Any additional loads applied to a damaged structure can aggravate its instability and thus, the impact of successive earthquakes need to be considered. This study proposed a quantitative assessment model for the fragility of a damaged structure subjected to aftershock. Mean period and the strong motion duration were considered as characteristics of earthquake motions. Simulation models of two reinforced concrete structures and one steel structure were selected to examine the applicability of the model. Based on the suggested fragility and residual deformation coefficients, critical earthquake sequences for each structure were identified. The proposed model was efficient in selecting critical earthquake sequences by using the limited number of aftershocks, and these sequences are expected to be useful indicators in the establishment of a retrofit plan according to the predicted structural response and target performance levels.
|Number of pages||18|
|Journal||Computer-Aided Civil and Infrastructure Engineering|
|Publication status||Published - 2018 Aug|
Bibliographical noteFunding Information:
This work was supported by a National Research Foundation of Korea grant funded by the Korea government (Ministry of Science, ICT & Future Planning, MSIP) (No. 2011–0018360).
© 2018 Computer-Aided Civil and Infrastructure Engineering
All Science Journal Classification (ASJC) codes
- Civil and Structural Engineering
- Computer Science Applications
- Computer Graphics and Computer-Aided Design
- Computational Theory and Mathematics