CN210712532U - Two-way post-earthquake self-resetting seismic mitigation and isolation support - Google Patents
Two-way post-earthquake self-resetting seismic mitigation and isolation support Download PDFInfo
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- CN210712532U CN210712532U CN201920722692.9U CN201920722692U CN210712532U CN 210712532 U CN210712532 U CN 210712532U CN 201920722692 U CN201920722692 U CN 201920722692U CN 210712532 U CN210712532 U CN 210712532U
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Abstract
A self-reset shock absorption and isolation support after bidirectional shock comprises an uphill panel, an upper seat plate, a middle seat plate, a lower seat plate and a downhill panel; the upper seat plate is arranged below the upper slope panel, the upper surface of the upper seat plate is provided with two slopes matched with the lower surface of the upper slope panel, the lower seat plate is arranged below the middle seat plate, the upper surface of the lower seat plate is provided with two slopes which are symmetrically arranged, and the upper part of the lower seat plate is provided with a cylindrical boss; the downhill panel is arranged below the lower seat plate, the upper surface of the downhill panel is provided with two slopes matched with the lower surface of the lower seat plate, and the lower surface of the downhill panel is a plane contacted with the cushion stone; the placing directions of the two slopes of the uphill panel and the two slopes of the downhill panel are vertical in a horizontal plane. The support enables structures such as bridges and buildings to return to the initial position and be normally used without being repaired after the structures are vibrated, and can be completely reset after the structures are vibrated and have a normal use function without being repaired.
Description
Technical Field
The utility model relates to an engineering structure vibration control technical field, what specifically say is a two-way shake back from restoring to throne subtract isolation bearing.
Background
Since the introduction of a friction pendulum seismic isolation bearing (FPB/FPS) by Zayas and the like in 1985, the friction pendulum seismic isolation bearing has been successfully applied to heavy engineering structures such as bridge engineering, nuclear power station engineering, large pressure vessels, some high-rise buildings, high-rise structures and the like for more than twenty years because of the advantages of strong self-limiting function, self-resetting capability, flat torsion resistance, low manufacturing cost, durability, simple construction, excellent seismic isolation and energy consumption mechanism and the like.
The FPB support cannot return to the initial position due to the existence of the friction coefficient and the horizontal restoring force of the support at the initial position is 0; after the earthquake happens, the support limiting device is damaged, and the support can perform normal functions only after being repaired.
In view of the above, there is a need to develop a seismic isolation and reduction support which has seismic isolation and reduction effects, can be completely restored after earthquake, and has normal use functions without repair.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem, the utility model provides a two-way shake back from restoring to throne subtract isolation bearing makes after the structures such as bridge, building shake can get back to initial position and can normal use through not restoreing, can restore to the throne completely and do not possess normal use function through restoreing after the while shakes.
In order to realize the technical purpose, the adopted technical scheme is as follows: a self-reset shock absorption and isolation support after bidirectional shock comprises an uphill panel, an upper seat plate, a middle seat plate, a lower seat plate and a downhill panel;
the upper surface of the uphill panel is a plane contacted with the beam bottom, and the lower surface of the uphill panel is two slopes which are symmetrically arranged;
the upper seat plate is arranged below the uphill panel, the upper surface of the upper seat plate is provided with two slopes matched with the lower surface of the uphill panel, the lower surface of the upper seat plate is a plane, and the lower part of the upper seat plate is provided with a cylindrical cavity;
the middle seat plate is arranged below the upper seat plate, the upper surface of the middle seat plate is a plane matched with the lower surface of the upper seat plate, and the lower surface of the middle seat plate is a convex spherical surface;
the lower seat plate is arranged below the middle seat plate, the upper surface of the lower seat plate is a concave spherical surface matched with the lower surface of the middle seat plate, the upper surface of the lower seat plate is provided with two slope surfaces which are symmetrically arranged, the upper part of the lower seat plate is provided with a cylindrical boss, the upper part of the lower seat plate is arranged in a cylindrical cavity of the upper seat plate, and a rotating gap is arranged between the lower part of the lower seat plate and the lower part of the upper seat plate;
the downhill panel is arranged below the lower seat plate, the upper surface of the downhill panel is provided with two slopes matched with the lower surface of the lower seat plate, and the lower surface of the downhill panel is a plane contacted with the cushion stone;
the placing directions of the two slopes of the uphill panel and the two slopes of the downhill panel are vertical in a horizontal plane.
Two sides of the two slopes of the uphill panel in the cross slope direction are respectively provided with a limiting plate, and the limiting plates of the uphill panel are in contact with the side surface of the upper part of the upper seat plate or are provided with sliding gaps.
Two sides of the two slopes of the downhill panel in the cross slope direction are respectively provided with a limiting plate, and the limiting plates of the downhill panel are in contact with the side surface of the lower part of the lower seat plate or are provided with sliding gaps.
The utility model has the advantages that:
1. the support has the advantages of simple structure, clear force transmission path and good durability, and when in normal use, the slope friction pair does not have relative movement in the up-down slope direction, and the support has the functions of vertical bearing, horizontal sliding and rotation.
2. Under the action of earthquake, the horizontal force exceeds the limit value, the upward slope surface friction pair and the downward slope surface friction pair respectively slide in the transverse bridge direction and the longitudinal bridge direction in a reciprocating mode in an upward slope mode and a downward slope mode, earthquake kinetic energy is converted into potential energy, the earthquake action is weakened, friction resistance is obtained in the reciprocating sliding process to dissipate earthquake force, the self-vibration period of the structure is prolonged, and the earthquake reduction and isolation effect is achieved.
3. After an earthquake, the support can completely automatically reset along the downhill directions of the longitudinal bridge direction and the transverse bridge direction under the action of gravity, has a normal use function without repair, and is suitable for major shock insulation engineering structures.
Drawings
FIG. 1 is a fixed self-resetting seismic isolation and reduction support of the utility model;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 1;
FIG. 4 is a sectional view of the longitudinal movable self-resetting seismic isolation and reduction support of the present invention;
FIG. 5 is a B-B sectional view of the longitudinally movable self-resetting seismic isolation and reduction support of the present invention;
FIG. 6 is a cross-sectional view of the multi-directional movable self-resetting seismic isolation and reduction support of the present invention;
FIG. 7 is a B-B sectional view of the multi-directional movable self-resetting seismic isolation and reduction support of the present invention;
fig. 8 is a schematic structural view of an uphill panel according to the present invention;
fig. 9 is a schematic structural view of the upper seat plate of the present invention;
fig. 10 is a schematic structural view of the lower seat plate of the present invention;
in the figure: 1. the slope-climbing type sliding plate comprises an upward slope surface plate, 2 an upward slope surface metal sliding plate, 3 an upward slope surface nonmetal sliding plate, 4 an upper seat plate, 5 a plane metal sliding plate, 6 a plane nonmetal sliding plate, 7 a middle seat plate, 8 a downward slope surface plate, 9 a downward slope surface metal sliding plate, 10 a downward slope surface nonmetal sliding plate, 11 a lower seat plate, 12 a spherical surface nonmetal sliding plate, 13 a spherical surface metal sliding plate.
Detailed Description
A self-resetting seismic mitigation and isolation support after double-seismic mainly comprises an uphill panel 1, an uphill metal sliding plate 2, an uphill nonmetal sliding plate 3, an uphill panel 4, a plane metal sliding plate 5, a plane nonmetal sliding plate 6, a middle panel 7, a downhill panel 8, a downhill metal sliding plate 9, a downhill nonmetal sliding plate 10, a lower panel 11, a spherical nonmetal sliding plate 12 and a spherical metal sliding plate 13. An upward slope panel 1, an upper seat plate 4, a middle seat plate 7, a downward slope panel 8 and a lower seat plate 11 are arranged in sequence from top to bottom.
The upper surface of the uphill panel 1 is a plane and is contacted with the beam bottom, the other surface of the uphill panel is two symmetrical slopes for mounting an uphill metal sliding plate 2, and two sides perpendicular to the placing direction of the two slopes of the uphill panel 1 are respectively provided with a limiting plate; the lower surface of the downhill panel 8 is a plane and is contacted with the pad stone, the other side of the downhill panel is two symmetrical slopes for mounting a downhill metal sliding plate 9, and one side of the downhill panel 8 is provided with a limiting plate; the uphill panel 1 and the downhill panel 8 have the same structure, and the placing direction is vertical in the horizontal plane.
The upper surface of the upper seat plate 4 is provided with two symmetrical slopes, is matched with the lower surface of the upper slope panel 1, is provided with an upper slope non-metal sliding plate 3, and forms an upper slope friction pair with the upper slope metal sliding plate 2; the lower part of the upper seat plate 4 is a cylindrical cavity, a plane metal sliding plate 5 is arranged on the bottom surface of the cavity, and an annular boss of the cavity is matched with a cylindrical boss of the lower seat plate 11 and a proper rotating gap is reserved.
Two sides of the two slopes of the upward slope panel 1 in the cross slope direction are respectively provided with a limiting plate, and the limiting plates of the upward slope panel 1 are in contact (clearance fit) with the side surface of the upper part of the upper seat plate 4 or are provided with sliding clearances. As shown in fig. 9, the upper portion of the upper seat plate 4 is provided with square wing plates around, which are matched with the limit plate of the uphill panel 1 with a proper gap. The upper part of the upper seat plate can also be processed into other structures, so that the displacement can be ensured when the upper seat plate is in contact with the upper seat plate and is limited and not in contact with the upper seat plate.
The upper surface of the lower seat plate 11 is processed with a concave spherical surface for mounting a spherical non-metallic sliding plate 12, the other surface is two symmetrical slopes which are matched with the upper surface of the downhill panel 8 for mounting a downhill non-metallic sliding plate 10, and the downhill non-metallic sliding plate 9 and the downhill metallic sliding plate form a downhill friction pair.
Two sides of the two slopes of the downhill panel 8 in the cross-slope direction are respectively provided with a limiting plate, and the limiting plates of the downhill panel 8 are in contact with (clearance fit with) the lower side of the lower seat plate 11 or are provided with a sliding clearance. As shown in fig. 10, square wing plates are processed around the lower part of the lower seat plate to match with the limit plate of the downhill panel 8 with a proper gap. The motion direction of the friction pair on the upper slope surface is vertical to that of the friction pair on the lower slope surface. The lower part of the lower seat plate can be processed into other structures, so that the lower seat plate can be limited when in contact and can move when not in contact.
The upper surface of the middle seat plate 7 is provided with a plane groove for mounting the plane metal sliding plate 5, and the plane groove and the plane metal sliding plate 5 form a plane friction pair; the lower surface is a convex spherical surface and is used for installing a spherical metal sliding plate 13 to form a spherical friction pair with a surface non-metal sliding plate 12.
The present invention will be further described with reference to the following examples, but the present invention is not limited to the following examples.
Example 1
The self-resetting seismic mitigation and isolation support after the bidirectional earthquake belongs to a fixed support, and mainly comprises an uphill panel 1, an uphill metal sliding plate 2, an uphill nonmetal sliding plate 3, an uphill panel 4, a plane metal sliding plate 5, a plane nonmetal sliding plate 6, a middle panel 7, a downhill panel 8, a downhill metal sliding plate 9, a downhill nonmetal sliding plate 10, a lower panel 11, a spherical nonmetal sliding plate 12, a spherical metal sliding plate 13 and the like as shown in figures 2 and 3. The support uphill panel 1 is connected with the beam body, and the support downhill panel 8 is connected with the abutment. An upper slope surface metal sliding plate 2 welded at the slope surface of the upper slope surface plate 1 and an upper slope surface nonmetal sliding plate 3 embedded on the upper seat plate 4 form an upper slope surface friction pair; a downhill surface metal sliding plate 9 welded at the slope of the downhill surface plate 8 and a downhill surface nonmetal sliding plate 10 embedded on a lower seat plate 11 form a downhill surface friction pair; a spherical non-metal sliding plate 12 embedded in the concave spherical part of the lower seat plate 11 and a spherical metal sliding plate 13 welded on the middle seat plate 7 form a spherical friction pair; the plane metal sliding plate 5 welded at the concave surface of the upper seat plate 4 and the spherical non-metal sliding plate 12 embedded on the middle seat plate 7 form a plane friction pair. The vertical bearing, the horizontal bearing, the sliding, the rotating and the shock absorption and isolation functions of the support are realized by the upper slope panel, the lower slope panel, the middle seat plate, the upper slope surface and the lower slope surface friction pair, the plane friction pair and the spherical friction pair of the support together.
The limiting plate of the uphill panel 1 is matched with the upper seat plate 4, and the limiting plate of the downhill panel 8 is matched with the lower seat plate 11 to realize the limiting function of the support in the limiting direction.
Under the normal use condition, the friction pair on the upper slope surface and the friction pair on the lower slope surface have no relative displacement.
Under the action of earthquake, the horizontal force exceeds the limit value, the upward slope surface friction pair and the downward slope surface friction pair respectively slide in the transverse bridge direction and the longitudinal bridge direction in a reciprocating mode in an upward slope mode and a downward slope mode, earthquake kinetic energy is converted into potential energy, the earthquake action is weakened, friction resistance is obtained in the reciprocating sliding process to dissipate earthquake force, the self-vibration period of the structure is prolonged, and the earthquake reduction and isolation effect is achieved.
After an earthquake, the support can completely automatically reset along the downhill directions of the longitudinal bridge direction and the transverse bridge direction under the action of gravity, and has a normal use function without repair.
Example 2
The provided self-resetting seismic mitigation and isolation support after bidirectional earthquake belongs to a longitudinal movable support, and mainly comprises an uphill panel 1, an uphill metal sliding plate 2, an uphill nonmetal sliding plate 3, an upper seat plate 4, a plane metal sliding plate 5, a plane nonmetal sliding plate 6, a middle seat plate 7, a downhill panel 8, a downhill metal sliding plate 9, a downhill nonmetal sliding plate 10, a lower seat plate 11, a spherical nonmetal sliding plate 12, a spherical metal sliding plate 13 and the like as shown in figures 4 and 5. The support uphill panel 1 is connected with the beam body, and the support downhill panel 8 is connected with the abutment. An upper slope surface metal sliding plate 2 welded at the slope surface of the upper slope surface plate 1 and an upper slope surface nonmetal sliding plate 3 embedded on the upper seat plate 4 form an upper slope surface friction pair; a downhill surface metal sliding plate 9 welded at the slope of the downhill surface plate 8 and a downhill surface nonmetal sliding plate 10 embedded on a lower seat plate 11 form a downhill surface friction pair; a spherical non-metal sliding plate 12 embedded in the concave spherical part of the lower seat plate 11 and a spherical metal sliding plate 13 welded on the middle seat plate 7 form a spherical friction pair; the plane metal sliding plate 5 welded at the concave surface of the upper seat plate 4 and the spherical non-metal sliding plate 12 embedded on the middle seat plate 7 form a plane friction pair. The vertical bearing, the horizontal bearing, the sliding, the rotating and the shock absorption and isolation functions of the support are realized by the upper slope panel, the lower slope panel, the middle seat plate, the upper slope surface and the lower slope surface friction pair, the plane friction pair and the spherical friction pair of the support together.
A limiting plate of the upward slope panel 1 is matched with the upper seat plate 4, and a gap is reserved to realize the axial displacement sliding of the longitudinal bridge; the limiting plate of the downhill panel 8 is matched with the lower seat plate 11 to realize the limiting function of the support in the limiting direction.
Under the normal use condition, the friction pair on the upper slope surface has relative displacement in the cross slope direction, the requirement of longitudinal bridge displacement of the bridge is met, and the friction pair on the lower slope surface has no relative displacement.
Under the action of earthquake, the horizontal force exceeds the limit value, and the friction pair of the upper slope surface generates reciprocating sliding of the upper slope and the lower slope in the transverse bridge direction; when the upward slope panel slides to the normal displacement limit value in the longitudinal bridge direction, the downward slope friction pair performs reciprocating sliding on the upward slope and the downward slope in the longitudinal bridge direction, seismic energy is converted into potential energy, the seismic action is weakened, frictional resistance is obtained in the reciprocating sliding process to dissipate seismic force, the self-vibration period of the structure is prolonged, and the seismic reduction and isolation effect is achieved.
After an earthquake, the support can completely automatically reset along the downhill directions of the longitudinal bridge direction and the transverse bridge direction under the action of gravity, and has a normal use function without repair.
Example 3
The provided self-resetting seismic mitigation and isolation support after the bidirectional earthquake belongs to a multidirectional movable support, and mainly comprises an uphill panel 1, an uphill metal sliding plate 2, an uphill nonmetal sliding plate 3, an upper seat plate 4, a plane metal sliding plate 5, a plane nonmetal sliding plate 6, a middle seat plate 7, a downhill panel 8, a downhill metal sliding plate 9, a downhill nonmetal sliding plate 10, a lower seat plate 11, a spherical nonmetal sliding plate 12, a spherical metal sliding plate 13 and the like as shown in figures 4 and 5. The support uphill panel 1 is connected with the beam body, and the support downhill panel 8 is connected with the abutment. An upper slope surface metal sliding plate 2 welded at the slope surface of the upper slope surface plate 1 and an upper slope surface nonmetal sliding plate 3 embedded on the upper seat plate 4 form an upper slope surface friction pair; a downhill surface metal sliding plate 9 welded at the slope of the downhill surface plate 8 and a downhill surface nonmetal sliding plate 10 embedded on a lower seat plate 11 form a downhill surface friction pair; a spherical non-metal sliding plate 12 embedded in the concave spherical part of the lower seat plate 11 and a spherical metal sliding plate 13 welded on the middle seat plate 7 form a spherical friction pair; the plane metal sliding plate 5 welded at the concave surface of the upper seat plate 4 and the spherical non-metal sliding plate 12 embedded on the middle seat plate 7 form a plane friction pair. The vertical bearing, sliding, rotating, shock absorption and isolation functions of the support are realized by the upper slope panel, the lower slope panel, the middle seat plate, the upper slope surface and the lower slope surface friction pair, the plane friction pair and the spherical friction pair of the support together.
A limiting plate of the upward slope panel 1 is matched with the upper seat plate 4, and a gap is reserved to realize the axial displacement sliding of the longitudinal bridge; the limiting plate of the downhill panel 8 is matched with the lower seat plate 11, and a gap is reserved to realize the axial displacement and sliding of the transverse bridge.
Under the normal use condition, the friction pair on the upper slope surface has relative displacement in the cross slope direction, so that the requirement of the longitudinal bridge displacement of the bridge is met; the friction pair on the lower slope surface has relative displacement in the cross slope direction, and the requirement of the bridge on the transverse bridge displacement is met.
Under the action of earthquake, the horizontal force exceeds a limit value, and when an uphill panel slides to a normal displacement limit value in the longitudinal bridge direction, the downhill surface friction pair slides up and down in the longitudinal bridge direction; after the downhill panel slides to the normal displacement limit value in the transverse bridge direction, the friction pair of the uphill surface and the downhill surface performs reciprocating sliding in the transverse bridge direction, seismic energy is converted into potential energy, the seismic action is weakened, frictional resistance is obtained in the reciprocating sliding process to dissipate seismic force, the self-vibration period of the structure is prolonged, and the seismic reduction and isolation effect is achieved.
After an earthquake, the support can completely automatically reset along the downhill directions of the longitudinal bridge direction and the transverse bridge direction under the action of gravity, and has a normal use function without repair.
Claims (3)
1. The utility model provides a two-way post-earthquake is from restoring to throne and subtracts isolation bearing which characterized in that: comprises an uphill panel (1), an upper seat plate (4), a middle seat plate (7), a lower seat plate (11) and a downhill panel (8);
the upper surface of the uphill panel (1) is a plane contacted with the beam bottom, and the lower surface is two symmetrically arranged slopes;
the upper seat plate (4) is arranged below the uphill panel (1), the upper surface of the upper seat plate (4) is provided with two slopes matched with the lower surface of the uphill panel (1), the lower surface of the upper seat plate (4) is a plane, and the lower part of the upper seat plate (4) is provided with a cylindrical cavity;
the middle seat plate (7) is arranged below the upper seat plate (4), the upper surface of the middle seat plate (7) is a plane matched with the lower surface of the upper seat plate (4), and the lower surface of the middle seat plate (7) is a convex spherical surface;
the lower seat plate (11) is arranged below the middle seat plate (7), the upper surface of the lower seat plate (11) is a concave spherical surface matched with the lower surface of the middle seat plate (7), the upper surface of the lower seat plate (11) is two symmetrically arranged slopes, the upper part of the lower seat plate (11) is a cylindrical boss, the upper part of the lower seat plate (11) is arranged in a cylindrical cavity of the upper seat plate (4), and a rotating gap is formed between the lower seat plate (11) and the lower part of the upper seat plate (4);
the downhill panel (8) is arranged below the lower seat plate (11), the upper surface of the downhill panel (8) is two slopes matched with the lower surface of the lower seat plate (11), and the lower surface of the downhill panel (8) is a plane contacted with the cushion stone;
the placing directions of the two slopes of the uphill panel (1) and the two slopes of the downhill panel (8) are vertical in the horizontal plane.
2. The bi-directional post-earthquake self-resetting seismic mitigation and isolation bearing of claim 1, wherein: two sides of the two slopes of the uphill panel (1) in the cross slope direction are respectively provided with a limiting plate, and the limiting plates of the uphill panel (1) are in contact with the side surface of the upper part of the upper seat plate (4) or are provided with sliding gaps.
3. The bi-directional post-earthquake self-resetting seismic mitigation and isolation bearing of claim 1 or 2, wherein: two sides of the two slopes of the downhill panel (8) in the cross slope direction are respectively provided with a limiting plate, and the limiting plates of the downhill panel (8) are in contact with the side surface of the lower part of the lower seat plate (11) or are provided with sliding gaps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920722692.9U CN210712532U (en) | 2019-05-20 | 2019-05-20 | Two-way post-earthquake self-resetting seismic mitigation and isolation support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920722692.9U CN210712532U (en) | 2019-05-20 | 2019-05-20 | Two-way post-earthquake self-resetting seismic mitigation and isolation support |
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| Publication Number | Publication Date |
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| CN210712532U true CN210712532U (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920722692.9U Active CN210712532U (en) | 2019-05-20 | 2019-05-20 | Two-way post-earthquake self-resetting seismic mitigation and isolation support |
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| CN (1) | CN210712532U (en) |
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Address after: No.88, Binhe North Road, hi tech Zone, Luoyang City, Henan Province Patentee after: CSSC Shuangrui (Luoyang) special equipment Co.,Ltd. Address before: No.88, Binhe North Road, hi tech Zone, Luoyang City, Henan Province Patentee before: LUOYANG SUNRUI SPECIAL EQUIPMENT Co.,Ltd. |
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