CN112012547A - Viscoelastic self-resetting support - Google Patents
Viscoelastic self-resetting support Download PDFInfo
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- CN112012547A CN112012547A CN202010550984.6A CN202010550984A CN112012547A CN 112012547 A CN112012547 A CN 112012547A CN 202010550984 A CN202010550984 A CN 202010550984A CN 112012547 A CN112012547 A CN 112012547A
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- connecting rod
- end connecting
- viscoelastic damper
- guide
- side plates
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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
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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
Abstract
Viscoelasticity is from restoring to throne and is supported, belongs to building structure antidetonation field, including direction steel pipe, guide bar, tip clamp plate, outer tip connecting rod, interior tip connecting rod, ring spring, end connection sleeve, splice plate, viscoelasticity attenuator angle iron and viscoelasticity attenuator slot. The ring spring is connected through the guide rod and installed in the guide steel pipe, the viscoelastic dampers at two ends are fixed through the viscoelastic damper connecting angle steel and the slot, the size of the outer end connecting rod and the size of the connecting splint which are required are configured at two ends according to required connecting conditions, and the speed-related energy consumption-self-resetting function integrated support can enable the ring spring to be compressed and the viscoelastic damper to generate shear deformation under the tension and compression states. The support has the characteristics of high stress, self-resetting and energy consumption, can provide effective energy consumption and reduce the residual deformation of the structure to the maximum extent under the action of an earthquake, and ensures that the structure has reliable safety and good repairability after the earthquake.
Description
Technical Field
The application belongs to the technical field of structural engineering earthquake resistance, and relates to a speed-related energy consumption-self-resetting function integrated support, in particular to a structural anti-side support with high stress capacity, self-resetting capacity and energy consumption capacity.
Background
The frequent occurrence of the near-fault earthquake and the high-strength earthquake puts new requirements on the structural performance, the stress of the structure is concentrated, the energy consumption requirement is high, the deformation requirement is high under the series of earthquakes, the excessive residual deformation can occur after the earthquake, the use and the repair of the structure after the earthquake are influenced, the damage and the collapse risk are further increased under the aftershock, and the life and property safety is threatened. The seismic control method commonly used at present is to arrange different types of supports or dampers in the structure, wherein buckling restrained supports, viscoelastic dampers, viscous dampers and the like are more common. Such supports or dampers can effectively consume energy to a certain extent and reduce the peak value deformation of the structure, but the residual deformation after the earthquake is still large, which is not beneficial to the continuous use or repair of the structure. In order to reduce the residual deformation of the structure after earthquake, a self-resetting support or node with a prestressed tendon or a shape memory alloy element is adopted, but the energy consumption capability of the self-resetting component is greatly weakened, and the peak response, including deformation and layer acceleration, is further increased compared with the traditional component. In summary, both the conventional energy dissipation member and the self-resetting member cannot have the two characteristics of energy dissipation and self-resetting, so that the conventional energy dissipation member and the self-resetting member have defects and cannot meet the seismic requirement under the current complex conditions.
Disclosure of Invention
The utility model aims at overcoming prior art's defect, provide a speed correlation type power consumption-from integrated support of reset function, have high bearing capacity concurrently, power consumption ability and from the reset ability, utilize the ring spring that has high strength, high restoring force to provide from the reset and partial power consumption, the main power consumption of different degrees is provided to the cooperation viscoelastic damper under different load frequencies, make ring spring and viscoelastic damper coordinate the deformation through reasonable structure, common atress, the best antidetonation effect of performance.
In order to achieve the purpose, the technical scheme of the application is as follows:
a speed-related energy dissipation-self-resetting function integrated support comprises a guide steel pipe, a guide rod, an end pressing plate, an outer end connecting rod, an inner end connecting rod, a ring spring, an end connecting sleeve, a connecting clamping plate, a viscoelastic damper connecting angle steel and a viscoelastic damper slot;
the guide rod is arranged in the guide steel pipe, threads are arranged at two ends of the guide rod, the guide rod penetrates through a central hole of the ring spring to perform central positioning on the ring spring, and the ring springs are stacked and extruded to form a whole; the end pressing plates are arranged at the end parts of the two sides of the ring spring and are attached, and the center holes of the end pressing plates penetrate through the guide rods and are kept flush with the inner side edges of the guide steel pipes;
the end part connecting sleeve is connected with the guide steel pipe through the bolt holes preset on the periphery, and the inner edge of one side, which is in contact with the guide steel pipe, is attached to the end part pressing plate; the outer end connecting rod and the inner end connecting rod are respectively positioned at two sides of the guide rod, the preset threads rotate inwards to enable the end face to be attached to the end pressing plate and extrude inwards so as to apply pre-pressure to the ring spring, and after the outer end connecting rod, the inner end connecting rod and the guide rod are connected, the viscoelastic damper slots which are welded and installed at two sides of the guide rod are aligned with the reserved sliding grooves on the end connecting sleeve;
the viscoelastic damper is installed on the end connecting sleeves at two ends, connected with the end connecting sleeves through viscoelastic damper connecting angle steel and inserted into the viscoelastic damper slots.
Further, glutinous elastic damper includes outer panel, interior plate and glutinous elastic material, and the outer panel is provided with two, and both sides respectively set up an outer panel about the interior plate, and the outer panel is opened there is the connecting bolt hole, and the width of interior plate is greater than the width of outer panel, one side and two outer panel parallel and level of interior plate, outside the opposite side extended to the outer panel, set up glutinous elastic material between outer panel and the interior plate simultaneously.
The front side and the rear side of the left end and the right end of the end connecting sleeve are both provided with sliding grooves, corresponding to the positions of the sliding grooves, viscoelastic damper slots are welded on the outer end connecting rod and the inner end connecting rod, and an inner side plate of the viscoelastic damper is inserted into the viscoelastic damper slots on the outer end connecting rod and the inner end connecting rod through the sliding grooves of the end connecting sleeve;
connecting bolt holes are formed in the two outer side plates of the viscoelastic damper, connecting bolt holes are formed in the end connecting sleeve, and the outer side plates of the viscoelastic damper are connected to the end connecting sleeve through viscoelastic damper connecting angle steel.
Furthermore, the outer end connecting rod consists of an outer end connecting rod end and an outer end connecting rod body, the inner end connecting rod consists of an inner end connecting rod end and an inner end connecting rod body, the outer end connecting rod end and the inner end connecting rod end are in a cone frustum shape, an internal thread is arranged in the center, and the length of an internal thread area is determined jointly according to the extending length of the guide rod and the pre-pressure required to be applied to the ring spring; the two sides of the outer end connecting rod body and the inner end connecting rod body are flat, and the viscoelastic damper slots are connected to the two sides through welding.
Furthermore, the end pressing plate is flush with the inner side edge of the guide steel pipe, a round hole with the diameter larger than that of the guide rod is formed in the middle of the end pressing plate, the diameter of the round hole is smaller than that of the outer end connecting rod end and that of the inner end connecting rod end, the guide rod can move freely through the round hole of the end pressing plate, and the diameters of the outer end connecting rod end and the inner end connecting rod end are larger than that of the round hole, so that the end pressing plate can.
Furthermore, outer tip connecting rod one side accessible outer tip connecting rod is direct to be connected with the structure, and the splint is connected to the tip connecting sleeve through the welded mode to the opposite side, and the extension board can be connected with the structure.
Furthermore, the ring springs are composed of three parts, namely a half outer ring, an outer ring and an inner ring, round holes are formed in the middles of the three parts, the side faces of the three parts are cut into inclined planes, the ring springs are connected in series in the support in a guide rod positioning and stacking mode, and pre-pressure is applied when the ring springs are installed through end pressing plates; the number of the ring springs can be determined according to actual requirements and supporting length. Due to the adoption of the technical scheme, the method has the following advantages and beneficial effects:
this application has used ring spring and viscoelastic damper simultaneously in single support for the support has considerable power consumption ability when providing from the reset ability.
Viscoelastic damper provides the power consumption and the restoring force of different degrees under different load frequencies in this application, can arouse bigger power consumption and restoring force when receiving the outer load of higher frequency, and the deformation is resumeed after the outer load is removed, does not influence the shake back deformation recovery of structure.
This application extends the mode of connecting through both ends rational construction and guide bar, turns into the single pressurized state of ring spring and viscoelastic damper shear deformation state with the tension, the pressurized state of support, has guaranteed to support and has drawn the two-way major function that can both exert two kinds of core members of pressure.
The ring spring outer ring in the application can be made of fine steel or shape memory alloy, meets the requirements of different performances and cost, and can also reach the set performance target by adjusting the number and parameters such as the thickness, the width and the area of a single ring spring.
The support of this application can be assembled at the scene completely, and all components homoenergetic are prefabricated in the mill, and the flow is assembled simply at the scene.
Drawings
Fig. 1 is a front view of a speed-dependent energy-consuming self-resetting function integrated support provided in an embodiment of the present application.
Fig. 2 is a top view of an integrated support with speed-dependent energy dissipation and self-resetting functions provided in an embodiment of the present application.
Fig. 3 is a left side view of an integrated support with speed-dependent energy consumption and self-resetting functions provided in an embodiment of the present application.
Fig. 4 is a right side view of an integrated support with speed-dependent energy dissipation and self-resetting functions provided in an embodiment of the present application.
Fig. 5 is a cross-sectional view of the speed-dependent dissipative-self-resetting functional integrated brace along a-a of fig. 2.
Fig. 6 is a cross-sectional view of the speed-dependent energy dissipating-self-resetting function integrated brace of fig. 2 taken along B-B.
Fig. 7a is a front view of a viscoelastic damper provided in an example of the present application.
Fig. 7b is a side view of a viscoelastic damper provided in accordance with an example of the present application.
Fig. 8a is a front view of a ring spring provided in an example of the present application.
Fig. 8b is a side view of a ring spring provided in an example of the present application.
Fig. 8c is a disassembled schematic view of a ring spring provided in the example of the present application.
Fig. 9a is a front view of an end connection sleeve provided in an example of the present application.
Figure 9b is a side view of an end connection sleeve provided in an example of the present application.
Fig. 10 is a schematic diagram of the original state of the action mechanism of a speed-dependent energy-consuming self-resetting function integrated support provided by an example of the application.
Fig. 10-1a is a front view in tension of a speed-dependent dissipative-self-restoring integrated brace according to an embodiment of the present application.
Fig. 10-1b is a cross-sectional view along a-a of a tension deformation of a speed-dependent dissipative-self-resetting functionally integrated brace according to an example of the present application.
Fig. 10-1c is a schematic drawing of the tension mechanism of a speed-dependent energy-consuming-self-resetting function integrated support provided by the embodiment of the application.
Fig. 10-2a is a front view of a velocity-dependent energy-dissipating self-resetting function integrated brace in a deformed state.
Fig. 10-2b is a cross-sectional view along a-a of a velocity-dependent energy dissipating-self-resetting functionally integrated brace according to an embodiment of the present application.
Fig. 10-2c is a schematic view of the mechanism of the pressure action of a speed-dependent energy-consuming-self-resetting function integrated support provided by the embodiment of the application.
Reference numbers in the figures:
1-outer end connecting rod, 101-outer end connecting rod end, 102-outer end connecting rod body, 2-guide steel pipe, 3-glutinous elastic damper, 31-outer panel, 32-inner panel, 33-glutinous elastic material, 34-glutinous elastic damper connecting bolt hole, 4-end connecting sleeve, 41-outside square steel pipe, 42-inside square steel pipe, 5-glutinous elastic damper connecting angle steel, 6-connecting clamp plate, 7-ring spring, 71-half outer ring, 72-outer ring, 73-inner ring, 8-inner end connecting rod, 81-inner end connecting rod end, 82-inner end connecting rod body, 9-guide rod, 10-end pressing plate, 11-glutinous elastic damper slot.
Detailed Description
The technical solutions provided in the present application will be further described with reference to the following specific embodiments and accompanying drawings. The advantages and features of the present application will become more apparent in conjunction with the following description.
As shown in fig. 1 to 9, a speed-related energy-consuming self-resetting function integrated support comprises a structural part, a guide steel pipe 2, an end pressing plate 10, an end connecting sleeve 4, a guide rod 9, an outer end connecting rod 1, an inner end connecting rod 8, a functional part, a viscoelastic damper 3, a ring spring 7, a connecting part, a connecting angle steel 5, a connecting clamping plate 6 and a viscoelastic damper slot 11.
The guide rod 9 is arranged in the guide steel pipe 2, the guide rod and the guide steel pipe keep the axis, the ring springs 7 are sequentially stacked and then sleeved in the guide rod 9 through a central round hole, the axial space in the guide steel pipe 2 is filled, and the distance between the two sides of the guide steel pipe 2 and the edge of the port is the thickness of the end pressing plate 10; the end pressing plate 10 is sleeved into the guide rod 9 through a central circular hole, the edge of the outer contour is flush with the edge of the inner contour of the port of the guide steel pipe 2, the end pressing plate 10 and the guide steel pipe 2 can move axially relative to each other in an oil applying or smoothing mode, and the inner side surface of the end pressing plate 10 is attached to the ring spring 7.
Connecting bolt holes are formed in the peripheries of the corresponding connecting parts of the end connecting sleeve 4 and the guide steel pipe 2, the bolt holes of the end connecting sleeve 4 do not contain internal threads, and the bolt holes of the guide steel pipe 2 contain internal threads; the inner surface of the end connecting sleeve 4, which is in contact with the guide steel pipe 2, is in direct contact and attached with the end surface of the guide steel pipe 2 and the outer surface of the end pressing plate 10, and is used for limiting the displacement of the end pressing plate 10 at the other end when the end pressing plate 10 at one side compresses the ring spring 7; the outer end connecting rod 1 and the inner end connecting rod 8 are located on two sides of the guide rod 9 and inside the end sleeve 4 and are connected with the guide rod 9 in a threaded connection mode, pre-pressure can be applied to the ring spring in a mode of fixing the connecting rod on one side and rotating the connecting rod on the other side inwards during installation, and the viscoelastic damper slots 11 welded on the outer end connecting rod 1 and the inner end connecting rod 8 are aligned with the preset sliding grooves of the end connecting sleeve 4 when connection is completed.
The viscoelastic dampers 3 are arranged on end connecting sleeves 4 at two ends, two on two sides respectively, and the total number is four; as shown in fig. 7, the viscoelastic damper includes an outer plate 31, an inner plate 32 and viscoelastic material 33, the outer plate 31 is provided in two pieces, the inner plate 32 is provided with an outer plate 31 on each of the upper and lower sides, the outer plate 31 is provided with connecting bolt holes 34, the width of the inner plate 32 is greater than that of the outer plate 31, one side of the inner plate 32 is flush with the two outer plates 31, the other side extends out of the outer plate 31, and the viscoelastic material 33 is provided between the outer plate 31 and the inner plate 32; the front side and the rear side of the left end and the right end of the end connecting sleeve 4 are both provided with sliding grooves, the groove width of each sliding groove is slightly larger than the thickness of the inner side plate 32 of each viscoelastic damper 3, corresponding to the position of each sliding groove, each of the outer end connecting rod 1 and the inner end connecting rod 8 is welded with a viscoelastic damper slot 11, the inner side plate 32 of each viscoelastic damper 3 is inserted into the viscoelastic damper slots 11 on the outer end connecting rod 1 and the inner end connecting rod 8 through the sliding grooves of the end connecting sleeve 4, and the two outer side plates 31 are connected with the outer side wall of the end connecting sleeve 4 through viscoelastic damper connecting angle steel 5; when the outer end connecting rod 1 and the inner end connecting rod 8 and the end connecting sleeve 4 are displaced relatively, the viscoelastic damper slots 11 welded on the outer end connecting rod 1 and the inner end connecting rod 8 drive the inner side plate 32 of the viscoelastic damper 3 to move, and the outer side plate 31 of the viscoelastic damper 3 is fixed by the end connecting sleeve 4, so that the viscoelastic damper 3 is subjected to shear deformation.
The ring spring 7 has two half outer rings 71, two outer rings 72, and two inner rings 73 as constituent parts in one unit, and the stacking sequence is shown in fig. 8; the ring spring 7 is adopted in the support, a plurality of units are required to be used for serial connection, the expansion principle is that the outer rings 71 at the two end halves are kept unchanged, and the combination of the outer ring 72 and the inner ring 73 is added to the middle part of the ring spring 7, so that the deformation amount and the output magnitude of the ring spring 7 can be controlled through the size and the number; end pressing plate 10 is attached to the outermost half outer rings 71 at two ends of ring spring 7, when outer end connecting rod 1 and inner end connecting rod 8 and guide rod 9 move axially, pressure is generated on end pressing plate 10 through outer end connecting rod end 101 or inner end connecting rod end 81, pressure is transmitted to ring spring 7 through end pressing plate 10, ring spring 7 is compressed, and during compression, because the design strength of half outer rings 71 and inner rings 73 is high, deformation can be ignored, and outer ring 72 generates radial and axial deformation in an outward expansion mode.
The outer end connecting rod 1 and the inner end connecting rod 8 are both composed of two parts, the end parts are the same, the rod body parts are different, and the two parts can be connected by welding during processing, and can also be integrally processed; the end 101 of the outer end connecting rod and the end 81 of the inner end connecting rod are in the shape of a truncated cone, the side with the larger diameter is attached to the end pressing plate 10, the side with the smaller diameter is connected with the rod body, and internal threads are formed inside the side with the larger diameter and are used for being connected with external threads at two ends of the guide rod 9 in a matching mode; the outer end connecting rod body 102 is a flat T-shaped plate, the outer side of which has a larger area and is used for structural connection, the inner side of which has a slender plate area and is used for welding the viscoelastic damper slot 11, and the inner end connecting rod body 82 only has a slender plate area and is used for welding the viscoelastic damper slot 11.
A circular hole is formed in the center of the end pressing plate 10, the diameter of the circular hole is slightly larger than that of the guide rod 9, and the guide rod 9 can freely move axially through the central circular hole of the end pressing plate 10; the diameters of the outer end connecting rod end 101 and the inner end connecting rod end 81 are larger than the diameter of the central circular hole of the end pressing plate 10, so that the axial movement of the end pressing plate 10 can be pushed.
Fig. 9 further illustrates the detailed construction of the end connection sleeve 4; the end connecting sleeve 4 is composed of an outer side square steel tube 41 and an inner side square steel tube 42; the two sides of the outer side square steel tube 41 are provided with sliding grooves and connecting bolt holes, one side of the inner side square steel tube 42 connected with the outer side square steel tube 41 is sealed with a cover plate, the center of the cover plate is provided with a square hole, the size of the square hole is larger than the diameters of the end 101 of the outer end connecting rod and the end 81 of the inner end connecting rod but smaller than the size of the end pressing plate 10, and the end pressing plate 10 is limited to move outwards while the axial movement of the outer end connecting rod 1 and the inner end connecting rod 8; the outer wall around the square steel pipe 42 of inboard side is opened and is had the connecting bolt hole and be used for with direction steel pipe 2 and carry out the connection.
The speed-related energy consumption-self-resetting function integrated support provided by the application is installed and implemented as follows:
(1) firstly, the parts of the ring spring 7 are stacked in sequence and penetrate into the guide rod 9, so that the lengths of the free ends on the two sides of the guide rod 9 are kept consistent, the guide rod 9 and the ring spring 7 are placed into the guide steel pipe 2, so that the axes of the guide rod 9 and the guide steel pipe 2 are consistent, namely, the gaps on the periphery inside the guide steel pipe 2 are equal in width.
(2) Secondly, the end pressing plate 10 is sleeved in along the guide rod 9 through the central circular hole, so that the inner side surface of the end pressing plate is attached to the ring spring 7, the end pressing plate 10 on one side of the outer end connecting rod 1 is pushed, the outer surface of the end pressing plate is flush with the end surface of the guide steel pipe 2, and the end pressing plate 10 on the other side is positioned outside the end of the guide steel pipe 2.
(3) Then, the outer end connecting rod 1 is installed on one side of the outer end connecting rod 1 at the end part of the guide rod 9, and the end connecting sleeve 4 is sleeved in the outer end connecting rod 1 to complete the bolt connection between the end connecting sleeve and the guide steel pipe 2; the outer end connecting rod 1 is rotated inwards until the surface of the end head 101 of the outer end connecting rod is attached to the end pressing plate 10, and the viscoelastic damper slots 11 on the two sides of the outer end connecting rod body 102 are aligned with the sliding grooves on the two sides of the end connecting sleeve 4;
(4) then, fixing the end connecting sleeve 4 at one side of the outer end connecting rod 1, installing the inner end connecting rod 8 at the other side of the guide rod 9, rotating inwards to push the end pressing plate 10, compressing the ring spring 7 until the outer surface of the end pressing plate 10 is flush with the surface of the end of the guide steel pipe 2, and finishing the application of the pre-pressure of the ring spring 7; the end connecting sleeve 4 is sleeved in, the bolt connection with the guide steel pipe 2 is completed, and at the moment, the viscoelastic damper slots 11 on the two sides of the inner end connecting rod body 82 are aligned with the sliding grooves on the two sides of the end connecting sleeve 4.
(5) And finally, inserting the viscoelastic damper 3 into the sliding grooves of the end connecting sleeves 4 at two sides, and connecting the viscoelastic damper with the end connecting sleeves 4 through the viscoelastic damper connecting angle steel 5 to finish installation.
All parts are processed in a factory, welding of the outer end connecting rod 1, the inner end connecting rod 8 and the viscoelastic damper slot 11 is completed in the factory, and welding connection of the connecting clamp plate 6 and the end connecting sleeve 4 is also completed in the factory.
Referring to fig. 10, fig. 10-1-a to fig. 10-1-c, and fig. 10-2-a to fig. 10-2-c, there are respectively a schematic drawing of tensile deformation and a schematic drawing of compressive deformation of a speed-dependent dissipative-self-resetting functional integrated support according to an embodiment of the present application.
As shown in fig. 10, the original state is schematically illustrated.
As shown in fig. 10-1-a to 10-1-c:
assuming that the connecting clamp plate 6 is connected and fixed with the structure, the connecting sleeves 4 at the two sides of the connecting clamp plate and the guide steel pipe 2 are fixed, the speed-related energy consumption-self-resetting function integrated support obtains a pulling force effect, the outer end connecting rod 1 is pulled outwards to perform axial displacement, the guide rod 9 and the inner end connecting rod 8 are integrated with the outer end connecting rod 1 and are driven to perform axial displacement, the end head of the inner end connecting rod 8 can push the end pressing plate 10 to be compressed inwards, the end pressing plate 10 at the other side is limited by the end connecting sleeve 4 to perform outward displacement, and therefore the ring spring 7 in the middle of the end pressing plates 10 at the two sides is compressed; meanwhile, as the viscoelastic damper slots 11 welded on the outer end connecting rod 1 and the inner end connecting rod 8 axially move to drive the inner side plate 32 of the viscoelastic damper 3 to move, and the outer side plate 31 is fixedly connected with the end connecting sleeve 4, the viscoelastic damper 3 is subjected to shear deformation to provide energy consumption;
when unloaded, ring spring 7 provides sufficient restoring force to return the speed-dependent dissipative-self-resetting functional integrated brace to the original position (see fig. 10).
As shown in fig. 10-2-a to 10-2-c:
assuming that the connecting clamp plate 6 is connected and fixed with the structure, the connecting sleeves 4 at the two sides of the connecting clamp plate and the guide steel pipe 2 are fixed, the speed-related energy consumption-self-resetting function integrated support obtains a pressure effect, the outer end connecting rod 1 is pressed inwards to perform axial displacement, the guide rod 9 and the inner end connecting rod 8 are integrated with the outer end connecting rod 1 and are driven to perform axial displacement, the end head of the outer end connecting rod 8 pushes the end pressing plate 10 to be compressed inwards, the end pressing plate 10 at the other side is limited by the end connecting sleeve 4 to perform outward displacement, and therefore the ring spring 7 in the middle of the end pressing plates 10 at the two sides is compressed; meanwhile, as the viscoelastic damper slots 11 welded on the outer end connecting rod 1 and the inner end connecting rod 8 axially move to drive the inner side plate 32 of the viscoelastic damper 3 to move, and the outer side plate 31 is fixedly connected with the end connecting sleeve 4, the viscoelastic damper 3 is subjected to shear deformation to provide energy consumption;
when unloaded, ring spring 7 provides sufficient restoring force to return the speed-dependent dissipative-self-resetting functional integrated brace to the original position (see fig. 10).
In summary, the speed-related energy consumption-self-reset function integrated support can compress the ring spring 7 when being in a tension or compression state, provides enough rigidity and partial energy consumption, namely can play the role of the ring spring 7 under the bidirectional stress condition, simultaneously enables the viscoelastic damper 3 to generate shear deformation for energy consumption under the two stress conditions, combines the advantages of two functional members, provides enough strength, rigidity, energy consumption and restoring force after unloading, forms an effective coupling system, and plays a good role in structural seismic resistance.
The above description is only illustrative of the preferred embodiments of the present application and is not intended to limit the scope of the present application in any way. Any changes or modifications made by those skilled in the art based on the above disclosure should be considered as equivalent effective embodiments, and all the changes or modifications should fall within the protection scope of the technical solution of the present application.
Claims (5)
1. A speed-related energy consumption-self-reset function integrated support is characterized in that: the damping device comprises a guide steel pipe (2), a guide rod (9), an end pressing plate (10), an outer end connecting rod (1), an inner end connecting rod (8), a ring spring (7), an end connecting sleeve (4), a connecting clamping plate (6), a viscoelastic damper (3), viscoelastic damper connecting angle steel (5) and a viscoelastic damper slot (11);
the guide rod (9) is arranged in the guide steel pipe (2), threads are arranged at two ends of the guide rod, the guide rod (9) penetrates through a central hole of the ring spring (7) to perform central positioning on the ring spring (7), and the ring springs (7) are stacked and extruded to form a whole; the end pressing plates (10) are mounted at the end parts of the two sides of the ring spring (7) and are attached, and the center holes of the end pressing plates (10) penetrate through the guide rods (9) and are kept flush with the inner side edges of the guide steel pipes (2);
the end part connecting sleeve (4) is connected with the guide steel pipe (2) through bolt holes which are preset on the periphery, and the inner edge of one side, which is in contact with the guide steel pipe (2), is attached to the end part pressing plate (10); the outer end connecting rod (1) and the inner end connecting rod (8) are respectively positioned at two sides of the guide rod (9), the preset threads rotate inwards to enable the end face to be attached to the end pressing plate (10) and extrude inwards to apply pre-pressure to the ring spring (7), and after the outer end connecting rod (1) and the inner end connecting rod (8) are connected with the guide rod (9), the viscoelastic damper slots (11) which are welded and installed at two sides of the guide rod (9) are aligned with the reserved sliding grooves on the end connecting sleeve (4);
the viscoelastic damper (3) is arranged on the end connecting sleeves (4) at two ends, is connected with the end connecting sleeves (4) through viscoelastic damper connecting angle steel (5), and is inserted into the viscoelastic damper slots (11);
one side of the outer end connecting rod (1) can be directly connected with the structure through the outer end connecting rod (1), the other side connecting clamp plate (6) is connected to the end connecting sleeve (4) in a welding mode, and the extension plate can be connected with the structure.
2. The integrated speed-dependent energy-consuming-self-resetting functional support according to claim 1, wherein: the viscoelastic damper (3) comprises two outer side plates (31), two inner side plates (32) and viscoelastic materials (33), the two outer side plates (31) are respectively arranged on the upper side and the lower side of the inner side plates (32), the outer side plates (31) are provided with connecting bolt holes (34), the width of the inner side plates (42) is larger than that of the outer side plates (31), one sides of the inner side plates (32) are flush with the two outer side plates (31), the other sides of the inner side plates extend out of the outer side plates (31), and the viscoelastic materials (33) are arranged between the outer side plates (31) and the inner side plates (32);
the front side and the rear side of the left end and the right end of the end connecting sleeve (4) are respectively provided with a sliding chute, corresponding to the positions of the sliding chutes, viscoelastic damper slots (11) are respectively welded on the outer end connecting rod (1) and the inner end connecting rod (8), and an inner side plate (32) of a viscoelastic damper (3) is inserted into the viscoelastic damper slots (11) on the outer end connecting rod (1) and the inner end connecting rod (8) through the sliding chutes of the end connecting sleeve (4);
connecting bolt holes (34) have been all seted up in two outer panels (31) of viscoelastic damper (3), and connecting bolt holes have been seted up in end connection sleeve (4) equally, are connected to end connection sleeve (4) through viscoelastic damper angle connector (5) with outer panel (31) of viscoelastic damper (3).
3. The integrated speed-dependent energy-consuming-self-resetting functional support according to claim 1, wherein: the outer end connecting rod (1) consists of an outer end connecting rod end (101) and an outer end connecting rod body (102), the inner end connecting rod (8) consists of an inner end connecting rod end (81) and an inner end connecting rod body (82), the outer end connecting rod end (101) and the inner end connecting rod end (81) are in a cone frustum shape, and the center of the outer end connecting rod end and the inner end connecting rod end (81) are provided with internal threads; the two sides of the outer end connecting rod body (102) and the inner end connecting rod body (82) are flat, and the viscoelastic damper slot (11) is connected to the two sides through welding.
4. The integrated speed-dependent energy-consuming-self-resetting functional support according to claim 1, wherein: the end pressing plate (10) is flush with the inner side edge of the guide steel pipe (2), a round hole with the diameter larger than that of the guide rod (9) is formed in the middle of the end pressing plate, and the diameter of the round hole is smaller than that of the end (101) of the outer end connecting rod and that of the inner end connecting rod (81).
5. The integrated speed-dependent energy-consuming-self-resetting functional support according to claim 1, wherein: the ring springs (7) are composed of three parts, namely a half outer ring (71), an outer ring (72) and an inner ring (73), round holes are formed in the middles of the three parts, the side faces of the three parts are cut into inclined planes, the ring springs (7) are connected in series in the support in a positioning and stacking mode through the guide rods (9), and pre-pressure is applied through the end pressing plate (10) during installation.
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| CN110685484A (en) * | 2019-09-05 | 2020-01-14 | 同济大学 | Viscoelastic self-resetting support |
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2020
- 2020-06-17 CN CN202010550984.6A patent/CN112012547B/en active Active
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| US20080016794A1 (en) * | 2004-03-03 | 2008-01-24 | Robert Tremblay | Self-Centering Energy Dissipative Brace Apparatus With Tensioning Elements |
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| CN106193747A (en) * | 2016-07-22 | 2016-12-07 | 北京交通大学 | Stacked Self-resetting energy dissipation brace in a kind of assembling |
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