Smart property of homogeneous electrorheological fluid and its application in reducing seismic responses of engineering structures

Qu, Weilian; Guan, Jianguo; Ma, Hui; Run-zhang, Yuan; Jian-wei, TU; Chen, Bo

doi:10.1007/bf02838545

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…It is necessary to establish the simplified model with beam element reflecting the damage. Its equivalent method is stated as below [5].…”

Section: The Multi-span Continuing Bridge's Model Reflecting Concrete...mentioning

confidence: 99%

The Fractional Diagnosis of Multi-Span Continuous Bridge’s Structural Damage Based on Neural Network and Genetic Algorithm

Li¹,

2011

AMM

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The natural environmental erosion and human factors such as the impact of traffic accidents, crack propagation, concrete carbonation and etc, make the bridge’s damage more serious. Therefore, the bridge damage diagnosis has become a hot field of bridge engineering issues. This paper put forward the fractional diagnosis method of multi-span bridge structure reflecting the structural cracks and carbonation damage. In this paper, adopting the optimization equivalent method, the finite element model of damaged structure is set up according to the damaging characteristic of multi-span continuous bridge structure. A damage index of strain mode with practical meanings is adopted which can reflect local damage. Basing on this index, fractional-step detection method of structural damage is presented. The first step is to identify the damage region, then locate the detailed damage location and degree; Performance of the proposed damage detection approach is demonstrated with analysis of a multi-span continuous bridge. The result turns up trumps.

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“…It is necessary to establish the simplified model with beam element reflecting the damage. Its equivalent method is stated as below [5].…”

Section: The Multi-span Continuing Bridge's Model Reflecting Concrete...mentioning

confidence: 99%

The Fractional Diagnosis of Multi-Span Continuous Bridge’s Structural Damage Based on Neural Network and Genetic Algorithm

Li¹,

2011

AMM

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“…It should be noticed that the indicator of elemental modal strain change need complete single modal shape measured for damage identification. In practice, when the measured degrees of freedom are less than the degrees of freedom used in the structural finite element model, they can be expanded by amending quality matrix concentrated by Guyan [8] , enlarging modal shape [9] , expanding dynamic ranks [10] and so on.…”

Section: Theoretical Foundation For the Presented Detective Indicator...mentioning

confidence: 99%

Damage Detection for Truss Structures Depending on Method of Change in Elemental Modal Strain

Sun

Yang

et al. 2010

AMR

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In order to improve efficiency and reliability for damage detection, based on the characteristics of truss structures, the elemental modal strain can be derived from the nodal modal displacements by means of the finite element method on spatial truss elements connected by pin at elemental two nodes. Therefore it is presented as a new dynamic detective indicator using changes between an intact structure and a corresponding destructive structure in the elemental lower modal strain, and then a new method of damage localization named as change in elemental modal strain is set up for truss structures. A numerical example for a planar truss structure is provided to verify the practicability of the method only by one lower mode. The results show that this method is effective to locate not only single damage but also multiple ones, both light damages and severe ones. Furthermore, the results indicate that the proposed method based on modal strain of truss elements can accurately detect damage locations of truss structures with the noisy modal data.

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In-situ composition and luminescence of europium and terbium coordination polymers/PEMA hybrid thick films

Yan

Wang

2005

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

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Smart property of homogeneous electrorheological fluid and its application in reducing seismic responses of engineering structures

Cited by 3 publications

References 6 publications

The Fractional Diagnosis of Multi-Span Continuous Bridge’s Structural Damage Based on Neural Network and Genetic Algorithm

The Fractional Diagnosis of Multi-Span Continuous Bridge’s Structural Damage Based on Neural Network and Genetic Algorithm

Damage Detection for Truss Structures Depending on Method of Change in Elemental Modal Strain

In-situ composition and luminescence of europium and terbium coordination polymers/PEMA hybrid thick films

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