1. A stay cable built-in tensile shock insulation support is characterized by comprising a shock insulation support body (1), wherein the shock insulation support body (1) is formed by alternately laminating and bonding a plurality of layers of steel plates and a plurality of layers of rubber;

the upper end and the lower end of the shock insulation support body (1) are respectively connected with a first connecting plate (2) and a second connecting plate (3) through a plurality of bolts;

the bottom of the second connecting plate (3) is fixedly connected with an embedded part (5) embedded in concrete (4) in advance;

the shock insulation support body (1) is internally provided with a tensile cable (6), and two ends of the tensile cable (6) are respectively connected with the first connecting plate (2) and the second connecting plate (3).

2. The inhaul cable built-in tensile seismic isolation bearing as claimed in claim 1,

the center of the shock insulation support body (1) is provided with a through hole (101) for accommodating the tensile cable (6).

3. The inhaul cable built-in tensile seismic isolation bearing as claimed in claim 1,

tensile cable (6) both ends pass through connector (7) respectively with first connecting plate (2) with second connecting plate (3) are connected.

4. The inhaul cable built-in tensile seismic isolation bearing as claimed in claim 3, wherein,

the connectors (7) are all universal joints.

5. The inhaul cable built-in tensile seismic isolation bearing as claimed in claim 3, wherein,

tensile cable (6) are the annular cable, wear in connector (7).

6. The inhaul cable built-in tensile seismic isolation bearing as claimed in claim 1,

the shock insulation support body (1) is provided with a plurality of lead core holes (8) in a penetrating mode around the circle center.

Background

China is one of the countries with the strongest earthquake activities and the most serious earthquake disasters in the world. The shock insulation rubber support is applied to various house buildings, highway bridges and structural reinforcement, adopts the excellent bonding of the alternate superposition of multiple layers of steel plates and multiple layers of rubber, and has a series of advantages of good horizontal performance, damping coefficient, vertical performance, vertical bearing capacity and the like. However, the shock insulation rubber support has the characteristic of poor vertical tensile capacity, and when the shock insulation layer support is pulled to be in yielding, the whole structure can be overturned and damaged. Therefore, in the 12.2.4 th article of the national standard GB50011-2001 building earthquake-proof design Specification, the first article clearly stipulates that the rubber support of the earthquake-isolating layer is not suitable for generating tensile force under the action of rare earthquakes. However, in some buildings, the tensile stress of the shock insulation support under the action of rare earthquakes is a normal phenomenon, and many buildings or bridges have the tensile stress. Therefore, the use range and the popularization and application of the shock insulation rubber support are limited by the deficiency of the shock insulation rubber support.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the stay cable built-in tensile shock insulation support which has larger vertical bearing capacity and tensile overturn prevention function. The technical scheme adopted by the invention is as follows:

a stay cable built-in tensile shock insulation support comprises a shock insulation support body, wherein the shock insulation support body is formed by alternately laminating and bonding a plurality of layers of steel plates and a plurality of layers of rubber;

the upper end and the lower end of the shock insulation support body are respectively connected with a first connecting plate and a second connecting plate through a plurality of bolts;

the bottom of the second connecting plate is fixedly connected with an embedded part embedded in concrete in advance;

the shock insulation support body is internally provided with a tensile cable, and two ends of the tensile cable are respectively connected with the first connecting plate and the second connecting plate.

Furthermore, a through hole is formed in the center of the isolation bearing body and used for containing the tensile inhaul cable.

Furthermore, the tensile cable both ends pass through the connector respectively with first connecting plate with the second connecting plate is connected.

Furthermore, the connectors are all universal joints.

Furthermore, the tensile inhaul cable is an annular inhaul cable and penetrates through the connector.

Furthermore, a plurality of lead core holes are formed in the shock insulation support body in a penetrating mode around the circle center.

The invention has the advantages that:

1) this tensile isolation bearing's isolation bearing body center sets up the tensile cable, and when isolation bearing met with rare earthquake horizontal displacement and reach the limit, connector production mutual resistance effort about the tensile cable is connected when producing ascending pulling force to at vertical direction restriction relative displacement, play the tensile and prevent toppling the effect.

2) The connector on this tensile isolation bearing is universal joint, and isolation bearing each direction displacement can not receive the hindrance.

3) The tensile shock insulation support is simple and reliable in structure and convenient to install.

Drawings

FIG. 1 is a schematic structural diagram of a cable built-in tensile seismic isolation bearing in the embodiment of the invention in a normal state.

Fig. 2 is a schematic structural diagram of a guy cable built-in tensile seismic isolation support connector in the embodiment of the invention.

FIG. 3 is a front view of a tension cable built-in tension-resistant vibration-isolating support in the embodiment of the invention.

FIG. 4 is a side view of a tension cable built-in tension-resistant seismic isolation bearing in the embodiment of the invention.

FIG. 5 is a schematic structural diagram of a stay cable built-in tensile seismic isolation bearing in the embodiment of the invention in a stretching state.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, the stay cable built-in tensile isolation bearing provided by the embodiment of the invention comprises an isolation bearing body 1, wherein the isolation bearing body 1 is formed by alternately laminating and bonding a plurality of layers of steel plates and a plurality of layers of rubber, and has a series of advantages of good horizontal performance, good damping coefficient, good vertical performance, good vertical bearing capacity and the like; the upper end and the lower end of the shock insulation support body 1 are respectively connected with a first connecting plate 2 and a second connecting plate 3 through a plurality of bolts; the bottom of the second connecting plate 3 is fixedly connected with an embedded part 5 embedded in concrete 4 in advance; a tensile cable 6 is arranged inside the shock insulation support body 1, and two ends of the tensile cable 6 are respectively connected with the first connecting plate 2 and the second connecting plate 3; the shock insulation support body 1 is provided with a plurality of lead core holes 8 in a penetrating mode around the circle center, and the performance requirements of the lead core support are met.

Specifically, the center of the vibration isolation support body 1 is provided with a through hole 101 for accommodating the tensile cable 6, and after the installation is finished, the tensile cable 6 is not exposed outside the vibration isolation support, so that the concealment performance and the corrosion resistance are obvious; two ends of the tensile cable 6 are respectively connected with the first connecting plate 2 and the second connecting plate 3 through connectors 7, and the connectors 7 are respectively an upper connector and a lower connector; the connectors 7 are all universal joints, and as shown in fig. 2, displacement of the shock insulation support in all directions cannot be hindered.

Specifically, as shown in fig. 3 and 4, the tensile cable 6 is an annular cable, penetrates through the connector 7, and is in a folded spring shape in a free state.

When the anti-overturning device is used, as shown in fig. 1 and 5, when the horizontal displacement of the seismic isolation support subjected to a rare earthquake reaches the limit and upward pulling force is generated, the upper connector and the lower connector connected with the tensile inhaul cable 6 generate mutual resisting acting force, so that the relative displacement is limited in the vertical direction, and the tensile anti-overturning effect is achieved.

Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.