A New Approach for Damage Identification in Multi Storey Shear Structure from Sparse Modal Information
IR@CBRI: CSIR-Central Building Research Institute, Roorkee
View Archive Info| Field | Value | |
| Creator |
Panigrahi, S K
Chakraverty, S Mishra, B K |
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| Date |
2011-09-29T09:20:40Z
2011-09-29T09:20:40Z 2011-09-29T09:20:40Z |
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| Identifier |
http://hdl.handle.net/123456789/406
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| Description |
Trends and Challenges in Structural Engineering and Construction Technologies, 11-12, February 2009, CBRI Roorkee, India
This paper presents a procedure to identify the damage of a multi storey shear structure using residual force vector method along with Genetic Algorithm (GA) from sparse modal information. In system identification of structural problems, a large number of degrees of freedom in their finite element models are required. It is difficult and expensive to measure modal response at many locations. A technique has been first described to compute the full mode shape from partial mode shape for a particular frequency. Then the concept of the residual force vector is used to specify an objective function using the computed modal information. Finally GA has been implemented for optimizing this function to get the damage factors. Experimental data are simulated numerically by solving eigen value problem of the damaged structure with inclusion of random noise on the vibration characteristics. Reliability of the procedure has been shown by various examples of multi storey structure with different known modal information. |
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| Language |
en
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| Subject |
Shear structure
Residual force Genetic algorithm Damage 2009 Multi storey shear structure |
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| Title |
A New Approach for Damage Identification in Multi Storey Shear Structure from Sparse Modal Information
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| Type |
Article
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