CN207194208U - A kind of three-dimensional rubber earthquake isolating equipment - Google Patents

Abstract

The utility model relates to a three-dimensional rubber shock-isolation device, which belongs to the technical field of building shock-isolation. The utility model is composed of a rubber support and a vertical energy dissipator with a horizontal limit device, a vertical limit and energy dissipation function connected in series on the top of the rubber support. The rubber support and the vertical energy dissipator are combined through bolts and connecting plates. As a whole, the vertical energy dissipator is composed of a rubber buffer ring, a lateral limit ring, an anti-pull piston, an anti-pull cylinder, a friction ring, a frustum-shaped pressurized cover and a pressurized bolt. The utility model is connected in series with the vertical energy dissipator through the rubber bearing, and satisfies the horizontal and vertical three-dimensional shock isolation functions at the same time, and the structure overturning can be effectively controlled through the vertical limit mechanism, and the small vertical series stiffness can avoid the rubber bearing Damaged by pulling.

Description

A three-dimensional rubber vibration isolation device

technical field

The utility model relates to a three-dimensional rubber shock-isolation device, which belongs to the technical field of building shock-isolation.

Background technique

Earthquake is a very serious natural disaster. During the earthquake, the surface buildings will be distorted and deformed. When the earthquake is relatively strong, they may even collapse, causing huge economic losses and casualties.

In order to ensure that buildings and bridges play their due functions in earthquakes and reduce earthquake disasters, as an effective structural shock-absorbing control technology, seismic isolation technology has received extensive attention from engineering and academic circles, and has been widely used in buildings and bridges at home and abroad. It has been widely used in earthquake resistance of engineering structures.

Rubber seismic isolation technology is the most widely used seismic isolation technology at present. Ordinary rubber bearings are made of rubber layers and steel plate layers laminated and vulcanized. They have the characteristics of low horizontal stiffness, and the effect of reducing horizontal earthquake effects is very obvious. However, Excessive vertical stiffness not only does not reduce the vertical seismic action, but even amplifies the vertical seismic action, and the tensile performance of the rubber bearing is extremely low compared with the compressive performance. When the structure encounters a large earthquake, it may Due to the tensile failure of the rubber bearing, the structure overturned. In addition, due to the poor tensile performance of the rubber bearing, the seismic isolation structure could not develop towards high-rise or super high-rise, which limited the application range of seismic isolation technology. In the building, the seismic isolation rubber bearing is only effective for isolating horizontal earthquakes, so the vibration comfort of the subway superstructure cannot be solved.

Contents of the invention

The technical problem to be solved by the utility model is: the utility model provides a three-dimensional rubber shock-isolating device, which is used to solve the problem of the vertical vibration comfort of the subway superstructure due to the operation of the subway, and solves the problem of ordinary laminated layers The rubber is damaged by vertical tension and the vertical damping is low.

The technical scheme of the utility model is: a three-dimensional rubber shock-isolating device, which is formed in series by a rubber support and a vertical energy consumer with a horizontal limit device, a vertical limit and energy dissipation functions on the top of the rubber support. It is integrated with the vertical energy dissipator through bolts and connecting plates. The vertical energy dissipator consists of a rubber buffer ring 7, a lateral limit ring 9, an anti-pull piston 10, an anti-pull cylinder 11, a friction ring 12, and a truncated cone The pressure cover 14 and the pressure bolt 13 are composed.

The connecting steel plate 1 or above of the rubber bearing is closely connected with the rubber bearing main body 2, and the rubber bearing main body 2 or more is closely connected with the upper connecting plate 4 of the rubber bearing, and the upper connecting plate 4 of the rubber bearing passes through the lower connecting plate 5 of the vertical energy dissipater The connecting bolts 3 are tightly connected, the lower connecting plate 5 of the vertical energy absorber is tightly connected with the lateral limit ring 9 through the inner connecting bolt a6, and the anti-pull piston 10 and the lower connecting plate 5 of the vertical energy absorber are connected through the anti-pull connecting bolt 8 Tightly connected, the anti-pullout cylinder 11 and the anti-pullout piston 10 are placed upside down, the upper part of the anti-pullout cylinder 11 is tightly connected with the upper connection plate 15 of the vertical energy consumer through the inner connection bolt b16, and the lower connection plate 5 of the vertical energy consumer , the anti-pullout cylinder 11, the lateral limit ring 9 and the space area surrounded by the anti-pullout piston 10 is filled with a rubber cushioning ring 7, which is used to reduce the impact of the anti-pullout cylinder 11 and the lower connecting plate 5 of the vertical energy consumer, The top of the anti-pull piston 10 is connected with the frustum-shaped pressure cover 14 through the pressure bolt 13, and the friction ring 12 is filled between the top of the anti-pull piston 10 and the truncated-cone-shaped pressure cover 14. The ring 12 is radially expanded by being squeezed by the frustum-shaped pressurized cover 14 , thereby squeezing the wall of the anti-pull cylinder 11 .

Under the pre-tightening force of the pressure bolt 13, the friction ring 12 is extruded by the frustum-shaped pressure cover 14 and expands radially, thereby extruding the wall of the anti-drawing cylinder 11. When the friction ring 12 and the wall of the anti-drawing cylinder 11 move relatively, the friction To consume seismic energy, the energy consumption mechanism of the vertical energy consumer is frictional energy consumption.

The anti-pullout cylinder 11 and the anti-pullout piston 10 are reversed to form an anti-pullout limiting mechanism.

The three-dimensional rubber shock-isolating device consists of a rubber shock-isolating support and a vertical energy dissipator with a horizontal limiting device, a vertical limiting device and energy dissipation functions on its top to form a flexible tensile mechanism in series.

The working process of the utility model is: when no earthquake occurs, the rubber bearing and the energy dissipator jointly bear the vertical load of the structure; Isolation, which plays the role of isolating horizontal earthquakes; under the action of vertical earthquakes, the vertical energy dissipator relies on the anti-pull piston to drive the friction ring to move up and down in the anti-pull cylinder, thereby generating friction with the anti-pull cylinder to consume seismic energy. In addition, the small vertical rigidity of the vertical energy dissipator can release the tensile stress of the rubber bearing due to tension, and prevent the rubber bearing from being damaged by tension. It can prevent excessive vertical tensile deformation of the device and prevent the structure from overturning.

The beneficial effects of the utility model are: the three-dimensional rubber shock-isolating device is connected in series with the vertical energy dissipator through the rubber bearing, and at the same time satisfies the horizontal and vertical three-dimensional shock-isolation functions, and the structure overturning can be effectively controlled through the limit mechanism in the vertical direction, The small vertical series stiffness can avoid the damage of rubber bearings under tension, and can realize the development of seismic isolation buildings towards high-rise and super high-rise buildings, expand the application range of seismic isolation technology, and can also solve the problems caused by the operation of subway superstructures. The problem of vertical vibration comfort.

The utility model can reduce the vertical stiffness and provide vertical damping without affecting the horizontal stiffness and damping of the support. Its structural features solve the problems of vertical tensile damage and low vertical damping of ordinary laminated rubber, relying on the friction mechanism between the friction ring in the vertical energy dissipator and the anti-pull cylinder to play the role of energy consumption and provide damping to achieve real 3D vibration isolation effect.

Description of drawings

Fig. 1 is the utility model three-dimensional structure schematic diagram;

Fig. 2 is a schematic sectional view of a common laminated rubber shock-isolation device;

Fig. 3 is a sectional view of the utility model;

Fig. 4 is a deformation diagram of the utility model jointly subjected to horizontal force and vertical force.

Each label in Figure 1-4: 1-connecting steel plate under the rubber bearing, 2-main body of the rubber bearing, 3-connecting bolt, 4-connecting plate on the rubber bearing, 5-connecting plate under the vertical energy consumer, 6 -Inner connecting bolt a, 7-Rubber cushioning ring, 8-Anti-pull connecting bolt, 9-Lateral limit ring, 10-Anti-pull piston, 11-Anti-pull cylinder, 12-Friction ring, 13-Pressure bolt , 14-cone-shaped pressure cover, 15-connecting plate on the vertical energy consumer, 16-internal connecting bolt b, 17-connecting steel plate on the rubber support.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described further.

Embodiment 1: As shown in Figures 1-4, a three-dimensional rubber shock-isolating device consists of a rubber support and a vertical energy dissipator with a horizontal limit device, a vertical limit and energy dissipation functions connected in series on its top. The rubber bearing and the vertical energy dissipator are combined into a whole through bolts and connecting plates. The vertical energy dissipator consists of a rubber cushioning ring 7, a lateral limit ring 9, an anti-pull piston 10, an anti-pull cylinder 11, a friction Ring 12, truncated cone shape pressure cover 14 and pressure bolt 13 form.

The connecting steel plate 1 or above of the rubber bearing is closely connected with the rubber bearing main body 2, and the rubber bearing main body 2 or more is closely connected with the upper connecting plate 4 of the rubber bearing, and the upper connecting plate 4 of the rubber bearing passes through the lower connecting plate 5 of the vertical energy dissipater The connecting bolts 3 are tightly connected, the lower connecting plate 5 of the vertical energy absorber is tightly connected with the lateral limit ring 9 through the inner connecting bolt a6, and the anti-pull piston 10 and the lower connecting plate 5 of the vertical energy absorber are connected through the anti-pull connecting bolt 8 Tightly connected, the anti-pullout cylinder 11 and the anti-pullout piston 10 are placed upside down, the upper part of the anti-pullout cylinder 11 is tightly connected with the upper connection plate 15 of the vertical energy consumer through the inner connection bolt b16, and the lower connection plate 5 of the vertical energy consumer , the anti-pullout cylinder 11, the lateral limit ring 9 and the space area surrounded by the anti-pullout piston 10 is filled with a rubber cushioning ring 7, which is used to reduce the impact of the anti-pullout cylinder 11 and the lower connecting plate 5 of the vertical energy consumer, The top of the anti-pull piston 10 is connected with the frustum-shaped pressure cover 14 through the pressure bolt 13, and the friction ring 12 is filled between the top of the anti-pull piston 10 and the truncated-cone-shaped pressure cover 14. The ring 12 is radially expanded by being squeezed by the frustum-shaped pressurized cover 14 , thereby squeezing the wall of the anti-pull cylinder 11 .

Further, under the pre-tightening force of the pressure bolt 13, the friction ring 12 is radially expanded by being squeezed by the frustum-shaped pressure cover 14, thereby squeezing the wall of the anti-pull cylinder 11. When the friction ring 12 and the wall of the anti-pull cylinder 11 move relatively When , the friction consumes seismic energy, and the energy consumption mechanism of the vertical energy absorber is frictional energy consumption.

Further, the anti-pullout cylinder 11 and the anti-pullout piston 10 are reversed to form an anti-pullout limiting mechanism.

Further, the three-dimensional rubber shock-isolating device is composed of a rubber shock-isolating support and a vertical energy dissipator with a horizontal limit device, a vertical limit and energy dissipation functions on the top of the rubber support in series to form a flexible tensile mechanism.

As shown in Figure 4, under the action of horizontal seismic force, the rubber bearing main body 2 produces horizontal shear deformation, which reduces the horizontal seismic force on the upper building; while under the action of vertical seismic force, the vertical loss The energy device relies on the anti-drawing piston 10 to drive the friction ring 12 to reciprocate up and down in the anti-drawing cylinder 11 to generate friction with the anti-drawing cylinder 11, consume seismic energy, and reduce the vertical seismic force of the rubber bearing main body 2, effectively Protect the rubber bearing and improve its durability; the anti-pullout cylinder 11 and the anti-pullout piston 10 are undercut to form a pullout limit mechanism, and the excessive vertical stretch deformation of the restraint device prevents the structure from overturning and collapsing. The application range of the seat.

Embodiment 2: As shown in Figure 3, a three-dimensional rubber shock-isolating device is composed of a rubber shock-isolation support LNR600 with a diameter of Φ600mm and a vertical energy dissipator with a diameter of Φ500mm in series. First, fix the lateral limit ring 9 above the lower connecting plate 5 of the vertical energy dissipator with the inner connecting bolt a6 of GB/T5782 M4×14 specification, and the lower connecting plate 5 of the vertical energy dissipater adopts a Q345 square of 700mm*700mm Steel plate, the thickness of the steel plate is 30mm; put the rubber cushioning ring 7, the anti-pull cylinder 11, and the anti-pull piston 10 into the vertical energy dissipator in turn, and then use the anti-pull connecting bolt 8 of GB/T5782 M16×44 specification to connect the anti-pull The piston 10 is fixed on the top of the connecting plate 5; then the friction ring 12 and the frustum-shaped pressure cover 14 are sequentially placed on the top of the anti-pull piston 10, and the pressure bolt 13 of GB/T5782 M16×44 specification is used to pre-tighten the frustum-shaped pressure cover 14 , and then use GB/T5782 M4×14 internal connection bolts b16 to fix the upper connecting plate 15 of the vertical energy consumer on the top of the pullout cylinder 11; finally, use the GB/T5782 M5×16 specification for the assembled vertical energy consumer The connecting bolt 3 is installed above the connecting plate 4 on the rubber bearing.

Performance Testing:

The isolation device is tested according to current technical specifications. The experimental instrument is a 1500T compression-shear testing machine, with a positive pressure of 15MPa, a positive tension of 5MPa, and a shear strain of γ=100%. The test results are as follows:

It can be seen that compared with the ordinary laminated rubber bearing, the three-dimensional seismic isolation device of the present utility model has the main advantages of reducing the vertical stiffness and providing vertical damping without affecting the horizontal stiffness and damping of the bearing. Its structural features solve the problems of vertical tensile damage and low vertical damping of ordinary laminated rubber, relying on the friction mechanism between the friction ring in the vertical energy dissipator and the anti-pull cylinder to play the role of energy consumption and provide damping to achieve real 3D vibration isolation effect.

The specific embodiments of the utility model have been described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned embodiments. Various changes are made.

Claims (5)

1. A kind of 1. three-dimensional rubber earthquake isolating equipment, it is characterised in that：By rubber support and its top with Compact Mounts, vertical Spacing and power consumption function vertical energy consumer is in series, and rubber support is combined into vertical energy consumer by bolt and connecting plate Overall, vertical energy consumer is by rubber bradyseism ring（7）, lateral Displacement ring（9）, resistance to plucking piston（10）, resistance to plucking cylinder（11）, drag ring （12）, taper type pressurization lid（14）And pressurization bolt（13）Composition.
2. 2. three-dimensional rubber earthquake isolating equipment according to claim 1, it is characterised in that：Junction steel plate under rubber support（1）With Upper close connection rubber support main body（2）, rubber support main body（2）Close connection rubber support upper junction plate above（4）, rubber Bearing upper junction plate（4）With vertical energy consumer lower connecting plate（5）Pass through connecting bolt（3）It is close to connect, connect under vertical energy consumer Fishplate bar（5）With lateral Displacement ring（9）Pass through interior connecting bolt a（6）Close connection, resistance to plucking piston（10）With connecting under vertical energy consumer Fishplate bar（5）Pass through resistance to plucking connecting bolt（8）Close connection, resistance to plucking cylinder（11）With resistance to plucking piston（10）Back-off is placed, resistance to plucking cylinder （11）Top pass through interior connecting bolt b（16）With vertical energy consumer upper junction plate（15）Close connection, under vertical energy consumer Connecting plate（5）, resistance to plucking cylinder（11）, lateral Displacement ring（9）And resistance to plucking piston（10）The area of space filled rubber bradyseism ring surrounded （7）, for reducing resistance to plucking cylinder（11）With vertical energy consumer lower connecting plate（5）Percussion, in resistance to plucking piston（10）Top leads to Over pressurizeed bolt（13）With taper type pressurization lid（14）It is attached, resistance to plucking piston（10）Top and taper type pressurization lid（14）It Between fill drag ring（12）, in pressurization bolt（13）Drag ring under pretightning force（12）By taper type pressurization lid（14）Extrude and radial direction Expansion, so as to extrude resistance to plucking cylinder（11）Wall.
3. 3. three-dimensional rubber earthquake isolating equipment according to claim 2, it is characterised in that：In pressurization bolt（13）Rubbed under pretightning force Wipe ring（12）By taper type pressurization lid（14）Extrude and be radially expanded, so as to extrude resistance to plucking cylinder（11）Wall, work as drag ring（12）With Resistance to plucking cylinder（11）During wall relative motion, rub earthquake energy, and vertical energy consumer power consumption mechanism is friction energy-dissipating.
4. 4. three-dimensional rubber earthquake isolating equipment according to claim 2, it is characterised in that：The resistance to plucking cylinder（11）With resistance to plucking piston （10）Back-off sets to form the spacing mechanism of resistance to plucking.
5. 5. three-dimensional rubber earthquake isolating equipment according to claim 1, it is characterised in that：The three-dimensional rubber earthquake isolating equipment is by rubber The vertical energy consumer of glue shock isolating pedestal and its top with Compact Mounts, vertical spacing and the function that consumes energy connects to form flexibility Tension mechanism.