CN209429304U - A kind of double rank sliding friction dampers of brace type - Google Patents
A kind of double rank sliding friction dampers of brace type Download PDFInfo
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- CN209429304U CN209429304U CN201822108358.2U CN201822108358U CN209429304U CN 209429304 U CN209429304 U CN 209429304U CN 201822108358 U CN201822108358 U CN 201822108358U CN 209429304 U CN209429304 U CN 209429304U
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Abstract
The utility model discloses a kind of double rank sliding friction dampers of brace type, and the channel steel beam section of H profile steel beam section and web fluting including web fluting, oval notch of different sizes is respectively set in H profile steel beam section both ends, to correspond to first-order slip-flow section and second-order slip-flow section；H profile steel beam section, friction element, channel steel beam section steel are fixed by frictional high-strength bolts and butterfly spring, by adjusting disc spring quantity and the pretightning force of frictional high-strength bolts, to realize double rank sliding mechanisms；It can guarantee building structure in frequently occurred earthquake, single order, which rises to slide, is displaced the friction energy-dissipating that takes the lead in, and in rarely occurred earthquake, second order plays sliding section and not only can guarantee enough bearing capacities but also had biggish friction energy-dissipating ability；Improve destabilization problems outside frcition damper face；Each part replacement is easy to maintain；And the butterfly spring rigidity that the utility model uses is big, restorability is strong, can be substantially reduced bolt pretightening loss, in tension and compression deformation so as to guarantee that damper plays maximum damping capacity.
Description
Technical field
The utility model relates to damper field, the double rank sliding friction dampers of especially a kind of brace type.
Background technique
Violent earthquake occurs often for recent domestic, in the BEFORE SOME STRONG EARTHQUAKES that especially China has been undergone since 2008, has
A large amount of reinforced concrete frame structures collapse, and cause serious casualties.Mainly building of tracing it to its cause lacks
Enough ductility and energy dissipation capacity.Frcition damper has full and stable hysteretic energy characteristic, is the energy dissipating of reliable performance
Cushioning members have been widely used in shock-damping structure.
The principle of frcition damper is that building structure causes floor relative storey displacement under geological process, to drive in the position
Axial reciprocal transformation occurs for the frcition damper set, and the combined member and friction plate of frcition damper are done under certain pretightning force
At a mechanism that can generate sliding and frictional force, using force of sliding friction acting come dissipation energy, so as to protect
Or mitigate the damage of building.For the shock resistance of lift structure, at present using it is more be structural damping technology and structure
Seismic isolation technology.
With the development of the social economy, urbanization process is accelerated, resource is concentrated in limited region inner height, and people are urgent
Ground Structure of need can dissipate the energy of external load input under frequently occurred earthquake, while guarantee enough rigidities of structure, rare
Enough ductility will be had by meeting under earthquake；The damper of i.e. double rank energy consumption functions.
But since existing friction Buddhist nun's device is occurred under pre-tension relatively by the combined member and friction plate of itself
Sliding is to consume energy, and residual deformation is larger after structure is plastically deformed after the earthquake, and frcition damper can not restore
To original operating states, repaired after being unfavorable for shake.
Utility model content
Purpose of utility model: in order to solve the problems of prior art, the utility model provides a kind of brace type
Double rank sliding friction dampers,
Technical solution: in order to achieve the above objectives, following technical solution can be used in the utility model: the double rank slidings of brace type rub
Wipe damper, including H profile steel beam section, friction element, channel steel beam section, frictional high-strength bolts, butterfly spring, high-strength gasket；
Shape steel web is equipped in the middle part of the H profile steel beam section；The shape steel web is divided into two and half sections toward both sides from intermediate, and one
Section is first-order slip-flow section, and another section is second-order slip-flow section；The multiple short circular groove mouths of an at least row are offered in the first-order slip-flow section；
At least one oval notch is opened up in the second-order slip-flow section；
Two sides of the shape steel web are fitted with friction element respectively；
The channel steel beam section is four pieces；Trench bottom is channel steel web, and the side of the channel steel web offers multiple circular grooves
Mouthful；Two pieces of channel steel beam sections are fitted in the outside of shape steel web first-order slip-flow section two sides friction element；Two pieces of channel steel beam sections are fitted in
The outside of shape steel web second-order slip-flow section two sides friction element；It is offered on the friction element consistent with the big thin tail sheep of circular groove mouth
Friction element circular groove mouth；
The H profile steel beam section, friction element, channel steel beam section pass through frictional high-strength bolts, butterfly spring and high-strength pad
Piece is fixed；The frictional high-strength bolts sequentially pass through oval notch or short circular groove mouth, friction element on shape steel web
Circular groove mouth, butterfly spring, high-strength gasket on circular groove mouth, channel steel web are cooperated with corresponding nut.
In some embodiments, the H profile steel beam section is solder type or roller-compaction.
In some embodiments, the length of the short circular groove mouth is not less than the building structure of application under frequently occurred earthquake
Relative storey displacement；Relative storey displacement of the length of the oval notch not less than the building structure applied under rarely occurred earthquake.
More preferably, the friction element is composite friction material, metal class friction material, polymerization species friction material
One of.
In some embodiments, the friction element of two sides of shape steel web fitting is in first-order slip-flow section and second order
Slide section coefficient of friction it is identical, at this time can by the frictional high-strength bolts pretightning force to first-order slip-flow section, second-order slip-flow section with
And the quantity of butterfly spring carries out different settings to realize second-order slip-flow.
In some embodiments, the friction element of two sides of shape steel web fitting is in first-order slip-flow section and second order
It is different to slide section coefficient of friction, wherein the coefficient of friction in the friction element of second-order slip-flow section is larger.
In some embodiments, the circular groove mouth size and frictional high-strength bolts size one opened up on the channel steel web
It causes；
In some embodiments, the quantity of the butterfly spring is multiple, selects rigidity and the big butterfly of bearing capacity
Spring.
In some embodiments, the internal diameter of the high-strength gasket is greater than the outer diameter of the frictional high-strength bolts；Outer diameter
Not less than the butterfly spring outer diameter.
In some embodiments, the frictional high-strength bolts of the first-order slip-flow section, the bearing capacity of channel steel beam section are hindering
Elastic stage is kept under Buddhist nun's device ultimate load.
The utility model has the advantages that a kind of double rank sliding friction dampers of brace type disclosed in the utility model, by adjusting friction
The different oval notch of stroke and short is respectively set at the both ends of H profile steel beam section in the pretightning force of element and the high-strength bolt that rubs
Circular groove mouth can guarantee building structure in frequently occurred earthquake, and single order, which rises to slide, is displaced take the lead in friction energy-dissipating, in rarely occurred earthquake, two
Rank plays sliding section and not only can guarantee enough bearing capacities but also had biggish friction energy-dissipating ability；Fashioned iron and channel steel is made full use of to construct special
Point plays the performance of steel, improves destabilization problems outside frcition damper face；And the utility model core component is to pass through spiral shell
It tethers and connects, belong to assembled in situ formula building, do not influence the construction period, it is environmentally protective, and replaceable, convenience is more after shake
Height, either meeting with which kind of earthquake can guarantee that damper is worked normally by replacement friction element and butterfly spring；This reality
Big with the novel butterfly spring rigidity used, restorability is strong, and bolt pretightening loss can be substantially reduced in tension and compression deformation,
So as to guarantee that damper plays maximum damping capacity.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the double rank sliding friction dampers of 1 brace type of the utility model embodiment；
Fig. 2 is the left view direction cross section structure signal of the double rank sliding friction dampers of 1 brace type of the utility model embodiment
Figure；
Fig. 3 is the H profile steel beam section structural schematic diagram of the double rank sliding friction dampers of 1 brace type of the utility model embodiment；
Fig. 4 is the friction element structural schematic diagram of the double rank sliding friction dampers of 1 brace type of the utility model embodiment；
Fig. 5 is the steel channel beam segment structure schematic diagram of the double rank sliding friction dampers of 1 brace type of the utility model embodiment；
Fig. 6 is the high-strength gasket construction schematic diagram of the double rank sliding friction dampers of 1 brace type of the utility model embodiment；
Fig. 7 is the butterfly spring structural schematic diagram of the double rank sliding friction dampers of 1 brace type of the utility model embodiment；
Fig. 8 is the frictional high-strength bolts of the double rank sliding friction dampers of 1 brace type of the utility model embodiment and matches
The nut structure schematic diagram of conjunction；
Fig. 9 is the double rank sliding friction damper first-order slip-flow section sliding friction displacements of 1 brace type of the utility model embodiment
Schematic diagram；
Figure 10 is the double rank sliding friction damper second-order slip-flow section sliding friction displacements of 1 brace type of the utility model embodiment
Schematic diagram；
Figure 11 is the stagnant of the double rank sliding friction dampers of the double rank sliding friction dampers of 1 brace type of the utility model embodiment
Return curve synoptic diagram.
Specific embodiment
Embodiment 1:
It please refers to shown in Fig. 1-11, the utility model discloses a kind of double rank sliding friction dampers of brace type, including H-type
Girder steel section 1, friction element 2, channel steel beam section 3, frictional high-strength bolts 4, butterfly spring 5, high-strength gasket 6；Institute's H profile steel beam section 1
And channel steel beam section 3 is that steel mill disposably rolls and is made；The length of H profile steel beam section 1 can be according to the design of application building structure
Demand is adjusted.On the one hand the effect of channel steel beam section 3 can be used as the external connection equipment of damper, be on the other hand entire
Damper provides stable rubbing surface.The frictional high-strength bolts 4 of the first-order slip-flow section, the bearing capacity of channel steel beam section 3 are hindering
Elastic stage is kept under Buddhist nun's device ultimate load.
Shape steel web 11 is equipped in the middle part of the H profile steel beam section 1；The shape steel web 11 is divided into two and half toward both sides from intermediate
Section, one section is first-order slip-flow section, and another section is second-order slip-flow section；The multiple short circles of an at least row are offered in the first-order slip-flow section
Notch 112 rises for single order to be slided；At least one oval notch 111 is opened up in the second-order slip-flow section plays cunning for second order；Wherein, oval
Notch 111 is strip, reserves the space being sufficient to extend through for frictional high-strength bolts 4；The length of the short circular groove mouth 112 is not
Less than relative storey displacement of the building structure under frequently occurred earthquake of application；The length of the oval notch 111 is built not less than application
Relative storey displacement of the building structure under rarely occurred earthquake.
11 two sides of the shape steel web are fitted with friction element 2 respectively；The friction element 2 is specially brass；
Friction element 2 is different in first-order slip-flow section and second-order slip-flow section coefficient of friction, wherein the friction element in second-order slip-flow section rubs
It is larger to wipe coefficient；It is smaller in the coefficient of friction of first-order slip-flow section.
The channel steel beam section 3 is four pieces；Trench bottom is channel steel web 31, and the side of the channel steel web 31 offers multiple
Circular groove mouth 311；Size is consistent with 4 size of frictional high-strength bolts；Two pieces of channel steel beam sections 3 are fitted in 11 first-order slip-flow of shape steel web
The outside of section two sides friction element 2；Two pieces of channel steel beam sections 3 are fitted in 11 second-order slip-flow section two sides friction element 2 of shape steel web
Outside；It is offered on the friction element 2 and the consistent friction element circular groove mouth 21 of the big thin tail sheep of circular groove mouth 311；
The H profile steel beam section 1, friction element 2, channel steel beam section 3 pass through frictional high-strength bolts 4, butterfly spring 5 and height
Strong gasket 6 is fixed；The pretightning force of each frictional high-strength bolts 4 is calculated according to the size of frictional force.
In first-order slip-flow section, the frictional high-strength bolts 4 sequentially pass through short circular groove mouth 112 on shape steel web 11, rub
Element circular groove mouth 21, the circular groove mouth 311 on channel steel web 31, butterfly spring 5, high-strength gasket 6 is wiped to be matched with corresponding nut
It closes；
In second-order slip-flow section, the frictional high-strength bolts 4 sequentially pass through oval notch 111 on shape steel web 11, rub
Element circular groove mouth 21, the circular groove mouth 311 on channel steel web 31, butterfly spring 5, high-strength gasket 6 is wiped to be matched with corresponding nut
It closes；
The quantity of the butterfly spring 5 be it is multiple, select rigidity and the big butterfly spring 5 of bearing capacity；Its required number
It can be calculated according to the pretightning force of frictional high-strength bolts 4 and the bearing capacity of butterfly spring 5.The high-strength gasket 6 it is interior
Diameter is greater than the outer diameter of the frictional high-strength bolts 4；Outer diameter is not less than 5 outer diameter of butterfly spring；Dish can more preferably be kept
Spring rigidity is not lost, so as to guarantee the fatigue behaviour of damper.
A kind of double rank sliding friction dampers of brace type of the utility model provide pretightning force by frictional high-strength bolts 4,
Guarantee that friction face contact is stablized；Butterfly spring 5 guarantees that frcition damper bolt pretightening in reciprocating motion loses；It is not influencing
Building carries out seismic hardening to building using under the premise of function, is rubbed in frequently occurred earthquake with realizing that frcition damper can be realized
Wipe energy consumption；The frictional force of bolt is relied on to resist the axial push-pull of damper in the frictional high-strength bolts 4 that single order plays sliding displaced segments
Deformation, specifically refers to shown in Fig. 9, plays sliding stage frictional high-strength bolts 4 in second order and resists damping by the frictional force of bolt
The axial push-pull of device deforms, and specifically can refer to shown in Figure 10；The friction high-strength bolt 4 that single order plays sliding displaced segments relies on and fashioned iron abdomen
Axial push-pull deformation is resisted in the screw rod shearing resistance that plate 11 contacts bolt.
It is that a kind of hysteresis of the double rank sliding friction dampers of brace type of the utility model is bent in addition, please referring to shown in Figure 11
Line schematic diagram；The damper can the friction energy-dissipating under small shake, big shake respectively, bearing capacity when small shake is less than carrying when big shake
Power.
Claims (10)
1. a kind of double rank sliding friction dampers of brace type, it is characterised in that including H profile steel beam section (1), friction element (2), slot
Girder steel section (3), frictional high-strength bolts (4), butterfly spring (5), high-strength gasket (6)；
Shape steel web (11) are equipped in the middle part of the H profile steel beam section (1)；The shape steel web (11) is divided into two toward both sides from intermediate
Half section, one section is first-order slip-flow section, and another section is second-order slip-flow section；It is multiple short that an at least row is offered in the first-order slip-flow section
Circular groove mouth (112)；At least one oval notch (111) is opened up in the second-order slip-flow section；
(11) two sides of the shape steel web are fitted with friction element (2) respectively；
The channel steel beam section (3) is four pieces；Trench bottom is channel steel web (31), and the side of the channel steel web (31) offers more
A circular groove mouth (311)；Two pieces of channel steel beam sections (3) are fitted in the outer of shape steel web (11) first-order slip-flow section two sides friction element (2)
Side；Two pieces of channel steel beam sections (3) are fitted in the outside of shape steel web (11) second-order slip-flow section two sides friction element (2)；The friction
It is offered on element (2) and the consistent friction element circular groove mouth (21) of the big thin tail sheep of circular groove mouth (311)；
The H profile steel beam section (1), friction element (2), channel steel beam section (3) pass through frictional high-strength bolts (4), butterfly spring (5)
And high-strength gasket (6) is fixed；The frictional high-strength bolts (4) sequentially pass through the oval notch on shape steel web (11)
(111) or short circular groove mouth (112), friction element circular groove mouth (21), the circular groove mouth (311) on channel steel web (31), butterfly spring
(5), high-strength gasket (6) is cooperated with corresponding nut.
2. the double rank sliding friction dampers of brace type according to claim 1, it is characterised in that: the H profile steel beam section (1)
For solder type or roller-compaction.
3. the double rank sliding friction dampers of brace type according to claim 1, it is characterised in that: the short circular groove mouth
(112) relative storey displacement of the length not less than the building structure applied under frequently occurred earthquake；The length of the oval notch (111)
Not less than relative storey displacement of the building structure under rarely occurred earthquake of application.
4. the double rank sliding friction dampers of brace type according to claim 1, it is characterised in that: the friction element (2)
For one of composite friction material, metal class friction material, polymerization species friction material.
5. the double rank sliding friction dampers of brace type according to claim 1 or 4, it is characterised in that: the shape steel web
The friction element (2) of (11) two sides fitting is identical with second-order slip-flow section coefficient of friction in first-order slip-flow section, first-order slip-flow section,
Frictional high-strength bolts (4) pretightning force of second-order slip-flow section and the quantity of butterfly spring (5) are different.
6. the double rank sliding friction dampers of brace type according to claim 1 or 4, it is characterised in that: the shape steel web
The friction element (2) of (11) two sides fitting is different with second-order slip-flow section coefficient of friction in first-order slip-flow section, wherein in second order
The coefficient of friction for sliding the friction element (2) of section is larger.
7. the double rank sliding friction dampers of brace type according to claim 1, it is characterised in that: the channel steel web (31)
On circular groove mouth (311) size that opens up it is consistent with frictional high-strength bolts (4) size.
8. the double rank sliding friction dampers of brace type according to claim 1, it is characterised in that: the butterfly spring (5)
Quantity be it is multiple, select rigidity and the big butterfly spring (5) of bearing capacity.
9. the double rank sliding friction dampers of brace type according to claim 1, it is characterised in that: the high-strength gasket (6)
Internal diameter be greater than the frictional high-strength bolts (4) outer diameter；Outer diameter is not less than the butterfly spring (5) outer diameter.
10. the double rank sliding friction dampers of brace type according to claim 1, it is characterised in that: the first-order slip-flow section
Frictional high-strength bolts (4), channel steel beam section (3) bearing capacity keep elastic stage under damper ultimate load.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822108358.2U CN209429304U (en) | 2018-12-17 | 2018-12-17 | A kind of double rank sliding friction dampers of brace type |
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| CN201822108358.2U CN209429304U (en) | 2018-12-17 | 2018-12-17 | A kind of double rank sliding friction dampers of brace type |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111305376A (en) * | 2020-03-03 | 2020-06-19 | 潮峰钢构集团有限公司 | Steel structure-based rapid assembly type building assembly and intelligent assembly method thereof |
| CN113175417A (en) * | 2021-04-15 | 2021-07-27 | 重庆大学 | Wind turbine generator system lattice type tower capable of recovering energy consumption and enhancing energy consumption capacity |
| CN113175260A (en) * | 2021-05-12 | 2021-07-27 | 镇江知名建设工程有限公司 | Support type staged friction damper |
| CN114232794A (en) * | 2021-12-10 | 2022-03-25 | 北京交通大学 | Self-resetting support assembly type friction connection node and performance design method thereof |
| CN114961007A (en) * | 2022-04-25 | 2022-08-30 | 上海史狄尔建筑减震科技有限公司 | Multi-order sliding friction type damper and connecting structure thereof |
| CN115627688A (en) * | 2022-10-17 | 2023-01-20 | 中交公路长大桥建设国家工程研究中心有限公司 | Intelligent monitoring type bridge friction damper |
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2018
- 2018-12-17 CN CN201822108358.2U patent/CN209429304U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111305376A (en) * | 2020-03-03 | 2020-06-19 | 潮峰钢构集团有限公司 | Steel structure-based rapid assembly type building assembly and intelligent assembly method thereof |
| CN111305376B (en) * | 2020-03-03 | 2021-04-20 | 潮峰钢构集团有限公司 | Steel structure-based rapid assembly type building assembly and intelligent assembly method thereof |
| CN113175417A (en) * | 2021-04-15 | 2021-07-27 | 重庆大学 | Wind turbine generator system lattice type tower capable of recovering energy consumption and enhancing energy consumption capacity |
| CN113175417B (en) * | 2021-04-15 | 2023-03-21 | 重庆大学 | Wind turbine generator system lattice type tower frame capable of recovering energy consumption capability and enhancing energy consumption capability |
| CN113175260A (en) * | 2021-05-12 | 2021-07-27 | 镇江知名建设工程有限公司 | Support type staged friction damper |
| CN114232794A (en) * | 2021-12-10 | 2022-03-25 | 北京交通大学 | Self-resetting support assembly type friction connection node and performance design method thereof |
| CN114961007A (en) * | 2022-04-25 | 2022-08-30 | 上海史狄尔建筑减震科技有限公司 | Multi-order sliding friction type damper and connecting structure thereof |
| CN115627688A (en) * | 2022-10-17 | 2023-01-20 | 中交公路长大桥建设国家工程研究中心有限公司 | Intelligent monitoring type bridge friction damper |
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