CN108385851B - A kind of tension limit shock isolating pedestal - Google Patents
A kind of tension limit shock isolating pedestal Download PDFInfo
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- CN108385851B CN108385851B CN201810102746.1A CN201810102746A CN108385851B CN 108385851 B CN108385851 B CN 108385851B CN 201810102746 A CN201810102746 A CN 201810102746A CN 108385851 B CN108385851 B CN 108385851B
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- 238000002955 isolation Methods 0.000 claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 29
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- -1 support body Chemical compound 0.000 claims abstract description 8
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- 229910000831 Steel Inorganic materials 0.000 claims description 17
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- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 description 1
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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
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The present invention provides a kind of tension limit shock isolating pedestal, including support body, upper junction plate, lower connecting plate and tension limiting device；Upper junction plate and lower connecting plate are fixed on the upper and lower ends of support body, and the surrounding of support body is respectively arranged with tension limiting device；Tension limiting device includes mutually orthogonal Liang Ge sliding and position limitation mechanism, and Liang Ge sliding and position limitation mechanism is connected by flexible material.The surrounding of support body is arranged in tension limiting device, it can freely be slid along X, Y-axis, the horizontal seismic isolation performance of support body is not influenced, and support body is limited in X, the maximum distortion of Y direction, flexible material bears pulling force of the support body by Z-direction, effectively enhances support Z-direction extensional rigidity.When macroseism occurs, by the way that tension limiting device is arranged, the deformation limit that deforms more than that can effectively avoid support body leads to unstability, while enhancing support Z-direction tensile capacity, improves the stability and safety of shock isolating pedestal.
Description
Technical Field
The invention relates to the technical field of shock insulation, in particular to a tensile limiting shock insulation support.
Background
With the rapid advance of the modernization process and the urbanization of the society, the population tends to be concentrated gradually, the wealth of the society increases rapidly, and the threat of the huge energy carried by the earthquake to the civilization of the human is greater and greater. This forces the engineering anti-seismic personnel to continuously explore and update the structural anti-seismic design theory and the method for preventing and reducing disasters.
Seismic disasters mainly originate from forced vibration of the structure caused by ground motion. The basic principle of shock insulation is that by arranging a shock insulation device, the horizontal rigidity of the structure is reduced, the self-vibration period of the structure is prolonged, and the damping of the structure is increased, so that the seismic response of the structure is effectively reduced.
Shock insulation is an early passive control measure, and a large number of theoretical researches, model tests and actual engineering strong shock observation records show that the shock insulation can greatly reduce the seismic response of an engineering structure. The principle of the seismic isolation technology is that a seismic isolation support is arranged between a structure and the ground or a lower supporting structure, and the vibration period of the structure is prolonged by utilizing the smaller horizontal rigidity of the seismic isolation support, so that the power amplification effect of the seismic action of the structure is reduced. The engineering structure shock isolation system has the following characteristics: load bearing characteristics, seismic isolation characteristics, energy dissipation characteristics, and stability and durability.
The seismic isolation technology is widely applied to multi-storey buildings and medium and small span linear bridges at present, and is gradually popularized and applied to (super) high-rise buildings in recent years. For high-rise buildings with shock insulation of the foundation, a larger overturning moment is generally generated under the action of strong shock, so that the branch seat at the base part bears larger pulling force. According to the building earthquake-resistant design specification, the tensile stress is not suitable to occur during the calculation of the internal force of the rubber support, the maximum value is not more than 1MPa, namely the tensile capacity of the laminated rubber support is weak, and the laminated rubber support is easy to damage when the support bears larger tensile stress. Similarly, in the special-shaped buildings and the bent bridges, the mass center of the upper part of the structure is different from the rigid center, so that the local support can have serious tension phenomenon. In view of the above, the tensile strength of the conventional seismic isolation bearing is a major obstacle to the application of the conventional seismic isolation bearing in seismic isolation of structures such as high-rise buildings, special-shaped buildings, bent bridges and the like.
At present, some tensile structures suitable for rubber supports are proposed by researchers, and corresponding test researches are carried out on part of the tensile structures, so that the reliability of the mechanical properties of the tensile structures is verified. However, the structures also have the problems that the tensile structure obviously affects the horizontal mechanical property of the support body, the vertical height or the horizontal dimension of the support is obviously increased, and the like, which are worth further research and improvement. Although the common shock insulation rubber support can meet the function of horizontal shock insulation, if the shock insulation rubber support is subjected to overlarge horizontal shearing deformation or too large corner, the shock insulation rubber support can be failed and damaged or even a shock insulation structure can topple and collapse.
Disclosure of Invention
The invention provides a tensile limiting shock insulation support to overcome the defects of the traditional shock insulation support.
The invention provides a tensile limiting and shock isolating support which comprises a support body, an upper connecting plate, a lower connecting plate and a tensile limiting device, wherein the support body is provided with a support body; wherein,
the upper connecting plate and the lower connecting plate are respectively fixed at the upper end and the lower end of the support body, and the periphery of the support body is respectively provided with a tensile limiting device;
tensile stop device includes two stop gear that slides of mutual quadrature, two stop gear that slides set up respectively in the upper junction plate with the medial surface of lower connecting plate, two stop gear that slides is connected through flexible material, stop gear that slides is used for adapting to the support body at X, Y deformation of direction, restricts its maximum deformation in X, Y axle direction simultaneously, flexible material is used for bearing the support body receives the pulling force of Z axle direction.
The sliding limiting mechanism comprises a sliding rail, a sliding block and a stop block; one side of the slide rail is fixed on the inner side surface of the upper connecting plate or the lower connecting plate, the other side of the slide rail and the inner side surface of the slide block form a relative sliding surface, the outer side of the slide block is fixedly connected with the flexible material, and two ends of the slide rail are fixedly provided with stop blocks.
Wherein the stoppers are welded or bolted at both ends of the slide rail.
Wherein, the inner side of the sliding block is bonded with a polytetrafluoroethylene thin layer.
The support body is a laminated rubber support, a lead core rubber support or a high-damping rubber support.
Wherein the flexible material is a steel strand.
The steel strand is applied with prestress to offset or reduce the tensile force of external load to the support body.
According to the tensile limiting and shock isolating support, the tensile limiting devices are arranged on the periphery of the support body respectively, and two ends of each tensile limiting device are connected with the upper connecting plate and the lower connecting plate respectively, so that the tensile bearing capacity of the tensile limiting and shock isolating support is enhanced, the vertical tensile force applied to the support body is borne, and the support body is prevented from being damaged by tension. Wherein, tensile stop device sets up around the support body, and can freely slide along X, Y axles, does not influence the horizontal shock insulation performance of support body. Tensile stop device has restricted the deformation of support body in the three direction of X, Y, Z axle, avoids when taking place the macroseism, and the deformation of support body surpasss the deformation limit and leads to the unstability, has effectively strengthened support Z simultaneously to tensile rigidity, has improved the stability and the security of isolation support.
Drawings
FIG. 1 is a front view of a tension limiting isolation bearing provided according to an embodiment of the invention;
FIG. 2 is a schematic diagram illustrating a positional relationship between a holder body and a tension limiting device according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a tension limiting device according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a sliding position limiting mechanism according to an embodiment of the present invention;
FIG. 5 is a front view of a mount body provided in accordance with an embodiment of the present invention in a state of large deformation in the X-axis direction;
FIG. 6 is a left side view of a tension limiting isolation bearing provided in accordance with an embodiment of the present invention;
FIG. 7 is a front view of a mount body provided in accordance with an embodiment of the present invention in a state of large deformation in the Y-axis direction;
in the figure, 1, an upper connecting plate; 2. a slide rail; 3. a slider; 4. a stopper; 5. a support body; 6. a flexible material; 7. a lower connecting plate; 8. a bolt; 9. a sliding limiting mechanism.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are a module embodiment of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a front view of a tensile limiting seismic isolation bearing provided according to an embodiment of the invention, and fig. 2 is a schematic view of a positional relationship between a bearing body 5 and a tensile limiting device provided according to an embodiment of the invention; as shown in fig. 1 and 2, the tensile limiting seismic isolation bearing provided by the embodiment includes a bearing body 5, an upper connecting plate 1, a lower connecting plate 7 and a tensile limiting device; wherein,
the upper connecting plate 1 and the lower connecting plate 7 are fixed at the upper end and the lower end of the support body 5, and tensile limiting devices are respectively arranged on the periphery of the support body 5;
tensile stop device includes two stop gear 9 that slide of mutual quadrature, two stop gear 9 that slides set up respectively in upper junction plate 1 with the medial surface of lower connecting plate 7, two stop gear 9 that slides is connected through flexible material 6, stop gear 9 that slides is used for limiting support body 5 is in X, Y axle direction's maximum deformation, flexible material 6 is used for bearing support body 5 receives the pulling force of Z axle direction.
Specifically, referring to fig. 1, the tensile limiting isolation bearing comprises a bearing body 5, wherein the bearing body 5 is arranged between an upper connecting plate 1 and a lower connecting plate 7, in the embodiment, the upper connecting plate 1 and the lower connecting plate 7 are identical in structure, and the size of the upper connecting plate 1 and the size of the lower connecting plate 7 are larger than that of the bearing body 5. The shock insulation support is a support device arranged for meeting the shock insulation requirement of a structure, a shock insulation layer is additionally arranged between an upper structure and a foundation, a rubber shock insulation support is installed to achieve soft connection with the ground, and through the technology, about 80% of energy of an earthquake can be offset. For the sake of simplicity, the "isolation bearing" is referred to as a "tensile limit isolation bearing" hereinafter.
Referring to fig. 2, tensile limiting devices are respectively arranged around the support body 5, and the upper end and the lower end of each tensile limiting device are respectively connected with the upper connecting plate 1 and the lower connecting plate 7, wherein the tensile limiting devices are used for limiting the deformation of the support body 5 in the three directions of the X, Y, Z axis and enhancing the tensile bearing capacity of the tensile limiting isolation support.
Fig. 3 is a schematic structural diagram of the tensile limiting device according to an embodiment of the present invention, and referring to fig. 3, the tensile limiting device includes two mutually orthogonal sliding limiting mechanisms 9, the two sliding limiting mechanisms 9 are respectively disposed on inner side surfaces of the upper connecting plate 1 and the lower connecting plate 7, and the two sliding limiting mechanisms 9 are connected through a flexible material 6. The two sliding limiting mechanisms 9 are respectively arranged corresponding to the X-axis direction and the Y-axis direction.
According to the building earthquake-resistant design specification, the tensile stress is not suitable to occur during the calculation of the internal force of the rubber support, the maximum value is not more than 1MPa, namely the tensile capacity of the laminated rubber support is weak, and the laminated rubber support is easy to damage when the support bears large tensile stress. The bearing capacity of the flexible material 6 is to ensure that the tensile stress of the horizontal seismic isolation support does not exceed the above-mentioned standard design requirements.
When a strong shock occurs, the support body 5 may be deformed in horizontal shearing, and if the deformation exceeds the deformation limit of the support body 5, the support body 5 may be destabilized. The embodiment limits the maximum deformation of the support body 5 in the X, Y axial direction through the sliding limiting mechanism 9, and avoids the instability caused by overlarge support deformation.
Through connecting flexible material 6 between two stop gear 9 that slide, the tensile bearing capacity of the spacing isolation bearing of reinforcing tensile to bear the pulling force that support body 5 received the Z axle direction.
According to the tensile limiting and shock isolating support provided by the embodiment of the invention, the tensile limiting devices are respectively arranged on the periphery of the support body, and two ends of each tensile limiting device are respectively connected with the upper connecting plate and the lower connecting plate 7, so that the tensile bearing capacity of the tensile limiting and shock isolating support is enhanced, and the support body is prevented from being damaged by tension. Wherein, tensile stop device sets up around the support body, and can freely slide along X, Y directions, does not influence the horizontal shock insulation performance of support body. Tensile stop device has restricted the deformation of support body in the three direction of X, Y, Z axle, avoids when taking place the macroseism, and the deformation of support body surpasss the deformation limit and leads to the unstability, has effectively strengthened support Z simultaneously to tensile rigidity, has improved the stability and the security of isolation support.
Fig. 3 is a schematic structural view of a tensile limiting device provided according to an embodiment of the present invention, and fig. 4 is a schematic structural view of a sliding limiting mechanism 9 provided according to an embodiment of the present invention, as shown in fig. 3 and fig. 4, the sliding limiting mechanism 9 includes a sliding rail 2, a sliding block 3, and a stopper 4; one side of the slide rail 2 is fixed on the upper connecting plate 1 or the lower connecting plate 7, the other side of the slide rail 2 and the inner side surface of the slide block 3 form a relative sliding surface, and the outer side of the slide block 3 is fixedly connected with the flexible material 6. And two ends of the sliding rail 2 are fixed with a stop block 4.
Specifically, referring to fig. 3, the tensile limiting device includes two mutually orthogonal sliding limiting mechanisms 9, and the two sliding limiting mechanisms 9 are respectively fixed on the inner side surfaces of the upper connecting plate 1 and the lower connecting plate 7.
Referring to fig. 4, the sliding limiting mechanism 9 includes a slide rail 2, a slide block 3 and a stopper 4; wherein, the both ends of slide rail 2 are fixed with dog 4, and one side of slide rail 2 is fixed at upper junction plate 1 or lower connecting plate 7 through bolt 8. In this embodiment, the slide rail 2 fixed to the upper connecting plate 1 and the slide rail 2 fixed to the lower connecting plate 7 are orthogonal to each other, thereby forming the slide rail 2 enclosed in the X-axis and Y-axis directions.
The inner side surface of the sliding block 3 and one surface of the sliding rail 2 form a relative sliding surface, and each sliding rail 2 corresponds to one sliding block 3. When an earthquake occurs, the support body 5 is subjected to horizontal shearing deformation, and the sliding blocks 3 on the periphery of the support body 5 slide along the sliding rails 2 at the moment. The both ends of slide rail 2 are fixed with dog 4, and when slider 3 slided to the both ends of slide rail 2, slider 3 was blockked by dog 4 to with the biggest horizontal deformation restriction of support body 5 in the within range that can bear, avoid support body 5 to take place the unstability.
Further, the orthogonal sliding limiting mechanism 9 can adapt to the displacement of the support body in any horizontal direction, does not affect the horizontal shock insulation performance of the support body, and limits the maximum deformation of the support body 5 in any horizontal direction. For example, the displacement limiting mechanism can simultaneously deform in the X-axis direction and the Y-axis direction, and can simultaneously and respectively slide in the X-axis direction and the Y-axis direction so as to adapt to the deformation in the horizontal direction.
The above embodiments are exemplified below, and fig. 5 is a front view of the seat body 5 provided according to the embodiment of the present invention in a state of large deformation in the X-axis direction, when a strong shock occurs, the seat body 5 is subjected to horizontal shear deformation in the X-axis direction, and at this time, the slider 3 slides on the slide rail 2 in the X-axis direction. When the support body 5 deforms to the designed deformation limit value along the X-axis direction to the maximum extent, the sliding block 3 is blocked by the stop block 4, the deformation of the support body 5 is limited to be further increased, and the instability of the support body 5 is avoided. Be connected through flexible material 6 between two sliders 3, strengthen the tensile bearing capacity of the spacing isolation bearing of tensile to restriction support body 5 receives the pulling force of Z axle direction, avoids support body 5 to be drawn and is destroyed.
Fig. 6 is a left side view of the tension-resistant limit-isolated bearing provided according to the embodiment of the invention, and fig. 7 is a front view of the bearing body 5 provided according to the embodiment of the invention in a large deformation state in the Y-axis direction; when the strong shock occurs, the support body 5 is subjected to horizontal shearing deformation along the Y-axis direction, and the sliding block 3 freely slides on the sliding rail 2 along the Y-axis direction. When the support body 5 deforms to the designed deformation limit along the Y-axis direction, the sliding block 3 is blocked by the stop block 4, the deformation displacement of the support body 5 is limited to be further increased, and the instability of the support body 5 is avoided. Be connected through flexible material 6 between two sliders 3, strengthen the tensile bearing capacity of the spacing isolation bearing of tensile to restriction support body 5 receives the pulling force of Z axle direction, avoids support body 5 to be drawn and is destroyed.
In this embodiment, when the strong shock occurs, the support body generates horizontal shearing deformation, and the slider slides on the slide rail along the X-axis or Y-axis direction. The maximum deformation of the support body in the direction of the X, Y axis is limited by the stop block, so that the instability caused by overlarge deformation of the support body is avoided. Through connecting flexible material between two sliders, the tensile bearing capacity of the spacing isolation bearing of reinforcing tensile to the restriction support body receives the pulling force of Z axle direction, avoids the support body to be drawn and destroys, has improved the stability of the spacing isolation bearing of tensile and the security of tensile ability and structure.
In one embodiment, the dimensions of the upper and lower connection plates 1, 7 need to be determined according to the following conditions: the maximum limit value of the earthquake horizontal deformation of the support body 5 is met; the support body 5 and the stopper 4 are not in contact at all times. Wherein, the bolt hole needs to be reserved according to the mounted position of slide rail 2 to upper junction plate 1 and lower connecting plate 7 to slide rail 2 passes through bolt 8 with upper junction plate 1 or lower connecting plate 7 and is connected.
On the basis of the above embodiments, the stoppers are welded or bolted to both ends of the slide rail.
Preferably, the slide rail 2 is made of stainless steel, and during assembly, the slide block 3 is directly slid into the rail of the slide rail 2 from one end of the slide rail 2, and after the slide block 3 is inserted into the slide rail 2, the baffle plates 4 are welded or bolted to the two ends of the slide rail 2.
In addition to the above embodiments, a thin teflon layer is bonded to the inner side of the slider 3. The inner side of the sliding block 3 is connected with the sliding rail 2. Polytetrafluoroethylene (PTFE, abbreviated PTFE), is commonly referred to as a "non-stick coating" or "easy-to-clean material". The material has the characteristics of acid resistance, alkali resistance and various organic solvents resistance, and is almost insoluble in all solvents. Meanwhile, the polytetrafluoroethylene has the characteristic of high temperature resistance, and the friction coefficient of the polytetrafluoroethylene is extremely low.
The embodiment bonds the polytetrafluoroethylene thin layer in the one end that slider 3 and slide rail 2 are connected, utilizes the low characteristics of polytetrafluoroethylene coefficient of friction, reduces slider 3's coefficient of friction, makes slider 3 can freely slide to do not have the influence to the mechanical properties of support body.
On the basis of the above embodiments, the flexible material 6 is pre-stressed to counteract or reduce the tensile force of the external load on the seat body 5.
Specifically, the prestress is for improving the service performance of the vibration isolation support, and the support body 5 is pressed by applying tensile stress to the flexible material 6 in advance when the vibration isolation support is manufactured, so that the tensile stress caused by load can be completely or partially offset when the support body 5 is in service, and the support body 5 is prevented from being damaged by tension.
In this embodiment, the pre-stress applied to the flexible material 6 can be achieved by the following three steps: firstly, prepressing a support body 5; the flexible material 6 is then tensioned; and finally, the prepressing of the support body 5 is removed. After prestressing force is applied to the flexible material 6, when the tensile limiting isolation bearing receives the tensile force of external load, the prestressing force can offset or reduce the tensile force of the external load to the bearing body 5, and the tensile capacity of the tensile limiting isolation bearing is improved.
On the basis of the above embodiments, the support body 5 is a laminated rubber support, a lead rubber support or a high damping rubber support.
Specifically, the laminated rubber support is composed of two parts, wherein one part is an interlayer thin steel plate, the other part is a plurality of layers of rubber sheets, and the two parts are mutually staggered and superposed and bonded through a special process to form the vibration isolation support. Because the steel plate and the rubber layer in the rubber support are bonded with each other, the steel plate has a restraining effect on the rubber layer, and under the action of a vertical load, the steel plate restrains the rubber layer to jointly bear the vertical load, so that the rubber support has enough vertical bearing capacity and rigidity, and when the vibration isolation support bears the horizontal vibration effect, the rubber layer can bear considerable lateral deformation and cannot be unstable, and the seismic energy input into the structure can be effectively reduced.
The lead core rubber support is characterized in that a lead core is inserted into the center of a common laminated rubber support so as to improve the damping performance of the rubber support. In addition to the ability of the lead support to withstand the weight and horizontal forces of the structure, the plastic deformation of the lead also absorbs a significant amount of energy and provides a horizontal restoring force through the rubber.
A high-damping vibration-isolating rubber bearing is a laminated product made up by adding various compounding agents into natural rubber to raise damping performance of rubber (increase hysteresis loss and reduce storage modulus), and then making use of the rubber with damping effect and making it into a steel plate similar to general rubber bearing structure and making rubber pass through the process of hot vulcanization.
In this embodiment, the mount body 5 is one of a laminated rubber mount, a lead rubber mount, and a high-damping rubber mount.
On the basis of the above embodiments, the flexible material 6 is a steel strand. The steel strand is a steel product formed by twisting a plurality of steel wires, and a zinc-aluminum alloy layer, an aluminum clad layer (aluminum clad), a copper plated layer, epoxy coated resin (epoxy coated) and the like can be added on the surface of the carbon steel according to needs.
On the basis of the above embodiments, the steel strand is applied with prestress to offset or reduce the tensile stress of the external load to the support body 5. Applying prestress on the steel strand, and specifically realizing the prestress by the following three steps: firstly, prepressing a support body 5; then tensioning the steel strand; and finally, removing the prepressing of the support body. When the shock insulation support is manufactured, the support body 5 is pressed by applying tensile stress to the steel strand in advance, so that the tensile force caused by the load can be completely or partially offset when the support body 5 is in service, and the support body 5 is prevented from being damaged by tension.
According to the tensile limiting and shock isolating support provided by the embodiment of the invention, the tensile limiting devices are respectively arranged on the periphery of the support body, when strong shock occurs, the support body is horizontally sheared and deformed, and at the moment, the sliding block slides on the sliding rail along the X-axis or Y-axis direction. The maximum deformation of the support body in the direction of the X, Y axis is limited by the stop block, so that the instability caused by overlarge deformation displacement of the support body is avoided. Through connecting flexible material between two sliders, the tensile bearing capacity of the spacing isolation bearing of reinforcing tensile to the restriction support body receives the pulling force of Z axle direction, avoids the support body to be drawn and destroys, has improved the stability of the spacing isolation bearing of tensile and the security of shock insulation structure.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. The terms "upper", "lower", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made herein without departing from the spirit and scope of the invention, and any changes, equivalents, improvements and the like that come within the spirit and scope of the invention are to be embraced therein.
Claims (6)
1. A tensile limiting shock insulation support is characterized by comprising a support body, an upper connecting plate, a lower connecting plate and a tensile limiting device; wherein,
the upper connecting plate and the lower connecting plate are respectively fixed at the upper end and the lower end of the support body, and the periphery of the support body is respectively provided with a tensile limiting device;
each tensile limiting device comprises two mutually orthogonal sliding limiting mechanisms, the two sliding limiting mechanisms are respectively arranged on the inner side surfaces of the upper connecting plate and the lower connecting plate and are connected through a flexible material, the sliding limiting mechanisms are used for limiting the maximum deformation of the support body in the X, Y axial direction, and the flexible material is used for bearing the tensile force of the support body in the Z axial direction;
the sliding limiting mechanism comprises a sliding rail, a sliding block and a stop block; one side of the slide rail is fixed on the inner side surface of the upper connecting plate or the lower connecting plate, the other side of the slide rail and the inner side surface of the slide block form a relative sliding surface, the outer side of the slide block is fixedly connected with the flexible material, and two ends of the slide rail are fixedly provided with a stop block; the slide rail fixed by the upper connecting plate is orthogonal to the slide rail fixed by the lower connecting plate to form a slide rail with closed X-axis and Y-axis directions; the sliding block is arranged between the two stop blocks, and the sliding block can freely slide on the sliding rail along the X-axis direction and/or the Y-axis direction.
2. The tension-resistant limit-isolation bearing as claimed in claim 1, wherein the stoppers are welded or bolted at both ends of the slide rail.
3. The tension-resistant limit isolation bearing of claim 1, wherein a thin polytetrafluoroethylene layer is bonded to the inner side of the sliding block.
4. The tension-resistant limiting seismic isolation bearing of claim 1, wherein the bearing body is a laminated rubber bearing, a lead rubber bearing or a high-damping rubber bearing.
5. The tension-resistant limit isolation bearing of claim 1, wherein the flexible material is a steel strand.
6. The tension-resistant limit isolation bearing of claim 5, wherein the steel strand is prestressed to offset or reduce the tensile force of external load on the bearing body.
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| CN109138205B (en) * | 2018-09-10 | 2020-04-28 | 北京建筑大学 | Variable-rigidity tensile sliding device |
| CN109629406A (en) * | 2019-01-15 | 2019-04-16 | 同济大学 | A kind of precompressed resistance to plucking inhaul cable damping support saddle |
| CN110863423B (en) * | 2019-11-28 | 2021-12-14 | 苏交科集团股份有限公司 | Bridge butt joint anti-seismic device |
| CN112681552B (en) * | 2020-12-24 | 2022-09-30 | 青岛理工大学 | Second-order enhanced type connecting beam type metal damping shock absorption system |
| CN115162816B (en) * | 2022-08-15 | 2023-08-08 | 中国建筑西南设计研究院有限公司 | Prestressed tensile anti-overturning shock insulation device and construction method thereof |
| CN115288318B (en) * | 2022-09-05 | 2024-05-28 | 安徽工业大学 | Anticollision is from two-dimensional shock insulation support that resets |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201713960U (en) * | 2010-01-28 | 2011-01-19 | 大连理工大学 | Three-dimensional vibration isolating device |
| JP2014199124A (en) * | 2013-03-29 | 2014-10-23 | Ｎｅｃネッツエスアイ株式会社 | Seismic isolator for ceiling suspension apparatus |
| CN203320721U (en) * | 2013-05-23 | 2013-12-04 | 中南大学 | Three-stage energy dissipation shock insulation support composed of steel board rubber, soft steel and lead |
| CN104196144B (en) * | 2014-08-28 | 2016-08-24 | 东南大学 | A kind of separate type slip tensile device of shock isolating pedestal |
| CN104631643B (en) * | 2014-12-24 | 2017-02-22 | 北京工业大学 | Guide rail and V-shaped cable wire combination anti-drawing and limiting seismic isolation device |
| CN104652640A (en) * | 2014-12-24 | 2015-05-27 | 北京工业大学 | Anti-pulling, limiting and earthquake-insulating device integrated by guide rails and vertical ropes |
| CN205530764U (en) * | 2016-01-29 | 2016-08-31 | 中南建筑设计院股份有限公司 | Tensile overlapped rubber vibration -isolated base |
| CN106545211A (en) * | 2016-12-07 | 2017-03-29 | 北京工业大学 | A kind of combined type straight guide type tension and spacing earthquake isolating equipment |
| CN106545212A (en) * | 2016-12-07 | 2017-03-29 | 北京工业大学 | A kind of straight guide type tension and spacing earthquake isolating equipment |
| CN206845791U (en) * | 2017-06-16 | 2018-01-05 | 广州市鼎沣电子实业有限公司 | A kind of motor rubber cushion of efficiently damping |
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