrugated steel plate and the side limit plate falls in the thickness area of the side limit plate, and the corner corrugated steel plate is welded with the upper end plate.
Preferably, the upper end plate and the lower end plate are of rectangular structures and are parallel to corresponding sides, the cross axle center of the middle vertical plate coincides with the central axes of the upper end plate and the lower end plate, the sides of the middle vertical plate are parallel to the plane symmetry axes of the upper end plate and the lower end plate, and the open-closed type soft steel energy dissipation damper with the round tube top end is of a symmetrical structure relative to the sides of the middle vertical plate.
The invention has the following remarkable advantages:
The soft steel energy dissipation damper with the open and closed top end of the circular tube can absorb and consume horizontal acting forces generated in two mutually perpendicular directions, and when the corrugated steel plate at the corner of the upper end plate contacts with the corresponding side limit plate in specific operation, plastic deformation can occur in the direction perpendicular to the rib plane of the corrugated steel plate; simultaneously, the expansion actuator acts, when the upper end plate and the structure are horizontally displaced, one end of the open-close type circular tube provided with the notch moves axially and is sleeved outside the expansion actuator, the expansion actuator expands the end part of the open-close type circular tube provided with the notch, plastic deformation is generated to consume part of energy, and when the upper end plate is displaced in the opposite direction, the expanded open-close type circular tube is restored under the action of the closing action sleeve; under the limit of the side limit plate, the tabletting damper is elastically deformed to absorb energy, and can provide reaction force for the combined work of the open and closed circular tube and the closed acting sleeve while recovering deformation.
Further, the open-close type circular tube and the side limit plate can slide relatively along the long hole at the connection part of the bolts, and the open-close type circular tube is arranged on the corresponding side limit plate through the bolts and can slide, so that the vertical stress is not hindered. And further, the important structure is protected from damage, and when the deformation component in the damper is damaged and cannot work, part of the damage component can be replaced to restore the whole function.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description of the embodiments or the drawings used in the description of the prior art will make a brief description;
FIG. 1 is a schematic diagram of an explosive structure of the invention with a round tube top open-close type mild steel energy dissipation damper.
Fig. 2 is a top view of the present invention with a round tube top open and closed mild steel dissipative damper (upper end plate and corner corrugated steel plate not shown).
Fig. 3 is a front view of the invention with a round tube open-top closed type mild steel dissipative damper.
Fig. 4 is a schematic view of a tabletting damper according to the present invention.
FIG. 5 (a) is an exploded view of a combination dilation effector and closure sleeve of the present invention; fig. 5 (b) is a diagram of a combination of an expanding applicator and a closure sleeve of the present invention.
Fig. 6 is a schematic view of an open-close round tube according to the present invention.
Fig. 7 is a schematic view of a corrugated steel sheet of the present invention.
In the figure: 1-an upper end plate, 2-a lower end plate; 3-a first corner corrugated steel plate, 4-a second corner corrugated steel plate, 5-a third corner corrugated steel plate and 6-a fourth corner corrugated steel plate; 7-fifth-corner corrugated steel plate, 8-sixth-corner corrugated steel plate, 9-seventh-corner corrugated steel plate and 10-eighth-corner corrugated steel plate; 11-a first side limit plate, 12-a second side limit plate, 13-a third side limit plate and 14-a fourth side limit plate; 15-first limiting plate stiffening ribs, 16-second limiting plate stiffening ribs and 17-third limiting plate stiffening ribs; 18-first intermediate riser, 19-second intermediate riser, 20-third intermediate riser, 21-fourth intermediate riser; 22-first compression damper, 23-second compression damper, 24-third compression damper, 25-fourth compression damper; 26-a first upper layer open and closed circular tube, 26-1-a notch, 27-a second upper layer open and closed circular tube, 28-a third upper layer open and closed circular tube, 29-a fourth upper layer open and closed circular tube; 30-a first lower-layer open-closed round tube, 31-a second lower-layer open-closed round tube, 32-a third lower-layer open-closed round tube, 33-a fourth lower-layer open-closed round tube; 34-first upper closure sleeve, 35-second upper closure sleeve, 36-third upper closure sleeve, 37-fourth upper closure sleeve; 38-first lower closure sleeve, 39-second lower closure sleeve, 40-third lower closure sleeve, 41-fourth lower closure sleeve; 42-a first dilation effector; 42-1-bevel chamfer, 43-second expansion effector, 44-third expansion effector, 45-fourth expansion effector; 46-first closed casing web, 47-second closed casing web; 48-first spring steel bar, 49-second spring steel bar, 50-third spring steel bar, 51-fourth spring steel bar; 52-first anchor, 53-second anchor, 54-third anchor, 55-fourth anchor, 56-fifth anchor, 57-sixth anchor.
Detailed Description
The invention is described in further detail below with reference to the attached drawing figures:
Referring to fig. 1 to 7, the soft steel energy-consuming damper with open and closed top end of circular tube of the present invention comprises an upper end plate 1, a lower end plate 2, a corner wave-shaped steel plate, a side limit plate, a middle vertical plate, a tabletting damper and an energy-consuming cylinder assembly; the middle vertical plate is arranged between the upper end plate 1 and the lower end plate 2, the upper end and the lower end of the middle vertical plate are respectively fixedly connected with the upper end plate 1 and the lower end plate 2, and the middle vertical plate is in a cross shape; referring specifically to fig. 1 and 2, the middle riser is formed by connecting a first middle riser 18, a second middle riser 19, a third middle riser 20 and a fourth middle riser 21 into a whole structure, the first middle riser 18 and the third middle riser 20 are integrated and provided with holes, and the second middle riser 19 and the fourth middle riser 21 are respectively welded on two sides of the first middle riser 18 and the third middle riser 20 vertically and provided with holes. The upper end plate 1 is welded on the upper part of the combined middle vertical plate, and the lower end plate 2 is welded on the lower part of the combined middle vertical plate. Side limit plates are fixedly arranged on the lower end plate 2 at the opposite positions of each end part of the middle vertical plates (namely, the outer ends of the first middle vertical plate 18, the second middle vertical plate 19, the third middle vertical plate 20 and the fourth middle vertical plate 21);
Two waveform steel plates are respectively arranged at the lower parts of four corners of the upper end plate 1, eight waveform steel plates are respectively arranged at the first corner waveform steel plate 3, the second corner waveform steel plate 4, the third corner waveform steel plate 5, the fourth corner waveform steel plate 6, the fifth corner waveform steel plate 7, the sixth corner waveform steel plate 8, the seventh corner waveform steel plate 9 and the eighth corner waveform steel plate 10, which are sequentially arranged in a top view anticlockwise direction, wherein the first corner waveform steel plate 3 and the second corner waveform steel plate 4 are connected into a whole and then are arranged at the first corner of the upper end plate 1, the third corner waveform steel plate 5 and the fourth corner waveform steel plate 6 are connected into a whole and then are arranged at the second corner of the upper end plate 1, the fifth corner waveform steel plate 7 and the sixth corner waveform steel plate 8 are connected into a whole and then are arranged at the third corner of the upper end plate 1, and the seventh corner waveform steel plate 9 and the eighth corner waveform steel plate 10 are connected into a whole and then are arranged at the fourth corner of the upper end plate 1. Referring to fig. 1,3 and 7, each of the corner corrugated steel plates has a peak and a trough, and the two corner corrugated steel plates are connected to form a convex structure, and the convex parts of the convex structure face to the four corners of the upper end plate 1. The spacing between the two bight wave form steel sheets on each side of the upper end plate 1 is the side limiting plate length, so that two sides of the convex-shaped structure formed by connecting two bight wave form steel sheets are inserted between two adjacent side limiting plates, taking fig. 3 as an example, the integral structure after connecting the first bight wave form steel sheet 3 and the second bight wave form steel sheet 4 is arranged between the first side limiting plate 11 and the second side limiting plate 12, and the integral structure contacts with the longitudinal sides of the first side limiting plate 11 and the second side limiting plate 12.
A first tabletting damper 22, a second tabletting damper 23, a third tabletting damper 24 and a fourth tabletting damper 25 are respectively arranged between the outer end of the first middle vertical plate 18 and the first side limit plate 11, between the outer end of the second middle vertical plate 19 and the second side limit plate 12, between the outer end of the third middle vertical plate 20 and the third side limit plate 13 and between the outer end of the fourth middle vertical plate 21 and the fourth side limit plate 14, each tabletting damper is arched, the upper end and the lower end of each tabletting damper are connected with the upper end and the lower end of the corresponding middle vertical plate through bolts, the bolts are vertical to the middle vertical plate, and the top of each tabletting damper is in contact with the side limit plate;
The first middle vertical plate 18, the second middle vertical plate 19, the third middle vertical plate 20 and the fourth middle vertical plate 21 are respectively provided with energy consumption barrel assemblies in a penetrating way, wherein the energy consumption barrel assemblies connected on the first middle vertical plate 18 and the third middle vertical plate 20 are symmetrical, and two ends of the two energy consumption barrel assemblies are respectively connected with the second side limit plate 12 and the fourth side limit plate 14; the energy consumption barrel assemblies connected on the second middle vertical plate 19 and the fourth middle vertical plate 21 are symmetrical, two ends of the two energy consumption barrel assemblies are respectively connected with the first side limit plate 11 and the third side limit plate 13, and the energy consumption barrel assemblies connected on the first middle vertical plate 18 and the third middle vertical plate 20 are positioned above the energy consumption barrel assemblies connected on the second middle vertical plate 19 and the fourth middle vertical plate 21; the middle vertical plate is provided with a hole for the energy consumption cylinder component to pass through;
Referring to fig. 1-3 and fig. 5 (a) and 5 (b), the energy consumption cylinder assembly comprises an expansion actuator, a closing action sleeve, a closing sleeve connecting plate and an open closing circular tube, wherein oblique chamfer angles are arranged at the outer edges of two ends of the expansion actuator, the closing action sleeve is symmetrically and coaxially arranged at two ends of the expansion actuator, the expansion actuator and the closing action sleeve are fixedly connected with a middle vertical plate through the closing sleeve connecting plate, an inner cavity of each closing action sleeve is sleeved with an open closing circular tube, a plurality of longitudinal notches are uniformly distributed at one end of the open closing circular tube in the circumferential direction, the end of the open closing circular tube is positioned in the closing action sleeve, and the inner diameter of the end of the open closing circular tube is smaller than the outer diameter of the expansion actuator and is not smaller than the diameter of the oblique chamfer angle small end of the expansion actuator; the other end of the open-close type circular tube is connected with a side limit plate; the expansion actuator is of a cylindrical structure, the middle part of the expansion actuator is a section of cylindrical ring, the two ends of the cylindrical ring are of circular truncated cone-shaped annular structures, and the closed sleeve connecting plate is fixedly connected with the middle part of the expansion actuator. The open-close type circular tube is a section of circular ring, the inner diameter of the open-close type circular tube is smaller than the outer diameter of the expansion actuator and is not smaller than the diameter of the small end of the oblique chamfer angle of the expansion actuator, and the outer wall of the open-close type circular tube is fixedly connected with the closed sleeve connecting plate.
Taking the orientation shown in fig. 2as an example, two energy dissipation barrel assemblies in the left-right orientation are respectively marked as a first energy dissipation barrel assembly and a second energy dissipation barrel assembly, and two energy dissipation barrel assemblies in the upper-lower orientation are respectively marked as a third energy dissipation barrel assembly and a fourth energy dissipation barrel assembly.
Taking the energy consuming cartridge assembly passing through the first middle riser 18, the two ends and the fourth side limiting plate 14 and the second side limiting plate 12 as an example, the following description will be made: the energy dissipation cartridge assembly comprises a first upper closure sleeve 34, a fourth upper closure sleeve 37, a first expanding effector 42, a first closure sleeve connection plate 46, a second closure sleeve connection plate 47, two first upper open closure tubulars 26, the first upper closure sleeve 34, the fourth upper closure sleeve 37 being welded with the first expanding effector 42 through the first closure sleeve connection plate 46 and the second closure sleeve connection plate 47 within the aperture in the first intermediate riser 18; the second upper closure sleeve 35, the third upper closure sleeve 36 are welded with the second expansion actuator 43 via the first closure sleeve web 46 and the second closure sleeve web 47 in the opening of the third intermediate riser 20. The first expansion actuator is fixedly arranged on the first middle riser opening; the second expansion actuator is fixedly arranged on the third middle riser opening; the third expansion actuator is fixedly arranged on the second middle riser opening; the fourth expansion actuator is fixedly disposed on the fourth intermediate riser opening. The first upper-layer closing action sleeve and the fourth upper-layer closing action sleeve are fixedly arranged on two sides of the first middle vertical plate; the second upper layer closing sleeve and the third upper layer closing sleeve are fixedly arranged on two sides of the third middle vertical plate. The first lower-layer closing action sleeve and the second lower-layer closing action sleeve are fixedly arranged on two sides of the second middle vertical plate; the third lower layer closing sleeve and the fourth lower layer closing sleeve are fixedly arranged on two sides of the fourth middle vertical plate.
The first lower closure sleeve 38, the second lower closure sleeve 39 are welded with the third expansion actuator 44 through the first closure sleeve web 46 and the second closure sleeve web 47 in the second intermediate riser 19 opening; the third lower closure sleeve 40, the fourth lower closure sleeve 41 are welded with the fourth expansion actuator 45 via a first closure sleeve web 46 and a second closure sleeve web 47 in the fourth intermediate riser 21 opening.
The first upper-layer open-close round tube 26 and the second upper-layer open-close round tube 27 are connected to two ends of the inner side of the second side limit plate 12 through end plate bolts; the third upper-layer open-close round tube 28 and the fourth upper-layer open-close round tube 29 are connected to the two ends of the inner side of the fourth side limit plate 14 through end plate bolts; the first lower-layer open-close type circular tube 30 and the fourth lower-layer open-close type circular tube 33 are connected to the two ends of the inner side of the first side limit plate 11 through end plate bolts; the second lower layer open-close type circular tube 31 and the third lower layer open-close type circular tube 32 are connected to two ends of the inner side of the third side limit plate 13 through end plate bolts. And the open-close type round tube is arranged on the corresponding side limit plate through a bolt and can slide.
The first tabletting damper 22 is bolted to the end of the first intermediate riser 18; the second tabletting damper 23 is arranged at the end of the second middle riser 19 through bolts; the third tabletting damper 24 is provided at the end of the third intermediate riser 20 by bolts; the fourth compression damper 25 is provided at the end of the fourth intermediate riser 21 by bolts.
The first side limit plate 11, the second side limit plate 12, the third side limit plate 13 and the fourth side limit plate 14 are welded at the side end of the lower end plate 2. The outer sides of the side limit plates are welded with a first limit plate stiffening rib 15, a second limit plate stiffening rib 16 and a third limit plate stiffening rib 17 which are respectively aligned with the open-close round pipe and the middle vertical plate, and a bolt sliding space is reserved between the first limit plate stiffening rib 15 and the third limit plate stiffening rib 17.
The tabletting damper is formed by overlapping a first spring steel bar 48, a second spring steel bar 49, a third spring steel bar 50 and a fourth spring steel bar 51, and is fixed by a first fixing device 52, a second fixing device 53, a third fixing device 54, a fourth fixing device 55, a fifth fixing device 56 and a sixth fixing device 57.
The first side limit plate 11, the second side limit plate 12, the third side limit plate 13 and the fourth side limit plate 14 are welded around the lower end plate 2 in a counter-clockwise direction in a top view and are ensured in the middle of each side.
The second intermediate riser 19 and the fourth intermediate riser 21 are welded to the midlines of the first intermediate riser 18 and the third intermediate riser 20.
The centroid of the upper end plate 1 is kept aligned with the vertical central axis of the composite intermediate riser.
The first corner corrugated steel plate 3 and the eighth corner corrugated steel plate 10, the second corner corrugated steel plate 4 and the third corner corrugated steel plate 5, the fourth corner corrugated steel plate 6 and the fifth corner corrugated steel plate 7, the sixth corner corrugated steel plate 8 and the seventh corner corrugated steel plate 9 are kept uniform from the positions of the first side limit plate 11, the second side limit plate 12, the third side limit plate 13 and the fourth side limit plate 14 respectively from the side of the upper end plate 1, and the contact parts of the corner corrugated steel plates and the side limit plates fall in the side limit plate thickness area.
The upper edges of the first corner corrugated steel plate 3 and the eighth corner corrugated steel plate 10 are welded on the upper end plate 1; the upper edges of the second angle corrugated steel plate 4 and the third angle corrugated steel plate 5 are welded on the upper end plate 1; the upper edges of the fourth square corrugated steel plate 6 and the fifth square corrugated steel plate 7 are welded on the upper end plate 1; the sixth and seventh corrugated steel plates 8 and 9 are welded to the upper end plate 1 along the upper edges thereof.
The first expanding actuator 42, the first upper closure sleeve 34, the fourth upper closure sleeve 37, the first upper open closure tube 26 and the fourth upper open closure tube 29 are centered on a horizontal line.
The second expanding actuator 43, the second upper closing sleeve 35, the third upper closing sleeve 36, the second upper open-closed circular tube 27 and the third upper open-closed circular tube 28 are centered on a horizontal line.
The third stent 44, the first lower closure sleeve 38, the second lower closure sleeve 39, the first lower open closure tubular 30 and the second lower open closure tubular 31 are centered on a horizontal line.
The center of the fourth expanding actuator 45, the third lower closing sleeve 40, the fourth lower closing sleeve 41, the third lower open-closing circular tube 32 and the fourth lower open-closing circular tube 33 are on the same horizontal line.
The outer sides of the side limit plates are welded with a first limit plate stiffening rib 15, a second limit plate stiffening rib 16 and a third limit plate stiffening rib 17 which are respectively aligned with the center of the open-close round pipe and the middle vertical plate, and the first limit plate stiffening rib 15 and the third limit plate stiffening rib 17 are empty of bolt sliding spaces.
The tabletting damper is composed of four first, second, third and fourth spring steel bars 48, 49, 50 and 51 of the same curvature and different lengths, which are superimposed and aligned with each other, and the spring steel bars are tightly fitted and fixed by a first, second, third, fourth, fifth and sixth fixing means 52, 53, 54, 55, 56 and 57.
The first closure sleeve web 46 and the second closure sleeve web 47 are fixedly disposed on either side of the closure sleeve, respectively, and are fixedly disposed on the central riser opening in conjunction with the expansion actuator.
The first tabletting damper 22 is in contact with the first side limit plate 11 but is not stressed; the second tabletting damper 23 is in contact with the second side limit plate 12 but is not stressed; the third tabletting damper 24 is in contact with the third side limit plate 13 but is not stressed; the fourth compression damper 25 is in contact with the fourth side limiting plate 14 but is not stressed.
The wave-shaped steel plate is formed by bending a flat steel plate, and the wave angle, the wave length and the wave depth can be flexibly defined according to actual conditions.
The damper device provided by the invention has the advantages that after horizontal acting force is applied, the internal components deform in two mutually perpendicular directions, so that energy is absorbed and dissipated, the function of protecting important structural components is sacrificed, the damper device can be quickly replaced after being damaged, the construction is convenient, and the operation is simple.
In summary, the detachable component with lower yield point has stronger plastic deformation and energy consumption capability, the influence on structural performance is within a controllable range, the detachable component is easy to produce and manufacture, convenient to mount and dismount, the material is cheap, the applicability requirement of structure replacement can be met, the connection with the structure is simple, and the structural form of the detachable component can be flexibly designed according to the requirement of actual engineering.
The working mechanism of the soft steel energy dissipation damper with the open and closed circular tube top end is as follows:
By way of example in FIG. 2, is subjected to a horizontal action (parallel to the page or screen)
When a horizontal force is applied to the left, the combined middle riser and upper end plate 1 moves leftwards, and moves with the lower end plate, the second middle riser 19 and the fourth middle riser 21 move and drive the fourth expansion actuator 45 and the third expansion actuator 44 to move leftwards into the fourth lower open-closed circular tube 33 and the first lower open-closed circular tube 30, and the open end of the fourth lower open-closed circular tube is deformed to absorb and consume part of energy (taking the first upper open-closed circular tube 26 and the first upper closed-closed circular tube 34 as an example longitudinally, after the first upper closed-closed circular tube 34 on the combined middle riser contacts the first upper open-closed circular tube 26, the first upper open-closed circular tube 26 is driven to slide leftwards along with the second intermediate riser and the fourth intermediate riser). Meanwhile, the first tabletting damper 22 is contacted with the first side limiting plate 11 to generate extrusion deformation, so that part of energy is absorbed, and the right counter force can be provided to support the whole recovery within the elastic limit range of the first tabletting damper 22; the third compression damper 24 is separated from the third side limiting plate 13. When the upper end plate moves leftwards, the sixth and third corrugated steel plates 8, 5 are in contact with the fourth and second side limiting plates 14, 12 and are pressed to be plastically deformed, so that energy is consumed.
When the horizontal action to the right is then received, the fourth lower layer closing action sleeve 41 and the first lower layer closing action sleeve 38 move to the right along with the combined middle vertical plate to enable the opened and deformed fourth lower layer opened and closed circular tube 33 and the first lower layer opened and closed circular tube 30 to be pushed by friction to be contracted and closed, and the deformation capacity is restored (taking the first upper layer opened and closed circular tube 26 and the first upper layer closing action sleeve 34 on the combined middle vertical plate as an example, the first upper layer closing action sleeve 34 on the combined middle vertical plate contacts the first upper layer opened and closed circular tube 26 longitudinally and then drives the first upper layer opened and closed circular tube 26 to slide to the right). At the same time, the return deformation of the first compression damper 22 can provide a rightward reaction force to support the overall return. The second middle riser 19 and the fourth middle riser 21 move and drive the third expansion actuator 44 and the fourth expansion actuator 45 to move rightward into the third lower open and closed circular tube 32 and the second lower open and closed circular tube 31, and the open ends of the third and fourth expansion actuators are deformed to absorb and consume part of energy. The third tabletting damper 24 is contacted with the third side limit plate 13 to generate extrusion deformation, so that part of energy is absorbed, and a rightward counter force can be provided to support the whole recovery in the elastic limit range of the third tabletting damper 24; the first compression damper 22 is separated from the first side limit plate 11. When the upper end plate moves rightward, the seventh corner corrugated steel plate 9 and the second corner corrugated steel plate 4 are in contact with the fourth side limit plate 14 and the second side limit plate 12 and are extruded to generate plastic deformation, so that energy is consumed. The cycle is repeated in this way.
The orthogonal direction works similarly when acted upon.
From the above, the soft steel energy-consuming damper with the open and closed top end of the circular tube can be suitable for the situation that the structure is subjected to a large horizontal acting force, and has the capability of being replaced after being damaged.
The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, one skilled in the art may make modifications and equivalents to the specific embodiments of the present invention, and any modifications and equivalents not departing from the spirit and scope of the present invention are within the scope of the claims of the present invention.
Claims (9)
1. The open closed type mild steel energy dissipation damper with the round pipe top end is characterized by comprising an upper end plate (1), a lower end plate (2), a corner corrugated steel plate, side limit plates, a middle vertical plate, a tabletting damper and an energy dissipation cylinder assembly;
The middle vertical plate is arranged between the upper end plate (1) and the lower end plate (2), the upper end and the lower end of the middle vertical plate are respectively fixedly connected with the upper end plate (1) and the lower end plate (2), and the middle vertical plate is in a cross shape; a side limit plate is fixedly arranged on the lower end plate (2) at the opposite position of each end part of the middle vertical plate; a tabletting damper is arranged between each end part of the middle vertical plate and the side limit plate opposite to the middle vertical plate, the tabletting damper is arched, two ends of the tabletting damper are connected with the end parts of the middle vertical plate, and the top of the tabletting damper is in contact with the side limit plate;
Two energy consumption barrel assemblies are connected between the two side limit plates at opposite positions, one energy consumption barrel assembly penetrates through one side of the middle vertical plate, which is parallel to the two side limit plates, the other energy consumption barrel assembly penetrates through the other side of the middle vertical plate, which is parallel to the two side limit plates, the two energy consumption barrel assemblies are symmetrical with respect to the side of the middle vertical plate, which is perpendicular to the two side limit plates, and the middle vertical plate is provided with a hole for the energy consumption barrel assembly to penetrate through;
The energy consumption cylinder assembly comprises an expansion actuator, 2 closing action sleeves, 2 closing sleeve connecting plates and 2 open closing circular tubes, wherein inclined chamfers are arranged at the outer edges of two ends of the expansion actuator, the two ends of the expansion actuator are symmetrically and coaxially provided with the closing action sleeves, the expansion actuator and the closing action sleeves are fixedly connected with a middle vertical plate through the closing sleeve connecting plates, an inner cavity of each closing action sleeve is sleeved with an open closing circular tube, a plurality of longitudinal notches are uniformly distributed at one end of the open closing circular tube in the circumferential direction, the end of the open closing circular tube is positioned in the closing action sleeve, and the inner diameter of the end of the open closing circular tube is smaller than the outer diameter of the expansion actuator and not smaller than the diameter of the inclined chamfers of the expansion actuator; the other end of the open-close type circular tube is connected with a side limit plate;
A corner corrugated steel plate is arranged between the adjacent side limit plates, two sides of the corner corrugated steel plate are respectively contacted with the upper edges of the adjacent side limit plates, the tops of all the corner corrugated steel plates are fixedly connected with the upper end plate (1), and a preset distance is reserved between the lower ends of the corner corrugated steel plates and the lower end plate (2);
the upper end plate (1) and the lower end plate (2) are of rectangular structures and are parallel to corresponding sides, the cross axle center of the middle vertical plate is overlapped with the central shafts of the upper end plate (1) and the lower end plate (2), the sides of the middle vertical plate are parallel to the plane symmetry axes of the upper end plate (1) and the lower end plate (2), and the open closed type soft steel energy dissipation damper with the top end of the circular tube is of a symmetrical structure relative to the sides of the middle vertical plate;
when the upper end plate and the structure are horizontally displaced, one end of the open-close circular tube provided with a notch moves axially and is sleeved outside the expansion actuator, the expansion actuator expands the end of the open-close circular tube provided with the notch, plastic deformation is generated to consume part of energy, and when the upper end plate is displaced in the opposite direction, the expanded open-close circular tube is restored under the action of the closing action sleeve.
2. The open-closed type mild steel energy dissipation damper with the circular tube top end according to claim 1, wherein a limiting plate stiffening rib is further arranged between the side limiting plate and the lower end plate (2).
3. The soft steel energy dissipation damper with the open top and the closed top of the circular tube according to claim 1, wherein the tabletting damper is a plate spring formed by overlapping and combining a plurality of spring steel bars.
4. The open-top closed type mild steel energy dissipation damper with the circular tube according to claim 1, wherein two ends of the tabletting damper are connected with the end parts of the middle vertical plate through rotating shafts, and the rotating shafts are perpendicular to the end parts of the middle vertical plate.
5. The soft steel energy consumption damper with the open top end of the circular tube is characterized in that the expansion actuator is of a cylindrical structure, the middle part of the expansion actuator is a section of cylindrical ring, two ends of the cylindrical ring are of circular structures in a circular table shape, and the closed sleeve connecting plate is fixedly connected with the middle part of the expansion actuator.
6. The open-closed type mild steel energy dissipation damper with the top end of the circular tube according to claim 1, wherein the open-closed circular tube is a section of circular ring, the inner diameter of the open-closed circular tube is smaller than the outer diameter of the expanding actuator and larger than the inner diameter of the expanding actuator, and the outer wall of the open-closed circular tube is fixedly connected with the closed sleeve connecting plate.
7. The soft steel energy consumption damper with the open and closed top end of the circular tube according to claim 1, wherein the open and closed circular tube is connected with the side limit plate through a bolt, a hole in the side limit plate for the bolt to pass through is a long hole in the horizontal direction, and the open and closed circular tube and the side limit plate can slide relatively along the long hole at the joint of the bolt.
8. The open-closed type mild steel energy consumption damper with the circular tube top end according to claim 1, wherein two corner corrugated steel plates with the same shape are connected between adjacent side limit plates, each corner corrugated steel plate comprises a wave crest and a wave trough, the two corner corrugated steel plates are connected into a convex structure, the convex parts of the convex structure face to the four corners of the upper end plate (1), and the sides of the convex structure are connected with the adjacent side limit plates.
9. The open-closed type mild steel energy dissipation damper with the circular tube top end according to claim 1, wherein the upper end and the lower end of the middle vertical plate are respectively welded with the upper end plate (1) and the lower end plate (2), the lower end plate (2) is welded with the side limit plate, the expanding action device is welded with the closed sleeve connecting plate, the closed action sleeve is welded with the closed sleeve connecting plate, the closed sleeve connecting plate is welded with the middle vertical plate, the contact part of the corner corrugated steel plate and the side limit plate falls in the thickness area of the side limit plate, and the corner corrugated steel plate is welded with the upper end plate (1).
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101238265A (en) * | 2005-05-24 | 2008-08-06 | 杰弗里·约翰·汤普森 | Energy-absorbing and force-limiting friction coupling |
| CN107816129A (en) * | 2017-11-28 | 2018-03-20 | 东南大学 | The power consumption sleeve and its installation, method of work of a kind of prestressing force assembling type node |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203247993U (en) * | 2013-05-27 | 2013-10-23 | 厦门倍杰特科技有限公司 | Damper |
| CN207647273U (en) * | 2017-12-19 | 2018-07-24 | 西安建筑科技大学 | A kind of replaceable arc mild steel damper of disposed thread cylinder |
| CN112854510B (en) * | 2021-01-11 | 2022-03-08 | 西安建筑科技大学 | Viscous shear type damper with replaceable steel inserting plate |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101238265A (en) * | 2005-05-24 | 2008-08-06 | 杰弗里·约翰·汤普森 | Energy-absorbing and force-limiting friction coupling |
| CN107816129A (en) * | 2017-11-28 | 2018-03-20 | 东南大学 | The power consumption sleeve and its installation, method of work of a kind of prestressing force assembling type node |
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