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http://hdl.handle.net/123456789/406
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| Title: | A New Approach for Damage Identification in Multi Storey Shear Structure from Sparse Modal Information |
| Authors: | Panigrahi, S K
Chakraverty, S
Mishra, B K |
| Keywords: | Shear structure
Residual force
Genetic algorithm
Damage
2009
Multi storey shear structure |
| Issue Date: | 29-Sep-2011 |
| Abstract: | 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. |
| Description: | Trends and Challenges in Structural Engineering and Construction Technologies, 11-12, February 2009, CBRI Roorkee, India |
| URI: | http://hdl.handle.net/123456789/406 |
| Appears in Collections: | Published Articles
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