CN203846635U - Two-stage mixed energy dissipation and shock absorption device - Google Patents

Two-stage mixed energy dissipation and shock absorption device Download PDF

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Publication number
CN203846635U
CN203846635U CN201420241292.3U CN201420241292U CN203846635U CN 203846635 U CN203846635 U CN 203846635U CN 201420241292 U CN201420241292 U CN 201420241292U CN 203846635 U CN203846635 U CN 203846635U
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China
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steel plate
edge
wing
metal
viscous
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Expired - Fee Related
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CN201420241292.3U
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Chinese (zh)
Inventor
周颖
龚顺明
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Tongji University
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Tongji University
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Abstract

The utility model discloses a two-stage mixed energy dissipation and shock absorption device. The device comprises an upper steel plate, a lower steel plate, flange steel plates, metal dampers, an occlusion part and a viscoelastic material, wherein one of the two metal dampers with the positions staggered in the vertical direction is located between the upper steel plate and one flange steel plate, the other one is located between the other flange steel plate and the lower steel plate, the two metal dampers are connected through the occlusion part, and the space between the flange steel plates, the upper steel plate and the lower steel plate is filled with the viscoelastic material. In work of the first stage, under wind loads and small shock, the relative displacement between the upper steel plate and the lower steel plate is smaller than the gap in the occlusion part, the metal dampers can not be driven to work, shearing deformation happens to the viscoelastic material so that energy dissipation starts, the elasticity of the metal dampers is kept, the device is mainly used for providing damping, and structural acceleration and displacement response are effectively reduced. In work of the second stage, under medium shock and large shock, the relative displacement between the upper steel plate and the lower steel plate is larger than the gap in the occlusion part, the metal dampers and the viscoelastic material are driven to work together, the rigidity and the damping force of the device are obviously improved, and displacement response under medium shock and large shock can be effectively reduced.

Description

Two stage mixed type energy-consuming shock absorbers
Technical field
The utility model relates to two stage mixed type energy-consuming shock absorbers, belongs to building structure energy-dissipating and shock-absorbing field.
Background technology
Conventional energy-consuming shock absorber is divided into velocity correlation type and the large class of displacement relationship type two at present.Dissimilar energy-consuming shock absorber has different characteristics and applicable stage and scope.Velocity correlation type damper (viscous damping device, viscoelastic damper etc.) is to provide damping as main, once start power consumption because it has relative displacement, therefore be suitable for resisting wind load and little shake effect, and it does not provide rigidity substantially, can not cause the increase of structure acceleration responsive, the damping providing can effectively reduce the every response of structure, ensures that structure is intact and meets comfort level requirement (" high rule (JGJ 3-2010) " 3.7.6 and 3.7.7 propose structure comfort level and require taking structure acceleration as index); Displacement relationship type damper (metal damper, frcition damper etc.) need to reach metal yield power or starting friction power just starts power consumption; therefore be suitable for shake and large shake effect in opposing; rigidity when providing damping, it is provided; can significantly reduce structure in displacement response under large shake; prevent structural collapse, the protection people security of the lives and property.
China carries out seismic design according to the method for designing in the target of setting up defences of " three levels ", " two stages " to building structure.So-called " three levels " i.e. " no damage in small earthquake, middle shake can be repaiied, no collapsing with strong earthquake ".So-called " two stages ", i.e. the first stage, carry out structure and element bearing capacity checking computations and structural elasticity deformation analysis under little shake effect, each class formation is taked to seismic measures by regulation and stipulation; Second stage, carries out the elastic-plastic deformation checking computations under large shake.Therefore in the time using energy-consuming shock absorber, use the very difficult implementation structure of damper of single energy consume mechanism to be issued to good state in different phase (wind load, little shake, middle shake and shake greatly), can attend to one thing and lose sight of another unavoidably, be difficult to take into account.
Summary of the invention
The two stage mixed type energy-consuming shock absorbers that the utility model proposes, its mechanism is the optimization that uses stage by stage different energy-dissipating and shock-absorbing mechanism implementation structure wind resistances and anti-seismic performance.Only viscous-elastic material power consumption under wind load and little shake, because viscous-elastic material starts power consumption under micro-strain, and to provide damping as main, can effectively reduce displacement and the acceleration responsive of wind induced structural vibration and earthquake, make structure meet the target of setting up defences of " no damage in small earthquake ", and meet the structure comfort level requirement of regulation and stipulation; Under middle shake and large shake, metal damper and viscous-elastic material co-operation, significantly improve the damping force of device; and provide larger rigidity; displacement structure response significantly reduces, and makes structure meet the target of setting up defences of " middle shake can be repaiied, no collapsing with strong earthquake ", protection people safety of life and property.
The utility model is two stage mixed type energy-consuming shock absorbers, comprise top steel plate 1, the first edge of a wing steel plate 2, metal damper 3, clamping device 4, viscous-elastic material 5, bolt hole 6, bottom steel plate 7 and the second edge of a wing steel plate 8, the first edge of a wing steel plate 2 and the second edge of a wing steel plate 8 lay respectively between top steel plate 1 and bottom steel plate 7, the first edge of a wing steel plate 2 is positioned on the second edge of a wing steel plate 8, and the first edge of a wing steel plate 2 and the second edge of a wing steel plate 8 dislocation are arranged, metal damper 3 has two, a metal damper 3 is between top steel plate 1 and the second edge of a wing steel plate 8, another part metal damper 3 is between the first edge of a wing steel plate 2 and bottom steel plate 7, 3 changing of the relative positions of two metal dampers are arranged, every metal damper 3 one sides are all connected with clamping device 4, the structure of two clamping devices 4 matches, two metal dampers 3 are connected by clamping device 4, between top steel plate 1 bottom and the first edge of a wing steel plate 2 tops, be filled with viscous-elastic material 5, between the second edge of a wing steel plate 8 and bottom steel plate 7, fill viscous-elastic material 5.
This device can pass through the arranged in form such as herringbone bridging, interlayer post or wall formula in structure relative floor displacement compared with large part, its duty was divided into for two stages.First stage, under wind load and little shake, because structure relative storey displacement is less, between upper lower steel plate, relative displacement is less than the gap in clamping device, can not drive metal damper work, and now viscous-elastic material generation shear strain starts power consumption, metal damper keeps elasticity, device, to provide damping as main, effectively reduces structure acceleration and displacement response, ensures that structure is intact and meets comfort level requirement; Second stage; under middle shake and large shake; between upper lower steel plate, relative displacement is greater than the gap in clamping device; drive metal damper to start to work together with viscous-elastic material; rigidity and the damping force of device are significantly improved; can effectively reduce the displacement response under middle shake and large shake, prevent structural collapse, protection people safety of life and property.
In the utility model, metal damper 3 is made up of mild steel or other low-yield metal or alloy, and viscous-elastic material 5 is the viscous-elastic material of high-damping rubber or similar tool highly energy-consuming characteristic, and clamping device 4 and other steel plates 1-2 are made up of common iron.
In the utility model, under wind load and little shake, between top steel plate 1 and bottom steel plate 8, relative displacement is less than the gap in clamping device 4, metal damper 3 do not work and keep elasticity, viscous-elastic material 5 that shear strain occurs and start power consumption.Under middle shake and large shake, between upper lower steel plate 1, relative displacement is greater than the gap in clamping device 4, drives metal damper 3 to start to work together with viscous-elastic material 5.
In the utility model, the structural form of the structural form of the quantity of viscous-elastic material layer 5 and size, metal damper 3 and size, clamping device 4, mechanical snap form and gap flexible design as required.
In the utility model, the interlock form of described two clamping devices 4 is the interlock of cross pointed tooth,
The utlity model has following remarkable advantage:
(1) two different energy consume mechanism of stage makes structure have good wind resistance and anti-seismic performance: the first stage, under wind load and little shake, only viscous-elastic material power consumption provides damping, ensures that structure is intact and meets comfort level requirement; Second stage, under middle shake and large shake, metal damper is worked together with viscous-elastic material, has significantly improved rigidity and the damping force of device, prevents structural collapse;
(2) the utility model starts power consumption under micro-displacement, and viscous-elastic material and metal damper are in state in parallel, and under certain displacement, both power consumptions stack, can play good energy-dissipating and shock-absorbing effect;
(3) structural form of the structural form of the quantity of viscous-elastic material layer and size, metal damper and size, clamping device, mechanical snap form and gap flexible design as required;
(4) this device uses bolt to be connected with agent structure, convenient construction and replacing;
(5) the utility model concept novelty is clear, and Structural Tectonics is simple, and material therefor is with low cost, and construction and replacing are convenient, respond well.
Brief description of the drawings
Fig. 1 is the elevation of two stage of the utility model mixed type energy-consuming shock absorber;
Fig. 2 is the stereogram of two stage of the utility model mixed type energy-consuming shock absorber;
Number in the figure: 1 is that top steel plate, 2 is that the first edge of a wing steel plate, 3 is that metal damper, 4 is that clamping device, 5 is that viscous-elastic material, 6 is that bolt hole, 7 is that bottom steel plate, 8 is the second edge of a wing steel plate.
Detailed description of the invention
Further illustrate by reference to the accompanying drawings the utility model below by embodiment.
Embodiment 1:
As shown in Figure 1 and 2, the utility model is two stage mixed type energy-consuming shock absorbers, comprises top steel plate 1, bottom steel plate 7, the first edge of a wing steel plate 2, the second edge of a wing steel plate 8, metal damper 3, clamping device 4 and viscous-elastic material 5, bolt hole 6, bottom steel plate 7, the second edge of a wing steel plate 8.Two metal dampers 3 of the upper-lower position changing of the relative positions, metal damper 3 adopts low-yield steel, one between top steel plate 1 and the second edge of a wing steel plate 8, one between the first edge of a wing steel plate 2 and bottom steel plate 1, between two metal dampers 3, connect by clamping device 4, interlock form is the interlock of cross pointed tooth, and clamping device intermediate gap and snap-in force meet design requirement.Between the first edge of a wing steel plate 2 and top steel plate 1 and between the second edge of a wing steel plate 8 and bottom steel plate 7, all filling viscous-elastic material 5.The upper lower steel plate of this device leaves bolt hole 6, can pass through the arranged in form such as herringbone bridging, interlayer post or wall formula in structure relative floor displacement compared with large part.
Be more than representative instance of the present utility model, enforcement of the present utility model is not limited to this.

Claims (5)

1. a stage mixed type energy-consuming shock absorber, comprise top steel plate (1), the first edge of a wing steel plate (2), metal damper (3), clamping device (4), viscous-elastic material (5), bolt hole (6), bottom steel plate (7) and the second edge of a wing steel plate (8), it is characterized in that: the first edge of a wing steel plate (2) and the second edge of a wing steel plate (8) lay respectively between top steel plate (1) and bottom steel plate (7), the first edge of a wing steel plate (2) is positioned on the second edge of a wing steel plate (8), and the first edge of a wing steel plate (2) and the dislocation of the second edge of a wing steel plate (8) are arranged, metal damper (3) has two, a metal damper (3) is positioned between top steel plate (1) and the second edge of a wing steel plate (8), another part metal damper (3) is positioned between the first edge of a wing steel plate (2) and bottom steel plate (7), two metal dampers (3) changing of the relative positions is arranged, every metal damper (3) one sides are all connected with clamping device (4), the structure of two clamping devices (4) matches, two metal dampers (3) are connected by clamping device (4), between top steel plate (1) bottom and the first edge of a wing steel plate (2) top, be filled with viscous-elastic material (5), between the second edge of a wing steel plate (8) and bottom steel plate (7), fill viscous-elastic material (5).
2. two stage mixed type energy-consuming shock absorbers according to claim 1, is characterized in that: metal damper (3) is made up of mild steel or low-yield metal or alloy.
3. two stage mixed type energy-consuming shock absorbers according to claim 1, is characterized in that: viscous-elastic material (5) is the viscous-elastic material of high-damping rubber or tool highly energy-consuming characteristic.
4. two stage mixed type energy-consuming shock absorbers according to claim 1, is characterized in that: the interlock form of described two clamping devices (4) is the interlock of cross pointed tooth.
5. two stage mixed type energy-consuming shock absorbers according to claim 1, is characterized in that: described energy-consuming shock absorber by herringbone bridging, interlayer post or wall formula arranged in form in structure relative floor displacement compared with large part.
CN201420241292.3U 2014-05-13 2014-05-13 Two-stage mixed energy dissipation and shock absorption device Expired - Fee Related CN203846635U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103993677A (en) * 2014-05-13 2014-08-20 同济大学 Two-stage mixed type energy dissipation and shock absorption device
CN104631641A (en) * 2014-12-18 2015-05-20 东南大学 Yield-adjustable X-brace energy dissipation device
CN106013493A (en) * 2016-07-01 2016-10-12 上海赛弗工程减震技术有限公司 Multi-stage yield coupling beam type damper for structural seismic resistance
CN106436951A (en) * 2016-10-18 2017-02-22 中国建筑第八工程局有限公司 Snap-in two-stage friction energy dissipation damper
CN111173155A (en) * 2020-01-07 2020-05-19 海南大学 Shearing-bending parallel connection type graded energy dissipation damper

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103993677A (en) * 2014-05-13 2014-08-20 同济大学 Two-stage mixed type energy dissipation and shock absorption device
CN103993677B (en) * 2014-05-13 2016-04-20 同济大学 Two benches mixed type energy-consuming shock absorber
CN104631641A (en) * 2014-12-18 2015-05-20 东南大学 Yield-adjustable X-brace energy dissipation device
CN106013493A (en) * 2016-07-01 2016-10-12 上海赛弗工程减震技术有限公司 Multi-stage yield coupling beam type damper for structural seismic resistance
CN106436951A (en) * 2016-10-18 2017-02-22 中国建筑第八工程局有限公司 Snap-in two-stage friction energy dissipation damper
CN106436951B (en) * 2016-10-18 2018-08-31 中国建筑第八工程局有限公司 Biting connecions two benches friction energy-dissipating damper
CN111173155A (en) * 2020-01-07 2020-05-19 海南大学 Shearing-bending parallel connection type graded energy dissipation damper

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20140924

Termination date: 20160513