CN105464240A - Horizontal shearing locking shock isolation device - Google Patents

Horizontal shearing locking shock isolation device Download PDF

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Publication number
CN105464240A
CN105464240A CN201610012322.7A CN201610012322A CN105464240A CN 105464240 A CN105464240 A CN 105464240A CN 201610012322 A CN201610012322 A CN 201610012322A CN 105464240 A CN105464240 A CN 105464240A
Authority
CN
China
Prior art keywords
shear
horizontal
upper body
shear pin
screw
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.)
Pending
Application number
CN201610012322.7A
Other languages
Chinese (zh)
Inventor
李韶平
夏祖讽
刘文光
袁维念
杨杰
何文福
秦川
黄小林
王晓雯
田华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Nuclear Engineering Research and Design Institute Co Ltd
University of Shanghai for Science and Technology
Original Assignee
Shanghai Nuclear Engineering Research and Design Institute Co Ltd
University of Shanghai for Science and Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Nuclear Engineering Research and Design Institute Co Ltd, University of Shanghai for Science and Technology filed Critical Shanghai Nuclear Engineering Research and Design Institute Co Ltd
Priority to CN201610012322.7A priority Critical patent/CN105464240A/en
Publication of CN105464240A publication Critical patent/CN105464240A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92Protection against other undesired influences or dangers
    • E04B1/98Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

The invention relates to a horizontal shearing locking shock isolation device. The horizontal shearing locking shock isolation device comprises an upper body, hexagon socket cap screws, shear pins, a middle body, hexagon bolts, flat washers, hexagon socket cap screws, a lower body, a rubber rod, a sleeve and a cushion plate. The upper body and the upper structure are fixed through the hexagon bolts, the shear pins penetrate through the upper body and the middle body to be used for bearing horizontal shear force, the middle body and the rubber rod are connected, pre-tension force is applied to the middle body through the hexagon socket cap screws, the rubber rod is in a pre-tensioned state, and the sleeve limits horizontal motion of the middle body. Furthermore, the cushion plate and the rubber rod are bound through the vulcanization technology, pre-tension force is generated after the hexagon socket cap screws are tightened, the rubber rod is in a tensioned state through the pre-tension force, and therefore the purpose that the lower half portions of the shear pins rebound downwards after the shear pins are sheared off, and normal hysteresis of a rubber support is not affected is achieved.

Description

A kind of horizontal shear locking earthquake isolating equipment
Technical field
The invention belongs to building structure damper field, particularly a kind of horizontal shear blocking device.
Background technology
Nuclear power plant structure is as a kind of special construction system, and earthquake is one of biggest threat of its safety.When suffering earthquake, all structure, system, parts and the equipment of nuclear power station is almost excited simultaneously, the integrity of the integrality of entail dangers to structure and equipment, component function.
The life and property loss that special violent earthquake causes is startling, if special violent earthquake occurs in nuclear power station region, the consequence caused will be catastrophic.Within 1999, Chi-Chi Earthquake causes Taiwan first nuclear power station 2 compressor emergency shutdowns; Japan Niigata earthquake in 2007; cause Bai Qi to cut plumage nuclear power station to close; there are 9.0 grades of violent earthquakes in coastal waters, Miyagi Prefecture, Japan in 2011; Fukushima nuclear power station 4 units are caused to be blasted; cause serious nuclear leakage accident, the economy caused, environmental loss are difficult to estimate.
Current nuclear power station structure design is still based on traditional anti-seismic technology, emerging earthquake isolation technology is seriously delayed at the research and apply of nuclear power station construction applications, up to now in the whole world all commercial off-the-shelfs nuclear power plant, two are only had to employ base isolation technology.Within 1977, first rubber isolator is used for the Koeberg nuclear power station in South Africa, within 1984, is applied to the Cruas nuclear power station of France.Shock insulation effectively can reduce the acceleration earthquake reaction of nuclear island, but the over-large displacement of Seismic Isolation of Isolation Layer may cause turnover nuclear island line break simultaneously, easily causes secondary destruction.This becomes the key issue that restriction seismic isolation technology is applied in nuclear power structure.
Summary of the invention
Consider the limitation of existing technology, the object of this invention is to provide a kind of horizontal shear locking earthquake isolating equipment, for the shock design to Seismic Isolation of Isolation Layer displacement Sensitive Buildings structure, make nuclear power station isolation structure under small earthquakes effect, geological process is resisted by superstructure, earthquake isolating equipment is in blocking, unlock when large shake carrys out interim blocking device, shock isolating pedestal enters work, ensured the safety of superstructure to distortion earthquake energy by the level of shock isolating pedestal, and shear pin is cut off rear the latter half can resilience downwards, do not affect the normal hysteresis of neoprene bearing.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of horizontal shear locking earthquake isolating equipment, comprises upper body, hexagon socket cap head screw, shear pin, intermediate, hexagon-headed bolt, plain washer, hexagon socket cap head screw, lower body, rubber bar, sleeve, backing plate; Described upper body is fixed by hexagon-headed bolt and superstructure, shear-pin is used for bearing horizontal shear force through upper body and intermediate, intermediate is connected with rubber bar, applying pretension by hexagon socket cap head screw to intermediate makes rubber bar be in pre-tension state, the motion of sleeve restriction intermediate levels.
Further, described backing plate and rubber bar bonding is made by sulfuration process, produce a pretension after tightening hexagon socket cap head screw, pretension makes rubber bar be in tension state thus realizes shear pin to be cut off the resilience downwards of rear the latter half, does not affect the object of the normal hysteresis of neoprene bearing.
Compared with prior art, the present invention has following outstanding advantage:
1), in solving, under small earthquake effect, the displacement of shock insulation nuclear power station Seismic Isolation of Isolation Layer is excessive to be caused line fracture thus causes the problem of secondary destruction, and blocking device unlocks under large shake effect, and shock isolating pedestal enters consumption in operation seismic energy.
2) shear pin can be realized and cut off the resilience downwards of rear the latter half, not affect the object of the normal hysteresis of neoprene bearing.
3) blocking device has the feature of anti-pulling simultaneously, prevents the vertical deformation that structure is excessive.
4) after blocking device unblock, double threaded screw is cut off, and upper and lower sleeve does not damage, and can reuse after shake.
Accompanying drawing explanation
Fig. 1 is blocking device sectional drawing.
Fig. 2 is upper body section and top view.
Fig. 3 is shear-pin sectional drawing and plan view.
Fig. 4 is intermediate sectional drawing and top view.
Fig. 5 is intermediate upper plate sectional drawing and top view.
Fig. 6 is intermediate lower plate sectional drawing and top view.
Fig. 7 is lower body sectional drawing and top view.
Detailed description of the invention
Below in conjunction with accompanying drawing, specific embodiments of the invention are further described.
Embodiment 1
As shown in Fig. 1-Fig. 7, a kind of horizontal shear locking earthquake isolating equipment, a kind of horizontal shear locking earthquake isolating equipment, it is characterized in that, comprise upper body (1), hexagon socket cap head screw (2), shear pin (3), intermediate (4), hexagon-headed bolt (5), plain washer (6), hexagon socket cap head screw (7), lower body (8), rubber bar (9), sleeve (10), backing plate (11); Described upper body (1) is fixed by hexagon-headed bolt (5) and superstructure, shear-pin (3) through upper body (1) and intermediate (4) for bearing horizontal shear force, intermediate (4) is connected with rubber bar (9), applying pretension by hexagon socket cap head screw (2) to intermediate (4) makes rubber bar (9) be in pre-tension state, sleeve (10) restriction intermediate (4) horizontal movement.Described blocking device makes described backing plate (11) bond with intermediate (4) and rubber bar (9) by sulfuration process, described hexagon socket cap head screw (7) is for connection backing plate (11) and lower body (8), hexagon socket cap head screw (2) connects upper body and intermediate, tighten hexagon socket cap head screw (2) and produce a pretension afterwards, pretension makes rubber bar (9) be in tension state thus realizes shear pin (3) to be cut off the resilience downwards of rear the latter half, does not affect the object of the normal hysteresis of neoprene bearing.

Claims (6)

1. a horizontal shear locking earthquake isolating equipment, it is characterized in that, comprise upper body (1), screw (2), shear pin (3), intermediate (4), bolt (5), plain washer (6), screw (7), lower body (8), rubber bar (9), sleeve (10), backing plate (11); Described upper body (1) is fixed by hexagon-headed bolt (5) and superstructure, shear-pin (3) through upper body (1) and intermediate (4) for bearing horizontal shear force, intermediate (4) is connected with rubber bar (9), applying pretension by hexagon socket cap head screw (2) to intermediate (4) makes rubber bar (9) be in pre-tension state, sleeve (10) restriction intermediate (4) horizontal movement.
2. a kind of horizontal shear locking earthquake isolating equipment according to claim 1, is characterized in that, described upper body (1) and intermediate (4) center are reserved with circular hole, in order to insert shear pin (3).
3. a kind of horizontal shear locking earthquake isolating equipment according to claim 1, it is characterized in that, described blocking device assembled after and neoprene bearing with the use of, upper body (1) and lower body (8) produce horizontal movement under geological process, and power transmission is to shear pin (3), shear pin (3) is this moment stressed, horizontal lock effect is played under little shake effect, fracture is sheared when violent earthquake carrys out interim shear pin (3), neoprene bearing starts to play a role, and level is moved consumed energy.
4. a kind of horizontal shear locking earthquake isolating equipment according to claim 1, it is characterized in that, by sulfuration process, described backing plate (11) is bondd with intermediate (4) and rubber bar (9), described screw (7) is for connection backing plate (11) and lower body (8), screw (2) connects upper body and intermediate, tighten screw (2) and produce a pretension afterwards, pretension makes rubber bar (9) be in tension state thus realizes shear pin (3) to be cut off the resilience downwards of rear the latter half, does not affect the object of the normal hysteresis of neoprene bearing.
5. a kind of horizontal shear locking earthquake isolating equipment according to claim 3, is characterized in that, in the upper default weak section of shear pin (3), ensures that section when shear pin (3) is cut off is positioned at this weak section.
6. a kind of horizontal shear locking earthquake isolating equipment according to claim 3, is characterized in that this shear lo cking device is provided with multiple shear pin.
CN201610012322.7A 2016-01-08 2016-01-08 Horizontal shearing locking shock isolation device Pending CN105464240A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610012322.7A CN105464240A (en) 2016-01-08 2016-01-08 Horizontal shearing locking shock isolation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610012322.7A CN105464240A (en) 2016-01-08 2016-01-08 Horizontal shearing locking shock isolation device

Publications (1)

Publication Number Publication Date
CN105464240A true CN105464240A (en) 2016-04-06

Family

ID=55602356

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610012322.7A Pending CN105464240A (en) 2016-01-08 2016-01-08 Horizontal shearing locking shock isolation device

Country Status (1)

Country Link
CN (1) CN105464240A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110424546A (en) * 2019-06-25 2019-11-08 上海大学 A kind of locking slide type multistage earthquake isolating equipment
CN114457928A (en) * 2022-01-26 2022-05-10 广州大学 Multistage damper for vibration double-control vibration isolation layer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201593164U (en) * 2010-01-28 2010-09-29 成都市新筑路桥机械股份有限公司 Shock absorption and isolation support for bridges
CN202416163U (en) * 2012-01-29 2012-09-05 北京国道通公路设计研究院股份有限公司 Multi-stage lead core rubber shock insulation support
CN203594130U (en) * 2013-11-07 2014-05-14 上海大学 Horizontal shearing shutting vibration isolation device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201593164U (en) * 2010-01-28 2010-09-29 成都市新筑路桥机械股份有限公司 Shock absorption and isolation support for bridges
CN202416163U (en) * 2012-01-29 2012-09-05 北京国道通公路设计研究院股份有限公司 Multi-stage lead core rubber shock insulation support
CN203594130U (en) * 2013-11-07 2014-05-14 上海大学 Horizontal shearing shutting vibration isolation device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110424546A (en) * 2019-06-25 2019-11-08 上海大学 A kind of locking slide type multistage earthquake isolating equipment
CN114457928A (en) * 2022-01-26 2022-05-10 广州大学 Multistage damper for vibration double-control vibration isolation layer

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Application publication date: 20160406