CN206157560U - Multi-stage self-resetting-flexible limiting shock isolation system - Google Patents

Abstract

The utility model discloses a multi-stage self-resetting-flexible limit shock-isolation system, comprising a structure to be damped (1) and a basic structure (2), and a plurality of multi-stage self-reset shock-isolation supports between the two and a plurality of flexible space-limiting shock-isolation bearings are arranged at intervals to form a shock-isolation system. The basic components include a high-damping rubber body (3), a sliding plate (4) and a fixed plate (5). The fixed plate (5) is fixedly installed on On the basic structure (2), the sliding plate (4) can slide along the upper surface of the fixed plate (5) and be fixed on the lower end of the high damping rubber body (4); the high damping rubber body (4) in the foundation component It is fixed under the upper connecting plate (7) to form a multi-stage self-resetting shock-isolation support; after the horizontal limit stopper (8) is set on the lower end surface of the structure to be damped (1), it forms a flexible limiter with the basic components. Bit isolation support. The shock-isolation system of the utility model can reduce the damage of the shock-isolation layer in strong earthquakes, is safe and reliable, is convenient for installation and maintenance, and has a wide application range.

Description

A multi-stage self-resetting-flexible limit isolation system

technical field

The utility model relates to the field of shock isolation technology, in particular to a multi-stage self-resetting-flexible limit shock-isolation system based on self-resetting performance and flexible limit technology.

Background technique

The current technology of seismic isolation bearings is relatively mature, and the research focus has begun to shift to the development of new composite seismic isolation systems to meet higher seismic requirements, but there are still unresolved problems: (1) With the development of the economy, a single Seismic isolation bearings have been difficult to meet the needs of building anti-seismic performance, and it is urgent to develop a new seismic isolation system to withstand earthquakes under different intensities; (2) Some new composite seismic isolation systems currently proposed are still under research. There is no specific conclusion on its self-resetting ability, and the failure of the isolation layer caused by the damage of the limit stopper of the isolation support or the excessive horizontal displacement has not yet been solved; (3) Although some composite isolation systems have shown in the research It has better performance, but the structure design is complicated, the installation is difficult, and there are still some problems in the actual engineering application. Therefore, it is the focus of current research and development to develop a new composite seismic isolation system, which has good self-resetting ability and ensures that the seismic isolation layer continues to play a role in the earthquake process.

Contents of the invention

The purpose of the utility model is to provide a multi-level self-resetting-flexible limit shock isolation system based on self-reset performance and flexible limit technology to solve the problems existing in the prior art.

The purpose of this utility model is solved by the following technical solutions:

A multi-stage self-resetting-flexible limit shock-isolation system, including an upper structure to be damped and a lower base structure, characterized in that: multiple multi-level self-reset structures between the structure to be damped and the base structure The seismic isolation support and multiple flexible limit isolation supports are arranged at intervals to form a seismic isolation system. Both the multi-stage self-resetting isolation support and the flexible limit isolation support include a high-damping rubber body, a sliding plate and a fixed plate. , wherein the fixed plate is fixedly installed on the basic structure, the sliding plate can slide along the upper surface of the fixed plate and the sliding plate is fixed on the lower end of the high damping rubber body, on the basis of the above components, the high damping rubber body is fixed on the The lower part of the upper connecting plate and fixing the upper connecting plate on the structure to be damped constitutes a multi-stage self-resetting shock-isolation support; on the basis of the above components, a high damping is set on the lower end surface of the structure to be damped The horizontal limit block of the movement range of the rubber body and the vertical gap between the upper end surface of the high-damping rubber body and the bottom surface of the structure to be damped above can form a flexible limit shock-isolation support.

The upper end surface and the lower end surface of the high damping rubber body are respectively provided with grooves for fixing the upper sealing plate and the lower sealing plate, the upper end surface of the upper sealing plate is flush with the upper end surface of the high damping rubber body and the lower sealing plate The lower end surface of the plate is flush with the lower end surface of the high damping rubber body.

The sliding plate is fixedly embedded in the sealing plate groove provided on the lower end surface of the lower sealing plate, so that the sliding plate can not move relative to the high damping rubber body.

The upper sealing plate, the lower sealing plate and the high damping rubber body are integrally vulcanized.

The upper sealing plate in the multi-stage self-resetting shock-isolation support is fixedly connected with the upper connecting plate through bolts.

When the high-damping rubber body in the flexible space-limiting shock-isolation support is provided with a limit mechanism, the limit mechanism is fixedly arranged on the upper end surface of the upper sealing plate, and at this time the upper end surface of the high-damping rubber body is lower than the horizontal limit. The lower end surface of the stopper is used to expand the horizontal movement range of the high damping rubber body.

A vertical gap is provided between the upper end surface of the limiting mechanism and the bottom surface of the above structure to be damped.

The sliding plate is made of polytetrafluoroethylene, the fixed plate is made of mirror glass fiber reinforced plastic, and the coefficient of dynamic friction between the opposing surfaces of the sliding plate and the fixed plate is not less than 0.15.

Connection holes are reserved on the upper connection plate for fixed connection with the structure to be damped.

Compared with the prior art, the utility model has the following advantages:

The utility model arranges the multi-level self-resetting bearing and the flexible limit seismic isolation bearing together on the seismic isolation layer, and exerts their respective performances in the face of earthquakes of different intensities to protect the upper structure; when encountering frequent fortification intensity levels, Under normal and rare earthquakes, the high-damping rubber bearing’s excellent self-adaption ability is fully utilized to provide shock isolation performance for the upper structure and has good self-resetting ability. At the same time, the limit mechanism has enough reserved space, There is no collision between the two, and the soft limit mechanism has no effect; when encountering a strong earthquake with a super-fortified intensity, the lower sliding surface slides to avoid excessive horizontal displacement of the high-damping rubber and cause irreversible excessive deformation and damage. The horizontal limit block is in contact with the high-damping rubber body or the limit mechanism, and at this time, the lower vibration-isolation bearing is driven to generate shear horizontal deformation; when subjected to an earthquake, even if the high-damping rubber When the seismic performance is reduced or even fails, due to the existence of the flexible limit bearing, it can still provide effective seismic isolation effect, avoid the overall failure of the seismic isolation layer, and greatly increase the seismic performance of the upper structure.

The utility model constitutes a new type of shock-isolation system by collocating a flexible limit shock-isolation support in a multi-stage self-resetting shock-isolation support. Compared with a single composite shock-isolation support, its shock-isolation performance is more comprehensive and provides Excellent resetting ability solves the problem of failure of the isolation layer during strong earthquakes. Compared with some complex composite isolation bearings, the isolation support of the isolation system itself is not complicated. The two types of bearings are combined Collocation arrangement in the isolation layer improves the isolation effect of the isolation layer, ensures that the isolation layer can continue to exert its isolation performance during the earthquake, reduces the possibility of damage to the isolation layer during strong earthquakes, and greatly improves the strength of the upper structure. Safety, the seismic isolation system is safe and reliable, easy to install, replace and maintain, and has a wide range of applications. It can be effectively applied to various construction projects and is suitable for use in actual projects.

Description of drawings

Accompanying drawing 1 is the structure schematic diagram of multistage self-resetting-flexible limit shock-isolation system of the present invention.

Among them: 1—structure to be damped; 2—basic structure; 3—high damping rubber body; 4—sliding plate; 5—fixed plate; 6—connecting hole; 7—upper connecting plate; 8—horizontal limit block ; 9—upper sealing plate; 10—lower sealing plate; 11—bolt; 12—limiting mechanism.

detailed description

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

As shown in Figure 1: a multi-level self-resetting-flexible limit isolation system, including the upper structure 1 to be damped and the base structure 2 below, and multiple structures between the structure 1 to be damped and the base structure 2 Multi-stage self-resetting shock-isolation bearings and multiple flexible limit shock-isolation bearings are arranged at intervals to form a shock-isolation system. The moving plate 4 and the fixed plate 5, wherein the fixed plate 5 is fixedly installed on the base structure 2, the sliding plate 4 can slide along the upper surface of the fixed plate 5 and the sliding plate 4 is fixed on the lower end of the high damping rubber body 3, the sliding The moving plate 4 is made of polytetrafluoroethylene, the fixed plate 5 is made of mirror glass fiber reinforced plastic, and the coefficient of dynamic friction between the opposite surfaces of the sliding plate 4 and the fixed plate 5 is not less than 0.15. On the basis of the above components, the high damping rubber The main body 3 is fixed under the upper connecting plate 7 and the upper connecting plate 7 is fixed on the structure 1 to be damped to form a multi-stage self-resetting shock-isolation support; A horizontal limit block 8 for limiting the moving range of the high damping rubber body 3 is set on the end face, and a vertical gap is provided between the upper end surface of the high damping rubber body 3 and the bottom surface of the structure 1 to be damped above to form a flexible Limit vibration isolation support. In the above-mentioned shock isolation system, the upper end surface and the lower end surface of the high damping rubber body 3 are respectively provided with grooves for fixing the upper sealing plate 9 and the lower sealing plate 10, and the upper end surface of the upper sealing plate 9 and the high damping rubber body 3 and the lower end surface of the lower sealing plate 10 is flush with the lower end surface of the high damping rubber body 3, and the upper sealing plate 9, the lower sealing plate 10 and the high damping rubber body 3 are integrally vulcanized; at the same time, the sliding plate 4 is fixed It is embedded in the groove of the sealing plate provided on the lower end surface of the lower sealing plate 10, so that the sliding plate 4 can move relatively to the high damping rubber body 3, and the connecting hole 6 is reserved on the upper connecting plate 7 to be used for shock absorption The structure 1 is fixedly connected, and the upper sealing plate 10 in the multi-stage self-resetting shock-isolation support is fixedly connected to the upper connecting plate 7 through bolts 11 .

On the basis of the above structure, when the high damping rubber body 3 in the flexible limit shock-isolating support is provided with a limit mechanism 12, the limit mechanism 12 is fixedly arranged on the upper end surface of the upper sealing plate 9, and at this time the height The upper end surface of the damping rubber body 3 is lower than the lower end surface of the horizontal limit block 8 to expand the horizontal movement range of the high damping rubber body 3; There is a vertical gap.

Before using the shock isolation system of the utility model, select the sliding plate 4 and the fixed plate 5 with the corresponding friction coefficient according to the use requirements, and then connect the corresponding high damping rubber body 3, the sliding plate 4, the fixed plate 5, Plate 7, horizontal limit block 8, upper seal plate 9, lower seal plate 10, and limit mechanism 12 are assembled into corresponding multi-stage self-resetting shock-isolation bearings and flexible limit shock-isolation supports, and then the multi-stage self-resetting shock-isolation bearings are assembled into The reset shock-isolation support and the flexible limit shock-isolation support can be arranged between the shock-absorbing structure 9 and the basic structure.

The utility model arranges the multi-level self-resetting bearing and the flexible limit seismic isolation bearing together on the seismic isolation layer, and exerts their respective performances in the face of earthquakes of different intensities to protect the upper structure; when encountering frequent fortification intensity levels, Under normal and rare earthquakes, make full use of the excellent self-adaptive ability of the high-damping rubber bearing to provide shock-isolation performance for the upper structure and have good self-resetting ability. At the same time, the limit mechanism 12 has enough reserved space , the two do not collide, and the soft limit mechanism 12 does not work; when encountering a strong earthquake exceeding the fortification intensity, the lower sliding surface slides to avoid excessive horizontal displacement of the high-damping rubber, resulting in excessive deformation and unrecoverable damage, the horizontal limit block 8 is in contact with the high damping rubber body 3 or the limit mechanism 12, and at this time, the lower vibration isolation bearing is driven to generate shear horizontal deformation; when subjected to an earthquake, even if the high damping rubber bearing is too large When the horizontal displacement leads to the reduction or even failure of the seismic isolation performance, due to the existence of the flexible limit bearing, it can still provide effective seismic isolation effect, avoid the overall failure of the seismic isolation layer, and greatly increase the seismic performance of the upper structure.

The utility model constitutes a new type of shock-isolation system by collocating a flexible limit shock-isolation support in a multi-stage self-resetting shock-isolation support. Compared with a single composite shock-isolation support, its shock-isolation performance is more comprehensive and provides Excellent resetting ability solves the problem of failure of the isolation layer during strong earthquakes. Compared with some complex composite isolation bearings, the isolation support of the isolation system itself is not complicated. The two types of bearings are combined Collocation arrangement in the isolation layer improves the isolation effect of the isolation layer, ensures that the isolation layer can continue to exert its isolation performance during the earthquake, reduces the possibility of damage to the isolation layer during strong earthquakes, and greatly improves the strength of the upper structure. Safety, the seismic isolation system is safe and reliable, easy to install, replace and maintain, and has a wide range of applications. It can be effectively applied to various construction projects and is suitable for use in actual projects.

The above embodiments are only to illustrate the technical ideas of the utility model, and can not limit the protection scope of the utility model with this. All technical ideas proposed according to the utility model, any changes made on the basis of the technical solution, all fall into the scope of the utility model. Within the scope of protection of the new model; technologies not involved in the utility model can be realized by prior art.

Claims (9)

1. a kind of multistage Self-resetting-flexible limit vibration-isolating system, including top treats shock-damping structure（1）With the base structure of lower section （2）, it is characterised in that：Described treats shock-damping structure（1）And base structure（2）Between multiple multistage Self-resetting shock isolating pedestal and Multiple flexible limit shock isolating pedestal interval settings constitute vibration-isolating system, multistage Self-resetting shock isolating pedestal and flexible limit shock isolating pedestal All include high-damping rubber body（3）, sliding plate（4）And fixed plate（5）, wherein fixed plate（5）It is fixedly mounted on base structure （2）On, sliding plate（4）Can be along fixed plate（5）Upper surface slide and sliding plate（4）It is fixed on high-damping rubber body （3）Lower end, by by high-damping rubber body on the basis of above-mentioned part（3）It is fixed on upper junction plate（7）Lower section simultaneously By upper junction plate（7）It is fixed on and treats shock-damping structure（1）On constitute multistage Self-resetting shock isolating pedestal；On the basis of above-mentioned part By treating shock-damping structure（1）Lower surface on be provided for limit high-damping rubber body（3）The Horizontal limiting of moving range Block（8）And high-damping rubber body（3）Upper surface with its above treat shock-damping structure（1）Bottom surface between be provided with it is vertical between Gap may make up flexible limit shock isolating pedestal.

2. multistage Self-resetting-flexible limit vibration-isolating system according to claim 1, it is characterised in that：The high-damping rubber Glue body（3）Upper surface and lower surface be respectively equipped with fixation set upper sealing plate（9）With lower shrouding（10）Groove, the upper envelope Plate（9）Upper surface and high-damping rubber body（3）Upper surface flush and lower shrouding（10）Lower surface and high-damping rubber Glue body（3）Lower surface flush.

3. multistage Self-resetting-flexible limit vibration-isolating system according to claim 2, it is characterised in that：Described sliding plate （4）Fixation is embedded in lower shrouding（10）The shrouding groove that lower surface is arranged so that sliding plate（4）Can be with respect to high-damping rubber Body（3）It is motionless.

4. the multistage Self-resetting-flexible limit vibration-isolating system according to Claims 2 or 3, it is characterised in that：Described upper envelope Plate（9）, lower shrouding（10）With high-damping rubber body（3）It is overall to vulcanize.

5. multistage Self-resetting-flexible limit vibration-isolating system according to claim 2, it is characterised in that：The multistage runback Upper sealing plate in the shock isolating pedestal of position（10）By bolt（11）With upper junction plate（7）It is fixedly connected.

6. multistage Self-resetting-flexible limit vibration-isolating system according to claim 2, it is characterised in that：The flexible limit High-damping rubber body in shock isolating pedestal（3）It is provided with position-limit mechanism（12）When, position-limit mechanism（12）It is fixedly installed on envelope Plate（9）Upper surface on, and now high-damping rubber body（3）Upper surface be less than Horizontal limiting block（8）Lower surface with Expand high-damping rubber body（3）Horizontal moving ranges.

7. multistage Self-resetting-flexible limit vibration-isolating system according to claim 6, it is characterised in that：The position-limit mechanism （11）Upper surface with its above treat shock-damping structure（1）Bottom surface between be provided with vertical gap.

8. multistage Self-resetting-flexible limit vibration-isolating system according to claim 1, it is characterised in that：Described sliding plate （4）Made using politef, fixed plate（5）Using two-way mirror steel and sliding plate（4）And fixed plate（5）Both relative tables The coefficient of kinetic friction between face is not less than 0.15.

9. multistage Self-resetting-flexible limit vibration-isolating system according to claim 1, it is characterised in that：Described upper connection Plate（7）On be reserved with connecting hole（6）For with treat shock-damping structure（1）It is fixedly linked.