CN105604204B - The seismic energy dissipation structure sinker envelop optimization method of effective damping ratio is added based on target - Google Patents
The seismic energy dissipation structure sinker envelop optimization method of effective damping ratio is added based on target Download PDFInfo
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- E—FIXED CONSTRUCTIONS
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- 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
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Abstract
The invention discloses a kind of seismic energy dissipation structure sinker envelop optimization methods for adding effective damping ratio based on target, select the seismic wave for agent structure elasto-plastic time history analysis；Set the seismic energy dissipation structure performance objective when effect of agent structure rarely occurred earthquake and requirement；Calculate the practical additional effective damping ratio ξ of target of agent structureaim；It primarily determines sinker type, position, form and quantity, under the action of every seismic wave, the elasto-plastic time history analysis of rarely occurred earthquake is carried out to seismic energy dissipation structure, the reality for calculating sinker adds effective damping ratio ξa, compare ξaAnd ξaim, until being calculated according to natural wave：0.55ξaim≤ξa≤1.1×0.55ξaim；It is calculated according to artificial wave：0.8ξaim≤ξa≤1.1×0.8ξaim.The present invention realizes the reasonability that sinker is selected and arranged in structure with energy dissipation devices, and sinker is made to be in efficiency operation state, realizes the technical and economic index that sinker designs in structure with energy dissipation devices.
Description
Technical field
The present invention relates to the structure with energy dissipation devices and analytical technology in building structure technology field, more particularly to one
Kind adds the seismic energy dissipation structure sinker envelop optimization method of effective damping ratio based on target.
Background technology
Mainly there is damage come earthquake energy by structure and component in earthquake in the antidetonation of conventional building construction, and
Structure and component it is badly damaged be exactly seismic energy conversion or consumption process.In recent years, it as China's earthquake takes place frequently, leads
Building structure subject to severe risks of damage is caused, people's life and property safety are endangered.Due at present to the machine of structure " hard anti-" earthquake
System is difficult to reach effective control requirement, and therefore mode-energy-dissipating and shock-absorbing the technology of " soft anti-" earthquake is gradually wide in building structure
General application, it has great significance to complicated building structure and lifeline engineering.
Energy-dissipating and shock-absorbing technology be it is a kind of in building structure be arranged sinker come the passive control technology for the seismic energy that dissipates.
Seismic energy dissipation structure includes agent structure and energy dissipation component, and energy dissipation component connects sinker by sinker with for agent structure
Component forms.Sinker is deformed using elastoplasticity hysteresis by internal material or the friction between component or glutinous (bullet) property is stagnant
Deformation is returned to dissipate or absorb seismic energy.In brief, energy-dissipating and shock-absorbing technology is exactly at certain positions of major structure of construction
Sinker is set, dissipated by its deformation or absorbs the energy of Seismic input structure, to reduce the influence to agent structure, from
And protect agent structure.Common sinker has displacement relationship type sinker, velocity correlation type sinker and compound sinker
Deng.
The Performance Design of seismic energy dissipation structure is for overall structure, partial structurtes, energy dissipation component, key position, again
The corresponding performance objective of the settings such as component, secondary member is wanted, seismic energy dissipation structure is analyzed according to the performance objective of setting
Design, and key is reasonably to select and arrange sinker in structure with energy dissipation devices, plays energy dissipating to greatest extent
The energy dissipation behavior of device, the performance indicator for weighing sinker energy dissipation capacity are exactly its additional effective damping ratio.The target of sinker is attached
It is the energy-dissipating property target of sinker to add effective damping ratio, and the type of sinker selects quantity, arrangement form and position
Sinker entirety energy dissipation behavior will be influenced, and then influences the realization of its performance objective.
In the Performance Design of seismic energy dissipation structure, the selection of sinker and arrangement can meet target and add effectively substantially
The requirement of damping ratio, but often there is energy dissipation component type and unreasonable, quantity is selected not conform to using excessive, arrangement form and position
The defect of reason exchanges its work quality for increase the quantity of sinker, causes sinker in seismic energy dissipation structure in low
The working condition of efficiency, this just needs to optimize sinker, that is, selects rational sinker type, determines its number
Amount, arrangement form and position, to realize the technology and economic rationality of sinker anti-seismic performance target.
Currently, the performance-based optimization design of existing seismic energy dissipation structure is using the energy dissipating based on displacement performance target
Device optimum design method, it is substantially using the relative storey displacement of each floor of major structure of construction or story drift as performance mesh
Mark sets a variety of sinker arrangements to optimize control to sinker, so that agent structure is met simultaneously Step wise approximation small
The displacement performance targets at different levels of shake, middle shake and big shake setting, therefrom determine a kind of arrangement of sinker.
However, the performance-based optimization design of this seismic energy dissipation structure has the following defects：
(1) it is to control seismic energy dissipation structure from the displacement macroparameter index of major structure of construction, substantive purpose
Deformation, the optimization of sinker is only merely the position for adjusting sinker, is seldom related to even without the number to sinker
It is optimized in terms of amount and arrangement form, causes sinker in seismic energy dissipation structure in inefficient working condition, although
The technical index that sinker designs in structure with energy dissipation devices can be basically reached, but cannot be satisfied economic index.
(2) its substantive purpose is to control the deformation of seismic energy dissipation structure, and therefore, this optimization method is only limited to layer
The multilayer structure of concept, and it is not particularly suited for the large public building without absolute layer concept, such as large-scale stadium, machine
Field, station etc., so being not applied for all construction styles.
(3) it has ignored seismic energy dissipation structure its knot in geological process not from the energy dissipation behavior of sinker itself
Structure reaction variation be due to sinker dissipation seismic energy provides additional effective damping ratio, and only be based on structure
Displacement parameter carries out the optimization of sinker, so so that seismic energy dissipation structure anti-seismic performance object technology and economic indicator are realized
Be not enough, also fail to embody sinker optimization substantive characteristics, cause the optimization efficiency of sinker low, and effect of optimization is not
Obviously.
Invention content
The purpose of the present invention is to provide a kind of sinkers to select with connection and reasonable arrangement, reduction cost, suitable for having
The multilayer of building structure layer concept feature, can realize energy dissipating in structure with energy dissipation devices at executive information systems form
The technical and economic index of device design, the energy dissipating that effective damping ratio is added based on target for improving sinker optimization efficiency are subtracted
Structure sinker envelop optimization method is shaken, the foundation designed sinker in this, as analysis designer.
The purpose of the present invention is realized by the following technical solutions：A kind of energy dissipating adding effective damping ratio based on target
Shock-damping structure sinker envelop optimization method, specifically includes following steps：
(1) the seismic wave for agent structure elasto-plastic time history analysis is selected；
(2) the seismic energy dissipation structure performance objective when effect of setting agent structure rarely occurred earthquake and requirement, not to agent structure
Sinker is set, under the action of i-th seismic wave, wherein i=1,2,3 ..., n, n is the quantity of seismic wave, to main body knot
Superposition adds the elasto-plastic time history analysis that effective damping ratio carries out rarely occurred earthquake to structure repeatedly, up to the additional effective damping ratio of superposition
Agent structure afterwards disclosure satisfy that seismic energy dissipation structure performance objective and requirement, the superposition are added in this ground seismic wave function
Effective damping ratio is the additional effective damping ratio ξ of target corresponding to i-th seismic waveaim(i)；
(3) target when to every ground seismic wave function adds effective damping ratio ξaim(i)It averages, obtains the mesh of agent structure
The practical additional effective damping ratio ξ of markaim：
In formula：N is the quantity of seismic wave；
(4) primarily determine type, position, form and the quantity of sinker, and sinker is arranged in agent structure
Form seismic energy dissipation structure；
(5) under the action of every seismic wave, the elasto-plastic time history analysis of rarely occurred earthquake is carried out to seismic energy dissipation structure：
1. if seismic energy dissipation structure disclosure satisfy that seismic energy dissipation structure performance objective in i-th ground seismic wave function and want
It asks, is transferred to step (6)；
2. if seismic energy dissipation structure cannot meet seismic energy dissipation structure performance objective in i-th ground seismic wave function and want
It asks, adjustment sinker type, position, form and quantity, until seismic energy dissipation structure can in this ground seismic wave function
Meet seismic energy dissipation structure performance objective and requirement, is transferred to step (6)；
(6) the additional effective damping ratio ξ of sinker when i-th ground seismic wave function of calculatingE(i)：
ξE(i)=∑ max (Wcj(i))/[4π·max(Ws(i))] formula is 2.
In formula：ξE(i)For i-th ground seismic wave function when sinker additional effective damping ratio；Wcj(i)For j-th of energy dissipating portion
Part structure in i-th ground seismic wave function is expected relative storey displacement Δ uj(i)One week energy consumed of lower reciprocation cycle, takes maximum
Hysteretic loop；Ws(i)The total strain energy being expected in i-th ground seismic wave function for seismic energy dissipation structure under displacement；max(Ws(i))
The maximum total strain energy being expected in i-th ground seismic wave function for seismic energy dissipation structure under displacement；
(7) the additional effective damping ratio ξ of sinker when to every ground seismic wave functionE(i)It averages, obtains the reality of sinker
Border adds effective damping ratio ξa：
In formula：N is the quantity of seismic wave；
(8) the reality for comparing sinker adds effective damping ratio ξaWith the practical additional effective damping ratio of the target of agent structure
ξaim：
If 1. calculating the ξ of gained according to natural wavea0.55 ξ of ＜aim；If calculating the ξ of gained according to artificial wavea0.8 ξ of ＜aim,
It is transferred to step (9)；
If 2. calculating the ξ of gained according to natural wavea1.1 × 0.55 ξ of ＞aim；If calculating the ξ of gained according to artificial wavea＞ 1.1
×0.8ξaim, it is transferred to step (10)；
If 3. being calculated according to natural wave：0.55ξaim≤ξa≤1.1×0.55ξaim；It is calculated according to artificial wave：
0.8ξaim≤ξa≤1.1×0.8ξaim, it is transferred to step (11)；
(9) rearrange sinker and increase the quantity of sinker, repeat step (5)~(8), until according to natural wave calculate
It obtains：0.55ξaim≤ξa≤1.1×0.55ξaim, it is calculated according to artificial wave：0.8ξaim≤ξa≤1.1×0.8ξaim, it is transferred to
Step is (11)；
(10) the position of adjustment sinker and reduce the quantity of sinker, repeat step (5)~(8), until according to natural wave meter
It obtains：0.55ξaim≤ξa≤1.1×0.55ξaim, it is calculated according to artificial wave：0.8ξaim≤ξa≤1.1×0.8ξaim, turn
Enter step (11)；
(11) the optimization of sinker in seismic energy dissipation structure performance design is completed.
The present invention can realize the reasonability that sinker is selected and arranged in structure with energy dissipation devices, to be set as analysis
The foundation that meter personnel design sinker, and the present invention from the angle of dissipation seismic energy to structure with energy dissipation devices
In sinker carry out reasonably optimizing design, suitable for having the characteristics that the multilayer of building structure layer concept, high level and Super High are built
Build form；In addition, the present invention is merely not only to adjust the position of sinker to the optimization of sinker, but also to sinker
Quantity and arrangement form are also optimized, and sinker can be made to be in efficient working condition, energy in seismic energy dissipation structure
The technical and economic index that sinker designs in structure with energy dissipation devices is enough realized, therefore, it is possible to realize sinker
Safe efficient, economic reasonable Arrangement.
Seismic energy dissipation structure performance objective of the present invention and requirement exist《Seismic design provision in building code》GB50011-
2010 (hereinafter referred to as《Anti- rule》) and《Build energy-dissipating and shock-absorbing technical regulation》JGJ297-2013 is (hereinafter referred to as《Regulation》) in have
Illustrate, each seismic energy dissipation structure damping performance target is different, there is different requirements for different building structure, specific to advise
It is fixed to be referred in the design process according to designer《Anti- rule》With《Regulation》Depending on specific, and pass through by expert's joint examination.
The present invention the step (4) in, the form of sinker refers to the form of support, such as chevron shaped arrangement, monocline support
Arrangement, V-type arrangement etc..Primarily determine that type, position, form and the quantity of sinker are bases《Anti- rule》And《Regulation》
Arrangement principle be arranged, such as at maximum displacement, consider that rigidity is uniform, tentatively arranged；And according to agent structure
Each floor relative storey displacement and storey stiffness come primarily determine sinker quantity and position be also on one side.
Seismic wave of the present invention comments unit to provide by pacifying, it is documented in peace Commentary Report announcement, the earthquake in peace Commentary Report is accused
Each moment point of wave, peak value, spectral characteristic, Ground motion duration etc. are on the books.
As one embodiment of the present invention, the step (6) in, disregard torsion effect, seismic energy dissipation structure is
The maximum total strain energy max (W being expected when i ground seismic wave function under displacements(i)) calculated according to following formula：
max(Ws(i))=(1/2) ∑ max (Fk(i))·max(uk(i)) formula is 4.
In formula：max(Fk(i)) be particle k standard values in the horizontal earthquake action of i-th seismic wave maximum value, max
(uk(i)) be particle k standard values in the horizontal earthquake action of i-th seismic wave displacement maximum value.
As the present invention a kind of preferred embodiment, according to《Anti- rule》With《Regulation》Choose seismic wave, the seismic wave
At least seven, wherein the quantity of natural wave is greater than or equal to the 2/3 of seismic wave sum.
Sinker of the present invention uses displacement relationship type sinker, velocity correlation type sinker or compound energy dissipating
Device.
Compared with prior art, the present invention has following significant effect：
(1) the present invention can realize that sinker in structure with energy dissipation devices is selected and the reasonability of arrangement, using as analysis
The foundation that designer designs sinker.
(2) the present invention carries out the sinker in structure with energy dissipation devices from the angle of dissipation seismic energy reasonable
Optimization design, multilayer, the executive information systems form for being suitable for having the characteristics that building structure layer concept.
(3) the present invention is merely not only the position of adjustment sinker to the optimization of sinker, but also to the number of sinker
Amount and arrangement form are also optimized, and sinker can be made to be in efficient working condition in seismic energy dissipation structure, can
The technical and economic index that sinker designs in structure with energy dissipation devices is realized, therefore, it is possible to realize the peace of sinker
Entirely, reasonable Arrangement efficiently, economic.
Specific implementation mode
A kind of seismic energy dissipation structure sinker envelop optimization method for adding effective damping ratio based on target of the present invention, specifically
Include the following steps：
(1) basis《Seismic design provision in building code》GB50011-2010 and《Build energy-dissipating and shock-absorbing technical regulation》JGJ297-
2013 select the seismic wave for agent structure elasto-plastic time history analysis, and seismic wave includes natural wave and artificial wave, day therein
Right wave number amount is greater than or equal to the 2/3 of seismic wave sum, and seismic wave comments unit to provide by pacifying, it is documented in peace Commentary Report announcement,
It is on the books to pacify each moment point of seismic wave, peak value, spectral characteristic, Ground motion duration etc. during Commentary Report is accused；
(2) the seismic energy dissipation structure performance objective when effect of setting agent structure rarely occurred earthquake and requirement, not to agent structure
Sinker is set, under the action of i-th seismic wave, wherein i=1,2,3 ..., n, n is the quantity of seismic wave, in this implementation
In example, n=7, to agent structure, superposition adds the elasto-plastic time history analysis that effective damping ratio carries out rarely occurred earthquake, elastoplasticity repeatedly
Time-history analysis is the prior art, and additional effective damping ratio exists《Anti- rule》With《Specification》In provided, until superposition is additional
Agent structure after effective damping ratio disclosure satisfy that seismic energy dissipation structure performance objective and requirement in this ground seismic wave function, should
The additional effective damping ratio of superposition is the additional effective damping ratio ξ of target corresponding to i-th seismic waveaim(i).The process is：
For example to one additional effective damping ratio 5% of agent structure superposition, carry out the elasto-plastic time history analysis of rarely occurred earthquake, such as energy dissipating
Shock-damping structure performance objective and require one of them be " column is unyielding ", and by elasto-plastic time history analysis obtain the result is that
" column is flexible " illustrates that the effect reached is more preferable, so under the premise of meeting seismic energy dissipation structure performance objective and requiring at this time
And cost can be improved in this way, and such effect need not be reached, so reduce on the basis of additional effective damping ratio 5%,
Another additional effective damping ratio 4.5% to agent structure superposition again, carries out the elasto-plastic time history analysis of rarely occurred earthquake, if meeting
Seismic energy dissipation structure performance objective and requirement, then, 4.5% is to add effective damping corresponding to the target of this seismic wave
Compare ξaim(i), it is the additional effective damping ratio of seismic energy dissipation structure goal-setting under i-th ground seismic wave function；In every earthquake
Under the action of wave, determine that the target corresponding to this seismic wave adds effective damping ratio ξ as procedure described aboveaim(i)；
(3) target when to every ground seismic wave function adds effective damping ratio ξaim(i)It averages, obtains the mesh of agent structure
The practical additional effective damping ratio ξ of markaim：
In formula：N is the quantity of seismic wave, n=7；
(4) basis《Anti- rule》And《Regulation》In arrangement principle be arranged, such as at maximum displacement, consider that rigidity is equal
It is even tentatively to be arranged, primarily determine that position can be used in type, position, form and the quantity of sinker, the type of sinker
Relationship type sinker, velocity correlation type sinker or compound sinker are moved, depending on specific actual conditions；And sinker
Position refer to position of the sinker in agent structure, the form of sinker refers to the form of support, such as chevron shaped
Arrangement, monocline support arrangement, V-type arrangement etc., primarily determine that type, position, form and the quantity of sinker are existing above
There is technology, sinker is arranged in agent structure and forms seismic energy dissipation structure；
(5) under the action of every seismic wave, the elasto-plastic time history analysis of rarely occurred earthquake is carried out to seismic energy dissipation structure：
1. if seismic energy dissipation structure disclosure satisfy that seismic energy dissipation structure performance objective in i-th ground seismic wave function and want
It asks, is transferred to step (6)；
2. if seismic energy dissipation structure cannot meet seismic energy dissipation structure performance objective in i-th ground seismic wave function and want
It asks, adjustment sinker type, position, form and quantity, until seismic energy dissipation structure can in this ground seismic wave function
Meet seismic energy dissipation structure performance objective and requirement, is transferred to step (6)；
(6) the additional effective damping ratio ξ of sinker when i-th ground seismic wave function of calculatingE(i)：
ξE(i)=∑ max (Wcj(i))/[4π·max(Ws(i))] formula is 2.
In formula：ξE(i)For i-th ground seismic wave function when sinker additional effective damping ratio；Wcj(i)For j-th of energy dissipating portion
Part structure in i-th ground seismic wave function is expected relative storey displacement Δ uj(i)One week energy consumed of lower reciprocation cycle, takes maximum
Hysteretic loop；Ws(i)The total strain energy being expected in i-th ground seismic wave function for seismic energy dissipation structure under displacement；max(Ws(i))
The maximum total strain energy being expected in i-th ground seismic wave function for seismic energy dissipation structure under displacement；
Disregard torsion effect, seismic energy dissipation structure is expected the maximum total strain energy under displacement in i-th ground seismic wave function
max(Ws(i)) calculated according to following formula：
max(Ws(i))=(1/2) ∑ max (Fk(i))·max(uk(i)) formula is 4.
In formula：max(Fk(i)) be particle k standard values in the horizontal earthquake action of i-th seismic wave maximum value, max
(uk(i)) be particle k correspond to i-th seismic wave horizontal earthquake action when standard value displacement maximum value.
(7) the additional effective damping ratio ξ of sinker when to every ground seismic wave functionE(i)It averages, obtains the reality of sinker
Border adds effective damping ratio ξa：
In formula：N is the quantity of seismic wave；
(8) the reality for comparing sinker adds effective damping ratio ξaWith the practical additional effective damping ratio of the target of agent structure
ξaim：
If 1. calculating the ξ of gained according to natural wavea<0.55ξaim；If calculating the ξ of gained according to artificial wavea<0.8ξaim, turn
Enter step (9)；I.e.：If calculating the ξ of gained according to natural wavea<0.55ξaim, it is transferred to step (9)；And gained is calculated according to artificial wave
ξa<0.8ξaim, it is transferred to step (9)；
If 2. calculating the ξ of gained according to natural wavea1.1 × 0.55 ξ of ＞aim；If calculating the ξ of gained according to artificial wavea＞ 1.1
×0.8ξaim, it is transferred to step (10)；I.e.：If calculating the ξ of gained according to natural wavea1.1 × 0.55 ξ of ＞aim, it is transferred to step (10)；And root
The ξ of gained is calculated according to artificial wavea1.1 × 0.8 ξ of ＞aim, it is transferred to step (10)；
If 3. being calculated according to natural wave：0.55ξaim≤ξa≤1.1×0.55ξaim；If being calculated according to artificial wave
It arrives：0.8ξaim≤ξa≤1.1×0.8ξaim, it is transferred to step (11)；
(9) rearrange sinker and increase the quantity of sinker, it refers to sinker in main body knot to rearrange sinker
Position and arrangement form in structure rearrange, repeat step (5)~(8), until be calculated according to natural wave：0.55
ξaim≤ξa≤1.1×0.55ξaim；It is calculated according to artificial wave：0.8ξaim≤ξa≤1.1×0.8ξaim, it is transferred to step (11)；
(10) adjust the position of sinker and reduce the quantity of sinker, the position for adjusting sinker refers to sinker in master
Position in body structure is adjusted, repeat step (5)~(8), until be calculated according to natural wave：0.55ξaim≤ξa≤1.1
×0.55；It is calculated according to artificial wave：0.8ξaim≤ξa≤1.1×0.8ξaim, it is transferred to step (11)；
(11) the optimization of sinker in seismic energy dissipation structure performance design is completed.
By calculating above, the arrangement of sinker meets seismic energy dissipation structure performance when agent structure rarely occurred earthquake acts on
Target and requirement, at this point, arrangement of the sinker in agent structure is safety, reasonable and economical plan.
The implementation of the present invention is not limited to this, and the above according to the invention is known using the ordinary skill of this field
Knowledge and customary means, under the premise of not departing from above-mentioned basic fundamental thought of the invention, the present invention can also make other a variety of shapes
Modification, replacement or the change of formula, all fall within rights protection scope of the present invention.
Claims (3)
1. a kind of seismic energy dissipation structure sinker envelop optimization method for being added effective damping ratio based on target, is specifically included following
Step：
(1) the seismic wave for agent structure elasto-plastic time history analysis is selected；
(2) the seismic energy dissipation structure performance objective when effect of setting agent structure rarely occurred earthquake and requirement, are not provided with agent structure
Sinker, under the action of i-th seismic wave, wherein i=1,2,3 ..., n, n is the quantity of seismic wave, anti-to agent structure
Multiple superposition adds the elasto-plastic time history analysis that effective damping ratio carries out rarely occurred earthquake, after the additional effective damping ratio of superposition
Agent structure disclosure satisfy that seismic energy dissipation structure performance objective and requirement in this ground seismic wave function, the superposition it is additional effectively
Damping ratio is the additional effective damping ratio ξ of target corresponding to i-th seismic waveaim(i)；
(3) target when to every ground seismic wave function adds effective damping ratio ξaim(i)It averages, the target for obtaining agent structure is real
Border adds effective damping ratio ξaim：
In formula：N is the quantity of seismic wave；
(4) primarily determine type, position, form and the quantity of sinker, and sinker is arranged in agent structure and is formed
Seismic energy dissipation structure；
(5) under the action of every seismic wave, the elasto-plastic time history analysis of rarely occurred earthquake is carried out to seismic energy dissipation structure：
1. if seismic energy dissipation structure disclosure satisfy that seismic energy dissipation structure performance objective and requirement in i-th ground seismic wave function, turn
Enter step (6)；
2. if seismic energy dissipation structure cannot meet seismic energy dissipation structure performance objective and requirement in i-th ground seismic wave function, adjust
Whole sinker type, position, form and quantity, until seismic energy dissipation structure disclosure satisfy that in this ground seismic wave function and disappear
(6) energy shock-damping structure performance objective and requirement, are transferred to step；
(6) the additional effective damping ratio ξ of sinker when calculating i-th ground seismic wave functionE(i)：
ξE(i)=∑ max (Wcj(i))/[4π·max(Ws(i))] formula is 2.
In formula：ξE(i)For i-th ground seismic wave function when sinker additional effective damping ratio；Wcj(i)Exist for j-th of energy dissipation component
Structure is expected relative storey displacement Δ u when i-th ground seismic wave functionj(i)One week energy consumed of lower reciprocation cycle, takes maximum hysteresis
Anchor ring accumulates；Ws(i)The total strain energy being expected in i-th ground seismic wave function for seismic energy dissipation structure under displacement；max(Ws(i)) it is to disappear
Energy shock-damping structure is expected the maximum total strain energy under displacement in i-th ground seismic wave function；
Disregard torsion effect, seismic energy dissipation structure is expected the maximum total strain energy max under displacement in i-th ground seismic wave function
(Ws(i)) calculated according to following formula：
max(Ws(i))=(1/2) ∑ max (Fk(i))·max(uk(i)) formula is 4.
In formula：max(Fk(i)) be particle k standard values in the horizontal earthquake action of i-th seismic wave maximum value, max (uk(i))
The displacement maximum value of standard value when corresponding to the horizontal earthquake action of i-th seismic wave for particle k；
(7) the additional effective damping ratio ξ of sinker when to every ground seismic wave functionE(i)It averages, the reality for obtaining sinker is attached
Add effective damping ratio ξa：
In formula：N is the quantity of seismic wave；
(8) the reality for comparing sinker adds effective damping ratio ξaWith the practical additional effective damping ratio ξ of the target of agent structureaim：
If 1. calculating the ξ of gained according to natural wavea0.55 ξ of ＜aim；If calculating the ξ of gained according to artificial wavea0.8 ξ of ＜aim, it is transferred to
Step is (9)；
If 2. calculating the ξ of gained according to natural wavea1.1 × 0.55 ξ of ＞aim；If calculating the ξ of gained according to artificial wavea＞ 1.1 ×
0.8ξaim, it is transferred to step (10)；
If 3. being calculated according to natural wave：0.55ξaim≤ξa≤1.1×0.55ξaim；If being calculated according to artificial wave：0.8
ξaim≤ξa≤1.1×0.8ξaim, it is transferred to step (11)；
(9) rearrange sinker and increase the quantity of sinker, repeat step (5)~(8), until be calculated according to natural wave：
0.55ξaim≤ξa≤1.1×0.55ξaim；It is calculated according to artificial wave：0.8ξaim≤ξa≤1.1×0.8ξaim, it is transferred to step
⑾；
(10) the position of adjustment sinker and reduce the quantity of sinker, repeat step (5)~(8), until being calculated according to natural wave
It arrives：0.55ξaim≤ξa≤1.1×0.55ξaim；It is calculated according to artificial wave：0.8ξaim≤ξa≤1.1×0.8ξaim, it is transferred to step
Suddenly (11)；
(11) the optimization of sinker in seismic energy dissipation structure performance design is completed.
2. the seismic energy dissipation structure sinker envelop optimization side according to claim 1 for adding effective damping ratio based on target
Method, it is characterised in that：The seismic wave is at least seven, wherein the quantity of natural wave is greater than or equal to the 2/3 of seismic wave sum.
3. the seismic energy dissipation structure sinker envelop optimization side according to claim 2 for adding effective damping ratio based on target
Method, it is characterised in that：The sinker uses displacement relationship type sinker, velocity correlation type sinker or compound energy dissipating
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610032673.4A CN105604204B (en) | 2016-01-18 | 2016-01-18 | The seismic energy dissipation structure sinker envelop optimization method of effective damping ratio is added based on target |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610032673.4A CN105604204B (en) | 2016-01-18 | 2016-01-18 | The seismic energy dissipation structure sinker envelop optimization method of effective damping ratio is added based on target |
Publications (2)
| Publication Number | Publication Date |
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| CN103838918A (en) * | 2014-01-28 | 2014-06-04 | 广东省建筑设计研究院 | Value obtaining method-comprehensive method of additional effective damping ratios of energy dissipaters with energy dissipation and shock absorption structures |
| CN104102779A (en) * | 2014-07-18 | 2014-10-15 | 同济大学 | Energy dissipation and shock absorption optimization design method |
| CN104405054A (en) * | 2014-10-09 | 2015-03-11 | 甘肃省建筑设计研究院 | Method for designing structure with stiction energy dissipater |
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| CN103838918A (en) * | 2014-01-28 | 2014-06-04 | 广东省建筑设计研究院 | Value obtaining method-comprehensive method of additional effective damping ratios of energy dissipaters with energy dissipation and shock absorption structures |
| CN104102779A (en) * | 2014-07-18 | 2014-10-15 | 同济大学 | Energy dissipation and shock absorption optimization design method |
| CN104405054A (en) * | 2014-10-09 | 2015-03-11 | 甘肃省建筑设计研究院 | Method for designing structure with stiction energy dissipater |
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