CN203866970U - Friction pendulum support with annular steel plate - Google Patents
Friction pendulum support with annular steel plate Download PDFInfo
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- CN203866970U CN203866970U CN201420298279.1U CN201420298279U CN203866970U CN 203866970 U CN203866970 U CN 203866970U CN 201420298279 U CN201420298279 U CN 201420298279U CN 203866970 U CN203866970 U CN 203866970U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 98
- 239000010959 steel Substances 0.000 title claims abstract description 98
- 238000004873 anchoring Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 5
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 8
- 238000013016 damping Methods 0.000 abstract description 7
- 230000008859 change Effects 0.000 abstract description 5
- 239000000725 suspension Substances 0.000 abstract 4
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000035939 shock Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000003416 augmentation Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000013632 homeostatic process Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Vibration Prevention Devices (AREA)
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Abstract
The utility model discloses a friction pendulum support with an annular steel plate, which comprises an upper anchoring rod, an upper support plate, a high-strength bolt, a spherical crown, an upper wear-resistant plate, an annular steel plate, a lower wear-resistant plate, a lower support plate, a lower anchoring rod and a sliding surface; for the cylinder contact between upper bracket board and the last antifriction plate, for the cylinder contact between bottom suspension bedplate and the lower antifriction plate, the contact is the sphere contact between spherical crown and upper bracket board, the bottom suspension bedplate, for articulated between spherical crown upper portion and the last antifriction plate, installs annular steel sheet between upper bracket board and the bottom suspension bedplate, and the annular steel sheet upper end is through the high strength bolt anchor in upper bracket board bottom, and the annular steel sheet lower extreme is through the high strength bolt anchor at bottom suspension bedplate top. The utility model discloses friction pendulum support can provide additional damping ratio, change superstructure self-oscillation cycle for the structure, reduces structure earthquake reaction, and restriction upper portion and substructure relative displacement prevent finally that the separation of upper and lower part is unlikely to make superstructure emergence topple.
Description
Technical field
The utility model relates to a kind of antidetonation and subtracts seismic isolation technology, is specifically related to a kind of passive power consumption and subtracts shock insulation and the spacing friction pendulum support that doughnut-shaped steel plate is housed.
Background technology
The homeostasis ability of tradition friction pendulum support under little shake is poor; Under middle macroseism, it is larger that normal activity friction pendulum support swings, and the sudden change that there will be power in the friction pendulum loading process of shear connector is housed, and superstructure is easily thrown out of.In prior art, lack the outstanding friction pendulum support of a kind of damping energy dissipation capacity.
Utility model content
The purpose of this utility model is in order to overcome the deficiencies in the prior art, in conjunction with doughnut-shaped steel plate power consumption, spacing and friction pendulum support damping power consumption advantage, a kind of friction pendulum support that doughnut-shaped steel plate is housed is provided, this friction pendulum support can provide additional damping ratio for structure, change superstructure natural vibration period, reduce structural seismic response, restriction upper and lower structure relative displacement, finally prevent top and the bottom from and be unlikely to make superstructure to be toppled.
The technical solution adopted in the utility model is: a kind of friction pendulum support that doughnut-shaped steel plate is housed, comprises anchoring rods, upper bracket plate, high-strength bolt, spherical crown, upper wearing plate, doughnut-shaped steel plate, lower wearing plate, lower support plate, lower anchoring rods and slide plane;
Between described upper bracket plate and upper wearing plate for cylinder contacts, between lower support plate and lower wearing plate for cylinder contacts, described spherical crown and upper bracket plate, between lower support plate, contact is sphere-contact, between spherical crown top and upper wearing plate, be connected to can relatively rotate hinged, spherical crown top and spherical crown bottom simultaneously or one of them be provided with slide plane, spherical crown is free to slide on slide plane, described upper bracket plate and lower support plate are fixed by upper anchoring rods and lower anchoring rods, between upper bracket plate and lower support plate, doughnut-shaped steel plate is installed, doughnut-shaped steel plate upper end is anchored at upper bracket plate bottom by high-strength bolt, doughnut-shaped steel plate lower end is anchored at lower support plate top by high-strength bolt.
As preferably, described doughnut-shaped steel plate can be a slice or multi-disc, can arrange in friction pendulum surrounding or symmetrical both sides.
As preferably, described doughnut-shaped steel plate material is crooked mild steel, selects Q235 steel, and thickness is selected 10～20mm, because it is little to cross when thin initial stiffness, is difficult to play spacing, reset response, is difficult for being shaped when blocked up.
As preferably, the width of described doughnut-shaped steel plate is controlled in 9 with the ratio of thickness, crosses conference and causes recessed bent destruction.The radius of curvature R of the semi-circular portions of doughnut-shaped steel plate bending is half of distance between upper bracket plate and lower support plate, and the displacement that the extension L of doughnut-shaped steel plate should subtract shock insulation according to friction pendulum is determined, generally gets 100mm and can meet the demands with interior.
As preferably, the connecting portion place of described doughnut-shaped steel plate and high-strength bolt, steel plate, for adding steel plate, prevents that tapping from being drawn bad.
As preferably, described high-strength bolt should use four at each connecting portion, and the selection of diameter should be determined according to the tensile strength of doughnut-shaped steel plate, the ultimate tension that the ability of high-strength bolt opposing shearing must not be pulled off lower than doughnut-shaped steel plate.
Described upper bracket plate and lower support plate bottom should be made into square, are convenient to the installation of doughnut-shaped steel plate, and the plate length d of choosing should facilitate on-the-spot installation, and the length of described high-strength bolt is not more than the thickness sum of the above-mentioned plate of choosing and doughnut-shaped steel plate.
Described slide plane both can be positioned at spherical crown bottom, for base isolation; Also can be positioned at spherical crown top, for Interlayer seismic isolation; Upper and lower two sliding surfaces also can be set simultaneously, make two sliding surface friction pendulum supports, doughnut-shaped steel plate is not selective to the sliding type of friction pendulum support.
Described upper wearing plate and lower wearing plate should be contained in the upper and lower of spherical crown, no matter be the bearing of what sliding type, there is relative motion spherical crown top and the bottom.Therefore load onto the durability that wearing plate is conducive to bearing.
Described doughnut-shaped steel plate should after leveling, finally be arranged on bearing at friction pendulum agent set on bridge, due to technique or transportation reason, doughnut-shaped steel plate is first loaded on to the leveling while being unfavorable on friction pendulum support that bearing is installed.
Described doughnut-shaped steel plate is made of mild steel, be easy to draw materials and process, friction pendulum support only needs common model, and the upper end of doughnut-shaped steel plate is placed in upper bracket plate bottom, uses high-strength bolt anchoring, the lower end of doughnut-shaped steel plate is placed in lower support plate top, use high-strength bolt anchoring, doughnut-shaped steel plate is arranged in respectively the four direction of friction pendulum support, does not lose aesthetic property, improved friction pendulum can be realized batch production production, doughnut-shaped steel plate can assemble at any time fast, assembling fast and flexible.In addition, the doughnut-shaped steel plate of four sides assembling, can eliminate the uncertain worry of seismic wave direction, alleviates to the full extent the destruction of earthquake.
The utility model has the following advantages compared to existing technology:
The utility model improved friction pendulum bearing, compares with movable friction pendulum, more gives full play to the advantage of various structures and various materials, overcomes the deficiency, and initial stiffness can be provided, and the larger shock insulation displacement that subtracts can also be provided.Its maximum feature is: under geological process, doughnut-shaped steel plate can pass through the plastic strain consumed energy of self, after being straightened, superstructure played to position-limiting action, doughnut-shaped steel plate is also easy to change after destruction, convenient economical; Both can be used as medium and small span bridge girder anti-seismic bearing, also can be used as building seismic isolation device.
The utility model improved friction pendulum bearing, can play and subtract shock insulation and position-limiting action the earthquake of any direction, both can prevent the beam that laterally falls, and also can prevent the beam that longitudinally falls, and the doughnut-shaped steel plate of increase is accomplished the effect that damping, girder falling unite two into one.
Accompanying drawing explanation
Fig. 1 is the utility model friction pendulum support structural representation;
Fig. 2 is the schematic diagram of the utility model doughnut-shaped steel plate;
Fig. 3 is the utility model doughnut-shaped steel plate connecting portion detail drawing;
Fig. 4 is the utility model friction pendulum support top top view;
Fig. 5 is 1-1 face sectional view in Fig. 1.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
As Figure 1-5: a kind of friction pendulum support that doughnut-shaped steel plate is housed, comprises anchoring rods 1, upper bracket plate 2, high-strength bolt 3, spherical crown 4, upper wearing plate 5, doughnut-shaped steel plate 6, lower wearing plate 7, lower support plate 8, lower anchoring rods 9 and slide plane 10;
Between described upper bracket plate 2 and upper wearing plate 5 for cylinder contacts, between lower support plate 8 and lower wearing plate 7 for cylinder contacts, described spherical crown 4 and upper bracket plate 2, between lower support plate 8, contact is sphere-contact, between spherical crown 4 tops and upper wearing plate 5, be connected to can relatively rotate hinged, spherical crown 4 tops and spherical crown 4 bottoms simultaneously or one of them be provided with slide plane 10, spherical crown 4 is free to slide on slide plane 10, described upper bracket plate 2 and lower support plate 8 are fixing by upper anchoring rods 1 and lower anchoring rods 9, between upper bracket plate 2 and lower support plate 8, doughnut-shaped steel plate 6 is installed, doughnut-shaped steel plate 6 upper ends are anchored at upper bracket plate 2 bottoms by high-strength bolt 3, doughnut-shaped steel plate 6 lower ends are anchored at lower support plate 8 tops by high-strength bolt 3.
Described doughnut-shaped steel plate 6 is a slice or multi-disc, in friction pendulum surrounding or symmetrical both sides, arranges.Described doughnut-shaped steel plate 6 materials are crooked mild steel, select Q235 steel, and thickness is selected 10～20mm.The width of doughnut-shaped steel plate 6 is controlled in 9 with the ratio of thickness.The radius of curvature R of the semi-circular portions of doughnut-shaped steel plate 6 bendings is half of distance between upper bracket plate 2 and lower support plate 8, and the extension L of doughnut-shaped steel plate 6 gets in 100mm.The connecting portion place of doughnut-shaped steel plate 6 and high-strength bolt 3, steel plate is for adding steel plate 11.Described high-strength bolt 3 should use four at each connecting portion.Described upper bracket plate 2 and lower support plate 8 bottoms should be made into square, are convenient to the installation of doughnut-shaped steel plate 6, and the plate length d of choosing should facilitate on-the-spot installation, and the length of described high-strength bolt 3 is not more than the thickness sum of the above-mentioned plate of choosing and doughnut-shaped steel plate 6.
The utility model is under the effect of the transverse horizontal power being caused by earthquake etc., friction pendulum support starts to swing along slide plane, hypothetically seismic wave along along bridge to propagation, along bridge to the doughnut-shaped steel plate tension (pressure) of direction, curved, cut synergy, take and roll flexural deformation as main.After surrender, there is yield line in stressed maximum, and when load is increased to after a threshold value, the yield line that strengthens plate along with distortion shifts, until be straightened.Displacement increases with doughnut-shaped steel plate extension L.It has plentiful hysteresis loop and extraordinary deformation performance, and, energy dissipator spacing as a kind of shock insulation can meet the requirement of design slippage.And the doughnut-shaped steel plate of direction across bridge all tension, turn round, compare along bridge to, rigidity, intensity, energy-dissipating property reduces relatively, and what do due to friction pendulum is spherical pendulum motion, so can become with doughnut-shaped steel plate longitudinal a little angle by the effect of upper bracket plate to the power of doughnut-shaped steel plate, can make full use of like this bending resistance of steel plate, anti-(pressures) and the performance, the utilization rate of raising steel plate such as draw.
The utility model is under normal operating condition, in order to resist brake force, can be at vertical bridge to a plurality of doughnut-shaped steel plates are set, the desirable 2mm of friction pendulum support yield displacement, doughnut-shaped steel plate is carried out to Finite Element Static Analysis, when surface course has just occurred surrendering, the now displacement along forced direction of doughnut-shaped steel plate is greater than 2mm, and doughnut-shaped steel plate can not surrendered prior to friction pendulum support.Doughnut-shaped steel plate has certain initial stiffness, and brake force can be offset by frictional force, doughnut-shaped steel plate elastic force.
In the utility model, the elastic displacement of doughnut-shaped steel plate is larger, under little shake, can be by the elastic force opposing seismic forces of the restoring force that produces after friction pendulum small sway and doughnut-shaped steel plate, if doughnut-shaped steel plate is mainly turned round, can be than tension, to press doughnut-shaped steel plate to enter the moulding stage Zao, should change in time.Under middle severe earthquake action, friction pendulum support in the process of whole slippage, utilize friction pendulum structure cycle stretch-out superstructure natural vibration period, thereby effectively reduce seismic power augmentation effect, reach protection superstructure object.When occur sliding, superstructure is elevated, thereby the portion of energy of earthquake input is converted to the gravitional force of bearing and superstructure, and frictional resistance in friction pendulum support slipping carries out damping consumption to the energy of earthquake input superstructure.Doughnut-shaped steel plate has good anti-fatigue performance, in sliding process repeatedly, is not easy fracture, when the doughnut-shaped steel plate of surrounding enters the moulding stage, produce moulding hinge line, hinge line is with the increase of putting forth effort, position changes, and consumes part seismic energy, has played damping action.After doughnut-shaped steel plate is straightened, also play " soft lock " effect, limit the whereabouts of superstructure, due to enter moulding after, the rigidity of doughnut-shaped steel plate is very little, and the reset of superstructure is not had to inhibition, and superstructure relies on weight component, to the motion of friction pendulum minimum point, be conducive to superstructure and recover fixed quiet state.
It should be pointed out that for those skilled in the art, not departing under the prerequisite of the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.In the present embodiment not clear and definite each ingredient all available prior art realized.
Claims (6)
1. the friction pendulum support that doughnut-shaped steel plate is housed, is characterized in that: comprise anchoring rods, upper bracket plate, high-strength bolt, spherical crown, upper wearing plate, doughnut-shaped steel plate, lower wearing plate, lower support plate, lower anchoring rods and slide plane;
Between described upper bracket plate and upper wearing plate for cylinder contacts, between lower support plate and lower wearing plate for cylinder contacts, described spherical crown and upper bracket plate, between lower support plate, contact is sphere-contact, between spherical crown top and upper wearing plate, be connected to can relatively rotate hinged, spherical crown top and spherical crown bottom simultaneously or one of them be provided with slide plane, described upper bracket plate and lower support plate are fixed by upper anchoring rods and lower anchoring rods, between upper bracket plate and lower support plate, doughnut-shaped steel plate is installed, doughnut-shaped steel plate upper end is anchored at upper bracket plate bottom by high-strength bolt, doughnut-shaped steel plate lower end is anchored at lower support plate top by high-strength bolt.
2. a kind of friction pendulum support that doughnut-shaped steel plate is housed according to claim 1, is characterized in that: described doughnut-shaped steel plate is a slice or multi-disc, in friction pendulum surrounding or symmetrical both sides, arranges.
3. a kind of friction pendulum support that doughnut-shaped steel plate is housed according to claim 1, is characterized in that: described doughnut-shaped steel plate material is crooked mild steel, selects Q235 steel, and thickness is selected 10～20mm.
4. a kind of friction pendulum support that doughnut-shaped steel plate is housed according to claim 1, it is characterized in that: the width of described doughnut-shaped steel plate is controlled in 9 with the ratio of thickness, the radius of curvature R of the semi-circular portions of doughnut-shaped steel plate bending is half of distance between upper bracket plate and lower support plate, and the extension L of doughnut-shaped steel plate gets in 100mm.
5. a kind of friction pendulum support that doughnut-shaped steel plate is housed according to claim 1, is characterized in that: the connecting portion place of described doughnut-shaped steel plate and high-strength bolt, steel plate is for adding steel plate.
6. a kind of friction pendulum support that doughnut-shaped steel plate is housed according to claim 1, is characterized in that: described high-strength bolt should use four at each connecting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420298279.1U CN203866970U (en) | 2014-06-05 | 2014-06-05 | Friction pendulum support with annular steel plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420298279.1U CN203866970U (en) | 2014-06-05 | 2014-06-05 | Friction pendulum support with annular steel plate |
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| CN203866970U true CN203866970U (en) | 2014-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420298279.1U Expired - Fee Related CN203866970U (en) | 2014-06-05 | 2014-06-05 | Friction pendulum support with annular steel plate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032834A (en) * | 2014-06-05 | 2014-09-10 | 南京工业大学 | Friction pendulum support with annular steel plate |
| CN104805908A (en) * | 2015-05-07 | 2015-07-29 | 河海大学 | Three-dimensional vibration isolation support |
| CN116927063A (en) * | 2023-09-15 | 2023-10-24 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Bridge structure with anti-falling beam system with anti-seismic toughness |
-
2014
- 2014-06-05 CN CN201420298279.1U patent/CN203866970U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032834A (en) * | 2014-06-05 | 2014-09-10 | 南京工业大学 | Friction pendulum support with annular steel plate |
| CN104805908A (en) * | 2015-05-07 | 2015-07-29 | 河海大学 | Three-dimensional vibration isolation support |
| CN116927063A (en) * | 2023-09-15 | 2023-10-24 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Bridge structure with anti-falling beam system with anti-seismic toughness |
| CN116927063B (en) * | 2023-09-15 | 2024-02-02 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Bridge structure with anti-falling beam system with anti-seismic toughness |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 |
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| CF01 | Termination of patent right due to non-payment of annual fee |