CN104612274A - Structural reliability assessment method based on elastic-plastic analysis theory - Google Patents
Structural reliability assessment method based on elastic-plastic analysis theory Download PDFInfo
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- CN104612274A CN104612274A CN201410762081.9A CN201410762081A CN104612274A CN 104612274 A CN104612274 A CN 104612274A CN 201410762081 A CN201410762081 A CN 201410762081A CN 104612274 A CN104612274 A CN 104612274A
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Abstract
The invention discloses a structural reliability assessment method based on an elastic-plastic analysis theory. The method includes the step of adjusting the maximum value of an earthquake influence coefficient and an interval range of a response spectrum under the action of a horizontal earthquake in a rectangular loading mode to obtain the response range of an earthquake action structure, the step of applying interval operation to determine non-probabilistic reliability of the structure, and the step of adopting an interval story drift angle limitation method to determine a target displacement interval under the action of a structural earthquake so as to determine reliability of an engineering structure according to the target displacement interval. According to the method, the reliability of the engineering structure is assessed under the action of the earthquakes according to the elastic-plastic analysis theory; according to reliability assessed according to the target displacement interval, the maximum lateral displacement of a redesigned engineering structure is greatly reduced, and lateral deformation tends to be uniform.
Description
Technical field
The present invention relates to Structural Reliability Evaluation method, especially, relate to a kind of Structural Reliability Evaluation method based on elastic-plastic analysis theory.
Background technology
Earthquake belong to incident, violent earthquake belong to Disaster Event, because the geological data be recorded at present is few, and do not study clear completely to factors such as earthquake generation, propagation, particularly the impact understanding of rarely occurred earthquake on engineering structures performance is also not enough, and the uncertainty of geological process on the impact of engineering structures is very big.
The requirement of engineering structures system reliability in the world can for using for reference without ripe method, and have obvious weak part due to the irregular of insecure engineering structures, its building structure may cause heavy damage under great earthquake.
Summary of the invention
The object of the invention is to provide a kind of Structural Reliability Evaluation method based on elastic-plastic analysis theory, in the world can for using for reference without ripe method with the requirement solving engineering structures system reliability in prior art, have obvious weak part due to the irregular of insecure engineering structures, its building structure may cause the problem of heavy damage under great earthquake.
For achieving the above object, the invention provides a kind of Structural Reliability Evaluation method based on elastic-plastic analysis theory, wherein, comprise the following steps: under the pattern that rectangle loads, seismic influence coefficient maximum value under adjustment horizontal earthquake action and the interval range of response spectrum, obtain the reaction range of geological process structure; Interval arithmetic is used to determine the non-probability decision degree of structure; And adopt interval story drift limit value method interval to determine the displacement of targets under structural earthquake effect, interval according to displacement of targets, thus determine the reliability of engineering structures.
The present invention has following beneficial effect: according to the reliability of elastic-plastic analysis theoretical appraisal engineering structures under the effects such as earthquake, according to the reliability of displacement of targets Interval evaluation, the engineering structures redesigned not only maximum lateral displacement significantly reduces, and lateral deformation is tending towards even.
Detailed description of the invention
A kind of Structural Reliability Evaluation method based on elastic-plastic analysis theory that this preferred embodiment provides, wherein, its specific implementation process is as follows, wherein, comprises the following steps:
Under the pattern that rectangle loads, the seismic influence coefficient maximum value under adjustment horizontal earthquake action and the interval range of response spectrum, obtain the reaction range of geological process structure;
Interval arithmetic is used to determine the non-probability decision degree of structure; And
Adopt interval story drift limit value method interval to determine the displacement of targets under structural earthquake effect, interval according to displacement of targets, thus determine the reliability of engineering structures.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect:
According to the reliability of elastic-plastic analysis theoretical appraisal engineering structures under the effect such as earthquake, according to the reliability of displacement of targets Interval evaluation, the engineering structures of redesign not only maximum lateral displacement significantly reduces, and lateral deformation is tending towards even.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention; For a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1., based on a Structural Reliability Evaluation method for elastic-plastic analysis theory, it is characterized in that, comprise the following steps:
Under the pattern that rectangle loads, the seismic influence coefficient maximum value under adjustment horizontal earthquake action and the interval range of response spectrum, obtain the reaction range of geological process structure;
Interval arithmetic is used to determine the non-probability decision degree of structure; And
Adopt interval story drift limit value method interval to determine the displacement of targets under structural earthquake effect, interval according to displacement of targets, thus determine the reliability of engineering structures.
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| CN201410762081.9A CN104612274A (en) | 2014-12-13 | 2014-12-13 | Structural reliability assessment method based on elastic-plastic analysis theory |
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| CN201410762081.9A CN104612274A (en) | 2014-12-13 | 2014-12-13 | Structural reliability assessment method based on elastic-plastic analysis theory |
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Cited By (2)
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| CN105160055A (en) * | 2015-07-07 | 2015-12-16 | 重庆大学 | Brand-new displacement-based seismic design method for framework structure |
| CN105892284A (en) * | 2016-05-10 | 2016-08-24 | 北京航空航天大学 | Method for designing structural vibration PID (Proportion Integration Differentiation) control system based on non-probabilistic reliability optimization |
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| CN103646166A (en) * | 2013-11-18 | 2014-03-19 | 广东电网公司电力科学研究院 | Power station high-temperature pipe system maintenance method based on non-probability reliability theory |
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| KR20110103520A (en) * | 2010-03-15 | 2011-09-21 | 한국건설기술연구원 | Multi-story coupled seismic energy dissipation system with displacement amplification |
| WO2012159239A1 (en) * | 2011-05-20 | 2012-11-29 | 青岛理工大学 | Multiple-objective and performance-based earthquake proof method of engineering structures |
| CN103646166A (en) * | 2013-11-18 | 2014-03-19 | 广东电网公司电力科学研究院 | Power station high-temperature pipe system maintenance method based on non-probability reliability theory |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105160055A (en) * | 2015-07-07 | 2015-12-16 | 重庆大学 | Brand-new displacement-based seismic design method for framework structure |
| CN105160055B (en) * | 2015-07-07 | 2018-01-16 | 重庆大学 | A kind of Seismic Design Method of the frame structure based on displacement |
| CN105892284A (en) * | 2016-05-10 | 2016-08-24 | 北京航空航天大学 | Method for designing structural vibration PID (Proportion Integration Differentiation) control system based on non-probabilistic reliability optimization |
| CN105892284B (en) * | 2016-05-10 | 2019-01-08 | 北京航空航天大学 | A kind of structural vibration PID control system design method based on Multidisciplinary systems optimization |
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Application publication date: 20150513 |