CN109296098B - Tensile shock insulation support without additional lateral movement rigidity - Google Patents
Tensile shock insulation support without additional lateral movement rigidity Download PDFInfo
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- CN109296098B CN109296098B CN201811202520.5A CN201811202520A CN109296098B CN 109296098 B CN109296098 B CN 109296098B CN 201811202520 A CN201811202520 A CN 201811202520A CN 109296098 B CN109296098 B CN 109296098B
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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
- E04H9/022—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising laminated structures of alternating elastomeric and rigid layers
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Abstract
The invention relates to a tensile shock insulation support without additional lateral movement rigidity, which comprises an upper support plate, a lower support plate, a laminated rubber support and an adjusting hole, wherein the upper support plate and the lower support plate are oppositely arranged, the laminated rubber support is connected between the upper support plate and the lower support plate, and the adjusting hole is formed in the lower support plate; the inhaul cable penetrates through the adjusting hole and is connected with the lower support plate and the upper support plate in a drawknot mode, and an adjusting gap is reserved between the inhaul cable and the hole wall of the adjusting hole; the sliding plate is sleeved on the inhaul cable and clamped between the lower support plate and the fastening piece at the end part corresponding to the inhaul cable, the sliding plate can slide relative to the lower support plate, and the inhaul cable can move and adjust in the adjusting hole to enable the inhaul cable to keep a vertical shape. The stay cable can be moved and adjusted to keep a vertical state when the support is sheared and deformed, additional lateral movement rigidity is not generated on the support, and the shock insulation performance of the laminated rubber support is ensured.
Description
Technical Field
The invention relates to the field of building structure engineering, in particular to a tensile shock insulation support without additional lateral movement rigidity.
Background
The traditional laminated rubber vibration isolation support is formed by laminating a steel plate and a rubber layer and firmly bonding the rubber and the steel plate together through a special process, and is widely applied to the field of engineering structure vibration isolation. However, the conventional laminated rubber vibration isolation bearing has the following defects: firstly, the tensile capacity of the support is insufficient: the axial compression stiffness of the laminated rubber shock-isolation support is larger, the tensile stiffness is very small, the axial compression stiffness is 1/5-1/10 of the compression stiffness, the tensile strength is very small, the existing specification limits the generation of support tension, and in an actual shock-isolation structure, the support tension is difficult to avoid under many conditions. Secondly, the horizontal limiting capacity is insufficient: when the compressive stress is large, under the action of a horizontal force, the bending deformation of the laminated rubber support accounts for the main part of the total deformation, and along with the increase of a shearing deformation angle, the phenomenon that the shearing stress is reduced, namely instability damage, can occur to the laminated rubber shock-insulation support, so that the support generates overlarge horizontal displacement under the action of an earthquake and is difficult to self-restore, and even the structure can topple due to secondary bending moment.
In order to solve the defects of the traditional laminated rubber vibration isolation support, the prior art documents (research on vibration isolation performance of the prestressed thick-layer rubber support [ J ]. Li Hua, Luoyu, Huangkai and the like, academic report on building structure, 2013,34 (2): 76-82 page), (analysis on collision of adjacent vibration isolation structures with the prestressed rubber support [ J ]. Li Hua, Guo run, Huangkai and the like, vibration and impact, 2014,33 (9): 131 and 136 page) provide a prestressed rubber vibration isolation support, which is shown in figure 1, holes are reserved on the periphery of the section of the support 10, the holes penetrate through the top plate 11, the bottom plate 12 and the laminated rubber support 13 arranged between the top plate 11 and the bottom plate 12, a flexible prestressed cable 14 penetrates through the hole, and the flexible prestressed cable 14 is fastened to apply vertical prestress on the laminated rubber support 13 before the support 10 bears the vertical load transmitted by the superstructure. The structure can improve the tensile capacity of the support; the support has stronger self-resetting capability after translational deformation and stronger horizontal limiting capability; the thickness of the rubber layer is larger than that of the traditional common laminated rubber shock insulation support, so that the horizontal rigidity and the coupling of the prestressed cable are reduced. In practical application, the prestressed rubber shock-insulation support has the defects that the prestressed cable provides overlarge horizontal additional rigidity, the nonlinearity is increased, the shock-insulation performance of the laminated rubber support is weakened, and the structural design is not facilitated. As shown in fig. 2, RB in fig. 2 is a general rubber seismic isolation bearing, and PRB is a prestressed seismic isolation bearing. Because the prestressed cable can limit the horizontal deformation of the support saddle, great horizontal additional rigidity can be provided, and the horizontal rigidity of the support saddle is increased along with the increase of the lateral displacement of the support saddle. On one hand, the vibration isolation support has lower rigidity which is a basic requirement for playing the vibration isolation effect, and the vibration isolation performance of the vibration isolation support can be reduced by greatly increasing the rigidity of the vibration isolation support; on the other hand, the horizontal rigidity of the prestressed vibration-isolating support is unstable and has great nonlinearity, which increases great difficulty for structural design.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a tensile shock insulation support without additional lateral stiffness, and solves the problem that the shock insulation performance is weakened because a prestressed cable provides excessive horizontal additional stiffness in the conventional prestressed rubber shock insulation support.
The technical scheme for realizing the purpose is as follows:
the invention provides a tensile shock-isolation support without additional lateral stiffness, which comprises an upper support plate, a lower support plate and a laminated rubber support, wherein the upper support plate and the lower support plate are oppositely arranged, the laminated rubber support is connected between the upper support plate and the lower support plate, and the tensile shock-isolation support further comprises:
the adjusting hole is formed in the lower support plate;
the inhaul cable penetrates through the adjusting hole and is connected with the lower support plate and the upper support plate in a drawknot mode, and an adjusting gap is reserved between the inhaul cable and the hole wall of the adjusting hole; and
the sliding plate is sleeved on the inhaul cable and clamped between the lower support plate and the fastening piece at the end part corresponding to the inhaul cable, the sliding plate can slide relative to the lower support plate, and the inhaul cable can move and adjust in the adjusting hole to enable the inhaul cable to keep a vertical shape.
The tensile shock insulation support is provided with the adjusting gap and the sliding plate, so that the stay cable can be moved and adjusted to keep a vertical state when the support is sheared and deformed, additional lateral movement rigidity is not generated on the support, the shock insulation performance of the laminated rubber support is ensured, and the problem that the shock insulation performance is weakened due to the fact that the prestressed cable provides overlarge horizontal additional rigidity in the conventional prestressed rubber shock insulation support is solved. When the shearing deformation of the support is large, the stay cable is not kept in a vertical state and deforms due to the limitation of the adjusting gap and the displacement of the sliding plate, so that the lateral movement rigidity of the laminated rubber support is gradually increased, the horizontal deformation is limited, and the shearing instability is prevented.
The tensile shock insulation support without additional lateral movement rigidity is further improved in that the stay cable is arranged on the outer side of the laminated rubber support.
The tensile shock-insulation support without additional lateral movement stiffness is further improved in that the stay cable is tensioned through a fastening piece located at the end of the stay cable after the tensile shock-insulation support is installed at a set position, and the tensioning force of the fastening piece is smaller than or equal to the compressive stress applied to the laminated rubber support.
The tensile seismic isolation support without additional lateral movement stiffness is further improved in that the inhaul cables are uniformly distributed along the circumference of the outer side of the laminated rubber support.
The tensile shock insulation support without additional lateral movement rigidity is further improved in that lubricating oil is coated between the sliding plate and the lower support plate.
The tensile shock insulation support without additional lateral movement rigidity is further improved in that a ball is clamped between the sliding plate and the lower support plate.
The tensile seismic isolation bearing without additional lateral movement rigidity is further improved in that the upper bearing plate and the lower bearing plate respectively comprise a first connecting plate and a second connecting plate which are oppositely arranged and a supporting plate which is connected between the first connecting plate and the second connecting plate in a supporting mode;
and second connecting plates in the upper support plate and the lower support plate are connected with the laminated rubber support and the inhaul cable.
The tensile shock insulation support without additional lateral movement rigidity is further improved in that the inhaul cable is provided with external threads, and the fastening piece is a fastening nut.
The tensile seismic isolation support without additional lateral movement rigidity is further improved in that the stay cable is a steel strand.
The tensile shock insulation support without additional lateral movement rigidity is further improved in that the adjusting holes are circular holes.
Drawings
Fig. 1 is a schematic structural diagram of a prestressed rubber seismic isolation bearing in the prior art.
FIG. 2 is a stiffness curve of a prestressed rubber vibration isolation support and a common rubber vibration isolation support in the prior art.
FIG. 3 is a schematic structural diagram of the tensile seismic isolation bearing without additional lateral stiffness.
FIG. 4 is a side view of the tensile isolation bearing of the present invention without additional lateral stiffness.
Fig. 5 is a sectional view a-a in fig. 4.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 3, the invention provides a tensile seismic isolation support without additional lateral movement stiffness, wherein a guy cable is connected between an upper support plate and a lower support plate in a pulling mode, the guy cable has a certain movement range through arrangement of an adjusting hole and a sliding plate, the guy cable can be kept in a vertical state within a certain range of shear deformation of the tensile seismic isolation support through movement adjustment, the additional lateral movement stiffness is not generated on the tensile seismic isolation support, the seismic isolation performance of a laminated rubber support is ensured, when the tensile seismic isolation support is subjected to large shear deformation, the guy cable does not keep in the vertical state and generates deformation due to limitation of the sliding plate and the adjusting hole, the lateral movement stiffness of the seismic isolation support is gradually increased, and the effects of limiting horizontal deformation and preventing shear instability are achieved. The tensile seismic isolation bearing without additional lateral movement stiffness is described in the following by combining the attached drawings.
Referring to fig. 3, a schematic structural diagram of the tensile seismic isolation bearing without additional lateral stiffness is shown. The tensile seismic isolation bearing without additional lateral stiffness of the invention is described below with reference to fig. 3.
As shown in fig. 3, the tensile seismic isolation mount 20 without additional lateral shift stiffness of the present invention includes an upper mount plate 21 and a lower mount plate 22 which are oppositely disposed and a laminated rubber mount 23 connected between the upper mount plate 21 and the lower mount plate 22, the laminated rubber mount 23 including a plurality of steel plates and a plurality of rubber layers which are overlapped with each other. The tensile seismic isolation support 20 further comprises an adjusting hole 24, a stay cable 25 and a sliding plate 26, wherein the adjusting hole 24 is formed in the lower support plate 22, the stay cable 25 penetrates through the adjusting hole 24 and is connected with the lower support plate 22 and the upper support plate 21 in a pulling and tying mode, and an adjusting gap is reserved between the wall of the stay cable 25 and the wall of the adjusting hole 24; the sliding plate 26 is arranged corresponding to the adjusting hole 24, the sliding plate 26 is sleeved on the inhaul cable 25 and clamped between the lower support plate 22 and the fastening piece 27 at the corresponding end of the inhaul cable 25, the sliding plate 26 can slide relative to the lower support plate 22, and the inhaul cable 25 can move and adjust in the adjusting hole 24 so that the inhaul cable 25 keeps a vertical shape.
When the tensile seismic isolation bearing 20 is used, the tensile seismic isolation bearing is installed on a structure to be isolated through the upper bearing plate 21 and the lower bearing plate 22, when the structure is subjected to a vibration load (such as an earthquake or a wind shock), the load applies an acting force moving in the horizontal direction to the upper bearing plate 21 and the lower bearing plate 22 (generally, the upper bearing plate 21 horizontally moves relative to the lower bearing plate 22 due to the load), the acting force acts on the laminated rubber bearing 23 between the upper bearing plate 21 and the lower bearing plate 22, the rubber layer on the laminated rubber bearing 23 can be subjected to shear deformation so as to consume the acting force, and the seismic isolation effect is achieved.
As shown in fig. 1, the prestressed rubber seismic isolation bearing 10 of fig. 1 has the flexible prestressed cable 14 pre-tensioned thereon, which provides a great horizontal additional stiffness to the laminated rubber bearing 13, and is limited by the flexible prestressed cable 14 when the laminated rubber bearing 13 is deformed horizontally, thereby weakening the seismic isolation performance of the laminated rubber bearing 13.
The problem of limiting the horizontal deformation of the laminated rubber support 13 in the flexible prestressed cable 14 arranged in the figure 1 is solved. As shown in fig. 3 and 5, the tensile seismic isolation bearing 20 of the invention is provided with an adjusting hole 24 for a cable 25 on a lower bearing plate 22, an adjusting gap is reserved between the hole wall of the adjusting hole 24 and the outer surface of the cable 25, the cable 25 can move and adjust in the adjusting hole 24 by setting the adjusting gap, furthermore, in order to realize the movement adjustment of the cable 25, a sliding plate 26 is arranged at the joint of the lower bearing plate 22 and the cable 25 in a cushioning mode, the sliding plate 26 is clamped between the lower bearing plate 22 and a corresponding fastening member 27, and the movement adjustment of the cable 25 in the adjusting hole 24 is realized through the movement of the sliding plate 26 relative to the lower bearing plate 22. Specifically, when the shock-isolated structure receives the load and exerts horizontal effort to upper bracket board 21, upper bracket board 21 translates under the effect of this horizontal effort, and then the end that cable 25 and upper bracket board 21 are connected has been driven and the translation, the translation of the lower part of cable 25 through sliding plate 26 is along with upper bracket board 21 together translation in adjustment hole 24, thereby this cable 25 can keep vertical form, can not exert additional side to stromatolite rubber support 23 and move rigidity, and then this stromatolite rubber support 23 can exert its shock insulation performance, consume the load that upper bracket board 21 received through the shear deformation of rubber layer. Through the above analysis, the inhaul cable 25 of the present invention can solve the problems that the prestressed cable of the prestressed rubber seismic isolation bearing 10 in fig. 1 provides too large horizontal additional stiffness, increases nonlinearity, not only weakens the seismic isolation performance, but also is not beneficial to the structural design by providing the adjusting hole 24 and the sliding plate 26. The inhaul cable 25 achieves a certain degree of adjusting function within the range of the adjusting clearance reserved in the adjusting hole 24, the inhaul cable 25 keeps a vertical state through moving adjustment within a certain range of the shearing deformation of the tensile seismic isolation support 20, additional lateral movement rigidity cannot be generated, and the seismic isolation performance of the laminated rubber is guaranteed. When the tensile isolation bearing 20 is greatly deformed in shearing, the stay cable 25 is no longer kept vertical and deformed due to the limitation of the displacement of the adjusting hole 24 and the sliding plate 26, so that the lateral movement rigidity of the tensile isolation bearing 20 is gradually increased, the horizontal deformation is limited, and the shearing instability is prevented.
In a preferred embodiment of the present invention, the tension cable 25 is tensioned by the fastening member 27 located at the end of the tension cable 25 after the tension-resistant seismic isolation bearing 20 is installed at the installation position, and the tension force of the fastening member 27 is less than or equal to the compressive stress applied to the laminated rubber bearing 20.
As shown in fig. 1, the prestressed rubber-vibration isolating mount 10 of fig. 1 has a problem in that: the support bears great compressive stress, and the rubber layer is thicker, has reduced the shear stability on rubber layer. The prestressed rubber vibration-isolating support 10 firstly applies a certain prestress sigma to the rubber layer of the laminated rubber support 13 by tensioning the prestressed cable 14pAfter applying the superstructure load (assuming that the mean pressure from the superstructure load is σ)q) The load is offset by the relaxation of the prestressed cable, and the rubber lamination stress almost maintains sigmapInvariably, sigma needs to be satisfied in order to ensure the prestressed cable 14 is effectivep>σqThat is, the actual pressure stress born by the rubber layer is larger than the load pressure transmitted by the upper structure; in addition, since the rubber layer of the prestressed vibration-isolating support 10 is thick, the primary shape factor S1 and the secondary shape factor S2 are both small, wherein the primary shape factor S1 is the diameter of the rubber layer divided by 4 times the thickness of a single rubber layer, and the secondary shape factor S2 is the diameter of the rubber layer divided by the thickness of all the rubber layersThe sum of the thicknesses. When the rubber layer of the laminated rubber mount 13 has a large compressive stress and the primary form factor S1 and the secondary form factor S2 are small, the rubber layer generates bending deformation, which is a deformation of the rubber layer due to a horizontal force, and the total deformation includes shear deformation and bending deformation, which is a deformation of the rubber layer due to a vertical force concentrated on a part, such as a tilt deformation. The shearing stress of the rubber layer can generate softening phenomenon under the condition of large shearing deformation, namely when the shearing deformation reaches a certain critical value, the shearing rigidity is reduced along with the increase of the shearing angle, and the instability and the damage of the manufacture can be caused.
In order to solve the problems that the prestressed rubber-vibration-isolating support in fig. 1 has a support bearing a large compressive stress and a thick rubber layer, and the shearing stability of the rubber layer is reduced, as shown in fig. 3 to 5, the fastening members 27 at the two ends of the cable 25 of the invention are fastened in a post-tensioning manner, that is, after the upper support plate 21 and the lower support plate 22 are mounted on the corresponding structures, the cable 25 is tensioned by the fastening members 27, so that the cable can be ensured to exert a tensile action, the rubber layer of the laminated rubber support 23 can be reduced to bear an extra compressive stress, and further, the tensioning force of the fastening members 27 is less than or equal to the compressive stress borne by the laminated rubber support 23. In order to ensure the tensile action of the cable 25, the tension applied to the fastening member 27 is smaller than the compressive stress applied to the laminated rubber support 20, and the tension applied to the fastening member 27 is understood to be slightly smaller than the compressive stress, and the invention adopts a post-tensioning mode, so that the tension applied to the fastening member 27 can be easily adjusted to be equal to the compressive stress applied to the laminated rubber support 23, and the tension applied to the cable 25 is preferably equal to the compressive stress applied to the laminated rubber support 23, thereby realizing that no additional stress is applied to the rubber layer of the laminated rubber support 23, and simultaneously ensuring that the sliding plate 26 can slide.
Further, the cable 25 of the present invention is post-tensioned, so that the rubber layer in the laminated rubber mount 23 of the present invention does not need to be set thick, the laminated rubber mount 23 of the present invention can be an existing ordinary laminated rubber mount, so that the rubber layer of the tensile-resistant seismic-isolation bearing 20 of the present invention receives a small compressive stress (compressive stress transmitted only from the superstructure load), the primary shape factor S1 and the secondary shape factor S2 are both large relative to the prestressed rubber seismic-isolation bearing 10 of fig. 1, thus, the shearing deformation generated by the rubber layer of the tensile vibration-isolating support 20 accounts for the main part of the total deformation, the phenomenon of strain hardening can occur in the shearing stress of the rubber layer under the large shearing deformation state, that is, the shear stiffness increases with an increase in shear angle at large deformation, which is a stable state, so that the tensile-isolated bearing 20 has a stable self-resetting capability.
As another preferred embodiment of the present invention, as shown in fig. 3 to 5, the stay 25 is provided outside the laminated rubber mount 23. Therefore, the capability of resisting bending deformation of the tensile vibration-isolating support 20 is improved, the bending section modulus of the laminated rubber support 23 is greatly improved, the bending resistance of the laminated rubber support 23 is improved, and the instability resistance of the tensile vibration-isolating support 20 is increased.
Further, the pulling cables 25 are uniformly laid along the circumference of the outer side of the laminated rubber mount 23.
As a further preferred embodiment of the present invention, lubricating oil is applied between the sliding plate 26 and the lower support plate 22. The sliding of the sliding plate 26 is made smooth by the provision of the lubricating oil.
In another preferred embodiment of the present invention, balls are interposed between the sliding plate 26 and the lower support plate 22, and the sliding of the sliding plate 26 is facilitated by the balls. When the balls are arranged, the lower support plate 22 is correspondingly provided with a caulking groove for accommodating the balls, so that the balls are arranged in the caulking groove, part of the balls are exposed out of the notch of the caulking groove, the sliding plate 26 is attached to the part, exposed out of the balls, and the sliding of the sliding plate 26 is facilitated through the rolling of the balls.
As still another preferred embodiment of the present invention, as shown in fig. 3 and 4, the upper support plate 21 of the tensile-isolated bearing 20 of the present invention includes a first connection plate 211 and a second connection plate 212 which are oppositely disposed and a bracing plate 213 supportedly coupled between the first connection plate 211 and the second connection plate 212, the bracing plate 213 includes a ring-shaped bracing plate located at a middle portion of the first connection plate 211 and a diagonal bracing plate disposed along a diagonal line of the first connection plate 211, the ring-shaped bracing plate and the diagonal bracing plate are supportedly coupled to the first connection plate 211 and the second connection plate 212, and an operation space is formed by disposing the bracing plate 213 such that the first connection plate 211 and the second connection plate 212 are spaced apart from each other, and it is convenient to assemble a cable and a fastening connector on the upper support plate 21.
The structure of lower support plate 22 is the same as that of upper support plate 21, lower support plate 22 includes first connecting plate 221 and second connecting plate 222 that set up relatively and supports fagging 223 of connecting between first connecting plate 221 and second connecting plate 222, fagging 223 includes the annular fagging that is located first connecting plate 221 middle part and the bracing plate that sets up along the diagonal of first connecting plate 221, annular fagging and bracing plate all support to be connected in first connecting plate 221 and second connecting plate 222, fagging 223 through setting up makes and has certain interval between first connecting plate 221 and the second connecting plate 222, operation space has been formed, can conveniently assemble the fastening connection spare on cable and the lower support plate 22 through this operation space.
The second connecting plate 212 of the upper seat plate 21 and the second connecting plate 222 of the lower seat plate 22 are connected to the laminated rubber seat 23 and the cable 25. Sealing plates are arranged at the top and the bottom of the laminated rubber support 23, and the second connecting plate 212 of the upper support plate 21 and the second connecting plate 222 of the lower support plate 22 are attached to and fixedly connected with the corresponding sealing plates by screws.
As shown in fig. 4 and 5, since the second connection plate 222 is opened with the adjustment hole 24, the second connection plate 222 is designed to be larger than the first connection plate 221, so that a space for providing the adjustment hole 24 is provided at a side portion of the second connection plate 222.
As shown in fig. 3, a plurality of mounting holes are formed in the first connection plate 221 of the upper bracket plate 21, and the first connection plate 221 of the upper bracket plate 21 is mounted to a structure to be isolated by fastening connectors through the mounting holes. Similarly, a plurality of attachment holes for attachment are also provided in the first connection plate 221 of the lower seat plate 22.
As still another preferred embodiment of the present invention, the cable 25 is provided with an external thread, and the fastening member 27 is a fastening nut. One end of the cable 25 is passed through the second connection plate 212 of the upper support plate 21 and screwed with a fastening nut, thereby connecting the end of the cable 25 to the second connection plate 212; the other end of the cable 25 is passed through the adjustment hole 24 of the second connection plate 222 and screwed with a fastening nut, the sliding plate 26 is fitted over the end before screwing the fastening nut, and the end of the cable 25 is connected to the second connection plate 222 by the fastening nut. Initially, both fastening nuts may not be tightened, and after the upper and lower seat plates 21 and 22 are mounted to a designated structure, the two fastening nuts are tightened again to tighten the cable 25.
Preferably, the stay 25 is a steel strand.
Further, for improving the stability of the cable 25, the upper support plate 21 is used for connecting a sealing ring embedded in a connecting hole of the cable 25, so that the cable 25 is tightly connected with the upper support plate 21, and relative displacement cannot occur. An adjusting gap is reserved in the adjusting hole 24 for the cable 25, so that the position of the connecting end part of the cable 25 and the lower support plate 21 can be adjusted, the adjusting range of the adjusting gap cannot be infinite, and preferably, the maximum value of the adjusting gap (i.e. the distance from the outer surface of the cable 25 to the hole wall of the adjusting hole 24) is equal to half of the total thickness of the rubber layers in the laminated rubber support 23, wherein the total thickness of the rubber layers should be deducted from the thickness of the steel plate in the laminated rubber support 23.
Preferably, the adjustment holes 24 are circular holes.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (10)
1. A tensile shock isolation support without additional lateral movement rigidity comprises an upper support plate, a lower support plate, a laminated rubber support and an adjusting hole, wherein the upper support plate and the lower support plate are oppositely arranged, the laminated rubber support is connected between the upper support plate and the lower support plate, and the adjusting hole is formed in the lower support plate; pass regulation hole and drawknot are connected the bottom suspension bedplate with the cable of upper bracket board, the cable with it adjusts the clearance to leave between the pore wall of regulation hole, its characterized in that, tensile shock insulation support still includes:
the sliding plate is sleeved on the inhaul cable and clamped between the lower support plate and the fastening piece at the end part corresponding to the inhaul cable, the sliding plate can slide relative to the lower support plate, and the inhaul cable can move and adjust in the adjusting hole to enable the inhaul cable to keep a vertical shape.
2. A tensile seismic isolation bearing without additional lateral stiffness as claimed in claim 1 wherein said guy cable is provided outside said laminated rubber bearing.
3. The tension-resistant seismic isolation bearing without additional lateral movement stiffness as claimed in claim 1 or 2, wherein the tension cable is tensioned by a fastener located at the end of the tension cable after the tension-resistant seismic isolation bearing is installed at a set position, and the tension of the fastener is less than or equal to the compressive stress applied to the laminated rubber bearing.
4. A tensile seismic isolation bearing without additional lateral shifting stiffness as claimed in claim 1 or 2, wherein said tension cables are uniformly laid along the circumference of the outer side of said laminated rubber bearing.
5. A tension-resistant seismic isolation bearing without additional lateral stiffness as claimed in claim 1 wherein a lubricant is applied between said sliding plate and said lower bearing plate.
6. A tension-resistant seismic isolation bearing without additional lateral stiffness as claimed in claim 1, wherein balls are interposed between said sliding plate and said lower bearing plate.
7. A tensile isolation bearing without additional lateral stiffness as claimed in claim 1, wherein said upper bearing plate and said lower bearing plate each comprise oppositely disposed first and second connecting plates and a bracing plate supportingly connected between said first and second connecting plates;
and second connecting plates in the upper support plate and the lower support plate are connected with the laminated rubber support and the inhaul cable.
8. The tension-resistant seismic isolation bearing without additional lateral movement stiffness as claimed in claim 1, wherein the stay is provided with an external thread, and the fastening member is a fastening nut.
9. A tensile seismic isolation bearing without additional lateral movement stiffness as claimed in claim 1 or 8, wherein said bracing cable is a steel strand.
10. A tensile isolation bearing without additional lateral stiffness as claimed in claim 1 wherein said adjustment holes are circular holes.
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| CN201811202520.5A CN109296098B (en) | 2018-10-16 | 2018-10-16 | Tensile shock insulation support without additional lateral movement rigidity |
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| CN201811202520.5A CN109296098B (en) | 2018-10-16 | 2018-10-16 | Tensile shock insulation support without additional lateral movement rigidity |
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| CN109296098B true CN109296098B (en) | 2019-12-20 |
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| CN110067427A (en) * | 2019-05-08 | 2019-07-30 | 徐赵东 | The double-cylinder type anti-pulling and multidimensional damping device and its shock isolation method of shock isolating pedestal |
| CN113863756B (en) * | 2021-11-15 | 2022-09-13 | 东莞理工学院 | Three-phase adjacent structure damping control system suitable for building compact area |
| CN114922296B (en) * | 2022-05-26 | 2023-03-03 | 海南大学 | Three-dimensional energy-consumption shock-insulation support |
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| GR1001450B (en) * | 1992-12-24 | 1993-12-30 | Ioannis Logiadis | Bound vibration antiseismic joint for the secure seismic insulation of the constructions. |
| CN100478538C (en) * | 2007-04-06 | 2009-04-15 | 北京工业大学 | Three-way shock-absorbing stand with variable rigidity and damping |
| CN201648958U (en) * | 2010-05-06 | 2010-11-24 | 福州大学 | Pre-stressed thick-layer rubber vibration-isolating support |
| CN105256895B (en) * | 2015-10-30 | 2017-06-13 | 西南交通大学 | A kind of shock isolating pedestal stopping means |
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