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Rajaram, Chenna
- Correlation Between Building Damage, Ground Motion Parameters and Input Energy: A Novel Ranking Scheme Using Multivariate Analysis
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Authors
Affiliations
1 Department of Civil Engineering, Rajeev Gandhi Memorial College of Engineering and Technology, Nandyal 518 501, India., IN
2 Earthquake Engineering Research Centre, International Institute of Information Technology, Hyderabad 500 032, India., IN
1 Department of Civil Engineering, Rajeev Gandhi Memorial College of Engineering and Technology, Nandyal 518 501, India., IN
2 Earthquake Engineering Research Centre, International Institute of Information Technology, Hyderabad 500 032, India., IN
Source
Current Science, Vol 124, No 2 (2023), Pagination: 190-201Abstract
The present study describes the interdependency between earthquake ground motion parameters and seismic damage to various buildings. A novel ranking procedure between energy, damage and seismic risk has been proposed for buildings subjected to ground motions. Correlation analysis was done between damage to buildings, energy and total energy to confirm the trend of parameters and their influence on total energy ranking. It was found that high peak ground acceleration (PGA) or high energy alone may not lead to extensive damage to the buildings. However, they were affected by the predominant frequency, duration of ground motion and amplitude. A correlation study was performed using over 300 ground motions datasets. It was found that the seismic damage of low-rise buildings had a moderate correlation with root mean square acceleration, characteristic intensity, sustained maximum acceleration and effective design acceleration. Also, a weak correlation was observed between seismic damage of high-rise, tall buildings and (V/H)PGA, Arms. The damage and seismic risk rankings may help change Government policies for retrofitting buildings.Keywords
Buildings, Ground Motion Parameters, Multi-Variate Analysis, Seismic Risk.Full Text
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