CN105781211B - A kind of construction method of steel tube tower in electric transmission line - Google Patents
A kind of construction method of steel tube tower in electric transmission line Download PDFInfo
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Abstract
The invention discloses a kind of construction method of steel tube tower in electric transmission line, including build steel tube tower in electric transmission line structural model, build steel tube tower in electric transmission line structure stochastic seismic model, steel tube tower in electric transmission line structure main member displacement and speed-power spectrum density calculate, structure steel tube tower in electric transmission line Structural Damage Model, calculate damage index, dual Reliability assessment carried out to steel tube tower in electric transmission line structural model, carries out the step such as construct.The present invention can not only make the anti-seismic performance of steel tube tower in electric transmission line structure adapt to local require, rapid evaluation is carried out to anti-seismic performance, it is often more important that Reasonable adjustment can be made in time according to assessment result, improve efficiency, it is cost-effective, greatly improve the safety of structure of steel tube tower in electric transmission line.
Description
Technical field
The present invention relates to steel tube tower in electric transmission line construction field, and in particular to a kind of construction party of steel tube tower in electric transmission line
Method.
Background technology
In correlation technique, when carrying out steel tube tower in electric transmission line structure construction, the main member of steel tube tower in electric transmission line structure
The canonical parameter in technical specification is continued to use in the parameter selection of (such as steel tube tower trunk, main line cross-arm).
By the earthquake intensity in steel tube tower in electric transmission line structure institute possession is different with Types of Earthquakes, carried out according to correlation technique
The anti-seismic performance of the steel tube tower in electric transmission line structure of design is poor to adapting to local desired flexibility, on the other hand, lacks pin
To the method for the anti-seismic performance rapid evaluation of steel tube tower in electric transmission line structure.
The content of the invention
In view of the above-mentioned problems, the present invention provides a kind of construction method of steel tube tower in electric transmission line.
The purpose of the present invention is realized using following technical scheme：
A kind of construction method of steel tube tower in electric transmission line, comprises the following steps：
(1) by CAD Primary Construction steel tube tower in electric transmission line structural model, and transmission line of electricity steel is determined
The main member of pipe tower structure model；
(2) according to local seismic fortification intensity, Aseismic Design packet and steel tube tower in electric transmission line structure property classification,
Build the stochastic seismic model of steel tube tower in electric transmission line structural model, the displacement of the corresponding main member of generation and speed
Power spectral density function；
(3) corresponding displacement power is calculated according to the power spectral density function of the displacement of the main member and speed
Spectrum density and speed-power spectrum density, integral and calculating is carried out to the displacement power spectral density and speed-power spectrum density, obtained
The square difference of displacement and velocity variance of corresponding main member；
(4) in normal temperature W0Under to the main member carry out experimental study draw its performance parameter, according to the property
The damage model of energy parameter structure steel tube tower in electric transmission line structure, calculates damage index Φ, considers local mean temperature W to main
The influence of component performance parameter, temperature correction coefficient δ is introduced, works as W>W0When, temperature correction coefficientWhen W≤
W0When, temperature correction coefficientConsider that Specific construction situation, local natural environment can be to component performances in addition
Parameter produces considerable influence, and then has influence on damage index Φ, introduces the construction factor and envirment factor, between 0 to 1,
Damage index Φ is influenceed with respective weight d, b, c, damage index Φ calculation formula is：
Wherein, δ1Represent the construction factor, δ2Envirment factor is represented, η is Energy consumption fact, SjFor extreme displacement, Q is in the wrong
Load is taken, T is Earthquake Intensity more than the vibrations moment of 50% peak value, SmFor dominant bit of the main member within [0, the T] period
Move, E (T) is accumulation hysteresis power consumption of the main member within [0, the T] period；
(5) dual dynamic Reliability assessment is carried out to steel tube tower in electric transmission line structural model by MATLAB, if assessed
It is qualified, then it can be constructed according to steel tube tower in electric transmission line structural model, if assessment is unqualified, be likely to result in corresponding
Potential safety hazard, then need to be redesigned.
Preferably, when carrying out dual dynamic Reliability assessment to steel tube tower in electric transmission line structural model by MATLAB, if
Metewand ψ is put, wherein metewand ψ calculation formula is：
Wherein,
If ψ1、ψ20 is all higher than, steel tube tower in electric transmission line structural model meets design requirement, and it is qualified to assess；If only meet ψ1
More than 0, then to P2Reappraised after being adjusted；Remaining situation, steel tube tower in electric transmission line structure design need to be re-started；
Wherein, 0≤t≤T, t represent a time point in [0, the T] period, and a is the story drift boundary value of setting,
Φ0For the accumulated damage index boundary value of setting, story drift boundary value a and accumulated damage index boundary value Φ0According to earthquake
Type determines；σ v (x) are that velocity standard is poor, and σ s (x) are that shift standards are poor, σ2S (x) is square difference of displacement, mΦRefer to for accumulated damage
Several averages, σΦ 2For the standard deviation of accumulated damage index, P1For the first standard reliability of setting, P2For the second standard of setting
Reliability；
The P1、P2Setting range be 90%~99.9%, P1Value determines in advance according to the purposes of structure, P2It is worth basis
Its initial value P2' adaptively adjusted in the range of, specific adjustment mode is：
When assessing qualified, P2=P2′；
When assessment is unqualified and meets ψ1During more than 0, P2=P2min。
Beneficial effects of the present invention are：Steel tube tower in electric transmission line structure is built using dual dynamic reliability degree calculation method,
To carry out quantitative control design case to structure, then constructed according to the qualified steel tube tower in electric transmission line structural model of design, from
And ensure and improve the shock strength of steel tube tower in electric transmission line structure；The dual dynamic for having simplified steel tube tower in electric transmission line structure can
Calculated by degree, improve the speed of design；Temperature correction coefficient, the construction factor and envirment factor are introduced, carries out damage index Φ
Calculating, improve the precision that quantitative control design case is carried out to structure；On the premise of structure safety is met, P2Value is according at the beginning of it
Initial value is adaptively adjusted in the range of, can greatly improve efficiency, cost-effective；It is dual to steel tube tower in electric transmission line structure
Reliability carries out the assessment in terms of anti-seismic performance, can greatly reduce potential safety hazard, greatly improve safety of structure.
Brief description of the drawings
Using accompanying drawing, the invention will be further described, but the embodiment in accompanying drawing does not form any limit to the present invention
System, for one of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to the following drawings
Other accompanying drawings.
Fig. 1 is flow chart of the method for the present invention.
Embodiment
The invention will be further described with the following Examples.
Embodiment 1：A kind of construction method of steel tube tower in electric transmission line as shown in Figure 1, comprises the following steps：
(1) by CAD Primary Construction steel tube tower in electric transmission line structural model, and transmission line of electricity steel is determined
The main member of pipe tower structure model；
(2) according to local seismic fortification intensity, Aseismic Design packet and steel tube tower in electric transmission line structure property classification,
Build the stochastic seismic model of steel tube tower in electric transmission line structural model, the displacement of the corresponding main member of generation and speed
Power spectral density function；
(3) corresponding displacement power is calculated according to the power spectral density function of the displacement of the main member and speed
Spectrum density and speed-power spectrum density, integral and calculating is carried out to the displacement power spectral density and speed-power spectrum density, obtained
The square difference of displacement and velocity variance of corresponding main member；
(4) in normal temperature W0Under to the main member carry out experimental study draw its performance parameter, according to the property
The damage model of energy parameter structure steel tube tower in electric transmission line structure, calculates damage index Φ, considers local mean temperature W to main
The influence of component performance parameter, temperature correction coefficient δ is introduced, works as W>W0When, temperature correction coefficientWhen W≤
W0When, temperature correction coefficientConsider that Specific construction situation, local natural environment can be to components in addition
Can parameter produce considerable influence, and then have influence on damage index Φ, introduce the construction factor and envirment factor, between 0 to 1 it
Between, damage index Φ is influenceed with respective weight d, b, c, damage index Φ calculation formula is：
Wherein, δ1Represent the construction factor, δ2Envirment factor is represented, η is Energy consumption fact, SjFor extreme displacement, Q is in the wrong
Load is taken, T is Earthquake Intensity more than the vibrations moment of 50% peak value, SmFor dominant bit of the main member within [0, the T] period
Move, E (T) is accumulation hysteresis power consumption of the main member within [0, the T] period；
(5) dual dynamic Reliability assessment is carried out to steel tube tower in electric transmission line structural model by MATLAB, if assessed
It is qualified, then it can be constructed according to steel tube tower in electric transmission line structural model, if assessment is unqualified, be likely to result in corresponding
Potential safety hazard, then need to be redesigned.
Preferably, when carrying out dual dynamic Reliability assessment to steel tube tower in electric transmission line structural model by MATLAB, if
Metewand ψ is put, wherein metewand ψ calculation formula is：
Wherein,
If ψ1、ψ20 is all higher than, steel tube tower in electric transmission line structural model meets design requirement, and it is qualified to assess；If only meet ψ1
More than 0, then to P2Reappraised after being adjusted；Remaining situation, steel tube tower in electric transmission line structure design need to be re-started；
Wherein, 0≤t≤T, t represent a time point in [0, the T] period, and a is the story drift boundary value of setting,
Φ0For the accumulated damage index boundary value of setting, story drift boundary value a and accumulated damage index boundary value Φ0According to earthquake
Type determines；σ v (x) are that velocity standard is poor, and σ s (x) are that shift standards are poor, σ2S (x) is square difference of displacement, mΦRefer to for accumulated damage
Several averages, σΦ 2For the standard deviation of accumulated damage index, P1For the first standard reliability of setting, P2For the second standard of setting
Reliability；
The P1、P2Setting range be 90%~99.9%, P1Value determines in advance according to the purposes of structure, P2It is worth basis
Its initial value P2' adaptively adjusted in the range of, specific adjustment mode is：
When assessing qualified, P2=P2′；
When assessment is unqualified and meets ψ1During more than 0, P2=P2min。
In this embodiment：Steel tube tower in electric transmission line structure is built using dual dynamic reliability degree calculation method, with to knot
Structure carries out quantitative control design case, is then constructed according to the qualified steel tube tower in electric transmission line structural model of design, so as to ensure
And improve the shock strength of steel tube tower in electric transmission line structure；The dual dynamic reliability meter of steel tube tower in electric transmission line structure is simplified
Calculate, improve the speed of design；Temperature correction coefficient, the construction factor and envirment factor are introduced, carries out damage index Φ calculating,
Improve the precision that quantitative control design case is carried out to structure；On the premise of structure safety is met, P2Value exists according to its initial value
In the range of adaptively adjusted, efficiency can be greatly improved, it is cost-effective；To the dual reliability of steel tube tower in electric transmission line structure
The assessment in terms of anti-seismic performance is carried out, potential safety hazard can be greatly reduced, greatly improve safety of structure；First standard reliability
Value be 90%, desin speed improves 50% than correlation technique, and security improves 20% than correlation technique.
Embodiment 2：A kind of construction method of steel tube tower in electric transmission line as shown in Figure 1, comprises the following steps：
(1) by CAD Primary Construction steel tube tower in electric transmission line structural model, and transmission line of electricity steel is determined
The main member of pipe tower structure model；
(2) according to local seismic fortification intensity, Aseismic Design packet and steel tube tower in electric transmission line structure property classification,
Build the stochastic seismic model of steel tube tower in electric transmission line structural model, the displacement of the corresponding main member of generation and speed
Power spectral density function；
(3) corresponding displacement power is calculated according to the power spectral density function of the displacement of the main member and speed
Spectrum density and speed-power spectrum density, integral and calculating is carried out to the displacement power spectral density and speed-power spectrum density, obtained
The square difference of displacement and velocity variance of corresponding main member；
(4) in normal temperature W0Under to the main member carry out experimental study draw its performance parameter, according to the property
The damage model of energy parameter structure steel tube tower in electric transmission line structure, calculates damage index Φ, considers local mean temperature W to main
The influence of component performance parameter, temperature correction coefficient δ is introduced, works as W>W0When, temperature correction coefficientWhen W≤
W0When, temperature correction coefficientConsider that Specific construction situation, local natural environment can be to component performances in addition
Parameter produces considerable influence, and then has influence on damage index Φ, introduces the construction factor and envirment factor, between 0 to 1,
Damage index Φ is influenceed with respective weight d, b, c, damage index Φ calculation formula is：
Wherein, δ1Represent the construction factor, δ2Envirment factor is represented, η is Energy consumption fact, SjFor extreme displacement, Q is in the wrong
Load is taken, T is Earthquake Intensity more than the vibrations moment of 50% peak value, SmFor dominant bit of the main member within [0, the T] period
Move, E (T) is accumulation hysteresis power consumption of the main member within [0, the T] period；
(5) dual dynamic Reliability assessment is carried out to steel tube tower in electric transmission line structural model by MATLAB, if assessed
It is qualified, then it can be constructed according to steel tube tower in electric transmission line structural model, if assessment is unqualified, be likely to result in corresponding
Potential safety hazard, then need to be redesigned.
Preferably, when carrying out dual dynamic Reliability assessment to steel tube tower in electric transmission line structural model by MATLAB, if
Metewand ψ is put, wherein metewand ψ calculation formula is：
Wherein,
If ψ1、ψ20 is all higher than, steel tube tower in electric transmission line structural model meets design requirement, and it is qualified to assess；If only meet ψ1
More than 0, then to P2Reappraised after being adjusted；Remaining situation, steel tube tower in electric transmission line structure design need to be re-started；
Wherein, 0≤t≤T, t represent a time point in [0, the T] period, and a is the story drift boundary value of setting,
Φ0For the accumulated damage index boundary value of setting, story drift boundary value a and accumulated damage index boundary value Φ0According to earthquake
Type determines；σ v (x) are that velocity standard is poor, and σ s (x) are that shift standards are poor, σ2S (x) is square difference of displacement, mΦRefer to for accumulated damage
Several averages, σΦ 2For the standard deviation of accumulated damage index, P1For the first standard reliability of setting, P2For the second standard of setting
Reliability；
The P1、P2Setting range be 90%~99.9%, P1Value determines in advance according to the purposes of structure, P2It is worth basis
Its initial value P2' adaptively adjusted in the range of, specific adjustment mode is：
When assessing qualified, P2=P2′；
When assessment is unqualified and meets ψ1During more than 0, P2=P2min。
In this embodiment：Steel tube tower in electric transmission line structure is built using dual dynamic reliability degree calculation method, with to knot
Structure carries out quantitative control design case, is then constructed according to the qualified steel tube tower in electric transmission line structural model of design, so as to ensure
And improve the shock strength of steel tube tower in electric transmission line structure；The dual dynamic reliability meter of steel tube tower in electric transmission line structure is simplified
Calculate, improve the speed of design；Temperature correction coefficient, the construction factor and envirment factor are introduced, carries out damage index Φ calculating,
Improve the precision that quantitative control design case is carried out to structure；On the premise of structure safety is met, P2Value exists according to its initial value
In the range of adaptively adjusted, efficiency can be greatly improved, it is cost-effective；To the dual reliability of steel tube tower in electric transmission line structure
The assessment in terms of anti-seismic performance is carried out, potential safety hazard can be greatly reduced, greatly improve safety of structure；First standard reliability
Value be 92%, desin speed improves 45% than correlation technique, and security improves 25% than correlation technique.
Embodiment 3：A kind of construction method of steel tube tower in electric transmission line as shown in Figure 1, comprises the following steps：
(1) by CAD Primary Construction steel tube tower in electric transmission line structural model, and transmission line of electricity steel is determined
The main member of pipe tower structure model；
(2) according to local seismic fortification intensity, Aseismic Design packet and steel tube tower in electric transmission line structure property classification,
Build the stochastic seismic model of steel tube tower in electric transmission line structural model, the displacement of the corresponding main member of generation and speed
Power spectral density function；
(3) corresponding displacement power is calculated according to the power spectral density function of the displacement of the main member and speed
Spectrum density and speed-power spectrum density, integral and calculating is carried out to the displacement power spectral density and speed-power spectrum density, obtained
The square difference of displacement and velocity variance of corresponding main member；
(4) in normal temperature W0Under to the main member carry out experimental study draw its performance parameter, according to the property
The damage model of energy parameter structure steel tube tower in electric transmission line structure, calculates damage index Φ, considers local mean temperature W to main
The influence of component performance parameter, temperature correction coefficient δ is introduced, works as W>W0When, temperature correction coefficientWhen W≤
W0When, temperature correction coefficientConsider that Specific construction situation, local natural environment can be to component performances in addition
Parameter produces considerable influence, and then has influence on damage index Φ, introduces the construction factor and envirment factor, between 0 to 1,
Damage index Φ is influenceed with respective weight d, b, c, damage index Φ calculation formula is：
Wherein, δ1Represent the construction factor, δ2Envirment factor is represented, η is Energy consumption fact, SjFor extreme displacement, Q is in the wrong
Load is taken, T is Earthquake Intensity more than the vibrations moment of 50% peak value, SmFor dominant bit of the main member within [0, the T] period
Move, E (T) is accumulation hysteresis power consumption of the main member within [0, the T] period；
(5) dual dynamic Reliability assessment is carried out to steel tube tower in electric transmission line structural model by MATLAB, if assessed
It is qualified, then it can be constructed according to steel tube tower in electric transmission line structural model, if assessment is unqualified, be likely to result in corresponding
Potential safety hazard, then need to be redesigned.
Preferably, when carrying out dual dynamic Reliability assessment to steel tube tower in electric transmission line structural model by MATLAB, if
Metewand ψ is put, wherein metewand ψ calculation formula is：
Wherein,
If ψ1、ψ20 is all higher than, steel tube tower in electric transmission line structural model meets design requirement, and it is qualified to assess；If only meet ψ1
More than 0, then to P2Reappraised after being adjusted；Remaining situation, steel tube tower in electric transmission line structure design need to be re-started；
Wherein, 0≤t≤T, t represent a time point in [0, the T] period, and a is the story drift boundary value of setting,
Φ0For the accumulated damage index boundary value of setting, story drift boundary value a and accumulated damage index boundary value Φ0According to earthquake
Type determines；σ v (x) are that velocity standard is poor, and σ s (x) are that shift standards are poor, σ2S (x) is square difference of displacement, mΦRefer to for accumulated damage
Several averages, σΦ 2For the standard deviation of accumulated damage index, P1For the first standard reliability of setting, P2For the second standard of setting
Reliability；
The P1、P2Setting range be 90%~99.9%, P1Value determines in advance according to the purposes of structure, P2It is worth basis
Its initial value P2' adaptively adjusted in the range of, specific adjustment mode is：
When assessing qualified, P2=P2′；
When assessment is unqualified and meets ψ1During more than 0, P2=P2min。
In this embodiment：Steel tube tower in electric transmission line structure is built using dual dynamic reliability degree calculation method, with to knot
Structure carries out quantitative control design case, is then constructed according to the qualified steel tube tower in electric transmission line structural model of design, so as to ensure
And improve the shock strength of steel tube tower in electric transmission line structure；The dual dynamic reliability meter of steel tube tower in electric transmission line structure is simplified
Calculate, improve the speed of design；Temperature correction coefficient, the construction factor and envirment factor are introduced, carries out damage index Φ calculating,
Improve the precision that quantitative control design case is carried out to structure；On the premise of structure safety is met, P2Value exists according to its initial value
In the range of adaptively adjusted, efficiency can be greatly improved, it is cost-effective；To the dual reliability of steel tube tower in electric transmission line structure
The assessment in terms of anti-seismic performance is carried out, potential safety hazard can be greatly reduced, greatly improve safety of structure；First standard reliability
Value be 94%, desin speed improves 40% than correlation technique, and security improves 30% than correlation technique.
Embodiment 4：A kind of construction method of steel tube tower in electric transmission line as shown in Figure 1, comprises the following steps：
(1) by CAD Primary Construction steel tube tower in electric transmission line structural model, and transmission line of electricity steel is determined
The main member of pipe tower structure model；
(2) according to local seismic fortification intensity, Aseismic Design packet and steel tube tower in electric transmission line structure property classification,
Build the stochastic seismic model of steel tube tower in electric transmission line structural model, the displacement of the corresponding main member of generation and speed
Power spectral density function；
(3) corresponding displacement power is calculated according to the power spectral density function of the displacement of the main member and speed
Spectrum density and speed-power spectrum density, integral and calculating is carried out to the displacement power spectral density and speed-power spectrum density, obtained
The square difference of displacement and velocity variance of corresponding main member；
(4) in normal temperature W0Under to the main member carry out experimental study draw its performance parameter, according to the property
The damage model of energy parameter structure steel tube tower in electric transmission line structure, calculates damage index Φ, considers local mean temperature W to main
The influence of component performance parameter, temperature correction coefficient δ is introduced, works as W>W0When, temperature correction coefficientWhen W≤
W0When, temperature correction coefficientConsider that Specific construction situation, local natural environment can be to components in addition
Can parameter produce considerable influence, and then have influence on damage index Φ, introduce the construction factor and envirment factor, between 0 to 1 it
Between, damage index Φ is influenceed with respective weight d, b, c, damage index Φ calculation formula is：
Wherein, δ1Represent the construction factor, δ2Envirment factor is represented, η is Energy consumption fact, SjFor extreme displacement, Q is in the wrong
Load is taken, T is Earthquake Intensity more than the vibrations moment of 50% peak value, SmFor dominant bit of the main member within [0, the T] period
Move, E (T) is accumulation hysteresis power consumption of the main member within [0, the T] period；
(5) dual dynamic Reliability assessment is carried out to steel tube tower in electric transmission line structural model by MATLAB, if assessed
It is qualified, then it can be constructed according to steel tube tower in electric transmission line structural model, if assessment is unqualified, be likely to result in corresponding
Potential safety hazard, then need to be redesigned.
Preferably, when carrying out dual dynamic Reliability assessment to steel tube tower in electric transmission line structural model by MATLAB, if
Metewand ψ is put, wherein metewand ψ calculation formula is：
Wherein,
If ψ1、ψ20 is all higher than, steel tube tower in electric transmission line structural model meets design requirement, and it is qualified to assess；If only meet ψ1
More than 0, then to P2Reappraised after being adjusted；Remaining situation, steel tube tower in electric transmission line structure design need to be re-started；
Wherein, 0≤t≤T, t represent a time point in [0, the T] period, and a is the story drift boundary value of setting,
Φ0For the accumulated damage index boundary value of setting, story drift boundary value a and accumulated damage index boundary value Φ0According to earthquake
Type determines；σ v (x) are that velocity standard is poor, and σ s (x) are that shift standards are poor, σ2S (x) is square difference of displacement, mΦRefer to for accumulated damage
Several averages, σΦ 2For the standard deviation of accumulated damage index, P1For the first standard reliability of setting, P2For the second standard of setting
Reliability；
The P1、P2Setting range be 90%~99.9%, P1Value determines in advance according to the purposes of structure, P2It is worth basis
Its initial value P2' adaptively adjusted in the range of, specific adjustment mode is：
When assessing qualified, P2=P2′；
When assessment is unqualified and meets ψ1During more than 0, P2=P2min。。
In this embodiment：Steel tube tower in electric transmission line structure is built using dual dynamic reliability degree calculation method, with to knot
Structure carries out quantitative control design case, is then constructed according to the qualified steel tube tower in electric transmission line structural model of design, so as to ensure
And improve the shock strength of steel tube tower in electric transmission line structure；The dual dynamic reliability meter of steel tube tower in electric transmission line structure is simplified
Calculate, improve the speed of design；Temperature correction coefficient, the construction factor and envirment factor are introduced, carries out damage index Φ calculating,
Improve the precision that quantitative control design case is carried out to structure；On the premise of structure safety is met, P2Value exists according to its initial value
In the range of adaptively adjusted, efficiency can be greatly improved, it is cost-effective；To the dual reliability of steel tube tower in electric transmission line structure
The assessment in terms of anti-seismic performance is carried out, potential safety hazard can be greatly reduced, greatly improve safety of structure；First standard reliability
Value be 96%, desin speed improves 35% than correlation technique, and security improves 35% than correlation technique.
Embodiment 5：A kind of construction method of steel tube tower in electric transmission line as shown in Figure 1, comprises the following steps：
(1) by CAD Primary Construction steel tube tower in electric transmission line structural model, and transmission line of electricity steel is determined
The main member of pipe tower structure model；
(2) according to local seismic fortification intensity, Aseismic Design packet and steel tube tower in electric transmission line structure property classification,
Build the stochastic seismic model of steel tube tower in electric transmission line structural model, the displacement of the corresponding main member of generation and speed
Power spectral density function；
(3) corresponding displacement power is calculated according to the power spectral density function of the displacement of the main member and speed
Spectrum density and speed-power spectrum density, integral and calculating is carried out to the displacement power spectral density and speed-power spectrum density, obtained
The square difference of displacement and velocity variance of corresponding main member；
(4) in normal temperature W0Under to the main member carry out experimental study draw its performance parameter, according to the property
The damage model of energy parameter structure steel tube tower in electric transmission line structure, calculates damage index Φ, considers local mean temperature W to main
The influence of component performance parameter, temperature correction coefficient δ is introduced, works as W>W0When, temperature correction coefficientWhen W≤
W0When, temperature correction coefficientConsider that Specific construction situation, local natural environment can be to component performances in addition
Parameter produces considerable influence, and then has influence on damage index Φ, introduces the construction factor and envirment factor, between 0 to 1,
Damage index Φ is influenceed with respective weight d, b, c, damage index Φ calculation formula is：
Wherein, δ1Represent the construction factor, δ2Envirment factor is represented, η is Energy consumption fact, SjFor extreme displacement, Q is in the wrong
Load is taken, T is Earthquake Intensity more than the vibrations moment of 50% peak value, SmFor dominant bit of the main member within [0, the T] period
Move, E (T) is accumulation hysteresis power consumption of the main member within [0, the T] period；
(5) dual dynamic Reliability assessment is carried out to steel tube tower in electric transmission line structural model by MATLAB, if assessed
It is qualified, then it can be constructed according to steel tube tower in electric transmission line structural model, if assessment is unqualified, be likely to result in corresponding
Potential safety hazard, then need to be redesigned.
Preferably, when carrying out dual dynamic Reliability assessment to steel tube tower in electric transmission line structural model by MATLAB, if
Metewand ψ is put, wherein metewand ψ calculation formula is：
Wherein,
If ψ1、ψ20 is all higher than, steel tube tower in electric transmission line structural model meets design requirement, and it is qualified to assess；If only meet ψ1
More than 0, then to P2Reappraised after being adjusted；Remaining situation, steel tube tower in electric transmission line structure design need to be re-started；
Wherein, 0≤t≤T, t represent a time point in [0, the T] period, and a is the story drift boundary value of setting,
Φ0For the accumulated damage index boundary value of setting, story drift boundary value a and accumulated damage index boundary value Φ0According to earthquake
Type determines；σ v (x) are that velocity standard is poor, and σ s (x) are that shift standards are poor, σ2S (x) is square difference of displacement, mΦRefer to for accumulated damage
Several averages, σΦ 2For the standard deviation of accumulated damage index, P1For the first standard reliability of setting, P2For the second standard of setting
Reliability；
The P1、P2Setting range be 90%~99.9%, P1Value determines in advance according to the purposes of structure, P2It is worth basis
Its initial value P2' adaptively adjusted in the range of, specific adjustment mode is：
When assessing qualified, P2=P2′；
When assessment is unqualified and meets ψ1During more than 0, P2=P2min。
In this embodiment：Steel tube tower in electric transmission line structure is built using dual dynamic reliability degree calculation method, with to knot
Structure carries out quantitative control design case, is then constructed according to the qualified steel tube tower in electric transmission line structural model of design, so as to ensure
And improve the shock strength of steel tube tower in electric transmission line structure；The dual dynamic reliability meter of steel tube tower in electric transmission line structure is simplified
Calculate, improve the speed of design；Temperature correction coefficient, the construction factor and envirment factor are introduced, carries out damage index Φ calculating,
Improve the precision that quantitative control design case is carried out to structure；On the premise of structure safety is met, P2Value exists according to its initial value
In the range of adaptively adjusted, efficiency can be greatly improved, it is cost-effective；To the dual reliability of steel tube tower in electric transmission line structure
The assessment in terms of anti-seismic performance is carried out, potential safety hazard can be greatly reduced, greatly improve safety of structure；First standard reliability
Value be 98%, desin speed improves 30% than correlation technique, and security improves 40% than correlation technique.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of scope is protected, although being explained with reference to preferred embodiment to the present invention, one of ordinary skill in the art should
Work as understanding, technical scheme can be modified or equivalent substitution, without departing from the reality of technical solution of the present invention
Matter and scope.
Claims (2)
1. a kind of construction method of steel tube tower in electric transmission line, it is characterized in that, comprise the following steps：
(1) by CAD Primary Construction steel tube tower in electric transmission line structural model, and steel tube tower in electric transmission line is determined
The main member of structural model；
(2) according to local seismic fortification intensity, Aseismic Design packet and steel tube tower in electric transmission line structure property classification, structure
The stochastic seismic model of steel tube tower in electric transmission line structural model, the displacement of the corresponding main member of generation and the power of speed
Spectral density function；
(3) corresponding displacement power spectrum is calculated according to the power spectral density function of the displacement of the main member and speed
Degree and speed-power spectrum density, integral and calculating is carried out to the displacement power spectral density and speed-power spectrum density, obtained correspondingly
The square difference of displacement and velocity variance of main member；
(4) in normal temperature W0Under to the main member carry out experimental study draw its performance parameter, according to the performance parameter
The damage model of steel tube tower in electric transmission line structure is built, damage index Φ is calculated, considers local mean temperature W to main member
The influence of energy parameter, introduces temperature correction coefficient δ, works as W>W0When, temperature correction coefficientAs W≤W0When, temperature
Spend correction factorConsider that Specific construction situation, local natural environment can produce to component performance parameter in addition
Raw considerable influence, and then damage index Φ is had influence on, the construction factor and envirment factor are introduced, between 0 to 1, with respective
Weight d, b, c influence damage index Φ, and damage index Φ calculation formula is：
<mrow>
<mi>&Phi;</mi>
<mo>=</mo>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>-</mo>
<mi>&eta;</mi>
<mo>)</mo>
</mrow>
<mfrac>
<msub>
<mi>s</mi>
<mi>m</mi>
</msub>
<msub>
<mi>s</mi>
<mi>j</mi>
</msub>
</mfrac>
<mrow>
<mo>(</mo>
<mi>&delta;</mi>
<mi>d</mi>
<mo>+</mo>
<msub>
<mi>&delta;</mi>
<mn>1</mn>
</msub>
<mi>b</mi>
<mo>+</mo>
<msub>
<mi>&delta;</mi>
<mn>2</mn>
</msub>
<mi>c</mi>
<mo>)</mo>
</mrow>
<mo>+</mo>
<mi>&eta;</mi>
<mfrac>
<mrow>
<mi>E</mi>
<mrow>
<mo>(</mo>
<mi>T</mi>
<mo>)</mo>
</mrow>
</mrow>
<mrow>
<msub>
<mi>QS</mi>
<mi>j</mi>
</msub>
</mrow>
</mfrac>
</mrow>
Wherein, δ1Represent the construction factor, δ2Envirment factor is represented, η is Energy consumption fact, SjFor extreme displacement, Q is surrender lotus
Carry, T is Earthquake Intensity more than the vibrations moment of 50% peak value, SmFor maximum displacement of the main member within [0, the T] period, E
(T) it is accumulation hysteresis power consumption of the main member within [0, the T] period；
(5) dual dynamic Reliability assessment is carried out to steel tube tower in electric transmission line structural model by MATLAB, if assessment is qualified,
It can then be constructed according to steel tube tower in electric transmission line structural model, if assessment is unqualified, be likely to result in corresponding safety
Hidden danger, then need to be redesigned.
2. a kind of construction method of steel tube tower in electric transmission line according to claim 1, it is characterized in that, by MATLAB to defeated
When electric line steel tube tower structural model carries out dual dynamic Reliability assessment, metewand ψ, wherein metewand ψ meter are set
Calculating formula is：
<mrow>
<mi>&psi;</mi>
<mo>=</mo>
<msub>
<mi>&psi;</mi>
<mn>1</mn>
</msub>
<msub>
<mi>&psi;</mi>
<mn>2</mn>
</msub>
</mrow>
<mrow>
<mo>=</mo>
<mo>{</mo>
<mi>exp</mi>
<mo>&lsqb;</mo>
<mo>-</mo>
<munderover>
<mo>&Integral;</mo>
<mn>0</mn>
<mi>t</mi>
</munderover>
<mfrac>
<mn>1</mn>
<mi>&pi;</mi>
</mfrac>
<mfrac>
<mrow>
<mi>&sigma;</mi>
<mi>v</mi>
<mrow>
<mo>(</mo>
<mi>x</mi>
<mo>)</mo>
</mrow>
</mrow>
<mrow>
<mi>&sigma;</mi>
<mi>s</mi>
<mrow>
<mo>(</mo>
<mi>x</mi>
<mo>)</mo>
</mrow>
</mrow>
</mfrac>
<mi>exp</mi>
<mrow>
<mo>(</mo>
<mo>-</mo>
<mfrac>
<msup>
<mi>a</mi>
<mn>2</mn>
</msup>
<mrow>
<mn>2</mn>
<msup>
<mi>&sigma;</mi>
<mn>2</mn>
</msup>
<mi>s</mi>
<mrow>
<mo>(</mo>
<mi>x</mi>
<mo>)</mo>
</mrow>
</mrow>
</mfrac>
<mo>)</mo>
</mrow>
<mi>d</mi>
<mi>x</mi>
<mo>&rsqb;</mo>
<mo>-</mo>
<msub>
<mi>P</mi>
<mn>1</mn>
</msub>
<mo>}</mo>
<mo>&times;</mo>
<mo>{</mo>
<munderover>
<mo>&Integral;</mo>
<mn>0</mn>
<msub>
<mi>&Phi;</mi>
<mn>0</mn>
</msub>
</munderover>
<mo>&lsqb;</mo>
<mfrac>
<mn>1</mn>
<mrow>
<msqrt>
<mrow>
<mn>2</mn>
<mi>&pi;</mi>
</mrow>
</msqrt>
<mrow>
<mo>(</mo>
<mi>l</mi>
<mi>n</mi>
<mi>&Phi;</mi>
<mo>)</mo>
</mrow>
<mi>s</mi>
</mrow>
</mfrac>
<mi>exp</mi>
<mfrac>
<mrow>
<mo>&lsqb;</mo>
<mi>ln</mi>
<mi> </mi>
<msub>
<mi>m</mi>
<mi>&Phi;</mi>
</msub>
<mo>-</mo>
<mi>ln</mi>
<mi> </mi>
<mi>s</mi>
<mo>-</mo>
<mfrac>
<mn>1</mn>
<mn>2</mn>
</mfrac>
<mi>l</mi>
<mi>n</mi>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>+</mo>
<mfrac>
<mrow>
<msup>
<msub>
<mi>&sigma;</mi>
<mi>&Phi;</mi>
</msub>
<mi>2</mi>
</msup>
</mrow>
<mrow>
<msup>
<msub>
<mi>m</mi>
<mi>&Phi;</mi>
</msub>
<mi>2</mi>
</msup>
</mrow>
</mfrac>
<mo>)</mo>
</mrow>
</mrow>
<mrow>
<mn>2</mn>
<mi>l</mi>
<mi>n</mi>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>+</mo>
<mfrac>
<mrow>
<msup>
<msub>
<mi>&sigma;</mi>
<mi>&Phi;</mi>
</msub>
<mn>2</mn>
</msup>
</mrow>
<mrow>
<msup>
<msub>
<mi>m</mi>
<mi>&Phi;</mi>
</msub>
<mn>2</mn>
</msup>
</mrow>
</mfrac>
<mo>)</mo>
</mrow>
</mrow>
</mfrac>
<mo>&rsqb;</mo>
<mi>d</mi>
<mi>s</mi>
<mo>-</mo>
<msub>
<mi>P</mi>
<mn>2</mn>
</msub>
<mo>}</mo>
</mrow>
Wherein,
<mrow>
<msub>
<mi>&Psi;</mi>
<mn>1</mn>
</msub>
<mo>=</mo>
<mo>{</mo>
<mi>exp</mi>
<mo>&lsqb;</mo>
<mo>-</mo>
<munderover>
<mo>&Integral;</mo>
<mn>0</mn>
<mi>t</mi>
</munderover>
<mfrac>
<mn>1</mn>
<mi>&pi;</mi>
</mfrac>
<mfrac>
<mrow>
<mi>&sigma;</mi>
<mi>v</mi>
<mrow>
<mo>(</mo>
<mi>x</mi>
<mo>)</mo>
</mrow>
</mrow>
<mrow>
<mi>&sigma;</mi>
<mi>s</mi>
<mrow>
<mo>(</mo>
<mi>x</mi>
<mo>)</mo>
</mrow>
</mrow>
</mfrac>
<mi>exp</mi>
<mrow>
<mo>(</mo>
<mo>-</mo>
<mfrac>
<msup>
<mi>a</mi>
<mn>2</mn>
</msup>
<mrow>
<mn>2</mn>
<msup>
<mi>&sigma;</mi>
<mn>2</mn>
</msup>
<mi>s</mi>
<mrow>
<mo>(</mo>
<mi>x</mi>
<mo>)</mo>
</mrow>
</mrow>
</mfrac>
<mo>)</mo>
</mrow>
<mi>d</mi>
<mi>x</mi>
<mo>&rsqb;</mo>
<mo>-</mo>
<msub>
<mi>P</mi>
<mn>1</mn>
</msub>
<mo>}</mo>
<mo>,</mo>
<msub>
<mi>&Psi;</mi>
<mn>2</mn>
</msub>
<mo>=</mo>
<mo>{</mo>
<munderover>
<mo>&Integral;</mo>
<mn>0</mn>
<msub>
<mi>&Phi;</mi>
<mn>0</mn>
</msub>
</munderover>
<mo>&lsqb;</mo>
<mfrac>
<mn>1</mn>
<mrow>
<msqrt>
<mrow>
<mn>2</mn>
<mi>&pi;</mi>
</mrow>
</msqrt>
<mrow>
<mo>(</mo>
<mi>l</mi>
<mi>n</mi>
<mi>&Phi;</mi>
<mo>)</mo>
</mrow>
<mi>s</mi>
</mrow>
</mfrac>
<mi>exp</mi>
<mfrac>
<mrow>
<mo>&lsqb;</mo>
<mi>ln</mi>
<mi> </mi>
<msub>
<mi>m</mi>
<mi>&Phi;</mi>
</msub>
<mo>-</mo>
<mi>ln</mi>
<mi> </mi>
<mi>s</mi>
<mo>-</mo>
<mfrac>
<mn>1</mn>
<mn>2</mn>
</mfrac>
<mi>l</mi>
<mi>n</mi>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>+</mo>
<mfrac>
<mrow>
<msup>
<msub>
<mi>&sigma;</mi>
<mi>&Phi;</mi>
</msub>
<mi>2</mi>
</msup>
</mrow>
<mrow>
<msup>
<msub>
<mi>m</mi>
<mi>&Phi;</mi>
</msub>
<mi>2</mi>
</msup>
</mrow>
</mfrac>
<mo>)</mo>
</mrow>
</mrow>
<mrow>
<mn>2</mn>
<mi>l</mi>
<mi>n</mi>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>+</mo>
<mfrac>
<mrow>
<msup>
<msub>
<mi>&sigma;</mi>
<mi>&Phi;</mi>
</msub>
<mn>2</mn>
</msup>
</mrow>
<mrow>
<msup>
<msub>
<mi>m</mi>
<mi>&Phi;</mi>
</msub>
<mn>2</mn>
</msup>
</mrow>
</mfrac>
<mo>)</mo>
</mrow>
</mrow>
</mfrac>
<mo>&rsqb;</mo>
<mi>d</mi>
<mi>s</mi>
<mo>-</mo>
<msub>
<mi>P</mi>
<mn>2</mn>
</msub>
<mo>}</mo>
</mrow>
If ψ1、ψ20 is all higher than, steel tube tower in electric transmission line structural model meets design requirement, and it is qualified to assess；If only meet ψ1It is more than
0, then to P2Reappraised after being adjusted；Remaining situation, steel tube tower in electric transmission line structure design need to be re-started；
Wherein, 0≤t≤T, t represent [0, the T] period in a time point, a be setting story drift boundary value, Φ0For
The accumulated damage index boundary value of setting, story drift boundary value a and accumulated damage index boundary value Φ0According to Types of Earthquakes
It is determined that；σ v (x) are that velocity standard is poor, and σ s (x) are that shift standards are poor, σ2S (x) is square difference of displacement, mΦFor accumulated damage index
Average, σΦ 2For the standard deviation of accumulated damage index, P1For the first standard reliability of setting, P2It is reliable for the second standard of setting
Degree；
The P1、P2Setting range be 90%~99.9%, P1Value determines in advance according to the purposes of structure, P2Value is initial according to its
Value P2' adaptively adjusted in the range of, specific adjustment mode is：
When assessing qualified, P2=P2′；
When assessment is unqualified and meets ψ1During more than 0, P2=P2min。
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