Seismic Damage Estimation Through Measurable Dynamic Characteristics
IR@SERC: CSIR-Structural Engineering Research Centre, Chennai
View Archive Info| Field | Value | |
| Title |
Seismic Damage Estimation Through Measurable Dynamic Characteristics
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| Creator |
Lakshmanan, N.
Raghuprasad, B.K. Muthumani, K. Gopalakrishnan, N. Sreekala, R. |
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| Subject |
Seismic damage indicators
Wavelet analysis Soft/weak storey structure. |
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| Description |
Ductility based design of reinforced concrete structures implicitly assumes certain damage under the action of a design basis earthquake. The damage undergone by a structure needs to be quantified, so as to assess the post-seismic reparability and functionality of the structure. The paper presents an analytical method of quantification and location of seismic damage, through system identification methods. It may be noted that soft ground storied buildings are the major casualties in any earthquake and hence the example structure is a soft or weak first storied one, whose seismic response and temporal variation of damage are computed using a non-linear dynamic analysis program (IDARC) and compared with a normal structure. Time period based damage identification model is used and suitably calibrated with classic damage models. Regenerated stiffness of the three degrees of freedom model (for the three storied frame) is used to locate the damage, both on-line as well as after the seismic event. Multi resolution analysis using wavelets is also used for localized damage identification for soft storey columns.
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| Date |
2009
2009 2007 |
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| Type |
Article
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| Identifier |
Computers and Concrete, Vol.4, No.3, 2007, pp.167-186
http://hdl.handle.net/123456789/26 |
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| Language |
en
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| Rights |
It is tried to respect the rights of the copyright holders to the best of the knowledge. If it is brought to our notice that the rights are violated then the item would be withdrawn.
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| Publisher |
Techno Press
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