CN105926794B - The assembled mild steel damper optimized using stress isobar - Google Patents
The assembled mild steel damper optimized using stress isobar Download PDFInfo
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- CN105926794B CN105926794B CN201610317439.6A CN201610317439A CN105926794B CN 105926794 B CN105926794 B CN 105926794B CN 201610317439 A CN201610317439 A CN 201610317439A CN 105926794 B CN105926794 B CN 105926794B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
Abstract
The present invention relates to a kind of using the damper that deformation mechanism dissipation vibrational energy is surrendered in mild steel face, the energy-dissipating and shock-absorbing for building construction.The assembled mild steel damper using stress isobar optimization of the present invention includes mild-steel energy-consumption piece, anti-buckling clamping plate, L-type connecting plate, anchor plate, polyfluortetraethylene plate, precompressed fastening bolt, the high strong ties bolt of friction-type, caging bolt, pre-buried anchor bar, flexible packing material are formed.The assembled mild steel damper using stress isobar optimization of the present invention can be installed in the structure as the cutting element of building function, not undertake vertical load；Elastoplasticity Hysteresis Behavior dissipation wind load caused by the deformation of mild-steel energy-consumption piece or the energy of earthquake load input when by wind load either seismic loading, so as to protect the main member of structure；Mild-steel energy-consumption piece is optimized using stress isobar, and the accumulating plastic deformation of energy consumption piece is greatly lowered, strengthens its low cycle fatigue property.
Description
(1) technical field
The invention belongs to Construction Anti-earthquake technical field, is related to a kind of dissipate using surrender deformation mechanism in mild steel face and shakes
The damper of energy.
(2) background technology
Seismic activity in recent years is violent, and great infringement is caused to engineering structure, has even resulted in serious personnel
A series of earthquakes such as injures and deaths, Wenchuan, cajaput, Lushan, Ludian show that China's town building is still faced with serious earthquake and threatens.With
The issue of new edition seismic rehionalization map, 7 degree of China and region area of setting up defences above increase to the 58% of national area, 82% province
Meeting city and 57% prefecture-level city are in 7 degree and region of setting up defences above.How the antidetonation of efficient and economic enhancing building structure
Ability is one of important topic of current protection against and mitigation of earthquake disasters engineering.The newest antidetonation that energy-dissipating and shock-absorbing technology exactly grows up for this
Technological means, dissipated inputting seismic energy by the way of " defeating a force with a tenderness ", is played the effect of " fuse ", is sacrificed oneself, is protected
Full agent structure component.On the one hand structural seismic capacity is greatly enhanced, on the other hand the fast changeable after shake.
Common energy-consuming shock absorber can be divided mainly into four major classes：Viscous damper, metal damper, viscoelastic damper
And frcition damper.Metal mild steel damper is subject to the generally favor of people with its cheap, dependable performance characteristic.
Metal mild steel damper utilizes the plastic energy dissipation energy after metal material surrender.Metal mild steel damper hysteretic characteristic is steady
Fixed, low-Cycle Fatigue Characteristics are good, and damping clear mechanism, damping effect is notable, and not influenced by ambient temperature.Conventional metal is soft
Steel damper uses in-plane deformation dissipation energy, and based on detrusion, rigidity is big, and energy dissipation capacity is strong.But Wasted-energy steel plate easily occurs
Out-of-plane buckling, is difficult to control；Type of attachment for the section steel plate that consumes energy is mostly to weld, and the low week that on the one hand have impact on damper is tired
Labor performance, is on the other hand difficult to quick-replaceable after shake.Particularly, existing mild steel damper is subject to just in the corner of Wasted-energy steel plate
The control of stress initially enters surrender, and accumulating plastic deformation is very big, and it is tired that experiment shows that this is that low week occurs at first for the type damper
The stress point of labor rupture failure.
(3) content of the invention
It is contemplated that overcome the disadvantages mentioned above of conventional metals mild steel damper, it is proposed that a kind of new use iso-stress
The assembled mild steel damper of line optimization.The device utilizes mild steel in-plane bending-detrusion mechanism dissipation seismic energy, by ground
Shake energy concentrates on mild-steel energy-consumption piece, and passes through section optimal so that during coming earthquake, the equivalent stress for the piece outer ledge that consumes energy
Reach maximum at the same time, form stress isobar, improve the energy dissipation capacity of damper, and effectively reduce the peak value of accumulating plastic deformation,
So as to improve low-cycle fatigue ability.Using full articulated constuction, though damper after shake there are residual force, also can be convenient
It is removed and replaced for, so as to reach the ability that fast quick-recovery uses function.The damper can use in building structure coupling beam,
It can be used in upper and lower interlayer as wall damper.
The present invention is included using the assembled mild steel damper of stress isobar optimization：Mild-steel energy-consumption piece 1, anti-buckling clamping plate
2, L-type connecting cleat 3, anchor plate 4, polyfluortetraethylene plate 5, precompressed fastening bolt 6, the high strong ties bolt 7 of friction-type is spacing
Bolt 8, pre-buried anchor bar 9, flexible packing material 10, clamping plate gasket 11, the damper line style 12 of stress isobar optimization, screw thread
Hole 13.
Wherein anchor plate 4 is embedded in concrete connecting-beam securely with pre-buried anchor bar 9, and anchor plate 4 is provided with spiral shell
To connect L-type connecting cleat 3, mild-steel energy-consumption piece 1 is connected pit 13 by L-type connecting cleat 3 with anchor plate 4, mild steel consumption
Energy piece 1 opens bolt hole with 3 junction of L-type connecting cleat, and is connected by the high strong ties bolt 7 of friction-type, multigroup mild-steel energy-consumption
When piece 1 is in parallel, clamping plate gasket 11 should be set, L-type connecting cleat 3 opens bolt hole with 4 junction of coupling beam anchor plate, also by rubbing
The high strong ties bolt 7 of wiping type connects, and anti-buckling clamping plate 2 sets bolt hole in the vacancy of 1 boundary curve of mild-steel energy-consumption piece, passes through
Precompressed fastening bolt 6, which clamps mild-steel energy-consumption piece 1, prevents out-of-plane buckling, is placed between anti-buckling clamping plate 2 and mild-steel energy-consumption piece 1 poly-
Tetrafluoroethene plate 5 reduces frictional force caused by face pressure, and the middle part of mild-steel energy-consumption piece 1 sets caging bolt 8 to position anti-buckling clamping plate
2,1 middle part shape of mild-steel energy-consumption piece is the damper line style 12 of stress isobar optimization, and its exterior wraps up one layer of flexible filling
Material 10 prevents corrosion.
The intensity of coupling beam concrete parts is not to be exceeded in the intensity of damper, and the stiffnes s equivalent of whole coupling beam is firm into damper
Degree is connected with two section concrete coupling beam rigidity, and overall coupling beam rigidity and former concrete connecting-beam are equivalent.Under frequently occurred earthquake, mild steel
Energy consumption piece is in elastic stage, and damper provides and the equivalent initial stiffness of original reinforced concrete coupling beams.Under earthquake of setting up defences,
Damper initially enters yield situation, and mild-steel energy-consumption piece starts dissipation seismic energy by shearing lag return mechanism earthquake energy
Amount, and protect concrete component to exempt from destruction.Under rarely occurred earthquake, the larger shearing changing of the relative positions occurs for coupling beam, damper enter compared with
Big mecystasis, dissipate a large amount of seismic energies, so as to reduce integrally-built seismic response.
The present invention is applied to deform larger position, such as coupling beam or stratified deformation under geological process in engineering structure.
When between applied to two layers, connection buttress should be set, multiple damper parallel operations, connection branch can be set on connection buttress
Pier should have enough rigidity and intensity, avoid surrendering and destroying earlier than damper.
Structural damage under severe earthquake action is concentrated on damper by the invention, so that other concrete components are avoided, such as
Wall limb, is destroyed, and is finally reached lifting overall structure anti-seismic performance, control damage, is ensured quickly repair after shake, reduces warp
The purpose of Ji loss.
Beneficial effects of the present invention：
The present invention is metal product, and surface has good durability by stringent antiseptic and rustproof processing；The present invention
Simple in structure, mechanics approach is clear and definite, and dependable performance is easy for installation, easy to the quick-replaceable after shaking；The present invention is when earthquake occurs
Can be dissipated energy of the earthquake to building transmission, reduce the seismic response of agent structure；Subtract available for high-rise, super high rise structure
Shake, positive effect；The strength and stiffness flexible design of the present invention, can be arranged as required to the diverse location in engineering structure.
(4) illustrate
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the structure diagram of the embodiment of the present invention 1.
Fig. 2 is the cross-sectional view of the structure of the embodiment of the present invention 1.
Fig. 3 is the mild-steel energy-consumption piece schematic diagram of the embodiment of the present invention 1.
Fig. 4 is the anti-buckling clamping plate schematic diagram of the embodiment of the present invention 1.
Fig. 5 is the L-type connecting cleat schematic diagram of the embodiment of the present invention 1.
Fig. 6 is the anchor plate schematic diagram of the embodiment of the present invention 1.
Fig. 7 is the cross-sectional view of the structure of the embodiment of the present invention 2.
Fig. 8 is the structure diagram of the embodiment of the present invention 3.
In figure, mild-steel energy-consumption piece 1, anti-buckling clamping plate 2, L-type connecting cleat 3, anchor plate 4, polyfluortetraethylene plate 5, in advance
Compress fixing bolt 6, the high strong ties bolt 7 of friction-type, caging bolt 8, pre-buried anchor bar 9, flexible packing material 10, clamping plate pad
Piece 11, the damper line style 12 of stress isobar optimization, threaded hole 13.
(5) embodiment
Embodiment 1
Fig. 1 is the structure diagram of the present embodiment.The present embodiment is by mild-steel energy-consumption piece 1, anti-buckling clamping plate 2, L-type connection
Clamping plate 3, anchor plate 4, polyfluortetraethylene plate 5, precompressed fastening bolt 6, the high strong ties bolt 7 of friction-type, caging bolt 8, in advance
Anchor bar 9 is buried, flexible packing material 10 is formed.It is first that the polyfluortetraethylene plate 5,2 of mild-steel energy-consumption piece 1,2 is anti-during assembling
Flexing clamping plate 2 carries out positioning assembling according to bolt hole position, is fixed using caging bolt 8 and precompressed fastening bolt 6, assembling
Order is from inside to outside mild-steel energy-consumption piece 1, polyfluortetraethylene plate 5 and anti-buckling clamping plate 2, and two sides is identical.By 1 liang of mild-steel energy-consumption piece
End is connected with the high strong ties bolt 7 of friction-type of L-type connecting cleat 3.L-type connecting cleat 3 and anchor plate 4 are passed through into friction-type
High strong ties bolt 7 connects.Anchor plate 4 has enough pre-buried anchor bars 9, it is firmly connected with concrete.Group
After dress, in damper trypsin method flexibility packing material 10, optional foaming agent is filled, for protecting damper to exempt from
Corrosion.
Fig. 2 is the cross-sectional view of the structure of the present embodiment, and caging bolt 8 is located at the both sides of same mild-steel energy-consumption piece, uses spiral shell respectively
Cap progress is spacing, and the anti-buckling clamping plate 2 and polyfluortetraethylene plate 5 for preventing both sides shift in deformation process.
Fig. 3 is the mild-steel energy-consumption piece schematic diagram of the present embodiment, and both ends are opened bolt hole, are bolted at surface of position sandblasting
Reason, energy consumption section use the curve shape 12 of stress isobar optimization, and both side surface has caging bolt 8.
Fig. 4 is the anti-buckling clamping plate schematic diagram of the present embodiment, and upper and lower ends are according to the section optimal curve of mild-steel energy-consumption piece
Shape 12 sets the fastening bolt holes of relevant position, and the design position of bolt hole is considered as shape of the energy consumption piece after by Cyclic Loading
Change, makes it not influence the deformation of energy consumption piece 1.
Fig. 5 is the L-type connecting cleat schematic diagram of the present embodiment, and two vertical surfaces open bolt hole, its position of opening is with cutting
Face size should refer to the position of opening of coupling beam anchor plate 4, its surface carries out blasting treatment.
Fig. 6 is the coupling beam anchor plate schematic diagram of the present embodiment, and surface opens up two row threaded holes 13, and tapping position should be kept away
Concrete reinforcing steel and shaped steel are opened, sets pre-buried anchor bar 9 it is firmly connected with concrete, its surface is carried out at sandblasting
Reason.
Embodiment 2
Fig. 7 is the cross-sectional view of the structure of the present embodiment.Two pieces of mild-steel energy-consumption pieces 1 are in parallel, and each piece of mild-steel energy-consumption piece 1 is sandwiched in
In two pieces of polyfluortetraethylene plates 5, outermost sets two pieces of anti-buckling clamping plates 2.In L-type connecting cleat position, in order to avoid two pieces
Gap between mild-steel energy-consumption piece, should fill one piece of clamping plate gasket 11, the polytetrafluoro between its thickness and two pieces of mild-steel energy-consumption pieces 1
5 thickness of vinyl plate is identical.Other constructions are same as Example 1.
Embodiment 3
Fig. 8 is the structure diagram of the present embodiment.Damper is placed on inter-layer position, utilizes the displacement between levels
The changing of the relative positions promotes damper deformation energy consumption, and damper upper end is connected in the Vierendeel girder on upper strata, and lower end is connected buttress company with concrete
Connect, connection buttress is a part for structure, has enough strength and stiffness, avoids destroying before damper is surrendered.Damping
Device can be placed parallel on connection buttress.Other constructions are same as Example 1.
Claims (3)
1. a kind of assembled mild steel damper optimized using stress isobar, is included：Mild-steel energy-consumption piece (1), anti-buckling clamping plate
(2), L-type connecting cleat (3), anchor plate (4), polyfluortetraethylene plate (5), precompressed fastening bolt (6), the high strong ties of friction-type
Bolt (7), caging bolt (8), pre-buried anchor bar (9), flexible packing material (10), clamping plate gasket (11), stress isobar is excellent
The damper line style (12) of change, threaded hole (13), wherein, anchor plate (4) is opened with pre-buried anchor bar (9), anchor plate (4)
There is threaded hole (13) to connect L-type connecting cleat (3), mild-steel energy-consumption piece (1) passes through L-type connecting cleat (3) and anchor plate
(4) it is connected, mild-steel energy-consumption piece (1) opens bolt hole with L-type connecting cleat (3) junction, and passes through the high strong ties bolt of friction-type
(7) connect, when multigroup mild-steel energy-consumption piece (1) is in parallel, clamping plate gasket (11), L-type connecting cleat (3) and coupling beam anchor plate are set
(4) bolt hole is opened in junction, is connected also by the high strong ties bolt (7) of friction-type, anti-buckling clamping plate (2) is in mild-steel energy-consumption piece
(1) vacancy of boundary curve sets bolt hole, is clamped mild-steel energy-consumption piece (1) by precompressed fastening bolt (6), anti-buckling folder
Polyfluortetraethylene plate (5) is placed between plate (2) and mild-steel energy-consumption piece (1), caging bolt (8) is set in the middle part of mild-steel energy-consumption piece (1)
To position anti-buckling clamping plate (2), its exterior wraps up one layer of flexible packing material (10), it is characterised in that：Mild-steel energy-consumption piece
(1) middle part shape is the damper line style (12) of stress isobar optimization.
2. the assembled mild steel damper according to claim 1 optimized using stress isobar, it is characterised in that mild steel consumes
Energy piece (1) is clamped by anti-buckling clamping plate (2) and polyfluortetraethylene plate (5) and forms anti-buckling mechanism.
3. the assembled mild steel damper according to claim 1 optimized using stress isobar, it is characterised in that mild steel consumes
Energy piece (1) carries caging bolt (8), for limiting the position of anti-buckling clamping plate (2) and polyfluortetraethylene plate (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610317439.6A CN105926794B (en) | 2016-05-13 | 2016-05-13 | The assembled mild steel damper optimized using stress isobar |
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| CN201610317439.6A CN105926794B (en) | 2016-05-13 | 2016-05-13 | The assembled mild steel damper optimized using stress isobar |
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| CN105926794A CN105926794A (en) | 2016-09-07 |
| CN105926794B true CN105926794B (en) | 2018-05-01 |
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| CN112482602A (en) * | 2020-12-04 | 2021-03-12 | 上海赛弗工程减震技术有限公司 | Buckling-restrained energy-dissipation brace |
| CN113982346A (en) * | 2021-10-18 | 2022-01-28 | 东南大学 | Interface-enhanced viscoelastic damper |
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| JP3185681B2 (en) * | 1996-10-04 | 2001-07-11 | 株式会社大林組 | Boundary beam structure |
| JP4565309B2 (en) * | 2001-09-18 | 2010-10-20 | 清水建設株式会社 | Boundary beam damper |
| JP5124146B2 (en) * | 2007-01-19 | 2013-01-23 | 株式会社竹中工務店 | Seismic control building |
| CN201184000Y (en) * | 2007-11-15 | 2009-01-21 | 滕军 | Damper for limb-connecting shear force wall girder-connecting energy consumption |
| JP2011256577A (en) * | 2010-06-08 | 2011-12-22 | Shimizu Corp | Seismic control structure including viscoelastic damper |
| CN102433942B (en) * | 2011-09-26 | 2014-01-08 | 北京赛福思创科技有限公司 | Method for using modular steel hysteresis damper |
| CN203891242U (en) * | 2014-05-13 | 2014-10-22 | 同济大学 | Replaceable rigid damping connecting beam |
| CN204298978U (en) * | 2014-12-04 | 2015-04-29 | 郭小康 | Two rank power consumption steel coupling beam |
| CN206053016U (en) * | 2016-05-13 | 2017-03-29 | 中国地震局工程力学研究所 | The assembled mild steel damper optimized using stress isobar |
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