CN110032824A - A kind of engineering structure seismic design based on displacement method - Google Patents
A kind of engineering structure seismic design based on displacement method Download PDFInfo
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- CN110032824A CN110032824A CN201910336715.7A CN201910336715A CN110032824A CN 110032824 A CN110032824 A CN 110032824A CN 201910336715 A CN201910336715 A CN 201910336715A CN 110032824 A CN110032824 A CN 110032824A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/06—Power analysis or power optimisation
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Abstract
The present invention by calculate angle of displacement limit value can be fabulous reaction stress and deformation performance, the yield displacement of corresponding displacement angle limit value can be released so that it is determined that demand by damping ratio, its limiting condition for being easiest to impacted link can be reacted in practical structures so that it is determined that whether structure is feasible using assumption value according to the architecture quality of structure and intensity, by calculating the performance capabilities that can be simulated when encountering different degrees of earthquake to the design that different performance level carries out, carry out Properties Control, it is a kind of very reliably method that earthquake is resisted using displacement structure, on the basis of seismic design based on displacement, designer needs receiving behavior of better control structure during coming earthquake, it prevents because of destruction caused by structural degeneration scarce capacity, therefore in later Aseismic Design, we need one kind that can effectively control building Collapse state makes building reach the method for antidetonation peak performance in period phase, reduces disaster expense and improves safety.
Description
Technical field
The present invention relates to a kind of engineering structure seismic design based on displacement methods.
Background technique
While design, the shockproof requirements to building are to be able to bear certain slight earthquake for present building structure,
This just needs building structure to have enough rigidity and bearing capacity, but enough if necessary to have lower than macroseism with regard to Structure of need
Deformability, and possess biggish energy consumption, in earthquake, structural damage degree is corresponding to the displacement of construction and deformability ceases
Manner of breathing closes, therefore resisting using displacement structure earthquake is a kind of very reliably method, on seismic design based on displacement basis
On, designer needs receiving behavior of better control structure during coming earthquake, prevents because of structural degeneration ability not
It is destroyed caused by foot, therefore in later Aseismic Design, it would be desirable to which one kind, which can effectively control building collapse state, to be made
Building reaches the method for antidetonation peak performance in period phase, reduces disaster expense and improves safety.
Summary of the invention
The technical solution that the present invention uses for the above technical issues are as follows: a kind of engineering structure is set based on the antidetonation of displacement
Meter method, comprising the following steps:
(1) essential attribute for determining structure design material, strength grade and structure component including material
Required numerical value.
(2) seismic behavior according to demand is calculated, seismic behavior target needed for determining and corresponding angle of displacement limit
Value.
(3) sidesway curve is determined according to target, is calculated according to the design object of required seismic behavior, it is assumed that angle of displacement
Limit value is most limiting value, substitutes into and calculates structure vertex ductility factor.
(4) seismic behavior according to demand carries out equivalent damping ratio, and seismic behavior as needed calculates, highly less than 40
Value is 0.04 when rice, and value is 0.03 when greater than 40 meters and less than 180 meters, and the value that goes beyond the scope is 0.02.
(5) gravitational load of the structure under horizontal earthquake effect is calculated, and is carried out by factors such as the material shapes of structure
Bearing capacity calculation obtains the non-deformability of structure, is analyzed by non-deformability, it is assumed that one is specified to calculating intensity and needs
It asks, if it is assumed that value and actual demand numerical value, which generate difference, is then modified calculating, it is assumed that no gap or gap are not achieved
Dangerous numerical value then may be implemented and carry out structure building.
(6) base shear for calculating structure, carries out group using Pushover method and by top displacement numerical value
Close analysis.
(7) system with several degrees of freedom is carried out again according to demand seismic behavior and actual design mechanism and analyze structure, establish energy
Power spectral curve simultaneously establishes demand spectral curve simultaneously, improves the levels of ductility of structure, and limiting damage is destroyed with tensile yield
Based on, the destruction generated by deformation is avoided, brittle break is avoided.
(8) it will assume that value calculated result summarizes, determined by numerical value and assume shock resistance with actual demand shock resistance
Gap can build component when composite demand and complete structure.
Compared with prior art, the advantages and positive effects of the present invention are, propose a kind of engineering structure and are based on displacement
Seismic Design Method can be with by damping ratio by calculating the reaction stress and deformation performance that angle of displacement limit value can be fabulous
The yield displacement of corresponding displacement angle limit value is released so that it is determined that demand, uses assumption value can according to the architecture quality of structure and intensity
With react in practical structures its limiting condition for being easiest to impacted link so that it is determined that whether structure feasible, by difference
The design that performance level carries out calculates the performance capabilities that can be simulated when encountering different degrees of earthquake, carries out Properties Control.
Specific embodiment
To better understand the objects, features and advantages of the present invention, below with reference to embodiment to this hair
It is bright to be described further.It should be noted that in the absence of conflict, the feature in embodiments herein and embodiment can
To be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other modes described herein are different from, therefore, the present invention is not limited to the specific of specification is described below
The limitation of embodiment.
A kind of engineering structure seismic design based on displacement method, comprising the following steps:
(1) essential attribute for determining structure design material, strength grade and structure component including material
Required numerical value.
(2) seismic behavior according to demand is calculated, seismic behavior target needed for determining and corresponding angle of displacement limit
Value.
(3) sidesway curve is determined according to target, is calculated according to the design object of required seismic behavior, it is assumed that angle of displacement
Limit value is most limiting value, substitutes into and calculates structure vertex ductility factor.
(4) seismic behavior according to demand carries out equivalent damping ratio, and seismic behavior as needed calculates, highly less than 40
Value is 0.04 when rice, and value is 0.03 when greater than 40 meters and less than 180 meters, and the value that goes beyond the scope is 0.02.
(5) gravitational load of the structure under horizontal earthquake effect is calculated, and is carried out by factors such as the material shapes of structure
Bearing capacity calculation obtains the non-deformability of structure, is analyzed by non-deformability, it is assumed that one is specified to calculating intensity and needs
It asks, if it is assumed that value and actual demand numerical value, which generate difference, is then modified calculating, it is assumed that no gap or gap are not achieved
Dangerous numerical value then may be implemented and carry out structure building.
(6) base shear for calculating structure, carries out group using Pushover method and by top displacement numerical value
Close analysis.
(7) system with several degrees of freedom is carried out again according to demand seismic behavior and actual design mechanism and analyze structure, establish energy
Power spectral curve simultaneously establishes demand spectral curve simultaneously, improves the levels of ductility of structure, and limiting damage is destroyed with tensile yield
Based on, the destruction generated by deformation is avoided, brittle break is avoided.
(8) it will assume that value calculated result summarizes, determined by numerical value and assume shock resistance with actual demand shock resistance
Gap can build component when composite demand and complete structure.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
It imitates embodiment and is applied to other fields, but without departing from the technical solutions of the present invention, according to the technical essence of the invention
Any simple modification, equivalent variations and remodeling to the above embodiments, still fall within the protection scope of technical solution of the present invention.
Claims (1)
1. a kind of engineering structure seismic design based on displacement method, which comprises the following steps:
(1) essential attribute for determining structure design material, the institute of strength grade and structure component including material
Need numerical value.
(2) seismic behavior according to demand is calculated, seismic behavior target needed for determining and corresponding angle of displacement limit value.
(3) sidesway curve is determined according to target, is calculated according to the design object of required seismic behavior, it is assumed that angle of displacement limit value
For most limiting value, substitutes into and calculate structure vertex ductility factor u.
(4) seismic behavior according to demand carries out equivalent damping ratio, and seismic behavior as needed calculates, highly less than 40 meters when
Value is 0.04, and value is 0.03 when greater than 40 meters and less than 180 meters, and the value that goes beyond the scope is 0.02.
(5) gravitational load of the structure under horizontal earthquake effect is calculated, and is carried by factors such as the material shapes of structure
The non-deformability of structure is calculated in power, is analyzed by non-deformability, it is assumed that one is specified to calculate strength demand, such as
Fruit assumption value and actual demand numerical value generate difference and are then modified calculating, it is assumed that dangerous number is not achieved in no gap or gap
Value, then may be implemented and carry out structure building.
(6) base shear for calculating structure is combined point using Pushover method and by top displacement numerical value
Analysis.
(7) system with several degrees of freedom is carried out again according to demand seismic behavior and actual design mechanism analyze structure, capacity-building spectrum
Curve simultaneously establishes demand spectral curve simultaneously, improves the levels of ductility of structure, and based on limiting damage destroyed with tensile yield,
The destruction generated by deformation is avoided, brittle break is avoided.
(8) will assume that value calculated result summarizes, by numerical value determine assume shock resistance with actual demand shock resistance gap,
Component can be built when composite demand completes structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910336715.7A CN110032824A (en) | 2019-04-25 | 2019-04-25 | A kind of engineering structure seismic design based on displacement method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910336715.7A CN110032824A (en) | 2019-04-25 | 2019-04-25 | A kind of engineering structure seismic design based on displacement method |
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| Publication Number | Publication Date |
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| CN110032824A true CN110032824A (en) | 2019-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910336715.7A Withdrawn CN110032824A (en) | 2019-04-25 | 2019-04-25 | A kind of engineering structure seismic design based on displacement method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111931313A (en) * | 2020-10-09 | 2020-11-13 | 南京长江都市建筑设计股份有限公司 | Method, device, equipment and medium for processing overrun structure |
| CN116310791A (en) * | 2023-01-19 | 2023-06-23 | 中国地震台网中心 | Rapid judgment method and electronic equipment for extremely disaster area based on building earthquake damage detection |
-
2019
- 2019-04-25 CN CN201910336715.7A patent/CN110032824A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111931313A (en) * | 2020-10-09 | 2020-11-13 | 南京长江都市建筑设计股份有限公司 | Method, device, equipment and medium for processing overrun structure |
| CN116310791A (en) * | 2023-01-19 | 2023-06-23 | 中国地震台网中心 | Rapid judgment method and electronic equipment for extremely disaster area based on building earthquake damage detection |
| CN116310791B (en) * | 2023-01-19 | 2023-09-05 | 中国地震台网中心 | Rapid judgment method and electronic equipment for extremely disaster area based on building earthquake damage detection |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190719 |
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