CN205329888U - Modular automatic resilience type horizontal shear blocking device of pre -compaction - Google Patents
Modular automatic resilience type horizontal shear blocking device of pre -compaction Download PDFInfo
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- CN205329888U CN205329888U CN201620017385.7U CN201620017385U CN205329888U CN 205329888 U CN205329888 U CN 205329888U CN 201620017385 U CN201620017385 U CN 201620017385U CN 205329888 U CN205329888 U CN 205329888U
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Abstract
The utility model relates to a modular automatic resilience type horizontal shear blocking device of pre -compaction, including this embodiment upper part of the body inner ring 2, upper part of the body outer loop 1, shearing pin 3, interior body 4, high strength bolt 5 -6, the lower part of the body 7, rubber pad 8, steel sheet 9, the shearing pin 3 tip is equipped with the screw thread, interior body all is equipped with the screw hole in the two sides about in the of 4, upper part of the body inner ring 2 passes through welded connection with upper part of the body outer loop 1, affiliated upper part of the body inner ring 2 is connected through shearing pin with interior body 4, interior body 4 is connected through high strength bolt 6 with the lower part of the body 7, rubber pad 8 bonds fixedly with the lower part of the body 7 through adhesive material, steel sheet 9 is connected through high strength bolt 6 with the lower part of the body 7, device bilateral symmetry. This blocking device assembly is accomplished the back upper part of the body and is produced horizontal displacement with the lower part of the body under seismic action, and body 4 passes power and gives shearing pin 3 in this moment, and shearing pin 3 is the atress this moment, plays level locking effect in that little shake effect is lower, comes interim shearing pin 3 to be begun to play a role by shear fracture, rubber support when the violent earthquake, and level emergence removal consumed energy can make 4 production vertical displacement of interior body through 8 pre -compaction of rubber pad, the hindrances of 4 removals of internal body when avoiding the support round trip movement.
Description
Technical field
This utility model belongs to building structure damper field, particularly to combination type precompressed automatic rebounding type 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 of structure of nuclear power station, system, parts and equipment are almost excited simultaneously, the integrity of the integrity 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 2 compressor emergency shutdowns of Taiwan the first nuclear power station; the new earthquake of Japan in 2007; cause that Bai Qi cuts plumage nuclear power station and closes; there are 9.0 grades of violent earthquakes in coastal waters, Miyagi Prefecture, Japan in 2011; cause that 4 units of Fukushima nuclear power station are blasted; causing serious nuclear leakage accident, the economy caused, environmental loss are difficult to estimate。
Current nuclear power station structural design is still based on traditional anti-seismic technology, emerging earthquake isolation technology is seriously delayed with application in the research of nuclear power station construction applications, up to now in the whole world all commercial off-the-shelfs nuclear power plant, only two employ base isolation technology。First rubber isolator is used for the Koeberg nuclear power station in South Africa for 1977, within 1984, is applied to the Cruas nuclear power station of France。Shock insulation can effectively reduce the acceleration earthquake reaction of nuclear island, but the over-large displacement of Seismic Isolation of Isolation Layer may result in 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。
Utility model content
Consider the limitation of existing technology, the purpose of this utility model is to provide combination type precompressed automatic rebounding type horizontal shear blocking device, for the shock design to Seismic Isolation of Isolation Layer displacement Sensitive Buildings structure, make nuclear power station isolation structure under small earthquakes effect, being resisted geological process by superstructure, earthquake isolating equipment is in blocking, unlocks when big shake carrys out interim blocking device, shock isolating pedestal entrance work, ensures the safety of superstructure by the level of shock isolating pedestal to deformation earthquake energy。
For achieving the above object, the technical solution adopted in the utility model is as follows:
Combination type precompressed automatic rebounding type horizontal shear blocking device, including upper body internal ring, upper body outer shroud, shear pin, interior body, high-strength bolt, lower body, rubber blanket, steel plate；Described upper body internal ring and upper body outer shroud are by being welded to connect；Affiliated upper body internal ring and interior body are connected by shear pin；Described interior body is connected by high-strength bolt with lower body；Described rubber blanket and lower body are fixing by binding material bonding；Affiliated steel plate is connected by high-strength bolt with lower body, and device is symmetrical。
Further, the end of described shear pin is provided with screw thread, upper body internal ring and interior body is fixed by tightening screw thread。
Compared with prior art, this utility model has following prominent advantage:
1) in solving, under small earthquake effect, shock insulation nuclear power station Seismic Isolation of Isolation Layer displacement is excessive causes line fracture thus causing the problem of secondary destruction, and blocking device unlocks under big shake effect, and shock isolating pedestal enters consumption in operation seismic energy。
2) lock-in threshold of blocking device can be changed by regulating the material of high-strength shear key, quantity, size and weak section diameter, thus reaching designing requirement。
3) rubber blanket that blocking device is connected with lower body has rebound characteristics, when high-strength bolt junction steel plate, lower body and interior body, and rubber blanket precompressed, after shear pin is cut off, rubber resilience, interior body produces vertical displacement, it is to avoid the obstruction that upper body internal ring moved when bearing moves back and forth。
4) after blocking device unlocks, shear pin is cut off, and upper body and lower body all do not damage, repeatable utilization after shake。
Accompanying drawing explanation
Fig. 1 is horizontal shear locking earthquake isolating equipment profile。
Fig. 2 is horizontal shear locking earthquake isolating equipment upper body profile。
Fig. 3 is horizontal shear locking earthquake isolating equipment upper body top view。
Fig. 4 is horizontal shear locking earthquake isolating equipment upper body internal ring front view。
Fig. 5 is horizontal shear locking earthquake isolating equipment upper body internal ring top view。
Fig. 6 is horizontal shear locking earthquake isolating equipment upper body outer shroud profile。
Fig. 7 is horizontal shear locking earthquake isolating equipment upper body outer shroud top view。
Fig. 8 is horizontal shear locking earthquake isolating equipment shear pin schematic diagram。
Fig. 9 is body profile in horizontal shear locking earthquake isolating equipment。
Figure 10 is body top view in horizontal shear locking earthquake isolating equipment。
Figure 11 is horizontal shear locking earthquake isolating equipment lower body profile。
Figure 12 is horizontal shear locking earthquake isolating equipment lower body top view。
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of utility model is further described。
Embodiment
As shown in Fig. 1-Figure 12, described in the present embodiment, horizontal shear locking earthquake isolating equipment includes upper body internal ring 2, upper body outer shroud 1, shear pin 3, interior body 4, high-strength bolt 5-6, lower body 7, rubber blanket 8, steel plate 9；Described shear pin 3 end is provided with screw thread；Described interior body 4 upper and lower surface is equipped with screwed hole；Described upper body internal ring 2 and upper body outer shroud 1 are by being welded to connect；Affiliated upper body internal ring 2 and interior body 4 are connected by shear pin；Described interior body 4 is connected by high-strength bolt 6 with lower body 7；Described rubber blanket 8 and lower body 7 are fixing by binding material bonding；Described steel plate 9 is connected by high-strength bolt 6 with lower body 7, and device is symmetrical。
This blocking device has assembled rear upper body and lower body and has produced horizontal displacement under geological process, now interior body 4 power transmission is to shear pin 3, shear pin 3 stress this moment, horizontal lock effect is played under little shake effect, being sheared fracture when violent earthquake carrys out interim shear pin 3, rubber support starts to play a role, and level is moved consumed energy, interior body 4 can be made to produce vertical displacement by rubber blanket 8 precompressed, it is to avoid the obstruction that when bearing moves back and forth, internal body 4 moves。
Claims (4)
1. combination type precompressed automatic rebounding type horizontal shear blocking device, it is characterized in that, including upper body outer shroud (1), upper body internal ring (2), shear pin (3), interior body (4), high-strength bolt (5), high-strength bolt (6), lower body (7), rubber blanket (8), steel plate (9)；Upper body outer shroud (1) and upper body internal ring (2) are by being welded to connect；Upper body internal ring (2) is connected by shear pin (3) with interior body (4)；Interior body (4) is connected by high-strength bolt (6) with lower body (7)；Rubber blanket (8) is got up by binding material bonding with lower body (7)；Lower body (7) is connected by high-strength bolt (6) with steel plate (9), and device tiled configuration is symmetrical。
2. combination type precompressed automatic rebounding type horizontal shear blocking device according to claim 1, it is characterized in that, described shear pin (3) end is provided with screw thread, and the preformed hole that interior body (4) is connected with upper body internal ring (2) is screwed hole。
3. combination type precompressed automatic rebounding type horizontal shear blocking device according to claim 1, it is characterized in that, described blocking device has assembled rear upper body and lower body and has produced horizontal displacement under geological process, now interior body (4) power transmission is to shear pin (3), shear pin (3) stress this moment, horizontal lock effect is played under little shake effect, it is sheared fracture when violent earthquake carrys out interim shear pin (3), rubber support starts to play a role, and level is moved consumed energy。
4. combination type precompressed automatic rebounding type horizontal shear blocking device according to claim 1, it is characterized in that, by high-strength bolt (6) junction steel plate (9), rubber blanket (8), lower body (7), interior body (4), make rubber blanket (8) precompressed, after shear pin (3) is cut off, rubber blanket (8) resilience, interior body (4) is made to move down, avoid bearing when moving back and forth, the obstruction that upper body is moved by interior body (4)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620017385.7U CN205329888U (en) | 2016-01-08 | 2016-01-08 | Modular automatic resilience type horizontal shear blocking device of pre -compaction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620017385.7U CN205329888U (en) | 2016-01-08 | 2016-01-08 | Modular automatic resilience type horizontal shear blocking device of pre -compaction |
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| CN205329888U true CN205329888U (en) | 2016-06-22 |
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| CN201620017385.7U Active CN205329888U (en) | 2016-01-08 | 2016-01-08 | Modular automatic resilience type horizontal shear blocking device of pre -compaction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464239A (en) * | 2016-01-08 | 2016-04-06 | 上海核工程研究设计院 | Combined pre-compression automatic rebound horizontal shearing locking device |
| CN110424546A (en) * | 2019-06-25 | 2019-11-08 | 上海大学 | A kind of locking slide type multistage earthquake isolating equipment |
-
2016
- 2016-01-08 CN CN201620017385.7U patent/CN205329888U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464239A (en) * | 2016-01-08 | 2016-04-06 | 上海核工程研究设计院 | Combined pre-compression automatic rebound horizontal shearing locking device |
| CN110424546A (en) * | 2019-06-25 | 2019-11-08 | 上海大学 | A kind of locking slide type multistage earthquake isolating equipment |
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