Wind-resistant seismic isolation device

Abstract

Provided in the present invention is a wind-resistant seismic isolation device, the device comprising an upper support and a lower support which are fitted with each other, wherein corresponding replacement core cavities are provided in the center of the upper support and the center of the lower support; a replaceable core is arranged in each replacement core cavity, and an annular groove is formed in the middle of the replaceable core; and a sliding block having a width fitted with the diameter of the replaceable core is provided on a side surface of the lower support. The wind-resistant seismic isolation device for roads and bridges is easily subjected to various natural disasters and is thus damaged, such that a replaceable core is provided to prevent a device main body from being damaged; and an annular groove is provided in the middle of the replaceable core, and is a weak link in the device, such that the quality problem of a road and bridge support structure is prone to occur here, and the replaceable core is used instead of replacing the entire road and bridge.

Description

A wind-resistant and seismic isolation device Technical Field

[0001] The present invention relates to the technical field of wind-resistant and earthquake-isolating devices, and in particular to a wind-resistant and earthquake-isolating device. Background Art

[0002] Prior art CN211848883U - Wind-resistant bearing for bridges, prior art discloses a wind-resistant bearing for bridges, comprising a base and an upper bearing, wherein a middle bearing is fixedly connected to the side of the base near the upper bearing, a third groove is formed in the center of the middle bearing, and two first grooves are symmetrically formed on the side of the base away from the third groove, the inner sidewall of the third groove is slidably connected to a first plate, the outer sidewall of the first plate is slidably connected to the first groove, and the inner wall of the first groove and the outer sidewall of the first plate are fixedly connected to a fourth rod; when the upper half of the wind-resistant bearing is input into the lower half of the wind-resistant bearing, the first plate is pressed downward by the extrusion of the upper half, and the cooperation between the first plate, the fourth rod, the rotating shaft, the third rod and other parts enables the lower half of the wind-resistant bearing to be tightly inserted into the upper half of the wind-resistant bearing. The problem of the prior art is that the internal structure of the wind-resistant bearing is complex and the stability is poor. The wind-resistant bearing does not have the corresponding resistance to earthquakes and other disasters, and it is difficult to replace the wind-resistant bearing after it is damaged.

[0003] Summary of the Invention

[0004] The present invention provides a wind-resistant and earthquake-isolating device, which includes an upper support and a lower support that cooperate with each other. The upper support and the lower support have corresponding core replacement cavities in their centers. The core replacement cavity is provided with a replaceable core body, and the replaceable core body has an annular groove in the middle. The side of the lower support is provided with a sliding block with a width that matches the diameter of the replaceable core body. The wind-resistant and earthquake-isolating device of roads and bridges is easily damaged by various natural disasters. By providing a replaceable core body, the device body is protected from being damaged. The replaceable core body has an annular groove in the middle. The annular groove is a weak link in the device, and quality problems of the road and bridge support structure are likely to occur here, instead of replacing the entire road and bridge.

[0005] Preferably, the length of the replaceable core is greater than the sum of the depth of the upper support replacement core cavity and the depth of the lower support replacement core cavity.

[0006] The replaceable core needs to bear the main loads of the upper and lower supports. Therefore, the annular groove in the replaceable core is used as a weak link to detect damage to the road and bridge structure caused by external forces. By replacing the replaceable core, the entire device, the road, bridge and its supporting structure as a whole can be repaired and replaced.

[0007] Preferably, the sliding block body has a concave arc surface on the side close to the replaceable core, and the arc radius matches the radius of the replaceable core. The sliding block body has a convex arc surface on the end away from the replaceable core, and the arc radius matches the radius of the device.

[0008] If the replaceable core has quality problems or breaks in the middle ring groove due to external factors, the original replaceable core can be removed by moving the sliding block and the replacement part can be inserted.

[0009] Preferably, the upper support is provided with a plurality of fan-shaped arc grooves, and the lower support is provided with a plurality of fan-shaped annular protrusions. When the replaceable core is damaged, the fan-shaped arc grooves and the fan-shaped annular protrusions temporarily replace the replaceable core to movably fix the upper and lower supports of the device.

[0010] Preferably, the cross section of the annular groove in the middle of the replaceable core is triangular. Annular grooves with conical cross sections are more susceptible to stress concentration damage caused by lateral vibration and can better reflect the quality of roads and bridges.

[0011] Preferably, the height of the protruding portion of the annular protrusion is close to the width of the annular groove in the middle of the replaceable core. After the replaceable core breaks, the annular protrusion of the lower support needs to be partially inserted into the arc groove of the upper support for temporary fixation to prevent the upper road and bridge from directly detaching.

[0012] Preferably, the center line of the circular arc groove and the center line of the annular protrusion are on the same circumference, the position of the annular protrusion matches the position of the circular arc groove, and the size of the annular protrusion is smaller than the size of the annular groove.

[0013] The annular protrusion only needs to be temporarily fixed with the arc groove to prevent the upper road and bridge from directly detaching. The small-sized annular protrusion facilitates the cooperation between the protrusion and the annular groove, and retaining the gap between the arc groove and the protrusion can also avoid subsequent secondary damage.

[0014] Preferably, the upper and lower supports are provided with reinforcing ribs around their circumferences to connect them to the concrete structure of the road and bridge. The reinforcing ribs are in the shape of right-angled trapezoids, and the connection between the reinforcing ribs and the concrete structure is a right-angled side. The upper support needs to be closely aligned with the upper road and bridge, while the lower support needs to cooperate with the road and bridge piers, while also bearing the weight of daily traffic. The reinforcing ribs of the upper support need to be closely aligned with the upper road and bridge, while the reinforcing ribs of the lower support need to cooperate with the road and bridge piers. The right-angled trapezoidal reinforcing ribs have a thickness to set up the joint.

[0015] Preferably, one end of the replaceable core is provided with a wing portion, the wing portion is a flat end surface provided with a plurality of connection holes. The replaceable core can be replaced and fixed through the wing portion connection holes.

[0016] The beneficial effects of the present invention are that the device has a simple structure and the replaceable core can be replaced after being damaged, avoiding the dismantling and replacement of the entire device; by breaking the replaceable core, the quality safety of roads and bridges is guaranteed and the damage to roads and bridges caused by subsequent vibrations in the event of natural disasters such as earthquakes is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG1 is a schematic structural diagram of a wind-resistant and seismic isolation device;

[0018] FIG2 is a front view of a wind-resistant and seismic isolation device;

[0019] FIG3 is a cross-sectional view of a wind-resistant and seismic isolation device;

[0020] FIG4 is a cross-sectional view of a lower support of a wind-resistant and seismic isolation device;

[0021] FIG5 is a cross-sectional view of an upper support of a wind-resistant and seismic isolation device;

[0022] FIG6 is a schematic structural diagram of a sliding block of a wind-resistant and seismic isolation device.

[0023] Legend: 1. Reinforcement rib; 2. Upper support; 3. Sliding block; 4. Replaceable core; 5. Annular protrusion; 6. Lower support; 7. Annular groove; 8. Replacement core cavity; 9. Bolt hole; 10. Arc groove. DETAILED DESCRIPTION

[0024] The following will provide a clear and complete description of the technical solutions of the embodiments of the present invention in conjunction with the accompanying drawings of the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0025] As shown in Figures 1 and 3, a structural schematic diagram of a wind-resistant and seismic isolation device is shown. The device includes an upper support 2 and a lower support 6 that cooperate with each other. The upper support and the lower support are both provided with 6 reinforcing ribs 1 that are evenly arranged around the circumference. The side surfaces of the reinforcing ribs are right-angled trapezoids, and the connections with the road and bridge structures outside the device are right-angled sides. The reinforcing ribs of the upper support need to cooperate closely with the upper road and bridge, and the reinforcing ribs of the lower support need to cooperate with the road piers and bridge piers. The right-angled trapezoidal reinforcing ribs can be left with thickness to set the joint.

[0026] An empty groove is provided on the side wall of the lower support to set the sliding block 3. The sliding block has a concave arc surface on the side close to the replaceable core, and the arc radius matches the radius of the replaceable core. The sliding block body has a convex arc surface on the end away from the replaceable core, and the arc radius matches the radius of the device.

[0027] The sliding block is provided with a wing at one end away from the replaceable core. The wing is straight and symmetrical in end surface and is provided with two bolt holes 9 arranged up and down to facilitate the connection of the sliding block with the lower support through bolts.

[0028] As shown in Figures 2 and 3, a front view of a wind-resistant and seismic isolation device is shown. The contact surface of the lower support close to one end of the upper support is provided with a fan-shaped annular protrusion, and the protruding height of the annular protrusion of the lower support is close to the width of the annular groove in the middle of the replaceable core.

[0029] Corresponding core replacement cavities 8 are provided in the centers of the upper and lower supports; a replaceable core body 4 is provided in the core replacement cavity, and the length of the replaceable core body is greater than the sum of the depths of the upper support core replacement cavity and the lower support core replacement cavity; an annular groove 7 is provided in the middle of the replaceable core body, and the cross-section of the annular groove in the middle of the replaceable core body is triangular.

[0030] A replaceable core is provided to replace the main body of the device, and a triangular ring groove with a cross section is provided in the middle of the replaceable core. The conical ring groove is the weak link in the device. The road and bridge supporting structures are prone to quality problems due to stress concentration here. Then, the replaceable core 4 is replaced instead of the entire road and bridge.

[0031] The height of the protruding portion of the annular protrusion of the lower support is close to the groove width of the annular groove in the middle part of the replaceable core.

[0032] As shown in Figure 4, the lower support 6 is provided with three fan-shaped annular protrusions with a geometric center interval of 120 degrees and an arc length of 30 degrees. The lower support portion of the cylindrical refill cavity 8 is provided at the geometric center of the lower support.

[0033] The center line of the arc groove and the center line of the annular protrusion are on the same circumference, the position of the annular protrusion matches the position of the arc groove, the cross-sectional size of the annular protrusion 5 is smaller than the cross-sectional size of the annular groove, and the annular protrusion only needs to be temporarily fixed with the arc groove to avoid direct separation of the upper road and the bridge. The small-sized annular protrusion facilitates the cooperation between the protrusion and the arc groove, and retaining the gap between the arc groove and the protrusion can also avoid subsequent secondary damage.

[0034] A slot with a width equal to the diameter of the refill cavity is formed between the fan-shaped annular protrusions of the lower support, connecting the outside with the refill cavity, and a sliding block 3 is provided in the slot.

[0035] As shown in Figure 5, the upper support 2 is provided with three circular arc grooves of fan ring shape with a geometric center interval of 120 degrees and a length of 32 degrees. The upper support 2 is provided with an upper support portion of a cylindrical core replacement cavity 8 at its geometric center.

[0036] The upper support has an empty slot with a width equal to the diameter of the refill cavity between the fan-shaped arc slots, connecting the outside with the refill cavity, and a sliding block 3 is provided in the empty slot.

[0037] If the replacement core 4 breaks, the annular protrusion and the arc groove cooperate to temporarily secure the upper and lower supports, preventing the upper support 2 from being directly separated from the road and bridge structure. After the cause of the damage to the replacement core 4 is resolved, the bolts securing the sliding blocks 3 of the upper and lower supports are removed, the sliding blocks are removed, and the replacement core is replaced.

[0038] As shown in Figure 6, the sliding block 3 has a concave arc surface at one end close to the replaceable core, and the arc radius matches the radius of the replaceable core. The sliding block 3 has a convex arc surface at one end away from the replaceable core, and the arc radius matches the radius of the device.

[0039] The side of the slider closest to the replaceable core has a concave arc surface, the radius of which matches the radius of the replaceable core. The end of the slider body, away from the replaceable core, has a convex arc surface, the radius of which matches the radius of the device. The end away from the replaceable core has a wing with a straight end surface and two symmetrically arranged bolt holes 9, which facilitate bolt connection between the slider and the lower support.

[0040] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A wind-resistant and seismic isolation device, characterized in that: The device comprises an upper support (2) and a lower support (6) which cooperate with each other, and a core replacement cavity (8) corresponding to the position is provided at the center of the upper support and the lower support; The core replacement cavity is provided with a replaceable core body (4), and a ring groove (7) is opened in the middle of the replaceable core body; A sliding block (3) having a width matching the diameter of the replaceable core is provided on the side surface of the lower support.

2. A wind-resistant and seismic isolation device according to claim 1, characterized in that: The length of the replaceable core is greater than the sum of the depth of the upper support replacement core cavity and the depth of the lower support replacement core cavity.

3. The wind-resistant and seismic isolation device according to claim 1, characterized in that: The sliding block has a concave arc surface on one side close to the replaceable core, and the arc radius matches the radius of the replaceable core. The sliding block body has a convex arc surface on one end away from the replaceable core, and the arc radius matches the radius of the device.

4. The wind-resistant and seismic isolation device according to claim 1, characterized in that: The upper support is provided with a plurality of fan-shaped circular arc grooves (10), and the lower support is provided with a plurality of fan-shaped annular protrusions (5).

5. The wind-resistant and seismic isolation device according to claim 2, characterized in that: The cross section of the annular groove in the middle of the replaceable core is triangular.

6. The wind-resistant and seismic isolation device according to claim 4, characterized in that: The height of the protruding portion of the annular protrusion is close to the groove width of the annular groove in the middle part of the replaceable core body.

7. The wind-resistant and seismic isolation device according to claim 4, characterized in that: The center line of the circular arc groove and the center line of the annular protrusion are on the same circumference, the position of the annular protrusion matches the position of the circular arc groove, and the cross-sectional size of the annular protrusion is smaller than the cross-sectional size of the circular arc groove.

8. A wind-resistant and seismic isolation device according to any one of claims 1 to 7, characterized in that: The upper support and the lower support are provided with reinforcing ribs (1) on their circumferences for connection with the concrete structure of the road bridge. The reinforcing ribs are in the shape of right-angled trapezoids, and the connection between the reinforcing ribs and the concrete structure is a right-angled side.

9. The wind-resistant and seismic isolation device according to claim 1, characterized in that: One end of the replaceable core is provided with a wing portion, and the wing portion is a straight end surface provided with a plurality of connection holes.

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