CN111188415A - Anti-pulling bidirectional friction pendulum vibration reduction and isolation support - Google Patents
Anti-pulling bidirectional friction pendulum vibration reduction and isolation support Download PDFInfo
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- CN111188415A CN111188415A CN202010110175.3A CN202010110175A CN111188415A CN 111188415 A CN111188415 A CN 111188415A CN 202010110175 A CN202010110175 A CN 202010110175A CN 111188415 A CN111188415 A CN 111188415A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/36—Bearings or like supports allowing movement
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- Electromagnetism (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
An anti-pulling bidirectional friction pendulum vibration reduction and isolation support comprises an upper seat plate, an upper wear-resistant sheet, a spherical crown body, a lower wear-resistant sheet, a lower seat plate and a friction anti-pulling piece; the upper wear-resistant sheet is adhered to the lower spherical surface of the upper seat plate, and the lower wear-resistant sheet is adhered to the upper spherical surface of the lower seat plate; the periphery of the lower seat plate is provided with through inverted T-shaped sliding grooves which are vertical to each other, and the edge of the upper seat plate is provided with a T-shaped sliding groove which is vertical to the through inverted T-shaped sliding grooves; the friction pulling-resistant part consists of an upper pi-shaped part, a friction connecting pair and a lower inverted T-shaped part; the upper pi-shaped part is matched with the T-shaped sliding groove, and the lower inverted T-shaped part is matched with the inverted T-shaped sliding groove. The invention has simple structure, convenient assembly and easy maintenance and replacement, not only has the function of pulling resistance, but also can realize horizontal bidirectional shock absorption and isolation and avoid the damage of the upper structure when an earthquake occurs.
Description
Technical Field
The invention relates to the field of building earthquake-resistant supports, in particular to an anti-pulling bidirectional friction pendulum seismic mitigation and isolation support.
Background
Frequent occurrence of earthquakes can cause damage to building structures, resulting in casualties and economic losses. In order to improve the capability of a building structure for resisting external loads such as earthquake and the like, the shock absorption and isolation support is arranged in the structure, so that the simple, economic and effective measures are provided.
The seismic isolation and reduction support commonly used at present comprises: rubber support, mild steel damping support, friction pendulum support, etc. The rubber support is easy to age and has poor reliability; the soft steel damping support has low bearing capacity and high manufacturing cost; the friction pendulum support has the advantages of strong self-limiting function, self-resetting capability, excellent shock insulation and energy consumption mechanism and the like, and is widely applied to civil engineering.
When an earthquake comes, the friction pendulum support can meet the requirements of rotation and horizontal displacement of an upper structure, but the friction pendulum support does not have the capability of vertical pulling resistance, and particularly when a large vertical earthquake acting force is borne, all parts of the support can be separated and lose efficacy, so that a serious result is caused.
The anti-pulling device can solve the problem that the friction pendulum support breaks away from failure, and the current anti-pulling mechanism mainly has two types: 1. the mode tensile is pulled out such as setting up anti-pulling block through last bedplate, for example application number 201420108057.9 utility model "friction pendulum formula shock insulation support with anti-pulling device", including last bedplate, anchor bolt, board subassembly, hypoplastron subassembly, friction pendulum formula sphere pendulum, anti-pulling device. One end of the anti-pulling device is fixed, and the support only has the function of seismic isolation and reduction in a single direction, so that the application of the anti-pulling device in a building structure is limited; 2. the invention discloses a three-dimensional shock-insulation support which is anti-pulling through the way that steel springs are arranged on an upper seat plate and a lower seat plate, for example, the invention patent with the application number of 201510228638.5, and the three-dimensional shock-insulation support comprises an I-shaped anti-pulling splice plate, a frame type friction pendulum shock-insulation support and a shock-absorbing energy-consuming device consisting of belleville springs. The support allows displacement in any direction in a horizontal plane to occur between an upper member and a lower member which are connected, but the support is complex in composition structure and not easy to install, the spring can provide limited vertical tensile pulling-resistant rigidity, and the cost is higher.
At present, the problem to be solved urgently is that on one hand, the pulling resistance of the anti-pulling type friction pendulum support is ensured, and on the other hand, the function of horizontal bidirectional movement of the support is realized. In order to solve the above problems, it is necessary to provide an anti-pulling bidirectional friction pendulum seismic isolation and reduction support.
Disclosure of Invention
Aiming at the defects of the prior art, the invention discloses an anti-pulling bidirectional friction pendulum vibration reduction and isolation support which is simple in structure and convenient to assemble, and has the functions of pulling resistance and horizontal bidirectional movement.
The technical scheme adopted by the invention is as follows: the utility model provides an anti-pulling bidirectional friction pendulum subtracts isolation bearing, includes the bedplate, goes up wear pad, the spherical crown body, lower wear pad, bedplate and friction resistance to pulling down its characterized in that: the upper wear-resistant sheet is adhered to the lower spherical surface of the upper seat plate, and the lower wear-resistant sheet is adhered to the upper spherical surface of the lower seat plate; the periphery of the lower seat plate is provided with through inverted T-shaped sliding grooves which are vertical to each other, and the edge of the upper seat plate is provided with a T-shaped sliding groove which is vertical to the through inverted T-shaped sliding grooves; the friction pulling-resistant part consists of an upper pi-shaped part, a friction connecting pair and a lower inverted T-shaped part; the upper pi-shaped part is matched with the T-shaped sliding groove, and the lower inverted T-shaped part is matched with the inverted T-shaped sliding groove. The upper pi-shaped part consists of an upper end plate and two parallel clamping plates, and circular holes are formed in the two parallel clamping plates; the lower inverted T-shaped part consists of a lower end plate, a connecting plate and friction elements attached to the surfaces of the two sides of the connecting plate, and a kidney-shaped hole matched with the circular hole is formed in the connecting plate; the upper pi-shaped part and the lower inverted T-shaped part are connected into a whole through a bolt connecting pair.
Furthermore, a lubricant is smeared in the inverted T-shaped sliding groove and the T-shaped sliding groove.
The anti-pulling bidirectional friction pendulum seismic isolation and reduction support provided by the invention realizes the seismic isolation and reduction effect through the friction swing of the spherical cap body and the friction action of the friction anti-pulling piece.
When an earthquake occurs, the sliding grooves at the upper end and the lower end of the friction pulling-resistant piece are vertical to each other, so that the support has the function of horizontal bidirectional movement. When the upper seat plate and the lower seat plate move relatively in the x direction, the friction anti-pulling piece in the T-shaped sliding groove in the x direction slides relatively to the upper seat plate, and the friction anti-pulling piece in the T-shaped sliding groove in the y direction moves together with the upper seat plate; when the upper seat plate and the lower seat plate move relatively in the y direction, the friction pulling-resistant piece in the y-direction T-shaped sliding groove and the upper seat plate slide relatively, and the friction pulling-resistant piece in the x-direction T-shaped sliding groove and the upper seat plate move together. Since the presence of the friction pull-out is not constrained to the horizontal movement of the upper seat plate, the movement of the upper seat plate in the x-direction and the y-direction can occur simultaneously. The swinging of the spherical crown body drives the upper Pi-shaped piece and the lower inverted T-shaped piece to generate relative sliding when the upper seat plate moves, so that friction energy consumption is realized. The waist-shaped hole in the lower inverted T-shaped piece has a limiting effect, and excessive slippage can be prevented. The invention has simple structure and convenient assembly, simultaneously has the functions of vertical pulling resistance and horizontal bidirectional seismic isolation and reduction, and can be popularized and applied in building structures.
Drawings
FIG. 1 is a schematic structural diagram of an anti-pulling bidirectional friction pendulum seismic mitigation and isolation bearing in an embodiment of the invention;
FIG. 2 is a top view of a lower seat plate of an embodiment of the present invention;
FIG. 3 is a front view of a lower deck of an embodiment of the present invention;
FIG. 4 is a top view of an upper deck of an embodiment of the present invention;
FIG. 5 is a front view of an upper deck of an embodiment of the present invention;
FIG. 6 is a front view of a friction pull-resistant member of an embodiment of the present invention;
FIG. 7 is a left side view of the upper pi shaped element of FIG. 6;
FIG. 8 is a left side view of the lower inverted T-shaped piece of FIG. 6;
FIG. 9 is a top view of the structure after oscillation of the embodiment of the present invention;
FIG. 10 is a front view of the structure after oscillation of the embodiment of the present invention;
FIG. 11 is a cross-sectional view A-A of FIG. 9;
FIG. 12 is a sectional view taken along line B-B of FIG. 9;
fig. 13 is a cross-sectional view of fig. 10 taken along line C-C.
Detailed Description
The invention is further described with reference to the following figures and examples:
referring to fig. 1, the present embodiment includes an upper seat plate 1, an upper wear pad 2, a spherical crown body 3, a lower wear pad 4, a lower seat plate 5, and a friction pulling-resistant member 6, and is characterized in that: the upper wear-resistant sheet 2 is adhered to the lower spherical surface of the upper seat plate 1, and the lower wear-resistant sheet 4 is adhered to the upper spherical surface of the lower seat plate 5.
Referring to fig. 2-5, the lower seat plate 5 is provided with through inverted T-shaped sliding grooves 7 perpendicular to each other at the periphery, and the upper seat plate 1 is provided with T-shaped sliding grooves 8 perpendicular to the through inverted T-shaped sliding grooves 7 at the edge.
Referring to fig. 6, the friction pulling-resistant part 6 is composed of an upper pi-shaped part 9, a friction connecting pair 10 and a lower inverted T-shaped part 11; the upper pi-shaped part 9 is matched with the T-shaped sliding groove 8, and the lower inverted T-shaped part 11 is matched with the inverted T-shaped sliding groove 7; and lubricant is smeared in the inverted T-shaped sliding groove 7 and the T-shaped sliding groove 8.
With reference to fig. 7, the upper pi-shaped element 9 is composed of an upper end plate 12 and two parallel clamping plates 13, the two parallel clamping plates 13 being provided with circular holes 14.
Referring to fig. 8, the lower inverted T-shaped member 11 is composed of a lower end plate 15, a connecting plate 16, and friction elements 17 attached to two side surfaces of the connecting plate 16, wherein a waist-shaped hole 18 matched with the circular hole 14 is formed in the connecting plate 16; the upper pi-shaped part 9 and the lower inverted T-shaped part 11 are connected into a whole through a bolt connecting pair 10.
In the embodiment, the shock absorption and isolation effect is realized through the friction swing of the spherical cap body 3 and the friction action of the friction pulling-resistant piece 6. Referring to fig. 9-12, when an earthquake occurs, the sliding grooves at the upper and lower ends of the friction pulling-resistant piece 6 are vertical to each other, so that the support has a function of horizontal bidirectional movement. When the upper seat plate 1 and the lower seat plate 5 move relatively in the x direction, the friction anti-pulling piece 6 in the x-direction T-shaped sliding groove 8 slides relative to the upper seat plate 1, and the friction anti-pulling piece 6 in the y-direction T-shaped sliding groove 8 moves together with the upper seat plate 1; when the upper seat plate 1 and the lower seat plate 5 move relatively in the y direction, the friction anti-pulling part 6 in the y direction T-shaped sliding groove 8 slides relative to the upper seat plate 1, and the friction anti-pulling part 6 in the x direction T-shaped sliding groove 8 moves together with the upper seat plate 1. Since the presence of the friction pull-out 6 does not constrain the horizontal movement of the upper seat plate 1, the movement of the upper seat plate 1 in the x-direction and the y-direction can occur simultaneously. The swinging of the spherical crown body 3 drives the upper Pi-shaped element 9 and the lower inverted T-shaped element 11 to generate relative sliding when the upper seat plate 1 moves, so as to realize friction energy consumption. The waist-shaped hole 18 in the lower inverted T-shaped piece 11 has a limiting function, and can prevent overlarge slippage. The invention has simple structure and convenient assembly, simultaneously has the functions of vertical pulling resistance and horizontal bidirectional seismic isolation and reduction, and can be popularized and applied in building structures.
Claims (3)
1. The utility model provides an anti-pulling bidirectional friction pendulum subtracts isolation bearing, includes the bedplate, goes up wear pad, the spherical crown body, lower wear pad, bedplate and friction resistance to pulling down its characterized in that: the upper wear-resistant sheet is adhered to the lower spherical surface of the upper seat plate, and the lower wear-resistant sheet is adhered to the upper spherical surface of the lower seat plate; the periphery of the lower seat plate is provided with through inverted T-shaped sliding grooves which are vertical to each other, and the edge of the upper seat plate is provided with a T-shaped sliding groove which is vertical to the through inverted T-shaped sliding grooves; the friction pulling-resistant part consists of an upper pi-shaped part, a friction connecting pair and a lower inverted T-shaped part; the upper pi-shaped part is matched with the T-shaped sliding groove, and the lower inverted T-shaped part is matched with the inverted T-shaped sliding groove.
2. The anti-pulling bidirectional friction pendulum seismic mitigation and isolation bearing according to claim 1, characterized in that: the upper pi-shaped part consists of an upper end plate and two parallel clamping plates, and circular holes are formed in the two parallel clamping plates; the lower inverted T-shaped part consists of a lower end plate, a connecting plate and friction elements attached to the surfaces of the two sides of the connecting plate, and a kidney-shaped hole matched with the circular hole is formed in the connecting plate; the upper pi-shaped part and the lower inverted T-shaped part are connected into a whole through a bolt connecting pair.
3. The anti-pulling bidirectional friction pendulum seismic mitigation and isolation bearing according to claim 1, characterized in that: and a lubricant is smeared in the inverted T-shaped sliding groove and the T-shaped sliding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010110175.3A CN111188415A (en) | 2020-02-23 | 2020-02-23 | Anti-pulling bidirectional friction pendulum vibration reduction and isolation support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010110175.3A CN111188415A (en) | 2020-02-23 | 2020-02-23 | Anti-pulling bidirectional friction pendulum vibration reduction and isolation support |
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| Publication Number | Publication Date |
|---|---|
| CN111188415A true CN111188415A (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010110175.3A Pending CN111188415A (en) | 2020-02-23 | 2020-02-23 | Anti-pulling bidirectional friction pendulum vibration reduction and isolation support |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112144391A (en) * | 2020-10-30 | 2020-12-29 | 温州安荷桥科技有限公司 | Special shock insulation support of bridge |
| CN112160237A (en) * | 2020-10-16 | 2021-01-01 | 同济大学 | Compound friction pendulum isolation bearing based on high damping rubber |
| CN113153948A (en) * | 2021-04-15 | 2021-07-23 | 无锡安特斯密减隔震科技有限公司 | Tensile spring friction pendulum |
| CN113323480A (en) * | 2021-05-31 | 2021-08-31 | 南通蓝科减震科技有限公司 | Friction pendulum shock insulation support |
| CN114960727A (en) * | 2022-02-21 | 2022-08-30 | 中国人民解放军63921部队 | Friction pendulum vibration reduction system suitable for large-tonnage high-level water tank |
-
2020
- 2020-02-23 CN CN202010110175.3A patent/CN111188415A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112160237A (en) * | 2020-10-16 | 2021-01-01 | 同济大学 | Compound friction pendulum isolation bearing based on high damping rubber |
| CN112144391A (en) * | 2020-10-30 | 2020-12-29 | 温州安荷桥科技有限公司 | Special shock insulation support of bridge |
| CN113153948A (en) * | 2021-04-15 | 2021-07-23 | 无锡安特斯密减隔震科技有限公司 | Tensile spring friction pendulum |
| CN113323480A (en) * | 2021-05-31 | 2021-08-31 | 南通蓝科减震科技有限公司 | Friction pendulum shock insulation support |
| CN114960727A (en) * | 2022-02-21 | 2022-08-30 | 中国人民解放军63921部队 | Friction pendulum vibration reduction system suitable for large-tonnage high-level water tank |
| CN114960727B (en) * | 2022-02-21 | 2023-07-25 | 中国人民解放军63921部队 | Friction pendulum vibration damping system suitable for large-tonnage high-level water tank |
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