CN205444469U - Porous lead core rubber support of big bearing capacity of high damping - Google Patents
Porous lead core rubber support of big bearing capacity of high damping Download PDFInfo
- Publication number
- CN205444469U CN205444469U CN201620288965.XU CN201620288965U CN205444469U CN 205444469 U CN205444469 U CN 205444469U CN 201620288965 U CN201620288965 U CN 201620288965U CN 205444469 U CN205444469 U CN 205444469U
- Authority
- CN
- China
- Prior art keywords
- lead
- bearing capacity
- bearing
- retractable pencil
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model provides a porous lead core rubber support of big bearing capacity of high damping, relates to a passive damping device. It includes that a plurality of diameters are the same and follows last steel deck and rubber layer to setting in turn down, still includes and runs through in the cylinder lead core on all steel decks and rubber layer, lead core quantity is for a plurality of and evenly arrange along the support circumferencial direction, and the centre of a circle of all lead cores is located the concentric circles of same support, is the diameter of concentric circles 56% of support diameter 66%. The utility model discloses possess the consuming excessive quantities of energy and resources that is superior to traditional support, restore to the throne certainly, the normally functioning requirement down of heat altered shape to the average displacement in ground (abouts 500mm) limit value, bearing capacity satisfy key type of seting up defences engineering seating plane pressure and are not more than under the 12MPa condition needs that vertical bearing capacity was not less than 10000KN down to satisfy china's antidetonation design specifications 9 big shake effect of degree (0.62g). The utility model discloses but the wide application in large -scale LNG storage tank, stride single mound bridge, super high -rise building, nuclear power plant's nuclear island structure greatly and subtract fields such as shock insulation.
Description
Technical field
This utility model relates to a kind of damping device, is specifically related to a kind of porous lead for retractable pencil laminated rubber damping bearing, belongs to damping device technical field.
Background technology
Earthquake disaster has sudden and crushing, and the safety of life and property of the mankind in serious threat.Historically, China's earthquake disaster occupies first of the world, is characterized in that frequency is high, earthquake magnitude is big, distribution is wide.More than six grades earthquakes of 20th century China's generation more than 600 times.China more than 1/3rd territory, large-and-medium size cities more than half be positioned at seismic fortification intensity seven degree and above area.At present, China's earthquake is the most active, and more than 10 more than 7 grades earthquakes and more than 50 more than 6 grades earthquakes have occurred the most.
Seismic isolation technology is the most relatively effective current earthquake resistant engineering technology.Structure, by arranging Seismic Isolation of Isolation Layer, is divided into superstructure, Seismic Isolation of Isolation Layer and substructure three part by seismic isolation structure system.Seismic energy passes to Seismic Isolation of Isolation Layer via bottom, the earthquake isolating equipment of Seismic Isolation of Isolation Layer absorb and consume Main Seismic Areas energy, is delivered to superstructure via small part energy.Meanwhile, along with developing rapidly of China's economy, the modern heavy construction quantity such as large-scale petroleum chemical storage tank, nuclear power plant gets more and more, and grade is more and more higher, occurs to destroy the consequence caused the most increasingly severe.Guarantee that this type of building is particularly important in the safety of earthquake motion.
The rubber earthquake isolation support used in engineering at present mostly is natural rubber bearing or single hole lead rubber laminated bearing.And these existing single hole lead rubber laminated bearing generally exist, and tensile bearing capacity is on the low side, single support structural stability is poor, damping skewness, bearing inner rubber vulcanize the problems such as the uneven unstable product quality caused, these shortcomings constrain the scope of application of lead rubber laminated bearing significantly.Research can overcome these shortcoming cushion techniques to seem the most urgent.
Summary of the invention
This utility model solves tradition major diameter (about 1500mm or bigger) single hole lead core rubber support inner rubber and vulcanizes that the uneven tensile bearing capacity caused is low, the damping of single support poor stability, lead utilizes the problems such as insufficient, can be widely applied to Large LNG storage tank, greatly across fields such as single pier bridge, high-rise building, nuclear power plant nuclear island Seismic Isolation And Dissipation of Civil Structures.
For realizing object above, the technical solution of the utility model is:
A kind of high-damping large bearing capacity porous lead core rubber support, described bearing is cylindrical, it includes that multiple diameter is identical and the steel plate layer that is arranged alternately from top to bottom and rubber layer, also include the cylinder lead for retractable pencil through all steel plate layer and rubber layer, described lead for retractable pencil quantity is multiple and is evenly arranged along seating circumference direction, the center of circle of all lead for retractable pencils is positioned on the concentric circular of same bearing, the 56%-66% of described concentrically ringed a diameter of bearing diameter.
Preferred structure is, described lead for retractable pencil quantity is 8-10.
Preferred structure is, each lead for retractable pencil outer rim is not less than the 10% of bearing cross sectional radius with the distance of bearing outer rim, simultaneously nor less than the radius of single lead for retractable pencil.
Preferred structure is, the described bearing the superiors and orlop are all steel plate layer.
Preferred structure is, the outer surface of described steel plate layer and rubber layer is enclosed with rubber cover.
Preferred structure is, described rubber layer is 29 layers, and described steel plate layer is 30 layers.
This utility model compared with prior art has the effect that high-damping large bearing capacity porous lead core rubber support, including rubber layer, steel plate house, rubber cover and four parts of lead for retractable pencil.Described lead for retractable pencil penetrates whole shock isolating pedestal from top to bottom, when lead for retractable pencil is 8-10 and is distributed along seating circumference, and the center of circle of all lead for retractable pencils is positioned on the concentric circular of same bearing and during the 56%-66% of described concentrically ringed a diameter of bearing diameter, the damping effect of this bearing is the strongest, it can make damping be more evenly distributed, and strengthens the structural stability of shock isolating pedestal.
This utility model single common with tradition rubber shock absorption support is compared, possess and be better than normally functioning requirement under the tradition highly energy-consuming of bearing, Self-resetting, thermal deformation, and meet ground average displacement (about 500mm) limit value under the big shake effect of China's earthquake resistant design code 9 degree (0.62g), bearing capacity meets emphasis class engineering seating plane pressure of setting up defences and is not more than the vertical bearing capacity needs not less than 10000KN, beneficially popularization and application under the conditions of 12MPa.
Accompanying drawing explanation
Fig. 1 is this utility model apparatus structure schematic diagram.
Fig. 2 is the A-A profile of Fig. 1.
In figure, 1-steel plate layer, 2-rubber layer, 3-lead for retractable pencil, 4-virtual concentric circle, 5-rubber cover.
Detailed description of the invention
Detailed description of the invention of the present utility model is described below in conjunction with the accompanying drawings; described embodiment is the exemplary illustration of this patent and does not limit its protection domain; those skilled in the art can carry out local to it and change; as long as no the spirit beyond this patent, the most all within the protection domain of this patent.
Embodiment one
A kind of high-damping large bearing capacity porous lead core rubber support, sees figures.1.and.2, and bearing be cylinder, and it includes that multiple diameter is identical and the steel plate layer 1 that is arranged alternately from top to bottom and rubber layer 2, and the described bearing the superiors and orlop are all steel plate layer 1.Also include the cylinder lead for retractable pencil 3 through all steel plate layer 1 and rubber layer 2, described lead for retractable pencil quantity is multiple and is evenly arranged along seating circumference direction, the center of circle of all lead for retractable pencils 3 is positioned on the virtual concentric circle 4 of same bearing, the 56%-66% that diameter h is bearing diameter H of described virtual concentric circle 4.Outer surface in described steel plate layer 1 and rubber layer 2 is enclosed with rubber cover 5.
In the present embodiment, lead for retractable pencil 3 is along the even circumferential distribution of the virtual concentric circle 4 of rubber support plane, analog result shows, when lead for retractable pencil 3 quantity is constant, increase along with lead for retractable pencil 3 place concentric circular diameter, single bearing stability and energy dissipation capacity become strong, but when concentric circular diameter is excessive, damping effect is deteriorated, by from the point of view of concentric circular diameter and the relation curve of damping effect, when the 56%-66%(now concentric circular area of concentric circular a diameter of rubber layer 2 diameter is the 31%-44% of rubber layer area) in the range of time, damping effect is the strongest.Along with its lead for retractable pencil energy dissipation capacity is more abundant, restorative higher after deformation.
Embodiment two
The present embodiment is with embodiment one difference, and described lead for retractable pencil 3 quantity is 8-10.Analog result shows, when keeping lead for retractable pencil place concentric circular diameter constant (circumferential position of lead for retractable pencil is constant), increase lead for retractable pencil quantity, reduce the sectional area (needing to keep lead for retractable pencil total sectional area constant, because the ratio between lead for retractable pencil area and bearing area should meet industry standard regulation) of single lead for retractable pencil.It is demonstrated experimentally that along with the increase of lead for retractable pencil quantity, the energy dissipation capacity of shock isolating pedestal is increasing, but the growth of shock isolating pedestal energy dissipation capacity is more and more slower along with the increase speedup of lead for retractable pencil quantity.Too much lead for retractable pencil quantity can cause the other problemses such as processing cost, and therefore COMPREHENSIVE CALCULATING result is, when lead for retractable pencil quantity is at 8-10, i.e. can obtain more preferable damping effect again can conservative control cost.
Embodiment three
The present embodiment is with embodiment two difference, and each lead for retractable pencil 3 outer rim is not less than the 10% of bearing cross sectional radius with the distance of bearing outer rim, simultaneously nor less than the radius of single lead for retractable pencil.
From the point of view of analog result, the outer rim distance of lead for retractable pencil outer rim distance rubber vibration isolation layer should be not less than the 10% of rubber layer radius, the radius of the most single lead for retractable pencil, so as not to cause that end stress is distributed uneven thus reduce the job stability of single shock isolating pedestal.
Claims (5)
1. a high-damping large bearing capacity porous lead core rubber support, described bearing is cylindrical, it includes that multiple diameter is identical and the steel plate layer that is arranged alternately from top to bottom and rubber layer, also include the cylinder lead for retractable pencil through all steel plate layer and rubber layer, it is characterized in that, described lead for retractable pencil quantity is multiple and is evenly arranged along seating circumference direction, and the center of circle of all lead for retractable pencils is positioned on the concentric circular of same bearing, the 56%-66% of described concentrically ringed a diameter of bearing diameter.
High-damping large bearing capacity porous lead core rubber support the most according to claim 1, it is characterised in that described lead for retractable pencil quantity is 8-10.
High-damping large bearing capacity porous lead core rubber support the most according to claim 1, it is characterised in that each lead for retractable pencil outer rim is not less than the 10% of bearing cross sectional radius with the distance of bearing outer rim, simultaneously nor less than the radius of single lead for retractable pencil.
4. according to high-damping large bearing capacity porous lead core rubber support described in claim 1-3 any one, it is characterised in that the described bearing the superiors and orlop are all steel plate layer.
5. according to high-damping large bearing capacity porous lead core rubber support described in claim 1-3 any one, it is characterised in that the outer surface of described steel plate layer and rubber layer is enclosed with rubber cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620288965.XU CN205444469U (en) | 2016-04-09 | 2016-04-09 | Porous lead core rubber support of big bearing capacity of high damping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620288965.XU CN205444469U (en) | 2016-04-09 | 2016-04-09 | Porous lead core rubber support of big bearing capacity of high damping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205444469U true CN205444469U (en) | 2016-08-10 |
Family
ID=56606830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620288965.XU Expired - Fee Related CN205444469U (en) | 2016-04-09 | 2016-04-09 | Porous lead core rubber support of big bearing capacity of high damping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205444469U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105649210A (en) * | 2016-04-09 | 2016-06-08 | 中国地震局工程力学研究所 | Porous lead rubber bearing with high damping capacity and large bearing capacity |
| CN110017050A (en) * | 2018-01-08 | 2019-07-16 | 香港理工大学 | Self-resetting shock isolating pedestal |
-
2016
- 2016-04-09 CN CN201620288965.XU patent/CN205444469U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105649210A (en) * | 2016-04-09 | 2016-06-08 | 中国地震局工程力学研究所 | Porous lead rubber bearing with high damping capacity and large bearing capacity |
| CN110017050A (en) * | 2018-01-08 | 2019-07-16 | 香港理工大学 | Self-resetting shock isolating pedestal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105649210A (en) | Porous lead rubber bearing with high damping capacity and large bearing capacity | |
| CN101275442B (en) | Vertical rigidity changeable shock insulation support saddle | |
| CN102797372B (en) | A kind of method guaranteeing nuclear power plant's safe operation when being caused tsunami by special violent earthquake | |
| CN205444469U (en) | Porous lead core rubber support of big bearing capacity of high damping | |
| CN103233526B (en) | A kind of enhancement Layer of adaptive damping | |
| CN106564571B (en) | Corrosion-resistant mobile chinampa | |
| CN102767237A (en) | Fiber and polytetrafluoroethylene plate rubber combined shock insulation support | |
| CN201962801U (en) | Shock-reducing and isolating rubber support of steel-lead combined core | |
| CN201128958Y (en) | Long-thread three-dimensional meridian dome net rod | |
| CN201221215Y (en) | Vertical rigidity-changeable shock insulation support | |
| CN205557314U (en) | Wind -resistant rubber shock insulation support | |
| CN206784418U (en) | A kind of agricultural greenhouse concrete pipe base | |
| CN102041775B (en) | Steel-lead combined core vibration-isolating rubber support | |
| CN106516026B (en) | Mobile chinampa | |
| CN102191872B (en) | Tower footing and tower body structure for space truss structure with constant strength and method for forming tower | |
| CN209308279U (en) | A kind of steel-FRP combined member | |
| CN203238806U (en) | Reinforced layer of variable damper | |
| CN107013074A (en) | The c-type shell Interlayer seismic isolation device and system of runback bit function are unloaded with threshold value flexing | |
| CN102787695A (en) | Core-sleeve combined pressure bar | |
| CN105696459A (en) | Positive direction variable-rigidity laminated rubber bearing | |
| CN205399716U (en) | C type cylinder shell is from restoring to throne shock attenuation shock insulation damping device | |
| CN205443905U (en) | Enclose district's hydraulic reclamation manpower equipment that gos forward | |
| CN203904925U (en) | Slope pier collision preventing device | |
| CN204124331U (en) | The floating on water surface adrm that can travel | |
| CN203795640U (en) | Vertically-series-connection variable-stiffness seismic isolation support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20160810 Termination date: 20190409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |